JP2008106798A - Three-dimensional overturning preventing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a three-dimensional overturning preventing device capable of carrying out seismic response control of an object in three-dimensional directions, and capable of carrying out overturning prevention while having a simple structure. <P>SOLUTION: The three-dimensional overturning preventing device 1 is provided with a base 11 installed on an installation face 3 for carrying out installation of the object 2, a trestle 12 abutted on a bottom face of the object 2 above the base 11, a low friction member 13 interposed between the base 11 and the installation face 3, a support mechanism 14 with a restoration function using coil springs 18 each arranged between the base 11 and the trestle 12, a pair of hydraulic dampers 21 arranged between the base 11 and the trestle 12, and piping ways 23, 24 mutually connecting the hydraulic dampers 21. It has an overturning preventing mechanism 15 maintaining the trestle 12 in parallel arrangement with respect to the base 11 and preventing overturning of the object 2 when there is tilting of the object 2. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a three-dimensional overturn prevention device, and more specifically, measuring equipment, vending machines, computer servers, permanent / temporary display stands installed in art galleries / museums, etc. The present invention relates to a three-dimensional fall prevention device having a fall prevention function for an object such as a large device.

  Conventionally, earthquake countermeasures have been taken by various means for objects such as weighing equipment, vending machines, and computer servers. For example, seismic isolation devices (generally allowed for response displacement) are often used for measuring devices, computer servers, exhibition stands, and the like for acceleration control and prevention of object toppling. In the case of vending machines such as beverages, standards are set in the industry and various measures are taken for each installation location.

  General earthquake countermeasures such as vending machines have a simple mechanism that uses sliding plates that are longer than the longitudinal dimensions of the equipment and are difficult to tip over, for example, equipment installed indoors in low- and middle-rise structures. A fall prevention device and a device that makes it difficult for the vending machine to fall by tilting backward in the event of an earthquake are used.

  When installed on the upper floor of a high-rise structure, there is a case where the floor is specially fixed on the floor due to the relation that the response displacement usually increases. In addition, when installed outdoors, a fixture that satisfies the standards specified in the industry is used. For example, it is fixed on the basis of a special concrete block and has the strength determined by the industry standards. It is fixed with an anchor bolt.

  In general, when installed indoors in a middle- and low-rise structure as described above, a fall-prevention device that targets only the front-rear direction by fixing the device fixing bolt to the sliding plate longer than the device dimension (front-rear direction), etc. It is dealt with by wearing. Of course, this sliding plate not fixed to the floor starts to slide between the floor upper surface and the sliding plate in the case of a large earthquake input, and has a mechanism for absorbing seismic energy.

  Furthermore, as an improved type of this fall prevention device, there is one that incorporates a mechanism that tilts rearward as soon as the device is subjected to an earthquake. In addition, as a seismic isolation means for vending machines, rolling type or sliding type guide rails having the same curvature or multiple curvatures or those using both rolling and sliding have been developed and implemented. . As such a seismic isolation device, there are a single type or a combination type using a sliding and rolling mechanism characterized by a restoring force in the longitudinal direction of the target device and a damping mechanism.

  As described above, in the case of a computer server or the like, seismic isolation measures are generally taken because the main purpose is mainly to reduce response acceleration (large response displacement occurs).

  However, as in the example of the vending machine described above, the overturn prevention device using only the sliding plate may fall over if the earthquake input is somewhat large and the coefficient of friction with the floor is large. Another type of fall prevention device has a complicated mechanism that tilts toward the rear side in the event of an earthquake, which is costly, and since there is no restoration device, it is necessary to manually restore it to its normal position after the earthquake. Expenses and manpower are required.

  Furthermore, the fall prevention device employed in a vending machine or the like becomes a problem when, for example, a handicapped person accesses because a protruding portion is necessary in terms of performance, particularly in the front-rear direction.

  Also, in the case of seismic isolation devices, the response displacement becomes too large in the case of high-rise and super-high rise from the predicted seismic response analysis results, requiring a large space with respect to the surroundings, and also realistic to match the equipment size This makes it quite difficult to achieve a large device size.

  The reason for this is that due to the relationship to follow a large response displacement, the size of the device naturally increases, so the price increases, and at the same time, it becomes heavier. It is not always satisfactory for the conditions.

