JP5366205B2 - Fixed part with trigger function and seismic isolation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a user-friendly fixing part with a trigger function having a simple mechanism and broken by designed force, and provide a base isolation device facilitating manufacturing by using the fixing part with the trigger function and improving base isolation performances by making base isolation start with the designed force. <P>SOLUTION: This fixing part 10 with the trigger function is formed as one body from a plate body under a condition where a first attachment part 11, a connection fixing part 12, and a second attachment part 13 are arranged in an order. Thickness in a view from a plate body side surface is thin and width of the connection fixing part 12 in a view from a plate body front surface is thinner than width of the first attachment part 11 and the second part 13. This type of the fixing part with the trigger function is used in the base isolation device. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a fixed part with a trigger function that unlocks when a predetermined force is exceeded, and a seismic isolation device equipped with the fixed part with a trigger function.

As a conventional seismic isolation device, for example, an invention described in Patent Document 1 (Japanese Patent Laid-Open No. 2000-17891, title of invention “Seismic Isolation Device”) is known.
In the prior art described in Patent Document 1, a trigger mechanism having a round bar shape and having a small diameter portion is attached to the seismic isolation device, and the trigger mechanism does not break when the vibration applied to the seismic isolation device is equal to or less than a set force. However, if the vibration applied to the seismic isolation device exceeds the set force, the small-diameter portion of the trigger mechanism breaks and starts the seismic isolation operation.

JP 2000-17891 A (paragraph number [0014], FIG. 1)

However, since the seismic isolation device described in Patent Document 1 is a trigger mechanism that has a round bar shape and a small-diameter portion as described above, for example, in a central arrangement on a circular seismic isolation device. There was a limit.
Moreover, since the trigger mechanism described in Patent Document 1 is arranged inside the seismic isolation device, there is a problem that it is not easy to attach.
Furthermore, the trigger mechanism described in Patent Document 1 has a problem in that a thin diameter portion is formed on a round bar, which requires a lot of work.
Furthermore, the trigger mechanism described in Patent Document 1 has a problem that an increase in the trigger mechanism is unavoidable because the narrow-diameter portion increases when the force for starting the trigger is increased.

Therefore, the present invention has been made in view of the above-described problems, and an object thereof is to provide a fixing portion with a trigger function that is a simple mechanism and is easy to use so as to be broken by a designed force. It is in.
It is another object of the present invention to provide a seismic isolation device that is easy to manufacture using the fixed portion with a trigger function and that has improved seismic isolation performance by starting seismic isolation with a force as designed.

The fixing part with a trigger function according to claim 1 of the present invention is:
A first mounting portion fixed to the upper base isolation frame of the base isolation device;
A connection fixing part integrally connected to the first attachment part;
A second mounting portion that is integrally connected to the connection fixing portion and is fixed to the lower base isolation frame of the base isolation device;
A fixed portion with a trigger function that is integrally formed from a single plate in a state of being arranged in the order of the first mounting portion, the connection fixing portion, and the second mounting portion,
The first mounting portion, the connection fixing portion, and the second mounting portion are thin when viewed from the side of the plate body ,
Before SL connecting the fixed portion, the width when viewed from the plate body front formed thinner than the width of the first mounting portion and the second mounting portion,
The first mounting portion and the second mounting portion is characterized that you are formed long hole fixing screws on at least one is inserted, and the circular hole and the other to the fixing screw is inserted is formed.

Moreover, the fixed part with a trigger function according to claim 2 of the present invention is:
In the fixing part with a trigger function according to claim 1,
The trigger function fixing part, a front has a substantially Engineering-shape, and characterized Rukoto whose sides have a linear shape.

Moreover, the fixed part with a trigger function according to claim 3 of the present invention is:
A first mounting portion fixed to the upper base isolation frame of the base isolation device;
A connection fixing part integrally connected to the first attachment part;
A second mounting portion that is integrally connected to the connection fixing portion and is fixed to the lower base isolation frame of the base isolation device;
A fixed portion with a trigger function that is integrally formed from a single plate in a state of being arranged in the order of the first mounting portion, the connection fixing portion, and the second mounting portion,
The first mounting portion, the connection fixing portion, and the second mounting portion are thin when viewed from the side of the plate body,
The connection fixing portion is formed so that the width when viewed from the front of the plate body is thinner than the width of the first attachment portion and the second attachment portion, and
When the first attaching part or the second attaching part is inserted into the upper and lower holes provided in the upper seismic isolation frame and the lower seismic isolation frame of the seismic isolation device, respectively, when the fixing part with a trigger function is inserted. It is characterized by being located in both holes .

