JP2010285747A - Intrusion preventing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely prevent the intrusion of animals into a building while improving efficiency in work associated with a vehicle entering/leaving the building. <P>SOLUTION: This intrusion preventing apparatus includes a wall 10 installed on a boundary line 102a forming an intrusion preventing area 102 in front of a doorway 101 of a grain warehouse 100, and is constituted to prevent the intrusion of animals into the grain warehouse 100 by the wall 10. The intrusion preventing apparatus includes a fixed wall 3 constituting a part of the wall 10 and fixedly installed in a section excluding a vehicle in-and-out section 10a on the boundary line 102a in an inclined attitude of inclining at a predetermined angle to the ground surface 200 so that the upper end faces the outside of the intrusion preventing area 102, and a gate 4 installed in the vehicle in-and/out section 10a. The gate 4 includes a movable wall 13 constituted to be switchable between an inclined attitude and a parallel attitude parallel with the ground surface 200 to constitute the other part excluding a part in the wall 10, and a switching mechanism for switching the movable wall 13 into the inclined attitude and parallel attitude according to switching control. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an intrusion prevention device that prevents an animal from entering a building.

  As an intrusion prevention device for preventing invasion of animals, for example, an animal intrusion protection fence disclosed in Japanese Patent Application Laid-Open No. 2007-43999 is known. This animal intrusion protection fence is configured to include a plurality of metal wall materials arranged side by side so as to surround a region (intrusion prevention region) for preventing the invasion of animals. In this case, the wall surface material is configured such that the lower end thereof is curved toward the front surface side (outside of the intrusion prevention region) and the upper portion thereof is inclined toward the front surface side. Moreover, this wall surface material has the bottom face part contact | abutted to the ground fixed to the ground with the anchor pile (fastening).

JP 2007-43999 A (page 4, FIG. 1-2)

  However, the above animal intrusion protection fence has the following problems. That is, in this type of intrusion prevention apparatus including the animal intrusion protection fence described above, the wall surface material is fixed to the ground by an anchor pile or the like as described above. In this case, when using this type of intrusion prevention device to prevent an animal (for example, a small animal such as a mouse) from entering the grain warehouse, for example, it surrounds a predetermined area before the entrance of the grain warehouse. Fix the wall material side by side. On the other hand, in such a grain warehouse, it is necessary to move a transportation vehicle into and out of the grain warehouse from the entrance to take in and out the luggage. For this reason, in such a usage pattern, a part of the wall surface material surrounding the predetermined area before the doorway can be moved without being fixed to the ground, and the movable part of the wall surface material is moved when the transport vehicle enters and exits. The structure to move is adopted. However, in this configuration, when the transportation vehicle frequently enters and exits, it is necessary to frequently perform a complicated moving operation of moving the movable part of the wall surface material. Therefore, this type of intrusion prevention device including the conventional animal intrusion protection fence has a problem that the efficiency of the transport work is reduced due to the complicated movement work. In addition, there is a possibility that the return of the movable part to the original position may occur, and there is a problem that an animal may invade from the part.

  The present invention has been made in view of such problems, and provides an intrusion prevention device that can reliably prevent the invasion of animals into a building while improving the efficiency of operations involving the entry and exit of vehicles into and from the building. The main purpose is to provide.

  In order to achieve the above object, the intrusion prevention apparatus according to claim 1, further comprising a wall portion installed on a boundary line that forms a predetermined area before the entrance of the building, and prevents the intrusion of the animal into the building. An intrusion prevention device that is prevented by a wall portion, except for a predetermined section for entering and exiting the vehicle at the boundary line in an inclined posture that is inclined by a predetermined angle with respect to the installation surface so that an upper end portion faces the outside of the predetermined area A fixed wall portion that is fixedly installed on the wall and forms a part of the wall portion, and a gate portion that is installed in the predetermined section, and the gate portion is parallel to the inclined posture and the installation surface. A movable wall portion that is configured to be switchable between postures and constitutes the other portion of the wall portion except the part, and a switching mechanism that switches the movable wall portion to the inclined posture and the parallel posture according to switching control. When It is provided.