  Furthermore, as described above, if the seismic isolation device is installed on a high-rise building or a high-rise building, the response displacement will become very large, and it is expected that problems will arise in terms of contact with the surroundings and wiring processing. Therefore, it is difficult to install.

  Therefore, there are problems such as response displacement at the time of earthquake, price, device weight, device strength, etc., and there are cases where restrictions are placed on the installation location. In addition, as a problem common to both, the sliding plate protrudes considerably in the forward direction of the device, and there are cases where it becomes an obstacle when accessing.

  In Patent Document 1, an upper frame having a sliding plate is provided at the bottom of a small and lightweight device, and a lower frame having a sliding plate is provided on a ground installation portion installed on the ground, and both these frames are connected via a sliding support member. There has been proposed a seismic isolation device for a small and lightweight device having a structure including a coil spring that allows a relatively lightweight sliding movement in the horizontal direction to perform seismic isolation of a small and lightweight device and return the upper frame to the origin position.

However, in the case of the seismic isolation device of Patent Document 1, the upper frame and the lower frame must be provided over a length substantially equal to the size of the bottom portion of the small and lightweight device (for example, the size in the front-rear direction or the left-right direction). Furthermore, since a coil spring for returning to the origin position is also required, the structure is complicated, and the seismic isolation function is limited only in the horizontal direction (front-rear direction or left-right direction), and further measures to prevent falling are sufficient. It can not be said.
JP 2000-329191 A

  The problem to be solved is that it has a simple structure, but can control three-dimensionally in front, back, left, and right and up and down in the event of an earthquake, and automatically restores the tilt of the object to prevent falling. There is no three-dimensional fall prevention device that can be achieved.

  The three-dimensional overturn prevention device of the present invention includes a base placed on an installation surface on which an object is installed, a pedestal that comes into contact with the bottom surface of the object above the base, the base, and the installation surface. A low-friction member interposed between the base, the base and the base, and a support mechanism with a restoring function respectively disposed at positions corresponding to the front side and rear side positions of the object, and the base and base And a fall prevention mechanism that prevents the object from falling by maintaining the gantry in parallel with the base by using a tilting force when the object placed between them is tilted. And

The present invention has the following effects.
According to the first aspect of the present invention, it is composed of a base, a pedestal, a low friction member, a support mechanism with a restoring function, and a fall prevention mechanism. In addition, it is possible to provide a novel three-dimensional overturn prevention device capable of realizing excellent vibration attenuation with respect to vibration in the front-rear direction, prevention of overturning of an object by the overturn prevention mechanism, and further suppression of inclination by a low friction member.

  According to the invention described in claim 2, the structure using the support pin and the coil spring as the support mechanism with the restoring function and the structure using two hydraulic dampers as the fall prevention mechanism are the same as the invention according to the invention described in claim 1. Overall, the mechanism is simple and low-cost, excellent vibration damping with respect to the vertical and longitudinal vibrations of the object, prevention of overturning of the object by the overturn prevention mechanism, and novel control that can suppress tilt by the low friction member A three-dimensional overturn prevention device can be provided.

  According to the invention described in claim 3, by using two of the three-dimensional fall prevention devices of claim 2 and arranging them at the bottoms on both sides in the front-rear direction of the object, vibration control and three-dimensional of the object It is possible to provide a novel three-dimensional fall prevention device that can realize fall prevention.

  According to the invention of claim 4, the structure using the support pin and the coil spring as the support mechanism with the restoring function, and the two sets of parallel links with the friction damper having the frictional force set to an arbitrary value as the fall prevention mechanism As in the invention of the first aspect of the invention, the mechanism is simple and inexpensive as a whole, excellent vibration attenuation with respect to vibrations in the vertical and longitudinal directions of the object, and the object by the fall prevention mechanism. It is possible to provide a novel three-dimensional overturn prevention device capable of preventing the overturn and further realizing the inclination suppression by the low friction member.

  According to the fifth aspect of the present invention, the two three-dimensional overturn prevention devices of the fourth aspect described above are used, and these are arranged at the bottoms on both sides in the front-rear direction of the target, thereby suppressing the vibration of the target and 3 It is possible to provide a novel three-dimensional fall-preventing device capable of realizing the three-dimensional fall prevention.

