JP5153672B2 - Seismic fixing method with adhesive sheet - Google Patents

Description

  The present invention relates to a method for seismically fixing a manufacturing apparatus, a measuring apparatus, a computer or the like installed in a factory, for example.

  In general, when installing various apparatuses in a factory, as shown in FIG. 6, anchor bolts 30 are embedded in the concrete 11 of the floor 10, and the floor 10 is inserted into the through holes 32 of the bracket 31 attached to the lower part of the apparatus 20. An anchor bolt 30 projecting upward from the thread is inserted, a nut 33 is screwed into the threaded portion, and the device 20 is fixed so as not to move due to vibration such as an earthquake.

  Moreover, the leg part 21 with the height adjustment function provided in the bottom part of the apparatus 20 is made to contact | abut to the floor 10, and while correcting the inclination of the apparatus 20, rattling is prevented.

  Here, in the case where the apparatus 20 uses chemical liquid, water, or the like, in order to protect the concrete 11 of the floor 10 from deterioration due to penetration of the chemical liquid, water, or the like, a waterproof paint is applied to the upper surface of the concrete 11. The waterproof treatment layer 12 is provided by sticking the waterproof sheet.

  Further, as a method different from this method, in Patent Document 1 below, as shown in FIG. 7, an adhesive sheet 42 having adhesiveness and elasticity is attached to the lower surface of the plate-like body 41 as a fixture 40. In addition, an earthquake-resistant fixing method is described in which a device having a box-shaped fixing member 43 provided on the upper surface of the plate-like body 41 is used to fix the device 20 to the floor 10.

  In this fixing method, the plate-like body 41 of the fixing tool 40 is laid under the leg portion 21 of the apparatus 20, the leg portion 21 is engaged with the fixing member 43, and the adhesive sheet 42 adheres to the earthquake by the adhesive force and elastic deformation. The movement of the device 20 due to vibration such as the like is prevented, and the impact acting on the device 20 is reduced.

JP-A-11-299561

  However, in the method using the anchor bolt, it is necessary to remove the anchor bolt when the device is removed or moved. At this time, the concrete or the waterproof treatment layer of the floor is damaged, and the chemical liquid penetrates the floor from the damaged portion. There is a risk.

  In the method using the fixing tool, when the device is removed or moved, first, the engagement between the fixing member of the fixing device and the leg portion of the device is released, the device is lowered from the plate-like body, and the fixing tool is removed. Has to be peeled off the floor, and there is a problem that work is troublesome.

  For this reason, if the device is lifted and moved while the fixture is still engaged with the leg of the device, if the adhesive sheet has a strong adhesive force, a large force is required to peel the fixture from the floor. In short, if the adhesive strength is weak, the earthquake resistance is insufficient, and if a large earthquake occurs, the device may move with the fixture.

  Accordingly, an object of the present invention is to make it possible to easily remove or move an object while ensuring sufficient earthquake resistance, and to prevent damage to the floor.

  In order to solve the problems as described above, the present invention provides an adhesive sheet having adhesiveness and elasticity under a support portion on which a load acts as a part of an object to be seismically installed. The pressure-sensitive adhesive sheet is elastically deformed by pressure, and is pressed against the floor surface and the back surface of the support portion of the object to prevent movement of the object due to vibration such as an earthquake and to reduce the impact acting on the object. In the fixing method, a screw hole for removal that penetrates in the vertical direction is provided in the support portion of the object, and when removing the object from the floor, a removal bolt is screwed into the removal screw hole to support the removal bolt. The support part is lifted with respect to the floor by projecting downward from the floor so that the adhesive sheet can be peeled off the floor, and a block body located immediately below the screw hole for removal is provided, With the bets screwing, the distal end of the threaded shank of the removal bolt is had as to rotate while in contact with the block body.

  In this seismic fixing method, when the object is removed or moved, the supporting bolt is removed by screwing the removing bolt into the removing screw hole provided in the supporting part of the object and rotating it with a tool such as a spanner. Since the pressure-sensitive adhesive sheet is lifted from the floor and released from the close contact state, the pressure-sensitive adhesive sheet can be easily peeled off the floor.

  At this time, the tip of the screw shaft portion of the removing bolt rotates not in contact with the floor of the adhesive sheet, but the floor is not damaged.

The exploded perspective view which shows the use member of the earthquake-resistant fixing method which concerns on embodiment of this invention The perspective view which shows the fixed state same as the above Longitudinal side view The perspective view which shows the removal process same as the above Longitudinal side view Longitudinal side view showing conventional seismic fixing method using anchor bolts Longitudinal side view showing a seismic fixing method using a conventional adhesive fixture

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

  As shown in FIGS. 1 to 3, when the seismic fixing method is used to fix the device 20 used for manufacturing semiconductors to the floor 10 of a factory or the like, an L-shaped metal fitting is attached to the lower portion of the device 20. The bracket 1 is fixed with a bolt. At this time, the bracket 1 is oriented so that the horizontal portion extends outward from the lower end of the vertical portion.

