WO2006129534A1 - Xy guide device and base isolation device - Google Patents
Xy guide device and base isolation device Download PDFInfo
- Publication number
- WO2006129534A1 WO2006129534A1 PCT/JP2006/310322 JP2006310322W WO2006129534A1 WO 2006129534 A1 WO2006129534 A1 WO 2006129534A1 JP 2006310322 W JP2006310322 W JP 2006310322W WO 2006129534 A1 WO2006129534 A1 WO 2006129534A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- slide member
- track rail
- elastic sheet
- slide
- interposed
- Prior art date
Links
- 238000002955 isolation Methods 0.000 title claims abstract description 26
- 238000005096 rolling process Methods 0.000 claims description 38
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 230000005489 elastic deformation Effects 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000001771 impaired effect Effects 0.000 description 3
- 239000003921 oil Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/0633—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides
- F16C29/0635—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end
- F16C29/0638—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end with balls
- F16C29/0642—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end with balls with four rows of balls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/022—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising laminated structures of alternating elastomeric and rigid layers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/002—Elastic or yielding linear bearings or bearing supports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/008—Systems with a plurality of bearings, e.g. four carriages supporting a slide on two parallel rails
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/06—Specially-shaped heads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2350/00—Machines or articles related to building
Definitions
- the present invention relates to an XY guide device capable of freely moving an object to be mounted in a X direction and a Y direction orthogonal to each other on a fixed base, and more specifically, a track rail and a movable object along the track rail.
- the present invention relates to an XY guide device configured by stacking two such linear guide devices using a linear guide device combined with a simple slide member.
- this type of XY guide device has been widely used as a mechanism for moving a work table of a machine tool.
- it has also been used as a seismic isolation device to reduce the shaking of a load. It is used.
- This seismic isolation device is used as a vibration countermeasure when transporting precision instruments and art showcases, or as an earthquake countermeasure for real estate such as buildings and houses. It is used for the purpose of insulating the vibration force of the ground and reducing the shaking of the load due to the vibration (Japanese Patent Laid-Open No. 8-240033 etc.)
- This seismic isolation device has a first fixed in such a manner that a rolling surface of a rolling element such as a ball is formed along the longitudinal direction and is orthogonal to each of the base and the structure. And a second track rail, a first slide member that is assembled to the first track rail via a number of rolling elements and that can freely reciprocate linearly along the first track rail, and the first slide.
- the second slide member is fixed to the member and is assembled to the second track rail through a number of rolling elements, and can freely linearly reciprocate along the second track rail.
- this seismic isolation device uses two linear guide devices that combine track rails and slide members, and these linear guide devices are arranged along the X and Y directions, respectively, and are connected to each other.
- the structure can be guided freely in the X and Y directions on the base.
- FIG. 7 shows an example in which a building is constructed on the base 100 via the above-mentioned base isolation device G.
- the base isolation device G is arranged at four power points between the structure 101 and the base 100.
- the first track rail of each seismic isolation device G is fixed to the base 100 along the X direction, while the second track rail is fixed to the structure 101 along the Y direction perpendicular to the first track rail. ing.
- the slide member of each seismic isolation device moves on the track rail so as to absorb the swing. Move along the X or Y direction. That is, the structure 101 provided on the seismic isolation device G is insulated from the shaking of the base 100, and the soot is in a state of floating in the air. As a result, even if vibration energy due to an earthquake or the like propagates to the structure 101, the structure 101 can swing with its own vibration period regardless of the vibration period of the base 100. By setting the period sufficiently long, it is possible to avoid the resonance between the structure 101 and the substrate 100 and reduce the vibration of the strong structure 101.
- the second slide member is fixed to the first slide member.
- Patent Document 1 JP-A-8-240033
- the present invention has been made in view of such problems, and an object of the present invention is to provide a fixing bolt when connecting the second slide member to the first slide member with the fixing bolt. Even if it is tightened to a certain extent, the deformation amount of the rubber shim between the first slide member and the second slide member can be kept small, and this is the case when the load of the structure acts on the seismic isolation device.
- an object of the present invention is to provide an XY guide device capable of preventing the fastening force of the bolt from being released.
- the XY guide device of the present invention includes a first track rail in which a rolling surface of a rolling element is formed along a longitudinal direction, and a rolling surface of the rolling element that is formed along a longitudinal direction.
- a second track rail arranged orthogonally to the first track rail, and assembled to the first track rail via a number of rolling elements, and freely reciprocating freely along the first track rail.
- a movable first slide member fixed to the first slide member, and assembled to the second track rail via a number of rolling elements, and freely movable along the second track rail And a second slide member capable of linear reciprocation.
- the first slide member freely moves in the X direction along the first track rail.
- the second slide member fixed to the first slide member also moves in the X direction.
- the second track rail perpendicular to the first track rail can be moved by the second slide member in the ⁇ direction, and this structure is fixed when the structure is fixed to the second track rail.
- the structure can move freely in the X and heel directions relative to the base.
- an elastic sheet is interposed between the first slide member and the second slide member, while the second slide member is fixed to the first slide member by a fixing means. It is combined.
- the elastic sheet is slightly crushed between the first slide member and the second slide member, and the second slide The member is coupled to the first slide member while being biased in a direction away from the first slide member.
- the elastic sheet absorbs the elastic sheet by elastic deformation. The smoothness of the reciprocating motion of the first slide member relative to the rail and the reciprocating motion of the second slide member relative to the second track rail are not impaired.
- the second slide member is moved to the first slide by the fixing means. Even if strongly coupled to the member, the gap absorbing member is crushed before the elastic sheet between the first slide member and the second slide member is crushed.
- the second slide member can be firmly fixed to the first slide member in a state where a sufficient amount of collapse of the elastic sheet is left. That is, since the elastic sheet can sufficiently absorb the change in the relative posture between the first slide member and the second slide member, the first slide member with respect to the first track rail The smoothness of the reciprocating movement of the second sliding member relative to the second track rail will not be impaired.
- the fixing means prevents the second slide member force from floating and prevents the play between the first slide member and the second slide member from occurring. Is possible.
- the gap absorbing member may be any member such as a rubber sheet, a spring coil, or a spring washer as long as it has a smaller spring constant than the elastic sheet.
- the elastic body It is necessary for the gap absorbing member to be stretched as much as the sheet is crushed. From this point of view, it is preferable that the gap absorbing member has a large deformation with respect to the load.
- FIG. 1 is a perspective view showing an embodiment of a heel guide device of the present invention.
- FIG. 2 is a perspective view showing a combination of a track rail and a slide member used in the heel guide device shown in FIG. 1.
- FIG. 3 is a front view showing a state in which the first slide member and the second slide member are coupled via a bracket.
- FIG. 4a is a schematic diagram showing the positional relationship between the elastic sheet and the gap absorbing member when the fixing bolt is not fastened.
- FIG. 4b is a schematic diagram showing deformation of the elastic sheet and the gap absorbing member in a state where the fixing bolt is fastened.
- FIG. 4c is a schematic view showing a state of deformation of the elastic sheet and the gap absorbing member when a load F is applied to the second slide member.
- FIG. 5a is a schematic diagram showing an example in which a disc spring washer is used as a gap absorbing member, and a state in which a fixed bolt is not fastened.
- FIG. 5b shows an example in which a disc spring washer is used as a gap absorbing member, and is a schematic diagram showing a state of deformation of an elastic sheet and a gap absorbing member in a state where a fixing bolt is fastened.
- FIG. 6a is a schematic diagram showing an example in which a posture following member is interposed between a gap absorbing member and a second slide member, and showing a state in which a fixing bolt is not fastened.
- FIG. 6b is a schematic diagram showing a state in which a posture following member is interposed between the gap absorbing member and the second slide member, and the fixed bolt is fastened.
- FIG.7 Shows an example of constructing a structure on a base using an XY guide device as a seismic isolation device.
- FIG. 1 shows an example of an embodiment of a heel guide device to which the present invention is applied.
- This gutter guide device G is provided, for example, between a base 1 that is the foundation of a building and a structure 2 such as a building, and supports it on the base 1 against the load of the striking structure 2 Used for The
- the XY guide device G includes a first track rail 10 fixed to the base 1, a first slide member 11 assembled to the first track rail 10, and the first track rail 10.
- a second track rail 12 fixed to the structure 2 such as a building so as to intersect perpendicularly, and a second track rail 12 assembled to the second track rail 12 and fixed to the first slide member 11 And a slide member 13.
- Each track rail is formed with a plurality of ball rolling grooves along the longitudinal direction, and each of the slide members 11 and 13 has a large number of balls rolling in the ball rolling grooves. As the ball rolls, the slide members 11 and 13 can move freely on the track rails 10 and 12 with a very small dynamic friction resistance!
- the first slide member 11 and the second slide member 13 are exactly the same member, and are fixed back to back through a bracket. Since the first track rail 10 and the second track rail 12 are provided orthogonal to each other, the first slide member 11 moves along the first track rail 10 and the second slide member. When 13 moves along the second rail 12, the structure 2 moves two-dimensionally on the base 1.
- FIG. 2 is a perspective view showing an example of a combination of a track rail and a slide member that can be used in the XY guide device of the present invention, that is, an example of a linear guide device.
- the linear guide device 3 engages with the track rail 4 through the track rail 4 in which the rolling surface 40 of the ball 30 is formed along the longitudinal direction, and a large number of balls 30 as rolling elements.
- the slide member 5 is configured to reciprocate on the track rail 4 as the powerful ball 30 circulates.
- the track rail 4 is formed in a substantially rectangular cross section, and mounting holes 41 for allowing the fixing bolts to pass therethrough are formed at appropriate intervals in the longitudinal direction.
- two ball rolling grooves 40 are formed on the upper surface of the track rail 4 so as to sandwich the mounting hole 41, and one ball rolling groove 40 is formed on each side surface.
- the four ball rolling grooves 40 are formed in a deep groove shape with a curvature slightly larger than the curvature of the spherical surface of the ball 30.
- the slide member 5 includes a block main body 51 provided with the mounting surface 50 of the bracket, and a pair of end plates 52 and 52 fixed to both front and rear end faces of the block main body 51.
- the upper surface of the track rail 4 is formed in a substantially saddle shape with a recess on the lower surface side.