According to the invention described in claim 6, the configuration is substantially the same as that of the invention described in claim 4, and the configuration adopting a separate vibration damping means instead of the friction damper is the same as that of the invention described in claim 4. It is possible to provide a three-dimensional overturn prevention device that exhibits a special effect.
According to the seventh aspect of the present invention, the configuration is substantially the same as that of the fifth aspect of the present invention, and a configuration in which a separate vibration damping means is employed instead of the friction damper, and the same as the fifth aspect of the present invention. It is possible to provide a three-dimensional overturn prevention device that exhibits a special effect.

  Although the present invention has a simple structure, it is possible to control three-dimensional directions such as front, back, left, and right and up and down in the event of an earthquake, and to automatically restore the tilt of the object and prevent overturning. For the purpose of providing a three-dimensional overturn prevention device, a base placed on an installation surface on which an object is installed, a pedestal that abuts on the bottom surface of the object above the base, and the base and installation A low-friction member interposed between the surface and a restoring function comprising a spring support, a pin support or a bolt support respectively disposed at positions corresponding to the front side and rear side positions of the object between the base and the base A pair of two-port hydraulic dampers arranged at positions corresponding to the front and rear positions of the object between the support mechanism, the base and the pedestal, and the ports of both hydraulic dampers crossing each other A pipe line to be connected, and the inclination of the object. A tipping prevention mechanism that prevents the object from tipping over by maintaining displacement of the object in parallel with the base by linking the displacement associated with the tilting force applied to one of the hydraulic dampers at the time of occurrence to the displacement of the other hydraulic damper by hydraulic movement. And realized by the configuration having.

  Hereinafter, a three-dimensional overturn prevention device according to an embodiment of the present invention will be described in detail with reference to the drawings.

(Example 1)
1 and 2 show a three-dimensional overturn prevention device 1 according to the first embodiment. The three-dimensional overturn prevention device 1 is, for example, an object for preventing overturning such as a weighing device 30 described later. A flat base 11 disposed on the installation surface 3 on which the base 2 is installed, a base 12 arranged in parallel above the base 11 and abutting against the bottom surface of the object 2, the base 11 and the installation surface 3 A low friction member 13 made of, for example, a metal plate (SS plate) interposed between the base plate 11 and the base 12 and the front side of the object 2 between the base 11 and the gantry 12. And a support mechanism 14 with a restoring function disposed at a position corresponding to the rear position, and a fall prevention mechanism 15 disposed between the base 11 and the gantry 12. Here, the following description will be given on the assumption that the three-dimensional means a space considered in the X, Y, and Z directions shown in FIGS.

  As shown in FIGS. 1 and 2, the support mechanism 14 with a restoring function on the front side has a support pin 16 standing on the base 11, and a lower end plate 17 and a coil spring 18 on the support pin 16. The upper end plate 19 is disposed, and the upper surface of the upper end plate 19 is in contact with the bottom surface of the gantry 12. Similarly, the support mechanism 14 with a restoring function on the rear side includes a support pin 16, a coil spring 18, and an upper end plate 19.

  As shown in FIG. 1, the front side upper end plate 19 projects to the rear side from the lower side end plate 17, and the rear side upper end plate 19 has a lower end portion. The dimensions are such that they protrude forward from the plate 17.

  As the support mechanism 14 with a restoring function, a structure such as a bolt support and a pin support can be adopted in addition to the structure described above. Further, in place of the coil spring 18, a combination of a damping member made of rubber, polymer, viscosity, viscoelasticity or elastoplastic material and a restoring member made of a disc spring, anti-vibration rubber or leaf spring, or these Any single structure may be adopted.

  As shown in FIGS. 1 and 2, the fall prevention mechanism 15 is erected on the base 11 at a position corresponding to the front and rear positions of the object 2 between the base 11 and the base 12. Two-port hydraulic dampers 21 and 22 that operate by a pair of disposed hydraulic pressures, piping paths 23 and 24 that cross-connect each port of both hydraulic dampers 21 and 22, and cylinder rods 21a of the hydraulic dampers 21 and 22 , 22a, and the contact plate 25, 26 attached to the end portion of the front hydraulic damper 21 on the lower surface of the front end plate 19 on the front side and the rear hydraulic damper 22 side. The contact plate 26 is in contact with the lower surface of the rear upper end plate 19.

