JPS5812716U

JPS5812716U - Raceway plate holder for linear motion ball bearings

Info

Publication number: JPS5812716U
Application number: JP10641781U
Authority: JP
Inventors: 持館達夫
Original assignee: 日本トムソン株式会社
Priority date: 1981-07-17
Filing date: 1981-07-17
Publication date: 1983-01-26
Also published as: JPS5847307Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は実施例の外側端面を示す立面図、第２図は同上
側面図、第３図は第１図中■−■円弧線拡大部分断面図
、第４図は第１図中ｆＶ−ＩＶ線拡大部分断面図、第５
図は直線運動玉軸受の実施例側面図、第６図は同上端面
を示す立面図、第７図は右手に第５図中■−■線断面を
示す立面図、第８図はスライドユニットの中央縦断面図
、第９図は従来例の有限摺動フロ軸受の部分断面を含む
斜視図、第１０図は同上進行方向と直角な面における断
面図、第１１図は従来例の無限摺動玉軸受の進行方向と
直角な面における断面図、第１２図は第１１図中■−刈
線部分拡大断面図、第１３図は右半分はシール側の、左
半分は軌道う°レート押え側の面をそれぞれ示す側板の
立面図。１ニドラツクレール、２ニスライドユニツト、３：ボー
ル、４，５：軌道面、６：外側面、７：内側面、８：リ
ターン孔、１０二方向転換路、ｉｏａ、１０ｂ：短側面
、１３：側板、１４：軌道プレート押え、１５：本体、
１６：軌道プレート、３０：凹部、３１：内側縁、３２
：爪体、３４：切込み、３５：円孔。Fig. 1 is an elevational view showing the outer end surface of the embodiment, Fig. 2 is a side view of the same, Fig. 3 is an enlarged partial sectional view of the arc line ■-■ in Fig. 1, and Fig. 4 is fV in Fig. 1. - IV line enlarged partial sectional view, 5th
The figure is a side view of an embodiment of a linear motion ball bearing, Figure 6 is an elevational view showing the upper end surface of the same, Figure 7 is an elevational view showing the section taken along the line ■-■ in Figure 5 to the right, and Figure 8 is a slide. Fig. 9 is a perspective view including a partial cross section of a conventional finite sliding flow bearing, Fig. 10 is a sectional view taken in a plane perpendicular to the direction of movement of the same, and Fig. 11 is an infinity view of a conventional example. A cross-sectional view of the sliding ball bearing in a plane perpendicular to the direction of movement. Figure 12 is an enlarged cross-sectional view of the ■-grain line part in Figure 11. Figure 13 shows the right half of the seal side and the left half of the raceway rate. FIG. 3 is an elevational view of the side plate showing the presser side surfaces. 1. Nidratsu rail, 2. Nidratsu rail, 3: ball, 4, 5: raceway surface, 6: outer surface, 7: inner surface, 8: return hole, 10 two-way switching path, ioa, 10b: short side, 13: side plate , 14: Orbit plate holder, 15: Main body,
16: Orbital plate, 30: Recess, 31: Inner edge, 32
: Claw body, 34: Notch, 35: Circular hole.

Claims

[Claims for Utility Model Registration] A slide unit straddles a track rail having a rectangular cross section and having linear track surfaces provided at symmetrical positions on both vertical sides, A raceway surface facing the raceway surface, a linear IJ turn hole (7) parallel to the raceway surface, and a direction change path connecting both ends of the raceway surface and the return hole, respectively, are provided, A track plate holder having the following structure of the slide unit in a ball bearing for linear motion, in which a circulation path is formed between which a group of balls bearing a load and rolling are endlessly circulated. (1) On the U-shaped inner surface of the slide unit main body,
A rod-like track plate having a semi-cylindrical track surface is fitted symmetrically at a position facing the track surface of the track rail, and a track plate of the main body is circumscribed at both ends of the return hole. It is a plate-shaped body that is attached to both end faces and forms a part of the direction change path together with the side plates that are attached to the circumference. (2) A downwardly facing U-shaped recess is formed spanning the track rail. (3) At the upper end of the inner side edge of the recessed portion, there is approximately a short claw body having elasticity that presses the inner end of the raceway plate outward (just above the raceway surface end of the raceway plate) and presses the inner end of the raceway plate outward. (4) At a position abutting the end of the raceway surface of the raceway plate,
A semicircular notch is drilled that connects to the raceway surface, which is the load area, and forms a part of the direction change path, and a semicircular notch that connects to the return hole, which is the no-load area, is provided at a position that abuts the end of the return hole. A circular hole forming a part of the direction change path is bored, and the side surface of the notch and the side surface of the circular hole that comes into contact with the side plate is formed obliquely so as to form a three-dimensional arc-shaped curved surface of the direction change path. is being done.