JP6358498B2 - Drifting outflow prevention device - Google Patents

Description

  The present invention relates to a drifting outflow prevention device.

  2. Description of the Related Art Conventionally, there is a chain gate device that opens and closes a gate at an entrance / exit of a parking lot or the like by raising and lowering a chain spanned between columns (see Patent Document 1).

  Such a chain gate device usually has an opening width of about 3 m and a height of about 1 m, and is opened and closed by a remote control operation.

  By the way, when a large tsunami push wave comes along with an earthquake, there may be a situation in which a floating object such as a container flows out to the land side and collides with a private house or the like at a seaside port facility. In addition, drifting objects such as containers may flow out into the sea and become missing during a pulling wave.

  Therefore, as shown in FIG. 6, for example, support members (poles) 32 having a height of about 15 m are installed at intervals of about 15 m in the central separation band 31 of the road 30 substantially parallel to the sea side and the land side. Further, a net-like fixed fence 35 in which the rope 33 is stretched horizontally in the upper and lower multi-stage (four stages in this example) between the adjacent support members 32 and the ropes 33 are connected by the vertical metal fitting 34 is provided. There is something.

  With such a net-like fixed fence 35, drifting objects such as containers flow out from the sea side to the land side through the road 30 when the tsunami is pushed, and containers and the like that flow out to the land side when pulling Drifting objects can be prevented from flowing from the land side to the sea.

  As a similar device, a breakwater fence with a drifting object capturing function has been proposed, but it is simply a fixed breakwater fence (see Patent Document 2).

JP 2002-250018 A JP2013-119698A

  However, since the median strip 31 requires a passage (opening portion having an opening width of about 20 m) 36 that serves as an entrance / exit for a large vehicle such as a trailer to pass through on a daily basis, The fence 35 and a fixed break fence cannot be provided.

  Therefore, drifting objects such as containers flow out to the land side from the sea side via the passage 36 when the tsunami is pushed, and drifting objects such as containers that flow out to the land side pass through the passage 36 from the land side when pulling. There was a problem that it went out to the sea and became unknown.

  In addition, it cannot be considered that a chain gate device as in the background art is installed in the passage 36 to prevent the drifting material from flowing out by the chain. However, when a tsunami or the like strikes, a power failure can be considered first, so that it is impossible to perform a closing operation by a remote control operation that requires electric power.

  The present invention has been made to solve the above-mentioned problems, and while there is no obstacle to passage of the passage at all times, drifting that can prevent drifting material from flowing out of the passage when a tsunami strikes can be prevented without power. An object of the present invention is to provide a device for preventing the outflow of goods.

  In order to solve the above-mentioned problems, the present invention is an apparatus for preventing drifting objects from flowing out of a passage due to a tsunami or the like. A pair of support members are provided upright at the left and right positions of the passage. It is supported by a lifting rope along the pair of support members so that it can be raised and lowered, and when lowered, it is stored in a fully contracted state in a groove formed on the passage surface to fully open the passage, and when raised, A net-like lifting fence is provided between the pair of strut members so that the passage can be fully closed by being fully extended. A weight member is provided that is connected to the elevating rope and raises the elevating fence from the lowered position to the raised position via the elevating rope as it is lowered by its own weight. A locking member that locks the weight member at the lowered position of the lifting fence is provided. A float that floats when the water level rises due to the tsunami or the like and releases the locking member is provided.

  According to the present invention, since the lifting fence is normally stored in a fully contracted state in the groove of the passage, there is no problem in pedestrian walking, vehicle running, and the like.

  On the other hand, when the water level in the passage rises due to a tsunami or the like (including storm surges) and the float rises, the weight member descends by its own weight by automatically releasing the locking by the locking member, and the lifting rope The lifting fence is automatically raised to the rising position via As a result, the lifting fence spreads in a fully extended state between the pair of support members and fully closes the passage. Therefore, by capturing the drifting material that has been washed away by a tsunami or the like, the drifting material is removed from the passage. It is possible to prevent outflow to the outside without power. In particular, in electric or manual operation, it takes a considerable amount of time to raise the lifting fence. However, since the lifting fence is lifted by lowering the weight of the weight member, the lifting fence is lifted to the rising position almost instantaneously.

  In addition, since the lifting fence is net-like, it is less susceptible to the influence of water flow and water pressure such as tsunami, and only drifting objects can be reliably captured.

  Furthermore, when the float rises due to a rise in the water level due to a tsunami or the like, the locking by the locking member is released, and the weight member is lowered by its own weight, so that the lifting fence is raised to the rising position. Therefore, the lifting fence can be automatically raised without power without requiring an electric motor or the like that cannot be activated at the time of a power failure.

