Abstract: A vibration isolating apparatus comprises an upper bed which is placed with an object thereon, a lower bed which directly receives a vibration caused by an earthquake, a support mechanism for supporting the upper bed so that the upper bed is relatively displaceable with respect to the lower bed in a horizontal direction with a small friction, a plurality of guide members separated from each other and provided on the upper and lower beds, a wire member provided around the guide members in a form of a loop, and a spring mechanism for absorbing a tension in the wire member depending on a deformation of a shape of the loop formed by the wire member due to a displacement of the lower bed with respect to the upper bed caused by the earthquake.

Abstract: A vibration isolating apparatus comprises an upper bed which is placed with an object thereon, a lower bed which directly receives a vibration caused by an earthquake, a support mechanism for supporting the upper bed so that the upper bed is relatively displaceable with respect to the lower bed in a horizontal direction with a small friction, a plurality of guide members separated from each other and provided on the upper and lower beds, a wire member provided around the guide members in a form of a loop, and a spring mechanism for absorbing a tension in the wire member depending on a deformation of a shape of the loop formed by the wire member due to a displacement of the lower bed with respect to the upper bed caused by the earthquake.

Abstract: The combination of a cylindrical casing, a rod member axially reciprocable in the casing, a rotary member fitted in the casing and rotatable therein in relation with axial displacement of the rod member, an inertia member rotatably fitted in the casing opposingly to the rotary member, and a rotation control member interposed between the rotary and inertia members and adapted to rotate the inertia member with the rotary member in rotation at a low speed and to move the inertia member axially away from the rotary member in rotation at a high speed to abut the inertia member against a wall portion of the casing to restrict the rotation of the rotary member. An intermediate brake is provided between the rotary and inertia members to apply a force resistive to relative rotational displacement of the rotary and inertia members.