JP4890156B2 - Access blocking device and installation structure thereof - Google Patents

Description

  The present invention relates to an entry blocking device and its installation structure, and in particular, is arranged at the entrance / exit of a predetermined area to block a person from entering a predetermined area between a seismic isolation structure and another structure. It is related with the approach blocking device and its installation structure.

  In recent years, seismic isolation structures have been proposed for the purpose of minimizing damage to structures caused by earthquakes and are now widely implemented. This seismic isolation structure can be explained by taking a detached house as an example. The seismic isolation device is interposed between the foundation and the foundation, and the seismic isolation device propagates the ground vibration due to the earthquake to the building. A structure that prevents being done. By the way, when building such a base-isolated structure, especially a base-isolated house, if there are other structures that are not seismically isolated, such as eaves, at least within the range displaced by the earthquake, The base-isolated house (base-isolated structure) will collide with other structures.

  Therefore, a certain interval must be provided between the seismic isolation structure and other structures. However, if the distance between this seismic isolation structure and other structures is wide, there is little danger even if there is a person at the time of the earthquake within this distance, but if it is narrow, the seismic isolation structure There is a risk that it will be caught between and other structures. Thus, in order to avoid such a risk, conventionally, a barrier fence using a movable pipe and a flexible joint body (see Patent Document 1) has been proposed.

  This barrier fence is provided with a support column on each of the seismic isolation structure side and the other structure side that is intended to block people from entering, and a rubber tube and a coil spring A pipe-shaped base tube is laid sideways with the opposing surfaces separated from each other through a flexible joint body combined with each other, and a small-diameter connecting rod is slidably inserted into the hollow portion of the pair of base tubes. Is. When the distance between the pair of support columns changes due to the operation of the seismic isolation device, the base tube expands and contracts by sliding along the outer periphery of the connecting rod at the intermediate position, and the change in the distance between the pair of support columns. It is intended to follow the amount.

JP 2000-110414 A

  However, since the pair of base tubes in the conventional technique is configured to expand and contract by sliding along the outer periphery of the small-diameter connecting rod, the minimum distance between the pair of support columns is the total length of the pair of base tubes, Or, since it is limited by the total length of the connecting rod, there is a problem that it cannot be installed when the distance between the seismic isolation structure and the other structure is narrow.

  Therefore, the present invention has been proposed in order to solve the problem of the above-described prior art approach blocking device, and even when the distance between the seismic isolation structure and other structures is narrow, It is an object of the present invention to provide an approach blocking device that can be installed and an installation structure thereof.

  In order to achieve the above-described object, an approach blocking apparatus according to the first invention (the invention described in claim 1) includes a seismic isolation structure provided with a seismic isolation device and other seismic isolation structures adjacent to the seismic isolation structure. An intrusion blocking device that blocks a gap formed between a structure and a person to prevent the entry of a person, and includes a shielding member for blocking a person's entry and a guide groove, and the other structure or immunity described above. A slide rail that is horizontally fixed to one of the seismic structures, a slider that slides while being guided by a guide groove of the slide rail, and a first connection that connects the slider and one side of the shielding member It is characterized by comprising a member, and a second connecting member for swingably connecting the other side portion of the shielding member and the seismic isolation structure or other structure.

  In the first invention, the shielding member that shields the entry of a person, the slide rail that is horizontally fixed to either one of the other structures or the seismic isolation structure, while being guided by the guide groove of the slide rail A slider that slides, a first connecting member that connects the slider and one side of the shielding member, and a first connecting member that swingably connects the other side of the shielding member and the seismic isolation structure or other structure. When the interval between the seismic isolation structure and the other structure is displaced due to the occurrence of an earthquake, the connecting member is provided via the shielding member and the first and second connecting members. The position of the slider guided by the slide rail moves, and the swing angle of the shielding member is changed by the swing action of the second connecting member, so that the distance between the seismic isolation structure and the other structure is displaced. The amount can be absorbed.

  Each component of the present invention does not substantially limit the minimum distance between the seismic isolation structure and the other structure by the component itself. It can be installed even when the interval is narrow. That is, the minimum distance between the seismic isolation structure and other structures is limited only by the horizontal thickness or width of the shielding member, slide rail, first and second connecting members, etc. The minimum distance between the seismic structure and other structures is not substantially limited. The maximum distance between the seismic isolation structure and the other structure is mainly determined by the horizontal length of the shielding member and the length of the slide rail.

