Seismic trigger device

Abstract

Provided is a seismic trigger device that generates a soft and effective pulling force. 【Solution means】A seismic trigger device that detects vibration and generates a triggering action, comprising a first space portion including a support mechanism for supporting a weight and the weight placed on the support mechanism, and a second space portion including a traction member to which a traction member is attached so as to be inserted from the outside to the inside of the second space portion, wherein the weight is configured to drop the first space portion by vibration of a predetermined magnitude when placed on the support mechanism, and the weight and / or the traction member is a magnet, and a distance from an upper portion of the traction member in the second space portion to a ceiling portion in the second space portion is a length at which the traction member is adsorbed by the dropped weight when the weight drops to a bottom surface of the first space portion.

Description

Technical Field

[0001] The present invention relates to a device for detecting seismic vibrations, and more particularly to a device that uses the detected vibrations as a trigger to perform functions such as a switch.

Background Art

[0002] Conventionally, there are devices that detect or sense abnormal vibrations such as earthquakes and instantaneously trip switches such as breakers or cut off power supply.

[0003] For example, a seismic short - circuit device has been proposed that can prevent fire accidents caused by electrical equipment during a major earthquake by instantaneously tripping the circuit breaker in a building (Patent Document 1).

[0004] That is, Patent Document 1 discloses a seismic short - circuit device provided with a short - circuit ball made of a magnetic metal material that drops or flies within a desired box at or above a set seismic intensity. Below this short - circuit ball, an electrode that is short - circuited by contact with this short - circuit ball is disposed, and a plug terminal of the electrode is provided directly outside the box or indirectly via a conductor. In a state where the plug terminal is connected to a desired outlet disposed in the electrical wiring in a building, an overcurrent is passed through the electrical wiring in the building based on the short - circuit of the electrode due to the dropping or flying contact of the short - circuit ball, causing the circuit breaker of the power supply unit to operate and instantaneously cut off the power supply to the building electrical wiring. The seismic short - circuit device is characterized in that one or more magnet members for magnetic attraction of the short - circuit balls are disposed in the vicinity of the lower part of the electrode.

[0005] In addition, a device has been proposed that detects that a steel ball has separated from a magnet by a switch and promptly causes a breaker to cut off the power supply (Patent Document 2).

[0006] That is, Patent Document 2 discloses a power cut-off device characterized by including a magnet that adsorbs a steel ball on the lower surface side via an adsorption force adjustment member, a lift rod that is vertically movable with its lower end supported by the steel ball adsorbed by the magnet, and a switch that is operated by the lift rod that descends as the steel ball drops and supplies a tripping current to a circuit breaker inserted into a power circuit.

[0007] In addition, a device for automatically opening a door during an earthquake has been proposed (Patent Document 3).

[0008] That is, Patent Document 3 discloses an automatic door opening device characterized by including a weight, a support means for supporting the weight so that the weight can drop when vibration occurs, a door opening biasing means for applying the spring force of a spring to the door to open the door, a detachable engagement means for engaging with the door opening biasing means, locking the door opening biasing means to prevent the spring force from acting on the door, and a detachable engagement means for disengaging the engagement with the door opening biasing means by the weight dropping from the support means, and a lock release means for driving a lock means for fixing the door to a door frame with a battery as a power source when the weight drops from the support means to release the locked state of the door with respect to the door frame.

[0009] In addition, a method and a device thereof have also been proposed for preventing the occurrence of a fire due to electric leakage or abnormal heat generation by attaching to an existing breaker in an indoor distribution board of a house or a building, detecting abnormal vibrations such as an earthquake, dropping the lever switch of the breaker, and cutting off the power circuit in the house or the building (Patent Document 4).