  Further, the intrusion prevention device according to claim 2 is the intrusion prevention device according to claim 1, wherein a detection unit that detects the vehicle when the vehicle exists within a predetermined distance from the gate portion; In the non-detection state of the vehicle by the detection unit, the movable wall portion is maintained in the inclined posture with respect to the switching mechanism, and the movable wall portion with respect to the switching mechanism in the detection state of the vehicle by the detection unit. And a control unit that performs control for switching to the parallel posture as the switching control.

  The intrusion prevention device according to claim 3 is the intrusion prevention device according to claim 1 or 2, wherein the gate portion includes a base portion and struts erected on both ends of the base portion, and the movable portion is movable. The wall portion is configured to be able to switch between the inclined posture and the parallel posture by rotating around a lower end portion supported by the base portion, and the switching mechanism is attached to the support column and the movable wall portion is The air cylinder is configured to rotate, and the control unit performs the switching control by controlling the supply of air to the air cylinder.

  According to the intrusion prevention device according to claim 1, the movable wall portion configured to be able to switch between an inclined posture inclined by a predetermined angle with respect to the installation surface and a parallel posture parallel to the installation surface, and switching control. Accordingly, by providing a gate part having a switching mechanism for switching the movable wall part between a parallel posture and an inclined posture, the movable wall part can be brought into a parallel posture without performing a complicated work of moving a part of the wall part. The vehicle can be moved in and out of a predetermined area (that is, in a building) by passing through the gate portion in the switched state. For this reason, according to this intrusion prevention device, even when the vehicle frequently enters and exits, the work efficiency can be sufficiently improved since the complicated work of moving a part of the wall portion is unnecessary. In addition, since a complicated operation of returning a part of the moved wall portion after the vehicle enters and exits is unnecessary, it is possible to reliably prevent an animal from entering the building due to forgetting to return.

  According to the intrusion prevention device of the second aspect, the detection unit detects the vehicle when the vehicle exists within a predetermined distance from the gate unit, and the switching mechanism in the non-detection state of the vehicle by the detection unit. And a control unit that controls the switching mechanism to switch the movable wall portion to a parallel posture with respect to the switching mechanism in the vehicle detection state by the detection portion. The movable wall portion can be reliably maintained in the parallel posture from the time before entering the gate portion until it passes through the gate portion. For this reason, when the vehicle enters the gate portion, the movable wall portion is not switched to the parallel posture and the vehicle collides with the movable wall portion, or the movable wall portion returns to the inclined posture before the vehicle passes through the gate portion. Thus, it is possible to reliably prevent the movable wall portion and the vehicle from being damaged due to the movable wall portion colliding with the vehicle. In addition, since the control unit performs the switching control described above, the movable wall portion can be quickly switched from the parallel posture to the inclined posture when the vehicle passes through the gate portion. Thus, it is possible to reliably prevent the invasion of the animal due to being maintained in the parallel posture.

  According to the intrusion prevention device of the third aspect, the movable wall portion is configured to be rotatable around the lower end portion supported by the base portion, and is attached to the pillars erected at both ends of the base portion. The air cylinder that rotates the movable wall part constitutes a switching mechanism, and the control part performs switching control by controlling the supply of air to the air cylinder, so that the movable wall part is inclined while having a simple configuration. And it can switch to a parallel posture reliably. For this reason, the intrusion prevention device can be configured at a low cost, and the occurrence of a failure can be suppressed to a low level because the configuration is simple. In addition, since the pillars are erected at both ends of the base body part, the pillars can function as marks when the vehicle enters the gate part, so that the vehicle can enter and exit smoothly.

1 is a plan view showing a configuration of an intrusion prevention device 1. FIG. 1 is a perspective view showing a configuration of an intrusion prevention device 1. FIG. 3 is a cross-sectional view of a fixed wall portion 3. FIG. 3 is a perspective view showing a configuration of a gate unit 4. FIG. 3 is a plan view showing a configuration of a gate unit 4. FIG. FIG. 5 is a first explanatory diagram illustrating the operation of the gate unit 4. FIG. 6 is a second explanatory diagram illustrating the operation of the gate unit 4. FIG. 6 is a third explanatory diagram illustrating the operation of the gate unit 4. FIG. 10 is a fourth explanatory diagram illustrating the operation of the gate unit 4.