- the block main body 51 is formed with four ball rolling grooves that face the ball rolling grooves 40 on the track rail 4 side. The ball 3 rolls while applying a load between the ball rolling groove of the block body and the ball rolling groove 40 of the track rail, so that the slide member 5 moves on the track rail 4. Become.
- ball return holes corresponding to the respective ball rolling grooves are formed in the block body 51, and these ball return holes are formed in a substantially U-shaped direction change formed in the end plate 52.
- a ball (not shown) communicates with the ball rolling groove. That is, this direction change path picks up the ball 30 that has finished rolling in the ball rolling groove of the block body 51 and sends it to the ball return hole, while sending the ball 30 to the ball rolling groove. It is configured as follows. Therefore, when these end plates 52 are fixed to the block body 51 using the mounting bolts 53, an infinite circulation path for the balls 30 is formed on the slide member 5!
- the end plate 52 is provided with an oil supply port for injecting lubricating oil into the endless circulation path, and a supply nip 54 is connected to the oil supply port via the end seal 6. It comes to be installed!
- FIG. 3 shows a combined state of the first slide member 11 and the second slide member 13 in the XY guide device G.
- a rectangular metal bracket 7 is interposed between the first slide member 11 and the second slide member 13, and the fixing bolt 70 passing through the first slide member 11 and the second slide member.
- Fixing bolts 71 penetrating 13 are fastened to the bracket 7 respectively.
- the first slide member 11 and the second slide member 13 are coupled to each other.
- the second slide member 13 can be directly fastened to the first slide member 11 using the fixing bolt 71 without using the metal bracket 7.
- the elastic sheet 8 is made of rubber, and the second slide member 13 should prevent the local load from acting on the resilient elastic sheet 8 with two steel plates 80. , 80 between the bracket 7 and the second slide member 13.
- a fixing bolt 71 for fixing the second slide member 13 passes through the steel plate 80 and the elastic sheet 8 and is fastened to the bracket 7.
- a gap absorbing member 9 having an elastic body force is interposed between the second slide member 13 and the head of the fixing bolt 71.
- the gap absorbing member 9 is obtained by sandwiching a rubber sheet 90 between two steel plates 91, 91, and fixing bolts 7 When 1 is fastened, the steel plates 91 and 91 crush the rubber sheet 90 and elastically deform it.
- FIGS. 4a to 4c are schematic views simply showing the deformation of the elastic sheet 8 and the gap absorbing member 9 when the fixing bolt 71 is fastened.
- the elastic sheet 8 and the gap absorbing member 9 are depicted as springs.
- the spring constant of the rubber sheet 90 is set to be smaller than the spring constant of the elastic sheet 8.
- the fixing bolt 71 is fastened and the second slide member 13 and the bracket 7 are tightened.
- the thickness of the gap absorbing member 9 is greatly reduced compared to the amount by which the thickness of the dielectric sheet 8 is reduced.
- the elastic sheet 8 has sufficient room for elastic deformation, and the first slide member 11 and the second slide The original function of the elastic sheet 8 that absorbs a change in relative posture with the slide member 13 can be fully exhibited.
- FIGS. 5 a and 5 b show an example in which a disc spring washer 92 is used as the gap absorbing member 9.
- two disc spring washers 92 face each other, and these are interposed between the head of the fixing bolt 71 and the second slide member 13.
- the spring constant of each disc spring washer 92 is set so that the total spring constant considering all the disc spring washers 92 is smaller than the spring constant of the elastic sheet 8. That is, the second slide member 13 is fixed to the bracket 7 with six fixing bolts 71, and two disc spring washers 92 are overlapped on each fixing bolt 71. Thus, a total of 12 disc spring washers 92 are interposed in series or in parallel.
- the total spring constant of these disc spring washers 92 is set to be smaller than the spring constant of the elastic sheet 8, and the disc spring washer 92 is fixed to the fixing bolt 71 and the second slide as shown in FIG. 5a.
- the fixing bolt 71 is fastened to the bracket 7 in this state, the disc spring washer 92 is crushed more than the elastic sheet 8, as shown in FIG. It is possible to fasten the second slide member 13 and the bracket 7 while giving sufficient room for elastic deformation to the body sheet 8.
- the disc spring washer 92 is used as the gap absorbing member 9.
- the weight of the structure 2 acts in the direction in which the second slide member 13 is pressed against the bracket 7, the fastening force of the fixing bolt 71 that couples the second slide member 13 and the bracket 7 is released.
- Such as lowering the shear strength of the fixing bolt, further loosening of the fixing bolt due to vertical vibration, and twisting of the second slide member relative to the first slide member. Can be prevented.
- the two disc spring washers 92 are used so as to face each other.
- a plurality of spring washers 92 may be used. Further, it is not always necessary to interpose a plurality of disc spring washers 92 with respect to one fixing bolt 71. It is also possible to interpose only one disc spring washer 92. In any case, the number and the stacking direction of the disc spring washers 92 can be arbitrarily determined according to the spring constant and the stroke amount required for the disc spring washer 92 as the gap absorbing member 9.
- FIG. 6A and 6B show an example in which a posture follower member 93 is interposed between the disc spring washer 92 as the gap absorbing member 9 and the second slide member 13.
- This posture following member 93 has a spherical surface protruding toward the second slide member 13, and when the fixing bolt 71 is tightened, as shown in FIG.
- the spherical slide 94 formed on the second slide member 13 is in sliding contact with no gap.
- the point that the disc spring washer 92 is crushed rather than the elastic sheet 8 when the fixing bolt 71 is fastened to the bracket 7 is the same as the example of FIG. It is possible to fasten the second slide member 13 and the bracket 7 while providing room for
- the elastic sheet 8 is provided to absorb a change in the posture of the second slide member 13 that moves along the second track rail 12. Therefore, if a posture tracking member 93 having a convex spherical surface is interposed between the head of the fixing bolt 71 and the second slide member 13, the convex spherical surface 93 becomes the spherical seat of the second slide member 13. By making sliding contact with 94, the change of the second slide member 13 relative to the head of the fixing bolt 71 can be facilitated. As a result, the posture of the second slide member 13 fastened to the bracket 7 by the fixing bolt 71 can be easily changed, and the original function of the elastic sheet 8 can be effectively exhibited. It can be done.
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- Architecture (AREA)
- General Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
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- Vibration Prevention Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
An XY guide device and a base isolation device. In the XY guide device, even if fixing bolts (71) are strongly tightened to connect a second slide member (13) to a first slide member (11), the deformed amount of a rubber shim (8) between the first slide member (11) and the second slide member (13) can be suppressed, and even if a load acts between these slide members (11) and (13), the tightening forces of the bolts (71) can be prevented from being reduced. The XY guide device comprises the first slide member (11) movable in an X-direction along a first track rail (10), the second slide member (13) movable in a Y-direction along a second track rail (12), the elastic body sheet (8) interposed between these first and second slide members (11) and (13), and the fixing means (71) connecting the second slide member (13) to the first slide member (11) so as to press down the elastic body sheet (8). A clearance absorbing member (9) with a spring constant smaller than that of the elastic body sheet (8) is interposed between the fixing means (71) and the second slide member (13).
Description
明 細 書 Specification
XY案内装置 XY guidance device
技術分野 Technical field
[0001] 本発明は、固定ベースにおいて互いに直交する X方向及び Y方向へ被搭載物を 自在に移動させることが可能な XY案内装置に係り、詳細には、軌道レールとこれに 沿って移動可能なスライド部材とを組み合わせた直線案内装置を用い、かかる直線 案内装置を 2基積み重ねて構成した XY案内装置に関する。 [0001] The present invention relates to an XY guide device capable of freely moving an object to be mounted in a X direction and a Y direction orthogonal to each other on a fixed base, and more specifically, a track rail and a movable object along the track rail. The present invention relates to an XY guide device configured by stacking two such linear guide devices using a linear guide device combined with a simple slide member.
背景技術 Background art
[0002] 従来から、この種の XY案内装置は工作機械のワークテーブルの移動機構として多 用されて ヽるが、近年にお!ヽては被搭載物の揺れを軽減する免震装置としても用い られている。この免震装置は、精密機器や美術品のショーケース等を搬送する際の 振動対策として、あるいはビルや住宅といった不動産の地震対策として利用され、精 密機器やビル等の被搭載物を床面や地面の振動力 絶縁し、かかる振動に起因し た被搭載物の揺れを軽減する目的で用いられている(特開平 8— 240033号公報等 [0002] Conventionally, this type of XY guide device has been widely used as a mechanism for moving a work table of a machine tool. However, in recent years, it has also been used as a seismic isolation device to reduce the shaking of a load. It is used. This seismic isolation device is used as a vibration countermeasure when transporting precision instruments and art showcases, or as an earthquake countermeasure for real estate such as buildings and houses. It is used for the purpose of insulating the vibration force of the ground and reducing the shaking of the load due to the vibration (Japanese Patent Laid-Open No. 8-240033 etc.)
