JPS6368131U - - Google Patents
Info
- Publication number
- JPS6368131U JPS6368131U JP16048086U JP16048086U JPS6368131U JP S6368131 U JPS6368131 U JP S6368131U JP 16048086 U JP16048086 U JP 16048086U JP 16048086 U JP16048086 U JP 16048086U JP S6368131 U JPS6368131 U JP S6368131U
- Authority
- JP
- Japan
- Prior art keywords
- light
- emitting
- receiving
- tape
- attached
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 238000003708 edge detection Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 1
Description
第1図は本考案のテープ端部検出機構を示す断
面図、第2図は発光部の拡大断面図、第3図は受
光部の拡大断面図、第4図は発光側導光体の平面
図、第5図は同側面図、第6図は外周部を遮光板
で覆つた発光側導光体の断面図、第7図は光屈折
面に反射材を設けた発光側導光体の断面図、第8
図はテープレコーダのテープ端部検出機構の取付
状態を示す平面図、第9図は従来の発光部の断面
図、第10図は受光部の断面図である。
11…発光部、12…受光部、13…基板、1
4…発光素子、15…導光体支持板、16…光屈
折面、17…発光側導光体、18…カセツト、1
9…光屈折面、20…受光側導光体、21…受光
素子。
Fig. 1 is a sectional view showing the tape end detection mechanism of the present invention, Fig. 2 is an enlarged sectional view of the light emitting part, Fig. 3 is an enlarged sectional view of the light receiving part, and Fig. 4 is a plan view of the light guide on the light emitting side. Figure 5 is a side view of the same, Figure 6 is a sectional view of the light-emitting side light guide whose outer periphery is covered with a light shielding plate, and Figure 7 is a cross-sectional view of the light-emitting side light guide with a reflective material provided on the light refraction surface. Sectional view, No. 8
9 is a plan view showing the mounting state of a tape end detection mechanism of a tape recorder, FIG. 9 is a sectional view of a conventional light emitting section, and FIG. 10 is a sectional view of a light receiving section. DESCRIPTION OF SYMBOLS 11... Light emitting part, 12... Light receiving part, 13... Substrate, 1
4... Light emitting element, 15... Light guide support plate, 16... Light refraction surface, 17... Light emitting side light guide, 18... Cassette, 1
9... Light refraction surface, 20... Light receiving side light guide, 21... Light receiving element.
Claims (1)
収容した磁気テープの始端又は終端に設けた透光
窓が前記発光部と受光部の間に位置すると発光部
からの光が受光部に到達して、テープ端部の検出
を行なうようになつている磁気記録再生装置のテ
ープ端部検出機構において、 前記発光部は、装置筐体に固設された基板に取
付けられている発光素子と、該発光素子の光出射
方向に位置させた状態で導光体支持板に取付けら
れていて、先端部に設けた光屈折面で、前記発光
素子からの光を所定の方向に屈折させる発光側導
光体とで構成され、 前記受光部は、磁気テープを挾んで前記発光側
導光体と対向させた状態で導光体支持板に取付け
られていて、先端部に光屈折面を有している受光
側導光体と、前記装置筐体に固設された基板に取
付けられていて、前記受光側導光体からの光を受
光する受光素子とで構成されていることを特徴と
する磁気記録再生装置のテープ端部検出機構。[Claims for Utility Model Registration] The light-emitting unit is equipped with a light-emitting part and a light-receiving part, and if a light-transmitting window provided at the beginning or end of the magnetic tape stored in the tape storage part is located between the light-emitting part and the light-receiving part, the light-emitting part In a tape end detection mechanism of a magnetic recording/reproducing device, in which light from the magnetic recording device reaches a light receiving portion to detect the end of the tape, the light emitting portion is attached to a substrate fixed to the device housing. The attached light emitting element is attached to the light guide support plate while being positioned in the light emitting direction of the light emitting element, and the light refracting surface provided at the tip directs the light from the light emitting element in a predetermined direction. and a light-emitting side light guide that refracts the light in the direction of the light-emitting side. The device is comprised of a light-receiving side light guide having a light refracting surface on the side thereof, and a light-receiving element that is attached to a substrate fixed to the device housing and receives light from the light-receiving side light guide. A tape edge detection mechanism for a magnetic recording/reproducing device, characterized in that:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16048086U JPH0519861Y2 (en) | 1986-10-20 | 1986-10-20 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16048086U JPH0519861Y2 (en) | 1986-10-20 | 1986-10-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6368131U true JPS6368131U (en) | 1988-05-09 |
JPH0519861Y2 JPH0519861Y2 (en) | 1993-05-25 |
Family
ID=31085900
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16048086U Expired - Lifetime JPH0519861Y2 (en) | 1986-10-20 | 1986-10-20 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0519861Y2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05166253A (en) * | 1991-12-11 | 1993-07-02 | Funai Electric Co Ltd | Tape deck |
-
1986
- 1986-10-20 JP JP16048086U patent/JPH0519861Y2/ja not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05166253A (en) * | 1991-12-11 | 1993-07-02 | Funai Electric Co Ltd | Tape deck |
Also Published As
Publication number | Publication date |
---|---|
JPH0519861Y2 (en) | 1993-05-25 |
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