JP2014025578A - Vibration controlling isolator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vibration controlling isolator which is highly responsive even to a small vibration and can exhibit a vibration responding function against a large vibration.SOLUTION: A vibration controlling isolator for use between a floor surface and an upper structure, comprises: a rolling member disposed at an intermediate position between either upper and lower double receiving structures or a plurality of overlaid upper and lower receiving structures. A vibration isolation is caused by rolling of the rolling member against small vibrations of an earthquake, and a pendulum motion is caused by a pendulum motion of an inner receiving portion against large vibrations. The rolling member is subjected to a suppression resistance between the upper receiving structure and the lower receiving structure so that a vibration control machine is constituted to raise a vibration control function.

Description

  The present invention relates to a vibration damping isolator, and more particularly to a vibration damping isolator capable of exhibiting a vibration damping function with good response to a small shaking of an earthquake.

  Various seismic isolation devices have been developed in order to protect structures from earthquake vibrations. For example, as shown in Japanese Patent Application Laid-Open No. 2002-266933, a cone-contained isolation bearing is known. is there.

  JP 2002-266933 A

  However, the ball-contained isolation bearing in the cone has good response to small earthquake shaking, but the device itself has no braking function, so that there is a problem that the shaking is difficult to be settled.

  The present invention has been made as a result of earnest research in order to solve the above-mentioned problems, and has excellent responsiveness to a small shaking of an earthquake and can exhibit a damping function against a large shaking. Is to provide.

A rolling member is interposed in the middle position between the upper and lower double saucer structures or multiple upper and lower saucer structures of the vibration control device installed between the floor and the upper structure. Produces seismic isolation due to rolling of the rolling member, and for large shakes, a pendulum motion occurs due to the inner tray member, resulting in seismic isolation,
The upper receiving plate in which the rolling member is configured to receive a suppression resistance between the upper receiving plate member and the lower receiving plate member to generate a vibration control function, and is formed with a partial spherical concave portion or a partial non-spherical concave portion. A rolling member is inserted between the member and a lower tray member in which a partial spherical concave portion or a partial non-spherical concave portion is formed, and the upper and lower convex portions of the rolling member are respectively a partial spherical convex portion or a partial non-spherical portion. It is formed on a true spherical convex part and is formed asymmetrically, and the material of the rolling member housed between the upper tray member and the lower tray member is made of metal, plastic or rubber. Or a combination thereof, which has a response by rolling of the rolling member to a small shaking of an earthquake, and the rolling member and the upper tray member to a large shaking Non-part between the lower tray members Receiving a suppression resistor spherical recesses, damping isolator, characterized by being configured to produce a damping function.

  According to the vibration isolator of the present invention, the rolling member has responsiveness to a small shaking of the earthquake, and the rolling member has an upper tray member and a lower tray for a large shaking. Since it is configured to receive the suppression resistance of the partial non-spherical concave portion between the members and generate a vibration suppression function, it can have a vibration suppression function continuously even when shifting from a small vibration to a large vibration.

  It is principal part sectional drawing of the vibration isolator which concerns on this invention.   It is a perspective view of the rolling member which shows the 1st Example of the vibration isolator which concerns on this invention.   FIG. 3 is a plan view of FIG. 2.   FIG. 4 is a side view of FIG. 3.   It is sectional drawing of the rolling member which shows the 2nd Example of a vibration isolator.   FIG. 6 is a plan view of FIG. 5.   FIG. 6 is a side view of FIG. 5.   It is sectional drawing of the rolling member which shows the 3rd Example of a vibration isolator.   It is a top view of FIG.   It is a side view of FIG.   It is sectional drawing of the rolling member which shows the 4th Example of a vibration isolator.   It is a top view of FIG.   It is a side view of FIG.