) o ) o
[0003] この免震装置は、長手方向に沿ってボール等の転動体の転走面が形成されると共 に、基盤及び構造体の夫々に対して互いに直交するように固定された第 1及び第 2 軌道レールと、多数の転動体を介して第 1軌道レールに組み付けられると共に該第 1 軌道レールに沿って自在に直線往復運動可能な第 1のスライド部材と、この第 1のス ライド部材に対して固定されると共に多数の転動体を介して第 2軌道レールに組み付 けられ、該第 2軌道レールに沿って自在に直線往復運動可能な第 2のスライド部材と から構成されており、地震等によって基盤が震動すると、各軌道レールとこれらに組 み付けられたスライド部材とが相対的な直線往復運動を行うようになって 、る。すなわ ち、この免震装置は軌道レールとスライド部材とを組み合わせた直線案内装置を 2基 用い、これら直線案内装置を夫々 X方向及び Y方向に沿つて配設すると共に互いに 結合することで、構造体を基盤上で X方向及び Y方向へ自在に案内し得るように構 成されている。
[0004] 図 7は基盤 100上に前述の免震装置 Gを介して建物を構築した例を示すものであり 、構造体 101と基盤 100との間の 4力所に免震装置 Gが配置されている。各免震装置 Gの第 1軌道レールが X方向に沿って前記基盤 100に固定される一方、第 2軌道レ 一ルは第 1軌道レールと直交する Y方向に沿って構造体 101に固定されている。前 記軌道レールとスライド部材との間の動摩擦係数は極めて小さいため、基盤 100が 地震等によって水平方向へ揺れ動くと、かかる揺れを吸収するようにして各免震装置 のスライド部材が軌道レール上を X方向又は Y方向に沿って移動する。すなわち、免 震装置 G上に設けられた構造体 101は基盤 100の揺れから絶縁されており、恰も空 気中に浮遊したような状態となっている。これにより、地震等による振動エネルギが構 造体 101に伝播したとしても、構造体 101は基盤 100の振動周期とは無関係にそれ 独自の振動周期で揺れることができるので、構造体 101の固有振動周期を十分に長 く設定することで、構造体 101と基盤 100との共振を避け、力かる構造体 101の振動 を軽減することが可能となる。 [0003] This seismic isolation device has a first fixed in such a manner that a rolling surface of a rolling element such as a ball is formed along the longitudinal direction and is orthogonal to each of the base and the structure. And a second track rail, a first slide member that is assembled to the first track rail via a number of rolling elements and that can freely reciprocate linearly along the first track rail, and the first slide. The second slide member is fixed to the member and is assembled to the second track rail through a number of rolling elements, and can freely linearly reciprocate along the second track rail. When the base shakes due to an earthquake or the like, each track rail and the slide member assembled to the track rail perform relative linear reciprocation. In other words, this seismic isolation device uses two linear guide devices that combine track rails and slide members, and these linear guide devices are arranged along the X and Y directions, respectively, and are connected to each other. The structure can be guided freely in the X and Y directions on the base. FIG. 7 shows an example in which a building is constructed on the base 100 via the above-mentioned base isolation device G. The base isolation device G is arranged at four power points between the structure 101 and the base 100. Has been. The first track rail of each seismic isolation device G is fixed to the base 100 along the X direction, while the second track rail is fixed to the structure 101 along the Y direction perpendicular to the first track rail. ing. Since the coefficient of dynamic friction between the track rail and the slide member is extremely small, when the base 100 swings in the horizontal direction due to an earthquake or the like, the slide member of each seismic isolation device moves on the track rail so as to absorb the swing. Move along the X or Y direction. That is, the structure 101 provided on the seismic isolation device G is insulated from the shaking of the base 100, and the soot is in a state of floating in the air. As a result, even if vibration energy due to an earthquake or the like propagates to the structure 101, the structure 101 can swing with its own vibration period regardless of the vibration period of the base 100. By setting the period sufficiently long, it is possible to avoid the resonance between the structure 101 and the substrate 100 and reduce the vibration of the strong structure 101.
[0005] この免震装置では第 1のスライド部材に対して第 2のスライド部材が固定されている [0005] In the seismic isolation device, the second slide member is fixed to the first slide member.
1S 例えばビルの地震対策としての免震装置の場合、基盤 looにおける第 1軌道レ ールの固定面、または構造体 101における第 2軌道レールの固定面の平滑性は低く ならざるを得ず、第 1軌道レール及び第 2軌道レールは多少波うつた状態で前記基 盤 100又は構造体 101に固定されていることが予想される。このため、第 1軌道レー ルに沿って移動する第 1のスライド部材と第 2軌道レールに沿って移動する第 2のスラ イド部材を遊びなく強固に結合した場合、各軌道レールに対する各スライド部材の軽 快な移動が妨げられ、構造体 101の揺れの吸収 '軽減といった当初の目的を十分に 達成できなくなってしまう。 1S For example, in the case of a seismic isolation device as an earthquake countermeasure for buildings, the smoothness of the fixed surface of the first track rail in the base loo or the fixed surface of the second track rail in the structure 101 must be low. It is expected that the first track rail and the second track rail are fixed to the base 100 or the structure 101 in a slightly wavy state. Therefore, when the first slide member that moves along the first track rail and the second slide member that moves along the second track rail are firmly coupled without play, each slide member for each track rail Therefore, it is difficult to achieve the initial objective of absorbing and reducing the shaking of the structure 101.
[0006] このため、軌道レールとスライド部材とから構成される直線案内装置を 2基積み重ね て免震装置を構成する場合は、互いに結合される第 1のスライド部材と第 2のスライド 部材との間にゴムシムを介在させ、力かるゴムシムを挟み込んだ状態で第 1のスライド 部材と第 2のスライド部材に固定ボルトを挿通させ、この固定ボルトを締結して前記ゴ ムシムを僅かに潰すようにして第 1のスライド部材と第 2のスライド部材とを結合してい た。これにより、第 1軌道レール又は第 2軌道レールの取付面の平滑性が多少悪い
場合であっても、前記ゴムシムが弾性変形することで、第 1のスライド部材と第 2のスラ イド部材との間に生じる姿勢変化を吸収し、各軌道レールに対する各スライド部材の 軽快な移動を可能として 、た。 [0006] For this reason, when two seismic isolation devices are configured by stacking two linear guide devices each composed of a track rail and a slide member, the first slide member and the second slide member coupled to each other With a rubber shim interposed between them, a fixing bolt is inserted through the first slide member and the second slide member with the rubber shim sandwiched between them, and the fixing bolt is tightened so that the rubber shim is slightly crushed. The first slide member and the second slide member were coupled. As a result, the smoothness of the mounting surface of the first track rail or the second track rail is somewhat poor. Even in this case, the rubber shim is elastically deformed to absorb a change in posture generated between the first slide member and the second slide member, so that each slide member can be moved easily with respect to each track rail. As possible.
特許文献 1:特開平 8— 240033号公報 Patent Document 1: JP-A-8-240033
発明の開示 Disclosure of the invention
発明が解決しょうとする課題 Problems to be solved by the invention
[0007] しかし、前記第 2のスライド部材を第 1のスライド部材に固定するにあたり、固定ボル トをあまりに大きな締結力で締めつけると、第 1のスライド部材と第 2のスライド部材の 間に介装したゴムシムが固定ボルトの締結力のみで大きく押し潰されてしまうといった 不具合があり、力かるゴムシムが第 1のスライド部材に対する第 2のスライド部材の姿 勢変化を十分に吸収することができなくなってしまう。 [0007] However, when fixing the second slide member to the first slide member with a too large fastening force, the second slide member is interposed between the first slide member and the second slide member. There is a problem that the rubber shim is crushed greatly only by the fastening force of the fixing bolt, and the strong rubber shim cannot sufficiently absorb the change in the posture of the second slide member relative to the first slide member. End up.
[0008] その一方、固定ボルトの締結力を弱めに設定した場合、ゴムシムの弾性変形量は 大きくとることができるので、第 1のスライド部材に対する第 2のスライド部材の姿勢変 化は十分に吸収することが可能となる。しかし、免震装置を組み立てた後に、構造体 となるビルを免震装置の上で施工し、かかる免震装置に対して徐々に構造体の大き な荷重が作用してくると、この荷重によって第 1のスライド部材と第 2のスライド部材の 間に介装したゴムシムが押し潰され、固定ボルトの頭部が第 2のスライド部材力 浮き 上がってしまうので、固定ボルトの締結力が開放されてしまうといった不具合があった 。このことは、固定ボルトの剪断耐力の低下、上下振動による固定ボルトの更なる緩 み、第 1のスライド部材に対する第 2のスライド部材の捩れ発生といった問題点を誘引 するものと考えられる。 [0008] On the other hand, when the fastening force of the fixing bolt is set to be weak, the elastic deformation of the rubber shim can be increased, so that the change in the posture of the second slide member relative to the first slide member is sufficiently absorbed. It becomes possible to do. However, after the seismic isolation device is assembled, a building that will be a structure is constructed on the seismic isolation device, and when a large load of the structure gradually acts on the seismic isolation device, this load causes Since the rubber shim interposed between the first slide member and the second slide member is crushed and the head of the fixing bolt is lifted up by the force of the second slide member, the fastening force of the fixing bolt is released. There was a problem such as. This is considered to induce problems such as a decrease in the shear strength of the fixing bolt, further loosening of the fixing bolt due to vertical vibration, and the occurrence of twisting of the second slide member relative to the first slide member.
課題を解決するための手段 Means for solving the problem
[0009] 本発明はこのような問題点に鑑みなされたものであり、その目的とするところは、第 1 のスライド部材に第 2のスライド部材を固定ボルトで結合するにあたり、固定ボルトをあ る程度まで強く締結しても第 1のスライド部材と第 2のスライド部材との間のゴムシムの 変形量を小さく抑えることができ、これにより構造体の荷重が免震装置に作用した場 合であっても、ボルトの締結力が開放されるのを防止することが可能な XY案内装置 を提供することにある。
[0010] 本発明の XY案内装置は、長手方向に沿って転動体の転走面が形成された第 1の 軌道レールと、長手方向に沿って転動体の転走面が形成されると共に前記第 1の軌 道レールに対して直交配置された第 2の軌道レールと、多数の転動体を介して前記 第 1の軌道レールに組み付けられると共に該第 1の軌道レールに沿って自在に直線 往復運動可能な第 1のスライド部材と、この第 1のスライド部材に対して固定されると 共に多数の転動体を介して第 2の軌道レールに組み付けられ、該第 2の軌道レール に沿って自在に直線往復運動可能な第 2のスライド部材とを備えて 、る。 [0009] The present invention has been made in view of such problems, and an object of the present invention is to provide a fixing bolt when connecting the second slide member to the first slide member with the fixing bolt. Even if it is tightened to a certain extent, the deformation amount of the rubber shim between the first slide member and the second slide member can be kept small, and this is the case when the load of the structure acts on the seismic isolation device. However, an object of the present invention is to provide an XY guide device capable of preventing the fastening force of the bolt from being released. [0010] The XY guide device of the present invention includes a first track rail in which a rolling surface of a rolling element is formed along a longitudinal direction, and a rolling surface of the rolling element that is formed along a longitudinal direction. A second track rail arranged orthogonally to the first track rail, and assembled to the first track rail via a number of rolling elements, and freely reciprocating freely along the first track rail. A movable first slide member, fixed to the first slide member, and assembled to the second track rail via a number of rolling elements, and freely movable along the second track rail And a second slide member capable of linear reciprocation.
