JP3753713B2 - Wide expansion joint for seismic isolation - Google Patents

Description

  The present invention relates to a wide expansion joint in a base-isolated building or the like, that is, an expansion joint having a large clearance C.

  An expansion joint for construction is a dividing line provided to divide the transmission of stress generated by fluctuation factors such as external force applied to a building, and prevents a clash between left and right buildings built adjacent to each other. This is a joint member that closes the clearance C (gap) provided to the wall with a decorative cover that can move following the shaking movement of the building, and connects the left and right buildings so that they can be used together.

  Therefore, the expansion joint has different names depending on the attachment site, such as for the outer wall, for the floor, for the ceiling, for the roof, and for the inner wall, and its shape varies depending on the attachment site, In summary, it is composed of an aggregate that follows the change in the clearance C due to an earthquake or the like, a decorative edge material attached to the aggregate, and a decorative cover.

  The decorative cover attached to the conventional expansion joint part is provided to support the decorative cover plate because the assumed change in clearance C due to temporary deformation such as earthquakes and permanent deformation such as non-uniform subsidence is relatively small. Many of the constructions are fitted and mounted between the decorative edges at both ends.

  Both ends of this conventional decorative cover have a configuration in which the prospective stretched portion is stored in the decorative margin material in an overlapping manner, and there is a clearance gap in the decorative margin material so as to cope with shrinkage. And the change in the clearance C due to an earthquake or the like between the decorative edges.

  FIGS. 12 and 13 are perspective cross-sectional explanatory views illustrating a conventional example showing the shape of a conventional external wall expansion joint. FIG. 12 shows the same outer wall surfaces of opposing buildings A and B with a clearance C therebetween. FIG. 13 shows a type in which the outer wall surfaces of opposing buildings A and B form an outer wall corner via a clearance C. FIG.

  12 and 13, a clearance C is provided between buildings A and B facing each other, and an expansion joint 50 or 54 that covers the clearance C is provided.

  In FIG. 12, the expansion joint 50 includes makeup edges 52 a and 52 b fixed to edges 51 a and 51 b forming aggregates, and a makeup cover 53 sandwiched at both ends by the makeup edges 52 a and 52 b, The decorative cover 53 closes the clearance C between the buildings A and B, and can follow the change in the clearance C when the buildings A and B swing back and forth, left and right, and up and down. The prospective extension portion is stored in an overlapping manner, and a clearance gap is provided in the decorative edge materials 52a and 52b that sandwich the decorative cover at both ends so that the shrinkage of the clearance C can be accommodated.

  Therefore, when the clearance C is increased, the width of the decorative cover 53 serving as a closing material is increased, and the widths of the decorative edge materials 52a and 52b having the stretchable portion of the decorative cover 53 are also increased.

  FIG. 13 shows an expansion joint 54 at a so-called corner portion of the outer wall, and the structure of the decorative cover 53 of the expansion joint 54 is on the side of the decorative edge material 56a that is in perpendicular contact with the outer wall 55a of the building A. Since the stretchable portion cannot be provided, it is configured to be able to cope with a certain degree of change in front and back and up and down, and the clearance C is stretched and fixed substantially. Since the expansion / contraction gap 57 of the cover 53 is provided, the width of the decorative edge material 56b is very large.

  In recent years, however, the size and height of buildings have increased, and many buildings with seismic isolation structures have been built, so the clearance C between buildings has been about 50mm to 300mm. From 800mm to 1600mm, expansion joints for base-isolated buildings that can follow the movable amount of ± 800mm have been widely used for temporary deformation such as earthquakes.

  Of the above trends, expansion joints for outer walls with a large clearance C cover the clearance C between outer walls with a decorative cover material made of metal such as stainless steel or aluminum. The safety weight of the heavy weight cover plate material is firmly held and the temporary deformation such as an earthquake can smoothly move the cover material to follow the shaking, building, expansion, There is a demand for an expansion joint having a movable mechanism that does not damage the joint.

  Further, when the expansion joint for an outer wall having a large clearance C and a large movable amount is manufactured with the configuration of the conventional expansion joint for an outer wall described with reference to FIGS. 12 and 13, the width of the decorative cover material and the decorative edge are produced. Since the width of the material becomes very large and becomes a heavy product, it is difficult to perform the mounting work at a high place.

