JPH0519651U - Slide bush for small diameter - Google Patents

Slide bush for small diameter

Info

Publication number
JPH0519651U
JPH0519651U JP4505491U JP4505491U JPH0519651U JP H0519651 U JPH0519651 U JP H0519651U JP 4505491 U JP4505491 U JP 4505491U JP 4505491 U JP4505491 U JP 4505491U JP H0519651 U JPH0519651 U JP H0519651U
Authority
JP
Japan
Prior art keywords
ball
shaft
metal
slide bush
diameter
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP4505491U
Other languages
Japanese (ja)
Inventor
充 山崎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Bearing Co Ltd
Original Assignee
Nippon Bearing 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 Nippon Bearing Co Ltd filed Critical Nippon Bearing Co Ltd
Priority to JP4505491U priority Critical patent/JPH0519651U/en
Publication of JPH0519651U publication Critical patent/JPH0519651U/en
Pending legal-status Critical Current

Links

Landscapes

  • Bearings For Parts Moving Linearly (AREA)
  • Powder Metallurgy (AREA)

Abstract

(57)【要約】 【目的】 本考案は、ボールの転動が非常に円滑である
とともに耐久性に秀れた小径用スライドブッシュを提供
することを目的とするものである。 【構成】 軸径φ3mm〜5mm程度の小径の軸2と,この
軸2に被嵌される小径の外筒1と,該外筒1と該軸2と
の間に配されるボール3と,ボール3が脱落しないよう
にボール3を保持する為のボール保持器4とから成る小
径用スライドブッシュにおいて、前記ボール保持器4
に、金属微粉末による金属射出成形法により成型した金
属製のボール保持器4を採用したものである。
(57) [Summary] [Object] An object of the present invention is to provide a slide bush for small diameters, in which rolling of the ball is extremely smooth and durability is excellent. [Structure] A small-diameter shaft 2 having a shaft diameter of about 3 mm to 5 mm, a small-diameter outer cylinder 1 fitted on the shaft 2, and a ball 3 arranged between the outer cylinder 1 and the shaft 2. A ball bushing 4 for holding the ball 3 so that the ball 3 does not fall off.
In addition, the metal ball cage 4 molded by the metal injection molding method using fine metal powder is adopted.

Description

【考案の詳細な説明】[Detailed description of the device]

【0001】[0001]

【産業上の利用分野】[Industrial applications]

本考案は小径用スライドブッシュにおけるボール保持器に関するものである。 The present invention relates to a ball retainer for a small diameter slide bush.

【0002】[0002]

【従来の技術】[Prior Art]

従来から、軸と,この軸に被嵌される外筒と,外筒と軸との間に配されるボール と,ボールが脱落しないようにボールを保持する為のボール保持器とから成るス ライドブッシュは多種市販されている。 BACKGROUND ART Conventionally, a shaft includes a shaft, an outer cylinder fitted on the shaft, balls arranged between the outer cylinder and the shaft, and a ball retainer for holding the ball so that the ball does not fall off. Ride bushes are commercially available in various types.

【0003】[0003]

【考案が解決しようとする課題】[Problems to be solved by the device]

ところで、このようなスライドブッシュにおけるボール保持器は一般に金属製 のものと合成樹脂製のものとがある。 By the way, ball retainers in such slide bushes are generally made of metal or synthetic resin.

【0004】 金属製のボール保持器は、金属プレートをプレス成型したり、また薄肉の金属 パイプをプレス成型したりして製作するもので、金属製故に機械的強度の点では 秀れているが、ボール保持器に形成するボール走行溝をボール径に合致させて形 成することが難しく、この点がボールを円滑転動させることの妨げとなっている 。The metal ball cage is manufactured by press-molding a metal plate or press-molding a thin metal pipe, and is excellent in mechanical strength because it is made of metal. However, it is difficult to form the ball running groove formed in the ball cage to match the ball diameter, which hinders smooth rolling of the ball.

【0005】 一方、合成樹脂製のボール保持器は、ボール走行溝を正確に形成することは可 能であるが、機械的強度,摩耗による耐久性,耐薬品性等の問題があり該合成樹脂 製のボール保持器を有するスライドブッシュはその使用場所が限定されてしまう という問題点を有する。On the other hand, a ball cage made of synthetic resin can accurately form a ball running groove, but has problems of mechanical strength, durability due to abrasion, chemical resistance, etc. The slide bush having the ball retainer made of the resin has a problem that its use place is limited.