[0011] これにより、例えば第 1の軌道レールを X方向に沿って基盤に固定した際に、前記 第 1のスライド部材が第 1の軌道レールに沿って X方向へ自在に移動し、この第 1のス ライド部材に固定された第 2のスライド部材も X方向へ運動することになる。一方、第 1 の軌道レールと直交する第 2の軌道レールは第 2のスライド部材によって Υ方向へ自 在に運動可能となり、力かる第 2の軌道レールに対して構造体を固定すると、この構 造体は前記基盤に対して X方向及び Υ方向へ自在に運動可能となる。 Accordingly, for example, when the first track rail is fixed to the base along the X direction, the first slide member freely moves in the X direction along the first track rail. The second slide member fixed to the first slide member also moves in the X direction. On the other hand, the second track rail perpendicular to the first track rail can be moved by the second slide member in the Υ direction, and this structure is fixed when the structure is fixed to the second track rail. The structure can move freely in the X and heel directions relative to the base.
[0012] また、第 1のスライド部材と第 2のスライド部材との間には弾性体シートが介装される 一方、前記第 2のスライド部材は前記第 1のスライド部材に対して固定手段により結合 されている。前記固定手段で第 1のスライド部材と第 2のスライド部材とを結合すると、 前記弾性体シートが第 1のスライド部材と第 2のスライド部材との間で僅かに押し潰さ れ、第 2のスライド部材は第 1のスライド部材と離間する方向へ付勢された状態で前 記第 1のスライド部材と結合されている。これにより、第 1のスライド部材と第 2のスライ ド部材との間で相対的な姿勢が変化しても、前記弾性体シートが弾性変形することに よってそれを吸収するので、第 1の軌道レールに対する第 1のスライド部材の往復運 動、第 2の軌道レールに対する第 2のスライド部材の往復運動の円滑性が損なわれる ことがない。 [0012] Further, an elastic sheet is interposed between the first slide member and the second slide member, while the second slide member is fixed to the first slide member by a fixing means. It is combined. When the first slide member and the second slide member are coupled by the fixing means, the elastic sheet is slightly crushed between the first slide member and the second slide member, and the second slide The member is coupled to the first slide member while being biased in a direction away from the first slide member. As a result, even if the relative posture changes between the first slide member and the second slide member, the elastic sheet absorbs the elastic sheet by elastic deformation. The smoothness of the reciprocating motion of the first slide member relative to the rail and the reciprocating motion of the second slide member relative to the second track rail are not impaired.
[0013] もっとも、第 2のスライド部材に対してこれを第 1のスライド部材に向けて押圧する方 向の荷重が作用すると、前記弾性体シートが第 1のスライド部材と第 2のスライド部材 との間で更に押し潰されてしまうことから、固定手段が第 2のスライド部材から浮き上 力 Sつてしまい、第 1のスライド部材と第 2のスライド部材の結合に遊びが生じてしまう可 能性がある。
[0014] このため、本発明の XY案内装置では、前記固定手段と第 2のスライド部材との間に 隙間吸収部材を設け、この隙間吸収部材のばね定数を前記弾性体シートのばね定 数よりも小さく設定している。このように、前記弾性体シートのばね定数よりも小さなば ね定数の隙間吸収部材を固定手段と第 2のスライド部材との間に設けると、固定手段 によって第 2のスライド部材を第 1のスライド部材に対して強力に結合しても、第 1のス ライド部材と第 2のスライド部材との間の弾性体シートが押し潰される前に、前記隙間 吸収部材が押し潰される結果となるので、前記弾性体シートの潰れ代を十分に残し た状態で第 2のスライド部材を第 1のスライド部材に対して強固に固定することができ る。すなわち、前記弾性体シートが第 1のスライド部材と第 2のスライド部材との間の相 対的な姿勢の変化を十分に吸収することができるので、第 1の軌道レールに対する 第 1のスライド部材の往復運動、第 2の軌道レールに対する第 2のスライド部材の往 復運動の円滑性が損なわれることがな ヽ。 [0013] However, when a load is applied to the second slide member in a direction in which the second slide member is pressed toward the first slide member, the elastic sheet is moved to the first slide member, the second slide member, and the like. May be further crushed between the two slide members, causing the fixing means to lift from the second slide member and cause play in the connection between the first slide member and the second slide member. There is. [0014] Therefore, in the XY guide device of the present invention, a gap absorbing member is provided between the fixing means and the second slide member, and the spring constant of the gap absorbing member is determined from the spring constant of the elastic sheet. Is set too small. As described above, when the gap absorbing member having a spring constant smaller than the spring constant of the elastic sheet is provided between the fixing means and the second slide member, the second slide member is moved to the first slide by the fixing means. Even if strongly coupled to the member, the gap absorbing member is crushed before the elastic sheet between the first slide member and the second slide member is crushed. The second slide member can be firmly fixed to the first slide member in a state where a sufficient amount of collapse of the elastic sheet is left. That is, since the elastic sheet can sufficiently absorb the change in the relative posture between the first slide member and the second slide member, the first slide member with respect to the first track rail The smoothness of the reciprocating movement of the second sliding member relative to the second track rail will not be impaired.
[0015] また、第 2のスライド部材に対してビル等の構造体の荷重が作用して前記弾性体シ ートが更に押し潰されたとしても、かかる弾性体シートが潰された分だけ前記隙間吸 収部材が伸びを生じるので、固定手段が第 2のスライド部材力 浮き上がってしまうの を防止し、第 1のスライド部材と第 2のスライド部材の結合に遊びが生じるのを未然に 防ぐことが可能となる。 [0015] Also, even if a load of a structure such as a building acts on the second slide member and the elastic sheet is further crushed, the elastic sheet is crushed by the amount crushed. Since the gap absorbing member expands, the fixing means prevents the second slide member force from floating and prevents the play between the first slide member and the second slide member from occurring. Is possible.
[0016] 前記隙間吸収部材としては、前記弾性体シートよりもばね定数の小さなものであれ ば、例えばゴムシート、スプリングコイル、スプリングヮッシャ等、いかなるものであって も差し支えない。但し、第 2のスライド部材に対して大きな荷重が作用して、前記弾性 体シートが押し潰された場合に、固定手段が第 2のスライド部材力 浮きあがるのを 防止するためには、弾性体シートの潰れた分だけ隙間吸収部材に伸びが生じること が必要であり、かかる観点からすれば、前記隙間吸収部材としては、荷重に対する変 形量が大きなものが好まし 、。 [0016] The gap absorbing member may be any member such as a rubber sheet, a spring coil, or a spring washer as long as it has a smaller spring constant than the elastic sheet. However, when a large load is applied to the second slide member and the elastic sheet is crushed, in order to prevent the fixing means from lifting the second slide member force, the elastic body It is necessary for the gap absorbing member to be stretched as much as the sheet is crushed. From this point of view, it is preferable that the gap absorbing member has a large deformation with respect to the load.
図面の簡単な説明 Brief Description of Drawings
[0017] [図 1]本発明の ΧΥ案内装置の実施の形態を示す斜視図である。 FIG. 1 is a perspective view showing an embodiment of a heel guide device of the present invention.
[図 2]図 1に示す ΧΥ案内装置に使用される軌道レール及びスライド部材の組み合わ せを示す斜視図である。
[図 3]ブラケットを介して第 1のスライド部材と第 2のスライド部材とを結合した様子を示 す正面図である。 FIG. 2 is a perspective view showing a combination of a track rail and a slide member used in the heel guide device shown in FIG. 1. FIG. 3 is a front view showing a state in which the first slide member and the second slide member are coupled via a bracket.
[図 4a]固定ボルトが未締結の状態での弾性体シート及び隙間吸収部材の位置関係 を示す模式図である。 FIG. 4a is a schematic diagram showing the positional relationship between the elastic sheet and the gap absorbing member when the fixing bolt is not fastened.
[図 4b]固定ボルトを締結した状態での弾性体シート及び隙間吸収部材の変形の様 子を示す模式図である。 FIG. 4b is a schematic diagram showing deformation of the elastic sheet and the gap absorbing member in a state where the fixing bolt is fastened.
[図 4c]第 2のスライド部材に対して荷重 Fが作用した際の弾性体シート及び隙間吸収 部材の変形の様子を示す模式図である。 FIG. 4c is a schematic view showing a state of deformation of the elastic sheet and the gap absorbing member when a load F is applied to the second slide member.
[図 5a]隙間吸収部材として皿ばねワッシャーを用いた例を示すものであり、固定ボル トが未締結の状態を示す模式図である。 FIG. 5a is a schematic diagram showing an example in which a disc spring washer is used as a gap absorbing member, and a state in which a fixed bolt is not fastened.
[図 5b]隙間吸収部材として皿ばねワッシャーを用いた例を示すものであり、固定ボル トを締結した状態での弾性体シート及び隙間吸収部材の変形の様子を示す模式図 である。 FIG. 5b shows an example in which a disc spring washer is used as a gap absorbing member, and is a schematic diagram showing a state of deformation of an elastic sheet and a gap absorbing member in a state where a fixing bolt is fastened.
[図 6a]隙間吸収部材と第 2のスライド部材との間に姿勢追従部材を介装した例を示す ものであり、固定ボルトが未締結の状態を示す模式図である。 FIG. 6a is a schematic diagram showing an example in which a posture following member is interposed between a gap absorbing member and a second slide member, and showing a state in which a fixing bolt is not fastened.
[図 6b]隙間吸収部材と第 2のスライド部材との間に姿勢追従部材を介装し、固定ボル トを締結した状態を示す模式図である。 FIG. 6b is a schematic diagram showing a state in which a posture following member is interposed between the gap absorbing member and the second slide member, and the fixed bolt is fastened.
[図 7]XY案内装置を免震装置として利用し、基盤上に構造体を構築した例を示すも のである。 [Fig.7] Shows an example of constructing a structure on a base using an XY guide device as a seismic isolation device.
