JP2006316943A - Horizontal displacement device or base isolation device and method of assembling device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a highly versatile horizontal displacement device or base isolation device which can cope with various sizes or weights of targets loaded onto the device, is simplified in structure and has a small number of kinds and a reduced number of component parts, and a method of assembling the device. <P>SOLUTION: A first horizontal displacement unit 30 having an overall width W is composed of upper and lower plates 32, 33 which are relatively movable in the longitudinal direction, each plate having a longitudinal length L and a width D. A second horizontal displacement unit 40 having an overall width L is composed of upper and lower plates 42, 43 each having a longitudinal length W and a width D'. The first horizontal displacement unit 30 and the second horizontal displacement unit 40 are integrally assembled so that the longitudinal directions thereof are perpendicular to each other. The width D is equal to the width D'. Balls 6 are employed as rolling elements. Ball grooves 34, 44 are made to intersect each other at an angle θ so that the balls slide and roll in the grooves. The ball grooves are respectively the deepest at their central portions 2c, 3c. Horizontal displacement component parts 31, 41 having a plurality of longitudinal lengths L are prepared and four or more component parts are selected and assembled so as to correspond to a required size. The standard longitudinal length is set at 450 mm and other longitudinal lengths are set to be larger than the standard one by 150 mm or multiples of 150 mm. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  More particularly, the present invention relates to a seismic isolation device and a method for assembling the same to protect a horizontal movement device for moving a loaded part, as well as articles such as computer servers and arts and crafts, and, in large cases, buildings and the like from vibrations and vibrations.

  An example of a horizontal movement device that allows the upper and lower plates to move relative to each other in the horizontal direction via rolling elements is a seismic isolation device. A bearing used in such a seismic isolation device, in other words, a horizontally moving part, such as one in which a ball is arranged between spherical plates as in Patent Document 1, a roller (wheel) that rolls on a curved rail as in Patent Document 2 ) Are arranged perpendicular to each other, as in Patent Document 3, an intermediate plate (member) is provided with a base plate (member) in which a ball is movably interposed between linearly extending ball grooves arranged opposite to each other. Commonly known are those arranged above and below the intermediate plate so that the direction of the ball groove is a right angle.

In Patent Document 1, the ball rolls horizontally between the spherical dishes so that the ball can freely move, and the ball automatically returns to the center when stopped. Three or more, preferably four or more of these horizontally moving parts are attached between the upper plate and the lower plate to form a seismic isolation device. Moreover, as shown in Patent Document 4, two horizontal moving parts are made into one set, and four sets are connected to connecting rods to increase the mounting area. Moreover, since the thing of patent document 2 is freely movable to the direction orthogonal to each on a curved rail, a horizontal swing is attained as a total, and the depth of the center part of a curved rail is made deep. The roller is automatically returned to the center position. By attaching two or more of these horizontally moving parts (specifically, two in the longitudinal direction and one in the width direction) between the upper plate and the lower plate and connecting them with two or more sets of connecting rods The mounting area is increased. In addition, in Patent Document 3, for example, the upper seismic isolation component can be moved in the X-axis direction and the lower seismic isolation component can be moved in the Y-axis direction. It becomes possible to move. Further, by increasing the depth of the central portion of the ball groove, the ball is automatically returned to the central position. These horizontally moving parts are attached to the foundation of a detached building.
JP 2005-054869 A Japanese Patent Application Laid-Open No. 2004-084817 JP 2001-173268 A Design Registration No. 1226711

  As described above, these seismic isolation devices are required to have various dimensions depending on the type and size of the building and the product to be mounted, in addition to the load bearing performance and the earthquake resistance performance. On the other hand, the bottom surfaces of fixtures such as cabinets and bookcases are formed in a rectangular shape, and the mounting space is generally about 450 mm to 900 mm in depth and width, and about 180 mm for long ones. When used as a horizontal moving device for such fixtures, especially as a seismic isolation device, it should not be as large as the fixture bottom size, has few parts, is easy to handle, and easily accommodates various dimensions in various combinations. It is desirable to be able to do it. However, in the case of the above-mentioned Patent Documents 1 and 3, since three or more support bodies are arranged each time, alignment, assembling work and the like are necessary, and auxiliary devices such as an anti-rotation device and a brake (friction) device. However, there is a problem that installation and adjustment are required each time, and skill is required, and the work is complicated and takes time. On the other hand, as in Patent Documents 2 and 4, two horizontal moving parts (supports) are attached in advance between the upper and lower plates to make one set, and the two sets of upper and lower plates are connected with connecting rods to adjust the length in the width direction. Various dimensions can be obtained as possible. On the other hand, several types with different lengths of the upper and lower plates are prepared in the longitudinal direction. Moreover, what is necessary is just to increase a group in a longitudinal direction and to connect with a connecting rod in a big thing.