[0010] That is, Patent Document 4 discloses a vibration-sensing switch cutting method for a breaker, which engages a weight through a string-like body from the tip of the reverse switch of the breaker, and supports the weight engaged with the string-like body on a pedestal attached vertically to the reverse switch and appropriately spaced apart from the reverse switch in a statically stable manner and with a slack in the string-like body to make it dynamically unstable due to vibrations received by the pedestal. When an earthquake of a certain seismic intensity or more is detected, the weight can be dropped from the pedestal, and the reverse switch is pushed downward by the impact force caused by the dropping of the weight to cut off the power circuit.

Prior Art Documents

Patent Documents

[0011]

Patent Document 1

Patent Document 2

Patent Document 3

Patent Document 4

Summary of the Invention

Problems to be Solved by the Invention

[0012] However, in conventional devices and methods, the direction of the physical force generated for switching is solely a pushing force, and for example, an effective pulling force could not be generated. Furthermore, a force that pulls in the horizontal direction could not be generated.

[0013] In view of the above problems, an object of the present invention is to provide a seismic trigger device that generates a flexible and effective pulling force without limiting the direction of the physical force generated for switching to only the pushing direction.

Means for Solving the Problems

[0014] Therefore, an apparatus according to an embodiment of the present invention is a seismic trigger device that detects vibration and generates a triggering action, and includes a first space portion (510) including a support mechanism for supporting a weight and a weight (512) placed on the support mechanism, and a second space portion (520) including a traction member (521) to which a traction member (522) is attached so as to be inserted from the outside to the inside of the second space portion. The weight (512) is configured to drop the first space portion (510) by vibration of a predetermined magnitude when placed on the support mechanism. The weight (512) and / or the traction member (521) is a magnet, and the distance from the upper portion of the traction member (521) in the second space portion to the ceiling portion in the second space portion is a length at which the traction member (521) is attracted to the dropped weight (512) when the weight (512) drops to the bottom surface of the first space portion (510).

[0015] Also, a seismic trigger device that detects vibration and generates a triggering action, includes a first space portion (110) including a support mechanism (111 + 114) for supporting a weight and a weight (112) placed on the support mechanism, a second space portion (120) including a traction member (121) to which a traction member (122) is attached so as to be inserted from the outside to the inside of the second space portion, and a third space portion (130) including a direction changing member (131) that inserts the traction member from the inside to the outside of the third space portion (130) and changes the traction direction of the traction member. The weight (112) is configured to drop the first space portion (110) by vibration of a predetermined magnitude when placed on the support mechanism. The weight (112) and / or the traction member (121) is a magnet, and the distance from the upper portion of the traction member (121) in the second space portion to the ceiling portion in the second space portion is a length at which the traction member (121) is attracted to the dropped weight (112) when the weight (112) drops to the bottom surface of the first space portion (110).

[0016] According to an embodiment of the present invention, it is possible to provide a seismic trigger device that generates a flexible and effective traction force without limiting the direction of the physical force generated for switching to the pushing direction.

[0017] Also, according to an embodiment of the present invention, it is possible to provide a seismic trigger device that generates a horizontal traction force generated for switching.

Brief Description of the Drawings

[0018]

Figure 1

Figure 2A

Figure 2B

Figure 2C

Figure 2D

Figure 3A

Figure 3B

Figure 4

Figure 5

Figure 6

Figure 7A

Figure 7B

Embodiments for Carrying Out the Invention

[0019] Hereinafter, an earthquake-sensitive trigger device according to an embodiment of the present invention will be described in detail with reference to the drawings.

[0020] Fig. 1 shows the overall structure of an earthquake-sensitive trigger device according to an embodiment of the present invention. In the figure, a cross-sectional structure of the entire earthquake-sensitive trigger device 100 as viewed from the side is shown. In one embodiment of the present invention, the size of the earthquake-sensitive trigger device 100 is on the order of about 10 cm to about 30 cm in height and on the order of about 3 cm to about 8 cm in width, although it is not limited to these. Also, the cross-sectional shape when the earthquake-sensitive trigger device 100 is viewed from above can adopt various shapes such as a circular shape and a rectangular shape (this will be described later with reference to FIGS. 3A and 3B).