符号の説明 Explanation of symbols
[0018] 1…基盤、 2…構造体、 8…弾性体シート、 9…隙間吸収部材、 10…第 1の軌道レー ル、 11"'第1のスラィド部材、 12· ··第 2の軌道レール、 13· ··第 2のスライド部材、 71 …固定ボノレト、 90· ··ゴムシート [0018] 1 ... base, 2 ... structure, 8 ... elastic sheet, 9 ... gap absorbing member, 10 ... first track rail, 11 "'first slide member, 12 ... second track Rail, 13 ··· Second slide member, 71… Fixed Bonoret, 90 ··· Rubber sheet
発明を実施するための最良の形態 BEST MODE FOR CARRYING OUT THE INVENTION
[0019] 以下、添付図面を用いながら、本発明の ΧΥ案内装置を詳細に説明する。 Hereinafter, the wrinkle guide device of the present invention will be described in detail with reference to the accompanying drawings.
[0020] 図 1は本発明を適用した ΧΥ案内装置の実施の形態の一例を示すものである。この ΧΥ案内装置 Gは、例えば建造物の土台となる基盤 1と建造物等の構造体 2との間に 設けられ、力かる構造体 2の荷重に抗してこれを基盤 1上に支承するために用いられ
る。 FIG. 1 shows an example of an embodiment of a heel guide device to which the present invention is applied. This gutter guide device G is provided, for example, between a base 1 that is the foundation of a building and a structure 2 such as a building, and supports it on the base 1 against the load of the striking structure 2 Used for The
[0021] 前記 XY案内装置 Gは、前記基盤 1に固定される第 1軌道レール 10と、この第 1軌 道レール 10に組み付けられた第 1のスライド部材 11と、前記第 1軌道レール 10と直 交するようにして建造物などの構造体 2に固定される第 2軌道レール 12と、この第 2 軌道レール 12に組み付けられると共に前記第 1のスライド部材 11に対して固定され た第 2のスライド部材 13とから構成されている。各軌道レールには長手方向に沿って 複数条のボール転走溝が形成される一方、各スライド部材 11, 13にはこのボール転 走溝を転走する多数のボールが内蔵されており、これらボールの転走によってスライ ド部材 11, 13が各軌道レール 10, 12上を極小さな動摩擦抵抗で自在に移動し得る ようになって!/、る。第 1のスライド部材 11及び第 2のスライド部材 13は全く同一の部材 であり、ブラケットを介して互いに背中合わせに固定されている。そして、第 1軌道レ ール 10と第 2軌道レール 12は互いに直交して設けられていることから、第 1のスライド 部材 11が第 1軌道レール 10に沿って移動し、第 2のスライド部材 13が第 2軌道レー ル 12に沿って移動すると、構造体 2が基盤 1上で二次元的に移動することになる。 [0021] The XY guide device G includes a first track rail 10 fixed to the base 1, a first slide member 11 assembled to the first track rail 10, and the first track rail 10. A second track rail 12 fixed to the structure 2 such as a building so as to intersect perpendicularly, and a second track rail 12 assembled to the second track rail 12 and fixed to the first slide member 11 And a slide member 13. Each track rail is formed with a plurality of ball rolling grooves along the longitudinal direction, and each of the slide members 11 and 13 has a large number of balls rolling in the ball rolling grooves. As the ball rolls, the slide members 11 and 13 can move freely on the track rails 10 and 12 with a very small dynamic friction resistance! The first slide member 11 and the second slide member 13 are exactly the same member, and are fixed back to back through a bracket. Since the first track rail 10 and the second track rail 12 are provided orthogonal to each other, the first slide member 11 moves along the first track rail 10 and the second slide member. When 13 moves along the second rail 12, the structure 2 moves two-dimensionally on the base 1.
[0022] 図 2は、本発明の XY案内装置に使用可能な軌道レールとスライド部材の組み合わ せの一例、すなわち直線案内装置の一例を示す斜視図である。この直線案内装置 3 は、長手方向に沿ってボール 30の転走面 40が形成された軌道レール 4と、転動体と しての多数のボール 30を介してこの軌道レール 4に係合すると共に内部に該ボール 30の無限循環路を備えたスライド部材 5と、このスライド部 5の移動方向の前後両端 面に装着されると共に軌道レール 4の上面及び両側面に密着するシール部材 6とか ら構成されており、力かるボール 30の循環に伴って前記スライド部材 5が軌道レール 4上を往復運動するように構成されて ヽる。 FIG. 2 is a perspective view showing an example of a combination of a track rail and a slide member that can be used in the XY guide device of the present invention, that is, an example of a linear guide device. The linear guide device 3 engages with the track rail 4 through the track rail 4 in which the rolling surface 40 of the ball 30 is formed along the longitudinal direction, and a large number of balls 30 as rolling elements. Consists of a slide member 5 having an infinite circulation path for the ball 30 inside, and a seal member 6 that is attached to both front and rear end surfaces in the moving direction of the slide portion 5 and is in close contact with the upper surface and both side surfaces of the track rail 4. The slide member 5 is configured to reciprocate on the track rail 4 as the powerful ball 30 circulates.
[0023] この図に示されるように、前記軌道レール 4は断面略矩形状に形成されており、固 定ボルトを揷通させるための取り付け孔 41が長手方向に適宜間隔をおいて貫通形 成されている。また、軌道レール 4の上面には前記取り付け孔 41を挟むようにして 2 条のボール転走溝 40が形成される一方、両側面にも 1条のボール転走溝 40が夫々 形成されており、これら 4条のボール転走溝 40はボール 30の球面の曲率よりも僅か に大きな曲率で深溝状に形成されて ヽる。
[0024] 一方、前記スライド部材 5は、前記ブラケットの取付け面 50を備えたブロック本体 51 と、このブロック本体 51の前後両端面に固定された一対のエンドプレート 52, 52と力 ら構成されており、軌道レール 4の上部が遊嵌する凹所を下面側に備えて断面略サ ドル状に形成されている。また、前記ブロック本体 51には軌道レール 4側のボール転 走溝 40と夫々対向する 4条のボール転走溝が形成されて 、る。ボール 3はブロック本 体のボール転走溝と軌道レールのボール転走溝 40との間で荷重を負荷しながら転 走し、これによつてスライド部材 5が軌道レール 4上を移動することになる。 [0023] As shown in this figure, the track rail 4 is formed in a substantially rectangular cross section, and mounting holes 41 for allowing the fixing bolts to pass therethrough are formed at appropriate intervals in the longitudinal direction. Has been. In addition, two ball rolling grooves 40 are formed on the upper surface of the track rail 4 so as to sandwich the mounting hole 41, and one ball rolling groove 40 is formed on each side surface. The four ball rolling grooves 40 are formed in a deep groove shape with a curvature slightly larger than the curvature of the spherical surface of the ball 30. On the other hand, the slide member 5 includes a block main body 51 provided with the mounting surface 50 of the bracket, and a pair of end plates 52 and 52 fixed to both front and rear end faces of the block main body 51. The upper surface of the track rail 4 is formed in a substantially saddle shape with a recess on the lower surface side. The block main body 51 is formed with four ball rolling grooves that face the ball rolling grooves 40 on the track rail 4 side. The ball 3 rolls while applying a load between the ball rolling groove of the block body and the ball rolling groove 40 of the track rail, so that the slide member 5 moves on the track rail 4. Become.
[0025] また、ブロック本体 51には各ボール転走溝に対応するボール戻し孔が夫々穿設さ れており、これらボール戻し孔は前記エンドプレート 52に形成された略 U字型の方向 転換路(図示せず)によってボール転走溝と連通連結されている。すなわち、この方 向転換路はブロック本体 51のボール転走溝を転走し終えたボール 30を掬い上げて 前記ボール戻し孔へ送り込む一方、このボール戻し孔力 ボール転走溝へボール 3 0を送り出すように構成されている。従って、これらエンドプレート 52が取付けボルト 5 3を用 、てブロック本体 51に固定されることにより、前記スライド部材 5にボール 30の 無限循環路が形成されるようになって!/ヽる。 [0025] In addition, ball return holes corresponding to the respective ball rolling grooves are formed in the block body 51, and these ball return holes are formed in a substantially U-shaped direction change formed in the end plate 52. A ball (not shown) communicates with the ball rolling groove. That is, this direction change path picks up the ball 30 that has finished rolling in the ball rolling groove of the block body 51 and sends it to the ball return hole, while sending the ball 30 to the ball rolling groove. It is configured as follows. Therefore, when these end plates 52 are fixed to the block body 51 using the mounting bolts 53, an infinite circulation path for the balls 30 is formed on the slide member 5!
[0026] 更に、前記エンドプレート 52には前記無限循環路に対して潤滑油を注油するため の給油口が設けられており、かかる給油口には前記エンドシール 6を介して供給ニッ プル 54が装着されるようになって!/、る。 Furthermore, the end plate 52 is provided with an oil supply port for injecting lubricating oil into the endless circulation path, and a supply nip 54 is connected to the oil supply port via the end seal 6. It comes to be installed!
[0027] 一方、図 3は、前記 XY案内装置 Gにおける第 1のスライド部材 11と第 2のスライド部 材 13の組み合わせ状態を示すものである。第 1のスライド部材 11と第 2のスライド部 材 13との間には矩形状の金属製ブラケット 7が介装され、第 1のスライド部材 11を貫 通した固定ボルト 70及び第 2のスライド部材 13を貫通した固定ボルト 71が前記ブラ ケット 7に対して夫々締結されている。これにより、第 1のスライド部材 11と第 2のスライ ド部材 13とが互いに結合されている。尚、前記金属ブラケット 7を用いず、固定ボルト 71を用いて第 2のスライド部材 13を第 1のスライド部材 11に対して直接締結すること も可能である。 On the other hand, FIG. 3 shows a combined state of the first slide member 11 and the second slide member 13 in the XY guide device G. A rectangular metal bracket 7 is interposed between the first slide member 11 and the second slide member 13, and the fixing bolt 70 passing through the first slide member 11 and the second slide member. Fixing bolts 71 penetrating 13 are fastened to the bracket 7 respectively. Thereby, the first slide member 11 and the second slide member 13 are coupled to each other. Note that the second slide member 13 can be directly fastened to the first slide member 11 using the fixing bolt 71 without using the metal bracket 7.
