JP2008082160A - Rubber for decreasing upper direct load - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rubber for efficiently decreasing a load direct from above. <P>SOLUTION: One or more holders are formed while a margin space is provided between the boundaries of a distance from a construction floor surface to the respective holder and the height of the holder. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a rubber used for a double flooring or the like, and more particularly to a rubber that efficiently reduces vibration transmission due to an upper direct load.

  The rubber used for vibration isolation mainly functions to prevent vibrations transmitted from the upper part from being transmitted to the lower part. However, the shape is such that almost the vibration of the upper part is immediately transmitted to the lower part.

  In Korean Patent Registration No. 538817, a vibration isolating rubber provided at predetermined intervals on a floor surface on which mechanical equipment generating vibration and noise is provided, and an upper surface protruding in a ladder shape, and a ladder of the anti vibration rubber A mount that is inserted in the center of the protruding portion of the shape and includes a support portion that is formed with a tab formed in the lower direction from the center of the upper surface, and is provided so as to be covered by the upper portion of the mount. In the anti-vibration device comprising a cover having a screw hole in the center and an adjustment screw fastened by the screw hole of the cover and having an adjustment groove formed in the upper part, the mount is a lower surface of the anti-vibration rubber A lower flat plate that constitutes the bottom surface of the mount and is provided with a support ring that is attached along an edge of the lower flat plate and supports the anti-vibration rubber. Although a floor vibration high-efficiency prevention device for buildings is disclosed, characterized in that a ladder-shaped hollow portion is provided, not only the structure is complicated, but also the mount that contacts the floor surface to be constructed over a wide area The lower plate reduces the vibration reduction efficiency.

  Japanese Patent Application Laid-Open No. 2005-163506 discloses an anti-vibration rubber for a floor support leg having both a high load resistance and an anti-vibration property for supporting a floor slab by using an anti-vibration rubber. Therefore, by changing the shape of the rhombus cylinder to the same shape, the area of the top surface and the bottom surface is made the same, and the impact vibration applied to the mounting surface is received in a small area, so that the amount of energy transfer is suppressed, and the volume of the anti-vibration rubber is reduced. An anti-vibration rubber is disclosed in which the amount of energy transfer to the lower housing slag is reduced with a smaller area after increasing the rubber volume by increasing the volume of the rubber by making a rhombus cylinder, but with a smaller area. The contact area between the lower part of the anti-vibration rubber and the construction floor is large, and the efficiency of vibration reduction is reduced.

Japanese Patent Application Laid-Open No. 2003-13591 discloses a double floor structure in which a floor board material is mounted using a vibration-proof rubber in contact with a floor base and a support leg having legs provided on the vibration-proof rubber. A vibration rubber is composed of a prone saddle-type joining platen that is in contact with the floor base and a leg insertion portion disposed above the prone saddle-type jointing unit, and is formed in the prone saddle-type joint base and the floor base. At least one air escape hole is provided between the internal space and the external space facing each other, and / or at least one part of the contact portion with the floor base of the face-down type joint board is an air escape cut. Although anti-vibration rubber is disclosed in a double-floor support leg that is provided with a notched groove, it is not sufficient to suppress vibration propagation due to the action of an air spring that occurs when the inner space is sealed by the lower peripheral edge. It is enough.
Korean Patent Registration No. 538817 JP 2005-163506 A JP 2003-13591 A

  The present invention has been made to solve the above-described problems of the prior art, and an object of the present invention is to provide a rubber that can increase the internal impedance by designing a vibration reduction path.

  In order to achieve the above-mentioned object, the present invention has one or more support bases formed in the lower part, and has a blank space formed with the interval between the construction floor and each support base and the height of the support base as a boundary. Features.

  The present invention is characterized in that the transmission of vibration due to the direct load is blocked by forming the center of the rubber bottom side to which the direct load of the rubber is applied in a blank space so that the vibration of the upper part is not transmitted well to the lower part.

  The vibration transmission blocking mechanism of the vibration reducing rubber according to the present invention will be described in detail. First, a bolt is provided in the bolt receiving groove, and an upper load is transmitted to the bolt. The bolt receiving the load transmits the load to the rubber, and the rubber receiving the load transmits the load to the lower part. At this time, the load transmitted to the lower part reduces vibration while causing primary deformation in the blank space of FIG. 3, and reduces secondary vibration in the blank space of FIG.

  The vibration reducing rubber of the present invention preferably has an additional blank space by a claw formed on the upper side from the bottom surface, and the height of the bottom claw is preferably 0.1 to 10 mm. This claw can not only maximize vibration reduction efficiency, but can also handle shear deformation due to direct load.

