JP2013110967A - Structure for preventing small animal invasion - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent small animal invasion from a lower part of a door for opening and closing a vehicle entrance arranged on an entrance prevention fence for dividing an automobile road ground boundary.SOLUTION: The structure for preventing small animal invasion includes a door that swings around a revolving shaft as the center extending in the vertical direction in the vehicle entrance arranged on the entrance prevention fence for dividing the automobile road ground boundary and opens and closes the vehicle entrance, a sheet body that is made of an elastic material and mounted on the whole length of the lower edge of the door, and an undulation part that is extended on a parallel with the lower edge in a state in which the door closes the vehicle entrance and is placed on the ground in an arrangement to cross the vehicle entrance. The vertical length in a state in which the sheet body is attached to the door is shorter than the interval from the lower edge of the door to the ground, longer than the interval from the lower edge of the door to the ridge line of the undulation part, and the height of the ridge line of the undulation part from the ground is lower than the minimum ground clearance of a vehicle going through the vehicle entrance.

Description

  The present invention relates to a small animal intrusion prevention structure for preventing small animals from entering a road for automobiles.

  The road boundary for automobile roads is usually partitioned by an entry prevention fence to protect facilities and prevent accidents. However, in facilities provided in mountainous areas, small animals inhabiting the surrounding area may infiltrate the site from the clearance of the entry prevention fence. Therefore, measures have been proposed to protect small animals living around roads such as mountainous areas from collision accidents with traveling vehicles.

  For example, Japanese Patent Application Laid-Open No. 2003-82624 discloses a drainage opening and a fitting along the longitudinal direction of a rubber mat material in a gap between a lower portion of an entry prevention fence for partitioning a road boundary for an automobile and the ground. A method for repairing a road entry prevention fence for fixing materials for repair work each having a plurality of openings for insertion is disclosed.

  Japanese Patent Application Laid-Open No. 2009-133185 fixes a synthetic resin net made of an elastic skirt member, at least a part of which is grounded, to the lower end of an entry prevention fence that partitions the road boundary for automobiles. A technique is disclosed.

JP 2003-82624 A JP 2009-133185 A

  Entrance doors for construction vehicles and patrol vehicles are usually provided in access prevention fences, but the gap between the lower edge of the door that opens and closes the entrances and the ground is small animals as well as other parts of the entrance prevention fence. It is necessary to take measures to prevent the intrusion. However, in the conventional method of closing the clearance between the entry prevention fence and the ground, it has been necessary to press or fix the closing member against the ground so that it is not easily separated from the ground. Therefore, it could not be used for doors that move relative to the ground.

  Therefore, the present invention provides a small animal intrusion prevention structure that can prevent small animals from entering from the lower part of the door that opens and closes the vehicle entrance / exit provided in the entrance prevention fence that partitions the road boundary for automobile roads. Objective.

  A small animal intrusion prevention structure according to the present invention includes a door that swings around a rotation axis extending in a vertical direction at a vehicle entrance provided in an entrance prevention fence that partitions a road boundary for an automobile, and opens and closes the vehicle entrance. A seat body formed of an elastic material and attached to the entire length of the lower edge of the door, and an arrangement in which the door extends in parallel with the lower edge in a state where the doorway for the vehicle is closed and intersects the doorway for the vehicle It consists of undulations provided on the ground. The hanging length of the sheet body attached to the door is shorter than the distance from the lower edge of the door to the ground, and longer than the distance from the lower edge of the door to the ridge line of the undulating portion. The height of the ridge line of the undulating portion from the ground is lower than the minimum ground height of the vehicle passing through the vehicle doorway.

  In the present invention, the hanging length in a state where the sheet body is attached to the door of the sheet body refers to a length from the lower edge of the door to the lower end in the vertical direction of the sheet body in a state where the sheet body does not interfere with the undulating portion. Shall. Further, the minimum ground clearance of the vehicle refers to the narrowest distance between the ground and the portion other than the ground contact portion (specifically, tire) of the vehicle.

  The undulating portion is not limited in its shape as long as the ridgeline (the line formed by connecting the highest points) is lower than the lowest ground clearance. For example, the undulating portion stands up from the ground and intersects with the vehicle entrance / exit. Thus, the extending surface may be curved, and the cross-sectional profile may be a circle or an ellipse.

  In the small animal intrusion prevention structure according to the present invention, the length of the sheet body formed of an elastic material when attached to the door is shorter than the distance from the lower edge of the door to the ground, and the undulating portion extends from the lower edge of the door. When the vehicle doorway is closed with a door, the seat body bends and adheres to the undulations to close the gap between the lower edge of the door and the ground, preventing the invasion of small animals. Can do. In addition, since the close contact between the sheet body and the undulating portion is due to the step force of the sheet body, it can be released by moving the sheet body in a bent state while applying force in a direction to return to the normal state. it can. Therefore, the door can be opened. Furthermore, the ridge line of the undulating portion provided on the ground is lower than the minimum ground height of the vehicle passing through the vehicle entrance, so that the undulating portion is the vehicle in the door open state. There is no hindrance to traffic.

  In addition, if the surface that stands up from the ground of the undulating portion and intersects with the vehicle entrance / exit is curved and the cross-sectional contour is a shape that forms a circle or an ellipse arc, the vehicle will pass more smoothly. it can.

It is a front view which shows the entrance / exit for vehicles which employ | adopted the small animal intrusion prevention structure which concerns on this invention. It is a front view which shows the open state of the vehicle entrance / exit. It is an expanded sectional view of a undulation part and a sheet body.