  However, when the length of the connecting rod in the width direction is changed, there is a problem that the strength becomes weaker as the width becomes wider. To prevent this, it is necessary to prepare several types with different widths as well as the longitudinal direction of the upper and lower plates. Alternatively, the connecting rod must be enlarged. Further, when the loaded load increases with the increase in the longitudinal direction, it can be dealt with by increasing the number of support bodies. However, if the load increases with the increase in the width direction, it is necessary to increase the number of sets in the width direction or prepare a support body of a size that can withstand the load in the width direction and with a different width. . As described above, the conventional apparatus has a problem that a great number of kinds must be prepared depending on the size and the amount of the load.

  In view of the above-mentioned problems, the object of the present invention is to ensure strength even if there is an increase in the width direction, and can easily cope with an increase in the load load, and can be used for various sizes and load loads. It is to provide a horizontal movement device or seismic isolation device that can reduce the amount of vibration. Furthermore, the present invention provides a horizontal movement device or a seismic isolation device that has a simple structure that does not require a complicated brake device and that has a small number of parts and points. Furthermore, it is providing the assembly method of this horizontal movement apparatus or a seismic isolation apparatus.

  In the present invention, a first plate in which the upper and lower plates each having a longitudinal length of L and a width of D are movable relative to each other in the longitudinal uniaxial direction via two or more rolling elements arranged in the longitudinal direction. The upper plate and the lower plate are connected to each other so that the horizontal moving component and the two sets of the first horizontal moving component have a width W (2 × D ≦ W) in the width direction. The first horizontal moving unit in which the plate is relatively movable in the longitudinal one axis direction, and the upper and lower plates each having the longitudinal length W and the width D ′ are arranged in the longitudinal direction. A second horizontal moving component that is movable relative to each other in the longitudinal direction along the moving body and two sets of the second horizontal moving component have a width L in the width direction (where 2 × D ′ ≦ L). The upper plates and the lower plates are connected to each other A second horizontal movement unit in which the connected upper and lower plates are relatively movable in the longitudinal uniaxial direction, and the longitudinal direction of the horizontal movement component of the first horizontal movement unit and the second horizontal movement unit Horizontal movement fixed so that the lower plate side of the first horizontal movement unit overlaps the upper plate side of the second horizontal movement unit so that the longitudinal directions of the horizontal movement parts of the horizontal movement unit are orthogonal to each other. The problems described above were solved by providing a device or a seismic isolation device.

  That is, the width and length of the first horizontal movement unit and the second horizontal movement unit in which the upper and lower plates, which are relatively movable in the longitudinal uniaxial direction, are connected in the width direction are respectively equal to the length and width of the other side. Since the first horizontal moving unit is superimposed on the second horizontal moving unit and arranged at right angles to each other, horizontal moving parts are attached in both the width direction and the longitudinal direction as a total. Upper and lower plates are arranged. Therefore, the load can be received not only by the connecting rod for connecting but also by the upper and lower plates. It should be noted that the number of rolling elements for horizontal moving parts is two or more, and two moving parts are used because the moving device has at least three balls, and the upper and lower plates are tilted without supporting parts other than balls. This is because it becomes unstable and cannot function as a mobile device or seismic isolation device. The reason why the two sets of horizontally moving parts are connected is that they can be connected using connecting rods, spacers, or the like so that the dimension in the width direction can be changed. The loading surface is square when L = W. On the other hand, it becomes a rectangle when L ≠ W, and can be shaped to suit various fixtures.

  In the second aspect of the invention, since the width D and the width D ′ are equal, the parts of the upper and lower plates of the unit can be shared. According to a third aspect of the present invention, the rolling elements are balls, and ball grooves are provided on opposing surfaces of the upper and lower plates, and the ball grooves have an intersecting angle with each other.