  In addition, the construction of vertical strip-shaped expansion joints that protrude from other outer wall surfaces with wide metal materials on the outer wall of tiles or stone is significantly impeded by the design of the building. Therefore, it is desired to realize an expansion joint having an appearance that is excellent in design.

  The problem to be solved by the present invention will be described by taking an expansion joint for covering a wide clearance C and an expansion joint for an outer wall in a base-isolated building as an example.

  In the present invention, all of the expansion joint mechanism is accommodated in the clearance C provided between the outer walls of the building, so that a design that is superior to the conventional expansion joint is produced, and a metal decorative cover is provided. As a structure that can be divided into at least two in the width direction, the workability is good and the decorative cover material can be securely held, and the decorative cover material can be moved smoothly in response to temporary deformation such as an earthquake. The purpose is to provide an expansion joint with a movable mechanism that can follow and does not damage the building.

  As a means for solving the problem, the present invention provides a plurality of appropriate intervals between edge members made of threading materials provided at the outer wall edge portions of the clearance C set between the buildings A and B facing each other. A movable arm mounted diagonally and slidable at both ends with respect to the edge material, a catch pan carried by the movable arm and always held at the center of the clearance C, and at least divided into two on the catch pan And the other end of each of the decorative covers fixedly arranged on the edges of the buildings A and B via spring hinges, a plurality of pulleys arranged at an arbitrary pitch on one end side of each of the decorative cover dividing portions, A guide rail provided on the other end of the decorative cover facing the pulley, and an outer rail and an inner rail having an arbitrary pitch installed on the back of each of the divided decorative covers. A telescopic slide rail, a fastening means such as a screw for fixing the outer rail of the slide rail to the decorative cover, a ball caster provided at each end of the inner rail of the slide rail, and the ball caster The expansion joint including the decorative cover plate is provided in the divided part of the decorative cover that is divided into at least two parts when the clearance C contracts due to an earthquake or the like. As the pulleys come into contact with the guide rails and move up each other, they can follow the clearance C contraction, and when the clearance C widens, a gap is created in the split part of the decorative cover so that the clearance C can follow the spread of the clearance C. Configured.

Further, the present invention is a so-called outer wall corner expansion joint, in which the outer wall between buildings A and B facing each other forms an outer wall corner shape and has a clearance C set in the outer wall corner portion. In this case, a plurality of diagonally-arranged frames are arranged at appropriate intervals between edge members made of threading materials provided at the outer wall edge portions of the clearance C set between the buildings A and B facing each other. Is a movable arm that is slidable against the edge material,
A catch pan carried by the movable arm and always held in the center of the clearance C, and at least two parts on the catch pan, and the other ends fixedly attached to the edges of buildings A and B via spring hinges Decorative covers, a plurality of pulleys arranged with an arbitrary pitch on one end side of each of the decorative cover dividing portions, guide rails provided on the other decorative cover end portions facing the pulleys, the division Stretchable slide rail that has an arbitrary pitch and is composed of an outer rail and an inner rail installed on the back of each decorative cover,
Fastening means such as screws for fixing the outer rail of the slide rail to the decorative cover, ball casters provided at the end portions of the inner rail of the slide rail, and catch pans for the ball casters with the spring hinges When the clearance C contracts due to an earthquake or the like, the expansion joint including the decorative cover is in contact with the guide rail. By moving up each other, it is possible to follow the contraction of the clearance C, and when the clearance C is widened, a gap is formed in the divided portion of the decorative cover, and it is possible to move and follow the spread of the clearance C.

  Thus, according to the present invention, with the above configuration, even when the outer walls of the buildings A and B facing each other are in the same plane shape and in the case of the outer wall corner shape, the edge material and It is possible to realize a new configuration that can accommodate an expansion joint made of a decorative cover material, and this configuration installs an expansion joint in the clearance C that is the same surface as the outer wall surface (i.e., the surface) or a chamfered surface. In addition, when the clearance C is increased to 1000 to 1600 mm, the expansion joint can be installed in the place where the set-back is further on the inner side than the outer wall surface rather than the beveled shape. The design of the joint is a wide expansion joint decorative cover made of metal plate, etc. To eliminate the drawbacks that has been ruined, could be provided wider exterior wall expansion joint having excellent design property.