  In the present invention, a rolling member is interposed at an intermediate position between the upper and lower double tray structures of the vibration control device installed between the floor surface and the upper structure. In addition to causing seismic isolation due to rolling of the member, the pendulum movement by the inner saucer member occurs for large shaking, resulting in seismic isolation, and the rolling member is suppressed between the upper and lower saucer members. It is configured to receive resistance and generate a vibration control function, and is an upper receiving plate member having a partially spherical recess or a partially non-spherical recess and a bottom surface having a partially spherical or partially non-spherical recess. A rolling member is inserted between the side tray member, and the upper and lower convex portions of the rolling member are formed as partial spherical convex portions or partial non-spherical convex portions, respectively, and are formed asymmetrically. Between the upper and lower tray members. The material of the rolling member is made of metal, plastic or rubber, or a combination thereof, and is responsive to the rolling of the rolling member for small earthquake shaking. The vibration control device is configured to generate a vibration suppression function by receiving a suppression resistance of a partial non-spherical concave portion between the upper tray member and the lower tray member for large shaking. Provide seismic isolation devices.

  A first embodiment of the vibration damping device of the present invention will be described below with reference to FIGS. A rolling member 20 is interposed at an intermediate position between the upper and lower double trays of the vibration isolation unit 1 installed between the floor 12 and the upper structure 11.

  A lower concave portion saucer member 5 is fixed on the floor surface 12, and an upper concave portion saucer member 4 is fixed to the upper structure 11.

  The lower sliding convex surface portion 7 is in contact with the inner side of the lower concave portion tray member 5, and the upper sliding convex surface portion 6 is in contact with the inner side of the upper concave surface portion tray member 4.

  A cast iron sphere 3 is placed in the center of the ring type rubber 21 formed by the ring type rubber inclined surface 22 and the ring type rubber flat friction portion 23, and the cast iron sphere 3 is formed of a cylindrical body 54 made of a thin plate material such as aluminum. The cylindrical body has an action of suppressing the extreme deformation of the ring-shaped rubber 21 generated when the cast iron sphere 3 rotates.

  The seismic isolation due to the rolling of the rolling member 20 is generated for small shaking of the earthquake, and the upper and lower sliding convex members 6 and 7 are largely slid to generate a vibration damping isolation effect for the large shaking.

  That is, the pendulum motion is generated inside the upper and lower concave portion receiving members 4 and 5, thereby providing seismic isolation, and the rolling member 20 has a suppression resistance between the upper concave portion receiving member 4 and the lower concave portion receiving member 5. It is configured to receive and control vibration.

  A second embodiment of the vibration damping device of the present invention will be described below based on FIGS. First, as in the case of the first embodiment, the lower concave portion saucer member 5 is fixed on the floor surface 12, and the upper concave portion saucer member 4 is fixed to the upper structure 11.

  The lower sliding convex surface portion 7 is in contact with the inner side of the lower concave portion tray member 5, and the upper sliding convex surface portion 6 is in contact with the inner side of the upper concave surface portion tray member 4.

  A cast iron sphere 35 is placed in the center of the ring-type rubber 31 formed by the ring-type rubber ridgeline portion 32 and the ring-type rubber flat friction portion 33, and forms a rolling member 30.

  The upper and lower umbrella-type structures of the ring rubber 31 are connected by an elastic rubber 34, and a cast iron sphere 35 is placed in the center of the ring rubber 31, and the cast iron sphere 35 is a cylinder made of a thin plate material such as aluminum. It exists in the body 36, and the cylindrical body 36 has an action of suppressing the extreme deformation of the ring-type rubber 31 generated when the cast iron sphere 35 rotates.

  The seismic isolation due to the rolling of the rolling member 30 is generated for small shaking of the earthquake, and the upper and lower sliding convex members 6 and 7 are greatly slid to generate a vibration damping isolation effect for the large shaking. And the rolling member 30 is comprised so that the suppression resistance between the upper side concave surface part saucer member 4 and the lower side concave surface part saucer member 5 may receive, and a damping function may be produced.

Based on FIG. 8 thru | or FIG. 10, Example 3 of the vibration isolator of this invention is demonstrated.
First, as in the case of the first embodiment, the lower concave portion saucer member 5 is fixed on the floor surface 12, and the upper concave portion saucer member 4 is fixed to the upper structure 11.

