JP5302919B2 - Temporary fixing bracket for sliding bearing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a temporary fixation fitting for a sliding bearing, which prevents a bearing member from rotating within a horizontal plane with respect to a sliding member, eliminates large-scaled positional adjustment work using a crane, and adjusts quickly a position at the time of construction while evading the temporary fixation fitting from being damaged. <P>SOLUTION: This temporary fixation fitting 1 for the sliding bearing S includes a lower shoe 3, and an upper shoe 2 slidable on a surface of the lower shoe 3. The temporary fixation fitting 1 has a lower support plate abutting on the lower shoe 3, and an upper support plate abutting on the upper shoe 2. The lower support plate and the upper support plate are constituted to be pressed to the lower shoe 3 and the upper shoe 2, respectively, by the rotation of a position adjusting bolt screwed into a through-screw hole formed in the temporary fixation fitting 1. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a temporary fixing bracket for a sliding bearing. More particularly, the present invention relates to a temporary fixing bracket for preventing separation of a sliding bearing used in a seismic isolation structure during loading / unloading.

  In order to reduce the transmission of energy generated during an earthquake to a building, a sliding support is provided between the superstructure and the foundation structure of the building, and the building is slid during the earthquake to cause the building to slide. It is known to lengthen the period of shaking of things.

  Such a sliding bearing is generally composed of a supporting member (upper arm) fixed to the superstructure of the building and a sliding member (lower arm) disposed on a base plate or fixing plate fixed in advance to a concrete foundation. ing.

  The support member and the sliding member are completely separate members, but are arranged so that the centers of both members coincide with each other at the time of construction. Therefore, both members are in a state where they are aligned to improve workability. Are handled as one. And in order to prevent separation of both members at the time of cargo handling / transportation, the both members are fixed by temporary fixing metal fittings to restrict their relative movement.

  FIG. 8 is an explanatory plan view of an example of such a conventional temporary fixing metal fitting, and FIG. 9 is a front explanatory view of the temporary fixing metal fitting used in FIG. The temporary fixing bracket 31 fastens the side surface of the base spot 32 that is a support member and the side surface of the sole plate 33 that constitutes the sliding member. The sole plate 33 and the slide plate 34 disposed on the sole plate 33 constitute a sliding support member. The base spot 32 is slidably disposed on the slide plate 34. Yes.

  As shown in FIG. 10, the temporary fixing bracket 31 is provided near the other end of the main body 35, the main body 35 made of a strip, the upper flange 36 provided at one end of the main body 35. And a lower flange 37. Each of the upper flange 36 and the lower flange 37 is made of a rectangular plate material, and a through hole 38 for a temporary fixing bolt is formed. By screwing a temporary fixing bolt 39 into a screw hole (not shown) formed on the side surface of the base pot 32 and a screw hole (not shown) formed on the side surface of the sole plate 33, And the side surface of the sole plate 33 are fastened to fix the bearing member (upper collar) and the sliding member (lower collar) of the sliding bearing.

  However, with the conventional temporary fixing bracket, the positional relationship between the two members could not be adjusted after temporary fixing. Therefore, the manufacturing accuracy of the sliding support and the displacement between the supporting member and the sliding member, which may occur due to loading / unloading, are shifted. It could not be adjusted, and it was a problem on the construction accuracy of the building.

In view of this, there has been proposed a temporary fixing metal fitting capable of adjusting the relative positional relationship between the support member and the sliding member while maintaining the temporarily fixed state (see, for example, Patent Document 1).
Patent Document 1 discloses a technique for adjusting the position of the laminated rubber body 4 fixed to the building 2 and the sliding plate 5 fixed to the concrete foundation 3 using the turnbuckle 20 shown in FIG. It is disclosed. The turnbuckles 20 are radially installed from the center of the sliding support 1 at four locations at intervals of 90 degrees. One end of each turnbuckle 20 is fastened to the corner of the rectangular sliding plate 5 and the other end is Also, it is fastened to the corner of the upper mounting plate 11 of the laminated rubber body 4 which is also rectangular.

JP-A-11-350785

  However, since the temporary fixing bracket described in Patent Document 1 is configured to fasten (fix) one point on the sliding plate 5 and one point on the upper mounting plate 11 with the turnbuckle 20, the laminated rubber body 4 has the sliding plate 5. In the case where rotation in the horizontal plane cannot be effectively prevented and both of them are rotated during loading and transportation, a crane or the like is used before fine adjustment with the turnbuckle 20. Adjustments that may have been necessary. In this case, there is a problem that adjustment work becomes large. In addition, when a large horizontal rotation occurs, an excessive force acts on the fastening portion of the turnbuckle 20, so that the screw portion of the turnbuckle 20 is easily damaged, and there is a problem that it takes time to adjust the position during construction. .

