JPH02127820U

JPH02127820U -

Info

Publication number: JPH02127820U
Application number: JP3662889U
Authority: JP
Priority date: 1989-03-30
Filing date: 1989-03-30
Publication date: 1990-10-22
Anticipated expiration: 2004-03-30
Also published as: JPH0620898Y2

Description

[Brief explanation of drawings]

第１図ないし第８図は本考案の一実施例を示す
ものであり、第１図は一部を切り欠いた平面図、
第２図は同じく側面図、第３図は第１図の−
線断面図、第４図は第１図の−線断面図、第
５図は第１図の−線断面図、第６図は第１図
の防塵ベルトの斜視図、第７図はベルト押えの斜
視図、第８図は第１図の−線断面図、第９図
は本考案の他の実施例の第５図相当断面図、第１
０図、第１１図はそれぞれ防塵ベルトの変形例の
斜視図、第１２図は１本ベルトの場合の駆動系の
変形例の要部平面図、第１３図は従来の防塵カバ
ー付送り装置の模式側面図である。１，１１は案内レール、１２，１４はボール転
動溝、２，１３はスライダ、１３Ｂは被駆動体取
付突部、１５はボール戻り孔、１６はエンドキヤ
ツプ、１８はボール、２２は送りねじ軸、２６ａ
，２６ｂはサポートユニツト、２８は駆動モータ
、３４はプーリ、３６は防塵ベルト、４１はユニ
ツトカバー、４２は長穴、４３はベルト押え。 1 to 8 show an embodiment of the present invention, and FIG. 1 is a partially cutaway plan view;
Figure 2 is the same side view, Figure 3 is the − of Figure 1.
4 is a sectional view taken along the - line in Fig. 1, Fig. 5 is a sectional view taken along the - line in Fig. 1, Fig. 6 is a perspective view of the dustproof belt shown in Fig. 1, and Fig. 7 is a belt holder. FIG. 8 is a sectional view taken along the line -- in FIG. 1, FIG. 9 is a sectional view corresponding to FIG. 5 of another embodiment of the present invention, and FIG.
Figures 0 and 11 are perspective views of modified examples of dust-proof belts, Figure 12 is a plan view of essential parts of a modified example of a drive system in the case of a single belt, and Figure 13 is a diagram of a conventional feeder with a dust-proof cover. FIG. 1 and 11 are guide rails, 12 and 14 are ball rolling grooves, 2 and 13 are sliders, 13B is a driven body mounting projection, 15 is a ball return hole, 16 is an end cap, 18 is a ball, and 22 is a feed screw Axis, 26a
, 26b is a support unit, 28 is a drive motor, 34 is a pulley, 36 is a dustproof belt, 41 is a unit cover, 42 is a long hole, and 43 is a belt holder.

Claims

[Scope of Claim for Utility Model Registration] (1) A guide rail with a concave cross-section and an axial ball rolling groove on the inner surface, and a ball rolling groove on the outer surface opposite to the ball rolling groove of the guide rail. , and has a through hole in the inner wall thickness that serves as a ball return hole parallel to this, and
An end cap having a semi-doughnut-shaped curved path for communicating the ball rolling groove and the ball return hole is fixed to the end, and a threaded hole into which the feed screw shaft is screwed is provided inside the shaft center, a slider that moves along a guide rail; and a slider that is rotatably fitted into a ball rolling groove of the guide rail and a ball rolling groove of the slider opposing thereto, and circulates through the curved path and the ball return hole. the guide rail has a large number of balls extending outwardly from the upper opening of the guide rail, and a parallel elongated hole extending in the axial direction to allow movement in the axial direction of a driven body mounting protrusion of the slider that protrudes from the upper opening of the guide rail; a unit cover that covers the opening of the rail; a dustproof belt that covers the elongated hole of the unit cover and is fixed to the slider so as to be movable as the slider moves; and a dustproof belt that rotates at both ends of the guide rail to guide the dustproof belt. A feeding device with a dustproof cover, which is equipped with a pair of freely supported pulleys. (2) Claim (1) characterized in that a belt presser is attached to the unit cover to press the dustproof belt against the unit cover with an elastic force so as to bring it into close contact with the unit cover.
)Feeding device with dustproof cover. (3) A support unit is fixed to each end of the guide rail, and the support unit rotatably supports the feed screw shaft and the pair of pulleys.
A feeding device with a dustproof cover as described in (1) or (2).