  Next, the vibration control operation and the fall prevention operation of the three-dimensional fall prevention device 1 according to the first embodiment will be described with reference to FIG.

  A three-dimensional overturn prevention device 1 according to the first embodiment includes a base 11, a gantry 12, a low friction member 13, a support pin 16 and a support mechanism 14 with a coil spring 18, two hydraulic dampers 21, The three-dimensional overturn prevention device 1 can be configured with a simple and low-cost mechanism as a whole.

  In addition, the support mechanism 14 with the restoration function using the support pin 16 and the coil spring 18 can automatically restore the origin of the object 2 to a normal fixed position after the end of the vibration due to the earthquake or the like. The coil spring 18 and the hydraulic dampers 21 and 22 can also exhibit an excellent vibration damping action against vibrations in the vertical direction and the front-rear direction. In addition, for example, a viscous body or a viscoelastic body may be used in combination as the vibration damping member in parallel or in series with the support mechanism 14 with the restoring function. Moreover, what is necessary is just to set it as the structure which integrates the said coil spring 18 and the said vibration damping member, when using it for the said vibration damping member in series with the said support mechanism 14 with a restoring function.

  Furthermore, the fall prevention mechanism 15 using the two hydraulic dampers 21 and 22 can realize the fall prevention of the object 2. That is, as shown in FIG. 3, for example, of the two hydraulic dampers 21 and 22 on the front side and the rear side, for example, the rear side hydraulic damper 22 causes a tilt load due to the backward tilt of the object 2 to be applied to the gantry 12. The cylinder rod 22a and the cylinder 22b of the rear hydraulic damper 22 are displaced downward by this inclination load.

  At this time, with the displacement of the cylinder 22b, the lower hydraulic oil of the cylinder 22b is pumped to the upper side of the cylinder 21b in the front hydraulic damper 21 through the piping 23, and the cylinder 21b of the front hydraulic damper 21 sinks downward. As a result, the gantry 12 is maintained in parallel to the base 11, and the inclination of the object 2 is automatically eliminated to prevent the tumbling. Further, in the three-dimensional overturn prevention device 1 according to the first embodiment, since the hydraulic dampers 21 and 22 are used instead of the hydraulic cylinders for load transmission, the hydraulic dampers 21 and 22 themselves provide vibration damping action. It can also be demonstrated.

  Note that the hydraulic pressure settings of the two hydraulic dampers 21 and 22 are set in advance so as to be appropriate according to the weight of the object 2, the set value of the tilt angle, and the like. In this case, as shown in FIG. 3, manual throttle valves 27 and 28 are respectively connected to the pipe lines 23 and 24, and the throttle valves 27 and 28 are manually opened and closed to flow through the pipe lines 23 and 24. By adjusting the amount of oil, the hydraulic pressure of the hydraulic dampers 21 and 22 can be set appropriately. Although not shown, an electric throttle valve is connected to each of the pipelines 23 and 24, and an open / close control signal is transmitted from a hydraulic controller (not shown) to the electric throttle valve to appropriately set the hydraulic pressure of the hydraulic dampers 21 and 22. It can also be done.

  In the three-dimensional overturn prevention device 1 according to the first embodiment, since the low friction member 13 is further brought into contact with the installation surface 3, vibrations in the front-rear or left-right direction from the installation surface 3 to the three-dimensional overturn prevention device 1 are achieved. Is transmitted by the sliding of the low-friction member 13, the three-dimensional overturn prevention device 1 itself is also displaced in the front-rear or left-right direction, so that the vibration of the object 2 is caused by the vibration compared to the case without the low-friction member 13. Tilt can be suppressed.

  Next, referring to FIG. 4, a configuration that uses two of the three-dimensional fall prevention devices 1 according to the first embodiment to control the weighing device 30 that is one of the objects 2 and to prevent the fall. explain.

  In this case, as shown in FIG. 4, the three-dimensional fall-preventing devices 1 having two pedestals 12 symmetrically installed at the bottoms on both sides in the front-rear direction of the weighing device 30 are arranged symmetrically. The three-dimensional fall-preventing device 1 similar to the above performs the three-dimensional vibration control of the front and rear, the left and right, and the top and bottom of the weighing device 30 and the fall prevention, and further suppresses the inclination. In FIG. 4, 12a is the front edge of the gantry 12, 12b is the side edge of the gantry 12, and the two gantry 12 has the front edge 12a and the side edge 12b symmetrical in the vertical direction in FIG. Provided.