Moreover, the fixed part with a trigger function according to claim 4 of the present invention is:
In the fixed part with a trigger function according to claim 3 ,
It is secured to the first mounting portion, and wherein the Rukoto includes a securing portion secured to the upper seismic isolation mount.

Moreover, the fixed part with a trigger function according to claim 5 of the present invention is:
In the fixed part with a trigger function according to claim 3 or claim 4,
The trigger function fixing part, a front has a substantially Engineering-shape, and characterized Rukoto whose sides have a substantially L-shape.

The seismic isolation device according to claim 6 of the present invention provides:
An upper base frame,
A lower base is fixed to the ground or floor and supports the upper base to move horizontally;
A plurality of fixing parts with a trigger function according to any one of claims 1 to 5, wherein the upper base isolation frame and the lower base isolation frame are connected and fixed at these side surfaces,
The fixed part with multiple trigger functions suppresses the movement of the upper base isolation frame when a force less than a predetermined force is applied, and the fixed parts with multiple trigger functions are connected when a force exceeding the predetermined force is applied The fixed part breaks, and the upper base isolation frame is moved to perform base isolation.
And wherein a call.

According to the present invention, it is possible to provide an easy-to-use fixing portion with a trigger function that is a simple mechanism and breaks with a designed force.
In addition, it is possible to provide a seismic isolation device that is easy to manufacture using the fixed portion with the trigger function and that has improved seismic isolation performance by starting isolation with the force as designed.

It is explanatory drawing of the fixing part with a trigger function of the form for implementing this invention, Fig.1 (a) is a front view, FIG.1 (b) is a side view. It is explanatory drawing of the seismic isolation device of the form for implementing this invention, FIG. 2 (a) is a top view of a normal type seismic isolation device, FIG.2 (b) is a side view of a normal type seismic isolation device. is there. It is explanatory drawing explaining the attachment to the horizontal direction seismic isolation apparatus of a fixing part with a trigger function, Fig.3 (a) is explanatory drawing of arrangement | positioning of a spacer, FIG.3 (b) is description of arrangement | positioning of a fixing part with a trigger function. FIG. 3 and FIG. 3C are explanatory diagrams for fixing the fixing portion with the trigger function. It is explanatory drawing of the seismic isolation apparatus of the form for implementing this invention, Fig.4 (a) is a top view of a large sized seismic isolation apparatus, FIG.4 (b) is a side view of a large sized seismic isolation apparatus. It is explanatory drawing of the fixing part with a trigger function of the other form for implementing this invention, Fig.5 (a) is a front view, FIG.5 (b) is a side view. It is explanatory drawing of a stopper metal fitting, FIG. 6 (a) is a top view, FIG.6 (b) is a front view, FIG.6 (c) is a side view. It is explanatory drawing of the seismic isolation apparatus of the other form for implementing this invention, Fig.7 (a) is a top view of a normal type seismic isolation device, FIG.7 (b) is a side view of a normal type seismic isolation device FIG. It is explanatory drawing explaining the attachment to the horizontal direction seismic isolation apparatus of a fixing part with a trigger function, FIG. 8 (a) is explanatory drawing of the state before attachment of a fixing part with a trigger function, FIG.8 (b) is with a trigger function. It is explanatory drawing of the attachment state of a fixing | fixed part. It is explanatory drawing of the seismic isolation apparatus of the form for implementing this invention, Fig.9 (a) is a top view of a large sized seismic isolation apparatus, FIG.9 (b) is a side view of a large sized seismic isolation apparatus. It is explanatory drawing of the fixing | fixed part with a trigger function of the other form for implementing this invention, Fig.10 (a) is a front view, FIG.10 (b) is a side view. It is explanatory drawing of the fixing | fixed part with a trigger function of the other form for implementing this invention, Fig.11 (a) is a front view, FIG.11 (b) is a side view.

