JPH0254643U

JPH0254643U -

Info

Publication number: JPH0254643U
Application number: JP13253188U
Authority: JP
Priority date: 1988-10-11
Filing date: 1988-10-11
Publication date: 1990-04-20

Description

[Brief explanation of drawings]

第１図は第１の実施例の断面図、第２図は第１
図の―線断面図、第３図は第１図の―線
断面図、第４図ａは第１の実施例に使用される超
音波モータの下部ホルダ側断面図、第４図ｂは同
上部ホルダ側断面図、第５図は第２図の実施例の
断面図、第６図は第５図の―線断面図、第７
図は第５図の―線断面図、第８図は第７図の
―線断面図、第９図は超音波モータの回路構
成を示すブロツク図、第１０図は本考案が適用さ
れた第３の実施例の回路構成を示すブロツク図、
第１１図は第３の実施例の処理手順を示すフロー
チヤートである。１……シート、２……フロアパネル、３，３０
……リードレール、４，４０……シート支持部、
５，５０……超音波モータ内蔵部、６……リア側
アース、７……フロト側アース、８……リア側リ
ミツトスイツチ、９……フロント側リミツトスイ
ツチ、１０，２０……超音波モータ、１１，２１
……ステータ、１５……ロータ、６０……Ｖ／Ｆ
変換器、６１……駆動パルス発生器、６２ａ，６
２ｂ……トランス、６４……フイードバツク回路
、６５……Ａ／Ｄ変換器、６６……ＣＰＵ、６７
……Ｄ／Ａ変換器、６８……超音波モータ駆動部
。 Figure 1 is a cross-sectional view of the first embodiment, and Figure 2 is a cross-sectional view of the first embodiment.
Figure 3 is a sectional view taken along the line - in Figure 1, Figure 4 a is a side sectional view of the lower holder of the ultrasonic motor used in the first embodiment, Figure 4 b is the same as above. FIG. 5 is a sectional view of the embodiment shown in FIG. 2, FIG. 6 is a sectional view taken along the line -- in FIG.
The figure is a sectional view taken along the line - - of Fig. 5, Fig. 8 is a sectional view taken along the line - - of Fig. 7, Fig. 9 is a block diagram showing the circuit configuration of an ultrasonic motor, and Fig. 10 is a sectional view taken along the - line of Fig. 7. A block diagram showing the circuit configuration of the third embodiment,
FIG. 11 is a flowchart showing the processing procedure of the third embodiment. 1... Sheet, 2... Floor panel, 3,30
...lead rail, 4,40...seat support section,
5, 50... Ultrasonic motor built-in part, 6... Rear side ground, 7... Front side ground, 8... Rear side limit switch, 9... Front side limit switch, 10, 20... Ultrasonic motor, 11, 21
...Stator, 15...Rotor, 60...V/F
Converter, 61... Drive pulse generator, 62a, 6
2b...Transformer, 64...Feedback circuit, 65...A/D converter, 66...CPU, 67
...D/A converter, 68... Ultrasonic motor drive unit.

Claims

[Scope of claim for utility model registration] A lead rail for a seat slide arranged on the floor panel in the front and back direction of the seat,
An electric seat slide mechanism characterized by comprising: an ultrasonic motor fixed to the lower part of the seat and screwed into the lead rail to directly slide the seat in the front and back direction.