WO2008041589A1 - Dispositif de guidage linéaire - Google Patents

Dispositif de guidage linéaire Download PDF

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Publication number
WO2008041589A1
WO2008041589A1 PCT/JP2007/068706 JP2007068706W WO2008041589A1 WO 2008041589 A1 WO2008041589 A1 WO 2008041589A1 JP 2007068706 W JP2007068706 W JP 2007068706W WO 2008041589 A1 WO2008041589 A1 WO 2008041589A1
Authority
WO
WIPO (PCT)
Prior art keywords
moving block
groove
ball
track rail
track
Prior art date
Application number
PCT/JP2007/068706
Other languages
English (en)
Japanese (ja)
Inventor
Takeki Shirai
Original Assignee
Thk Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thk Co., Ltd. filed Critical Thk Co., Ltd.
Priority to JP2008537491A priority Critical patent/JP5191389B2/ja
Publication of WO2008041589A1 publication Critical patent/WO2008041589A1/fr

Links

Classifications

    • 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
    • F16C29/064—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 two rows of balls, one on each side of the rail
    • 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
    • F16C29/08—Arrangements for covering or protecting the ways
    • F16C29/084—Arrangements for covering or protecting the ways fixed to the carriage or bearing body movable along the guide rail or track
    • F16C29/088—Seals extending in the longitudinal direction of the carriage or bearing body