  Further, in the present invention, the decorative cover of the expansion joint mounted between the buildings A and B facing each other is divided into at least two on the catch pan installed in the clearance C, and the other ends are the buildings A and B. A plurality of catch pans are obliquely mounted at appropriate intervals between edge members made of threading material provided on the outer wall edge of each building A and B. Both ends are supported by movable arms that are slidable with respect to the edge member, and the catch pan can be configured to drain rainwater that enters from the dividing portion of the decorative cover by flowing downward.

  And the other end of each of the cosmetic covers divided into at least two parts on the catch pan is fixed to the edge of the clearance C of the outer wall of the buildings A and B through hinges, so that the wide and heavy decorative cover is provided. Can be made into divided parts, and this configuration makes the installation work at high places efficient.

  Furthermore, the present invention is another embodiment of the movable arm that supports the catch pan, and the present invention is configured such that the movable arm is composed of a telescopic arm, and one end is attached to the edge of each of the buildings A and B. A configuration is proposed in which the buildings A and B facing each other are attached via universal joints that can respond to the left, right, up and down, and front and back movements.

  Thus, according to the present invention, a plurality of telescopic slide rails each having an outer rail and an inner rail are provided on the back surface of the divided decorative cover, each having an arbitrary pitch, The decorative cover is fixed to the rail with screws or the like, and the inner rail of the slide rail is placed in contact with the edge of the catch pan supported by the movable arm, and the slide rail is placed on the catch pan. The decorative cover that can be slid through is configured so that the pulley provided at an arbitrary pitch on the divided mating portion of the shape that abuts obliquely with each other is in contact with the guide rail provided on the mating portion facing, When the clearance C is contracted, the divided and joined portions of the decorative cover are lifted from both sides so that the clearance C is within the clearance C. It was clearly specific mechanisms can follow movable contraction in Aransu C.

  With the above configuration, even if the outer walls of buildings A and B facing each other are on the same plane, and in the case of the outer wall corner shape, an expansion joint made of an edge material or a decorative cover material is placed in clearance C. It consists of a decorative edge material fixed to the edge material and a decorative cover sandwiched at both ends by the decorative edge material, like the conventional expansion joint, and the expected extended portion overlaps in the decorative edge material. The expansion joint having a wide clearance C is not required, and a configuration having a clearance gap in the decorative margin material that holds the decorative cover at both ends so that the clearance C can be contracted is also eliminated. When implemented, it became a remarkable effect. .

  Therefore, if the clearance C is increased, the width of the decorative cover serving as the plugging material is increased, and the conventional disadvantage that the width of the decorative edge material having the stretchable portion of the decorative cover is also increased can be eliminated. However, it became the structure which comprises the width itself of an outer wall expansion joint.

  Furthermore, the present invention provides the other end of each decorative cover so that the inner rail of the slide rail is brought into contact with the catch pan by a ball caster, and the respective decorative cover having the slide rail on the back surface is not crushed by wind pressure or the like. Proposed that it was fixed to the edges of buildings A and B via spring hinges at an appropriate pitch, and the inner rail of the decorative cover was always pressed against the catch pan.

  In the configuration in which the decorative cover is pressed against the catch pan by the spring hinge so that the decorative cover is beaten by wind pressure or the like and no sound is generated, the conventional expansion joint pulls the decorative cover or the like and tensions the coil spring. In addition to simplifying the work in several steps compared to the one that was aimed for the same effect, the tension spring tensioning hinders the installation of the water stop auxiliary seat and fireproof zone, and improves the work efficiency I was able to greatly improve what was wrong.

  Thus, the present invention provides a wide metal material as in the conventional type, such as tiled or stoned outer wall in an expansion joint for an outer wall such as a seismic isolation building having a wide clearance C. When the outer walls of the buildings A and B facing each other are on the same plane without the appearance of the decorative cover formed in the form of a vertical belt-shaped expansion joint protruding from the outer wall, and the corner of the outer wall Even in the case of a shape, it is possible to realize a new configuration in which an expansion joint made of an edge material and a decorative cover material can be accommodated in the clearance C, and the configuration is the same as the outer wall surface in the clearance C. If the surface (menzoro) or surface drop (menochi) and the clearance C increase to 1000 to 1600 mm, the set on the inner side of the outer wall surface is further increased. Back to the position it is possible to construction a expansion joint, high external wall expansion joint designability which does not impair the design of the building could be provided.