  Embodiments of an intrusion prevention device according to the present invention will be described below with reference to the accompanying drawings.

  First, the configuration of the intrusion prevention device 1 will be described. The intrusion prevention device 1 shown in FIG. 1 is also referred to as a “detection unit 5” when the fixed wall unit 3, the gate unit 4, the first detection unit 5a, and the second detection unit 5b (hereinafter, the detection units 5a and 5b are not distinguished from each other). ), And the control unit 6, it is configured to prevent an animal (particularly, a small animal such as a mouse) from entering the grain warehouse 100 as an example of a building. In this case, the wall portion 10 constituted by the fixed wall portion 3 and the movable wall portion 13 (see FIG. 4 and FIG. 4) of the gate portion 4 is in front of the doorway 101 of the grain warehouse 100 (the door attached to the doorway 101). 104 in front of the boundary line 102a that forms a predetermined area (intrusion prevention area 102), and the wall 10 allows an animal to enter the intrusion prevention area 102 (that is, from the doorway 101 into the grain warehouse 100). Invasion of animals) is prevented.

  As shown in FIGS. 1 and 2, the fixed wall portion 3 is arranged in a section excluding a predetermined section for entering and exiting the vehicle (the section 10a for entering and exiting the vehicle shown in both drawings) on the boundary line 102a. 10 constitutes a part. As an example, the fixed wall portion 3 is configured by connecting a plurality of wall members 3a formed by bending a belt-like plate body. Further, as shown in FIG. 3, the fixed wall portion 3 (wall member 3 a) is inserted into the bolt hole 31 a formed in the bent lower end portion 31 and tightened by inserting an anchor bolt 400 into the ground 200 ( It is fixedly installed on the installation surface. In this case, the fixed wall 3 has an upper end 32 facing the outside of the intrusion prevention region 102 in the installed state (a state fixed to the ground 200) by a predetermined angle θ (60 ° as an example) with respect to the ground 200. The bending angle of the lower end 31 is adjusted so as to be inclined. Moreover, the fixed wall part 3 is comprised so that the height from the lower end part 31 to the upper end part 32 in an installation state may be about 50 cm. The posture in which the fixed wall portion 3 and the movable wall portion 13 of the gate portion 4 are inclined with respect to the ground 200 at the predetermined angle θ is also referred to as “an inclined posture” hereinafter.

  As shown in FIGS. 4 and 5, the gate portion 4 includes a base portion 11, four support columns 12, a movable wall portion 13, and a switching mechanism 14. As shown in FIG. It is installed in the service section 10a. As shown in FIG. 6, the gate portion 4 is fixed to the ground 200 by inserting an anchor bolt 400 into a bolt hole 11 a formed in the base portion 11 and tightening the anchor bolt 400. In this case, as shown in FIG. 5, the base portion 11 is formed in a rectangular frame shape, for example, and the support columns 12 are erected in the vicinity of the four corners of the base portion 11. As shown in FIG. 4, the movable wall portion 13 is formed of a belt-like plate body and constitutes another portion (a portion other than the fixed wall portion 3) in the wall portion 10 as described above. Further, the movable wall portion 13 is disposed so as to be rotatable about a lower end portion 41 supported by the base body portion 11 via a hinge not shown in the figure, and is rotated by the switching mechanism 14, whereby FIG. As shown in FIG. 8, the posture can be switched between the tilted posture described above and a posture parallel to the ground 200 (hereinafter also referred to as “parallel posture”). Moreover, the movable wall part 13 is comprised so that the height from the lower end part 41 to the upper end part 42 in an inclination posture may be about 50 cm.

