JPH07269647A - Absorber of lateral vibration and minute vibration for office automation apparatus - Google Patents

Abstract

PURPOSE:To protect the eyes of an operator and to eliminate difficulties in an operation by supporting spherical members, which have rigidity, resiliency and minute vibration absorbing power and maintain a rotating function even when a heavy article is mounted thereon, so as to be omnidirectionally movable and rotatable on the concaved spherical surfaces of spherical member receivers and providing vibration absorbing layers in the bottom parts of the spherical member receivers. CONSTITUTION:Vibration absorbing means are formed with spherical members 1, spherical member receivers 2 and vibration absorbing layers 4 and interposed between the support part 5 of a rack and a vibration causing member 6 such as a printer. The spherical member 1 has rigidity and resiliency, maintains a rotating function even when a heavy article is mounted thereon and is made of polyethylene or the like so as to have a minute vibration absorbing power. The spherical member receiver 2 has a concaved spherical surface 3 with a diameter larger than that of the spherical member 1, so that the spherical member 1 can be smoothly and omnidirectionally rotated and moved on the concaved spherical surface 3. The vibration absorbing layer 4 uses a butyl rubber or the like. This vibration absorbing layer 4 may be preferably mounted on the bottom part of the spherical member receiver 2 and interposed between the rack support part 5 and the spherical member so as to absorb the vibration of about 20 to 150Hz. Accordingly, a lateral vibration or minute vibration due to the vibration causing member is not applied to machines.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention causes a phenomenon in which a character on the CRT is shaken by a vibration-causing body such as a dot printer to cause an afterimage on the characters on the CRT to appear double in an operator's eyes. It is an obstacle to eye health and work. It is used as a tool to remove the obstacle.

[0002]

2. Description of the Related Art As a vibration absorber, a washer type and a roll type which absorbs rolling from one direction have been developed. However, no effective tool has been developed that is easy to install and absorbs rolling from all directions and at the same time absorbs fine vibrations.

[0003]

The problem to be solved by the present invention is the development of a tool for preventing rolling and fine vibration of OA equipment. The shock that occurs when the printer head of a dot printer comes to the end of the printer and stops it gives a horizontal shake to the cathode-ray tube of the display device installed in the same rack, and also the roll of the printer roll when changing lines. The motion gives a roll in the front-back direction. Further, the printing vibration causes a minute vibration. These horizontal vibrations and minute vibrations cause the characters and images displayed on the cathode-ray tube to sway, and the characters and images are duplicated to create a state that is visible to the operator. It is to eliminate this phenomenon, protect the eye health of the operator, and remove work obstacles.

[0004]