  Therefore, the shielding member is preferably a plate-like member, and the length of the shielding member in the horizontal direction or the like may be set in accordance with the distance between the seismic isolation structure on the construction site and another structure. In addition, the swinging posture of the shielding member in a normal state is a swinging posture corresponding to an intermediate position between the set maximum interval and the minimum interval, and the position of the slider at that time is approximately the movable range of the slide rail. It is preferable to set in the center.

  Further, according to a second invention (invention of claim 2), the shielding member constituting the approach blocking device according to the first invention is more than the perpendicular direction from the other structure to the seismic isolation structure. The installation structure is characterized in that the slider is installed at an inclination, and the position of the slider is substantially the center of the slide rail in a normal state.

  In the second aspect of the invention, the shielding member constituting the approach blocking device is installed to be inclined with respect to the perpendicular direction from the other structure to the seismic isolation structure. In normal times, the position of the slider is Since the installation structure is formed at the approximate center of the slide rail, it is possible to cope with displacements in all directions of the ground due to the occurrence of an earthquake. That is, the displacement direction of the ground due to an earthquake is not limited to a specific direction but is displaced in all directions (360 degrees with respect to the set position in the normal state). When the mounting angle of the shielding member to other structures is set to a right angle (or near right angle), the ground displacement due to the earthquake is only within the radius to the second connecting member centered on the slider. In addition, the slider slides along the slide rail and can cope with the displacement of the ground.

  Therefore, the shielding member constituting the approach blocking device is inclined more than the perpendicular direction with respect to the seismic isolation structure or other structures in normal times, and the operation trajectory of the seismic isolation structure is between the maximum time and the minimum time. By making the installation structure such that the displacement angle of the second connecting member around the slider does not exceed a right angle and the second connecting member does not abut against the seismic isolation structure or other structures, It is possible to deal with displacements in all directions of the ground due to the occurrence of earthquakes.

  The third invention (the invention described in claim 3) is the above-mentioned second invention, wherein the lower end of the shielding member constituting the approach blocking device according to the first invention is the basis of the seismic isolation structure. The upper entrance is located above the upper end of the shield member, and stands between the seismic isolation structure and the other structure, and the upper end is lower than the lower end of the shielding member. The installation structure is characterized in that a blocking member is installed.

  In this 3rd invention, while the lower end of the shielding member which comprises an approach interception device is located above the upper end of the base of a base isolation structure, it is between a base isolation structure and other structures. Is an installation structure in which an intrusion blocking member is installed that is erected from the ground and whose upper end is below the lower end of the shielding member, so that the clearance between the lower end of the shielding member and the ground surface is large. Even if it exists, a person's approach (especially infants approach) can be interrupted | blocked from the clearance gap.

  In other words, if the lower end of the shielding member is located below the upper end of the base of the base isolation structure, when the distance between the base isolation structure and the other structure is displaced due to the occurrence of an earthquake, the shielding member May abut against the base of the seismic isolation structure. In such a case, the lower end of the shielding member is set to be positioned above the upper end of the base of the seismic isolation structure, and the upper end is between the lower end of the shielding member and the ground surface. By installing an entry blocking member that is located below the lower end of the door, the entry of people from the gap is blocked.

  In the first invention (the invention described in claim 1), when the distance between the seismic isolation structure and the other structure is displaced, the slide rail is interposed via the shielding member and the first and second connecting members. Since the position of the guided slider moves and the rocking angle of the shielding member changes, the displacement of the space between the base-isolated structure and other structures is absorbed. There is nothing that substantially limits the minimum distance between the seismic isolation structure and the other structure by itself, and it can be installed even when the distance between the seismic isolation structure and the other structure is narrow. As a result, the degree of freedom of design or construction work is increased, and safety is improved by reliably preventing people from entering between the seismic isolation structure and other structures when an earthquake occurs. Can do.

  In the second invention (the invention described in claim 2), it is possible to cope with displacements in all directions of the ground due to the occurrence of an earthquake, and the operating trajectory of the seismic isolation structure is in a wide range or a small range. In this case, since the distance between the horizontal direction of the shielding member and the length of the slide rail is determined, the distance between the base isolation structure and another structure is narrow or wide, or the operation of the base isolation structure is performed. It is possible to handle both cases where the trajectory is wide or small.

  In the third invention (the invention described in claim 3), the seismic isolation structure and another structure are erected from the ground, and the upper end is set lower than the lower end of the shielding member. Because of the installation structure in which the entry blocking member is installed, even if the gap between the lower end of the shielding member constituting the entry blocking device and the ground surface is large, the entry of people (especially infants) It is possible to improve safety by blocking entry).