Subsequently, a fixing unit with a trigger function according to an embodiment for carrying out the present invention will be described below with reference to the drawings. As shown in FIGS. 1A and 1B, the fixing portion 10 with the trigger function according to the present embodiment includes a first attachment portion 11, a connection fixing portion 12, and a second attachment portion 13.
In addition, as shown in FIGS. 2A and 2B, the seismic isolation device 100 of this embodiment includes a plurality of fixed portions 10 with trigger functions and a horizontal seismic isolation device 20. A plurality of fixed portions 10 with a trigger function are installed and fixed on the side surface.

Next, each configuration will be described. First, the structure of the fixed part 10 with a trigger function is demonstrated.
As shown in FIG. 1A, the first attachment portion 11 is a substantially rectangular member, and is a portion that is fixed to the upper seismic isolation frame 21 (see FIGS. 2 and 3) of the horizontal seismic isolation device 20. is there. Near the center, a substantially rectangular long hole 11a is formed through which the fixing screw 40 (see FIG. 3) is inserted into the upper seismic isolation frame 21 of the horizontal seismic isolation device 20.
The connection fixing part 12 is a member that connects the first attachment part 11 and the second attachment part 13, and is a rectangular member.
The 2nd attachment part 13 is a substantially rectangular member, and is a part fixed to the lower side seismic isolation stand 22 (refer FIG. 2, FIG. 3) of the horizontal direction seismic isolation apparatus 20. As shown in FIG. In the vicinity of the center, a circular hole 13a is formed through which the fixing screw 40 (see FIG. 3) is inserted into the lower seismic isolation frame 22 of the horizontal seismic isolation device 20.

  Such a fixing part 10 with a trigger function is integrally formed from a single plate made of synthetic resin or metal, and in the order of the first attachment part 11, the connection fixing part 12, and the second attachment part 13. It will be in the state arranged in one. As shown in FIG. 1B, the first mounting portion 11, the coupling fixing portion 12, and the second mounting portion 13 as described above are thinly formed with the same thickness t on the side surface of the plate body. ing. Further, the connecting and fixing portion 12 is formed so that the lateral width b is thinner when viewed from the front than the lateral width a of the first mounting portion 11 and the second mounting portion 13. Further, when viewed from the front, the length of the vertical side is formed so that the portion having the same cross-sectional area becomes long. Because of such a structure, when a shearing force is applied to the first attachment portion 11 and the second attachment portion 13, a force is applied to the connection fixing portion 12 so that it is easily broken.

  When viewed from the front as shown in FIG. 1A, the front portion of the fixing portion 10 with the trigger function has a substantially letter-shaped shape. Moreover, when the fixing part 10 with a trigger function is viewed from the side as shown in FIG. 1B, the shape of the side has a linear shape.

  In the manufacturing method of the fixing part 10 with the trigger function having such a shape, a single rectangular plate having an appropriate size is prepared, and the side surfaces on both sides of the connecting fixing part 12 are prepared on the single rectangular plate. If the member is cut out to form the cutout portion 12a, the first attachment portion 11, the connection fixing portion 12, and the second attachment portion 13 are integrally formed. Then, a long hole 11a and a circular hole 13a are formed and completed. For example, it is formed by cutting or the like. The long hole 11a, the notch 12a, and the circular hole 13a may be simultaneously formed by punching and punching. Moreover, you may form without cutting etc. by casting or resin using a type | mold.

  Next, the seismic isolation device 100 using such a fixing unit 10 with a trigger function will be described with reference to the drawings. As shown in FIGS. 2A and 2B, the seismic isolation device 100 of this embodiment includes a plurality of fixed portions 10 with trigger functions and a horizontal seismic isolation device 20, and is provided on a side surface of the horizontal seismic isolation device 20. A plurality of fixed portions 10 with a trigger function are installed and fixed. The horizontal seismic isolation device 20 further includes an upper seismic isolation base 21 and a lower seismic isolation base 22.

  The upper seismic isolation frame 21 is a table on which a seismic isolation target 1 such as a server (an imaginary line portion indicated by a one-dot chain line in FIG. 2) is arranged. Specifically, the two table units 211 and these two table units. And a connecting beam portion 212 that connects the two members 211 to each other. An opening 213 is provided in the center, and weight reduction is achieved.