[0021] In Fig. 1, the earthquake-sensitive trigger device 100 has three space parts: a first space part 110, a second space part 120, and a third space part 130. These space parts are separated by partition parts 113 and 123. The upper surface of the partition part 113 is the bottom of the first space part 110, and the lower surface of the partition part 113 is the ceiling of the second space part 120. Also, the upper surface of the partition part 123 is the bottom of the second space part 120, and the lower surface of the partition part 123 is the ceiling of the third space part 130. 132 constitutes the bottom of the third space part 130, but the bottom 132 is not necessarily an essential configuration (it can be omitted).

[0022] Inside the first space part 110, there are provided support mechanisms 111 and 114 for supporting weights, and weights 112 placed on the support mechanisms 111 and 114. In one embodiment of the present invention, the weight 112 is a magnet or a magnetic material. The weight 112 placed on the support mechanisms 111 and 114 is configured to fall due to vibrations applied to the seismic trigger device 100. The degree of vibration that causes the weight 112 to fall depends on the structure of the support mechanisms 111 and 114 (described later). The fallen weight 112 falls to the bottom of the space 110 (112' in the figure).

[0023] Further, the second space 120 is provided with a traction member 121 to which a towed member 122 is attached so as to be inserted from the outside (the third space 130 in the figure) into the inside. The traction member 121 is placed at the bottom of the second space 120 during normal use. In one embodiment, a hole is provided having a diameter such that the traction member 121 does not fall out of the second space 120 into the third space 130, and the towed member 122 is passed through this hole into the third space 130.

[0024] In one embodiment of the present invention, the traction member 121 is a magnet or a magnetic material, and the towed member 122 is a string or wire regardless of the material. Further, at least one of the weight 112 and the traction member 121 is a magnet (both are not non-magnetic materials). As described above, when the weight 112 falls to the bottom within the space 110, the traction member 121 provided in the second space 120 is pulled up by magnetic force and adsorbed to the ceiling of the space 120 (the details of the operation will be described later).

[0025] The third space 130 is provided with a direction conversion member 131 that allows the towed member 122 to be inserted from the inside of the third space 130 to the outside (for this purpose, a hole is provided on the side surface of the third space 130 in the figure), and that converts the towing direction of the towed member 122 from the vertical direction in the figure to the horizontal direction.

[0026] In one embodiment of the present invention, the direction-changing member 131 is a pulley mechanism. Alternatively, it may be a bar with low frictional resistance without a pulley. When the direction-changing member 131 is a bar, the member to be towed is hung on this bar to change the pulling direction. In one embodiment of the present invention, when the towing member 121 to which the member to be towed 122 is attached is pulled upward in the drawing, the vertical pulling force becomes a horizontal pulling force (the force in the direction of the arrow in the drawing) via the direction-changing member 131.

[0027] Here, as described above, when the weight 112 is placed on the support mechanisms 111 and 114, it is configured to fall into the first space portion 110 due to vibrations of a predetermined magnitude. And the distance from the upper end of the normal towing member 121 installed in the second space portion 120 to the ceiling portion in the second space portion 120 is such that when the weight 112 falls to the bottom 113 of the first space portion 110 (in the drawing, it falls to the position of 112'), the towing member 121 is adsorbed by the fallen weight 112' and adheres to the ceiling portion in the second space portion 120 (in the drawing, it adheres to the position of 121').

[0028] Therefore, when the towing member 121 is adsorbed by the fallen weight 112' and adheres to the ceiling portion in the second space portion 120, the member to be towed 122 is instantaneously pulled by that amount, and a pulling force acts on the member to be towed 122 extending from the third space portion 130 to the outside.

[0029] Next, with reference to FIGS. 2A to 2D, an operation example of the seismic trigger device 100 according to one embodiment of the present invention will be described. The same members as those in the seismic trigger device 100 shown in FIG. 1 are given the same reference numerals. Note that P in the drawing indicates a certain position on the member to be towed 122 extending outside the third space portion 130.