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings. As shown in FIGS. 1 and 2, an approach blocking device 1 according to this embodiment includes a base isolation structure 2 having a base isolation device, and another structure 3 adjacent to the base isolation structure 2. Is a device that shields the entrance of a person and shields the entrance of a person, and is fixed horizontally to a shielding plate 5 that is a shielding member that shields the entry of a person and another structure 3 Two slide rails 4, 4, two sliders 6, 6 that slide while being guided by the guide grooves 4 a shown in FIG. 3B of each of the slide rails 4, 4, Two joints 7, 7 which are first connecting members for connecting one side 5 a of the shielding plate 5, and the other side 5 b of the shielding plate 5 and the seismic isolation structure 2 are swingably connected. Each of the second connecting members is composed of two hinges 8 and 8 and swing joints 9 and 9.

  First, in the seismic isolation structure 2, as shown in FIG. 1, a large number of upright members 12 are erected on a foundation 11 laid on the ground, and a steel base 13 is arranged on the upper surface side of these upright members 12. A base 14 is arranged on the upper surface, a structure such as a column 15 is arranged on the upper surface, and an outer wall (or outer plate) 16 is overlaid at a position adjacent to the column 15 and the like. The upper structure including the steel frame 13 is supported by a seismic isolation device (not shown), and when the ground vibrates due to the occurrence of an earthquake, only the foundation 11 and the standing member 12 vibrate or swing together with the ground. In addition, since vibration is not propagated to the upper structure including the steel base 13 due to the operation of the seismic isolation device (not shown), the structure does not vibrate or swing, thereby preventing damage due to the vibration or swing of the earthquake. be able to.

  In addition, as the above-mentioned seismic isolation device, those using a roller member, those using a sliding member, those using a rubber member, etc. are known. It can be implemented by any method. In the embodiment of the present invention, the two slide rails 4, 4 are fixed to another structure 3, and each of the shield plate 5 is connected by two hinges 8, 8 and swing joints 9, 9. The side portion 5b and the seismic isolation structure 2 are slidably connected to each other, but the two slide rails 4 and 4 are fixed to the seismic isolation structure 2 and each has two hinges 8 and 8 and a swinging mechanism. You may make it connect the other side part 5b of the shielding board 5 and the other structures 3 by the dynamic couplings 9 and 9 so that rocking | fluctuation is possible.

  Next, as shown in FIGS. 1 and 2, the structure of the entry blocking device 1 is arranged on the inner surface facing the seismic isolation structure 2 and another structure 3 so as to be inclined with respect to the inner surface. Since the shield plate 5 is a device that shields a person from entering the gap between the seismic isolation structure 2 and the other structure 3, the shield plate 5 that is a shield member is preferably a plate, What is necessary is just to select from raw material shapes, such as not only a wire mesh shape or a fence shape.

  Two joints 7 and 7 are fixed to one side portion 5a of the shielding plate 5 in parallel in the vertical direction, and the joints 7 and 7 are provided at the tips of the shaft portions 7a shown in FIG. A slider 6 formed in a spherical shape is fixed. Further, two swing joints 9 are fixed to the other side portion 5b of the shielding plate 5 in parallel in the vertical direction, and the swing joints 9 and 9 shown in FIG. The portion 9a is formed in a bifurcated shape (not shown), and a pin hole (not shown) into which a swing pin 10 (to be described later) can be fitted is drilled in the center of the tip portion.

  Moreover, the inner surface facing the seismic isolation structure 2 of the other structure 3 shown in FIG. 1 has the same height as the two joints 7 and 7 fixed to one side portion 5a of the shielding plate 5. At the position, two slide rails 4 and 4 are fixed horizontally and in parallel. As shown in FIG. 3, sliders 6 fixed to the tips of the two joints 7 and 7 are provided on the inner circumferences of the slide rails 4 and 4, respectively. Guide grooves 4a for guiding are formed on the four inner peripheral surfaces, and on the side surfaces thereof, long window-shaped notches (reference numerals are omitted) in which the shaft portions 7a of the two joints 7 and 7 are movable in the longitudinal direction. Is formed. Then, the slider 6 inserted in the guide groove 4a of each slide rail 4 holds the one side portion 5a side of the shielding plate 5 via each joint 7, and from one end portion 4b of each slide rail 4. Slide between the other ends 4c.

