JP2007113671A - Linear guide bearing device and rail cap - Google Patents

Linear guide bearing device and rail cap Download PDF

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Publication number
JP2007113671A
JP2007113671A JP2005305241A JP2005305241A JP2007113671A JP 2007113671 A JP2007113671 A JP 2007113671A JP 2005305241 A JP2005305241 A JP 2005305241A JP 2005305241 A JP2005305241 A JP 2005305241A JP 2007113671 A JP2007113671 A JP 2007113671A
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Prior art keywords
rail
counterbore
rail cap
cap
rolling
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JP2005305241A
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Japanese (ja)
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Toshiyuki Shimamura
敏之 島村
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NSK Ltd
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NSK Ltd
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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
    • F16C29/08—Arrangements for covering or protecting the ways
    • F16C29/082—Arrangements for covering or protecting the ways fixed to the way
    • 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
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/14—Cap nuts; Nut caps or bolt caps
    • 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
    • F16C29/004—Fixing of a carriage or rail, e.g. rigid mounting to a support structure or a movable part
    • 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

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a rail cap from being fitted in a counter bore in a tilted state, and further to suppress the accumulation of dust, etc. into the clearance between the rail cap and the chamfered portion around the peripheral edge of the opening of the counter bore. <P>SOLUTION: The rail cap 30 has interference portions 32 on its outer peripheral portion, and closes a mounting hole 14 by being inserted into the counter bore 16 provided on the upper portion of the mounting hole 14 of a guide rail 1 composing a linear guide bearing device, and further has a flange portion 34 on the outer peripheral edge of its upper surface so as to cover the chamfered portion 20 formed on the inner peripheral edge of the opening of the counter bore 16. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、一般産業機械や搬送装置等に用いられる直動案内軸受装置及び直動案内軸受装置を構成する案内レールの取付穴を閉塞するレールキャップの改良に関する。   The present invention relates to a linear motion guide bearing device used for general industrial machines, conveying devices, and the like, and an improvement in a rail cap that closes a guide rail mounting hole constituting the linear motion guide bearing device.

従来の直動案内軸受装置としては、例えば図３に示すものが知られている。
この直動案内軸受装置は、軸方向に延びる案内レール１と、該案内レール１上に軸方向に沿って相対移動可能に跨架されたスライダ２とを備える。
案内レール１の両側面にはそれぞれ軸方向に延びる転動体転動面３が形成されており、また、案内レール１の上面には下面まで貫通する取付穴１４が軸方向に略等間隔で複数箇所形成されている。スライダ２のスライダ本体２Ａには、その両袖部４の内側面に、それぞれ転動体転動面３に対向する転動体転動面７が形成されている。 As a conventional linear motion guide bearing device, for example, the one shown in FIG. 3 is known.
This linear motion guide bearing device includes a guide rail 1 extending in the axial direction and a slider 2 straddling the guide rail 1 so as to be relatively movable along the axial direction.
A rolling element rolling surface 3 extending in the axial direction is formed on both side surfaces of the guide rail 1, and a plurality of mounting holes 14 penetrating to the lower surface are formed on the upper surface of the guide rail 1 at substantially equal intervals in the axial direction. The place is formed. The slider body 2A of the slider 2 is formed with rolling element rolling surfaces 7 facing the rolling element rolling surfaces 3 on the inner side surfaces of both sleeve portions 4, respectively.

そして、これらの向き合った両転動体転動面３，７の間には転動体の一例としての多数のボールＢが転動自在に装填され、これらのボールＢの転動を介してスライダ２が案内レール１上を軸方向に沿って相対移動できるようになっている。
この移動につれて、案内レール１とスライダ２との間に介在するボールＢは転動してスライダ２の端部に移動するが、スライダ２を軸方向に継続して移動させていくためには、これらのボールＢを無限に循環させる必要がある。 A large number of balls B as an example of rolling elements are movably loaded between the rolling surfaces 3, 7 facing each other, and the slider 2 is moved via the rolling of these balls B. It can move relative to the guide rail 1 along the axial direction.
Along with this movement, the ball B interposed between the guide rail 1 and the slider 2 rolls and moves to the end of the slider 2, but in order to continuously move the slider 2 in the axial direction, It is necessary to circulate these balls B indefinitely.