[0030] FIG. 2A shows the normal state of the seismic trigger device 100. The weight 112 is placed on the support mechanisms 111 and 114. Further, in the second space portion 120, a traction member 121 is placed on its bottom, and a towed member 122 attached to the traction member 121 extends vertically to the third space portion 130 through a hole provided in the bottom, and its direction is converted to the horizontal direction through a direction conversion member 131, and extends out to the outside through a hole provided in the side portion of the third space portion 130. As described above, in other embodiments, the bottom portion 132 can be omitted.

[0031] FIG. 2B shows a state in which vibration is transmitted from the outside to the seismic trigger device 100 in FIG. 2A and the weight 112 has started to fall from the support mechanisms 111 and 114. The weight 112 falls to the bottom of the first space portion 110.

[0032] FIG. 2C shows a state in which the weight 112 that has fallen in the seismic trigger device 100 of FIG. 2B is approaching the bottom of the first space portion 110. At this time, the traction member 121 placed in the second space portion 120 has begun to be attracted to the weight 112 by magnetic force. Here, either one or both of the weight 112 and the traction member 121 are magnets, and when either one of them is not a magnet, it is a magnetic body. Therefore, when they are in a positional relationship within a certain distance, they are attracted by the magnetic force. FIG. 2C shows a state immediately before reaching such adsorption. Due to this adsorption phenomenon, the towed member 122 attached to the traction member 121 is pulled, and the position P is attracted to the right side (seismic trigger device 100 side) in the figure.

[0033] FIG. 2D shows a state in which the weight 112 that was falling in the seismic trigger device 100 of FIG. 2C has grounded on the bottom of the first space portion 110. At this time, the traction member 121 placed in the second space portion 120 is in an adsorbed state with the weight 112 through the partition portion 113 by magnetic force. It can be seen that the position P in FIG. 2D is attracted more to the seismic trigger device 100 side than the position in FIG. 2C.

[0034] Figures 3A and 3B show specific variations of the support mechanisms 111 and 114 among the configurations of the earthquake-sensitive trigger device according to an embodiment of the present invention. FIG. 3A illustrates the support mechanism when the cross-sectional shape of the earthquake-sensitive trigger device viewed from directly above is circular, and FIG. 3B illustrates the support mechanism when the cross-sectional shape of the earthquake-sensitive trigger device viewed from directly above is rectangular.

[0035] In FIG. 3A, the support mechanisms 311 and 314 are composed of three support members 311a to 311c and a mounting table 314 for placing the weight (311 corresponds to 111 in FIG. 1, and 314 corresponds to 114 in FIG. 1). In the figure, the mounting table 314 is configured in an inverted umbrella shape with a depression when viewed from the side. This "inverted umbrella shape" is a cone without a bottom surface, and can also be referred to as a "conical surface" or the "side surface of the cone". As a specific example, it is a shape obtained by cutting off the bottom of a cone made of origami and leaving only the side surface.

[0036] The support members 311a to 311c are configured to suspend the mounting table 314 from three sides, and the other ends of each are fixed to the inner wall of the earthquake-sensitive trigger device. Note that the support members 311a to 311c can be composed of strings, wires, or other rod-shaped members, and there are no restrictions on the material as long as the strength as a support mechanism is maintained. Also, for the mounting table 314, there are no restrictions on the material as long as the function and strength of placing the weight are achieved.

[0037] In FIG. 3B, the support mechanisms 321 and 324 are composed of four support members 321a to 321d and a mounting table 324 for placing the weight (321 corresponds to 111 in FIG. 1, and 324 corresponds to 114 in FIG. 1). In the figure, the mounting table 324 is configured in an inverted umbrella shape with a depression when viewed from the side. Here, the "inverted umbrella shape" has the same meaning as that in FIG. 3A, but since the cross-sectional shape (when viewed from above) of the earthquake-sensitive trigger device is a pyramid here, it can be referred to as a pyramid without a bottom surface. As a specific example, it is a shape obtained by cutting off the bottom of a pyramid made of origami and leaving only the side surface.