  Further, the outer wall 16 of the seismic isolation structure 2 shown in FIG. 1 has two swing joints 9 and 9 fixed to the other side portion 5b of the shielding plate 5 at the same height position. As shown in FIG. 3A, hinges 8 and 8 are fixed in parallel. As shown in FIG. 3A, support portions 8a that can be inserted and slidable into the two forks of the swinging portions 9a of the swing joint 9 are provided. And a pin hole (not shown) through which a swing pin 10 (described later) is rotatably inserted is drilled in the center of the tip. Then, the other side portion 5b of the shielding plate 5 is swingably held by the swing joint 9 in which the bifurcated portion of the swing portion 9a is pivotally supported by the support portion 8a of each hinge 8 by the swing pin 10. Is done.

  With this configuration, when the distance between the seismic isolation structure 2 and the other structure 3 shown in FIGS. 1 and 2 is narrower than illustrated, the sliders 6 and 6 are inserted into the guide grooves 4a of the slide rails 4 and 4, respectively. The slide pins 4 are guided to slide from the center portion of the slide rails 4 and 4 to the other end portions 4c, and the swing pins 10 that pivotally support the hinges 8 and 8 and the swing joints 9 and 9 are supported as fulcrums. Thus, the joints 7 and 7, the shielding plate 5, and the swing joints 9 and 9 correspond to an inclination angle at which the angle changes integrally with the sliding of the sliders 6 and 6. When the distance between the seismic isolation structure 2 and the other structure 3 shown in FIGS. 1 and 2 is widened, the sliders 6 and 6 slide from the center of the slide rails 4 and 4 toward the one end 4b. In addition, the joint 7, 7, the shielding plate 5, and the swing joints 9, 9 are integrally tilted by the sliding of the sliders 6, 6 with the swing pins 10 of the hinges 8, 8 as fulcrums. Corresponding to

  In FIG. 1, when the lower end position of the shielding plate 5 is set below the upper end of the upright member 12 installed on the foundation 11, another structure 3, the foundation 11, and the upright member together with the ground due to the occurrence of an earthquake. When 12 is displaced to the left in the figure, the upright member 12 may interfere with the lower side of the shielding plate 5. However, when the lower end position of the shielding plate 5 is made higher than the upright member 12, an infant or the like from the gap between the lower end of the shielding plate 5 and the ground surface can see FIG. 2 between the seismic isolation structure 2 and the other structure 3. There is a risk of entering the gap S shown in FIG. Therefore, in such a case, as shown in FIG. 1 and FIG. 2, the danger of an infant or the like entering is avoided by installing an entry blocking member 17 such as a concrete block below the shielding plate 5. .

  Next, the function and effect will be described while explaining how to use the above-described approach blocking device 1. In addition, when an earthquake occurs, the actual displacement with the ground is the other structure 3 that is not the seismic isolation structure and the ground side of the seismic isolation structure 2 (base 11, standing member 12). Since vibrations or fluctuations due to earthquakes are not propagated to the structure 2, the base isolation structure 2 is not displaced in principle. However, in FIG. It was described as a relative displacement. Further, the seismic isolation structure operation track U shown in FIG. 4 is the operation trajectory of the seismic isolation structure 2 and the operation of the pin holes of the hinges 8 attached to the outer wall 16 on the seismic isolation structure 2 side. Indicates the range. 4A and 4C, the shielding plate indicated by the phantom line (5) indicates the position of the shielding plate 5 in FIG. 4B.

  First, assuming that the operating range of the seismic isolation structure 2 is within the range of the seismic isolation structure operating track U shown in FIG. 4, the distance between the side surface 2T of the base isolation structure 2 and the side surface 3T of the other structure 3. 4A, the hinge 8 is located at the lower end of the seismic isolation structure operation track U and the slider 6 is close to the one end 4b of the slide rail 4. As shown in FIG. The distance between the side surface 2T of the seismic isolation structure 2 and the side surface 3T of the other structure 3 is maximized at the inclination angle. Further, the hinge 8 is displaced to the side surface 3T side of the other structure 3, and as shown in FIG. 4C, the hinge 8 is located at the upper end of the seismic isolation structure operation track U and the slider. The distance between the side surface 2T of the seismic isolation structure 2 and the side surface 3T of the other structure 3 is minimized at an inclination angle of the shielding plate 5 in which 6 approaches the other end 4c of the slide rail 4.