  As shown in FIGS. 4 and 5, the switching mechanism 14 includes two air cylinders 21 (for example, a single-acting air cylinder) that are rotatably attached to the two columns 12. As shown in FIGS. 5 and 6, the tip of the rod 21 a of the air cylinder 21 is connected to the movable wall 13 through a connecting portion 13 a attached to the upper end 42 of the movable wall 13. . Further, the air cylinder 21 is operated by supplying and stopping supply of air controlled by the control unit 6 to expand and contract the rod 21a, thereby rotating the movable wall portion 13. In this case, as shown in FIG. 6, the air cylinder 21 maintains the movable wall portion 13 in an inclined posture in a state where the rod 21a is contracted, and in a state where the rod 21a is extended as shown in FIG. The movable wall portion 13 is maintained in a parallel posture (that is, the movable wall portion 13 is switched to either an inclined posture or a parallel posture).

  The first detection unit 5 a and the second detection unit 5 b are configured by photoelectric sensors each including a light emitting unit 51 and a light receiving unit 52. In this case, as shown in FIG. 1, the first detection unit 5 a is disposed at a position separated by a predetermined distance from the gate unit 4 outside the intrusion prevention region 102, and the vehicle 300 is positioned at the position. When the vehicle is running, the vehicle 300 is detected and a detection signal is output. Further, as shown in the figure, the second detection unit 5b is disposed at a position separated by a predetermined distance from the gate unit 4 inside the intrusion prevention region 102, and the vehicle 300 is positioned at the disposed position. The vehicle 300 is detected and a detection signal is output. That is, when the vehicle 300 exists within a predetermined distance from the gate unit 4 (detection region 201 shown in the figure), the vehicle 300 is detected by one or both of the detection units 5.

  The control unit 6 supplies and stops supply of air to the air cylinder 21 on the basis of detection signals output from the first detection unit 5a and the second detection unit 5b, thereby operating the air cylinder 21. Switching control for switching the movable wall portion 13 between the inclined posture and the parallel posture is performed on the (switching mechanism 14). Specifically, the control unit 6 inclines the movable wall portion 13 with respect to the switching mechanism 14 in a state where detection signals are not output from both the detection units 5 (a state in which the vehicle 300 is not detected by the detection unit 5). The movable wall portion 13 is switched to the parallel posture with respect to the switching mechanism 14 in a state in which a detection signal is output from at least one of the detection portions 5 (a detection state of the vehicle 300 by the detection portion 5). Moreover, the control part 6 is attached to the outer wall 103 of the grain warehouse 100, for example, as shown in FIG.

  Next, a method for installing the intrusion prevention device 1 will be described with reference to the drawings.

  As shown in FIG. 1, first, an intrusion prevention area 102 that should prevent invasion of animals is set on the ground 200 in front of the entrance 101 of the grain warehouse 100, and then on a boundary line 102 a that forms the intrusion prevention area 102. The wall members 3a are arranged. In this case, the wall member 3a is arranged in a section excluding the section 10a for entering and exiting the vehicle 300. Then, each wall member 3a is connected using the connection member 3b. Next, the fixed wall portion 3 is fixed to the ground 200 by inserting the anchor bolt 400 into the bolt hole 31 a formed in the lower end portion 31 of the fixed wall portion 3 and tightening. Further, the end of the fixed wall 3 on the grain warehouse 100 side is fixed to the outer wall 103 of the grain warehouse 100. Thereby, the fixed wall part 3 is installed in the section except the section 10a for vehicle entrance / exit in the boundary line 102a. In this case, as shown in FIG. 3, the fixed wall portion 3 is inclined such that the upper end portion 32 faces the outside of the intrusion prevention region 102 and is inclined by a predetermined angle θ (60 ° in this example) with respect to the ground surface 200. Is maintained.

  Then, as shown in FIG. 1, the gate part 4 is installed in the above-mentioned vehicle exit / entry section 10a. Specifically, as shown in FIG. 7, the gate portion 4 is placed on the ground surface 200 of the vehicle entry / exit section 10a so that the fixed wall portion 3 and the movable wall portion 13 are continuous, and then FIG. As shown in FIG. 2, the base body 11 is fixed to the ground 200 by inserting the anchor bolts 400 into the bolt holes 11a formed in the base body 11 and tightening them. Thereby, the gate part 4 is installed. In this case, as shown in the figure, in the initial state, the rod 21a of the air cylinder 21 in the gate portion 4 is contracted, so that the movable wall portion 13 of the gate portion 4 is maintained in an inclined posture. .