このため、スライダ本体２Ａの袖部４内に軸方向に貫通する転動体通路８を形成すると共に、スライダ本体２Ａの両端にそれぞれ略コ字状のエンドキャップ５を例えばねじ１２等の固定手段を介して固定し、このエンドキャップ５に上記両転動体転動面３，７間と上記転動体通路８とを連通する円弧状に湾曲した方向転換路６を形成することにより、転動体無限循環軌道を形成している。   For this reason, a rolling element passage 8 penetrating in the axial direction is formed in the sleeve portion 4 of the slider body 2A, and substantially U-shaped end caps 5 are respectively attached to both ends of the slider body 2A. And the end cap 5 is formed with an arcuate curved direction change path 6 that communicates between the rolling elements rolling surfaces 3 and 7 and the rolling element passage 8. Forming an orbit.

なお、図３において、符号１１はエンドキャップ５と共にスライダ本体２Ａの端面にねじ１２等を介して固定されたサイドシール、１０はスライダ本体２Ａの端面に形成されたねじ１２のタップ穴、１３は給脂用ニップルである。
ところで、上記直動案内軸受装置の基台等への取り付けは、案内レール１の取付穴１４にボルト１５（図５参照）を挿入して該ボルト１５のねじ軸を基台等のねじ孔に締め付けることにより行われる。 In FIG. 3, reference numeral 11 denotes a side seal fixed to the end face of the slider body 2A together with the end cap 5 via a screw 12 or the like, 10 denotes a tapped hole of the screw 12 formed on the end face of the slider body 2A, and 13 denotes This is a grease nipple.
By the way, the linear guide bearing device is attached to the base or the like by inserting a bolt 15 (see FIG. 5) into the mounting hole 14 of the guide rail 1 and using the screw shaft of the bolt 15 as a screw hole of the base or the like. This is done by tightening.

かかる取り付け後は、取付穴１４の上部に設けられた座ぐり穴１６に例えば合成樹脂製のレールキャップ１７を嵌め込んで該取付穴１４を閉塞し、これにより、取付穴１４に異物が溜まるのを防止している。
レールキャップ１７としては、例えば図４に示すように、座ぐり穴１６の穴径に対応する外径寸法を有する短円柱部１８の外周部に締め代部１９が設けられたものが一般に用いられており、レールキャップ１７を案内レール１の座ぐり穴１６に嵌め込むには、レールキャップ１７の下端側周縁を座ぐり穴１６の開口部内周縁に形成された面取り部２０に合わせた後、レールキャップ１７の上面に当て材（図示せず）をあてがい、この状態で該当て材の上面を金槌等で少しずつ打ち込むことにより、図５に示すように、レールキャップ１７が座ぐり穴１６に締め代をもって嵌め込まれ、取付穴１４が閉塞される（例えば特許文献１及び特許文献２参照）。
特開２００２−２２７８３８号公報 特開２００２−４８１３８号公報 After such attachment, for example, a synthetic resin rail cap 17 is fitted into a counterbore 16 provided in the upper portion of the attachment hole 14 to close the attachment hole 14, whereby foreign matter accumulates in the attachment hole 14. Is preventing.
As the rail cap 17, for example, as shown in FIG. 4, a rail cap 17 in which a fastening margin 19 is provided on the outer peripheral portion of a short cylindrical portion 18 having an outer diameter corresponding to the hole diameter of the counterbore 16 is generally used. In order to fit the rail cap 17 into the counterbore 16 of the guide rail 1, after aligning the lower edge of the rail cap 17 with the chamfer 20 formed on the inner periphery of the opening of the counterbore 16, By applying a pad (not shown) to the upper surface of the cap 17 and driving the upper surface of the material little by little with a hammer etc. in this state, the rail cap 17 is tightened in the counterbore 16 as shown in FIG. The fitting hole 14 is closed with a margin (see, for example, Patent Document 1 and Patent Document 2).
JP 2002-227838 A JP 2002-48138 A

しかしながら、上記従来の直動案内軸受装置においては、レールキャップ１７が座ぐり穴１６に嵌め込まれた状態ではボルト１５とレールキャップ１７との間に空間が存在し、しかもレールキャップ１７の最大径と座ぐり穴１６の内径とは締め代分があるものの略同一径であるため、レールキャップ１７が座ぐり穴１６内に倒れた状態で嵌め込まれる場合がある。   However, in the above-described conventional linear guide bearing device, there is a space between the bolt 15 and the rail cap 17 when the rail cap 17 is fitted in the counterbore 16 and the maximum diameter of the rail cap 17 is set. The inner diameter of the counterbore 16 has substantially the same diameter as the tightening allowance, but the rail cap 17 may be fitted into the counterbore 16 in a tilted state.