[0028] もっとも、第 1のスライド部材 11と第 2のスライド部材 13の双方を金属塊であるブラケ ット 7に対して直接固定した場合、第 1軌道レール 10を走行する第 1のスライド部材 1
1は該第 1軌道レール 10に追従して姿勢を変化させようとする反面、第 2のスライド部 材 13の姿勢にも拘束されるので、基盤 1における第 1軌道レール 10の取付け面、ま たは構造体 2における第 2軌道レール 12の取付け面の平滑性が低いと、各軌道レー ル 10, 12に対する各スライド部材 11, 13の円滑な走行が妨げられるといった不都合 がある。このため、前記ブラケット 7と第 2のスライド部材 13との間には弾性体シート 8 が介装され、この弾性体シート 8の弾性変形によって第 1のスライド部材 11と第 2のス ライド部材 13との間の相対的な姿勢の変化を吸収するように構成されている。 However, when both the first slide member 11 and the second slide member 13 are directly fixed to the bracket 7 which is a metal block, the first slide member traveling on the first track rail 10 is used. 1 While 1 tries to change the posture following the first track rail 10, it is also restrained by the posture of the second slide member 13, so the mounting surface of the first track rail 10 on the base 1 is also the same. Or, if the smoothness of the mounting surface of the second track rail 12 in the structure 2 is low, there is an inconvenience that the smooth running of the slide members 11 and 13 with respect to the track rails 10 and 12 is hindered. Therefore, an elastic sheet 8 is interposed between the bracket 7 and the second slide member 13, and the first slide member 11 and the second slide member 13 are elastically deformed by the elastic sheet 8. It is configured to absorb the change in relative posture between and.
[0029] 前記弾性体シート 8はゴム製であり、力かる弾性体シート 8に対して第 2のスライド部 材 13力も局所的な荷重が作用するのを防止すベぐ 2枚のスチールプレート 80, 80 に挟まれた状態でブラケット 7と第 2のスライド部材 13との間に位置している。第 2のス ライド部材 13を固定する固定ボルト 71はこれらスチールプレート 80及び弾性体シー ト 8を貫通して、前記ブラケット 7に締結されている。 [0029] The elastic sheet 8 is made of rubber, and the second slide member 13 should prevent the local load from acting on the resilient elastic sheet 8 with two steel plates 80. , 80 between the bracket 7 and the second slide member 13. A fixing bolt 71 for fixing the second slide member 13 passes through the steel plate 80 and the elastic sheet 8 and is fastened to the bracket 7.
[0030] 一方、弾性体シート 8をブラケット 7と第 2のスライド部材 13との間に介装した状態で 固定ボルト 71を締結し過ぎてしまうと、力かる弾性体シート 8が該締結力によってブラ ケット 7と第 2のスライド部材 13との間で押し潰されてしま 、、弾性体シート 8を介装し た本来の目的、すなわち第 1のスライド部材 11と第 2のスライド部材 13との間の相対 的な姿勢の変化を吸収するという機能が損なわれてしまう懸念がある。その反面、固 定ボルト 71の締結を緩くすると、力かる固定ボルトの締結力に起因して弾性体シート が押し潰される量は軽減される力 第 2のスライド部材 13に対して構造体 2の自重が 作用した場合に、カゝかる自重によって弾性体シート 8が押し潰されるので、固定ボルト の頭部が第 2のスライド部材カも浮いてしまうといった不都合がある。固定ボルト 71の 頭部が第 2のスライド部材カも浮き上がってしまうと、力かる固定ボルト 71の締結力が 完全に開放されてしまい、固定ボルトの剪断耐力の低下、上下振動による固定ボルト の更なる緩み、第 1のスライド部材に対する第 2のスライド部材の捩れ発生といった問 題点が引き起こされる。 [0030] On the other hand, if the fixing bolt 71 is tightened too much with the elastic sheet 8 interposed between the bracket 7 and the second slide member 13, the resilient elastic sheet 8 is caused by the tightening force. After being crushed between the bracket 7 and the second slide member 13, the original purpose with the elastic sheet 8 interposed therebetween, that is, the first slide member 11 and the second slide member 13 There is a concern that the function of absorbing the relative change in posture may be impaired. On the other hand, if the fastening of the fixing bolt 71 is loosened, the amount by which the elastic sheet is crushed due to the fastening force of the strong fixing bolt is reduced. When the dead weight acts, the elastic sheet 8 is crushed by the raised dead weight, so that there is a disadvantage that the head of the fixing bolt also floats the second slide member. When the head of the fixing bolt 71 is also lifted by the second slide member, the tightening force of the fixing bolt 71 is completely released, the shear strength of the fixing bolt is reduced, and the fixing bolt is renewed due to vertical vibration. This causes problems such as loosening and twisting of the second slide member relative to the first slide member.
[0031] このため、第 2のスライド部材 13と固定ボルト 71の頭部との間には弾性体力もなる 隙間吸収部材 9が介装されている。図 3に示す例において、前記隙間吸収部材 9は ゴムシート 90を 2枚のスチールプレート 91, 91で挟み込んだものであり、固定ボルト 7
1を締結するとスチールプレート 91, 91がゴムシート 90を押し潰して弾性変形させる ようになっている。 [0031] For this reason, a gap absorbing member 9 having an elastic body force is interposed between the second slide member 13 and the head of the fixing bolt 71. In the example shown in FIG. 3, the gap absorbing member 9 is obtained by sandwiching a rubber sheet 90 between two steel plates 91, 91, and fixing bolts 7 When 1 is fastened, the steel plates 91 and 91 crush the rubber sheet 90 and elastically deform it.
[0032] 図 4a〜図 4cは固定ボルト 71を締結した際の弾性体シート 8及び隙間吸収部材 9の 変形の様子を簡易的に示した模式図である。これらの図において前記弾性体シート 8及び隙間吸収部材 9はばねとして描かれている。前記ゴムシート 90のばね定数は 前記弾性体シート 8のばね定数よりも小さく設定されており、図 4a及び図 4bに示すよ うに、固定ボルト 71を締結して第 2のスライド部材 13とブラケット 7とを結合すると、弹 性体シート 8の厚さが減少する量に比べ、隙間吸収部材 9の厚さが大きく減少するよ うに構成されている。このため、第 2のスライド部材 13とブラケット 7とを結合した後で あっても、前記弾性体シート 8に関しては弾性変形の余地が十分に残されており、第 1のスライド部材 11と第 2のスライド部材 13との間の相対的な姿勢の変化を吸収する という該弾性体シート 8の本来の機能を十二分に発揮することができるものである。 FIGS. 4a to 4c are schematic views simply showing the deformation of the elastic sheet 8 and the gap absorbing member 9 when the fixing bolt 71 is fastened. In these drawings, the elastic sheet 8 and the gap absorbing member 9 are depicted as springs. The spring constant of the rubber sheet 90 is set to be smaller than the spring constant of the elastic sheet 8. As shown in FIGS. 4a and 4b, the fixing bolt 71 is fastened and the second slide member 13 and the bracket 7 are tightened. Are combined such that the thickness of the gap absorbing member 9 is greatly reduced compared to the amount by which the thickness of the dielectric sheet 8 is reduced. For this reason, even after the second slide member 13 and the bracket 7 are joined, the elastic sheet 8 has sufficient room for elastic deformation, and the first slide member 11 and the second slide The original function of the elastic sheet 8 that absorbs a change in relative posture with the slide member 13 can be fully exhibited.
[0033] また、図 4cに示すように、第 2のスライド部材 13とブラケット 7とを結合した後に、力 力る第 2のスライド部材 13に対して構造体 2から荷重 Fが作用し、前記弾性体シート 8 が弾性変形してその厚さが減少したとしても、固定ボルト 71の頭部とブラケット 7との 距離は何ら変化せず、前記弾性体シート 8の厚さが減少した分だけ隙間吸収部材 9 の厚さが復元することにより、固定ボルト 71の頭部が第 2のスライド部材 13から完全 に浮いてしまうといったトラブルを防止することができる。このため、 XY案内装置の第 2のスライド部材 13上に構造体 2を構築し、力かる構造体 2の自重が第 2のスライド部 材 13をブラケット 7へ押し付ける方向へ作用したとしても、第 2のスライド部材 13とブラ ケット 7とを結合している固定ボルト 71の締結力が解放されてしまうことはなぐ固定ボ ルト 71の剪断耐力の低下、上下振動による固定ボルト 71の更なる緩み、第 1のスライ ド部材 11に対する第 2のスライド部材 13の捩れ発生と 、つた問題点の発生を防止す ることが可能となる。 Further, as shown in FIG. 4c, after the second slide member 13 and the bracket 7 are coupled, a load F is applied from the structural body 2 to the powerful second slide member 13, Even if the elastic sheet 8 is elastically deformed and its thickness is reduced, the distance between the head of the fixing bolt 71 and the bracket 7 does not change at all, and the gap is the same as the thickness of the elastic sheet 8 is reduced. By restoring the thickness of the absorbing member 9, it is possible to prevent a trouble that the head of the fixing bolt 71 is completely lifted from the second slide member 13. For this reason, even if the structure 2 is constructed on the second slide member 13 of the XY guide device and the weight of the forceful structure 2 acts in the direction of pressing the second slide member 13 against the bracket 7, The fastening bolt 71 that joins the slide member 13 of 2 and the bracket 7 is not released from the fastening force.The shear strength of the fixing bolt 71 is reduced, and the fixing bolt 71 is further loosened due to vertical vibration. It is possible to prevent the occurrence of twisting of the second slide member 13 with respect to the first slide member 11 and the occurrence of the problems.
[0034] このようなゴムシート 90、すなわち隙間吸収部材 9の機能を考慮した場合、固定ボ ルト 71を締結した際のゴムシート 90の弾性変形量があまりに小さいと、結局は弾性 体シート 8が固定ボルト 71の締結によって押し潰されてしまうことになり、また、荷重 F の作用によって減少する弾性体シート 8の厚みに対して前記ゴムシート 90の厚みの
増加分が小さいと、固定ボルト 71の頭部が第 2のスライド部材 13から浮いてしまうこと になる。このような観点からすれば、前記隙間吸収部材 9の所定荷重に対する弾性 変形量は弾性体シート 8のそれよりも大きいことが必要であり、且つ、前記隙間吸収 部材 9の弾性変形可能なストローク量が弾性体シート 8のそれよりも大きく設定されて いることが必要である。 [0034] In consideration of the function of such a rubber sheet 90, that is, the gap absorbing member 9, if the amount of elastic deformation of the rubber sheet 90 when the fixing bolt 71 is fastened is too small, the elastic sheet 8 eventually becomes The thickness of the rubber sheet 90 is reduced with respect to the thickness of the elastic sheet 8 which is reduced by the action of the load F. If the increase is small, the head of the fixing bolt 71 will float from the second slide member 13. From this point of view, the elastic deformation amount for the predetermined load of the gap absorbing member 9 needs to be larger than that of the elastic sheet 8, and the elastically deformable stroke amount of the gap absorbing member 9 Is set to be larger than that of the elastic sheet 8.