  The present invention has been made in view of such circumstances, and prevents the support member from rotating in a horizontal plane with respect to the slide member, eliminates a large position adjustment operation using a crane or the like, and temporarily fixes it. An object of the present invention is to provide a sliding support temporary fixing metal fitting capable of quickly adjusting the position during construction while avoiding damage to the metal fitting.

The sliding support temporary fixing bracket of the present invention (hereinafter also simply referred to as “temporary fixing bracket”) is for temporarily fixing a sliding bearing having a lower rod and an upper rod that can slide on the surface of the lower rod. Temporary fixing metal fittings,
The temporary fixing bracket includes a lower bearing plate that contacts the lower collar and an upper bearing plate that contacts the upper collar,
The lower bearing plate and the upper bearing plate are configured to be pressed against the lower and upper collars, respectively, by rotation of a position adjusting bolt screwed into a through screw hole formed in the temporary fixing bracket. It is characterized by.

  In the temporary fixing bracket of the present invention, the lower and upper support plates press the lower and upper support plates, respectively, so that the rotation of the lower and upper support in the horizontal plane during loading and transporting is effective. Can be prevented. As a result, large-scale position adjustment work using a crane or the like can be eliminated. In addition, since the upper and lower heels do not rotate in the horizontal plane, excessive force does not act on the temporary fixing bracket, and the temporary fixing bracket can be prevented from being damaged. For this reason, the operation | work which loosens or tightens a volt | bolt can be performed smoothly, and the position adjustment at the time of construction can be performed rapidly.

The lower arm consists of a sole plate and a slide plate fixed on the sole plate,
One end of the temporary fixing bracket may be fixed to the sole plate, and the other end of the temporary fixing bracket may be fixed to the upper collar.

  A temporary fixing bolt that can be inserted into a through-hole formed at the other end of the temporary fixing bracket, with the one end fixed to the sole plate by a temporary fixing bolt that can be inserted into a through-hole formed at one end of the temporary fixing bracket. The other end can be fixed to the upper collar.

The outer shape of the sole plate and the upper collar are both square, and the sides of the sole plate and the upper collar are arranged so as to be parallel to each other,
The temporary fixing metal fittings are composed of upper and lower temporary fixing metal fittings arranged opposite to each other with the upper collar as a center, and left and right temporary fixing metal fittings arranged opposite to each other around the upper collar. Can be.

The lower support plate may be in contact with the approximate center of the side surface of the sole plate, and the upper support plate may be in contact with the approximate center of the side surface of the upper collar.
Eyebolts can be disposed at the four corners of the sole plate.

  According to the temporary fixing bracket of the present invention, it is possible to prevent the support member from rotating in a horizontal plane with respect to the sliding member, eliminate a large-scale position adjustment operation using a crane or the like, and avoid damage to the temporary fixing bracket. Position adjustment at the time of construction can be performed quickly.

It is plane explanatory drawing of the use condition of the temporary fixing metal fitting which concerns on one embodiment of this invention. It is front explanatory drawing of the use condition of the temporary fixing metal fitting shown by FIG. (A) is the principal part enlarged view of FIG. 1, (b) is the principal part enlarged view of FIG. (A) is a top view of the main body of the temporary fixing metal fitting shown by FIG. 1, (b) is the same front view, (c) is the same side view. It is explanatory drawing of a bearing plate. It is a figure explaining the case where a base pot is moved rightward, (a) is a principal member top view, (b) is a principal part front view. It is a figure explaining the case where a base pot is moved to the left direction, (a) is a principal member top view, (b) is a principal part front view. It is plane explanatory drawing of the use condition of the conventional temporary fixing metal fitting. It is front explanatory drawing of the use condition of the temporary fixing metal fitting shown by FIG. (A) is a top view of the temporary fixing metal fitting shown by FIG. 8, (b) is the same front view, (c) is the same side view.

Hereinafter, embodiments of a temporary fixing metal fitting according to the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is an explanatory plan view of the temporary fixing bracket 1 in use according to an embodiment of the present invention, and FIG. 2 is a front explanatory view of the temporary fixing bracket 1 in use as shown in FIG. 3A is an enlarged view of the main part of FIG. 1, and FIG. 3B is an enlarged view of the main part of FIG.