また、レールキャップ１７が座ぐり穴１６に正常に嵌め込まれた場合でも、近年のクリーン化の要求の高まりにより、レールキャップ１７と座ぐり穴１６の開口部周縁に形成された面取り部２０との間のすき間２１に堆積する塵埃等が問題視されている。
本発明はこのような不都合を解消するためになされたものであり、レールキャップが座ぐり穴内に倒れた状態で嵌め込まれるのを防止することができると共に、レールキャップと座ぐり穴の開口部周縁の面取り部との間のすき間に塵埃等が堆積するのを抑制することができる直動案内軸受装置及びレールキャップを提供することを目的とする。 Even when the rail cap 17 is normally fitted into the counterbore 16, due to the recent increase in demand for cleanliness, the rail cap 17 and the chamfered portion 20 formed at the periphery of the opening of the counterbore 16 can be used. Dust and the like accumulated in the gaps 21 are regarded as problems.
The present invention has been made to eliminate such inconveniences, and can prevent the rail cap from being fitted in the counterbore in a fallen state, and can also prevent the peripheral edge of the opening of the rail cap and the counterbore. It is an object of the present invention to provide a linear motion guide bearing device and a rail cap that can suppress dust and the like from accumulating between the chamfered portions.

上記目的を達成するために、請求項１に係る発明は、軸方向に延びる転動体転動溝を有すると共に、上面から下面まで貫通する取付穴が軸方向に所定の間隔で複数箇所形成された案内レールと、外周部に締め代部を有し、前記取付穴の上部に設けられた座ぐり穴に嵌め込まれて該取付穴を閉塞するレールキャップと、前記案内レールの前記転動体転動溝に対向する転動体転動溝を有し、これらの転動体転動溝間に挿入された多数の転動体の転動を介して軸方向に沿って移動可能に前記案内レールに支持されたスライダとを備えた直動案内軸受装置において、
前記レールキャップの上面側外周縁に、前記座ぐり穴の開口部内周縁に形成された面取り部を覆うフランジ部を設けたことを特徴とする。
請求項２に係る発明は、外周部に締め代部を有し、直動案内軸受装置を構成する案内レールの取付穴の上部に設けられた座ぐり穴に嵌め込まれて該取付穴を閉塞するレールキャップであって、
上面側外周縁に、前記座ぐり穴の開口部内周縁に形成された面取り部を覆うフランジ部を設けたことを特徴とする。 In order to achieve the above object, the invention according to claim 1 has rolling element rolling grooves extending in the axial direction, and a plurality of mounting holes penetrating from the upper surface to the lower surface are formed at predetermined intervals in the axial direction. A guide rail, a rail cap having a tightening margin at the outer periphery, and fitted in a counterbore provided in an upper portion of the mounting hole to close the mounting hole; and the rolling element rolling groove of the guide rail And a slider supported by the guide rail so as to be movable along the axial direction through the rolling of a large number of rolling elements inserted between the rolling element rolling grooves. In a linear motion guide bearing device comprising:
A flange portion that covers a chamfered portion formed at the inner peripheral edge of the counterbore hole is provided on the outer peripheral edge on the upper surface side of the rail cap.
The invention according to claim 2 has a tightening margin portion on the outer peripheral portion, and is fitted into a counterbore provided in an upper portion of the mounting hole of the guide rail constituting the linear motion guide bearing device to close the mounting hole. Rail caps,
A flange portion that covers a chamfered portion formed on the inner peripheral edge of the counterbore hole is provided on the outer peripheral edge on the upper surface side.

