JPS62134960U

JPS62134960U -

Info

Publication number: JPS62134960U
Application number: JP2267886U
Authority: JP
Priority date: 1986-02-19
Filing date: 1986-02-19
Publication date: 1987-08-25

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す図で第２図の
右側面図、第２図は本考案の一実施例を示す平面
説明図、第３図は第２図の―線に沿う断面図
、第４図は第１図のＡ部拡大図、第５図は第２図
のＢ部拡大図、第６図は第５図の―線に沿う
断面図、第７図は第１図のＣ部拡大図で第５図の
―線に沿う断面図、第８図および第９図は予
圧伝達系の作用説明図、第１０図は従来のスライ
ド機構の説明図である。１……ドライブユニツト、２……モータ、３…
…減速機、４……ピニオン、６……ラツク、７…
…スライダ、８……ガイドレール、１２……ヒン
ジピン、１８……予圧機構、１９……テーパ部（
傾斜面）、２１……ホルダーブロツク、２２……
スペーサ、２４……弾性体としてのコイルばね。 Fig. 1 is a diagram showing an embodiment of the present invention, and is a right side view of Fig. 2, Fig. 2 is a plan explanatory diagram showing an embodiment of the present invention, and Fig. 3 is along the - line of Fig. 2. 4 is an enlarged view of part A in Fig. 1, Fig. 5 is an enlarged view of part B in Fig. 2, Fig. 6 is a sectional view taken along the - line in Fig. This is an enlarged view of part C in the figure, and a sectional view taken along the line -- in FIG. 5, FIGS. 8 and 9 are diagrams for explaining the operation of the preload transmission system, and FIG. 10 is a diagram for explaining the conventional slide mechanism. 1...Drive unit, 2...Motor, 3...
...Reducer, 4...Pinion, 6...Rack, 7...
...Slider, 8...Guide rail, 12...Hinge pin, 18...Preload mechanism, 19...Tapered part (
slope), 21... holder block, 22...
Spacer, 24...Coil spring as an elastic body.

Claims

[Scope of utility model registration request]

It has a slider that is capable of linear reciprocating motion, is mounted on this slider, and has a pinion in the output section,
In a structure that includes a drive unit that rotationally drives the pinion and a fixed rack that meshes with the pinion, and converts the rotational movement of the pinion into linear movement of the slider, the drive unit is moved relative to the slider, and a fixed rack that engages with the pinion. While the slider is rotatably supported around an axis parallel to the rotation center, a preload mechanism is provided between the slider and the drive unit to constantly press the pinion against the rack, and this preload mechanism is fixed to the slider. a holder block, a sloped surface formed on the drive unit side to face the holder block, a spacer with a wedge-shaped cross section interposed between the holder block and the sloped surface, and a wedge-shaped spacer interposed between the spacer and the center of rotation of the pinion. What is claimed is: 1. A backlash removal device for a rack-pinion drive system, characterized in that it is comprised of a breaking body that biases in the same direction as the direction of the collision.