  The present invention is particularly applied to the outer wall of a building, has a good workability, and can safely hold a decorative cover material, and can move the decorative cover material smoothly against temporary deformation such as an earthquake. An expansion joint with a movable mechanism that can follow the shaking and does not damage the building or expansion joint is provided.

  Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 11 show an example in which the present invention is applied to an expansion joint. FIG. 1 is an explanatory perspective view, FIG. 2 is an explanatory perspective view of an outer wall corner, and FIG. 3 is a cross-sectional view showing the overall configuration of the present invention. 4 and 5 are plan sectional views showing the arrangement of movable arms serving as a catch pan support mechanism, FIG. 6 is a front view showing the relationship between the decorative cover, the slide rail and the catch pan, and FIG. 7 is the decorative cover mating portion. FIG. 8 is an explanatory view of a spring hinge for fixing the decorative cover and slide rail to the outer walls of buildings A and B. FIGS. 9 to 11 show how the expansion joint of the present invention responds to fluctuations in clearance. It is an operation | movement explanatory drawing explaining how it operate | moves like.

1 and 2, the outer wall surfaces 1 and 2 between the buildings A and B facing each other have a clearance C, and the edge members 3 and 4 are provided to face each other. Decorative covers 5 and 6 are disposed on the upper portions 3 and 4, respectively, and are fixed to the outer wall surfaces 1 and 2.
Reference numeral 7 denotes a catch pan, and 8 denotes a water stop auxiliary sheet.

  Thus, FIG. 1 shows that the outer wall surfaces 1 and 2 between the buildings A and B are on the same surface through the clearance C, and the decorative surfaces of the decorative covers 5 and 6 of the expansion joint 9 of the present invention are the outer wall surfaces. It shows that it is attached in a state where the surface is lowered with respect to 1 and 2. Note that the expansion joint 9a indicated by an imaginary line is attached to the outer wall surfaces 1 and 2 at a position set back on the inner side of the outer wall.

  FIG. 2 shows a state in which the expansion joint 9b of the present invention is attached to the shape between the outer walls called the outer wall corner, and the decorative cover 5 of the expansion joint 9b attached in the clearance C. 6 shows a state in which the decorative surface is attached to the outer wall surface 2 on the same surface (i.e., the surface), and one end of the decorative cover 5 is in contact with the outer wall surface 1 perpendicularly.

  In FIG. 3, 1 and 2 are outer wall surfaces, 3 and 4 are edge members, 5 and 6 are decorative covers processed with aluminum or stainless steel plate, 7 is a catch pan, 8 is a water-stop auxiliary sheet made of soft PVC, Reference numeral 10 denotes a refractory zone made of ceramic fiber or the like.

  The decorative covers 5, 6 are arranged in a slanted manner with an appropriate interval between the edge members 3, 4 made of threading materials provided at the edges of the outer wall surfaces 1, 2, and both ends are edge members 3, 4 are divided into left and right on a catch pan 7 supported by movable arms 11a, 11b, 11c,... The spring hinges 12a, 12b, 12c..., 13a, 13b, 13c.

4 shows the arrangement of the movable arms 11a, 11b, 11c,... Between the edge members 3, 4 of the threading material provided at the edge of the outer wall surface 1, 2, as shown in FIG. A plurality of movable arms 11a, 11b, 11c,... Are formed with spherical slidable fittings 14 at both ends of the movable arms 11a, 11b, 11c. 14 are loosely fitted in circular grooves 15 formed in the edges 1 and 2, respectively, and the ends of the movable arms 11a, 11b, 11c,. Can be rotated and slid.
In FIG. 4, 16 indicates bolt positions for screwing the catch pan 7, 12a, 12b, 12c..., 13a, 13b, 13c. Shows an array of numbers.

  FIG. 5 shows another embodiment of the movable arms 11a, 11b, 11c..., And the movable arms 11a, 11b, 11c. It is a bolt position that supports the pan 7, and the two arms rotate around the bolt position 16, so that the expansion and contraction of the clearance C can be followed.

  The shape of the movable arms 11a, 11b, 11c,... Is also mounted between the edge portions 1 and 2 with the arm body as a telescopic structure, and the fitting portion with the edge portions 1 and 2 is a universal joint. There is a method such as fitting through.