Definitions

  • the moving block is assembled to the track rail via a large number of balls that circulate infinitely, and the mounted object fixed to the moving block can freely move back and forth along the track rail. More particularly, the present invention relates to a linear guide device provided with a seal member for preventing foreign matter adhering to a track rail from entering a moving block.
  • a rolling guide device in which a moving block on which a movable body such as a table is continuously moved along a track rail is frequently used.
  • the moving block is assembled to the track rail via a large number of balls, and the ball moves by applying a load between the moving block and the track rail.
  • the movable body mounted on the block can be moved lightly with very little resistance along the track rail.
  • the moving block is provided with an infinite circulation path for the ball. By circulating the ball in the infinite circulation path, the moving block can move continuously along the track rail. It has become.
  • the moving block has been mainly composed of a metal block main body and a synthetic resin end cap coupled to both ends of the block main body.
  • the block body is formed with a load rolling groove in which the ball does not load with the ball rolling groove of the track rail.
  • a ball passage was drilled, and it was made of steel that could be hardened, for example, to reduce wear over time due to rolling of the ball.
  • the end cap is formed with a direction changing path, and is formed by injection molding of a synthetic resin in order to realize a complicated shape. Then, by accurately fixing the pair of end caps to the front and rear end faces of the block main body, the end of the load rolling groove and the end of the unloaded ball passage are changed in direction.
  • a moving block having an infinite circulation path for balls has been completed (Japanese Patent Laid-Open No. 2002-39174).
  • the moving block is generally equipped with a seal device for preventing foreign matter from entering the moving block.
  • this sealing device is attached to the block main body along a moving direction of the moving block, and a pair of end seals that are respectively attached to the outside of the end cap at both front and rear end surfaces in the moving direction of the moving block. Combining these end seals and side seals, the gap between the track rail and the moving block is sealed to prevent foreign matter from entering the moving block.
  • JP-A-59-121225 discloses a sealing device in which the end seal and the side seal are integrated!
  • a pair of end plates are provided so as to connect a pair of end seals, and a pair of bottom plates are provided on both sides of the track rail, and these bottom plates function as side seals.
  • the moving block can be attached to the moving block so as to surround the periphery of the moving block.
  • Patent Document 1 Japanese Patent Laid-Open No. 2002-39174
  • Patent Document 2 JP 59-121225 A
  • the present invention has been made in view of such problems, and the object of the present invention is that the gap between the rail and the moving block can be reliably sealed with a seal member, and It is possible to keep the degree of sliding contact between the seal member and the track rail constant, and to prevent the sliding block from increasing in sliding resistance.
  • An object of the present invention is to provide a linear guide device that can be used.
  • the linear guide device of the present invention comprises a track rail in which a rolling groove of a ball is formed along a longitudinal direction, and a single metal block, and includes a large number of Bonoles. And a moving block having an infinite circulation path for the ball inside, and the moving block is provided with a seal member for sealing a gap between the moving block and the track rail. The sealing member continuously and continuously surrounds the ball existing between the track rail and the moving block.
  • the moving block is composed of a single metal block. If the sealing member is directly provided to the moving block, the moving block is interposed via the ball. Since it is positioned on the track rail, the seal member is also mounted on the track rail. On the other hand, it is positioned with high accuracy. Therefore, the seal member can be surely brought into contact with the surface of the track rail, and troubles such as unintentionally causing the seal member to slide strongly against the track rail can be prevented.
  • the moving block is composed of a single metal block, and no other parts are required to form an infinite circulation path of the ball.
  • the seal member can be continuously provided in the moving block without any breaks, and by providing the seal member so as to surround the ball existing between the track rail and the moving block, infinite circulation is possible. The entry of foreign objects into the road can be completely prevented.
  • a method for constructing a moving block having an infinite circulation path of a ball with a single metal block force is disclosed, for example, in WO2006 / 022242-A1
  • a method of forming a track groove that becomes an infinite circulation path of a ball on the surface of a single metal block can be considered.
  • the track grooves are provided respectively on a load linear groove in which the ball rolls while applying a load to the ball rolling groove of the track rail, and on both ends of the load linear groove.
  • the unloaded straight groove for transferring the ball is formed at a position facing the track rail of the moving block.
  • a method of forming a moving block by metal injection molding in which a core is inserted into a mold is conceivable. Specifically, a core corresponding to the infinite circulation path of the ball is formed from a low melting point material, and then metal injection molding is performed with the core inserted into a mold. Thereafter, the injected molded body is heat-treated at a low temperature to dissolve and evaporate the core, and further, the metal powder of the molded body is sintered at a high temperature to obtain a single metal block. A moving block with an infinite circulation path can be obtained.
  • the sealing member is transferred by a technique such as press molding. It may be formed separately from the moving block and bonded to a predetermined position of the moving block.
  • a rubber material or the like serving as a seal member is injected or press-fitted into the mold, and the surface of the moving block serving as a core metal is
  • the seal member may be molded with respect to a predetermined position, and the seal member may be vulcanized and bonded to the moving block simultaneously with the molding.
  • the latter method is preferably employed from the viewpoint of simplifying the process of manufacturing the mobile block and reducing the cost.