  Subsequently, each detection unit is disposed. In this case, the first detection unit 5a is disposed at a position away from the gate unit 4 outside the intrusion prevention region 102 by a predetermined distance (for example, about 1 m). In addition, the second detection unit 5b is disposed at a position separated from the gate unit 4 by a predetermined distance (for example, about 1 m) inside the intrusion prevention region 102. Next, an air supply tube is connected to the air cylinder 21 of the gate unit 4 and wiring between the control unit 6 and each detection unit 5 is performed. Thus, the installation of the intrusion prevention device 1 is completed.

  Next, a method of using the intrusion prevention device 1 and the operation of each component in the intrusion prevention device 1 at that time will be described with reference to the drawings.

  In this intrusion prevention device 1, as described above, the fixed wall portion 3 and the movable wall portion 13 of the gate portion 4 constituting the wall portion 10 are maintained in an inclined posture (see FIG. 7). Therefore, for example, even if a small animal such as a mouse tries to enter the grain warehouse 100 through the intrusion prevention area 102, it cannot get over the fixed wall portion 3 and the movable wall portion 13. Intrusion into the interior is blocked, and as a result, entry of small animals into the grain warehouse 100 is reliably prevented.

  On the other hand, in the intrusion prevention device 1, the control unit 6 performs switching control in the operating state. In this switching control, the control unit 6 supplies air to the air cylinder 21 based on the detection signals output from the first detection unit 5a and the second detection unit 5b, and stops supplying the air to the switching mechanism 14. Thus, the movable wall portion 13 is switched between the inclined posture and the parallel posture. Specifically, for example, in order for a vehicle 300 such as a truck or a forklift to enter the grain warehouse 100, it approaches the gate portion 4 from the outside of the intrusion prevention area 102, and as shown by a solid line in FIG. Is positioned within the detection region 201, the first detection unit 5a outputs a detection signal.

  In response to this, the control unit 6 controls a solenoid valve (not shown) to supply air to the air cylinder 21. At this time, as shown in FIG. 8, the rod 21a of the air cylinder 21 extends, and the upper end portion 42 of the movable wall portion 13 connected to the distal end portion of the rod 21a via the connecting portion 13a becomes the base portion 11. It is pressed toward the side (the ground 200 side). As a result, as shown in FIG. 9 and FIG. 9, the movable wall portion 13 is rotated and switched from the inclined posture to the parallel posture, and the vehicle 300 passes over the movable wall portion 13 (gate portion). It is possible to enter the intrusion prevention area 102 (through 4).

  Subsequently, as indicated by a broken line in FIG. 1, when the vehicle 300 enters the intrusion prevention area 102 and its rear part goes out of the detection area 201, output of detection signals from both the detection parts 5 stops. In response to this, the control unit 6 controls the electromagnetic valve to stop the supply of air to the air cylinder 21. At this time, the rod 21a of the air cylinder 21 is contracted, and the upper end portion 42 of the movable wall portion 13 connected to the distal end portion of the rod 21a is drawn toward the air cylinder 21 side. Thereby, the movable wall part 13 is rotated, and the parallel posture is switched to the inclined posture as shown in FIG.

  Here, in this intrusion prevention device 1, the control unit 6 performs the switching control described above, so that the movable wall portion is from the time point before the vehicle 300 enters the gate portion 4 until it passes through the gate portion 4. 13 is maintained in a parallel posture. For this reason, when the vehicle 300 enters the gate portion 4, the movable wall portion 13 is not switched to the parallel posture and the vehicle 300 collides with the movable wall portion 13 or moves before the vehicle 300 passes the gate portion 4. It is possible to reliably prevent the movable wall portion 13 and the vehicle 300 from being damaged due to the wall portion 13 returning to the inclined posture and the movable wall portion 13 colliding with the vehicle 300. In addition, the control unit 6 performs the above-described switching control, so that the movable wall portion 13 is quickly switched from the parallel posture to the inclined posture when the vehicle 300 passes through the gate portion 4. For this reason, it is possible to reliably prevent the invasion of animals due to the movable wall portion 13 being maintained in a parallel posture for a long time.