[Means for Solving the Problem] Having rigidity and elasticity,
Rotating function is not lost even when a heavy object is placed on it, and four spherical bodies that absorb a small amount of fine vibration and four spherical body receivers that have a concave spherical surface that smoothly rotate the spherical body in all directions, part 4 An absorption layer made of a material that efficiently absorbs minute vibrations is attached to the bottom of each of the two sphere receivers to create a structure combining these three functions. This structure has a function of horizontally contacting and supporting a vibration-causing body that causes rolling and microvibration, completely absorbing lateral roll from all directions such as left, right, front, and rear, and absorbing microvibration. The shape of the sphere receiver is a concave spherical surface having a diameter larger than that of the sphere so that the sphere can be naturally stabilized at the center point of the sphere receiver and can be rotationally moved to the rolling width. The concave spherical surface of the sphere receiver is hard and smooth, and the sphere exhibits a function of smoothly rotating and absorbing lateral vibration without receiving resistance. A vibration absorbing material that efficiently absorbs minute vibrations was attached to the bottom of the spherical body to form a minute vibration absorbing layer.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the drawings. FIG. 1 is a front view showing a usage state of the present invention. Reference numeral 1 is a sphere for absorbing vibration. The vibration absorbing sphere 1 is installed together with the sphere receiver 2 having a fine vibration absorbing layer at the bottom, in contact with the four corners of the vibration source 6 (printer in this case) and horizontally fixing them with an adhesive or the like. To do. The sphere receiver 2 is a concave spherical surface 3 having a diameter larger than that of the sphere 1. The sphere moves in all directions such as front, rear, left and right on the concave spherical surface 3 of the sphere receiver 2 in response to the roll, and plays a role of not transmitting the roll to the support portion of the rack frame 5. The sphere 1 is a material that has rigidity and elasticity, does not lose its rotating function even when a heavy object is put on it, and absorbs a small amount of vibration (eg polyethylene, PVC, nylon, etc.)
Is formed by. While in use, the sphere 1 is compressed by vibration, but is immediately restored to a spherical shape and kept in a rotatable state. Also, it plays a role of transmitting a small amount of fine vibration that cannot be absorbed to the vibration absorbing layer 4 at the bottom while absorbing a small amount of fine vibration. 7 is a cathode ray tube. The function of combining the sphere 1, the sphere receiver 2, and the fine vibration absorbing layer 4 prevents the rolling and fine vibration transmitted to the cathode ray tube 7 through the rack. Therefore, there will be no obstacle or seasickness in which an image and characters are double-folded in the eyes of the operator. FIG. 2 is a cross-sectional view of the lateral vibration damping device. 2 is a ball support. Sphere receiver 2
Comprises a concave spherical surface 3 having a larger diameter than the spherical body 1. The reason why the concave spherical surface 3 has a diameter larger than that on the sphere is that the rolling width is absorbed by the rotation distance of the sphere 1, so that space is secured and the sphere 1 is capable of rolling on all sides in all directions. Is to move. The concave spherical surface 3 is hard and smooth, and is formed in a state in which the rotation of the spherical body is smooth. Reference numeral 4 is a fine vibration absorption layer. In order to efficiently absorb the minute vibration, a vibration absorbing material capable of efficiently absorbing the vibration is attached to the bottom portion of the spherical body support 2. As a vibration absorber, resin hapla gel (manufactured by Hamamatsu Platec Co., Ltd.) is suitable. Haplagel is a material that has the ability to absorb vibration over a wide range, and it was especially difficult to absorb it.
It also absorbs vibrations in the range of Hz to 150 Hz. Other materials include butyl rubber (made by Tokai Rubber Industry Co., Ltd.) and Hytrel (made by Toray DuPont Co., Ltd.) that are shaped to absorb vibration.
Etc. are used. When the sphere 1 cannot be used by directly contacting the vibration-causing body 6, the vibration-causing body 6 is placed on a plate-shaped rigid plate capable of withstanding its weight and installed on the sphere 1 for use. FIG. 3 shows the sphere receiver 2 as viewed from above. As an embodiment, a sphere receiver 2 and a sphere 1
There is a method of using sandwiches in a sandwich form. In this case, in order to integrate the upper and lower sphere receivers 2 with the sphere 1 being sandwiched, strings are passed from the four corners of the sphere receiver 2 up and down so that the spheres can be kept movable.

[0006]

EFFECTS OF THE INVENTION Since it completely absorbs lateral vibrations from all directions such as left, right, front and rear, and also absorbs minute vibrations, the CRTs installed in the same rack due to lateral vibrations and minute vibrations caused by the vibration-causing body such as a dot printer. It does not give lateral vibration or minute vibration to devices such as. The phenomenon that the screen on the CRT looks double due to the shaking can be eliminated. It is effective in preventing the operator's seasickness and eye fatigue, and eliminating work obstacles. Also, in the case of a swing type in which the cathode ray tube part moves vertically and horizontally, the cathode ray tube part may move with time due to lateral vibration or fine vibration and may deviate from the fixed position, but this is also prevented. Easy setting when used.

[Brief description of drawings]

[Figure 1] Front view of usage

[Figure 2] Sectional view

FIG. 3 Top view

[Explanation of symbols]

 1, sphere 2, sphere receiver 3, concave spherical surface 4, vibration absorbing layer 5, rack support 6, vibration-causing body (printer) 7, cathode ray tube

Claims (1)

[Claims] 1. A tool for absorbing lateral vibrations and minute vibrations, which is a sphere having rigidity and elasticity, having a property of absorbing a small amount of minute vibrations without losing a rotating function even when a heavy object is placed thereon.
A sphere receiver that has a concave spherical surface that stabilizes the sphere at the center point and allows smooth rotational movement in all directions. An absorption layer made of a material that efficiently absorbs minute vibrations at the bottom of the sphere receiver. A method and structure that uses multiple combinations of the above three functions to absorb rolling and minute vibrations.