The temporary fixing metal 1 fastens the side surface of the base spot 2 which is a support member (upper collar) and the side surface of the sole plate 3 constituting the sliding member (lower collar). A sliding member of the sliding support S is constituted by the sole plate 3 and the slide plate 4 fixed on the sole plate 3, and the base spot 2 is slidably disposed on the slide plate 4. Yes.
During construction, the baspot 2 is fixed to an upper fixing plate (not shown) disposed in the upper structure of the building, while the sole plate 3 is a lower fixing plate that is embedded and fixed in the foundation structure of the building. (Not shown).

  The slide plate 4 is made of a stainless steel thin plate, and its surface (sliding surface) is coated with PTFE in order to reduce the frictional resistance and improve the sliding property. A bearing made of PTFE is accommodated on the lower surface of the baspot 2 that slides on the slide plate 4 by a bearing holder (not shown). This PTFE bearing slides on the slide plate 4.

  The outer shapes of the base pot 2 and the sole plate 3 are both square (quadrangle), and the outer shape of the slide plate 4 is an octagon. The side 2a of the base pot 2 and the side 3a of the sole plate 3 are disposed so as to be parallel to each other. Further, the baspot 2 and the sole plate 3 are arranged so that their centers coincide.

  The temporary fixing metal fittings 1 are arranged so as to face each other around the base spot 2 and the upper and lower (upper and lower in FIG. 1) temporary fixing metal fitting sets 1a and 1b. It is composed of left and right (left and right in FIG. 1) temporary fixing metal fittings 1c and 1d.

  As shown in FIGS. 3 to 4, each temporary fixing metal fitting 1 a, 1 b, 1 c, 1 d includes a main body portion 5 composed of a vertical member 5 a and a horizontal member 5 b, and an upper flange 6 provided at one end of the main body portion 5. And a lower flange 7 provided in the vicinity of the other end of the main body 5. Each of the upper flange 6 and the lower flange 7 is made of a rectangular plate material, and has a through hole 8 for a temporary fixing bolt and a through screw hole 9 for a position adjusting bolt. The side surface of the baspot 2 is formed by screwing a temporary fixing bolt 10 into a screw hole (not shown) formed on the side surface of the base pot 2 and a screw hole (not shown) formed on the side surface of the sole plate 3. And the side surface of the sole plate 3 are fastened to fix the sliding support member (upper collar) and the sliding member (lower collar).

  The temporary fixing metal fitting 1 of the present embodiment includes an upper bearing plate 11 that abuts on the side surface of the baspot 2 and a lower bearing plate 12 that abuts on the side surface of the sole plate 3. As shown in FIG. 5, the upper bearing plate 11 and the lower bearing plate 12 are made of a belt-like plate material, and a through hole 13 for the temporary fixing bolt 10 is formed. The temporary fixing bolt 10 is inserted into the through holes 8 of the flange portions 6 and 7 of the temporary fixing metal fitting 1 and the through holes 13 of the pressure bearing plates 11 and 12, and screw holes or sole plates 3 formed on the side surfaces of the base spot 2. It is screwed into the screw hole formed in the side surface.

  The upper bearing plate 11 and the lower bearing plate 12 rotate the position adjusting bolt 14 screwed into the through screw hole 9 for the position adjusting bolt of the flange portions 6 and 7 of the temporary fixing bracket 1, thereby The side surface or the side surface of the sole plate 3 can be pressed.

  Next, of the position adjustment of the sliding bearing S using the position adjusting bolt 14, the position adjustment in the left-right direction will be described. The vertical position adjustment can be performed in the same manner as the horizontal position adjustment.

  As shown in FIG. 6, when the baespot 2 is moved in the right direction, first, the temporary fixing bolt 10 on the baespot 2 side is loosened and the right side of the sole plate 3 (the side not shown in FIG. 6). The temporary fixing bolt 10 is loosened so that the baespot 2 can move by a predetermined distance in the left-right direction. Next, by tightening the position adjustment bolt 14 on the side of the baespot 2 and pressing the baespot 2 with the upper bearing plate 11, the baespot 2 is moved in the right direction by a necessary distance. Thereafter, the loosened temporary fixing bolt 10 on the side of the baespot 2 and the temporary fixing bolt 10 on the right side of the sole plate 3 are tightened to fix the baespot 2 and the sole plate 3.

