JP2006009496A - Support cover, support and base isolating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a support cover of a simple composition without interfering movements of a contact surface and a moving member in relation to each other, enabling furthermore to prevent an adhesion of foreign objects to the contact surface without fail, as well as a support provided with the support cover and a base isolating device provided with the support. <P>SOLUTION: The support cover 152 is made of a flexible fabric material and includes a first mounting part 154 attached to a holder 116, a covering part 156 which can cover the whole area of a slide surface 112S and a skirt part 158 which covers a periphery (side surface) of a slide-receiving plate 112 reaching to a platform section 106B. The covering part 156 has a following member 160 folded inside once, so that the covering part 156 extends partially to allow the sliding when the slide plate 122 slides on the slide surface 112S. The simple structure by only providing the following part 160 to the covering part can allow the sliding of the slide plate 122 on the slide surface 112S with the condition that the slide surface 112S is kept covered. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a bearing cover, a bearing, and a seismic isolation device.

  2. Description of the Related Art Seismic isolation devices are known that support a supporting member by isolating and supporting a structure (supported member) such as a building. In such a seismic isolation device, the upper structure as the pointed member is supported by the support on the support member, and the support member and the upper structure are relatively movable in the horizontal direction. Further, a deformable member that is elastically deformed by the relative movement is disposed between the support member and the upper structure.

  As a support, there is a structure in which a sliding member attached to a building or the like via a fixing member slides on a sliding plate attached to a supporting member (or a supported member).

  However, if the sliding material slips on the sliding plate (contact surface) with foreign matter such as dust, the foreign material may enter between the sliding plate and the sliding material, which may cause damage.

  On the other hand, as shown in FIG. 7, the sliding support body 21 described in Patent Document 1 is provided with a sliding support cover 24 to prevent water and dust from entering the sliding surface 22. .

  However, in the configuration described in Patent Document 1, the water retaining layer 42 is provided on the lower side of the waterproof sheet 41 in order to absorb moisture on the sliding surface 22, and thus the structure becomes complicated.

In addition, a configuration in which the outer edge of the waterproof sheet 41 is fixed to the flat plate member 23 and the foundation 12 in order to prevent moisture from adhering to the sliding surface 22 and to eliminate the need for the water retaining layer 42 is also conceivable. Then, if the sheet is simply fixed, the waterproof sheet 41 does not follow the relative movement between the flat plate member 23 and the sliding support body 21 and becomes a resistance to this relative movement.
JP 2001-317228 A

  In consideration of the above facts, the present invention provides a bearing cover capable of reliably preventing foreign matter from adhering to the contact surface with a simple configuration without hindering relative movement between the contact plate and the moving member. It is an object of the present invention to obtain a bearing provided with a cover and a seismic isolation device provided with this bearing.

  In the first aspect of the present invention, the moving member fixed to one of the supporting member or the supported member via the fixing member, and the surface fixed to the other of the supporting member or the supported member and facing the moving member And a contact plate that is a contact surface with which the moving member is movably contacted, and is attached to the fixing member of a support that supports the supported member so as to be relatively movable in the horizontal direction on the supporting member. 1 attachment portion, a flexible covering portion extending from the attachment portion and covering at least the entire contact surface, a second attachment portion attached to the contact plate outside the covering portion, A tracking portion that is formed by partially folding the covering portion inwardly and that can follow the relative movement between the contact plate and the moving member to maintain the contact surface covering state in the covering portion. .

  Therefore, when the first mounting portion of the bearing cover is attached to the fixing member of the bearing and the second mounting portion is attached to the contact plate of the bearing, the covering portion covers the entire contact surface of the bearing. For this reason, it is possible to prevent foreign matter from adhering to the contact surface.

  Further, the covering portion is made flexible and a follower portion is formed. Even when the contact plate and the moving member move relative to each other, the cover portion follows this and maintains the covering state of the contact surface. Therefore, even when the contact plate and the moving member move relative to each other, it is possible to reliably prevent foreign matter from adhering to the contact surface. Since the follower portion is formed as a part of the cover portion that is flexible, the follower portion is deformed during relative movement between the contact plate and the moving member, and does not hinder this relative movement.

  In addition, since the follower can be formed by only folding the covering part partially inwardly, the structure becomes simple.

  The invention described in claim 2 is characterized in that in the invention described in claim 1, it further includes a skirt portion extending from the covering portion and capable of covering the side surface of the contact plate.

  Therefore, the side surface of the contact plate of the support can be covered by the skirt portion, so that it is possible to more reliably prevent foreign matter from adhering to the contact surface.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the second mounting portion is a bolt insertion hole into which a mounting bolt for mounting the contact plate to the supported member can be inserted. It is characterized by including.

