JP2003172399A - Base isolation stand leg - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To produce a base isolation stand leg installed on an electronic apparatus such as a computer at a low cost, and provide the base isolation stand leg capable of surely exhibiting base isolation effectiveness with respect to an apparatus having the center of gravity on an upper part than a movable part such as a CRT. <P>SOLUTION: The stand leg is provided with a loop for installing a belt for fixing the apparatus and a leg part having an end of a column in a shape of a hemisphere. A stand leg tray is in a shape of a tray which is made by counter-boring a rectangular parallelepiped in a columnar and hemisphere shape. The stand leg is fixed on the apparatus by a two-sided tape or the fixing belt, and a lower end part of the leg part is inserted into the stand leg tray so that the apparatus can be supported. <P>COPYRIGHT: (C)2003,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pedestal attached to an electronic device such as a computer, and more particularly to a pedestal for seismic isolation and seismic isolation. About. 2. Description of the Related Art Conventionally, electronic equipment such as a computer has foots at four corners at the bottom of the electronic equipment. Such a foot has a function to finely adjust the vertical height of each device with respect to the floor surface, so that the level of the device can be accurately adjusted to a horizontal position regardless of the state of the floor surface It can be set to. [0003] However, although the above-mentioned foot can keep the equipment in a horizontal state, the seismic effect is not taken into consideration, and when a strong earthquake occurs, the equipment falls, and the equipment is damaged or broken. There was a fear that it would. [0004] As a measure against earthquake, there is a method of fixing the equipment to the floor, but this method can prevent the equipment from falling down, but since the seismic isolation effect is not considered, the equipment is damaged due to vibration due to shaking. Possibilities arise. Therefore, there is a method of attaching a foot having a seismic isolation structure to a device so as to provide a seismic isolation effect. However, the conventional seismic isolation foot is difficult to design and requires a high manufacturing cost. was there. [0006] Also, even if a seismic isolation is applied to a CRT or the like having a high center of gravity and an operating mechanism, the expected sufficient effect cannot be exerted, and the movable part may be damaged.
This is because when the seismic isolation on the desk is taken into consideration, the target object is calculated as a complete static body. However, since the object is actually a moving body having a movable part, stress concentrates on the movable part and leads to damage. A seismic isolation pedestal according to the present invention is a seismic isolation pedestal in which an upper portion is attached to an electronic device and a lower portion is attached to a floor, and the upper portion fixes the device. A loop for attaching a belt capable of being attached thereto, and a leg having a hemispherical tip at the end of the cylinder, wherein the lower portion has a saucer shape in which a rectangular parallelepiped is seated in a cylinder and a hemisphere, and a lower end of the leg is provided. A part is inserted into the tray to support the device. [0008] Embodiments of the present invention will be described in detail with reference to the drawings. Referring to FIG. 1, a footrest tray 1 of the present invention has a shape of a rectangular parallelepiped seated in a vertical direction in a hemispherical shape having an a and a radius b. Here, a is a dimension that does not cause the equipment to fall or fall due to the acceleration due to the earthquake. A double-sided tape is attached to the back surface of the foot receiving tray 1. Referring also to FIG. 2, the foot 2 has a flat plate 3 and a leg 4 having a cylindrical end formed in a hemisphere. A double-sided tape is attached to the back surface of the flat plate 3 and fixed to the four corners of the device. Further, one side of the flat plate 3 has a loop 5 for attaching a fixing belt described later. The pedestal receiving tray 1 is fixed so as to be aligned with the center of the pedestal 2. The installation is completed by inserting the leg 4 of the foot 2 into the receiving portion of the foot receiving tray 1. Here footrest tray 1, footrest 2
It is desirable that the material is made of metal in consideration of both abrasion resistance. Further, since the smaller the friction between the leg 4 and the receiving portion, the better the operation, the material of the tip of the leg 4 and the receiving portion is desirably made of oil metal or the like. Next, the operation of the present invention will be described. If horizontal acceleration occurs due to the earthquake,
The acceleration directly acts on, but the inertia acts on the foot 2 to try to stay there. As a result, the foot 2 repeats the pendulum movement in the foot tray 1. In this case, the rapid acceleration due to the earthquake does not act on the foot 2, and the resonance point of the vibration which becomes a strong energy is not generated, so that the equipment fixed to the foot 2 can be prevented from being damaged. . In the case of a device such as a CRT having a center of gravity on a movable portion, even a small amount of vibration causes stress to act on the movable portion. There is a risk of breakage and falling. Therefore, as shown in FIG. 3, a fixing belt is attached to the loop 5 of the foot 2,
By fixing the movable part of the equipment, it becomes possible to prevent the equipment having the movable part from being damaged or toppled when an earthquake occurs. As described above, according to the seismic isolation pedestal of the present invention, unlike the conventional seismic isolation pedestal, it can be manufactured with a simple structure, and the manufacturing cost is greatly reduced. be able to. In addition, it is possible to exert a seismic isolation effect on a device having a center of gravity on a movable part such as a CRT.

[Brief description of the drawings] FIG. 1 is a view showing a foot support tray 1; FIG. 2 is a view showing a foot 2; FIG. 3 is a view showing the operation of the seismic isolation foot of the present invention. FIG. 4 is a diagram using a fixed belt. [Explanation of symbols] One foot saucer 2 feet 3 flat plate 4 legs 5 loops

Claims (1)

Claims: 1. A seismic isolation pedestal having an upper portion attached to an electronic device and a lower portion attached to a floor, wherein the upper portion has a loop for attaching a belt capable of fixing the device, and The tip of the cylinder has a hemispherical leg, and the lower part has a saucer shape in which a rectangular parallelepiped sits in a hemispherical shape in a columnar shape. A base-isolated pedestal characterized by being configured to support.