  • the shape of the moving block and the shape of the track rail may be appropriately changed according to the use application of the linear guide device! Regardless of the shape of the moving block, a ball exists between the moving block and the track rail, and the sealing member is provided so as to surround these balls. It is possible to easily prevent foreign matter from entering the infinite circulation path by bringing the tip of the rail into contact with the rail.
  • FIG. 1 is a front sectional view showing an embodiment of a linear guide device to which the present invention is applied.
  • FIG. 2 is a front sectional view showing a track rail of the linear guide device shown in FIG.
  • FIG. 3 is a front sectional view showing a moving block of the linear guide device shown in FIG.
  • FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG.
  • FIG. 5 is a cross-sectional view of the V-V spring in FIG.
  • FIG. 6 is a diagram showing a state where the track groove of the moving block is developed on a plane.
  • FIG. 7 is an exploded perspective view showing a state in which the seal member is fixed to the moving block.
  • FIG. 8 is a front sectional view showing an example of a mold for injection molding a seal member.
  • FIG. 1 shows an embodiment of a linear guide device to which the present invention is applied.
  • This linear guide device is composed of a long track rail 1 having a substantially rectangular cross section, and a moving block 2 formed in a channel shape and assembled to the track rail 1 via a large number of balls 3. Configured so that the moving block 2 straddles the track rail 1 Constructed to reciprocate freely on rail 1!
  • FIG. 2 shows a cross section orthogonal to the longitudinal direction of the track rail 1.
  • a rolling groove 10 for the ball 3 is formed on each side surface of the track rail 1 along the longitudinal direction. These rolling grooves 10 are formed at a position slightly away from the upper surface of the track rail 1, specifically at a position separated from the upper surface 11 of the track rail 1 by a distance less than the radius of the ball 3.
  • the rolling groove 10 is composed of two concave curved surfaces 10a, 10b on which the ball 3 rolls, and the cross section has a so-called Gothic arch shape. Accordingly, the ball 3 comes into contact with the concave curved surfaces 10a and 10b at two points, and the contact directions have an angle of 45 degrees with respect to the bottom surface of the track rail 1, respectively.
  • a plurality of bolt mounting holes 12 are formed through the track rail 1 at predetermined intervals in the longitudinal direction, and the track rail 1 is attached to various machine beds or the like by using the bolt mounting holes 12 with force. It can be attached to a fixed part such as a column.
  • the upper corner portion 13 where the upper surface 11 and the side surface of the track rail 1 intersect is formed in a curved surface, and a convex curved surface continuous from the concave curved surface 10a of the rolling groove 10 to the upper surface 11 is formed. Is doing. This is to facilitate infinite circulation of the ball 3 in the moving block 2 as will be described later.
  • the moving block 2 has a base portion 20 and a pair of flange portions 21 orthogonal to the base portion 20 and is formed in a channel shape.
  • a guide groove 22 is provided between them.
  • the moving block 2 has the upper portion of the track rail 1 loosely fitted in the guide groove 22 and straddles the track rail 1 through a slight gap. That is, both side surfaces of the track rail 1 are opposed to the inner surface of the flange portion 21 of the moving block 2.
  • the upper surface of the base portion 20 is a mounting surface 23 of a movable body such as a table, and a tap hole 24 into which a mounting screw is screwed is formed in the base portion 20 which has a force.
  • the moving block 2 has a track groove 30 in which the ball 3 circulates infinitely.
  • the track groove 30 is opposed to the rolling groove 10 of the track rail 1 and is formed with a load straight groove 31 formed on the inner surface of the flange portion 21, and is formed in parallel with the load straight groove 31 and the track.
  • An unloaded straight groove 32 formed in the base 20 facing the upper surface 11 of the rail 1 and the load It is composed of a ball deflection groove 33 for moving the ball 3 between the wire groove 31 and the no-load linear groove 32.
  • the track groove 30 is open to the entire area of the track groove 30! /, And the balls 3 arranged in the track groove 30 circulate in the track groove 30 while facing the track rail 1. .
  • FIGS. 4 and 5 are sectional views taken along the lines IV-IV and V-V of the moving block shown in FIG. 3.
  • the track groove 30 is a corner portion of the guide groove 22 of the moving block 2. 4 and 5, the overall shape of the track groove 30 is difficult to grasp in FIGS. 4 and 5.
  • FIG. 6 shows the track groove 30 developed on a plane.
  • the cross section of the load straight groove 31 constituting a part of the track groove 30 is formed in a Gothic arch shape like the rolling groove 10 on the track rail 1 side, and the ball 3 is composed of the load straight groove 31. Is touching at two points. Accordingly, the contact direction between the ball 3 and the load straight groove 31 is inclined 45 degrees up and down with respect to the normal direction of the inner surface of the flange portion 21 (left and right direction in FIG. 3). Ball 3 rolls while applying a load between rolling groove 10 of track rail 1 and load linear groove 31 of moving block 2, and moving block 2 is loaded with any load acting in a direction other than its moving direction. It is now possible to reciprocate along the track rail 1!
  • the unloaded straight groove 32 constituting a part of the track groove 30 is formed as a passage slightly larger than the diameter of the ball 3, and the opening width toward the upper surface 11 of the track rail 1 is the ball It is set slightly narrower than the diameter of 3. Therefore, the ball 3 is accommodated in the no-load rolling groove 32 in an unloaded state, that is, in a state where it can freely rotate. Ball 3 is a force S that is held in the unloaded straight groove 32, which is not intended to avoid contact between ball 3 and track rail 1, and ball 3 is track rail 1 3 ⁇ 4 Rolls inside the unloaded straight groove 32.
  • the ball deflection groove 33 has a substantially U-shaped track connecting the load linear groove 31 and the no-load linear groove 32, and rolls along the load linear groove 31 while applying a load.
  • the ball 3 is released from the load, and the force, the rolling direction of the ball 3 is gradually changed, and the ball 3 is turned 180 degrees and fed into the unloaded linear groove 32.
  • This Bonore deflection groove 33 is the shallowest unloaded linear groove 32 at the connection point with the load linear groove 31. It is formed so that it may become the deepest in the connection part.