  An embodiment of a small animal intrusion prevention structure according to the present invention will be described with reference to FIGS. A vehicle doorway 1 shown in FIG. 1 is provided in an entry prevention fence 2 that partitions a road boundary for automobiles so that a construction vehicle, a traveling vehicle, and the like enter and exit the motorway site. Small animal invasion prevention structure is adopted. The entry prevention fence 2 partitions the road site for automobiles on the back side of the page. A wire mesh 21 is stretched on a post (not shown) arranged at a predetermined interval, and a gap between the lower edge of the wire mesh 21 and the ground is made of resin. This is a known configuration closed by a net 22. In FIG. 1, the meshes of the wire mesh 21 and the resin mesh 22 are not shown.

  A door 4 is attached to each end of the entry prevention fence 2 located on both sides of the vehicle entrance 1 via a rotating shaft 3 extending in the vertical direction. Each of the doors 4 is slidable around the rotation shaft 3 with respect to the entry prevention fence 2 and closes the vehicle entrance 1 in a state where two doors are arranged. A drop bar 5 that slides in the vertical direction is slidably attached to the lower end of the edge (oscillation end side edge) of the door 4 that is not supported by the rotary shaft 3. In a state where the doorway 1 is closed, the door 4 is fixed by fitting the dropping bar 5 into a hole provided in a later-described undulation portion. Further, a sheet body 6 formed of a synthetic resin net is attached to the lower edge of the door 4 over the entire length of the lower edge so as not to intersect with the drop bar 5. The door 4 has a known configuration in which a wire mesh is stretched on a frame formed by arranging reinforcing bars in a rectangular shape, but the frame and the mesh are not shown in FIG. Further, the mesh of the sheet body 6 is not shown.

  The ground of the vehicle entrance / exit 1 is provided with a pavement material of a predetermined depth and leveled, and the undulating portion extending from one edge of the entry prevention fence 2 to the other edge over the entire width of the vehicle entrance / exit 1. 7 is provided integrally with the paving material leveling surface. In addition, although concrete is employ | adopted as a pavement material, you may use other well-known pavement materials, such as asphalt.

  The undulating portion 7 is arranged to extend in parallel with the lower edge of the door 4 below the door 4 in a state where the door 4 closes the vehicle entrance 1. Also, as shown in FIG. 3, the surface of the undulating portion 7 that stands up from the ground and extends across the vehicle doorway 1 is curved, and the cross section has an elliptical arc shape (kamaboko shape). . A line formed by connecting the top portion 71 (the portion farthest from the ground) in the cross section to the longitudinal direction of the undulating portion 7 (the direction intersecting the vehicle entrance 1) corresponds to the ridgeline of the present invention. The height from is 70 mm. However, the height of the ridgeline from the ground is not limited, and may be set within a range lower than the minimum ground height of the vehicle passing through the vehicle entrance. For example, it may be slightly lower than the minimum ground height (90 mm) obtained by the calculation formula stipulated in “Notification that defines details of safety standards for road transport vehicles” (those that are several millimeters lower).

  The hanging length of the sheet body 6 attached to the door 4, that is, the length from the lower edge of the door 4 to the lower end in the vertical direction in a state where it does not interfere with the undulating portion 7 as indicated by an imaginary line in FIG. L is shorter than the interval G from the lower edge of the door 4 to the ground, and is longer than the interval H from the lower edge of the door 4 to the ridgeline 72 of the undulating portion 7. Therefore, when the vehicle doorway 1 is closed by the door 4, as shown by the solid line in FIG. 3, the sheet body 6 bends and adheres closely to the undulating portion 7, closes the gap between the lower edge of the door 4 and the ground, and intrudes small animals. Can be prevented. Further, since the close contact between the sheet body 6 and the undulating portion 7 is due to the step force of the sheet body 6, the sheet body 6 in the bent state returns to the normal state, that is, in FIG. It can be released by moving it in the forward direction (in the direction of the white arrow in FIG. 3) while applying a force. Further, since the ridgeline 72 of the undulating portion 7 provided on the ground is lower than the minimum ground clearance of the vehicle passing through the vehicle doorway 1 from the ground, the undulating portion 7 is in the open state of the door 4 shown in FIG. There is no hindrance to vehicle traffic.

DESCRIPTION OF SYMBOLS 1 Vehicle entrance / exit 2 Access prevention fence 3 Rotating shaft 4 Door 5 Drop rod 6 Sheet body 7 Unraveling part 21 Wire net 22 Resin net 71 Top

Claims (2)

  A vehicular doorway provided on the entrance barrier for partitioning the road boundary for automobiles swings around a rotation axis extending in the vertical direction, opens and closes the vehicular doorway, and is formed of an elastic material and below the door. A sheet body attached over the entire length of the edge, and a undulating portion provided on the ground in an arrangement that extends in parallel with the lower edge and intersects the vehicle doorway in a state where the door closes the vehicle doorway The hanging length of the sheet body attached to the door is shorter than the distance from the lower edge of the door to the ground, and longer than the distance from the lower edge of the door to the ridge line of the undulating portion. The small animal intrusion prevention structure is characterized in that the height of the ridge line of the undulating portion from the ground is lower than the minimum ground height of the vehicle passing through the vehicle entrance. 2. The small animal intrusion prevention structure according to claim 1, wherein the undulating portion has a curved surface that rises from the ground and intersects the vehicle entrance and exit, and has a circular or elliptical arc in cross section. .

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