  Therefore, the second mounting portion can be attached to the contact plate by using an attachment bolt for attaching the contact plate of the support to the supported member, and inserting the attachment bolt into the insertion hole. Since a new member for attaching the second attachment portion to the contact plate is not required, the configuration is simpler.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the divided portion provided from the first mounting portion to the covering portion, and the divided portion Or a joining means provided in the vicinity thereof and capable of joining the left and right portions of the divided portion.

  Therefore, each of the first mounting portion and the covering portion can be divided into left and right portions of the divided portion by the divided portion, and the support cover can be opened in a substantially fan shape. As a result, for example, when it becomes necessary to inspect the inside of the support cover, the support cover is opened in a substantially fan shape, and this inspection can be easily performed.

  Since the left and right portions of the divided portion can be joined by the joining means, the contact surface can be covered and adhesion of foreign matters can be prevented.

  In addition, a plurality of division parts are provided, and each of the first attachment part and the covering part is completely divided into a plurality of parts (however, the first attachment part, the covering part, and the second attachment part are continuously integrated). You may be).

  The invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein the first attachment portion is provided on the first attachment portion, and the first attachment portion can be tightened to the fixing member. And a tightening member.

  Therefore, by tightening the first attachment portion to the fixing member by the tightening portion, the attachment to the fixing member can be more reliably performed. Further, by reducing the gap between the first mounting portion and the fixing member (preferably eliminating the gap), it is possible to prevent foreign matter from entering the inside of the support cover.

  In the invention according to claim 6, the moving member fixed to one of the supporting member or the supported member via the fixing member, and the surface fixed to the other of the supporting member or the supported member and facing the moving member A contact plate that is a contact surface with which the moving member is movably contacted, and is mounted so as to cover the entire surface of the contact surface between the fixing member and the contact plate. And the support cover according to any one of the above.

  In this support, the moving member is fixed to one of the supporting member and the supported member via a fixing member, and the contact plate is fixed to the other. The moving member supports the load of the supported member on the contact plate and is movable with respect to the contact surface of the contact plate. Then, relative movement of the supported member with respect to the support member in the horizontal direction is allowed by moving the moving member on the contact plate (contact surface).

  The support is provided with the support cover according to any one of claims 1 to 5, and the contact surface of the support is covered with a covering portion. For this reason, it is possible to prevent foreign matter from adhering to the contact surface with a simple configuration, and it does not hinder the relative movement between the contact plate and the moving member.

  The invention according to claim 7 is characterized by comprising the support according to claim 6 and a deformable member that is elastically deformed by the relative movement of the support member and the supported member in the horizontal direction.

  If the support member and the supported member are to move relative to each other in the horizontal direction, this movement is allowed by the support.

  In addition, since the bearing according to claim 6 is provided, the bearing cover that constitutes the bearing can prevent foreign matter from adhering to the contact surface with a simple structure, and can prevent relative movement between the contact plate and the moving member. There is no hindrance.

  The above-mentioned “supported member” may be a structure that is supported through the sliding support of the present invention. For example, an office building, a hospital, a housing complex, a museum, a public hall, a school, a government building, a shrine and a temple , Bridges, stadiums, lighting, etc. In addition, the “support member” may be any member that supports the above-described supported member via the sliding support of the present invention, and includes, for example, the foundation, base, ground, and the like of these supported members.

  Since the present invention has the above-described configuration, it is possible to reliably prevent foreign matter from adhering to the contact surface with a simple configuration without inhibiting the relative movement between the contact plate and the moving member.

  FIG. 1 shows a seismic isolation device 102 according to the first embodiment of the present invention between a building foundation 106 as an example of a supporting member and a steel frame 108 (or a PC board) of a building as an example of a supported member. The state arranged in is shown. The seismic isolation device 102 includes a sliding bearing 104 and a restoring member 110.

  As shown in detail in FIG. 2, the sliding bearing 104 includes a bearing body 105 and a bearing cover 152 attached to the bearing body 105. The support main body 105 has a slide receiving plate 112 that is fixed on the base portion 106 </ b> B of the building foundation 106. A mounting bolt 107B is embedded in the base portion 106B, and the slip receiving plate 112 is fixed to the base portion 106B by inserting the mounting bolt 107B through an insertion hole (not shown) into the slip receiving plate 112 and screwing the nut 107N. Is done.

  The upper surface of the slip receiving plate 112 is a slip surface 112S. The upper surface of the base portion 106B is formed flat, and thereby the flatness of the slip receiving plate 112 (particularly, the slip surface 112S) is ensured.

