Post-attached earthquake breaker

Abstract

To easily attach a post-attached earthquake breaker by attaching a support part (4), which supports a weight (3), under the breaker since a conventional weight drop type vibration-sensitive current breaker operation tool is complicated although it is configured to attach a clip to a switch of a breaker, pass a chain through the clip, connect to the weight, and turn off the switch by dropping the weight from an L plate.SOLUTION: A post-attached earthquake breaker consists of a cap (1), a strap (2), the weight (3) and the support part (4). The cap (1) covers a tip of a switch (5) of the breaker. The strap (2) connects the cap (1) with the weight (3). The support (4) is configured to support the weight (3) from the lower side. The weight (3) is dropped by an earthquake and a switch (5') is turned off, thereby providing a simplified post-attached earthquake breaker.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a retrofit earthquake isolator in which a weight falls from a support part during an earthquake, turning off the switch of the isolator. [Background technology]

[0002] The conventional falling-weight type earthquake-sensitive current breaker operating device shown in Figure 4 of Patent Document 2, Utility Model Application No. 2004-739, is designed to be easily attached to a home breaker or distribution board, but there have been many complaints from people who have purchased the falling-weight type earthquake-sensitive current breaker operating device and are unable to install it.The falling-weight type earthquake-sensitive current breaker operating device has a clip (9a) attached to the breaker switch (9), which is connected to a weight (9c) via a chain (9b), and in the event of an earthquake, the weight (9c) falls from an L-plate (9d) to turn off the switch (9). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Actual Application 2014-4500 [Patent Document 2] Application 2004-739 [Patent Document 3] Patent application 2002-139270 DISCLOSURE OF THE INVENTION [Problem to be solved by the invention]

[0004] In the prior art, shown in Figure 4 of Patent Document 2 (Japanese Utility Model Application No. 2004-739, Title: Falling Weight Type Earthquake-Sensing Current Breaker Operating Device), a clip (9a) is attached to the breaker switch (9), which is then connected to a weight (9c) via a chain (9b). During an earthquake, the weight (9c) falls from an L-shaped plate (9d), turning off the switch (9). However, attaching the L-shaped plate (9d) to the breaker requires a hole to accommodate the breaker and avoid the switch (9), which is complicated. Therefore, if the L-shaped plate (9d) is removed from the breaker and attached to the wall below the breaker, installation is simpler, and since it is a retrofit, the breaker can be used as is.

[0005] Therefore, the retrofit earthquake breaker of the present invention provides a commercially available breaker in which a switch (5) and a weight (3) are connected by a string (2), and the weight (3) is placed on a support part (4) attached below the string (2), so that the switch (5) is turned off when the weight (3) falls due to the shaking of an earthquake. [Means for solving the problem]

[0006] To achieve the above object, the retrofit earthquake isolator of the present invention is composed of a cap (1), a string (2), a weight (3), and a support part (4), and the cap (1) is placed over the tip of the switch (5) of the existing isolator. The string (2) connects the cap (1) and the weight (3).

[0007] The support part (4) is made of nails (4a) or angles. When the support part (4) is attached with nails (4a), two nails (4a) are driven under the existing barrier and the weight (3) is fixed between the nails (4a). The bottom surface of the angle has holes for screws to attach it to the wall (6), so it is attached with screws. Alternatively, it can be attached with adhesive or double-sided tape.

[0008] The upper surface of the angle of the support part (4) has a hole (4b) in the center, which is smaller in diameter than the weight (3), and the weight (3) is placed on top of the hole (4b). During an earthquake, the support part (4) shakes, causing the weight (3) to fall from the support part (4), pulling the string (2'), which turns off the switch (5'). If the support part (4) is a nail (4a), the weight (3) fixed between the nails (4a) will also shake and fall, turning off the switch (5'), thereby achieving the purpose. [Effects of the Invention]

[0009] The retrofit earthquake isolator of the present invention has the following effects. (i) Since it is an after-market installation, the circuit breaker can be used as is. (See paragraph 0005 for details) (b) In the event of an earthquake, the circuit breaker will automatically trip. (See paragraph 0008 for details.) (c) Even when electricity is turned on, the circuit breaker remains off. (See paragraph 0017 for details) (d) The switch operates with a light force. (See paragraph 0019 for details.) (e) The switch operates with a light force, so a light weight is sufficient. (See paragraph 0019 for details) (F) The lighter the weight above your head, the safer it is. (See paragraph 0019 for details.) (G) It is easier than conventional products. (See paragraph 0004 for details.) (H) Figure 2 shows all the components of a retrofit earthquake isolator in a simple manner. [Brief explanation of the drawings]

[0010] [Figure 1] The figure is a perspective view of a retrofit earthquake isolator. [Figure 2] The figure shows a perspective view of all the components of the present invention. [Figure 3] The figure shows a front view and a partial cross section of a retrofit earthquake isolator. [Figure 4] The figure is a perspective view of a conventional falling weight type earthquake-sensitive current breaker operating device. BEST MODE FOR CARRYING OUT THE INVENTION

[0011] The retrofit earthquake circuit breaker of the present invention can be attached to all switches (5), but since the earth leakage circuit breaker is the main switch (5), we will explain how to shut off the switch (5). A cap (1) is placed on the switch (5) of the existing earth leakage circuit breaker, and a string (2) is attached to the cap (1), and the string (2) is designed to hang a weight (3).

