A jump suicide prevention device includes a pair of link parts disposed to face each other in a longitudinal direction of the bridge railing, a roller part including rotation parts on opposite sides thereof in the longitudinal direction to be rotatably coupled between the link parts, leg parts respectively coupled to lower ends of the link parts by fastening members, and resilient members installed between end portions of the link part and the leg part with being interposed therebetween to control vertical movements of the link part. As a jump suicide prevention device capable of preventing a suicide jumper from jumping over the upper portion of the bridge railing, the device may prevent incidents of jump suicide from bridge railings due to the configuration of the roller part which rotates while vertically pivoting according to the weight of the suicide jumper.

An animal repelling device is disclosed that may include a first mounting bracket and a second mounting bracket, each of which includes an upper section and a lower section. The upper section may include a vertical tab, a notch formed in the vertical tab, and ribs coupled to opposing sides of the vertical tab. The lower section may include a foot coupled to a sidewall, the sidewall comprising a curved inner surface configured to mateably couple with a fence. A roller may be disposed between, be rotatably coupled to, and extend axially between, the first mounting bracket and the second mounting bracket, the roller comprising an aligner that biases the roller back to an initial at rest position. An attachment clip may be releasably coupled to the notch of the vertical tab.

The present invention relates to a suicide preventing fence, and, according to an embodiment of the present invention, the suicide preventing fence comprises: a plurality of pole parts provided standing upright from the ground surface at predetermined intervals; a plurality of linking parts which are formed in the shape of pipes and horizontally link the spaces between the pole parts; rotating bodies which are formed with an internally hollow abacus bead shape and are provided on the outer circumferential surfaces of the linking parts; bearings which are provided on the outer circumferential surfaces of the linking parts, positioned in the centers on the insides of the rotating bodies; and rotating bolts which are provided on the outer circumferential surfaces of the linking parts and are inserted in through-passing regions on both side surfaces of the rotating bodies so as to rotate together with the rotating bodies. Consequently, the invention makes it possible to prevent suicide since the rotating bodies are provided on the fence and cannot be easily grasped by anyone attempting to pass over same.

The present disclosure relates to a falling and death leap defense rotating cylinder system, including a supporter; a rotator that is rotatably installed in the supporter, and that inhibits a death leap of a death leap attempter by rotating when grasped by the death leap attempter; and a spiked unit that forms a cutting edge, and that is detachably installed in any one or more of the supporter and the rotator. According to the present disclosure, by the spiked unit detachably installed in the supporter or the rotator, a falling and death leap of a death leap attempter may be inhibited more effectively.

Provided is a fence which can prevent a person from clambering over the fence while ensuring sufficient ventilation. The fence includes: a plurality of posts; a pair of plate members extending in a horizontal direction and spaced away from each other in a vertical direction; and a blocking member arranged in the space between the plate members for keeping a foot of a person from entering the space between the plate members to prevent the person from clambering over the fence, wherein a lower end of the blocking member is spaced upward from the plate member at a lower position, and defines a lower gap against an upper surface of the plate member at the lower position, the lower gap having such a dimension as to keep a tip of the foot of the person from entering the lower gap.

An animal repelling device may include a first mounting bracket and a second mounting bracket, each of which includes an upper section and a lower section. The upper section may include a vertical tab, a notch formed in the vertical tab, and ribs coupled to opposing sides of the vertical tab. The lower section may include a foot coupled to a sidewall, the sidewall comprising a curved inner surface configured to mateably couple with a fence. A roller may be disposed between, be rotatably coupled to, and extend axially between, the first mounting bracket and the second mounting bracket, the roller comprising an aligner that biases the roller back to an initial at rest position. An attachment clip may be releasably coupled to the notch of the vertical tab.

Provided is a fence which can prevent a person from clambering over the fence while ensuring sufficient ventilation. The fence includes: a plurality of posts; a pair of plate members extending in a horizontal direction and spaced away from each other in a vertical direction; and a blocking member arranged in the space between the plate members for keeping a foot of a person from entering the space between the plate members to prevent the person from clambering over the fence, wherein a lower end of the blocking member is spaced upward from the plate member at a lower position, and defines a lower gap against an upper surface of the plate member at the lower position, the lower gap having such a dimension as to keep a tip of the foot of the person from entering the lower gap.

A suicide preventing fence including: a plurality of pole parts provided standing upright from the ground surface at predetermined intervals, and a plurality of linking parts which are formed in the shape of pipes and horizontally link the spaces between the pole parts. The fence further includes rotating bodies which are formed with an internally hollow abacus bead shape and are provided on the outer circumferential surfaces of the linking parts, and bearings which are provided on the outer circumferential surfaces of the linking parts, positioned in the centers on the insides of the rotating bodies. The fence further includes rotating bolts which are provided on the outer circumferential surfaces of the linking parts and are inserted in through passing regions on both side surfaces of the rotating bodies so as to rotate together with the rotating bodies.

A multi-layered security system having an attack side, the security system comprising a plurality of barriers arranged in a spaced apart relationship with respect to each other, wherein each pair of barriers are located opposite to each other to define another barrier comprising a passage located between the pair of barriers located opposite to each other. The system can additionally comprise security defences such as anti-climb mesh, spike barriers or rollers. The system further comprises a link bar to join together adjacent panels and create barriers. The link bar comprises a means for joining together adjacent panels on both ends and maintaining the panels in a spaced apart relationship. The link bar can also comprise a means for maintaining the panel in an erected condition by securing it to the ground.

A doorway and passage barrier having a plurality of freely rotating members engaged upon a mounting member positioned upon a top edge of a frame of a child or pet barrier. The rotating members positioned adjacent the top edge of the frame form a bi-rotational shield preventing stationary contact with the top edge of the frame, thereby preventing a child or pet from using the top edge of the frame as a hand grip or foot positioner to climb over the barrier.