  The sliding bearing 104 has a holder 116 that is fixed to the steel frame 108 by bolts 114. Two slide plate fixing brackets 118 and 119 are attached to the lower surface of the holder 116 with bolts 114 in the vertical direction. The inside of the lower sliding plate fixing bracket 118 is a hollow portion, and the sliding plate 122 is fixed via a buffer member 120 made of an elastic body such as rubber. The sliding plate fixing bracket 118 and the sliding receiving plate 112 are not in contact with each other, but the sliding plate 122 is in contact with the sliding receiving plate 112, and the sliding plate 122 slides on the sliding surface 112S. . A sliding member 124 made of a coating film is disposed between the sliding plate 122 and the sliding receiving plate 112, and these dynamic friction coefficients are set within a predetermined range. The dynamic friction coefficient is preferably in the range of 0.01 to 0.09. If the value of the dynamic friction coefficient is less than 0.01, there is a risk that the detached house may move in the horizontal direction due to, for example, strong winds. it can. If the coefficient of dynamic friction exceeds 0.09, the friction between the sliding plate 122 and the sliding receiving plate 112 may be a resistance to relative movement between the detached house and the ground, but it should be 0.09 or less. Therefore, this resistance can be reduced and the detached house and the ground can be reliably moved relative to each other. In addition, it is preferable that a lubricant such as wax is applied to the sliding surface 112S of the slip receiving plate 112 as necessary, and the dynamic friction coefficient is set to a predetermined value.

  As shown in detail in FIGS. 2 and 3, the support cover 152 is formed of a flexible cloth material, and has a flat cylindrical first attachment portion 154 attached to the holder 116. . From the first attachment portion 154, a covering portion 156 is formed so as to extend obliquely downward and cover the entire surface of the sliding surface 112S. Further, a skirt portion 158 extending from the outside of the covering portion 156 to cover the outer periphery (side surface) of the slide receiving plate 112 and reaching the base portion 106B is extended. In the present embodiment, a rectangular plate is used as the slip receiving plate 112. Therefore, the outer edge of the covering portion 156 and the skirt portion 158 are also formed in a rectangular shape corresponding thereto, and the entire support cover 152 is a substantially square weight. It is in the shape.

  As can be seen from FIG. 2, the covering portion 156 has a shape that is once folded inside so as to extend further outward, in the middle of the portion extending outward from the first mounting portion 154. This portion is the follower 160. Since the covering portion 156 is substantially extended by the follow-up portion 160, as shown in FIG. 4, when the sliding plate 122 slides on the sliding surface 112S, the covering portion 156 partially extends (the first mounting portion 154 is moved). This slip is allowed).

  As shown in FIG. 5, the support cover 152 is formed with a single linear divided portion 162 that extends from the first attachment portion 154 to the skirt portion 158 through the covering portion 156 (including the follower portion 160). The first mounting portion 154, the covering portion 156, and the skirt portion 158 are divided into left and right sides of the dividing portion 162 so that the support cover 152 can be opened in a substantially fan shape.

  Moreover, the hook-and-loop fastener 164 is attached to both sides of the division part 162, and the left and right parts of the division part 162 are joined together so that the whole can be maintained in a substantially pyramid shape.

  The first attachment portion 154 is provided with a fastening string 166, and can be tightened in a state where the first attachment portion 154 is disposed around the holder 116. In this way, the first attachment portion 154 can be easily attached to the holder 116 without a gap by simply tightening using the tightening string 166.

  As shown in FIG. 6, from each of the four corners 156 </ b> C of the covering portion 156, a triangular attachment piece 168 extends inward, and a bolt insertion hole 170 is formed in each of the attachment pieces 168. Yes. An attachment bolt 107B for attaching the slide receiving plate 112 to the base portion 106B can be inserted into the bolt insertion hole 170. Therefore, the attachment piece 168 (second attachment portion) is attached to the base portion 106B by inserting the attachment bolt 107B into the bolt insertion hole 170 and screwing the nut 107N.

  In contrast, as shown in FIG. 1, the restoring member 110 is fixed to a disk-shaped lower flange 132, a substantially cylindrical rubber body 136 erected from the center of the lower flange 132, and the upper surface of the rubber body 136. A disk-shaped upper flange (not shown). The lower flange 132 is fixed to the base portion 106B by a bolt 114 around the lower flange 132. The upper flange 134 is also fixed to the steel frame 108 by bolts 114.