  The lifting fence includes a fence rope extending in the left-right direction at regular intervals in the vertical direction, and a fence chain extending in the vertical direction at regular intervals in the left-right direction and maintaining the vertical spacing of the fence rope. And can be configured.

  According to this structure, since the raising / lowering fence is comprised in the net shape with the rope for fences and the chain for fences, weight reduction is possible even if it is a shape of height 15m and width 20m in a full extension state, for example.

Support metal fittings that enter the internal space of the pair of column members are respectively attached to both ends of the fence rope, and chain chains for both ends that connect the upper and lower support metal fittings are installed in the internal space of the pair of column members. provided, the lifting rope to the inner space of the pair of strut members are arranged, each lifting rope, respectively connected at the top of each support bracket, said end chains before Symbol each support bracket The connecting portion may be provided with a chain cup capable of storing the connected chain for both ends.

  According to this configuration, when the lifting fence is lowered, the both-end chains that connect the support fittings that have entered the internal space of the pair of support members are housed in the chain cups, so that the support fittings are neatly aligned in the vertical direction. be able to. As a result, when the lifting fence is lifted, there is no possibility that the support bracket gets entangled with the chain for both ends, and the lifting operation by the non-power of the lifting fence is smooth and reliable.

  The weight member may be provided in one internal space of the pair of support members, and each lifting rope may be connected to the weight member.

  According to this structure, each raising / lowering rope of the internal space of a pair of support | pillar member is each connected with one weight member of one internal space of a pair of support | pillar member. As a result, when the weight of one weight member is lowered, both end portions of the lifting fence can be synchronized and smoothly lifted in parallel via the lifting ropes.

  The locking member and the float are arranged on the column member side where the weight member is provided, the float is stored in a float chamber, and the float is configured to be height adjustable. it can.

  According to this configuration, it is possible to adjust the locking release timing by the locking member by adjusting the height of the float. Moreover, if the float is stored in the float chamber and water is poured into the float chamber, the unlocking test by the locking member can be easily performed. Furthermore, the float can be protected by a float chamber.

  The groove formed on the passage surface is normally provided with a lid body that closes the groove, and the lid body has the groove formed when the upper end of the lifting fence is in contact with the guide portion of the lid body. It can be configured to open.

  According to this configuration, since the groove is normally closed by the lid, dust and sand do not enter the groove. Further, when the lifting fence is raised, the upper end of the lifting fence comes into contact with the guide portion so that the lid automatically opens, so that it does not become an obstacle when the lifting fence is raised.

  According to the present invention, it is possible to prevent the drifting material from flowing out of the passage without any power while the passage of the passage is not hindered at all times while the tsunami hits.

It is the outflow prevention apparatus of the drifting object which concerns on this invention, (a) is a top view, (b) is a front view at the time of a passage closing. It is a front view at the time of the channel | path opening of the outflow prevention apparatus of the drifting object of FIG. (A) (b) (c) is a side view of the operating state of a float, a locking member, and a weight member. (A) is a side view of a chain cup, (b) is a side view of a movable lid. (A) is a layout view of an underground lifting rope, (b) is a layout diagram of an aerial lifting rope, and (c) is a layout diagram of double-sided weight members. It is a perspective view of the fixed fence of background art.

  Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. Note that parts having the same configuration and operation as those of the background art are denoted by the same reference numerals and detailed description thereof is omitted.

  1A and 1B show a drifting outflow prevention device, in which FIG. 1A is a plan view and FIG. 1B is a front view when a passage is closed. FIG. 2 is a front view when the passage of the drifting outflow prevention device of FIG. 1 is opened.

  For example, as in the background art of FIG. 6, a net-like fixed fence 35 is provided between the support members 32 of the median strip 31 of the road 30 between the sea side of the port facility and the land side where private houses exist. Suppose that it is provided.

  The central separation zone 31 is provided with a passage 36 serving as an entrance for a large vehicle such as a trailer to pass on a daily basis, and the opening width of the passage 36 is about 20 m.

  A pair of strut members 1L and 1R having substantially the same height as the strut member 32 of the central separation band 31 stands at the left and right positions in the deep groove 36a excavated over the entire width of the passage 36 (see FIG. 4A). It is installed. Each of the support members 1L and 1R has a rectangular tube shape (may be a cylindrical shape) in which an internal space 2 is formed. In addition, a shallow groove 36b is excavated so as to bypass the pillar members 1L and 1R in series with the deep groove 36a of the passage 36.