  That is, if the moving parts are balls and ball grooves, the ball grooves intersect with each other and are moved along the bisector direction of the intersection angle, a friction coefficient substantially proportional to the intersection angle is obtained. Thereby, even if it does not provide an attenuation function outside, it provides a seismic isolation part with an attenuation function using a ball groove and a ball. When the ball groove and the moving direction are the same direction, the crossing angle is 0 degree, pure rolling occurs, the upper and lower ball grooves face each other in parallel, and the ball easily rolls between the ball grooves of the upper and lower guides. The friction coefficient at this time is a rolling resistance with extremely low friction of about 0.001 to 0.002. On the other hand, if one of the ball grooves is at a right angle and the crossing angle is 90 degrees, the ball rolls along one of the ball grooves, and the other ball groove slides and rotates in a direction perpendicular to the ball groove. In this case, the friction coefficient between the ball and the upper and lower ball grooves is the friction coefficient on the side where the ball rolls and rotates when the ball rolls along one groove. It becomes about 0.20. The value of the friction coefficient is determined by the material of the ball or ball groove, surface hardness, surface treatment, lubricating oil, shape, and the like.

  If this crossing angle is changed between 90 degrees and 0 degrees, and the upper and lower ball grooves are moved relative to each other via the ball, the slip between the ball and the ball groove decreases as the crossing angle decreases, and rolling occurs. As it increases, the coefficient of friction gradually decreases. The friction coefficient with respect to the crossing angle is pure rolling at the above-described crossing angle of 0 degrees, and the friction coefficient is the lowest, and the crossing angle is the largest at 90 degrees. Thereby, the friction coefficient between the ball and the ball groove can be changed by changing the crossing angle from 0 degree to 90 degrees. Therefore, an arbitrary friction coefficient can be obtained by appropriately determining the crossing angle.

  When used in seismic isolation devices, it is preferable to have an automatic return function. Therefore, in the invention of claim 4, the depth of the bottom of the ball groove of at least one of the opposing ball grooves gradually increases from both ends, and the depth of the bottom of the center is maximized. There was a seismic isolation device. In addition, if the deepest part is set to a part other than the center part, the position can be set as a position for automatic return, so the range of use for the horizontal movement device is widened.

  By adopting such a configuration, various sizes of horizontal movement devices or seismic isolation devices can be manufactured with a small number of parts. Accordingly, in the invention described in claim 5, the horizontal moving component according to claim 1 and 2 having a reference length in which the longitudinal direction length is determined is longer than the reference length by the same dimension. A plurality of horizontal moving parts prepared, and according to the required L and W dimensions, four or more sets are selected from the plurality of horizontal moving parts including the reference length. It was set as the assembly method of the horizontal movement apparatus or seismic isolation apparatus as described in any one. Thereby, various mounting areas can be configured with a small number of types.

  Furthermore, in the invention described in claim 6, the reference length is 450 mm, and the equal dimension is 150 mm. Thereby, the mounting area suitable for many of the dimensions used for fixtures in Japan can be obtained. For example, a mounting area of 450 □ to 900 □ can be secured by preparing four types of 450, 600, 750, and 900 mm. As in the prior art, a large placement area exceeding 900 mm can be secured by connecting a plurality of these.

  In the present invention, the first and second horizontal movement units that are relatively movable in the uniaxial direction are arranged so that the width and length of the first and second horizontal movement units coincide with the length and width of the other side, respectively. Since the horizontal movement device or seismic isolation device is arranged so that the first horizontal movement unit is superimposed on the top and at right angles to each other, the upper and lower plates are arranged in both the width direction and the longitudinal direction. It is possible to provide a horizontal movement device or a seismic isolation device that can be easily secured, can increase load resistance, rigidity, and strength even when the width direction is large, and can be applied to various loads, sizes, and types of mounted objects. It was. Further, in the invention described in claim 2, since the width D and the width D 'are equal and the parts of the upper and lower plates can be made common, it is possible to cope with a small number of parts.

  Further, in the invention according to claim 3, since the rolling elements are balls and the ball grooves have crossing angles with each other, and a desired coefficient of friction can be obtained, Seismic isolation devices were provided. In addition, the structure that does not require complicated brakes and damping devices is simple, the number of parts and the number of parts are small, and the design and installation are easy. Further, if the shape of the ball groove is changed and the crossing angle is changed, the friction coefficient can be changed according to the relative movement position.

  Further, in the invention of claim 4, since the depth of the bottom of the center of the ball groove is deeper than the both ends, and natural return is possible after rocking such as an earthquake, It can be a seismic isolation device.