[0012] The weight (3) is placed on the support (4). When an earthquake occurs, the weight (3) falls from the support (4), and the weight of the weight (3') pulls the string (2'), which is then transmitted to the cap (1'), which lowers the switch (5'), cutting off the power supply.

[0013] When a major earthquake occurs, the electricity goes out, but there are problems when it is restored, and it is not possible to check the status of each house. The reason is that if the electricity is not restored quickly, there is a risk of damage to appliances such as refrigerators that have been turned off. However, when the electricity is restored, there is a risk of fires starting from fallen electric stoves, so earthquake circuit breakers are necessary.

[0014] The earthquake breaker can be installed later, and requires only a cap (1), a string (2), a weight (3), and a support (4). The cap (1) is placed over the tip of the breaker switch (5), and when the cap (1) is placed over the tip of the switch (5) with adhesive or the like, the cap (1) is firmly fixed in place. The cap (1) is equipped with a string (2), and the string (2) is placed between the cap (1) and the weight (3).

[0015] The string (2) is about 30 cm long, and a support (4) is installed under the barrier. The support (4) has two nails (4a), and the spacing between the nails (4a) is important. In addition, an angle (4a) is used, and the underside of the angle (4a) has holes for screws to attach it to the wall (6), so it is attached with screws. Alternatively, it can be attached with glue or double-sided tape.

[0016] The upper surface of the angle (4a) has a hole (4b) in the center of the plane, and a weight (3) is placed on the hole (4b). During an earthquake, the weight (3) falls from the support (4) and pulls the string (2'). The length is about 30 cm, and the weight (3) placed on the support (4) falls about 10 cm, stretching the string (2'). The string (2') then pulls the cap (1') downward, which in turn pulls the switch (5') downward, cutting off electricity.

[0017] This retrofit earthquake isolator can be easily installed on the breaker of the circuit breaker or on the switches in each room, as long as the switch (5) is operated up and down. Also, even if the electricity in the area is restored, this retrofit earthquake isolator is safe because the electricity in your home will not be restored until you return the weight (3') to its original support (4) and turn on the switch (5). In other words, you should check all the rooms in your home yourself before restoring the electricity. Example 1

[0018] The retrofit earthquake isolator of the present invention will be described with reference to the drawings. Figure 1 is a perspective view of a retrofit earthquake breaker. The dotted lines marked with ' are the switch (5'), cap (1'), string (2'), and weight (3') that are used after an earthquake. The retrofit earthquake breaker is installed after the fact and can simply be attached to an existing breaker, so the old breaker is not wasted. The existing breaker is 50 amperes and is a standard household main switch. It measures 15 cm long, 10 cm wide, and 5 cm deep, with the switch (5) being 2 cm wide and 1 cm high, and the cap (1) is placed on the end of the switch (5).

[0019] The cap (1) is glued to prevent it from coming off easily, and is attached slightly above the base. The reason for this is that if the switch (5) is operated by approximately 2 kilograms, attaching the cap (1) will lengthen the point of action of the switch (5) by approximately 5 centimeters, allowing it to operate with 1 kilogram. Therefore, using a lighter 1 kilogram object will cause less damage if it hits your head than using a heavy 2 kilogram object placed higher than your head. The cap (1) is a 15 mm x 25 mm x 1 meter long plastic piece cut to 8 centimeters, available in the square pipe section of Home Sanitar. If not available, aluminum or other material can also be used. Then, attach a Φ2 string (2) to the tip of the cap (1) and insert it into the switch (5), then fill the gap with gap adhesive. The string (2) should be non-conductive.

[0020] And underneath the existing barrier there are nails (4a) of the support part (4), and these nails (4a) are made of screw nails, there are two nails (4a), the distance between the nails (4a) is 3 cm, and a Φ60 weight (3) is placed and fixed so that it does not move. Furthermore, the angle at which the nails (4a) are attached is set so that the handle is lowered 2 to 10 degrees and the nails (4a) stop on the heads of the nails (4a).