  Next, when the vehicle 300 exiting from the grain warehouse 100 approaches the gate unit 4 from the inside of the intrusion prevention region 102 and is positioned in the detection region 201, the second detection unit 5b outputs a detection signal, and the control unit 6 However, by supplying air to the air cylinder 21, the movable wall portion 13 is switched from the inclined posture to the parallel posture. As a result, the vehicle 300 can pass through the gate portion 4 and get out of the intrusion prevention area 102. Subsequently, when the vehicle 300 passes through the gate portion 4 and goes out of the detection region 201, the output of detection signals from both detection portions 5 stops, and the control portion 6 stops supplying air to the air cylinder 21. By doing so, the movable wall portion 13 is switched from the parallel posture to the inclined posture. Hereinafter, the control unit 6 performs switching control to switch the movable wall unit 13 between the inclined posture and the parallel posture as the vehicle 300 enters and exits.

  Here, in this intrusion prevention device 1, the control unit 6 performs the switching control described above, so that the vehicle 300 can be moved to the intrusion prevention region 102 without performing a complicated operation of moving a part of the wall 10 ( In other words, it is possible to enter and exit the grain warehouse 100. For this reason, even when the vehicle 300 frequently enters and exits, it is possible to sufficiently improve the work efficiency because such a moving work is unnecessary.

  As described above, according to the intrusion prevention device 1, the movable wall portion 13 configured to be able to switch between an inclined posture inclined by the predetermined angle θ with respect to the ground 200 and a parallel posture parallel to the ground 200; By including the gate portion 4 having the switching mechanism 14 that switches the movable wall portion 13 between the parallel posture and the inclined posture according to the predetermined switching control, a complicated operation of moving a part of the wall portion 10 is performed. Instead, the vehicle 300 can be moved in and out of the intrusion prevention area 102 (to the grain warehouse 100) by passing through the gate portion 4 in a state where the movable wall portion 13 is switched to the parallel posture. For this reason, according to this intrusion prevention device 1, even when the vehicle 300 frequently enters and exits, the work efficiency is sufficiently improved because the complicated work of moving a part of the wall portion 10 is unnecessary. Can do. In addition, since the complicated work of returning a part of the moved wall portion 10 after the vehicle 300 has entered and exited is unnecessary, it is possible to reliably prevent the animal from entering the grain warehouse 100 due to forgetting to return. Can do.

  In addition, according to the intrusion prevention device 1, the detection unit 5 that detects the vehicle 300 when the vehicle 300 exists in the detection region 201, and the switching mechanism 14 in the non-detection state of the vehicle 300 by the detection unit 5. On the other hand, the control unit 6 includes a control unit 6 that controls the switching mechanism 14 to switch the movable wall unit 13 to a parallel posture in the detection state of the vehicle 300 by the detection unit 5 while maintaining the movable wall unit 13 in an inclined posture. As a result, the movable wall portion 13 can be reliably maintained in the parallel posture from the time before the vehicle 300 enters the gate portion 4 until it passes through the gate portion 4. For this reason, when the vehicle 300 enters the gate portion 4, the movable wall portion 13 is not switched to the parallel posture and the vehicle 300 collides with the movable wall portion 13 or moves before the vehicle 300 passes the gate portion 4. It is possible to reliably prevent the movable wall portion 13 and the vehicle 300 from being damaged by the wall portion 13 returning to the inclined posture and the movable wall portion 13 colliding with the vehicle 300. Further, since the control unit 6 performs the above-described switching control, the movable wall unit 13 can be quickly switched from the parallel posture to the inclined posture when the vehicle 300 passes through the gate unit 4. Can be reliably prevented from entering the animal due to being maintained in a parallel posture for a long time.