  The rubber body 136 includes a plurality of metal plates 142 that are formed in a certain size and are stacked with a predetermined gap in the thickness direction, and a rubber layer 144 that is disposed in the gap. The rubber constituting the rubber layer 144 is further disposed around the edge of the metal plate 142 and the upper flange 134 to form a rubber wall 146, which covers these from the side. Thereby, the rubber layer 144 is protected from ultraviolet rays and the like, and its durability is improved. Specific examples of the material for the rubber layer 144 and the rubber wall 146 include synthetic rubber such as EPDM.

  The numbers and positions of the sliding bearings 104 and the restoring members 110 are not particularly limited as long as they can perform the required functions. Further, it is not necessary that the number of the sliding support 104 and the number of restoring members 110 are the same. Moreover, the structure which fixes each member which comprises the sliding bearing 104 and the restoring member 110 is not specifically limited, either. For example, locking members such as the bolts 114 and screws described above may be used, but these methods may be used when bonding with an adhesive or the like or physical fitting is possible.

  In the seismic isolation device 102 according to the first embodiment configured as described above, the support cover 152 is placed between the holder 116 and the edge portion of the slide receiving plate 112 so as to cover the support cover 152. The part 156 covers the sliding surface 112S. The support cover 152 is easily attached to the support body simply by tightening the first attachment portion 154 to the holder 116 with the fastening string 166 and inserting the mounting bolt 107B into the bolt insertion hole 170 and screwing the nut 107N. 105 can be attached. A new member for attaching the support cover 152 (attachment piece 168) to the slide receiving plate 112 becomes unnecessary.

  In this seismic isolation device 102, the sliding bearing 104 supports the steel frame 108 of the detached house on the building foundation 106. In the sliding support 104, since the sliding plate 122 slides with respect to the sliding surface 112S of the sliding receiving plate 112, for example, even when a rolling motion occurs in the building foundation 106 due to an earthquake or the like, the shaking is directly applied to the steel frame 108. Will not be transmitted. In particular, since the buffer member 120 made of an elastic body such as rubber is interposed between the holder 116 and the sliding plate 122, for example, even when an unbalanced load acts on the sliding bearing 104, the sliding surface 112S, The opposing surface (lower surface) of the sliding plate 122 is kept parallel.

  When the building foundation 106 and the steel frame 108 are relatively moved in the horizontal direction, the rubber body 136 of the restoring member 110 undergoes shear deformation, and the elastic force acts as a restoring force on the building foundation 106 and the steel frame 108. As a result, the relative movement between the building foundation 106 and the steel frame 108 is limited and the period is increased, so that they attempt to return to the position before the relative movement and the energy of the relative movement is absorbed.

  Further, in the sliding support 104 of the present embodiment, the sliding surface 112S is covered with the supporting cover 152, and foreign matters such as dust and dirt are not attached to the sliding surface 112S. Since the surface property of the sliding surface 112S can be maintained satisfactorily, the sliding of the sliding plate 122 with respect to the sliding surface 112S is not affected. In particular, in this support cover 152, the skirt portion 158 covers the side surface of the slip receiving plate 112 so as to reach the base portion 106B, so that intrusion of dust or the like that goes around the lower side of the support cover 152 is ensured. It is possible to prevent.

  Further, in the present embodiment, since the first attachment portion 154 is fastened to the holder 116 by the fastening cord 166 without any gap, entry of foreign matter into the support cover 152 is more reliably prevented.

  As shown in FIG. 4, when the sliding plate 122 slides with respect to the sliding surface 112S of the sliding receiving plate 112, the covering portion 156 partially extends by the follower 160 of the supporting cover 152, and the supporting cover 152 is Follow the slip. As a result, this slip is allowed and no inadvertent resistance is generated. Even when the holder 116 and the sliding plate 122 have moved to the edge of the sliding surface 112S due to the sliding, the state in which the sliding surface 112S is covered by the covering portion 156 can be reliably maintained.

  During use of the sliding bearing 104, it may be necessary to inspect the interior of the bearing cover 152. In this case, as shown in FIG. 5, the hook-and-loop fastener 164 is peeled off to divide the first attachment portion 154, the covering portion 156, and the skirt portion 158 into the left and right sides of the division portion 162. Thereby, since the support cover 152 can be opened in a substantially fan shape, the inside of the support cover 152 can be easily inspected. After the inspection or the like is completed, if the left and right of the divided portion 162 are joined again with the hook-and-loop fastener 164, the support cover 152 as a whole can be formed into a substantially quadrangular pyramid shape and can be maintained in a shape covering the sliding surface 112S.