[0021] The sinker (3) is a 50 gram float purchased from a fishing tackle shop, but because it wasn't heavy enough, I filled it with clay to make it about 1 kilogram. Also, because it was originally a float, it has a bright red or yellow color. Alternatively, when fishing in the dark at night, fluorescent paint is used, so you can also use a float painted with fluorescent paint.

[0022] When the weight (3) is removed from the support (4), make sure that the switch (5') is turned off, then set it on the stand (4). If it is not heavy enough, replace it with one that contains lead. In other words, mix lead into the clay and stuff it into the float to make the weight (3).

[0023] The support part (4) uses screw nails (4a), 90 mm long and driven in 30 mm. To prevent the weight (3) from rolling, the nails (4a) are spaced 40 mm apart, and the weight (3) is fixed by dropping down about 3 mm.

[0024] The spacing between the nails (4a) is important; if the spacing is too small, the alarm will trip at an intensity of about 3, causing the weight (3') to fall and cutting off the power. If the spacing is too large, the alarm will not trip even at an intensity of 5, and if the power does not go out even when an electric heater falls over, it could start a fire. Also, electric heaters have safety devices on the bottom, but embers can get closer during an earthquake, so it is best to turn on the circuit breaker yourself and restore power after the owner of the house has confirmed that it is safe.

[0025] Figure 2 shows all the components of this invention. On the left is a cap (1), to which a string (2) is tied, the end of which is connected to a weight (3). The end of the cap (1) is filled with gap adhesive. On top of that are two nails (4a), and this alone makes up a retrofit earthquake isolator. Example 2

[0026] Figure 3 shows the side of a retrofit earthquake breaker and a cross-section of the angle of a partial support part (4). The dotted line shows the switch (5'), cap (1'), string (2'), and weight (3') where the weight (3) has fallen from the support part (4). The existing breaker is 50 amperes and is a standard household base switch. Its dimensions are 15 cm long, 10 cm wide, and 5 cm deep, and the switch (5) is 2 cm wide and 1 cm high. The cap (1) is placed on the end of the switch (5).

[0027] The cap (1) is attached with adhesive so that it does not come off easily, and the cap (1) is attached to a slightly raised base. The reason for this is that if the switch (5) is activated by approximately 2 kilograms, attaching the cap (1) lengthens the point of action of the switch (5) by approximately 5 centimeters, so that it will now be activated by 1 kilogram. Then, a Φ2 string (2) is attached to the cap (1) and connected to the weight (3). The string (2) should be non-conductive.

[0028] The support part (4) is made of an angle, and the top surface of the angle has a side length of 6 cm and a Φ40 hole (4b) in the center, on which a Φ60 weight (3) is placed to prevent it from moving. The surface that comes into contact with the wall (10) has a Φ6 hole for fastening with a screw nail, and two nails are fastened into the hole.

[0029] The sinker (3) is a float purchased from a fishing tackle shop, but because it is not heavy enough, it is filled with clay to make it about 1 kilogram. Also, because it was originally a float, it is a bright red or yellow color. Alternatively, when fishing in dark places at night, fluorescent paint is used, so you can also use a float painted with fluorescent paint.

[0030] When the weight (3) is removed from the support (4), make sure that the switch (5') is turned off, then place it back on the support (4) and set it in place. If the weight is not enough, replace it with one that contains lead. In other words, mix lead into the clay and stuff it into the float to make the weight (3).

[0031] The support part (4) is made of a plastic angle, cut to a length of 60 mm, and has a Φ40 hole (4b) on the top surface. This hole (4b) was drilled to prevent the weight (3) from rolling, and it fixes the weight (3) by dropping it about 3 mm below.

[0032] The size of the hole (4b) is important; if the diameter of the hole (4b) is small, it will activate at a seismic intensity of about 3, cutting off the power. If the hole (4b) is too wide, it will not activate even at a seismic intensity of 5, and if the power is not cut off even when an electric heater or similar device falls over, it may cause a fire. Electric heaters have a safety device attached to the bottom, but embers can get closer during an earthquake, so it is still best to turn on the circuit breaker yourself after the owner of the house has confirmed that it is safe. Example 3

[0033] An example of use will be explained below. The retrofit earthquake isolator is usually installed in a high position that is difficult to reach at the entrance. Behind the retrofit earthquake isolator is a 20 amp switch that distributes power to each room. The main retrofit earthquake isolator is installed on the wall (6), and the nails (4a) and angles of the support part (4) are attached below the retrofit earthquake isolator.

[0034] The support (4) has nails (4a) spaced about 4 cm apart, or holes (4b) of Φ40 mm for angles, on which the weight (3) is placed. When an earthquake occurs, the weight (3) falls from the support (4), and the weight of the weight (3') causes the switch (5') to move downwards, turning the switch off, as shown by the dotted lines in Figures 1 and 3.