【0006】 現実には、軸径φ6mm以上のスライドブッシュのボール保持器はスチール製で あり、軸径φ6mm以下のスライドブッシュのボール保持器は合成樹脂製である。 軸径φ6mm以下のスライドブッシュのボール保持器をスチール製とすることは精 度等の問題で製作上厄介だからである(軸径φ3mm以下のスライドブッシュは強 度の問題で多用されていない。)。In reality, the slide bush ball retainer with a shaft diameter of φ6 mm or more is made of steel, and the slide bush ball retainer with a shaft diameter of φ6 mm or less is made of synthetic resin. This is because it is difficult to manufacture the ball cage of the slide bush with a shaft diameter of φ6 mm or less from steel because of problems such as accuracy (a slide bush with a shaft diameter of φ3 mm or less is not frequently used due to its strength). .

【0007】 従って、軸径φ3mm〜5mmのスチール製のボール保持器は未だ存しない。Therefore, a steel ball retainer having a shaft diameter of 3 mm to 5 mm has not existed yet.

【0008】 本考案は上記問題点を解決したもので、金属製ボール保持器と合成樹脂製ボー ル保持器との長所を具備したボール保持器を有する小径用スライドブッシュを提 供することを技術的課題とするものである。The present invention solves the above-mentioned problems, and it is technically possible to provide a slide bush for small diameter having a ball retainer having the advantages of a metal ball retainer and a synthetic resin ball retainer. This is an issue.

【0009】[0009]

【課題を解決するための手段】[Means for Solving the Problems]

添付図面を参照して本考案の要旨を説明する。 The gist of the present invention will be described with reference to the accompanying drawings.

【0010】 軸径φ3mm〜5mm程度の小径の軸2と,この軸2に被嵌される小径の外筒1と, 該外筒1と該軸2との間に配されるボール3と,ボール3が脱落しないようにボ ール3を保持する為のボール保持器4とから成る小径用スライドブッシュにおい て、前記ボール保持器4に、金属微粉末による金属射出成形法により成型した金 属製のボール保持器4を採用したことを特徴とする小径用スライドブッシュに係 るものである。A shaft 2 having a small diameter of about 3 mm to 5 mm, an outer cylinder 1 having a small diameter fitted on the shaft 2, and a ball 3 arranged between the outer cylinder 1 and the shaft 2. In a slide bush for small diameter, which comprises a ball retainer 4 for retaining the ball 3 so that the ball 3 does not fall out, a metal formed by finely powdering metal into the ball retainer 4 by a metal injection molding method. The present invention relates to a slide bush for small diameter, which is characterized by adopting a ball retainer 4 made of steel.

【0011】[0011]

【作用】[Action]

金属微粉末による金属射出形成により形成されたボール保持器4は、プレス加 工等により形成する金属製ボール保持器及び射出成形により成型する合成樹脂製 ボール保持器のそれぞれの長所即ち、強度に秀れ且つ精度の高いボール保持器4 となる。 The ball retainer 4 formed by metal injection molding using fine metal powder is excellent in strength, that is, strength of the metal ball retainer formed by press working and the synthetic resin ball retainer formed by injection molding. In addition, the ball cage 4 has high accuracy.

【0012】[0012]

【実施例】【Example】

図1,2,3,4,5は金属射出成形法により成型した軸径がφ3mm〜5mm程度の 小径用スライドブッシュにおけるボール保持器4であり、図6は金属射出成形法 の概略図である。 1, 2, 3, 4, and 5 show a ball cage 4 in a small-diameter slide bush having a shaft diameter of about φ3 mm to 5 mm formed by a metal injection molding method, and FIG. 6 is a schematic view of the metal injection molding method. .

【0013】 ここで、金属射出成形法につて図6を参照にその概略を説明する。Here, an outline of the metal injection molding method will be described with reference to FIG.

【0014】 まず、該成型法は、1〜40μm程度の金属の微粉末(例えばステンレス鋼等 の微粉末)に容量%で40%のバインダー(有機溶剤)を加えて混練し、射出成型 後加熱脂脱工程を経、その後焼結工程を行ない、後加工してボール保持器4を完 成させるものである。First, in the molding method, 40% by volume of a binder (organic solvent) is added to a fine metal powder (for example, fine powder of stainless steel or the like) of about 1 to 40 μm and kneaded, followed by injection molding and heating. After the degreasing process, the sintering process is performed, and the ball cage 4 is completed by post-processing.

【0015】 金属微粉末はFe系,FeーNi系,ステンレス鋼系,等どのような微粉末を用いて も良く、用途に応じて種々選択する。The fine metal powder may be any fine powder such as Fe-based powder, Fe-Ni-based powder, stainless steel-based powder, etc., and various powders are selected according to the application.

【0016】 また、バインダーは微粉末の形状を保つ為の結合作用と微粉末粒子間の滑りを 良くする滑作用と微粉末に柔軟性を与える為の可塑作用の三作用を発揮するもの を用いる。As the binder, a binder that exhibits three functions of a binding action for maintaining the shape of the fine powder, a sliding action for improving the slip between the fine powder particles, and a plasticizing action for giving the fine powder flexibility is used. .