  Further, in the invention described in claim 5, a plurality of horizontal moving parts having a predetermined length are prepared, and four or more sets are selected from the plurality of horizontal moving parts in accordance with required L and W dimensions. Because it is assembled in combination vertically and horizontally, it is easy to select and there is little inventory. In addition, assembly and repair on the site became easy.

  Furthermore, in the invention described in claim 6, the reference length is set to 450 mm, and for example, by preparing four types of 450, 600, 750, and 900 mm, it is possible to cover most of Japanese furniture and is highly versatile. It became a thing.

  Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view (schematic) of a horizontal movement unit showing an embodiment of the present invention, FIG. 2 is a perspective view for explaining a combination method, and FIG. It is a perspective view which shows a state. As shown in FIG. 1, the first horizontal moving component 31 includes upper and lower plates 32 and 33 having a longitudinal length L and a width D, and straight lines provided on the lower side of the upper plate and the upper side of the lower plate, respectively. A ball groove 34 is formed of a rail 35 provided on the surface (on the opposite plate side), and a ball 6 which can roll between vertically opposing ball grooves. The ball grooves 34 are formed along the longitudinal direction of the upper and lower plates, and the upper and lower plates can be moved relative to each other in the longitudinal direction via the balls 6 and can be moved relative to each other in the longitudinal direction. The first horizontal moving parts 31 are connected to each other by connecting rods 36 so that the two horizontal sets of the first horizontal moving parts 31 have a width W in the width direction (2 × D ≦ W). Unit 30 is assumed. As a result, the four upper and lower plates are supported by the four balls 6, and the first horizontal movement unit 30 enables the upper and lower plates to move relative to each other in the longitudinal uniaxial direction.

  On the other hand, as with the first horizontal movement unit 30, the second horizontal movement unit 40 has a second horizontal movement part 41 having a longitudinal direction as indicated by the reference numerals in parentheses “()” in FIG. Upper and lower plates 42 and 43 having a directional length of W and a width of D ′ and linear ball grooves 44 provided on the lower side of the upper plate and the upper side of the lower plate are provided on the surface (on the opposite plate side). The rail 45 and the ball 6 that can roll between the upper and lower ball grooves are configured. The ball grooves 44 are formed along the longitudinal direction of the upper and lower plates, and the upper and lower plates are movable relative to each other in the longitudinal direction via the balls 6 and are relatively movable in the longitudinal uniaxial direction indicated by arrows. The second horizontal moving parts 41 are connected to each other by connecting rods 46 so that the two horizontal moving parts 41 have a width L in the width direction (however, 2 × D ≦ W). Unit 40 is assumed. As a result, the four upper and lower plates are supported by the four balls 6, and the second horizontal movement unit 40 is capable of relative movement in the longitudinal uniaxial direction indicated by the arrows of the upper and lower plates.

  Although the moving part is a combination of a ball groove and a ball, a combination such as a rail and a wheel may be used. Further, the ball groove has a Gothic arch cross section so that the movement of the ball 6 is stabilized by allowing the ball to contact at two or more points.

  Next, as shown in FIG. 2 (a), the second horizontal movement unit 40 is rotated 90 degrees as viewed in the figure, placed at a predetermined position, and the first horizontal movement unit 40 on the upper plate 42 side of the second horizontal movement unit. The lower plate 33 side of the horizontal movement unit 30 is placed so as to overlap, the lower plate of the first horizontal movement unit and the upper plate 42 of the second horizontal movement unit are fixed, and the first and second horizontal movement units are integrated. And the horizontal moving device 100. As shown in FIG. 2B, the first and second horizontal movement units 30 and 40 can move uniaxially (indicated by arrows) in a direction perpendicular to each other. Accordingly, the first horizontal moving unit 30 above the upper plate 42 of the second horizontal moving unit 40 can be moved in the diagonally forward and backward directions with respect to the lower plate 43 of the second horizontal moving unit 40. Furthermore, the upper plate 32 of the first horizontal movement unit above the lower plate 33 of the first horizontal movement unit, that is, the placement surface 50 on which the placement object is placed is movable in the left-right direction as seen in the figure. Is done. Accordingly, the mounting surface 50 can be freely moved in the diagonally forward / backward and left / right directions as seen in the figure with respect to the lower plate 43 of the second horizontal movement unit 40, and functions as a horizontal movement device or seismic isolation device 100. . When used as a seismic isolation device, the depth of the bottom of the ball grooves 34 and 45 gradually increases from both ends, and if the depth of the bottom at the center is the largest, an automatic return function can be obtained. Further, the ball grooves and balls may be appropriately increased depending on the load and size.