[0035] This retrofit earthquake isolator can confirm whether the main power is off or not by checking whether the weight (3) is on the support part (4) or has fallen off. Also, if the weight (3') of the retrofit earthquake isolator has fallen off and the power is cut off, even if the workers restore the power, the power will not be restored inside the house if the weight (3') of the retrofit earthquake isolator has fallen off. Therefore, even if the workers restore the power, the power will remain out inside the house, so you can feel safe even if you have left your home and are evacuating.

[0036] When the earthquake has subsided and you want to restore electricity, check each room, place the weight (3') on the support (4), lift the switch (5') up to switch (5), and the electricity will turn on, restoring power to its original state. Then, check each room, turning the electricity on one by one, and check for any abnormalities such as electrical leakage. Example 4

[0037] A detailed explanation of symbols and terms is provided. The cap (1) covers the circuit breaker switch (5) and slightly lengthens the length of the switch (5) so that it can be operated with a light force. A string (2) is attached to the end of the cap (1). The cap (1') represents the state in which the switch (5') is off. The string (2') transmits the weight of the weight (3') to the cap (1'), turning the switch (5') to the OFF state. Adhesive is needed to prevent the cap (1') from coming off even when it is facing downwards. The string (2) connects the cap (1) of the switch (5) to the weight (3). Because the string (2) is a part of an electrical appliance, it is not electrically conductive and must be strong enough to support the weight (3) weighing 1 kilogram. The string (2) is resting on the support (4) and is swaying. The string (2') shows the state in which the weight (3') falls during an earthquake, causing the string (2') to become taut. The weight (3') falls from the support (4), causing the string (2') to become taut, pulling the cap (1') and turning off the switch (5'). The sinker (3) is a perfectly round float from a fishing tackle shop. Its shape is good, and its round shape means it is safe and has no sharp edges. It is also easy to see in the dark. It is made of plastic, so it is hollow inside and weighs 50 grams. The hollow is filled with clay, or if it is not heavy enough, with lead. The weight (3') represents the state in which the weight (3') falls from the support (4) due to an earthquake.

[0038] The support part (4) is attached under the barrier using nails (4a) in Figure 1 and a plastic angle in Figure 3. The angle is attached to the wall (6) using two screw nails on the surface that comes into contact with the wall (6). The nails (4a) are parts of the support part (4), and if a screw nail (4a) is used, it is easy to insert and remove the screw nail (4a). The spacing of the nails (4a) is also important, and the spacing is determined according to the seismic intensity of the earthquake. Furthermore, the nails (4a) are driven upward and are secured by the heads of the nails (4a). The hole (4b) is drilled in the center of the upper surface where the angle of the support part (4) is processed, and two holes of Φ6 are drilled in the surface that contacts the wall (10) so that they can be fastened with screws. Switch (5) is a circuit breaker switch (5) that responds within 0.1 seconds in the event of a power leak, but does not respond in the event of an earthquake due to a power outage. Therefore, when the power is restored, it is necessary to check the condition of the house before turning on the circuit breaker switch (5). The switch (5') is where the weight (3') fell from the support (4) during the earthquake. The wall (6) should preferably be made of wood, but if it is made of earth, the breaker should be attached to a wooden board as an aftermarket earthquake breaker. The cord (7) at the top of Figure 1 is the electrical inlet, and the cord (7) below the circuit breaker is connected to the breakers in each room.

[0039] If it is an angle made of steel, it is also called angle iron, and is made by joining two flat bars at a right angle. The width and length of the angle are 6 cm, and there is a Φ40 hole (4b) in it, and on the other side there are two Φ6 nail holes for attaching it to the wall (6). [Industrial Applicability]

[0040] In addition to electricity, this retrofit earthquake isolator can also be installed in grocery stores such as supermarkets that have bookshelves and bottles lined up on shelves. When an earthquake occurs, the weight (3) falls and the curtain attached to the weight (3') comes down to prevent the books and bottles from falling, but considering the damage and its effectiveness, it is not necessary to go that far. [Explanation of symbols]

[0041] 1 Cap 2 String 3 Sinker 4 Support part 4a Nail 4b Hole 5 Switch 6 Wall 7 Cord 9 Switch 9a Clip 9b Chain 9c Weight 9d L Plate

Claims

[Claim 1] The retrofit earthquake isolator is composed of a cap (1), a string (2), a weight (3), and a support part (4). The cap (1) is placed over the existing circuit breaker switch (5), The string (2) connects the cap (1) and the weight (3), The support part (4) supports the weight (3) from below and is attached to the lower wall (6) of the existing crossing gate. The retrofit earthquake isolator is characterized in that the weight (3) is placed on the support part (4).

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