  According to the configuration shown in FIG. 4, the two three-dimensional fall prevention devices 1 can effectively control the front and rear, left and right, and upper and lower three-dimensional vibration control and fall prevention of the weighing device 30 and further suppress the inclination. it can.

  In the configuration shown in FIG. 4, when an example of the load distribution by the weighing device 30 acting on the support mechanism 14 with the restoration function using the support pin 16 and the coil spring 18 is shown, the load acting on the support mechanism 14 with the restoration function on the front side is For example, the load acting on the support mechanism 14 with the restoring function on the one side is 340 kg / 2 on one side, for example, 170 kg / 2 on one side.

  Moreover, the vertical frequency of the coil spring 18 of the support mechanism 14 with a restoring function on the front side can be 10 to 15 Hz, and the vertical frequency of the coil spring 18 of the support mechanism 14 with a restoring function on the rear side can be 6.5 Hz. Further, the vertical deflection of the gantry 12 can be given as an example of ± 10 mm. Each numerical value described above is displayed in FIG.

(Example 2)
Next, with reference to FIGS. 5 and 6, a three-dimensional overturn prevention device 1A according to Embodiment 2 of the present invention will be described.

  The three-dimensional overturn prevention device 1A includes a base 11, a pedestal 12, a low friction member 13, and a support mechanism 14 with a restoring function similar to those in the first embodiment.

  Further, the three-dimensional overturn prevention device 1A is arranged vertically between the base 12 and the base 11 via a connecting body 47 in the middle, instead of the overturn prevention mechanism 15 with the damping function of the first embodiment. A fall prevention mechanism 15A is provided in which two sets of parallel links 42 and 43 with friction dampers 53 each having a friction force set to an arbitrary value are rotatably arranged.

  That is, the fall prevention mechanism 15 </ b> A fixes the upper support plate 45 on the lower surface of the gantry 12 and the lower support plate 46 on the upper surface of the base 11 in a symmetrical arrangement, and is intermediate between the upper support plate 45 and the lower support plate 46. The connecting body 47 is arranged in parallel at the position, and the upper front link arm 48 is connected between the front end portion of the upper support plate 45 and the front end portion of the connecting body 47, and the rear end portion of the upper support plate 45. The upper rear link arm 49 is connected to the rear end portion of the connecting body 47.

  Further, the lower front link arm 50 is connected between the front end portion of the lower support plate 46 and the front end portion of the connection body 47, and the rear end portion of the lower support plate 46 and the connection body 47. A lower rear link arm 51 is connected to the rear end portion of the lower rear link arm 51.

  The upper front link arm 48 and the upper rear link arm 49, and the lower front link arm 50 and the lower rear link arm 51 are arranged in parallel.

  Further, the upper front link arm 48 and the upper rear link arm 49 are rotatably connected to the gantry 12 by the respective rotation support portions 52, and the lower front link arm 50 and the lower rear link arm 51 are The upper support link arm 48 and the lower front link arm 50 are connected to the base 11 so as to be rotatable by the rotation support portion 52, and the front end portion of the connecting body 47 is set to an arbitrary value. The upper rear link arm 49 and the lower rear link arm 51 are connected to each other via a friction damper 53 having a friction force, and the upper rear link arm 49 and the lower rear link arm 51 are set to an arbitrary value at the rear end of the connecting body 47. It is connected via a friction damper 53 having force so as to be rotatable.

  Next, the vibration control operation and the fall prevention operation of the three-dimensional fall prevention device 1A according to the second embodiment will be described with reference to FIG.

  A three-dimensional overturn prevention device 1A according to the second embodiment includes a base link 11, a base 12, a low friction member 13, a support pin 16 and a support mechanism 14 with a coil spring 18 and a parallel link with a friction damper 53. As in the case of the first embodiment, the mechanism is simple and low-cost three-dimensional overturn prevention device 1A as a whole.

