JPH01100912U - - Google Patents
Info
- Publication number
- JPH01100912U JPH01100912U JP19674487U JP19674487U JPH01100912U JP H01100912 U JPH01100912 U JP H01100912U JP 19674487 U JP19674487 U JP 19674487U JP 19674487 U JP19674487 U JP 19674487U JP H01100912 U JPH01100912 U JP H01100912U
- Authority
- JP
- Japan
- Prior art keywords
- protrusion
- screw
- recess
- screw head
- view
- 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.)
- Pending
Links
Landscapes
- Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
Description
第１図〜第１１図は本考案の実施例を示すもの
であつて、第１図、第３図、第５図、第１０図は
各種ねじの平面図、第２図、第４図、第６図Ａ、
第６図Ｂは各種ねじの正面図、第７図はねじによ
る締結作業時の、第１３図の―線に沿う対応
した断面図、第８図はドライバの平面図、第９図
は他の形態での締結作業を示す断面図、第１１図
は第１０図の―線断面図、である。第１
２図はビデオ用テープカセツトの平面図、第１３
図は同テープカセツトの裏面図（但し、リツドは
省略）、である。
なお、図面に示された符号において、１……テ
ープカセツト、２，３２……ねじ、４……上ハー
フ、５……下ハーフ、２０……リツド、３３……
ねじ頭、３４，３４ａ，３４ｂ……突起部、３９
……ドライバ、４４，４５……ねじ孔、６０……
凹部、である。
1 to 11 show embodiments of the present invention, and FIGS. 1, 3, 5, and 10 are plan views of various screws, and FIGS. 2, 4, Figure 6A,
Fig. 6B is a front view of various screws, Fig. 7 is a corresponding sectional view taken along the - line in Fig. 13 during fastening work with screws, Fig. 8 is a plan view of the driver, and Fig. 9 is a view of other screws. FIG. 11 is a sectional view taken along the line -- in FIG. 10. 1st
Figure 2 is a plan view of a video tape cassette, Figure 13.
The figure is a back view of the same tape cassette (however, the lid is omitted). In addition, in the symbols shown in the drawings, 1...tape cassette, 2, 32...screw, 4...upper half, 5...lower half, 20...lid, 33...
Screw head, 34, 34a, 34b... protrusion, 39
...Driver, 44, 45...Screw hole, 60...
It is a recess.
Claims (1)
の突起部及び／又は凹部によつて前記ねじ頭に対
する通常のドライバの嵌合又は回動動作が防止さ
れるように構成したねじ。 A screw having a screw head provided with a protrusion and/or a recess, the protrusion and/or recess preventing a normal screwdriver from engaging or rotating the screw head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19674487U JPH01100912U (en) | 1987-12-25 | 1987-12-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19674487U JPH01100912U (en) | 1987-12-25 | 1987-12-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01100912U true JPH01100912U (en) | 1989-07-06 |
Family
ID=31487340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19674487U Pending JPH01100912U (en) | 1987-12-25 | 1987-12-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01100912U (en) |
-
1987
- 1987-12-25 JP JP19674487U patent/JPH01100912U/ja active Pending
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