Thus, the rotation and sliding mechanism of the decorative covers 5 and 6 divided into at least two parts on the catch pan 7 will be described with reference to FIGS. 3 and 6 and a partially enlarged view of FIG.
On the rear surfaces of the divided decorative covers 5 and 6, slide rails 19 a, 19 b, 19 c... That can be expanded and contracted by a combination of two rails including an outer rail 17 and an inner rail 18 have an arbitrary pitch. A plurality of them are installed.

  The decorative covers 5 and 6 are fixed to the outer rails 17 of the slide rails 19a, 19b, 19c... By screws 20a, 20b, 20c, 20d and the like in the final step of the mounting operation. The joint has a configuration in which the decorative covers 5 and 6 can be easily removed at a later date, and maintenance is easy.

  Thus, the inner rails 18 of the slide rails 19a, 19b, 19c... Slide on the catch pans 7 supported by the movable arms 11a, 11b, 11c. Although the inner rail 18 and the outer rail 17 are smoothly slid, the movement of the decorative covers 5 and 6 mounted on the slide rails 19a, 19b, 19c. It is smooth and can fully follow the expansion and contraction of the clearance C.

  The slidable decorative covers 5, 6 facing each other on the catch pan 7 through the slide rails 19 a, 19 b, 19 c,. 24, and the mating portion 23 is provided with pulleys 25a, 25b, 25c,... Arranged at an arbitrary pitch, and the mating portion 24 facing the pulleys 25a, 25b, 25c. Are provided with guide rails 26 of pulleys 25a, 25b, 25c. In addition, since the mating portions 23 and 24 are in contact with each other at an angle as described above, a gap that can be seen through the inside or outside is not usually created.

  Thus, the decorative covers 5 and 6 divided substantially at the center can smoothly slide back and forth and left and right by the action of the slide rails 19a, 19b, 19c... And the clearance C contracts due to an earthquake or the like. In this case, pulleys 25 a, 25 b, 25 c... Provided on the divided mating portion 23 of the decorative cover plate 5 abut against the guide rail 26 of the mating portion 24 so that the decorative covers 5 and 6 are mutually connected. As it is raised, it can move following the contraction of clearance C. FIG. 7 shows an enlarged view of the relationship between the pulley 25a and the guide rail 26 in the raised state.

  Further, when the clearance C increases due to an earthquake or the like, the tip end portions of the inner rails 18 that are appropriately arranged protrude and slide at a certain pitch in the divided mating portions 23 and 24, and the sliding is performed. The ball casters 21 and 22 provided at the front ends of the inner rail 18 are slid smoothly on the catch pan 7, and a gap is formed between the divided mating portions 23 and 24 to follow the spread of the clearance C. It can move. The ball casters 21 and 22 may be fixed in the vertical direction using a magnet catcher, and the tip end of the inner rail 18 may be fixed in a normal state and slid only in the lateral direction. .

  Further, in the present invention, the inner rails 18 of the slide rails 19a, 19b, 19c... Are brought into contact with the catch pan 7, and the decorative covers 5, 6 integrated with the slide rails 19a, 19b, 19. The slide rails are fixed to the edges of the outer wall portions 1 and 2 of the buildings A and B through the spring hinges 12 and 13 at an appropriate pitch so as not to generate wind noise. The inner rail 18 is configured to be pressed on the catch pan 7 by the force of the spring hinges 12 and 13.

  FIG. 7 shows an example of the shape of the spring hinges 12, 13, etc. The spring hinges 12, 13 are provided with contact plates 28, 29 that can rotate with respect to the shaft 27. It is formed by a coil spring 30 that restricts the movement of.

9 to 11 are operation explanatory views illustrating how the expansion joint according to the present invention operates in response to a change in clearance.
9 to 11, the same reference numerals as those in FIG. 3 denote the same components. In FIG. 3, the clearance C between the buildings A and B is set, and the expansion joint is dropped into the clearance C. The cross-sectional shape of the normal state installed in the state is shown.

  FIG. 9 shows the operation of the decorative covers 5 and 6 when the clearance C is extremely narrow due to temporary deformation such as an earthquake. The expansion joint including the decorative covers 5 and 6 contracts the clearance C. The divided cover parts 23 and 24 of the two divided cover parts 5 and 6 rise up to each other, thereby following the clearance C contraction, and the decorative covers 5 and 6 are not damaged.