  On the other hand, as shown in FIG. 7, when the baespot 2 is moved in the left direction, first, the temporary fixing bolt 10 on the sole plate 3 side is loosened and the right side of the baespot 2 (the side not shown in FIG. 7). The temporary fixing bolt 10) is loosened so that the beespot 2 can move by a predetermined distance in the left-right direction. Next, the position adjusting bolt 14 on the sole plate 3 side is tightened and the sole plate 3 is pressed by the lower bearing plate 12 to move the baespot 2 in the left direction by a necessary distance. In this case, since the sole plate 3 is fixed to the foundation structure and cannot move, the base spot 2 is pulled leftward by the temporary fixing bracket 1 due to the reaction force of the pressing force. Thereafter, the sole fixing bolt 10 on the sole plate 3 side loosened first and the temporary fixing bolt 10 on the right side of the base spot 2 are tightened to fix the sole plate 3 and the base spot 2.

In the present embodiment, the lower plate 12 and the upper plate 11 press the sole plate 3 and the baispot 2 respectively, so that the sole plate 3 and the baespot 2 in the horizontal plane at the time of cargo handling / transportation. Rotation can be effectively prevented. As a result, large-scale position adjustment work using a crane or the like can be eliminated. Further, since the rotation of the sole plate 3 and the base spot 2 in the horizontal plane does not occur, an excessive force does not act on the temporary fixing bracket 1 and the temporary fixing bracket 1 can be prevented from being damaged. For this reason, the operation | work which loosens or tightens the temporary fixing bolt 10 and the position adjustment bolt 14 can be performed smoothly, and the position adjustment at the time of construction can be performed rapidly.
In the present embodiment, eyebolts (not shown) used to suspend the sliding support S fixed by the temporary fixing bracket 1 can be provided at the four corners of the sole plate 3 (locations indicated by C in FIG. 1). . In this embodiment, since the turn buckle like the temporary fixing metal fitting described in Patent Document 1 is not used, the arrangement position of the eyebolts can be selected relatively freely.

The temporary fixing bracket according to the above-described embodiment is used for temporarily fixing a sliding bearing of a building. However, the temporary fixing bracket of the present invention can be used for other sliding bearings, for example, a sliding bearing such as a precision instrument. Can also be used.
Further, in the sliding support in the above-described embodiment, sliding is performed between the PTFE bearing and the slide plate coated with PTFE. However, the temporary fixing bracket of the present invention has a sliding structure of another configuration. It can also be used in bearings.

DESCRIPTION OF SYMBOLS 1 Temporary fixing metal fitting 2 Base pot 3 Sole plate 4 Slide plate 5 Main part 6 Upper flange 7 Lower flange 8 Through hole 9 Through screw hole 10 Temporary fixing bolt 11 Upper bearing plate 12 Lower bearing plate 13 Through hole 14 Position adjustment bolt 31 Temporary Fixing bracket 32 Base pot 33 Sole plate 34 Slide plate 39 Temporary fixing bolt S Sliding support

Claims (6)

A temporary fixing bracket for temporarily fixing a sliding bearing provided with a lower rod and an upper rod capable of sliding on the surface of the lower rod,
The temporary fixing bracket includes a lower bearing plate that contacts the lower collar and an upper bearing plate that contacts the upper collar,
The lower bearing plate and the upper bearing plate are configured to be pressed against the lower and upper collars, respectively, by rotation of a position adjusting bolt screwed into a through screw hole formed in the temporary fixing bracket. This is a temporary fixing bracket for sliding bearings. The lower arm consists of a sole plate and a slide plate fixed on the sole plate,
The temporary fixing bracket for a sliding support according to claim 1, wherein one end of the temporary fixing bracket is fixed to the sole plate, and the other end of the temporary fixing bracket is fixed to the upper collar.   A temporary fixing bolt that can be inserted into a through-hole formed at the other end of the temporary fixing bracket, with the one end fixed to the sole plate by a temporary fixing bolt that can be inserted into a through-hole formed at one end of the temporary fixing bracket. The temporary fixing bracket of the sliding bearing according to claim 2, wherein the other end is fixed to the upper collar. The outer shape of the sole plate and the upper collar are both square, and the sides of the sole plate and the upper collar are arranged so as to be parallel to each other,
The temporary fixing metal fittings are composed of upper and lower temporary fixing metal fittings arranged opposite to each other with the upper collar as a center, and left and right temporary fixing metal fittings arranged opposite to each other around the upper collar. The temporarily fixed metal fitting of the sliding bearing of Claim 2 or 3.   5. The sliding support temporary fixing bracket according to claim 4, wherein the lower support plate abuts substantially at the center of the side surface of the sole plate, and the upper support plate abuts at approximately the center of the side surface of the upper collar.   The temporary fixing metal fitting for a sliding bearing according to claim 4 or 5, wherein eyebolts are arranged at four corners of the sole plate.

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