  Specifically, the lower base isolation frame 22 includes two base portions 221 and a connecting beam portion 222 that connects the two base portions 221. An opening 223 is provided in the center, and weight reduction is achieved. The lower surface of the lower base isolation frame 22 is fixed to the ground (floor surface), and the lower base isolation frame 22 is supported so as to move the upper base isolation frame 21 in the horizontal direction. For example, the upper seismic isolation frame 21 may be movable over a fixed distance in the X direction and the Y direction shown in FIG. .

  A plurality of fixing portions 10 with a trigger function are fixed to the side of the horizontal seismic isolation device 20. A total of four are arranged, two on each of the upper and lower sides in FIG.

Next, an operation of configuring the seismic isolation device 100 by attaching the fixing portion 10 with the trigger function to the horizontal seismic isolation device 20 will be described. As shown in FIG. 3A, the spacers 30 are respectively arranged so as to match the screw holes of the upper base isolation frame 21 and the lower base isolation frame 22. Note that the spacer 30 is not an essential component, and for example, a side shape that does not require the spacer 30 may be adopted. Then, as shown in FIG. 3 (b), the fixing portion 10 with the trigger function is arranged on the surface of the spacer 30, and as shown in FIG. 3 (c), the fixing screw 40 is inserted into the long hole 11a or the circular hole 13a. Then, the fixing part 10 with the trigger function is connected and fixed between the upper base isolation frame 21 and the lower base isolation frame 22 by screw fastening. And such attachment is performed over several places (this embodiment four places).
The seismic isolation device 100 is like this.

  In such a seismic isolation device 100, when a force equal to or less than a predetermined force is applied to the upper seismic isolation frame 21, the plurality of fixed portions 10 with a trigger function suppress the movement of the upper seismic isolation frame 21. Even if the fixed part 10 with the trigger function moves slightly together with the upper base isolation frame 21, the elongated hole 11 a moves to avoid immediate release of the fixed part 10 with the trigger function by the fixing screw 40. The movement of the upper seismic isolation frame 21 is suppressed. Then, when a force exceeding a predetermined force is applied to the upper seismic isolation frame 21, the fixing screw 40 comes into contact with the end of the long hole 11a and the movement of the fixing portion 10 with the trigger function is constrained by the fixing screw 40. Further force is applied, especially the connection fixing part 12 of all the fixing parts 10 with the trigger function is broken, the restriction is completely released, and the upper base isolation frame 21 is moved to perform the base isolation. The seismic isolation operation by the seismic isolation device 100 is as described above.

  In the above, the fixed part 10 with a trigger function and the seismic isolation apparatus 100 of this form were demonstrated. Various modifications other than the present embodiment are possible. For example, the fixing part 10 with the trigger function described above is attached to a large horizontal seismic isolation device 20 having four bases 211 in the horizontal direction as shown in FIGS. The seismic isolation device 100 may be used. In this case, you may make it attach the fixing part 10 with a trigger function by increasing a number suitably.

  2 and 4, it has been described that four pieces are arranged on each of the upper and lower sides as moving in the X direction, but the horizontal seismic isolation device 20 is in the X direction and the Y direction. It is also possible to adopt a configuration in which a total of eight are arranged, two on each of the upper and lower sides, and four on each of the left and right sides. Thereby, it restrains so that it may not move in both the left-right and up-down directions.

  The fixed part 10 with the trigger function has the first attachment part 11 attached to the upper seismic isolation frame 21 and the second attachment part 13 attached to the lower seismic isolation frame 22. May be attached to the lower base isolation frame 22 and the second mounting portion 13 may be attached to the upper base isolation frame 21. Or the form which combined these deformation forms suitably may be sufficient. Such a seismic isolation device 100 may be used.

Next, another embodiment of the fixing unit with a trigger function for carrying out the present invention will be described below with reference to the drawings. As shown in FIGS. 5A and 5B, the fixing portion 50 with the trigger function according to the present embodiment includes a first attachment portion 51, a connection fixing portion 52, a second attachment portion 53, and a locking portion 54. .
In addition, as shown in FIGS. 7A and 7B, the seismic isolation device 200 of this embodiment includes a plurality of fixing portions 50 with a trigger function, stopper fittings 60 (see FIG. 6), and the horizontal seismic isolation device 20. A plurality of fixing portions 50 with a trigger function are installed and fixed on the side surface of the horizontal seismic isolation device 20.