【0017】 このような金属射出成型法によると、金属微粉末そのものの塑性変形を利用し ないでバインダー添加により塑性を得る為、硬い合金粉末が使用できることにな り、また、1〜40μmの微細な粉末を利用するため最終的に焼結体の相対密度 を95%以上と高めることも可能となり、高密度のボール保持器4が製作し得る ことになる。According to such a metal injection molding method, since a plasticity is obtained by adding a binder without utilizing the plastic deformation of the fine metal powder itself, a hard alloy powder can be used, and a fine powder of 1 to 40 μm can be used. Since such a powder is used, the relative density of the sintered body can be finally increased to 95% or more, and the high-density ball cage 4 can be manufactured.

【0018】 これらのメリットは、ボール保持器4の特性に合致するもので、高品質のボー ル保持器4を製作し得ることになる。These merits are in agreement with the characteristics of the ball cage 4, and the high-quality ball cage 4 can be manufactured.

【0019】 図中符号5はボール走行溝、6は無負荷ボール軌道を構成する半溝である。In the figure, reference numeral 5 is a ball running groove, and 6 is a half groove forming an unloaded ball track.

【0020】[0020]

【考案の効果】[Effect of the device]

本考案は上述のように構成したから、プレス加工等により形成する金属製ボー ル保持器及び射出成形により成型する合成樹脂製ボール保持器の欠点が解消され 、高精度故にボールの転動が非常に円滑であるとともに高強度故に耐久性に秀れ た小径用スライドブッシュとなる。 Since the present invention is configured as described above, the drawbacks of the metal ball cage formed by press working and the synthetic resin ball cage molded by injection molding are solved, and ball rolling is highly accurate due to high precision. It is a slide bush for small diameter that is extremely smooth and has high durability due to its high strength.

【図面の簡単な説明】[Brief description of drawings]

【図1】本考案に係るボール保持器の正面図である。FIG. 1 is a front view of a ball cage according to the present invention.

【図2】本考案に係るボール保持器の断面図である。FIG. 2 is a sectional view of a ball cage according to the present invention.

【図3】本考案に係る別ボール保持器の正面図である。FIG. 3 is a front view of another ball retainer according to the present invention.

【図4】本考案に係る別ボール保持器の断面図である。FIG. 4 is a cross-sectional view of another ball retainer according to the present invention.

【図5】本考案の断面図である。FIG. 5 is a sectional view of the present invention.

【図6】本考案に係る金属射出成型法の説明図である。FIG. 6 is an explanatory view of a metal injection molding method according to the present invention.

【符号の説明】[Explanation of symbols]

1 外筒 2 軸 3 ボール 4 ボール保持器 1 outer cylinder 2 axis 3 ball 4 ball cage

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】 軸径φ3mm〜5mm程度の小径の軸と,こ
の軸に被嵌される小径の外筒と,該外筒と該軸との間に
配されるボールと,ボールが脱落しないようにボールを
保持する為のボール保持器とから成る小径用スライドブ
ッシュにおいて、前記ボール保持器に、金属微粉末によ
る金属射出成形法により成型した金属製のボール保持器
を採用したことを特徴とする小径用スライドブッシュ。
1. A shaft having a small diameter of about 3 mm to 5 mm, a small-diameter outer cylinder fitted on the shaft, a ball arranged between the outer cylinder and the shaft, and a ball not falling off. In the slide bush for small diameters, which comprises a ball retainer for holding balls, a metal ball retainer molded by a metal injection molding method using fine metal powder is adopted as the ball retainer. Small diameter slide bush.
JP4505491U 1991-06-15 1991-06-15 Slide bush for small diameter Pending JPH0519651U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4505491U JPH0519651U (en) 1991-06-15 1991-06-15 Slide bush for small diameter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4505491U JPH0519651U (en) 1991-06-15 1991-06-15 Slide bush for small diameter

Publications (1)

Publication Number Publication Date
JPH0519651U true JPH0519651U (en) 1993-03-12

Family

ID=12708641

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4505491U Pending JPH0519651U (en) 1991-06-15 1991-06-15 Slide bush for small diameter

Country Status (1)

Country Link
JP (1) JPH0519651U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003028157A (en) * 2001-07-17 2003-01-29 Nippon Thompson Co Ltd Limited linear motion guide unit provided with displacement of cage preventing mechanism

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4413212Y1 (en) * 1965-06-02 1969-06-02
JPH02107704A (en) * 1988-10-14 1990-04-19 Fujitsu Ltd Manufacture of injection molding powder sintered body

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4413212Y1 (en) * 1965-06-02 1969-06-02
JPH02107704A (en) * 1988-10-14 1990-04-19 Fujitsu Ltd Manufacture of injection molding powder sintered body

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003028157A (en) * 2001-07-17 2003-01-29 Nippon Thompson Co Ltd Limited linear motion guide unit provided with displacement of cage preventing mechanism

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