[0035] 図 5a及び図 5bは、前記隙間吸収部材 9として皿ばねワッシャー 92を使用した例を 示すものである。この図 5a及び図 5bの例では 2枚の皿ばねワッシャー 92を互いに向 かい合わせ、これらを固定ボルト 71の頭部と第 2のスライド部材 13との間に介装して いる。各皿ばねワッシャー 92のばね定数は、これら総ての皿ばねワッシャー 92を勘 案した総ばね定数が前記弾性体シート 8のばね定数よりも小さくなるように各々設定 されている。すなわち、第 2のスライド部材 13を 6本の固定ボルト 71でブラケット 7に対 して固定しており、各固定ボルト 71に対して 2枚の皿ばねワッシャー 92が重ねて介装 されているので、合計 12枚の皿ばねワッシャー 92が直列的に又は並列的に介装さ れていることになる。これら皿ばねワッシャー 92の総ばね定数が前記弾性体シート 8 のばね定数よりも小さくなるように設定されており、図 5aに示すようにして皿ばねヮッ シヤー 92を固定ボルト 71と第 2のスライド部材 13との間に介装し、この状態から固定 ボルト 71をブラケット 7に対して締結すると、図 5bに示すように、弾性体シート 8よりも 皿ばねワッシャー 92が押し潰される結果となり、弾性体シート 8に十分な弾性変形の 余地を与えつつ第 2のスライド部材 13とブラケット 7とを締結することが可能となる。 FIGS. 5 a and 5 b show an example in which a disc spring washer 92 is used as the gap absorbing member 9. In the example of FIGS. 5a and 5b, two disc spring washers 92 face each other, and these are interposed between the head of the fixing bolt 71 and the second slide member 13. The spring constant of each disc spring washer 92 is set so that the total spring constant considering all the disc spring washers 92 is smaller than the spring constant of the elastic sheet 8. That is, the second slide member 13 is fixed to the bracket 7 with six fixing bolts 71, and two disc spring washers 92 are overlapped on each fixing bolt 71. Thus, a total of 12 disc spring washers 92 are interposed in series or in parallel. The total spring constant of these disc spring washers 92 is set to be smaller than the spring constant of the elastic sheet 8, and the disc spring washer 92 is fixed to the fixing bolt 71 and the second slide as shown in FIG. 5a. When the fixing bolt 71 is fastened to the bracket 7 in this state, the disc spring washer 92 is crushed more than the elastic sheet 8, as shown in FIG. It is possible to fasten the second slide member 13 and the bracket 7 while giving sufficient room for elastic deformation to the body sheet 8.
[0036] 前記隙間吸収部材 9としてゴムシートを用いた場合、ゴムには座屈荷重が存在し、 座屈荷重を超える力で固定ボルト 71を締結すると、ゴムシート 90が固定ボルト 71を 締結する以前の形状に復元できなくなってしまう。その点、隙間吸収部材 9として金 属製の皿ばねワッシャー 92を用いた場合には、そのような不都合を生じることがなぐ 皿ばね 92が平らに潰れるまで固定ボルト 71を締め付けたとしても、前述した機能を 隙間吸収部材 9に発揮させることが可能である。また、複数枚の皿ばねワッシャーを 互い違いに積み重ねて使用することにより、隙間吸収部材の弹性変形可能なスト口 一ク量を任意に調整することも可能となる。 When a rubber sheet is used as the gap absorbing member 9, there is a buckling load on the rubber, and when the fixing bolt 71 is fastened with a force exceeding the buckling load, the rubber sheet 90 fastens the fixing bolt 71. It will not be possible to restore the previous shape. In that regard, when a metal disc spring washer 92 is used as the gap absorbing member 9, such inconvenience does not occur. Even if the fixing bolt 71 is tightened until the disc spring 92 is flattened, It is possible to cause the gap absorbing member 9 to exert the function as described above. In addition, by using a plurality of disc spring washers that are alternately stacked, it is possible to arbitrarily adjust the amount of the stowage of the gap absorbing member that can be deformed by inertia.
[0037] そして、このように皿ばねワッシャー 92を隙間吸収部材 9として用いた場合であって
も、構造体 2の自重が第 2のスライド部材 13をブラケット 7へ押し付ける方向へ作用し た際に、第 2のスライド部材 13とブラケット 7とを結合している固定ボルト 71の締結力 が解放されてしまうといった不都合を回避することができ、固定ボルトの剪断耐力の 低下、上下振動による固定ボルトの更なる緩み、第 1のスライド部材に対する第 2のス ライド部材の捩れ発生といった問題点の発生を防止することが可能となる。 [0037] Then, in this way, the disc spring washer 92 is used as the gap absorbing member 9. However, when the weight of the structure 2 acts in the direction in which the second slide member 13 is pressed against the bracket 7, the fastening force of the fixing bolt 71 that couples the second slide member 13 and the bracket 7 is released. Such as lowering the shear strength of the fixing bolt, further loosening of the fixing bolt due to vertical vibration, and twisting of the second slide member relative to the first slide member. Can be prevented.
[0038] 尚、図 5a及び図 5bに示した例では、 2枚の皿ばねワッシャー 92を互いに向かい合 わせに重ね合わせて使用したが、必ずしも向かい合わせに重ねる必要はなぐ同一 方向に向いた皿ばねワッシャー 92を複数枚重ねて使用しても良い。また、必ずしも 1 本の固定ボルト 71に対して複数枚の皿ばねワッシャー 92を介装する必要はなぐ 1 枚の皿ばねワッシャー 92のみを介装するようにしても良い。いずれにしても、隙間吸 収部材 9としての皿ばねワッシャー 92に必要とされるばね定数及びストローク量に応 じて、皿ばねワッシャー 92の枚数及び積み重ね方向を任意に決定することができる。 [0038] In the example shown in FIGS. 5a and 5b, the two disc spring washers 92 are used so as to face each other. A plurality of spring washers 92 may be used. Further, it is not always necessary to interpose a plurality of disc spring washers 92 with respect to one fixing bolt 71. It is also possible to interpose only one disc spring washer 92. In any case, the number and the stacking direction of the disc spring washers 92 can be arbitrarily determined according to the spring constant and the stroke amount required for the disc spring washer 92 as the gap absorbing member 9.
[0039] 図 6a及び図 6bは、隙間吸収部材 9としての皿ばねワッシャー 92と第 2のスライド部 材 13との間に姿勢追従部材 93を介装した例を示すものである。この姿勢追従部材 9 3は第 2のスライド部材 13に向けて突出した球面を具備しており、固定ボルト 71を締 結すると、図 6bに示すように、前記姿勢追従部材 93の突出した球面が第 2のスライド 部材 13に形成された球面座 94と隙間なく摺接するようになつている。固定ボルト 71 をブラケット 7に対して締結した際に、弾性体シート 8よりも皿ばねワッシャー 92が押し 潰される点は前述した図 5bの例と同じであり、弾性体シート 8に十分な弾性変形の余 地を与えつつ第 2のスライド部材 13とブラケット 7とを締結することが可能となっている 6A and 6B show an example in which a posture follower member 93 is interposed between the disc spring washer 92 as the gap absorbing member 9 and the second slide member 13. This posture following member 93 has a spherical surface protruding toward the second slide member 13, and when the fixing bolt 71 is tightened, as shown in FIG. The spherical slide 94 formed on the second slide member 13 is in sliding contact with no gap. The point that the disc spring washer 92 is crushed rather than the elastic sheet 8 when the fixing bolt 71 is fastened to the bracket 7 is the same as the example of FIG. It is possible to fasten the second slide member 13 and the bracket 7 while providing room for
[0040] 本来、弾性シート 8は第 2の軌道レール 12に沿って移動する第 2のスライド部材 13 の姿勢変化を吸収するために設けられている。従って、固定ボルト 71の頭部と第 2の スライド部材 13との間に凸状球面を備えた姿勢追従部材 93を介装すれば、かかる 凸状球面 93が第 2のスライド部材 13の球面座 94と摺接することにより、固定ボルト 7 1の頭部に対する第 2のスライド部材 13の変化を容易なものとすることができる。これ により、固定ボルト 71によってブラケット 7に締結された第 2のスライド部材 13の姿勢 変化を容易なものとし、前記弾性シート 8の本来の機能を効果的に発揮させることが
できるものである。特に、固定ボルト 71を強固に締結し、隙間吸収部材 9としての皿 ばねワッシャー 92を完全に押し潰してしまっている場合には、第 2のスライド部材 13 の姿勢変化が固定ボルト 71の頭部によって妨げられやすいので、このような姿勢追 従部材 93の介装は一層効果的である。
[0040] Originally, the elastic sheet 8 is provided to absorb a change in the posture of the second slide member 13 that moves along the second track rail 12. Therefore, if a posture tracking member 93 having a convex spherical surface is interposed between the head of the fixing bolt 71 and the second slide member 13, the convex spherical surface 93 becomes the spherical seat of the second slide member 13. By making sliding contact with 94, the change of the second slide member 13 relative to the head of the fixing bolt 71 can be facilitated. As a result, the posture of the second slide member 13 fastened to the bracket 7 by the fixing bolt 71 can be easily changed, and the original function of the elastic sheet 8 can be effectively exhibited. It can be done. In particular, when the fixing bolt 71 is firmly tightened and the disc spring washer 92 as the gap absorbing member 9 is completely crushed, the posture change of the second slide member 13 is caused by the head of the fixing bolt 71. Therefore, the interposition of the posture tracking member 93 is more effective.