Next, each configuration will be described. First, the structure of the fixed part 50 with a trigger function is demonstrated.
As shown in FIG. 5A, the first attachment portion 51 is a substantially rectangular member, and is a portion that is fixed to the upper seismic isolation frame 21 (see FIGS. 7 and 8) of the horizontal seismic isolation device 20. is there.
The connection fixing part 52 is a member that connects the first attachment part 51 and the second attachment part 53, and is a rectangular member.
The 2nd attachment part 53 is a substantially rectangular member, and is a part fixed to the lower seismic isolation stand 22 (refer FIG. 7, FIG. 8) of the horizontal direction seismic isolation apparatus 20. As shown in FIG.
The locking portion 54 is connected to the first mounting portion 51 in a state of being bent by about 90 ° when viewed from the side.

  Such a fixing part 50 with a trigger function is integrally formed from a single plate, and is integrally arranged in the order of the first attaching part 51, the connecting and fixing part 52, and the second attaching part 53. Become. As shown in FIG. 5B, the first mounting portion 51, the connection fixing portion 52, and the second mounting portion 53 as described above have the same width t when viewed from the side of the plate body. And thin. Further, the connection fixing portion 52 is formed so that the lateral width b is thinner when viewed from the front than the lateral width a of the first attachment portion 51 and the second attachment portion 53.

  When the fixing part 50 with a trigger function is viewed from the front as shown in FIG. 5A, the shape of the front has a substantially letter-shaped shape. Further, when the fixing portion 50 with the trigger function is viewed from the side as shown in FIG. 5B, the locking portion 54 is bent at about 90 °, so that the shape of the side surface is substantially L-shaped. Have.

  In the manufacturing method such as the fixing part 50 with the trigger function having such a shape, a single rectangular plate having an appropriate size is prepared, and both sides of the connection fixing part 52 are attached to the single rectangular plate. If the side member is cut out to form the cutout portion 52a, the first mounting portion 51 including the locking portion 54, the connection fixing portion 52, and the second mounting portion 53 are integrally formed. Then, the first attachment portion 51 including the engagement portion 54 is bent at a predetermined position, thereby forming and completing the engagement portion 54 that is integrally connected to the first attachment portion 51.

  As shown in FIG. 6A, the stopper fitting 60 has a concave portion 61 formed at the center, and has a hat-shaped flat surface. Further, as shown in FIG. 6B, holes 62 are provided on both sides for inserting and fixing the fixing screws 40. As shown in FIG. 8A, the stopper fitting 60 is fixed to the upper base isolation frame 21 and the lower base isolation frame 22 by two fixing screws 40, respectively.

  Next, the seismic isolation device 200 using such a fixing unit 50 with a trigger function will be described with reference to the drawings. As shown in FIGS. 7A and 7B, the seismic isolation device 200 according to this embodiment includes a plurality of fixing portions 50 with a trigger function, the horizontal seismic isolation device 20, and the stopper fitting 60, and the horizontal seismic isolation device. A plurality of fixing portions 50 with a trigger function are installed and fixed on the side surface of 20. The horizontal seismic isolation device 20 further includes an upper seismic isolation base 21 and a lower seismic isolation base 22.

  The upper seismic isolation base 21 is a base on which a seismic isolation target (not shown) such as a server is disposed. Specifically, the two base parts 211 and a connecting beam part 212 that connects the two base parts 211. And. An opening 213 is provided in the center, and weight reduction is achieved.

  Specifically, the lower base isolation frame 22 includes two base portions 221 and a connecting beam portion 222 that connects the two base portions 221. An opening 223 is provided in the center, and weight reduction is achieved. The lower surface of the lower base isolation frame 22 is fixed to the ground (floor surface), and the lower base isolation frame 22 is supported so as to move the upper base isolation frame 21 in the horizontal direction. For example, the upper seismic isolation frame 21 may be movable over a certain distance in the X direction and the Y direction shown in FIG. .

  A plurality of fixed portions 50 with a trigger function are fixed to the side of the horizontal seismic isolation device 20. Two in total, one on each of the upper and lower sides in FIG. Moreover, it arrange | positions so that the center may be crossed.