  As can be seen from the above description, the sliding plate 122 is allowed to slide on the sliding surface 112S while maintaining the covering state of the sliding surface 112S with a simple configuration in which the follower 160 is provided on the covering portion 156. Can do.

  In the above description, the support cover 152 made of a cloth material is taken as an example. However, the support cover 152 has a deformation followability that does not give excessive resistance to the sliding of the sliding plate 122 with respect to the sliding surface 112S. The material is not particularly limited, and may be, for example, a polyester fabric, tarpaulin, a vinyl chloride sheet, or the like.

  In the above description, the follower 160 according to the present invention has a shape in which the covering portion 156 is partially folded inward. However, the present invention is not limited to this. It may be what is said.

  The joining means of the present invention is not limited to the hook-and-loop fastener 164 as long as the right and left portions of the divided portion 162 can be reliably joined. For example, a general fastener or hook may be used.

  The tightening member of the present invention may also be a hook-and-loop fastener as long as the first mounting portion 154 can be securely tightened and attached to the holder 116.

  In the above description, the so-called sliding bearing 104 is given as the bearing of the present invention. However, the sliding bearing 104 may be a so-called elastic sliding bearing provided with a laminated rubber body. Furthermore, it may be a so-called rolling bearing.

It is a partially broken front view which shows the seismic isolation apparatus of 1st Embodiment of this invention. It is sectional drawing which shows the sliding bearing of 1st Embodiment of this invention. It is a perspective view which shows the sliding bearing of 1st Embodiment of this invention. It is a top view which shows the sliding support of 1st Embodiment of this invention in the state which the sliding board moved on the sliding surface. It is a perspective view shown in the state where the slide support of a 1st embodiment of the present invention was divided by a division part. It is a bottom view of the cover for support which comprises the slide support of 1st Embodiment of this invention. It is a partially broken perspective view which shows the conventional sliding support apparatus.

Explanation of symbols

102 Seismic isolation device 104 Slide bearing (support)
105 Bearing body 106 Building foundation (supporting member)
106B base 107N nut 107B mounting bolt 108 steel frame base (supported member)
110 Restoring member 112 Sliding plate (moving plate)
112S Sliding surface (moving surface)
114 Bolt 116 Holder 118 Sliding plate fixing bracket 119 Sliding plate fixing bracket 120 Buffer member 122 Sliding plate 132 Lower flange 134 Upper flange 136 Rubber body 142 Metal plate 144 Rubber layer 146 Rubber wall 152 Bearing cover 154 First mounting portion 156 Covering portion 156C Corner portion 158 Skirt portion 160 Tracking portion 162 Dividing portion 164 Surface fastener (joining means)
166 Tightening string (Tightening member)
168 Mounting piece 170 Bolt insertion hole

Claims (7)

A moving member fixed to one of the supporting member or the supported member via a fixing member, and a surface fixed to the other of the supporting member or the supported member and facing the moving member are in contact with the moving member so that the moving member can move. A first attachment portion attached to the fixing member of a support that supports the supported member on the support member so as to be relatively movable in the horizontal direction.
A flexible covering portion extending from the mounting portion and covering at least the entire contact surface;
A second attachment part attached to the contact plate outside the covering part;
A follow-up part that is formed by partially folding the covering part inwardly, and that can follow the relative movement between the contact plate and the moving member to maintain the contact surface covering state at the covering part,
A bearing cover characterized by comprising: A skirt portion extending from the covering portion and capable of covering the side surface of the contact plate,
The bearing cover according to claim 1, further comprising:   The said 2nd attaching part is comprised including the volt | bolt insertion hole which can insert the attachment volt | bolt for attaching the said contact plate to the said to-be-supported member, The Claim 1 or Claim 2 characterized by the above-mentioned. Cover for support. A divided portion provided so as to reach the covering portion from the first mounting portion;
A joining means that is provided in the divided part or in the vicinity thereof and can join the left and right parts of the divided part;
The bearing cover according to any one of claims 1 to 3, wherein the bearing cover is provided. A tightening member provided on the first mounting portion and capable of tightening the first mounting portion to the fixing member;
The support cover according to any one of claims 1 to 4, characterized by comprising: A moving member fixed to one of the supporting member or the supported member via a fixing member;
A contact plate fixed to the other of the support member or the supported member and having a surface facing the moving member as a contact surface with which the moving member is movably contacted;
The support cover according to any one of claims 1 to 5, which is mounted so as to cover the entire surface of the contact surface between the fixing member and the contact plate.
The bearing characterized by having. The support according to claim 6;
A deformable member that is elastically deformed by a relative movement in a horizontal direction between the support member and the supported member;
A seismic isolation device characterized by comprising:

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