本発明によれば、レールキャップの上面側外周縁に、案内レールの座ぐり穴の開口部内周縁に形成された面取り部を覆うフランジ部を設けているので、レールキャップが座ぐり穴内で倒れ込もうとしてもフランジ部が座ぐり穴の面取り部に掛止してレールキャップの倒れ込みを規制することができ、これにより、座ぐり穴内にレールキャップが倒れた状態で嵌め込まれるのを防止することができる。
また、レールキャップのフランジ部によって座ぐり穴の面取り部が覆われるため、レールキャップと座ぐり穴の面取り部との間のすき間に塵埃等が堆積するのを抑制することができる。 According to the present invention, since the flange portion that covers the chamfered portion formed on the inner peripheral edge of the opening of the guide rail is provided on the outer peripheral edge of the rail cap, the rail cap falls into the counterbore hole. Anyway, the flange part can be hooked on the chamfered part of the counterbore, and the rail cap can be prevented from falling down. This prevents the rail cap from being fitted in the counterbore hole in a fallen state. it can.
Further, since the chamfered portion of the counterbore hole is covered by the flange portion of the rail cap, it is possible to suppress dust and the like from accumulating in the gap between the rail cap and the chamfered portion of the counterbore hole.

以下、本発明の実施の形態の一例を図を参照して説明する。
図１は本発明の実施の形態の一例であるレールキャップを説明するための図で、（ａ）は径方向外方から見た図、（ｂ）は（ａ）の矢印Ａ方向から見た図、図２はレールキャップを案内レールの座ぐり穴に嵌め込んだ状態を示す断面図である。なお、この実施の形態では、既に図３及び図５で説明した従来の直動案内軸受装置に対して、案内レールの取付穴を閉塞するレールキャップが相違するのみであるため、レールキャップについてのみ説明し、案内レール等の符号については図３及び図５を流用する。 Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings.
1A and 1B are diagrams for explaining a rail cap as an example of an embodiment of the present invention. FIG. 1A is a diagram viewed from the outside in the radial direction, and FIG. 1B is a diagram viewed from the direction of arrow A in FIG. FIG. 2 and FIG. 2 are sectional views showing a state in which the rail cap is fitted into the counterbore of the guide rail. In this embodiment, the rail cap for closing the mounting hole of the guide rail is different from the conventional linear guide bearing device already described with reference to FIGS. 3 and 5 are used for the explanation of the reference rails and the like.

本発明の実施の形態の一例であるレールキャップ３０は、図１に示すように、案内レール１の座ぐり穴１６（図２参照）の穴径に対応する外径寸法を有する短円柱部３１と、該短円柱部３１の外周部に周方向に略等間隔で複数箇所設けられたＲ突起状の締め代部３２とを備えており、また、レールキャップ３０の下端側外周縁には下方に向けて縮径する面取り部３３が形成されている。
ここで、この実施の形態では、レールキャップ３０の上面側外周縁に、案内レール１の座ぐり穴１６の開口部内周縁に形成された面取り部２０を覆うフランジ部３４を設けている。
フランジ部３４は、上面がレールキャップ３０の上面と面一とされており、また、下面側には座ぐり穴１６の面取り部２０に対応する斜面部３５が形成されている。 As shown in FIG. 1, a rail cap 30, which is an example of an embodiment of the present invention, has a short cylindrical portion 31 having an outer diameter corresponding to the hole diameter of a counterbore 16 (see FIG. 2) of the guide rail 1. And R-projection-shaped fastening margins 32 provided at a plurality of positions in the circumferential direction at substantially equal intervals on the outer peripheral portion of the short cylindrical portion 31, A chamfered portion 33 having a diameter reduced toward is formed.
Here, in this embodiment, the flange portion 34 that covers the chamfered portion 20 formed on the inner peripheral edge of the opening of the counterbore 16 of the guide rail 1 is provided on the outer peripheral edge of the rail cap 30.
The upper surface of the flange portion 34 is flush with the upper surface of the rail cap 30, and a slope portion 35 corresponding to the chamfered portion 20 of the counterbore 16 is formed on the lower surface side.