Next, an operation of configuring the seismic isolation device 200 by attaching the fixing unit 50 with the trigger function to the horizontal seismic isolation device 20 will be described. As shown in FIG. 8A, it is assumed that the stopper metal fittings 60 are vertically arranged on the upper base isolation frame 21 and the lower base isolation frame 22, respectively. In this case, an upper hole is formed by the upper base isolation frame 21 and the recess 61, and a lower hole is formed by the lower base isolation frame 22 and the recess 61. Then, as shown in FIG. 8 (b), the fixed portion 50 with the trigger function is disposed in the upper and lower two holes, the locking portion 54 is brought into contact with the upper seismic isolation frame 21, and the upper seismic isolation frame 21 and the lower The fixing part 50 with the trigger function is fixed between the side seismic isolation frame 22. At this time, the first attachment portion 51 contacts the upper hole portion, and the second attachment portion 53 contacts the lower hole portion. The fastening and fixing portion 52 does not contact any of them. And such attachment is performed over two or more places (this embodiment two places).
The seismic isolation device 200 is like this.

  In such a seismic isolation device 200, when a force equal to or less than a predetermined force is applied to the upper seismic isolation frame 21, the plurality of fixing portions 50 with a trigger function suppress the movement of the upper seismic isolation frame 21. Then, when a force exceeding a predetermined force is applied to the upper seismic isolation frame 21, particularly the connection fixing parts 52 of the plurality of fixing parts 50 with the trigger function are broken, and the upper seismic isolation frame 21 is moved to be isolated. The seismic isolation operation by the seismic isolation device 200 is like this.

  In the above, the fixed part 50 with a trigger function and the seismic isolation device 200 of this form were demonstrated. Various modifications other than the present embodiment are possible. For example, the fixing unit 50 with the trigger function described above is attached to a large horizontal seismic isolation device 20 having three bases 211 in the horizontal direction as shown in FIGS. The seismic isolation device 200 may be used. In this case, as shown in FIG. 9, the number of the fixing portions 50 with the trigger function may be appropriately increased to be attached so that a total of four fixing portions 50 on the upper and lower sides are arranged.

  7 and 9, it has been described that two are arranged on each of the upper and lower sides as one that moves only in the X direction, but both the upper and lower sides are assumed to move in the X and Y directions. It is good also as a structure arrange | positioned in total 2 each by 1 each, and a total of 2 by 1 each on both right and left sides. Thereby, it restrains so that it may not move in both the left-right and up-down directions. Such a seismic isolation device 200 may be used.

In the above embodiment, the fixing part 50 with the trigger function has been described as a rectangular connecting and fixing part. However, for example, like the fixing portion 70 with the trigger function shown in FIGS. 10A and 10B, the cut portion 73 may be provided and arranged in a biased state on one side of the main body portion 71. good.
Further, if the fixing portion 80 with the trigger function is formed of a material that is relatively easy to break even when there is no connection fixing portion, like the fixing portion 80 with the trigger function shown in FIGS. The portion 81 is broken and the trigger function as described above can be exhibited. Such a configuration may be adopted.

  Heretofore, the fixed portions 10 and 50 with the trigger function and the seismic isolation devices 100 and 200 of the present invention have been described. Since the fixing portions 10 and 50 with the trigger function according to the present invention are linear or substantially L-shaped on the side surfaces, as described above, they do not protrude even when the side surfaces are arranged, and the center to the circular seismic isolation device is eliminated. Of course, it can be arranged at various positions as in the aspect of the present invention.

  In addition, since the seismic isolation devices 100 and 200 using the fixing portions 10 and 50 with the trigger function according to the present invention have a side surface arrangement structure, the attachment becomes extremely easy and the assembly can be facilitated.

  Furthermore, since the fixing portions 10 and 50 with a trigger function of the present invention can be manufactured by cutting or bending using a metal or synthetic resin plate having appropriate hardness, the manufacturing can be facilitated.

  Furthermore, the fixing portions 10 and 50 with a trigger function can be designed easily because a predetermined force can be designed to be broken by the width b of the connecting and fixing portion with respect to the material and the width a of the attachment portion. Moreover, the magnitude of the predetermined force to break can also be changed by changing the number of the fixing portions 10 and 50 with the trigger function, and the design as the seismic isolation devices 100 and 200 is easy.

  Furthermore, since the fixed portions 10 and 50 with the trigger function have a small structure, the trigger mechanism can be downsized, and as a result, the seismic isolation devices 100 and 200 can be downsized.