  The horizontal movement device or seismic isolation device having such a configuration enables the horizontal movement of the placement surface 50 on which the article is placed as in the conventional case, and the upper and lower plates are also arranged in a perpendicular direction to increase strength and rigidity. Since the four corners contact each other between the plates connecting the two horizontal movement units in a rectangular shape, they can be firmly fixed to each other, and higher rigidity and strength can be obtained.

  The horizontal movement device or the seismic isolation device having such a configuration has a size suitable for a fixture or the like by making the width dimension common (D = D '), making the upper and lower plates common, and selecting an appropriate dimension. A horizontal movement device or a seismic isolation device having a placement surface can be obtained. FIG. 3 is a plan view of the first and second horizontal movement units. For example, as shown in FIG. 3, the longitudinal lengths of the upper and lower plates 32, 33, 42, and 44 having a width D = 225 mm smaller than 450 mm are manufactured by jumping 450, 600, 750, 900, and 150 (unit mm). These are prepared using the connecting rods 36 and 46, respectively, in the width direction of 450, 600, 750, and 900, respectively.

  This relationship is such that the longitudinal direction shown on the left in FIG. 3 is vertical, the second horizontal movement unit group whose movement direction (indicated by an arrow) is vertical in the figure, and the longitudinal direction shown on the right side in FIG. The moving direction (indicated by an arrow) is the first horizontal moving unit group in the left-right direction. As shown in FIG. 2, the first horizontal movement unit on the right side of the position (matrix) corresponding to the left side of FIG. By superimposing them together, a square or rectangular mounting surface with a distance of 150 mm from 450 to 900 squares can be obtained. For example, when building a seismic isolation device with a depth of 600 and a width of 900 to place fixtures, the * mark at the right end of the second stage on the left side of FIG. 3 and the * mark at the right end of the second stage on the right side of FIG. What is necessary is just to arrange.

  As described above, the four types of horizontal moving parts 31 and 41 and the connecting rods 36 and 46 for connecting these to the ten types of combinations can be constructed. In this way, if horizontal moving parts are created for the number of types of depth sizes, the width dimensions can be changed arbitrarily, and the types of parts of horizontal moving devices and seismic isolation devices with the total width of the depth dimensions can be selected. Can be reduced. As described above, according to the present embodiment, the design elements of the horizontal movement device or the seismic isolation device are modularized, and can be dealt with by combining several types of parts that are unified in various sizes and load resistance. Parts will be provided.

  Another embodiment will be described. 4A is a perspective view showing a horizontal movement device or seismic isolation device according to another embodiment of the present invention, FIG. 4A is a neutral view, FIG. 5B is a perspective view showing the movement, and FIG. FIG. 6 is an explanatory diagram of the operation of FIG. 5, and FIG. 7 is a measurement of the friction coefficient with respect to each crossing angle θ of the seismic isolation component (horizontal moving component) shown in FIGS. The horizontal axis is the crossing angle θ, and the vertical axis is the graph showing the friction coefficient μ. As shown in FIG. 4, it differs from the case described above in that the ball grooves are arranged so as to intersect between the upper and lower plates. The other parts are the same as those shown in FIGS. 1 to 3 described above, so the same reference numerals are given and a part of the description is omitted.

  As shown in FIG. 4, the rail 51 provided with the ball grooves 34 and 44 is attached so as to be inclined with respect to the longitudinal direction. With respect to the rails 51 of the lower plates 33 and 43, the rails 52 of the upper plates 32 and 43 are arranged so as to be symmetric with respect to the inclination of the rail 51 with the longitudinal direction as the center. The upper plate is provided with a separation preventing fixing plate 53 having an L-shaped cross section so that the lower plate is gripped by the L-shaped portion of the separation preventing fixing plate 53, and the upper and lower plates are not rotated. In addition to being guided so as to be movable in the direction, the upper and lower plates are prevented from being separated from each other in the vertical direction. With this configuration, the ball groove intersects the moving direction, so that the ball that directly receives the loaded load becomes a combined friction of the rolling and sliding surface against the ball groove, generating friction and damping with a constant friction coefficient type. The mechanism can be obtained and can be a horizontal movement device or a seismic isolation device 101 with a very simple damping mechanism.