  Further, as in the case of the first embodiment, the support mechanism 14 with the restoration function using the support pin 16 and the coil spring 18 can automatically restore the origin of the object 2 to a normal fixed position after the vibration due to the earthquake or the like is finished. It is. The coil spring 18 and the parallel links 42 and 43 with the friction damper 53 having the friction force set to an arbitrary value can also exert an excellent vibration damping action against vibrations in the vertical direction and the front-rear direction. .

  Further, the gantry 12 can be maintained in a parallel arrangement with respect to the base 11 by interlocking the parallel links 42 and 43 in the fall prevention mechanism 15A to prevent the object 2 from falling.

  That is, as shown in FIG. 7, for example, when an inclination load due to a backward inclination of the object 2 acts on the fall prevention mechanism 15A via the mount 12, the inclination of the upper support plate 45 is caused by this inclination load. The rear side is displaced downward. At this time, the front side of the upper support plate 45 is also displaced downward in the same manner as the rear side by the interlocking operation of the parallel links 42, 43, so that the gantry 12 is arranged in parallel with the base 11. maintain. Thereby, the inclination of the target object 2 is automatically eliminated, and the fall is prevented.

As the fall-preventing mechanism 15A, parallel links 42 and 43 in which the friction damper 53 is omitted are used, and although not shown, vibration damping means comprising a hydraulic damper, an elastic-plastic member, or the like is provided between the gantry 12 and the base 11. It can also be set as the structure arrange | positioned separately, and also in this case, the fall prevention effect | action similar to the case of the parallel links 42 and 43 with the said friction damper 53 and a vibration damping effect | action can be exhibited.

  Since the low friction member 13 is further in contact with the installation surface 3 in the three-dimensional overturn prevention device 1A according to the second embodiment, the three-dimensional overturn prevention device from the installation surface 3 as in the first embodiment. When the vibration in the front-rear or left-right direction is transmitted to 1, the three-dimensional fall-preventing device 1 itself is also displaced in the front-rear or left-right direction due to the sliding of the low-friction member 13, whereby the low-friction member 13 is not present. In comparison, the inclination of the object 2 due to the vibration can be suppressed.

  Next, referring to FIG. 8, a configuration that uses two two-dimensional fall prevention devices 1 </ b> A according to the second embodiment to suppress the vibration of the weighing device 30 that is one of the objects 2 and to prevent the fall. explain.

  In this case, as shown in FIG. 8, the three-dimensional overturn prevention devices 1 </ b> A having two pedestals 12 symmetrically installed at the bottoms on both sides in the front-rear direction of the weighing device 30 are arranged symmetrically. The three-dimensional overturn prevention device 1A similar to the above performs the three-dimensional vibration control of the front and rear, the left and right, and the upper and lower sides of the weighing device 30 and the overturn prevention, and further suppresses the inclination.

  According to the configuration shown in FIG. 8, the two three-dimensional fall prevention devices 1 </ b> A can effectively control the front and rear, the left and right, and the top and bottom of the weighing device 30, prevent the fall, and further suppress the inclination. Can do.

Also in this case, as the fall prevention mechanisms 15A of the two three-dimensional fall prevention devices 1A, the parallel links 42 and 43 in which the friction damper 53 is omitted are used, and although not shown, between the mount 12 and the base 11 It is also possible to adopt a configuration in which vibration damping means composed of a hydraulic damper, an elasto-plastic member, and the like are arranged separately. With this configuration, the same operation and effect as in the case of using the fall prevention mechanism 15A shown in FIG. It can be demonstrated.

In the configuration shown in FIG. 8, when an example of the load distribution by the weighing device 30 acting on the support mechanism 14 with the restoration function using the support pin 16 and the coil spring 18 is shown, the load acting on the support mechanism 14 with the restoration function on the front side is The load acting on the support mechanism 14 with the restoring function on the one side is, for example, 320 kg / 2, and the load on the one side is, for example, 160 kg / 2.
Moreover, the vertical frequency of the coil spring 18 of the support mechanism 14 with a restoring function on the front side can be 10 Hz, and the vertical frequency of the coil spring 18 of the support mechanism 14 with a restoring function on the rear side can be 6.5 Hz. Further, the vertical deflection of the gantry 12 can be given as an example of ± 10 mm. Each numerical value described above is displayed in FIG.

  In the above-described first and second embodiments, the object 2 covers the measuring device 30 and the like as described above, and the mounting dimensions and the like are different, but the three-dimensional overturn prevention device 1 according to the first and second embodiments, 1A can be easily attached to the object 2 of various dimensions.