  A square metal base plate 2 is attached to the lower surface of the horizontal portion of the bracket 1 with mounting bolts 3. The mounting bolt 3 is screwed into a mounting screw hole 5 formed near the center of the floor plate 2 through a through hole 4 formed in the horizontal portion of the bracket 1.

  Here, in the state where the floor plate 2 is attached to the bracket 1, the outer peripheral portion protrudes from the horizontal portion of the bracket 1, and each corner portion of the floor plate 2 penetrates in the vertical direction in the protruding portion. A removal screw hole 6 is provided. The bracket 1 and the floor plate 2 form a support portion 22 on which the load acts as a part of the device 20.

  Thus, while forming the support part 22, the adhesive sheet 7 which has adhesiveness and elasticity, such as urethane type rubber | gum, is laid under the flooring board 2. FIG.

  Further, one corner portion of the pressure-sensitive adhesive sheet 7 is cut out, and a block body 8 positioned immediately below the removal screw hole 6 is pasted to the back surface of the floor plate 2 at the cut-out portion with a double-sided tape or the like.

  The block body 8 is made of engineering plastic or the like that is slightly harder than the pressure-sensitive adhesive sheet 7 and has the same thickness as that of the pressure-sensitive adhesive sheet 7 in a state where the load of the device 20 is applied to the pressure-sensitive adhesive sheet 7.

  In addition to the seismic fixing work as described above, a leg 21 with a height adjustment function provided at the bottom of the apparatus 20 is brought into contact with the floor 10 to correct the inclination of the apparatus 20 and prevent rattling. . In addition, it is good for the bracket 1 to be able to adjust attachment height with respect to the apparatus 20. FIG.

  When the apparatus 20 is installed in this manner, the pressure-sensitive adhesive sheet 7 is elastically deformed by the load of the apparatus 20, and is pressed against the surface of the floor 10 and the back surface of the floor plate 2, and is accompanied by vibration such as an earthquake due to the pressure-sensitive adhesive force of the pressure-sensitive adhesive sheet 7. The movement of the device 20 is prevented, and the impact acting on the device 20 is mitigated by the elasticity of the adhesive sheet 7.

  On the other hand, when the device 20 is removed or moved, the bracket 1 is removed from the device 20 as shown in FIGS. 4 and 5, the bracket 1 and the floor plate 2 are separated, and the device 20 is positioned immediately above the block body 8. A removal bolt 23 is screwed into the removal screw hole 6 and rotated with a tool such as a spanner.

  As a result, the detaching bolt 23 protrudes downward from the floor plate 2, the floor plate 2 is lifted with respect to the floor 10, and the adhesive sheet 7 is released from the close contact state, so that the adhesive sheet 7 can be easily peeled from the floor 10. .

  Further, when the flooring plate 2 is lifted, only the block body 8 is peeled off from the flooring plate 2 while the adhesive sheet 7 is stuck to the flooring plate 2, so that the rotational resistance of the detaching bolt 23 is not significantly increased.

  At this time, the tip of the screw shaft portion of the removing bolt 23 rotates not in contact with the floor 10 but on the block body 8 of the adhesive sheet 7, so that the floor 10 is not damaged and the concrete 11 of the floor 10 is not damaged. Even when the waterproof treatment layer 12 is provided on the upper surface, the waterproof treatment layer 12 is protected, and the waterproofness and chemical resistance of the floor 10 are not impaired.

  In addition, in the said embodiment, although the block body 8 was provided only in one corner part of the adhesive sheet 7, you may make it provide the block body 8 in a some corner part.

  In addition, the floor plate 2 has a square shape so that it can be attached to the bracket 1 without being conscious of the directionality, and the removal screw holes 6 are provided at the four corners thereof. Other shapes may be used, and the removal screw holes 6 may be provided only at two corners or one corner.

  Moreover, although the support part 22 shall consist of the bracket 1 and the baseplate 2, you may make it support a target object by an integral member.

DESCRIPTION OF SYMBOLS 1 Bracket 2 Base plate 3 Mounting bolt 4 Through-hole 5 Mounting screw hole 6 Removal screw hole 7 Adhesive sheet 8 Block body 10 Floor 11 Concrete 12 Waterproofing treatment layer 20 Apparatus 21 Leg part 22 Support part 23 Removal bolt

Claims (1)

An adhesive sheet (7) with adhesiveness and elasticity is laid under the support (22) where the load acts as part of the object to be seismically installed, and the adhesive sheet (7) is elasticized by the load of the object. While being deformed, it is pressed against the surface of the floor (10) and the back surface of the object support (22) to prevent the object from moving due to vibrations such as earthquakes and to alleviate the impact acting on the object. In the seismic fixing method, the support portion (22) of the object is provided with a removal screw hole (6) penetrating vertically, and when removing the object from the floor (10), the removal screw hole (6 ) Screw the removal bolt (23) into, and project the removal bolt (23) downward from the support portion (22), so that the support portion (22) is lifted from the floor (10), and the adhesive sheet (7) can be peeled off the floor (10)
Further, a block body (8) is provided immediately below the removal screw hole (6), and the screw shaft portion of the removal bolt (23) is attached to the block body (23) when the removal bolt (23) is screwed. 8) A seismic fixing method using an adhesive sheet, which rotates while abutting on 8).

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