  Describing in detail such crossing of the ball grooves, as shown in FIG. 5, the horizontally moving component 1 is provided with an upper guide portion 2 having a ball groove 4 provided in a linear shape on the lower surface side ( (Shown as a dotted line). Further, a lower guide portion 3 having a ball groove 5 provided linearly on the upper surface 3 b side is fixed to a base (a part of the lower plate) 13. A guide (not shown) is provided, and the upper guide portion 2 and the lower guide portion 3 are regulated so as to always have an intersection angle θ. Between the upper and lower ball grooves 4 and 5, there is provided a ball 6 which is fitted in both ball grooves and is slidable or rollable between both ball grooves. The vertical cross section of the ball groove (not shown) is such that the bottom portion is deepest at the centers 2c and 3c, and the ball is stable at the positions of the center positions 2c and 3c of the respective ball grooves.

  In such a configuration, when the upper guide portion 2 is moved with respect to the lower guide portion 3, the crossing angle θ is always regulated to be constant, so that the ball 6 is placed at the center 3c of the lower ball groove 5 as shown in FIG. In some cases, the upper guide portion can move only in the direction of the upper ball groove 4 and can move only in the range indicated by the arrow A. Similarly, when the ball 6 is in the upper right end 5r as viewed in the lower ball groove 5, the range similarly indicated by the arrow B, and when the ball is in the lower left end 5s as viewed in the lower ball groove, the same applies. Since only the range indicated by the arrow C can move, the upper guide portion 2 eventually moves within the range surrounded by the two-dot chain line 10. That is, the lower guide portion 3 and the upper guide portion 2 can be relatively horizontally moved within a range surrounded by a two-dot chain line 10. The longest moving distance is the maximum moving distance L in the bisector direction of the intersection angle, and the minimum moving distance S in the perpendicular direction.

  The friction coefficient of the horizontally moving component 1 composed of the opposing linear ball grooves will be described. For example, the friction coefficient at the time of movement of the upper guide portion 2 indicated by an arrow A is rolling and sliding friction between the ball 6 and the upper ball groove 4 and sliding friction between the ball and the lower ball groove 5. Slip is 0 when the ball 6 moves along the ball grooves 4 and 5, and becomes maximum when the ball rotates at right angles to the ball grooves, and the slip decreases as the crossing angle θ of the ball grooves decreases. Therefore, the friction coefficient for each crossing angle θ was measured. The result is shown in FIG. The ball material is SUJ2 (bearing steel), and the upper and lower guides are the same. The material is a tempered material of S45C, and the ball groove has a gothic arch cross section with a radius of 52% of the ball diameter and a tolerance angle of 50 °. And the groove depth is about 40% of the ball diameter. In addition, four sets of horizontally moving parts were equally arranged at the four corners for stabilization and measured.

  As shown in FIG. 7, when the crossing angle θ = 90 degrees, 0.15 which is the friction coefficient due to the same slip as in the conventional case is shown, and at the crossing angle θ = 0, the conventional ball groove is arranged in parallel and becomes pure rolling. The friction coefficient is about 0.001 to 0.002. When the crossing angle is greater than 0 ° and less than 90 °, the crossing angle θ = 30 °, the friction coefficient is 0.05, θ = 45 ° is 0.07, θ = 60 ° is 0.1, θ = 75 The friction coefficient is 0.12, and the friction coefficient is substantially equal to the value obtained by connecting the intersection angle 90 degrees and the intersection angle 0 degrees with the straight line F. Thus, it can be seen that the friction coefficient changes according to the crossing angle of the linear ball grooves, that is, the desired friction coefficient can be easily obtained by changing the crossing angle. In addition, when a higher friction coefficient is required, the friction coefficient may be increased by selecting a surface treatment or a material. When used as a seismic isolation device, the friction coefficient is preferably 0.03 to 0.08 (the crossing angle is approximately θ = 10 to 60 degrees, more preferably θ = 15 to 45 degrees). Thus, an appropriate friction coefficient can be easily obtained by appropriately selecting the crossing angle of the linear ball grooves.

  The ball groove may be straight and the crossing angle may be constant at all times, but the crossing angle may be changed halfway by bending the ball groove or drawing an arc. If the crossing angle is gradually increased, the friction coefficient is increased at the ball end to increase the braking performance, and the impact of the ball at the ball end, the impact between the guide groove and the stepped portion of the guide can be reduced.