  In the first and second embodiments described above, the support rigidity in the three-dimensional overturn prevention device 1 or 1A is set in consideration of the position of the center of gravity of the object 2, and in some cases, a configuration in which the gantry 12 is disposed in an inclined manner is adopted. It is also possible to do. Furthermore, the translation of the object 2 can be applied to effectively utilize the lateral rigidity of the three-dimensional overturn prevention device 1 or 1A.

  The present invention is not limited to the above-described case of controlling vibrations and preventing overturning in various measuring instruments as described above, as well as a computer device, a display stand for art treasures designated as national treasures and important cultural properties, precision instruments, and controls. It can be widely applied to prevent a wide range of objects such as equipment from falling during an earthquake. Preventing human damage caused by moving or overturning these equipment when an earthquake occurs and ensuring the normal operation of these equipment. Therefore, it is possible to prevent the occurrence of a secondary disaster by securing an evacuation route.

It is a schematic side view which shows schematic structure of the three-dimensional fall prevention apparatus which concerns on Example 1 of this invention. It is the sectional view on the AA line of FIG. It is operation | movement explanatory drawing of the fall prevention mechanism using the hydraulic damper in the three-dimensional fall prevention apparatus which concerns on the present Example 1. FIG. It is a schematic plan view which shows the structure which performs the fall prevention of a target object using two three-dimensional fall prevention apparatuses which concern on the present Example 1. FIG. It is a side view which shows schematic structure of the three-dimensional fall prevention apparatus which concerns on Example 2 of this invention. FIG. 6 is a sectional view taken along line B-B in FIG. 5. It is operation | movement explanatory drawing of the fall prevention mechanism using the parallel link in the three-dimensional fall prevention apparatus which concerns on the present Example 2. FIG. It is a schematic plan view which shows the structure which performs the fall prevention of a target object using two three-dimensional fall prevention apparatuses which concern on the present Example 2. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 3D fall prevention apparatus 1A 3D fall prevention apparatus 2 Target object 3 Installation surface 11 Base 12 Base 12a Front side edge part 12b Side edge part 13 Low friction member 14 Support mechanism with a restoring function 15 Fall prevention mechanism 15A Fall prevention mechanism 16 Support pin 17 Lower end plate 18 Coil spring 19 Upper end plate 21 Hydraulic damper 21a Cylinder rod 21b Cylinder 22 Hydraulic damper 22a Cylinder rod 22b Cylinder 23 Piping path 24 Piping path 25 Abutting plate 26 Abutting plate 27 Throttle valve 28 Throttle Valve 30 Metering device 42 Parallel link 43 Parallel link 45 Upper support plate 46 Lower support plate 47 Connecting body 48 Upper front link arm 49 Upper rear link arm 50 Lower front link arm 51 Lower rear link arm 52 Rotation support portion 53 Friction damper

Claims (7)