  Between the pair of support members 1L and 1R, a net-like lifting fence 5 composed of a fence rope 3 and a fence chain 4 is disposed.

  The fence rope 3 extends in the left-right direction at a constant interval (for example, 5 at 1 m intervals) in the vertical direction, and the fence chain 4 extends vertically at a constant interval (for example, 3 at 2 m intervals). Extends in the direction. The intersection of the fence rope 3 and the fence chain 4 is connected, and the fence chain 4 holds the vertical distance of the fence rope 3.

  In the lift fence 5 of this numerical example, the width of the lift fence 5 (equivalent to the opening width of the passage 36 between the pair of support members 1L, 1R) is about 8 m, and the height of the lift fence 5 (the pair of support pillars 1L, 1R). The height of the members 1L and 1R is approximately 4 m). However, in implementation, the opening width of the passage 36 may require about 20 m, and the height of the pair of support members 1L and 1R may require about 15 m. The width and height of the lifting fence 5 are not limited to such numerical examples.

  Support metal fittings 6 that enter the internal space 2 from the slits 1a on the inner surface side of the support members 1L and 1R are attached to both ends of the fence rope 3, respectively.

  Elevating ropes 7L, 7R are respectively arranged in the internal space 2 of the column members 1L, 1R, and one ends of the elevating ropes 7L, 7R are connected to the uppermost support bracket 6, respectively.

Each support bracket 6 vertically is connected by both ends chains 8, the connecting portions at both ends for the chain 8 of the support bracket 6, as shown in FIG. 4 (a), the housing at both ends chains 8 connected Each possible chain cup 9 is provided.

  Further, a rising position restricting chain 11 is connected between the lower metal fitting 10 of the internal space 2 of each support member 1L, 1R and the lowermost support metal fitting 6, and the lower metal fitting 10 is connected to the raised metal restricting chain. A chain cup 9 capable of storing 11 is provided.

  Upper pulleys 13L and 13R are respectively provided above the internal space 2 of the column members 1L and 1R, and the lifting ropes 7L and 7R are hung around the upper pulleys 13L and 13R and extended downward. ing.

  The left lifting rope 7L is hung around a movable pulley 15 of a weight member 14 disposed in the internal space 2 of the left column member 1L and is U-turned upward, and the other end is the left column. It is connected to the upper metal fitting 16 of the internal space 2 of the member 1L.

  The right lifting rope 7R is hung on the pulley 17R disposed in the vicinity of the deep groove 36a in the inner space 2 of the right column member 1R, and then hung on the right pulley 18R in the shallow groove 36b. The inside of the groove 36b extends in the direction of the left column member 1L. Then, it is hung on the left pulley 18L in the shallow groove 36b and hung on the pulley 17L arranged in the vicinity of the deep groove 36a in the inner space 2 of the left column member 1R. Next, after being hung around a pulley 19 arranged beside the upper pulley 13L, the other end is connected to the left lifting rope 7L. FIG. 5A illustrates an example in which the other end of the right lifting rope 7 </ b> R is directly connected to the weight member 14.

  Accordingly, as shown in FIG. 1, when the weight member 14 is lowered by its own weight (see arrow c), the right and left lifting ropes 7L and 7R are simultaneously pulled up by the weight member 14. Thereby, the raising / lowering fence 5 raises straight, spreads in a fully extended state between a pair of support | pillar members 1L and 1R, and comes to fully close the channel | path 36 now.

  On the other hand, as shown in FIG. 2, when the weight member 14 is locked at the lowered position of the lifting fence 5 with a locking member 20 (described later) (see arrow d), the left and right lifting ropes 7L and 7R are simultaneously pulled down. It is done. As a result, the lifting fence 5 descends straight, and is stored in a deep groove 36a between the pair of support members 1L and 1R in a fully contracted (folded) state, so that the passage 36 is fully opened.

  As shown in FIG. 4B, the shallow groove 36 b of the passage 36 is normally closed with the fixed lid 21 so that the passage of the passage 36 is not hindered.

  Further, the deep groove 36a of the passage 36 is normally closed with a movable lid (lid body) 22 so that the passage of the passage 36 is not hindered when the lifting fence 5 is stored in the deep groove 36a. ing. The movable lid 22 is connected to the passage surface so as to be able to swing up and down by a hinge shaft 22 a, and the upper end (the uppermost fence rope 3) of the elevating fence 5 contacts the arcuate guide portion 22 b of the movable lid 22. Swings upward while being lifted. And the deep groove | channel 36a will be opened automatically like a dashed-two dotted line.

