JPH0184083U

JPH0184083U -

Info

Publication number: JPH0184083U
Application number: JP1987179890U
Authority: JP
Priority date: 1987-11-26
Filing date: 1987-11-26
Publication date: 1989-06-05

Description

[Brief explanation of the drawing]

第１図は、この考案にかかる物体検出器の第１
実施例の概略外観をあらわす斜視図、第２図ａ，
ｂは、この考案の第２実施例をあらわし、図ａは
概略外観をあらわす斜視図、図ｂは、通路まわり
を中心とする側断面図、第３〜６図は、この考案
の第３実施例をあらわし、第３図は、概略外観を
あらわす斜視図、第４図は、分解斜視図、第５図
は平面図、第６図は、通路まわりを中心とする側
断面図、第７図は、この考案の第４実施例の概略
外観をあらわす斜視図、第８図ａ，ｂは、この考
案の第５実施例をあらわし、図ａは概略外観をあ
らわす斜視図、図ｂは、通路まわりを中心とする
側断面図、第９図は、従来のパチンコ玉検出器の
概略外観をあらわす斜視図である。１……通路、１′……上側通路、１″……下側
通路、１ａ，１′ａ，１″ａ……内周面、２……
投光用窓、３……受光用窓、４……発光素子（投
光手段）、５……受光素子（受光手段）。 Figure 1 shows the first object detector according to this invention.
A perspective view showing the general appearance of the embodiment, FIG. 2a,
Figure b shows the second embodiment of this invention, Figure a is a perspective view showing the general appearance, Figure b is a side sectional view centered around the passage, and Figures 3 to 6 are the third embodiment of this invention. Figure 3 is a perspective view showing the general appearance, Figure 4 is an exploded perspective view, Figure 5 is a plan view, Figure 6 is a side sectional view centered around the passage, and Figure 7 is an example. 8 is a perspective view showing the general appearance of the fourth embodiment of this invention, FIGS. 8a and 8b show the fifth embodiment of this invention, FIG. FIG. 9 is a side sectional view centered around the circumference, and is a perspective view showing the general appearance of a conventional pachinko ball detector. 1... Passage, 1'... Upper passage, 1''... Lower passage, 1a, 1'a, 1''a... Inner peripheral surface, 2...
Light projecting window, 3... Light receiving window, 4... Light emitting element (light projecting means), 5... Light receiving element (light receiving means).

Claims

[Claims for Utility Model Registration] (1) A passage through which an object passes is provided, and a light projecting means and a light receiving means are provided on the sides of this passage, and the light projected onto the passage by the light projecting means is is received by the light receiving means, and the object is detected by a change in the amount of received light due to an object blocking the light, wherein the light receiving means detects a disturbance entering from the mouth of the passage. An object detector characterized by being installed in a position that is not easily affected by light. (2) The object detector according to claim 1 of the utility model registration claim, in which the passage narrows at the entrance side and a light emitting/receiving means is provided after passing through the narrowed part. . (3) Utility model registration claims Paragraph 1 or 2, in which a discharging means for discharging the electric charge carried by an object is provided between the entrance of the passage and the position where the light emitting/receiving means is provided. Object detector described in section. (4) At least a section of the passage has a wall made of a material that transmits light in the infrared region but blocks light in the visible region, and behind this wall is formed a wall made of a material that transmits light in the infrared region but blocks light in the visible region. A light projecting means and a light receiving means capable of projecting and receiving light are provided, the light projecting means projects light in an infrared region through the wall onto the passage, and the light receiving means receives this light through the wall. An object detector according to any one of claims 1 to 3 of the utility model registration claims.