FIG. 10 shows the operation of the decorative covers 5 and 6 when the clearance C is extremely widened. The outer rail 17 and the inner rail 18 of the slide rails 19a, 19b, 19c... Extend. In particular, the inner rail 18 protrudes from the distal end portion of the inner rail 18 appropriately disposed in the divided mating portions 23 and 24. Since the inner rail 18 slides, a gap is generated between the divided mating portions 23 and 24 so that the clearance C can be expanded.
At this time, the decorative covers 5 and 6 are separated from each other, but since the catch pan 7 is interposed inside, the catch pan 7 is interposed inside the gap and is blindfolded. I can't see through.

FIG. 11 shows the operation when the outer wall surfaces 1 and 2 of the buildings A and B are shaken back and forth.
For this movement, the edge members 3, 4 that support the movable arms 11a, 11b, 11c... At both ends follow the aluminum hinge 31 formed of an aluminum shape, and the decorative covers 5, 6 The slide rails 19a, 19b, 19c,... Follow and rotate with spring hinges 12, 13, and the like.

  Thus, in the present invention, when the outer wall surfaces 1 and 2 between the buildings A and B facing each other are configured on the same surface with the same wall surface via the set clearance C, the clearance C In providing the expansion joint for the outer wall and the decorative covers 5 and 6 for the expansion joint, the decorative covers 5 and 6 for the expansion joint are formed into at least two divided shapes. An expansion joint including a decorative cover 5, 6 having a decorative surface attached to the outer wall surfaces 1, 2 between the buildings A and B. If the clearance C contracts due to an earthquake or the like, both of them rise at the divided joining portions 23 and 24 of the decorative covers 5 and 6 divided into at least two. Provided an expansion joint for the outer wall that follows the clearance C contraction, and when the clearance C widens, a gap is formed in the divided mating portions 23 and 24 of the decorative covers 5 and 6 to follow the clearance C expansion. .

  For example, the decorative cover is divided into three parts, and the decorative cover positioned on both sides presses the decorative cover positioned in the middle to lift the decorative cover in the middle to cope with the contraction of the clearance C. is there.

  In addition, the present invention can be applied to an expansion joint for an outer wall to produce the best effect, but can also be used for an expansion joint for an inner wall or a roof to produce a remarkable effect.

In the present invention, the outer walls 1 and 2 between the buildings A and B facing each other form an outer wall corner shape and have a clearance C set in the outer wall corner portion.
In providing the outer wall expansion joint and the expansion joint decorative cover 5, 6 in the clearance C, the expansion joint decorative cover is formed into at least two divided shapes, and the divided decorative cover 5, One end of 6 is abutted perpendicularly to the outer wall surface 1 and the other end is attached to the outer wall surface 2 of the building with the decorative surface of the decorative cover being the same surface or being dropped or set back. When the clearance C contracts due to an earthquake or the like, the expansion joint including the decorative covers 5 and 6 follows up the contraction of the clearance C by raising both of the divided joining portions 23 and 24 of the decorative cover divided into at least two. Movable,
There is provided an expansion joint for an outer wall having a wide clearance C that is movable so as to follow the spread of the clearance C by generating a gap in the divided mating portions 23 and 24 of the decorative cover plates 5 and 6 when the clearance C is widened. .

It is a perspective explanatory view showing one example of the present invention. It is a perspective explanatory view showing one example of the present invention. It is a section explanatory view showing the composition of the present invention. It is a top view which shows the arrangement | sequence of a movable arm. It is explanatory drawing which shows the other Example of a movable arm. It is a top view explaining the arrangement | positioning condition of a slide rail. It is an enlarged explanatory view showing a fitting part of the decorative cover. It is shape explanatory drawing of a spring hinge. It is operation | movement explanatory drawing of this invention. It is operation | movement explanatory drawing of this invention. It is operation | movement explanatory drawing of this invention. It is a perspective view explaining a prior art example It is a perspective view explaining a prior art example.