  A locking member (hook) 20 that locks the weight member 14 at the lowered position of the lifting fence 5 is provided in the inner space 2 of the left column member 1L so as to be swingable left and right by a pin 20a.

  As shown in FIG. 3, a float 24 that floats when the water level rises due to a tsunami or the like and releases the locking member 20 is disposed outside the left column member 1 </ b> L.

  The float 24 is housed in a float chamber (box) 25 attached to the outer surface of the left column member 1L so that its height can be adjusted by a stay 27 so as to be movable up and down, and stopped by a lower limit stopper 25a. A water outflow / inlet hole (not shown) is formed in the lower portion of the float chamber 25.

  An L-shaped link 26 is connected to the outside of the left column member 1L, and a locking member 20 is connected to one end of the L-shaped link 26 by a link 20b. Further, the nut 24b of the center screw shaft 24a of the float 24 is brought into contact with the other end of the forked portion of the L-shaped link 26 from below.

  As shown in FIG. 3A, the weight member 14 is normally locked by the locking member 20 at the lowered position of the lifting fence 5.

  Then, as shown in FIG. 3B, when the tsunami strikes and reaches a predetermined tsunami water level WL, the float 24 rises (see arrow a). When the float 24 floats, the locking member 20 is swung in the unlocking direction via the nut 24b of the central screw shaft 24a, the L-shaped link 26, and the link 20b (see arrow b). Thereby, the lock | rock of the weight member 14 is cancelled | released and the weight member 14 comes to descend | fall with dead weight (refer arrow c).

  The weight member 14 lowered by its own weight is pulled up to the lowered position of the lifting fence 5 by a chain block or the like (not shown) as shown in FIG. 3C (see arrow d). Thereby, the locking member 20 is swung to the left by the weight member 14, and only the L-shaped link 26 and the link 20b are operated, so that the locking member 20 can be automatically locked again.

  In the case of the drifting outflow prevention device as described above, the lifting fence 5 is normally stored in a fully contracted state in the deep groove 36a of the passage 36, so that it can be used for walking of pedestrians and running of vehicles. There will be no hindrance.

  Then, when the water level of the road 30 and the passage 36 rises due to a tsunami or the like (including storm surges) and reaches a predetermined tsunami water level WL, the float 24 rises. As a result, the locking member 20 swings in the locking release direction via the nut 24b, the L-shaped link 26, and the link 20b of the central screw shaft 24a.

  At this time, the lock of the weight member 14 is automatically released, so that the weight member 14 is lowered by its own weight, and the lifting fence 5 is automatically raised to the raised position via the lifting ropes 7L and 7R. It becomes like this.

  Thereby, since the raising / lowering fence 5 spreads in a fully extended state between the pair of column members 1L and 1R and fully closes the passage 36, by capturing the drifting material that has been washed away by a tsunami or the like, It is possible to prevent the drifting material from flowing out of the passage 36 to the outside without any power. In particular, in electric or manual operation, the lifting operation of the lifting fence 5 takes a considerable amount of time. However, since the lifting fence 5 is lifted by the weight of the weight member 14 being lowered, the lifting fence 5 is lifted to the rising position almost instantaneously. It becomes like this.

  Moreover, since the raising / lowering fence 5 is net shape, it is hard to receive the influence of water currents and water pressures, such as a tsunami, and it can capture only a drifting object reliably.

  Further, when the float 24 floats as the water level rises due to a tsunami or the like, the locking by the locking member 20 is released, and the weight member 14 is lowered by its own weight, so that the lifting fence 5 is raised to the raised position. Therefore, the lifting fence 5 can be automatically raised without power without requiring an electric motor or the like that cannot be activated at the time of a power failure. Note that the locking member 20 can be manually unlocked. In this case, the lifting fence 5 can be automatically raised before a tsunami or the like.

  Moreover, since the raising / lowering fence 5 is comprised by the fence rope 3 and the fence chain 4 in the shape of a net, for example, it can be reduced in weight even if it has a height of 15 m and a width of 20 m in the fully extended state.

  Further, when the elevating fence 5 is lowered, the both-end chains 8 that connect the support fittings 6 that have entered the internal space 2 of the pair of support members 1L and 1R are respectively stored in the chain cups 9 [FIG. 4 (a). The support fitting 6 can be arranged in an orderly manner in the vertical direction. As a result, when the lifting fence 5 is raised, there is no possibility that the support bracket 6 gets entangled with the chain 8 for both ends, and the lifting and lowering operation without power of the lifting fence 5 is smooth and reliable.