In general, it is possible to provide an easy-to-use fixing portion with a trigger function that is a simple mechanism and breaks with a designed force.
In addition, it is possible to provide a seismic isolation device that is easy to manufacture using the fixed portion with the trigger function and that has improved seismic isolation performance by starting isolation with the force as designed.

  The present invention can be applied particularly to a fixed part with a trigger function and a seismic isolation device that realizes a significant cost reduction due to simplification of the structure and reduction of the number of parts.

1: Seismic isolation object 100: Seismic isolation device 10: Trigger function fixing part 11: First attachment part 11a: Long hole 12: Connection fixing part 12a: Notch part 13: Second attachment part 13a: Circular hole 20: Horizontal Direction seismic isolation device 21: upper base isolation frame 211: pedestal 212: connection beam portion 213: opening 22: lower side base isolation frame 221: base 222: connection beam portion 223: opening 30: spacer 40: fixing screw 50: Fixing part 51 with trigger function: 1st attachment part 52: Connection fixing part 52a: Notch part 53: Second attachment part 54: Locking part 60: Stopper fitting 61: Recess 62: Hole part 70: Fixing part with trigger function 71: Main body 72: Locking portion 73: Cut portion 80: Fixing portion with trigger function 81: Main body portion 82: Locking portion

Claims (6)

A first mounting portion fixed to the upper base isolation frame of the base isolation device;
A connection fixing part integrally connected to the first attachment part;
A second mounting portion that is integrally connected to the connection fixing portion and is fixed to the lower base isolation frame of the base isolation device;
A fixed portion with a trigger function that is integrally formed from a single plate in a state of being arranged in the order of the first mounting portion, the connection fixing portion, and the second mounting portion,
The first mounting portion, the connection fixing portion, and the second mounting portion are thin when viewed from the side of the plate body ,
Before SL connecting the fixed portion, the width when viewed from the plate body front formed thinner than the width of the first mounting portion and the second mounting portion,
The first mounting portion and the second mounting portion, a trigger which is characterized that you are formed long hole fixing screws on at least one is inserted, and the circular hole and the other to the fixing screw is inserted is formed Fixed part with function. In the fixing part with a trigger function according to claim 1,
The trigger function fixing part, a front has a substantially Engineering-shape, and the trigger function fixing portion whose side surface is characterized Rukoto to have a linear shape. A first mounting portion fixed to the upper base isolation frame of the base isolation device;
A connection fixing part integrally connected to the first attachment part;
A second mounting portion that is integrally connected to the connection fixing portion and is fixed to the lower base isolation frame of the base isolation device;
A fixed portion with a trigger function that is integrally formed from a single plate in a state of being arranged in the order of the first mounting portion, the connection fixing portion, and the second mounting portion,
The first mounting portion, the connection fixing portion, and the second mounting portion are thin when viewed from the side of the plate body,
The connection fixing portion is formed so that the width when viewed from the front of the plate body is thinner than the width of the first attachment portion and the second attachment portion, and
When the first attaching part or the second attaching part is inserted into the upper and lower holes provided in the upper seismic isolation frame and the lower seismic isolation frame of the seismic isolation device, respectively, when the fixing part with a trigger function is inserted. A fixing part with a trigger function, characterized in that it is located in both holes . In the fixed part with a trigger function according to claim 3 ,
The first is fixed to the mounting portion, the conditioned trigger function fixing unit, wherein Rukoto includes a locking portion upper locked to seismic isolation mount. In the fixed part with a trigger function according to claim 3 or claim 4,
The trigger function fixing part, a front has a substantially Engineering-shape, and the trigger function fixing portion, characterized in Rukoto whose sides have a substantially L-shape. An upper base frame,
A lower base is fixed to the ground or floor and supports the upper base to move horizontally;
A plurality of fixing parts with a trigger function according to any one of claims 1 to 5, wherein the upper base isolation frame and the lower base isolation frame are connected and fixed at these side surfaces,
The fixed part with multiple trigger functions suppresses the movement of the upper base isolation frame when a force less than a predetermined force is applied, and the fixed parts with multiple trigger functions are connected when a force exceeding the predetermined force is applied The fixed part breaks, and the upper base isolation frame is moved to perform base isolation.
A seismic isolation device characterized by that.

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