そして、レールキャップ３０を案内レールの座ぐり穴１６に嵌め込むには、レールキャップ３０の下端側周縁の面取り部３３を座ぐり穴１６の面取り部２０に合わせた後、レールキャップ３０の上面に当て材（図示せず）をあてがい、この状態で該当て材の上面を金槌等で少しずつ打ち込むことにより、図２に示すように、フランジ部３４が座ぐり穴１６の面取り部２０を覆った状態でレールキャップ３０が座ぐり穴１６に締め代をもって嵌め込まれ、これにより、レールキャップ３０及びフランジ部３４の上面が案内レール１の上面と略面一となった状態で取付穴１４が閉塞される。   In order to fit the rail cap 30 into the counterbore 16 of the guide rail, the chamfered portion 33 on the lower end side of the railcap 30 is aligned with the chamfered portion 20 of the counterbore 16 and then the upper surface of the rail cap 30 is placed. In this state, a flange member 34 covered the chamfered portion 20 of the counterbore 16 as shown in FIG. 2 by applying a pad (not shown) and driving the upper surface of the material little by little with a hammer. In this state, the rail cap 30 is fitted into the counterbore 16 with a tightening margin, whereby the mounting hole 14 is closed in a state where the upper surfaces of the rail cap 30 and the flange portion 34 are substantially flush with the upper surface of the guide rail 1. The

このようにこの実施の形態では、レールキャップ３０の上面側外周縁に、案内レール１の座ぐり穴１６の面取り部２０を覆うフランジ部３４を設けているので、レールキャップ３０が座ぐり穴１６内で倒れ込もうとしてもフランジ部３４が座ぐり穴１６の面取り部２０に掛止してレールキャップ３０の倒れ込みを規制することができる。
これにより、案内レール１の座ぐり穴１６内にレールキャップ３０が倒れた状態で嵌め込まれるのを防止することができる。 As described above, in this embodiment, the flange portion 34 that covers the chamfered portion 20 of the counterbore 16 of the guide rail 1 is provided on the outer peripheral edge of the rail cap 30, so that the rail cap 30 has the counterbore 16. Even if it tries to fall inside, the flange part 34 can be hooked on the chamfered part 20 of the counterbore 16 and the fall of the rail cap 30 can be regulated.
As a result, the rail cap 30 can be prevented from being fitted in the counterbore 16 of the guide rail 1 in a fallen state.

また、レールキャップ３０のフランジ部３４によって案内レール１の座ぐり穴１６の面取り部２０が覆われるため、レールキャップ３０と座ぐり穴１６の面取り部２０との間のすき間に塵埃等が堆積するのを抑制することができる。
なお、本発明の転動体転動溝、取付穴、案内レール、締め代部、座ぐり穴、レールキャップ、転動体、スライダ、レールキャップ、面取り部、フランジ部等の構成は上記実施の形態に例示したものに限定されるものではなく、本発明の要旨を逸脱しない範囲において適宜変更可能である。 Further, since the chamfered portion 20 of the counterbore 16 of the guide rail 1 is covered by the flange portion 34 of the rail cap 30, dust or the like accumulates in the gap between the rail cap 30 and the chamfered portion 20 of the counterbore 16. Can be suppressed.
The configuration of the rolling element rolling groove, mounting hole, guide rail, tightening margin, counterbore, rail cap, rolling element, slider, rail cap, chamfered portion, flange portion, etc. of the present invention is the same as the above embodiment. It is not limited to what was illustrated, and can be suitably changed in the range which does not deviate from the gist of the present invention.

本発明の実施の形態の一例であるレールキャップを説明するための図で、（ａ）は径方向外方から見た図、（ｂ）は（ａ）の矢印Ａ方向から見た図である。It is a figure for demonstrating the rail cap which is an example of embodiment of this invention, (a) is the figure seen from radial direction outward, (b) is the figure seen from the arrow A direction of (a). . レールキャップを案内レールの座ぐり穴に嵌め込んだ状態を示す断面図である。It is sectional drawing which shows the state which fitted the rail cap in the counterbore of a guide rail. 直動案内軸受装置の一例を説明するための一部を破断した斜視図である。It is the perspective view which fractured | ruptured one part for demonstrating an example of a linear guide bearing apparatus. 従来のレールキャップを説明するための図で、（ａ）は径方向外方から見た図、（ｂ）は（ａ）の矢印Ａ方向から見た図である。It is a figure for demonstrating the conventional rail cap, (a) is the figure seen from radial direction outer side, (b) is the figure seen from the arrow A direction of (a). 従来のレールキャップを案内レールの座ぐり穴に嵌め込んだ状態を示す断面図である。It is sectional drawing which shows the state which fitted the conventional rail cap in the counterbore of a guide rail.