  The vibration reducing rubber of the present invention comprises a bolt receiving groove and a locking projection formed on the upper portion thereof, a horizontal flow path for adhesive formed on the bottom surface of the bolt receiving groove, and a rubber communicating with the horizontal flow path. An adhesive vertical flow path that penetrates the upper and lower portions of the adhesive, and an adhesive leakage suppressing external channel and an internal channel that are formed outside and inside the adhesive vertical flow path at the lower portion of the rubber, respectively.

  As described above, according to the present invention, by forming a blank space on the bottom surface side of the rubber, the vibration of the upper part is transmitted to the lower part, so that there is a reduction effect of 30% or more. It can be usefully used for double flooring.

  Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a plan view of rubber according to the present invention, FIG. 2 is a bottom view, and FIGS. 3 and 4 are AA ′ and BB ′ sectional views of FIG. 1, respectively.

  The vibration reducing rubber of the present invention is used particularly as a rubber for supporting an upper plate of a double floor system, and a bolt receiving groove 10 and a bolt lock are provided on the upper part so that a bolt for adjusting the height of the double floor can be stored. A protrusion 20 is formed.

  A cross-shaped horizontal flow path 40 for moving the adhesive is formed on the bottom surface of the bolt receiving groove 10, and four vertical flow paths 30 that penetrate the upper and lower portions of the rubber while communicating with the horizontal flow path 40 are formed. Has been.

  An adhesive leakage suppressing external channel 50 and an internal channel 60 are formed outside and inside the vertical flow path at the lower part of the rubber.

  At the time of construction of the double flooring, the bolt for adjusting the height is fitted into the bolt receiving groove 10 of rubber, and the bolt is firmly bonded and fixed using an adhesive. The adhesive is attached to the horizontal flow path 40 via the bolt. After flowing in, it moves downward along the vertical flow path 30 and does not leak to the outside by the external channel 50 and the internal channel 60.

  Four support bases 80 which are located concentrically with the vertical flow path 30 are formed in the lower part of the rubber. A margin space (S) is formed by the support base 80. As shown in FIG. 4, this blank space (S) has a space that is about the interval and the height of each support base 80, and is seen from FIG. When the circle is drawn with the four support bases 80 as the periphery, it corresponds to the inside of the virtual circle.

  As shown in FIG. 3, an additional blank space (S ′) is formed in the center bottom surface of the rubber by a claw 70 extending upward.

  The height of the bottom claw 70 is preferably 0.1 to 10 mm. If the height is too low, the vibration reduction efficiency is lowered, and if it is too high, the deformation occurs too much, which causes a problem in the stability of the entire system.

  Not only can the vibration reduction efficiency be maximized by the bottom claw 70, but also shear deformation due to a direct load can be appropriately handled.

  By virtue of the spaces (S, S ′), the vibration transmission blocking performance of rubber is improved by 30% or more compared to the case where such a shape is not applied.

It is a top view of rubber concerning the present invention. It is a bottom view of rubber concerning the present invention. It is AA 'sectional drawing of FIG. It is BB 'sectional drawing of FIG.

Explanation of symbols

10: Bolt receiving groove 20: Bolt locking protrusion 30: Vertical flow path for adhesive 40: Horizontal flow path for adhesive 50: External channel for suppressing adhesive leakage 60: Internal channel for suppressing adhesive leakage 70: Bottom nail 80 : Support stand

Claims (7)

  One or more support bases are formed in the lower part, and it has the blank space formed on the boundary of the space | interval of a construction floor surface and each support base, and the height of a support base, The vibration reduction rubber characterized by the above-mentioned.   The vibration reducing rubber according to claim 1, wherein the rubber has an additional margin space by a claw formed on a bottom surface of the rubber.   The vibration reducing rubber according to claim 2, wherein the height of the nail is 0.1 to 10 mm.   The vibration reducing rubber according to claim 1, further comprising a bolt housing groove and a locking projection formed on an upper portion of the rubber.   5. The adhesive horizontal flow path formed on the bottom surface of the bolt receiving groove, and the adhesive vertical flow path that penetrates the upper and lower portions of the rubber while communicating with the horizontal flow path. The vibration reducing rubber described in 1.   The vibration reducing rubber according to claim 5, further comprising an outer channel and an inner channel for suppressing adhesive leakage, which are formed outside and inside the vertical flow path for the adhesive, respectively.   The vibration reducing rubber according to any one of claims 1 to 6, wherein the rubber is used in a double flooring.

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