  Further, each lifting rope 7L, 7R in the internal space 2 of the pair of support members 1L, 1R is one weight member in the internal space 2 of one of the pair of support members 1L, 1R (in this example, the support member 1L). 14 respectively. As a result, when the weight of one weight member 14 is lowered, both end portions of the lifting fence 5 can be synchronized and smoothly lifted in parallel via the lifting ropes 7L and 7R.

  Further, the height of the float chamber 25 can be adjusted by the stay 27 on the outer surface of the support member 1L, and the height can be finely adjusted by screwing the nut 24b of the float 24. Thereby, since the timing when the float 24 contacts the L-shaped link 26, that is, the height of the float 24 can be adjusted, the locking release timing by the locking member 20 can be adjusted. Moreover, if the float 24 is stored in the float chamber 25 and water is poured into the float chamber 25, the lock release test by the lock member 20 can be easily performed. Further, the float 24 can be protected by the float chamber 25.

  Further, since the deep groove 36a is always closed by the movable lid 22, dust and sand do not enter the groove 36a. Further, when the lifting fence 5 is raised, the upper end of the lifting fence 5 comes into contact with the guide portion 22b, so that the movable lid 22 is automatically opened.

  In the above embodiment, as shown in FIG. 5A, the right lifting rope 7R is guided through the shallow groove 36b of the passage 36 in the direction of the left lifting rope 7L (underground type). On the other hand, as shown in FIG. 5 (b), it can be guided in the direction of the left lifting rope 7L through the pair of support members 1L and 1R (in the air).

  In the above embodiment, the lifting ropes 7L and 7R are connected to the single weight member 14, respectively. However, as shown in FIG. 5C, the lifting ropes 7L and 7R are connected to the weight members 14 respectively. Can be connected separately (both sides).

  In the above-described embodiment, the passage 36 is the passage 36 of the central separation band 31 of the road 30. In short, it may be a passage (entrance and the like) between the pair of support members, and is limited to the passage 36 of the central separation band 31. is not.

1L, 1R Prop member 2 Internal space 3 Fence rope 4 Fence chain 5 Lifting fence 6 Lifting bracket 7L, 7R Lifting rope 8 Chain for both ends 9 Chain cup 14 Weight member 20 Locking member 22 Movable lid (lid)
22b Guide part 24 Float 25 Float chamber 36 Passage 36a Deep groove WL Tsunami water level

Claims (6)

A device that prevents drifting material from flowing out of the passage due to a tsunami,
A pair of strut members erected at the left and right positions of the passage;
It is supported by a lifting rope along the pair of support members so that it can be raised and lowered, and when lowered, it is stored in a fully contracted state in a groove formed on the passage surface to fully open the passage, and when raised, A net-like lifting fence that spreads in a fully extended state between a pair of support members and can fully close the passage,
A weight member connected to the lifting rope and lifting the lifting fence from the lowered position to the raised position via the lifting rope as it descends with its own weight;
A locking member that locks the weight member at the lowered position of the lifting fence;
An apparatus for preventing drifting outflow, comprising a float that floats when the water level rises due to the tsunami or the like and releases the locking member.   The lifting fence includes a fence rope extending in the left-right direction at regular intervals in the vertical direction, and a fence chain extending in the vertical direction at regular intervals in the left-right direction and maintaining the vertical spacing of the fence rope. The drifting outflow prevention device according to claim 1, wherein: Support metal fittings that enter the internal space of the pair of support members are respectively attached to both ends of the fence rope,
The inner space of the pair of support members is provided with a chain for both ends for connecting the upper and lower support brackets,
The elevating ropes are respectively disposed in the internal spaces of the pair of support members, and the elevating ropes are connected to the uppermost support brackets, respectively .
The consolidated portion of said end chains before Symbol each support bracket, the outflow preventing drifting of claim 2, characterized in that linked chain cup capable of accommodating the ends chains are provided apparatus. The weight member is provided in one internal space of the pair of support members,
The drifting outflow prevention device according to any one of claims 1 to 3, wherein each of the lifting ropes is connected to the weight member.   The locking member and the float are arranged on a column member side where the weight member is provided, the float is stored in a float chamber, and the height of the float is adjustable. The outflow prevention apparatus of the drifting object as described in any one of Claims 1-4.   The groove formed on the passage surface is normally provided with a lid body that closes the groove, and the lid body has the groove formed when the upper end of the lifting fence is in contact with the guide portion of the lid body. The drifting outflow prevention device according to any one of claims 1 to 5, wherein the device is opened.

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