JPH0432670U

JPH0432670U -

Info

Publication number: JPH0432670U
Application number: JP7380390U
Authority: JP
Priority date: 1990-07-11
Filing date: 1990-07-11
Publication date: 1992-03-17
Anticipated expiration: 2005-07-11
Also published as: JPH0736630Y2

Description

[Brief explanation of the drawing]

第１図は本考案の構成を示す斜視図、第２図イ
は光りセンサー乃至モーター迄の機能ブロツク図
、第３図ロは反射レベルの変化状態を示す図であ
る。１……駆動ローラー、２……従動ローラー、３
……テープ、４……支持ガイド、５……光りセン
サー、５ａ……投光素子、５ｂ……受光素子、６
……反射板、７……装置本体、８……支持ガイド
、９……センサー、９ａ……投光素子、９ｂ……
受光素子、１０……ボビン。 FIG. 1 is a perspective view showing the structure of the present invention, FIG. 2A is a functional block diagram from the light sensor to the motor, and FIG. 3B is a diagram showing changes in the reflection level. 1... Drive roller, 2... Driven roller, 3
...Tape, 4...Support guide, 5...Light sensor, 5a...Light emitter, 5b...Light receiving element, 6
... Reflection plate, 7 ... Device main body, 8 ... Support guide, 9 ... Sensor, 9a ... Light projecting element, 9b ...
Light receiving element, 10... bobbin.

補正平２．１０．１６図面の簡単な説明を次のように補正する。明細書第１４頁第１行及び同頁第２行の「第３
図ロは反射レベルの変化状態を示す図である。」
を、「第２図ロは反射レベルの変化状態を示す図
である。」と補正する。Amendment October 16, 1992 The brief description of the drawings has been amended as follows. "3rd line" on page 14, line 1 and line 2 of the same page of the specification
Figure B is a diagram showing how the reflection level changes. ”
is corrected as "Figure 2 (b) is a diagram showing the state of change in the reflection level."

Claims

[Scope of utility model registration request]

A tape 3 made of rubber or the like is sandwiched and inserted between a driving roller 1 and a driven roller 2 which are rotated by a motor, and the tape 3 is loosened between the driving roller 1 and a support guide 4 attached at an appropriate distance. A light emitting element 5a and a light receiving element 5 are installed at appropriate locations between the drive roller 1 and the support guide 4.
At least one light sensor 5 consisting of the light sensor 5 is provided, and a reflecting plate 6 such as a mirror that constantly reflects the light emitted from the light emitting element 5a constituting the light sensor 5 and projects the light onto the light receiving element 5b is provided at opposite positions. stand upright,
The tape 3 is stretched by the sewing work of the sewing machine,
If the tape 3 blocks the light beam before it changes from the downwardly relaxed state to the straightly tensed state, the light sensor 5
The automatic tape 3 made of rubber or the like is characterized in that the light receiving element 5b senses this, activates a relay, drives the motor that rotates the drive roller 1 for a predetermined period of time, feeds out a predetermined amount of the tape 3, and returns it to its original slack state. Feeding device.