  Further, according to the intrusion prevention device 1, the movable wall portion 13 is configured to be rotatable around the lower end portion 41 supported by the base portion 11, and the column 12 is erected on both ends of the base portion 11. The switching mechanism 14 is configured by the air cylinder 21 that is attached and rotates the movable wall portion 13, and the control unit 6 performs switching control by controlling the supply of air to the air cylinder 21, so that the configuration is simple. However, the movable wall portion 13 can be reliably switched between the inclined posture and the parallel posture. For this reason, the intrusion prevention device 1 can be configured at a low cost, and the occurrence of a failure can be suppressed to a low level because the configuration is simple. In addition, since the pillars 12 are erected at both ends of the base body part 11, the pillars 12 can function as marks when the vehicle 300 enters the gate part 4, so that the vehicle 300 can be smoothly entered and exited. Can be made.

  In addition, although the structure example which rotates 13 by the air cylinder 21 was mentioned above, it can replace with the air cylinder 21 and the structure which rotates the movable wall part 13 with a motor can also be employ | adopted. In addition, a manual switch for instructing switching is disposed, for example, in the vicinity of the gate portion 4, and the switching mechanism 14 operates the air cylinder 21 in response to an operation (predetermined switching control) of the manual switch to move the movable wall. A configuration in which the portion 13 is rotated (switched between a parallel posture and an inclined posture) can also be employed.

  Moreover, although it described above about the example which prescribed | regulated the inclination angle of the fixed wall part 3 and the movable wall part 13 in an inclination attitude | position to 60 degrees, an inclination attitude | position can be prescribed | regulated arbitrarily. Further, the fixed wall portion 3 is configured so that the height from the lower end 31 to the upper end 32 in the inclined posture is about 50 cm, and the height from the lower end 41 to the upper end 42 in the inclined posture is about 50 cm. As described above, the movable wall portion 13 is configured as described above. However, the height of the movable wall portion 13 can be arbitrarily defined according to the size of the animal to be prevented from entering.

DESCRIPTION OF SYMBOLS 1 Intrusion prevention apparatus 3 Fixed wall part 4 Gate part 5a 1st detection part 5b 2nd detection part 6 Control part 10 Wall part 10a Section for vehicle entrance / exit 11 Base part 12 Support | pillar 13 Movable wall part 14 Switching mechanism 21 Air cylinder 32 Upper end part DESCRIPTION OF SYMBOLS 100 Grain warehouse 101 Doorway 102 Intrusion prevention area 102a Boundary line 200 Ground 201 Detection area 300 Vehicle

Claims (3)

An intrusion prevention device that includes a wall portion installed on a boundary line that forms a predetermined area before the entrance of a building, and prevents an animal from entering the building by the wall portion,
A part of the wall portion is fixedly installed in a section excluding the predetermined section for entering and exiting the vehicle on the boundary line in an inclined posture inclined at a predetermined angle with respect to the installation surface so that the upper end portion faces the outside of the predetermined area. Comprising a fixed wall portion constituting a gate portion installed in the predetermined section,
The gate portion is configured to be able to switch between the inclined posture and a parallel posture parallel to the installation surface, and a movable wall portion constituting the other part of the wall portion except the part, and for switching control. An intrusion prevention apparatus comprising a switching mechanism that switches the movable wall portion between the inclined posture and the parallel posture in response. A detection unit for detecting the vehicle when the vehicle is present within a predetermined distance from the gate unit;
In the non-detection state of the vehicle by the detection unit, the movable wall portion is maintained in the inclined posture with respect to the switching mechanism, and the movable wall portion with respect to the switching mechanism in the detection state of the vehicle by the detection unit. The intrusion prevention apparatus according to claim 1, further comprising: a control unit configured to perform control for switching to a parallel posture as the switching control. The gate portion includes a base portion and struts erected on both ends of the base portion,
The movable wall portion is configured to be able to switch between the inclined posture and the parallel posture by rotating around a lower end portion supported by the base portion.
The switching mechanism is configured by an air cylinder that is attached to the column and rotates the movable wall portion,
The intrusion prevention device according to claim 1, wherein the control unit performs the switching control by controlling supply of air to the air cylinder.

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