符号の説明Explanation of symbols

１ 案内レール
２ スライダ
３ 転動体転動溝（案内レール側）
７ 転動体転動溝（スライダ側）
Ｂ 転動体
１４ 取付穴
１６ 座ぐり穴
２０ 面取り部
３０ レールキャップ
３２ 締め代部
３４ フランジ部 1 Guide rail 2 Slider 3 Rolling element rolling groove (guide rail side)
7 Rolling element rolling groove (slider side)
B Rolling element 14 Mounting hole 16 Counterbore 20 Chamfer 30 Rail cap 32 Fastening margin 34 Flange

Claims (2)

軸方向に延びる転動体転動溝を有すると共に、上面から下面まで貫通する取付穴が軸方向に所定の間隔で複数箇所形成された案内レールと、外周部に締め代部を有し、前記取付穴の上部に設けられた座ぐり穴に嵌め込まれて該取付穴を閉塞するレールキャップと、前記案内レールの前記転動体転動溝に対向する転動体転動溝を有し、これらの転動体転動溝間に挿入された多数の転動体の転動を介して軸方向に沿って移動可能に前記案内レールに支持されたスライダとを備えた直動案内軸受装置において、
前記レールキャップの上面側外周縁に、前記座ぐり穴の開口部内周縁に形成された面取り部を覆うフランジ部を設けたことを特徴とする直動案内軸受装置。 The mounting rail has a rolling element rolling groove extending in the axial direction, a plurality of mounting holes penetrating from the upper surface to the lower surface are formed at predetermined intervals in the axial direction, and a fastening margin portion on the outer peripheral portion. A rail cap that fits into a counterbore provided in the upper part of the hole and closes the mounting hole; and a rolling element rolling groove facing the rolling element rolling groove of the guide rail, and these rolling elements In a linear motion guide bearing device comprising a slider supported by the guide rail so as to be movable along the axial direction through rolling of a large number of rolling elements inserted between rolling grooves,
A linear guide bearing device comprising a flange portion covering a chamfered portion formed at an inner peripheral edge of the counterbore hole at an outer peripheral edge of the rail cap on an upper surface side. 外周部に締め代部を有し、直動案内軸受装置を構成する案内レールの取付穴の上部に設けられた座ぐり穴に嵌め込まれて該取付穴を閉塞するレールキャップであって、
上面側外周縁に、前記座ぐり穴の開口部内周縁に形成された面取り部を覆うフランジ部を設けたことを特徴とするレールキャップ。 A rail cap that has a tightening margin at the outer periphery and is fitted into a counterbore provided in an upper part of a mounting hole of a guide rail constituting the linear guide bearing device, and closes the mounting hole,
A rail cap comprising a flange portion covering a chamfered portion formed at an inner peripheral edge of the opening of the counterbore on the outer peripheral edge on the upper surface side.
JP2005305241A 2005-10-20 2005-10-20 Linear guide bearing device and rail cap Pending JP2007113671A (en)

Priority Applications (1)

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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Publications (1)

Publication Number Publication Date
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2653738A3 (en) * 2012-04-18 2015-02-11 Aktiebolaget SKF Covering cap
WO2017164330A1 (en) * 2016-03-25 2017-09-28 Thk株式会社 Cap for movement guide device
JP2017180835A (en) * 2016-03-25 2017-10-05 Thk株式会社 Cap for motion guide device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2653738A3 (en) * 2012-04-18 2015-02-11 Aktiebolaget SKF Covering cap
WO2017164330A1 (en) * 2016-03-25 2017-09-28 Thk株式会社 Cap for movement guide device
JP2017180835A (en) * 2016-03-25 2017-10-05 Thk株式会社 Cap for motion guide device
US10371203B2 (en) 2016-03-25 2019-08-06 Thk Co., Ltd. Cap for motion guide apparatus
DE112017001548B4 (en) * 2016-03-25 2020-02-06 Thk Co., Ltd. Guide cap

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