  The lower sliding convex surface portion 7 is in contact with the inner side of the lower concave portion tray member 5, and the upper sliding convex surface portion 6 is in contact with the inner side of the upper concave surface portion tray member 4.

  The upper and lower umbrella-type structures of the rubber member 41 are connected by an elastic rubber 43, and an oilless cast iron plate 42 is molded on the upper and lower tops of the center of the rubber member 41 to form a rolling member 40.

  The seismic isolation due to the rolling of the rolling member 40 is generated for a small earthquake, and the upper and lower sliding convex members 6 and 7 are greatly slid to generate a vibration isolation effect. In addition, the rolling member 40 is configured to receive a suppression resistance between the upper concave portion receiving tray member 4 and the lower concave portion receiving tray member 5 to generate a vibration damping function.

A fourth embodiment of the vibration damping isolator of the present invention will be described with reference to FIGS.
First, as in the case of the first embodiment, the lower concave portion saucer member 5 is fixed on the floor surface 12, and the upper concave portion saucer member 4 is fixed to the upper structure 11.

  The lower sliding convex surface portion 7 is in contact with the inner side of the lower concave portion tray member 5, and the upper sliding convex surface portion 6 is in contact with the inner side of the upper concave surface portion tray member 4.

  The upper and lower umbrella-type structures of the rubber member 51 are connected by a constricted portion 53 made of the same material, and an oilless cast iron plate 52 is molded on the central upper and lower top portions of the metal or plastic member 51 to form a rolling member 50. Yes.

  The seismic isolation due to the rolling of the rolling member 50 is generated for small shaking of the earthquake, and the upper and lower sliding convex members 6 and 7 are greatly slid to produce a vibration damping effect. And the rolling member 50 is comprised so that the suppression resistance between the upper side concave surface part saucer member 4 and the lower side concave surface part saucer member 5 may receive, and a damping function may be produced.

DESCRIPTION OF SYMBOLS 1 Damping isolation unit 11 Superstructure 12 Floor 20 Rolling member 21 Ring type rubber 22 Ring type rubber inclined surface 23 Ring type rubber flat friction part 3 Cast iron ball 4 Upper concave part saucer member 5 Lower concave part saucer member 6 Upper sliding convex portion 7 Lower sliding convex portion 30 Rolling member 31 Ring type metal or plastic 32 Ring type metal or plastic ridge line portion 33 Ring type metal or plastic flat portion 34 Elastic rubber 35 Cast iron sphere 36 Cylindrical body 40 Rolling member 41 Metal or Plastic Member 42 Oiles Cast Iron Plate 43 Elastic Rubber 50 Rolling Member 51 Metal or Plastic Member 52 Oiles Cast Iron Plate 53 Constricted Portion 54 Cylindrical Body

Claims (4)

  A rolling member is interposed in the middle position between the upper and lower double saucer structures or multiple upper and lower saucer structures of the vibration control device installed between the floor and the upper structure. Produces seismic isolation due to rolling of the rolling member, and with respect to large shaking, a pendulum motion occurs due to the inner saucer member, resulting in seismic isolation, and the rolling member is an upper saucer member and a lower saucer member. A vibration isolation device that is designed to generate a vibration control function in response to the suppression resistance between the two.   A rolling member is inserted between the upper tray member in which the partial spherical concave portion or the partial non-spherical concave portion is formed and the lower tray member in which the partial spherical concave portion or the partial non-spherical concave portion is formed. 2. The vibration isolator according to claim 1, wherein the upper and lower convex portions of the member are formed as partial spherical convex portions or partial non-spherical convex portions, respectively, and are formed asymmetrically.   The control member according to claim 1, wherein the material of the rolling member housed between the upper tray member and the lower tray member is made of metal, plastic or rubber, or a combination thereof. Vibration isolation device.   It has responsiveness due to rolling of the rolling member for small earthquake shaking, and the rolling member has a resistance to suppress the partial aspherical recess between the upper and lower tray members for large shaking. The vibration isolator of claim 1, wherein the vibration isolator is configured to receive and control vibration.

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