  In addition, the horizontal movement device or the seismic isolation device can be further configured to be connectable in any direction, front and rear, and right and left. By utilizing this, for example, as shown in FIGS. 8A, 8B, and 8C, horizontal movement devices or seismic isolation devices can be arranged. In this way, if a horizontal moving device of the minimum size or the like (for example, 450 squares) is configured as the minimum unit, an arbitrary dimension can be configured for a size of at least 900 squares or more. For example, if four 450 squares are collected, it becomes 900 squares. In this case, possible dimensions are 450 × 900 and 900 × 900, and other large sizes can be arbitrarily taken by adjusting the connecting rods.

It is a perspective view (schematic) figure of a horizontal movement unit showing an embodiment of the invention. (A) which shows embodiment of this invention is a perspective view explaining the method of a combination, (b) is a perspective view which shows an operation state. It is the table | surface which arranged the kind of shape of the planar view of the 1st, 2nd horizontal movement unit which shows embodiment of this invention. (A) of the horizontal displacement apparatus or seismic isolation apparatus which shows other embodiment of this invention is a perspective view which shows the time of neutrality, and (b). It is a top view of the seismic isolation component (horizontal movement component) which consists of an opposing linear ball groove. FIG. 6 is an operation explanatory diagram of FIG. 5. The result of having measured the friction coefficient with respect to each crossing angle (theta) of the seismic isolation part (horizontal movement part) shown in FIG.5, 6 is shown, a horizontal axis shows crossing angle (theta), and a vertical axis | shaft shows the friction coefficient (micro | micron | mu). It is a perspective view which shows the example of the further combination of the horizontal displacement apparatus or seismic isolation apparatus of this invention.

Explanation of symbols

2c, 3c Central part 6 Rolling element (ball)
30 First horizontal moving unit 31 First horizontal moving part 32, 42 Upper plate 33, 43 Lower plate 34, 44 Ball groove 36, 46 Connecting rod 40 Second horizontal moving unit 41 Second horizontal moving part 100, 101 Horizontal moving parts or seismic isolation parts θ Crossing angle

Claims (6)

A first horizontal moving part which is movable relative to each other in a longitudinal uniaxial direction via two or more rolling elements arranged in the longitudinal direction on the upper and lower plates each having a longitudinal length L and a width D; The upper plates and the lower plates are connected to each other so that the two sets of the first horizontal moving parts have a width W (2 × D ≦ W) in the width direction, and the connected upper and lower plates are the longitudinal uniaxial. And a first horizontal moving unit which can be moved relative to each other in a direction and two or more rolling elements arranged in the longitudinal direction with upper and lower plates each having a longitudinal length of W and a width of D ′. The upper and lower plates are moved so that the second horizontal moving part and the second horizontal moving part, which are relatively movable in the longitudinal direction, have a width L (2 × D ′ ≦ L) in the width direction. The lower plates are connected to each other A second horizontal movement unit in which the upper and lower plates are movable relative to each other in the longitudinal direction. The longitudinal direction of the horizontal movement component of the first horizontal movement unit and the horizontal direction of the second horizontal movement unit Horizontal movement characterized by being fixed so that the lower plate side of the first horizontal movement unit overlaps the upper plate side of the second horizontal movement unit so that the longitudinal directions of the moving parts are orthogonal to each other. Device or seismic isolation device. The horizontal movement device or seismic isolation device according to claim 1, wherein the width D and the width D ′ are equal. The horizontal movement according to claim 1 or 2, wherein the rolling element is a ball, and ball grooves are provided on opposing surfaces of the upper and lower plates, and the ball grooves have crossing angles with each other. Device or seismic isolation device. 4. The depth of the bottom portion of at least one of the opposing ball grooves gradually increases from both ends, and the depth of the bottom portion of the center of the ball groove is the largest. The seismic isolation device described. A horizontal moving part having a reference length in which a length in a longitudinal direction of the horizontal moving part according to claim 1 is defined, and a plurality of horizontal moving parts each having an equal dimension longer than the reference length are prepared. The horizontal movement device or seismic isolation according to any one of claims 1 to 4, wherein four or more sets are selected from a plurality of horizontal movement parts including the reference length in accordance with the required L and W dimensions. A method of assembling a horizontal movement device or a seismic isolation device, comprising assembling the device. 6. The method for assembling a horizontal movement device or a seismic isolation device according to claim 5, wherein the reference length is 450 mm, and the equal dimension is 150 mm.

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