[0038] The support members 321a to 321d are configured to suspend the mounting table 324 from all four sides, and the other ends of each are fixed to the four corners of the inner wall of the earthquake-sensitive trigger device. Note that the support members 321a to 321d can be composed of strings, wires, or other rod-shaped members, and there are no restrictions on the material as long as the strength as a support mechanism is maintained. Also, there are no restrictions on the material of the mounting table 324 as long as the function and strength of placing weights are achieved.

[0039] [Sensitivity adjustment of earthquake sensing] In the earthquake-sensitive trigger device according to an embodiment of the present invention, as a method for adjusting the earthquake-sensitive sensitivity, the sensitivity can be adjusted by changing the shape of the inverted umbrella-shaped mounting table described with reference to FIGS. 3A and 3B as follows. (1) Change the depth of the mounting table. Generally, when the mounting table is formed deeper, the earthquake-sensitive sensitivity becomes dull (it becomes difficult for the weight placed on the mounting table to fall). (2) Change the width of the upper part of the mounting table. Generally, when the mounting table is formed wider (increase the area), the earthquake-sensitive sensitivity becomes dull (it becomes difficult for the weight placed on the mounting table to fall). (3) Combine (1) and (2) above. By combining (1) and (2) above, more delicate sensitivity adjustment becomes possible.

[0040] FIG. 4 shows variations of the traction member among the constituent members of the earthquake-sensitive trigger device according to an embodiment of the present invention. In FIG. 4(A), the traction member 401 is a sphere. In FIG. 4(B), the traction member 401 is a cylinder. The present invention is not limited to these, and traction members of various shapes can be adopted.

[0041] FIG. 5 shows another structural example of the earthquake-sensitive trigger device according to an embodiment of the present invention. The earthquake-sensitive trigger device 500 shown in the figure has the same basic structure as the earthquake-sensitive trigger device 100 shown in FIG. 1 and the like, but is different from the earthquake-sensitive trigger device 100 in that the number of space parts is two instead of three. Except for the above different parts, 510 corresponds to 110, 520 corresponds to 120, 511 and 514 correspond to 111 and 114, 512 corresponds to 112, 513 corresponds to 113, 521 corresponds to 121, 522 corresponds to 122, and 523 corresponds to 132.

[0042] In FIG. 5, the feature of the seismic trigger device 500 seems to have a structure in which the towed member 522 is vertically towed by the towing member 521. The towing direction is from approximately 0° (substantially horizontal) to approximately 90° (vertically downward) at a depression angle, and the direction in the horizontal plane for towing can also be freely set at 360°. In order to exhibit such performance, in one embodiment, rounding or the like is performed to reduce the frictional resistance around the inner circumference of the hole provided at the bottom of the second space portion 520 (the hole through which the towed member 522 passes). Further, when obtaining a towing force at a depression angle of substantially 0°, when the towed member 522 is towed, legs (not shown) are provided at the bottom of the seismic trigger device 500 so that the towed member 522 is sandwiched between the upper part of the mounting table of the seismic trigger device 500 and the bottom of the device 500 and does not rub more than necessary.

[0043] With such a configuration, not only can a towing force at a depression angle of substantially 0° be obtained when the seismic trigger device 500 is placed on any plane, but also, for example, when the device 500 is fixed to a wall surface, a towing force in an arbitrary direction in the horizontal plane can be obtained at an arbitrary depression angle (for example, 30 degrees or 60 degrees). Then, by using this towing force, it can function as various trigger switches (so-called pull switches) such as turning off the power of a lighting fixture, pulling a string of a life assistance device such as a calling alarm, and pulling a push bar.

[0044] FIG. 6 shows a usage mode of the seismic trigger device according to an embodiment of the invention. In the figure, the seismic trigger device according to an embodiment of the invention is adopted as a trigger device for a trap for capturing birds, small animals, etc.