Claims
[1] 長手方向に沿って転動体の転走面が形成された第 1の軌道レール (10)と、長手方向 に沿って転動体の転走面が形成されると共に前記第 1の軌道レール (10)に対して直 交配置された第 2の軌道レール (12)と、多数の転動体を介して前記第 1の軌道レール (10)に組み付けられると共に該第 1の軌道レール (10)に沿って自在に直線往復運動 可能な第 1のスライド部材 (11)と、この第 1のスライド部材 (11)に対して固定されると共 に多数の転動体を介して第 2の軌道レール (12)に組み付けられ、該第 2の軌道レー ル (12)に沿って自在に直線往復運動可能な第 2のスライド部材 (13)と、これら第 1のス ライド部材 (11)と第 2のスライド部材 (13)との間に介装される弾性体シート (8)と、この弾 性体シート (8)を押し潰すようにして前記第 2のスライド部材 (13)を前記第 1のスライド 部材 (11)に対して結合する固定手段 (71)とから構成され、 [1] A first track rail (10) in which a rolling surface of the rolling element is formed along the longitudinal direction, and a rolling surface of the rolling element is formed along the longitudinal direction and the first track rail. A second track rail (12) arranged orthogonally to (10), and the first track rail (10) assembled to the first track rail (10) via a number of rolling elements. A first slide member (11) capable of linearly reciprocating freely along the first slide member (11) and a second track rail that is fixed to the first slide member (11) and via a number of rolling elements. A second slide member (13) assembled to (12) and capable of linear reciprocation freely along the second track rail (12), and the first slide member (11) and the second slide member An elastic sheet (8) interposed between the second slide member (13) and the second slide member (13) so as to crush the elastic sheet (8). Is constituted from a fixing means for coupling (71) relative to the first slide member (11),
前記固定手段 (71)と第 2のスライド部材 (13)との間には、前記弾性体シート (8)のば ね定数よりも小さなばね定数の隙間吸収部材 (9)が介装されていることを特徴とする X Y案内ガイド。 A gap absorbing member (9) having a spring constant smaller than the spring constant of the elastic sheet (8) is interposed between the fixing means (71) and the second slide member (13). XY guide that features that.
[2] 前記固定手段は第 2のスライド部材 (13)を貫通して第 1のスライド部材 (11)に締結され る複数の固定ボルト (71)であり、前記隙間吸収部材 (9)は各固定ボルト (71)の頭部と第 2のスライド部材 (13)との間に介装された皿ばねヮッシャ (92)であり、総ての皿ばねヮッ シャ (92)を勘案した総ばね定数が前記弾性体シート (8)のばね定数よりも小さいことを 特徴とする請求項 1記載の XY案内ガイド。 [2] The fixing means is a plurality of fixing bolts (71) that pass through the second slide member (13) and are fastened to the first slide member (11). The gap absorbing member (9) A disc spring washer (92) interposed between the head of the fixing bolt (71) and the second slide member (13), and the total spring constant considering all disc spring washer (92) The XY guide according to claim 1, wherein is smaller than a spring constant of the elastic sheet (8).
[3] 前記隙間吸収部材 (9)と第 2のスライド部材 (13)との間には凸状球面を備えた姿勢追 従部材 (93)が介装され、力かる凸状球面が第 2のスライド部材 (13)に具備された球面 座 (94)と摺接していることを特徴とする請求項 1記載の免震装置。 [3] A posture tracking member (93) having a convex spherical surface is interposed between the gap absorbing member (9) and the second slide member (13). The seismic isolation device according to claim 1, wherein the seismic isolation device is in sliding contact with a spherical seat (94) provided on the sliding member (13).
[4] 基盤 (1)とこの基盤 (1)上に設置された構造体 (2)との間に配置され、かかる基盤 (1)から 構造体 (2)に対する震動の伝達を抑える免震装置であって [4] Seismic isolation device placed between the base (1) and the structure (2) installed on this base (1) to suppress the transmission of vibrations from the base (1) to the structure (2) Because
長手方向に沿って転動体の転走面が形成されると共に前記基盤 (1)に固定された 第 1の軌道レール (10)と、長手方向に沿って転動体の転走面が形成されると共に前 記第 1の軌道レール (10)と直交して前記構造体 (2)に固定された第 2の軌道レール (12 )と、多数の転動体を介して前記第 1の軌道レール (10)に組み付けられると共に該第 1
の軌道レール (10)に沿って自在に直線往復運動可能な第 1のスライド部材 (11)と、こ の第 1のスライド部材 (11)に対して固定されると共に多数の転動体を介して第 2の軌 道レール (12)に組み付けられ、該第 2の軌道レール (12)に沿って自在に直線往復運 動可能な第 2のスライド部材 (13)と、これら第 1のスライド部材 (11)と第 2のスライド部材( 13)との間に介装される弾性体シート (8)と、この弾性体シート (8)を押し潰すようにして 前記第 2のスライド部材 (13)を前記第 1のスライド部材 (11)に対して結合する固定手段 (71)とから構成され、 A rolling surface of the rolling element is formed along the longitudinal direction, a first track rail (10) fixed to the base (1), and a rolling surface of the rolling element is formed along the longitudinal direction. The second track rail (12) fixed to the structure (2) orthogonal to the first track rail (10) and the first track rail (10 ) And the first A first slide member (11) capable of linearly reciprocating freely along the track rail (10), and fixed to the first slide member (11) and via a number of rolling elements. A second slide member (13) assembled to the second track rail (12) and capable of linear reciprocating freely along the second track rail (12), and the first slide members ( 11) and an elastic sheet (8) interposed between the second slide member (13) and the second slide member (13) so as to crush the elastic sheet (8). A fixing means (71) coupled to the first slide member (11),
前記固定手段 (71)と第 2のスライド部材 (13)との間には、前記弾性体シート (8)のば ね定数よりも小さなばね定数の隙間吸収部材 (9)が介装されていることを特徴とする 免震装置。 A gap absorbing member (9) having a spring constant smaller than the spring constant of the elastic sheet (8) is interposed between the fixing means (71) and the second slide member (13). A seismic isolation device characterized by that.
[5] 前記固定手段は第 2のスライド部材 (13)を貫通して第 1のスライド部材 (11)に締結され る複数の固定ボルト (71)であり、前記隙間吸収部材 (9)は各固定ボルト (71)の頭部と第 2のスライド部材 (13)との間に介装された皿ばねヮッシャ (72)であり、総ての皿ばねヮッ シャ (72)を勘案した総ばね定数が前記弾性体シート (8)のばね定数よりも小さいことを 特徴とする請求項 4記載の免震装置。 [5] The fixing means is a plurality of fixing bolts (71) that pass through the second slide member (13) and are fastened to the first slide member (11). The gap absorbing member (9) A disc spring washer (72) interposed between the head of the fixing bolt (71) and the second slide member (13), taking into account all disc spring washer (72) The seismic isolation device according to claim 4, wherein is less than a spring constant of the elastic sheet (8).
[6] 前記隙間吸収部材 (9)と第 2のスライド部材 (13)との間には凸状球面を備えた姿勢追 従部材 (73)が介装され、力かる凸状球面が第 2のスライド部材 (13)に具備された球面 座 (74)と摺接していることを特徴とする請求項 4記載の免震装置。
[6] A posture tracking member (73) having a convex spherical surface is interposed between the gap absorbing member (9) and the second slide member (13). The seismic isolation device according to claim 4, wherein the seismic isolation device is in sliding contact with a spherical seat (74) provided on the sliding member (13).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007518930A JPWO2006129534A1 (en) | 2005-05-30 | 2006-05-24 | XY guidance device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005-156718 | 2005-05-30 | ||
JP2005156718 | 2005-05-30 |
Publications (1)
Publication Number | Publication Date |
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WO2006129534A1 true WO2006129534A1 (en) | 2006-12-07 |
Family
ID=37481463
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/310322 WO2006129534A1 (en) | 2005-05-30 | 2006-05-24 | Xy guide device and base isolation device |
Country Status (3)
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JP (1) | JPWO2006129534A1 (en) |
TW (1) | TW200706775A (en) |
WO (1) | WO2006129534A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012241889A (en) * | 2011-05-24 | 2012-12-10 | Nsk Ltd | Linear guide device |
JP2015162956A (en) * | 2014-02-27 | 2015-09-07 | 日本トムソン株式会社 | Stage device with bracket |
CN109090929A (en) * | 2018-10-29 | 2018-12-28 | 西南科技大学 | Compound earthquake isolating equipment |
JP7058178B2 (en) | 2018-05-30 | 2022-04-21 | 株式会社免制震ディバイス | Building foundation |
WO2022171864A1 (en) * | 2021-02-14 | 2022-08-18 | Inventus Engineering Gmbh | Guidance system for two-axis guidance of a movement and input system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5118134A (en) * | 1974-08-06 | 1976-02-13 | Kawasaki Heavy Ind Ltd | Kyumenwatsushaasho nyoru shimetsuke kiko |
JPH1122022A (en) * | 1997-07-01 | 1999-01-26 | Mitsubishi Steel Mfg Co Ltd | Base isolating device |
-
2006
- 2006-05-24 WO PCT/JP2006/310322 patent/WO2006129534A1/en active Application Filing
- 2006-05-24 JP JP2007518930A patent/JPWO2006129534A1/en not_active Withdrawn
- 2006-05-29 TW TW095119015A patent/TW200706775A/en unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5118134A (en) * | 1974-08-06 | 1976-02-13 | Kawasaki Heavy Ind Ltd | Kyumenwatsushaasho nyoru shimetsuke kiko |
JPH1122022A (en) * | 1997-07-01 | 1999-01-26 | Mitsubishi Steel Mfg Co Ltd | Base isolating device |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012241889A (en) * | 2011-05-24 | 2012-12-10 | Nsk Ltd | Linear guide device |
JP2015162956A (en) * | 2014-02-27 | 2015-09-07 | 日本トムソン株式会社 | Stage device with bracket |
JP7058178B2 (en) | 2018-05-30 | 2022-04-21 | 株式会社免制震ディバイス | Building foundation |
CN109090929A (en) * | 2018-10-29 | 2018-12-28 | 西南科技大学 | Compound earthquake isolating equipment |
CN109090929B (en) * | 2018-10-29 | 2023-11-03 | 西南科技大学 | Composite shock insulation device |
WO2022171864A1 (en) * | 2021-02-14 | 2022-08-18 | Inventus Engineering Gmbh | Guidance system for two-axis guidance of a movement and input system |
Also Published As
Publication number | Publication date |
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TW200706775A (en) | 2007-02-16 |
JPWO2006129534A1 (en) | 2008-12-25 |
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