Explanation of symbols

A building
B Building
C Expansion joint clearance 1 Outer wall surface 2 Outer wall surface 3 Edge material 4 Edge material 5 Cosmetic cover 6 Cosmetic cover 7 Catch pan
8 Water stop assisting sheet 9 Expansion joint 10 Fire-resistant belts 11a, 11b, 11c ... Movable arms 12a, 12b, 12c ... Spring hinges 13a, 13b, 13c ... Spring hinges 14 Spherical fitting 15 Circular groove 16 Bolt position 17 Outer rail 18 Inner rail 19a, 19b, 19c ... Slide rail 20a, 20b, 20c, 20d Screw 21 Ball caster 22 Ball caster 23 Divided mating part 24 Divided mating part 25a, 25b, 25c ... pulley 26 guide rail 27 shaft 28 against plate 29 against plate 30 coil spring 31 aluminum hinge

Claims (4)

A plurality of frames are diagonally arranged with appropriate spacing between the edge members made of threading material provided at the outer wall edge of the clearance C set between the buildings A and B facing each other, and both ends are opposed to the edge material Slidable movable arm,
A catch pan carried by the movable arm and always held in the center of the clearance C, and at least two parts on the catch pan, and the other ends fixedly attached to the edges of buildings A and B via spring hinges Cosmetic cover,
A plurality of pulleys arranged at an arbitrary pitch on one end side of each of the decorative cover dividing portions;
A guide rail provided on the other end portion of the decorative cover facing the pulley,
An extendable slide rail having an arbitrary pitch and an outer rail and an inner rail installed on the back of each of the divided decorative covers,
Fastening means such as screws for fixing the outer rail of the slide rail to the decorative cover,
A ball caster provided at each end of the inner rail of the slide rail,
The ball caster is configured to press and contact the catch pan with the spring hinge,
The expansion joint including the decorative cover plate has clearance C due to an earthquake, etc.
When the belt contracts, the pulleys provided in the divided part of the decorative cover divided into at least two parts are brought into contact with the guide rails and are lifted up to move to follow the clearance C contraction.
A wide expansion joint for a seismic isolation building characterized in that when the clearance C is widened, a gap is generated in the divided portion of the decorative cover plate, and the movable cover follows the clearance C. The outer wall between buildings A and B facing each other forms an outer wall corner shape,
When the outer wall corner portion has the clearance C set, the edge made of a threading material provided at each outer wall edge portion of the clearance C set between the buildings A and B facing each other A movable arm with a plurality of slanted frames arranged at appropriate intervals between the materials and having both ends slidable with respect to the edge material,
A catch pan carried by the movable arm and always held in the center of the clearance C, and at least two parts on the catch pan, and the other ends fixedly attached to the edges of buildings A and B via spring hinges Cosmetic cover,
A plurality of pulleys arranged at an arbitrary pitch on one end side of each of the decorative cover dividing portions;
A guide rail provided on the other end portion of the decorative cover facing the pulley,
An extendable slide rail having an arbitrary pitch and an outer rail and an inner rail installed on the back of each of the divided decorative covers,
Fastening means such as screws for fixing the outer rail of the slide rail to the decorative cover,
A ball caster provided at each end of the inner rail of the slide rail,
The ball caster is configured to press and contact the catch pan with the spring hinge,
The expansion joint including the decorative cover has clearance C due to an earthquake, etc.
When the belt contracts, the pulleys provided in the divided part of the decorative cover divided into at least two parts are brought into contact with the guide rails and are lifted up to move to follow the clearance C contraction.
A wide expansion joint for a seismic isolation building characterized in that when the clearance C is widened, a gap is generated in the divided portion of the decorative cover plate, and the movable cover follows the clearance C.
The decorative cover of the expansion joint mounted between the buildings A and B facing each other is divided into at least two parts on the catch pan installed in the clearance C, and the other end is a spring cut at the edge of the buildings A and B. Fixed through the number,
The rainwater entering from the dividing portion of the decorative cover has a dredging function for receiving and draining the rainwater to the lower portion with a catch pan provided on the back surface portion of the decorative cover. Wide expansion joint for base-isolated buildings as described. When the movable arm is a telescopic arm and one end is attached to each edge of the buildings A and B,
3. The base-isolated building according to claim 1 or 2, wherein the base-isolated building is attached to an edge of the outer wall surface through a universal joint capable of responding to left, right, up and down, and front and rear movements of the buildings A and B facing each other. Wide expansion joint.

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