[0045] In FIG. 6, the seismic trigger device 601 serves as a trigger device for pulling the support rod 603 that supports the capture umbrella 602. The lower part of the support rod 603 is firmly connected to the member 604 to be pulled. When the seismic trigger device 601 is seismically actuated, it instantaneously pulls the member 604 to be pulled, knocks down the support rod 603, and causes the capture umbrella 602 to lie down on the ground. As a result, birds, small animals, etc. that were inside at this time can be captured.

[0046] In FIG. 6, a bait dish 6011 is provided on the upper part of the seismic trigger device 601. In one embodiment, birds, small animals, etc. gather aiming at the bait (not shown) supplied to this bait dish 6011, peck at the bait dish 6011, or come into contact with the seismic trigger device 601 to give a certain seismic intensity to the device 601. Thus, the seismic trigger device 601 is actuated and the capture as described above is successful.

[0047] Note that as a method of installing the seismic trigger device 601 on the ground, if the device 601 is simply placed on the ground, the sensing device 601 may easily tip over and may not be able to transmit an effective pulling force to the member 604 to be pulled. Therefore, as a more suitable installation method for the seismic trigger device 601, first, a fixture is driven into the ground (not shown), a mounting base made of a material such as rubber is fixed to this fixture (not shown), and the seismic trigger device 601 is firmly fixed to this mounting base. This mounting base is made of a material such as rubber itself and has elasticity, but since it is fixed to the fixture, it does not cause the device 601 to shift in position, and while causing a slight deflection against sudden external vibrations, it avoids tipping over and damage, and plays a role in stably operating the device 601.

[0048] By performing such installation, the seismic trigger device 601 will not tip over or be damaged even when receiving shaking greater than the seismic sensitivity, and appropriately receives the shaking to be sensed and operates normally.

[0049] Figures 7A and 7B illustrate other usage modes of the earthquake-sensitive trigger device according to an embodiment of the invention together with its operation. Figure 7A shows the state before activation, and Figure 7B shows a series of operations of the state after activation.

[0050] In Figure 7A, 702 and 703 are earthquake-sensitive trigger devices according to an embodiment of the invention. The earthquake-sensitive trigger devices 702 and 703 are fixedly attached to a shelf 701 such as a commodity shelf. 704 and 705 extending from the earthquake-sensitive trigger devices 702 and 703 are respectively traction members, and are respectively connected to spring extension devices 706 and 707 which are provided with a pull switch (not shown) and a spring mechanism that extends with the force of a spring. Also, 708 is a bellows net mechanism attached to the spring extension devices 706 and 707.

[0051] In Figure 7A, when the spring extension devices 706 and 707 operate as described above, the bellows net mechanism 708 is lifted upward and serves as a net as shown in Figure 7B.

[0052] Commodities such as wine bottles are usually placed on the commodity shelf. Even if vibrations such as an earthquake are applied to the commodity shelf, when the earthquake-sensitive trigger devices 702 and 703 sense an appropriate seismic intensity and operate, the net is lifted as shown in Figure 7B, preventing commodities such as wine bottles placed on the shelf 701 from falling. Also, since it can prevent the commodities from falling to the floor and glass fragments from scattering, an evacuation route can be secured, thus reducing damage in the earthquake disaster.

[0053] [Regarding the magnet and magnetic body used for the weight and / or traction member] In one embodiment of the present invention, at least one or both of the weight and the traction member can employ a magnet (when either one of them is a magnet, the other is a magnetic material). As the magnet in this case, a neodymium magnet can be employed as one embodiment of the present invention. The neodymium magnet is said to be the magnet with the strongest magnetic force among existing permanent magnets. Compared with the magnetic force of a general ferrite magnet, it has a magnetic force about eight times as strong. The strength of its magnetic force (adsorption force) is such that a 1 g neodymium magnet can lift a 1 kg magnetic material. By adopting such a powerful magnet, a suitable earthquake-sensitive trigger device can be provided.