  Therefore, the positional relationship of each component in normal times is determined by the range of the seismic isolation structure operation track U shown in FIG. 4, and the distance between the side surface 2T of the seismic isolation structure 2 and the side surface 3T of the other structure 3. May be set at an intermediate position between the maximum interval shown in FIG. 4A and the minimum interval shown in FIG. 4C (see FIG. 4B). By setting in this way, the range in which the hinge 8 portion on the seismic isolation structure 2 side can be displaced is omnidirectional within the seismic isolation structure operation track U with respect to the normal state shown in FIG. The shielding plate 5 can be inclined according to the displacement of the distance between the seismic isolation structure 2 and the other structure 3.

  For example, when the normal positional relationship is set to the neutral position shown in FIG. 4B, the distance between the side surface 2T of the seismic isolation structure 2 and the side surface 3T of the other structure 3 due to the occurrence of an earthquake. When the width is widened and the state shown in FIG. 4A or approaches this state, the slider 6 is drawn through the swing joint 9, the shielding plate 5 and the joint 7 by the swing pin 10 of the hinge 8 part. As the slider 6 approaches the one end 4 b of the slide rail 4, the inclination angle of the shielding plate 5 changes, and the change in the inclination angle is absorbed by the swing pin 10.

  Further, when the distance between the side surface 2T of the seismic isolation structure 2 and the side surface 3T of the other structure 3 is reduced, and the state shown in FIG. The slider 6 is pressed by the moving pin 10 through the swing joint 9, the shielding plate 5 and the joint 7, and the slider 6 approaches the other end 4 c of the slide rail 4, and the inclination angle of the shielding plate 5 changes. The change in the tilt angle is absorbed by the swing pin 10.

  As is clear from the above description, according to the embodiment of the present invention, the slider 6 shown in FIG. 3 is adapted to the slide rail 4 corresponding to the displacement of the distance between the seismic isolation structure 2 and the other structure 3. Is absorbed by the swinging action of the hinge 8, swing joint 9 and swing pin 10, and the seismic isolation structure 2. There is nothing that restricts the minimum distance between the other structures 3 and it can be reliably installed even when the distance between the seismic isolation structure 2 and the other structures 3 is narrow. Moreover, since the component which concerns on this invention can use what is marketed as a normal building material etc., for example, by using a commercial item about a shielding member, material shape, such as plate shape, a wire-mesh shape, or a fence shape, is used. At the same time, appearances such as colors and patterns can be freely selected according to the taste of the customer, the aesthetic appearance can be adjusted, and the apparatus can be configured at low cost.

  In the above embodiment, the other structure adjacent to the seismic isolation structure has been described on the assumption that it is a fixed structure that does not include a seismic isolation device. The invention can be implemented.

It is the side view which carried out the cross section of a part which shows the whole approach blocking apparatus which concerns on embodiment. It is AA arrow sectional drawing of FIG. It is an enlarged view which shows the principal part of an approach blocking apparatus, (a) is a top view, (b) is a side view. It is a schematic diagram which shows the action | operation of the interruption | blocking unit by an earthquake, (a) is when the space | interval of a seismic isolation structure and another structure is the maximum, (b) is a seismic isolation structure and other structures When the interval is intermediate, (c) shows the case where the interval between the seismic isolation structure and the other structure is minimum.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Entrance blocking device 2 Seismic isolation structure 3 Other structures 4 Slide rail 4a Guide groove 5 Shielding plate 5a One side part 5b Other side part 6 Slider 7 Joint 8 Hinge 9 Swing joint 10 Swing pin 11 Foundation 14 Base 17 Ingress blocking member

Claims (3)

An entry blocking device that blocks a gap formed between a seismic isolation structure equipped with a seismic isolation device and another structure adjacent to the seismic isolation structure, thereby blocking human entry. ,
A shielding member for shielding a person from entering,
A slide rail in which a guide groove is formed and fixed horizontally to any one of the other structure or the seismic isolation structure,
A slider that slides while being guided by the guide groove of the slide rail;
A first connecting member that connects the slider and one side of the shielding member;
An entry blocking device comprising: a second connecting member that swingably connects the other side of the shielding member and the seismic isolation structure or other structure.   The shielding member constituting the entry blocking device according to claim 1 is installed to be inclined with respect to a perpendicular direction from the other structure to the seismic isolation structure, and in a normal state, the position of the slider is An installation structure of an approach blocking apparatus, characterized in that it is substantially at the center of the slide rail. The lower end of the shielding member constituting the approach blocking device according to claim 1 is positioned above the upper end of the base of the seismic isolation structure, and between the seismic isolation structure and another structure. The installation structure of an approach blocking apparatus according to claim 2, further comprising an approach blocking member that is erected from the ground and whose upper end is below the lower end of the shielding member.