  • the ball 3 released from the load is pushed by the succeeding ball 3 as it is, the force S traveling in the rolling groove 10 of the track rail 1 as it is, and the ball deflection groove 33 is the ball 10 in the rolling groove 10 Since the rolling is interrupted and the traveling direction of the ball 3 is forcibly changed, the ball 3 is moved toward the concave curved surface 10a of the rolling groove 10 by the Bonore deflection groove 33 so that the concave curved surface 10a is scooped up. Lift to the side of track rail 1. As a result, the ball 3 is completely separated from the rolling groove 10 of the track rail 1 and completely accommodated in the ball deflection groove 33 of the moving block 2.
  • the ball deflection groove 33 developed on the plane has a substantially U-shaped track
  • the ball 3 accommodated in the ball deflection groove 33 has a force. Reverse the rolling direction and enter the unloaded straight groove 32 of the moving block 2 facing the upper surface of the track rail 1.
  • the ball 3 traveling in the unloaded straight groove 32 enters the ball deflecting groove 33 on the opposite side, reverses the rolling direction again, and then the loaded straight line between the rolling groove 10 of the track rail 1 and the moving block 2. Enter between groove 31.
  • the ball 3 enters the space between the track rail 1 and the moving block 2 so as to climb down the concave curved surface 10a of the rolling groove 10 from the side, and as the ball deflection groove 33 gradually becomes shallower, the ball 3 Transition from the load state to the load state.
  • the ball 3 circulates in the track groove 30 of the moving block 2 in this way, and accordingly, the moving block 2 can move continuously along the track rail 1 without interruption.
  • the moving block 2 is manufactured by first drawing a rod-shaped steel material to give a channel shape, then processing the tap hole 24 on the base 20, and finally mounting the ball end mill.
  • the track groove 30 is formed by the cutting process used. Prior to cutting the track groove 30, the rod-shaped steel material formed in a channel shape is quenched.
  • the method for forming the rod-shaped steel material into a channel shape can be selected as appropriate according to the material of the moving block 2, and for example, forging can be used.
  • FIG. 7 is an exploded perspective view for showing the position of the sealing member 4 with respect to the moving block.
  • this seal member 4 covers a pair of end seal portions 40 covering both front and rear end surfaces in the moving direction of the moving block 2 with respect to the track rail 1, and covers the lower ends of the flange portions 21 of the moving block 2.
  • the end seal portion 40 and the side seal portion 41 are integrally formed of a rubber material and fixed to the moving block.
  • the end seal portion 40 is formed with an end seal lip 40a that contacts the upper surface 11 and the side surface of the track rail 1.
  • the end seal lip 40a is a protrusion 40b corresponding to the rolling groove 10 of the track rail 1.
  • the side seal portion 41 is formed with a side seal lip 41a that contacts the side surface of the track rail 1, and the end portion in the longitudinal direction of the side seal lip 4la is continuous with the end seal lip 40a without a break.
  • the end seal lip 40a and the side seal lip 41a are provided so as to surround the surface of the moving block 2 facing the track rail 1, and are formed at a position facing the track rail 1.
  • the track groove 30 is surrounded by the end seal lip 40a and the side sea Rurippu 41 a.
  • the seal member 4 is directly formed by molding at a predetermined position on the surface of the moving block 2. Specifically, as shown in FIG. 8, after the moving block 2 in which the track groove 30 is formed is inserted into the mold 5, the sealing member 4 is against the cavity 52 created by the mold 5 and the moving block 2. A rubber material to be used is injected or press-fitted, and the end seal portion 40 and the side seal portion 41 are directly molded with respect to predetermined positions of the base portion 20 and the flange portion 21 of the moving block 2. At the same time as this molding, the molded end seal 40 and side The seal part 41 is vulcanized and bonded to the moving block 2 serving as a core metal. Note that an adhesive may be applied in advance to the vulcanization bonding positions of the end seal part 40 and the side seal part 41 on the moving block 2 inserted into the mold 5.
  • the mold 5 shown in FIG. 8 includes a fixed mold 50 that covers the base 20 and the flange 21 of the moving block 2 from the outside, and a slide mold 51 that fits into the guide groove 22 of the moving block 2.
  • a cavity 52 corresponding to the end seal portion 40 and the side seal portion 41 is created.
  • the configuration of the mold 5 may be changed as appropriate according to the specific structure of the moving block 2.
  • the moving block 2 is a single metal. Therefore, when the moving block 2 is assembled to the track rail 1, the inside of the moving block 2, that is, the region surrounded by the end seal lip 40a and the side seal lip 41a is The moving block 2 is completely sealed from the outside. Accordingly, the track groove 30 in which the balls 3 circulate indefinitely is completely sealed from the outside by the seal member 4 described above, so that foreign matter and coolant liquid adhering to the track rail 1 can hardly enter the track groove 30. It can be surely prevented.
  • the seal member 4 is fixed to the moving block 2 formed of a single metal block, the moving block 2 is positioned on the track rail 1 via the balls 3. As a result, the sealing member 4 is also reliably positioned with respect to the track rail 1. For this reason, the contact between the end seal lip 40a or the side seal lip 41a and the track rail 1 becomes poor, the sealing performance between the track rail 1 and the moving block 2 is lowered, or the end seal lip 40a. Or, if the contact between the side seal lip 41a and the track rail 1 becomes excessive, and the sliding resistance of the moving block 2 with respect to the track rail 1 increases, it becomes possible to avoid the trouble.
  • the sealing member 4 is molded and fixed to the moving block 2 at the same time as described above, the sealing member 4 can be released from the trouble of positioning and bonding to the moving block 2, and The seal member 4 can be integrated with the moving block 2 with high accuracy. As a result, the contact between the seal member 4 and the track rail 1 can be made appropriate, and the sealability between the moving block 2 and the track rail 1 can be improved.
  • a method such as press molding or injection molding is used for the seal member 4 in which the end seal portion 40 and the side seal portion 41 are integrated. It is conceivable that the sealing member 4 is bonded to the moving block 2 after being manufactured.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bearings For Parts Moving Linearly (AREA)