[0054] Also, the traction force (adsorption force) generated by the traction member according to one embodiment of the present invention is about 4 N (Newton) to 7 N (Newton). Also, the size of the traction member is not limited to these in the present invention, but if it is a sphere, it is about 1 cm to 5 cm in diameter, and in the case of a cylinder, it has a size corresponding to this.

[0055] [Modification Example] Regarding the partition portions 113 such as in FIG. 1 and the partition portion 513 in FIG. 5, a planar shape is shown from the viewpoint of ease of understanding of the invention. However, the present invention is not limited to this, and for example, it may be in the shape of a mortar with its central part as the bottom. In that case, the distance between the lowermost end portion of the partition portion in the shape of a mortar and the upper end portion of the traction member placed in the second space portion during normal times is designed to be a distance that can sufficiently adsorb the dropped weight and the traction member.

[0056] As described above, based on specific examples, an earthquake-sensitive trigger device according to one embodiment of the present invention has been described. However, for all the constituent elements described in this specification (including the claims, the abstract, and the drawings) and / or all the steps of all the disclosed methods or processes, they can be combined in any combination except for combinations where these features are mutually exclusive.

[0057] Moreover, each of the features described in this specification (including the claims, abstract, and drawings) can be replaced by alternative features that serve the same purpose, equivalent purposes, or similar purposes, unless explicitly negated. Therefore, unless explicitly negated, each of the disclosed features is merely an example of a comprehensive series of identical or equivalent features.

[0058] Furthermore, the present invention is not limited to any specific configuration of the above-described embodiments. The present invention can be extended to all novel features or combinations thereof described in this specification (including the claims, abstract, and drawings), or all novel methods or process steps described, or combinations thereof.

Explanation of Reference Numerals

[0059] 100, 500 Seismic trigger device 110, 510 First space part 111, 114, 511, 514 Support mechanism 112, 512 Weight 113, 123, 513 Partition part 120, 520 Second space part 121, 401, 402, 521 Tension member 122, 522 Member to be tensioned 130 Third space part 131 Direction-changing member (such as a pulley mechanism)

Claims

1. A seismic trigger device that detects vibrations and generates a trigger action, A support mechanism for supporting the weight; A weight placed on the support mechanism; A first space portion comprising: a second space portion including a towing member having a towed member attached thereto so as to be inserted from the outside to the inside of the second space portion; having the weight is configured to drop from the first space by vibration of a predetermined magnitude when placed on the support mechanism, The weight and / or the towing member is a magnet; The distance from the top of the towing member in the second space to the ceiling of the second space is a length that allows the towing member to be attracted to the dropped weight when the weight falls onto the bottom surface of the first space. An apparatus comprising:

2. The device according to claim 1 , wherein the support mechanism comprises a dish portion for supporting the weight, and a support member for supporting the dish portion from the first space portion.

3. 3. The apparatus of claim 2, wherein the seismic sensitivity for the predetermined magnitude of vibration is adjusted by the size and / or depth of the dish.

4. A seismic trigger device that detects vibrations and generates a trigger action, A support mechanism for supporting the weight; A weight placed on the support mechanism; A first space portion comprising: A towing member, which is attached to a towed member and is inserted into a second space from the outside to the inside of the second space. A second space portion comprising: a third space portion, the third space portion including a direction changing member for inserting the towed member from inside to outside the third space portion and changing the towing direction of the towed member; having the weight is configured to drop from the first space by vibration of a predetermined magnitude when placed on the support mechanism, The weight and / or the towing member is a magnet; The distance from the top of the towing member in the second space to the ceiling of the second space is a length that allows the towing member to be attracted to the dropped weight when the weight falls onto the bottom surface of the first space. An apparatus comprising:

5. The apparatus of claim 4 , wherein the redirecting member is a pulley.

6. 6. The device according to claim 4, wherein the support mechanism comprises a dish portion for supporting the weight, and a support member for supporting the dish portion from the first space portion.

7. 7. The apparatus of claim 6, wherein the seismic sensitivity for a given magnitude of vibration is adjusted by the size and / or depth of the dish.

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