JPH0355872U

JPH0355872U -

Info

Publication number: JPH0355872U
Application number: JP11746689U
Authority: JP
Priority date: 1989-10-04
Filing date: 1989-10-04
Publication date: 1991-05-29

Description

[Brief explanation of drawings]

第１図は、この考案の第１実施例を示した側面
断面図。第２図は、この考案の第２実施例を示し
た部分断面図。第３図は、この考案の第３実施例
を示した部分断面図。第４図は、この考案の第４
実施例を示した側面断面図。１……緯糸貯留ドラム、３……緯糸検出器、５
，６……入射光規制部材、３１……投光器、３３
……受光器、５１，５３，６１……ピンホール。 FIG. 1 is a side sectional view showing a first embodiment of this invention. FIG. 2 is a partial sectional view showing a second embodiment of this invention. FIG. 3 is a partial sectional view showing a third embodiment of this invention. Figure 4 shows the fourth part of this invention.
FIG. 2 is a side sectional view showing an example. 1... Weft storage drum, 3... Weft detector, 5
, 6... Incident light regulating member, 31... Floodlight, 33
...Receiver, 51, 53, 61...Pinhole.

Claims

[Scope of Claim for Utility Model Registration] (1) A photoelectric reflection type weft yarn detector for a drum-type weft length measuring and storage device having a light emitter and a light receiver, which detects the incident angle of the detected light on the light receiving surface side of the light receiver. A weft detector for a loom, characterized in that it is provided with a pinhole that limits incident light and is set at the same angle as the loom. (2) Claim No. 1, characterized in that the pinhole is configured to converge toward the tip.
A weft detector for a loom as described in (1). (3) The incident light regulating portion defining and forming the pinhole is formed of a cylindrical body, and is formed as a flange-like member protruding from the inner wall surface of the cylindrical body toward the center. A weft detector for a loom according to claim (1) or (2).