Abstract

L'invention concerne un dispositif de guidage linéaire, dans lequel un intervalle entre un rail de roulement (1) et un bloc de déplacement (2) est fermé de manière fiable par un élément d'étanchéité (4), le degré de contact coulissant entre l'élément d'étanchéité (4) et le rail de roulement (1) étant toujours maintenu constant, afin d'empêcher une augmentation de la résistance au glissement du bloc de déplacement (2). Ce dispositif peut être assemblé avec un minimum de mains-d'œuvre, et produit de manière simple et peu onéreuse. Le dispositif de guidage linéaire est construit à partir du rail de roulement (1) présentant une rainure de roulement pour des billes (3) dans le sens longitudinal du rail, et à partir du bloc de déplacement métallique (2) assemblé au rail de roulement au moyen du nombre important de billes intermédiaires, rail de roulement dans lequel une rainure de guidage (30) permettant la circulation des billes est formée, orientée face au rail de roulement. Le bloc de déplacement (2) est muni de l'élément d'étanchéité (4) destiné à fermer de manière étanche l'intervalle entre le bloc de déplacement et le rail de roulement (1). L'élément d'étanchéité (4) entoure de manière continue la rainure de guidage (30) sans interruption.
PCT/JP2007/068706 2006-09-29 2007-09-26 Dispositif de guidage linéaire WO2008041589A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008537491A JP5191389B2 (ja) 2006-09-29 2007-09-26 直線案内装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006267341 2006-09-29
JP2006-267341 2006-09-29

Publications (1)

Publication Number Publication Date
WO2008041589A1 true WO2008041589A1 (fr) 2008-04-10

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ID=39268451

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/068706 WO2008041589A1 (fr) 2006-09-29 2007-09-26 Dispositif de guidage linéaire

Country Status (2)

Country Link
JP (1) JP5191389B2 (fr)
WO (1) WO2008041589A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9995338B2 (en) * 2013-04-10 2018-06-12 Thk Co., Ltd. Motion guide device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07243443A (ja) * 1994-03-04 1995-09-19 Nippon Thompson Co Ltd 直動転がり案内ユニット
JPH07332362A (ja) * 1994-05-31 1995-12-22 Thk Kk 転がり案内装置および転がり案内装置用密封装置
JP2002039174A (ja) * 2000-07-21 2002-02-06 Thk Co Ltd 転がり案内装置
WO2006022242A1 (fr) * 2004-08-27 2006-03-02 Thk Co., Ltd. Dispositif de guidage de roulement
JP2006183769A (ja) * 2004-12-27 2006-07-13 Nsk Ltd 直動案内装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03213714A (ja) * 1990-01-17 1991-09-19 Nippon Thompson Co Ltd 樹脂製直動案内ユニット
JP2568387Y2 (ja) * 1992-11-30 1998-04-08 株式会社日平トヤマ スライドシール
JP3872003B2 (ja) * 2002-10-22 2007-01-24 竹内精工株式会社 ボールリニアガイド及びボールリニアガイドの製造方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07243443A (ja) * 1994-03-04 1995-09-19 Nippon Thompson Co Ltd 直動転がり案内ユニット
JPH07332362A (ja) * 1994-05-31 1995-12-22 Thk Kk 転がり案内装置および転がり案内装置用密封装置
JP2002039174A (ja) * 2000-07-21 2002-02-06 Thk Co Ltd 転がり案内装置
WO2006022242A1 (fr) * 2004-08-27 2006-03-02 Thk Co., Ltd. Dispositif de guidage de roulement
JP2006183769A (ja) * 2004-12-27 2006-07-13 Nsk Ltd 直動案内装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9995338B2 (en) * 2013-04-10 2018-06-12 Thk Co., Ltd. Motion guide device

Also Published As

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JPWO2008041589A1 (ja) 2010-02-04
JP5191389B2 (ja) 2013-05-08

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