A base placed on the installation surface on which the object is installed;
A platform to be brought into contact with the bottom surface of the object above the base;
A low friction member interposed between the base and the installation surface;
A support mechanism with a restoring function, each disposed at a position corresponding to the front side and the rear side position of the object between the base and the gantry;
An overturn prevention mechanism for preventing the object from falling over by maintaining an inclination of the object in parallel with the base using an inclination force when the object is inclined between the base and the base; and
A three-dimensional fall prevention device characterized by comprising: A base placed on the installation surface on which the object is installed;
A platform to be brought into contact with the bottom surface of the object above the base;
A low friction member interposed between the base and the installation surface;
A support mechanism with a restoring function consisting of a spring support, a pin support or a bolt support respectively arranged at positions corresponding to the front side and rear side positions of the object between the base and the gantry;
A pair of two-port hydraulic dampers disposed between the base and the gantry at positions corresponding to the front and rear positions of the object; and a piping path that cross-connects the ports of the two hydraulic dampers to each other The displacement is caused by the inclination force applied to one hydraulic damper when the object is inclined, and the object is maintained in parallel with the base by linking the displacement of the other hydraulic damper by hydraulic movement. A fall prevention mechanism to prevent the fall of
A three-dimensional fall prevention device characterized by comprising: A base placed on the installation surface on which the object is installed;
A platform to be brought into contact with the bottom surface of the object above the base;
A low friction member interposed between the base and the installation surface;
A support mechanism with a restoring function consisting of a spring support, a pin support or a bolt support respectively arranged at positions corresponding to the front side and rear side positions of the object between the base and the gantry;
A pair of two-port hydraulic dampers disposed between the base and the gantry at positions corresponding to the front and rear positions of the object; and a piping path that cross-connects the ports of the two hydraulic dampers to each other The displacement is caused by the inclination force applied to one hydraulic damper when the object is inclined, and the object is maintained in parallel with the base by linking the displacement of the other hydraulic damper by hydraulic movement. With the fall prevention mechanism that prevents the fall of the three-dimensional fall prevention device,
A three-dimensional fall prevention device, wherein two of the three-dimensional fall prevention devices are arranged at the bottoms on both sides in the front-rear direction of the object so as to control the object and prevent three-dimensional falls. A base placed on the installation surface on which the object is installed;
A platform to be brought into contact with the bottom surface of the object above the base;
A low friction member interposed between the base and the installation surface;
A support mechanism with a restoring function consisting of a spring support, a pin support or a bolt support respectively arranged at positions corresponding to the front side and rear side positions of the object between the base and the gantry;
Between the base and the base, two sets of parallel links with friction dampers having a frictional force set to an arbitrary value in the vertical arrangement via the intermediate connecting body are rotatably arranged, A fall prevention mechanism for preventing the object from falling by maintaining the frame in parallel with the base by interlocking two sets of parallel links while performing vibration damping by the friction damper when the inclination of the object occurs.
A three-dimensional fall prevention device characterized by comprising: A base placed on the installation surface on which the object is installed;
A platform to be brought into contact with the bottom surface of the object above the base;
A low friction member interposed between the base and the installation surface;
A support mechanism with a restoring function consisting of a spring support, a pin support or a bolt support, each disposed at a position corresponding to a front side and a rear side position of the object between the base and the base;
Between the gantry and the base, two sets of parallel links with friction dampers having a frictional force set to an arbitrary value in the upper and lower arrangement via an intermediate connecting body are rotatably arranged, A fall-preventing mechanism for preventing the object from falling by maintaining the frame in parallel with the base by interlocking two sets of parallel links while performing vibration damping by the friction damper when the object is inclined. Dimensional fall prevention device
A three-dimensional fall prevention device, wherein two of the three-dimensional fall prevention devices are arranged at the bottoms on both sides in the front-rear direction of the object so as to control the object and prevent the three-dimensional fall. A base placed on the installation surface on which the object is installed;
A platform to be brought into contact with the bottom surface of the object above the base;
A low friction member interposed between the base and the installation surface;
A support mechanism with a restoring function consisting of a spring support, a pin support or a bolt support respectively arranged at positions corresponding to the front side and rear side positions of the object between the base and the gantry;
Between the gantry and the base, two sets of parallel links are arranged in a vertically arranged manner via an intermediate connecting body, and vibration damping means having a frictional force set to an arbitrary value is arranged. And an overturning prevention mechanism for preventing the object from falling over by maintaining the frame in parallel with the base by interlocking two sets of parallel links while performing vibration attenuation by the vibration attenuation means when the object is inclined. When,
A three-dimensional fall prevention device characterized by comprising: A base placed on the installation surface on which the object is installed;
A platform to be brought into contact with the bottom surface of the object above the base;
A low friction member interposed between the base and the installation surface;
A support mechanism with a restoring function consisting of a spring support, a pin support or a bolt support respectively arranged at positions corresponding to the front side and rear side positions of the object between the base and the gantry;
Between the gantry and the base, two sets of parallel links are arranged in a vertically arranged manner via an intermediate connecting body, and vibration damping means having a frictional force set to an arbitrary value is arranged. And an overturning prevention mechanism for preventing the object from falling over by maintaining the frame in parallel with the base by interlocking two sets of parallel links while performing vibration attenuation by the vibration attenuation means when the object is inclined. When,
Constitutes a three-dimensional fall prevention device,
A three-dimensional fall prevention device, wherein two of the three-dimensional fall prevention devices are arranged at the bottoms on both sides in the front-rear direction of the object so as to control the object and prevent three-dimensional falls.

Images