JPS54160955A - Self-tapping device - Google Patents

Self-tapping device

Info

Publication number
JPS54160955A
JPS54160955A JP6958678A JP6958678A JPS54160955A JP S54160955 A JPS54160955 A JP S54160955A JP 6958678 A JP6958678 A JP 6958678A JP 6958678 A JP6958678 A JP 6958678A JP S54160955 A JPS54160955 A JP S54160955A
Authority
JP
Japan
Prior art keywords
hole portion
projection
tapping screw
substrate
diameter
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
Application number
JP6958678A
Other languages
Japanese (ja)
Inventor
Hideki Abe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP6958678A priority Critical patent/JPS54160955A/en
Publication of JPS54160955A publication Critical patent/JPS54160955A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent the ineffectiveness of clamping by means of a tapping screw, by stabilizing clamping torque by erecting a projection of synthetic resin with large hardness on a substrate, by drilling a hole portion with a non-circular section in the base side from an upper end of the projection and by screwing the tapping screw into the hole portion.
CONSTITUTION: A columnar projection 2 of synthetic resin, of the same materials a substrate 1 and which hardness is large, is erected on both sides of the substrate 1, a hole portion 3 with an oval section is provided over the base side of the projection from the center of an upper end surface of the projection 2 and a diameter of a slot 4a of a tapping screw 4 is formed in a shape that it is smaller than a long diameter 3b of the hole portion 3 and larger than a short diameter 3a. Thus, a hole portion 6 of a mounting plate 5, to which the hole portion 6 is drilled, is made of conformed to the hole portion 3, the tapping screw 4 is inserted into the hole portion 3 from the hole portion 6 and the mounting plate 5 is clamped between the head portion 4 and the projection 2. Since the hole portion 3 is non-circular, void portions are formed and engaging width becomes large, screwing-in is smoothered clamping torque is stabilized.
COPYRIGHT: (C)1979,JPO&Japio
JP6958678A 1978-06-08 1978-06-08 Self-tapping device Pending JPS54160955A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6958678A JPS54160955A (en) 1978-06-08 1978-06-08 Self-tapping device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6958678A JPS54160955A (en) 1978-06-08 1978-06-08 Self-tapping device

Publications (1)

Publication Number Publication Date
JPS54160955A true JPS54160955A (en) 1979-12-20

Family

ID=13407068

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6958678A Pending JPS54160955A (en) 1978-06-08 1978-06-08 Self-tapping device

Country Status (1)

Country Link
JP (1) JPS54160955A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59121506U (en) * 1983-02-03 1984-08-16 東亜特殊電機株式会社 Tatsu pin screw pilot hole
JPS62133009U (en) * 1986-02-17 1987-08-21
US10006481B2 (en) 2014-11-26 2018-06-26 Brother Kogyo Kabushiki Kaisha Boss for self-tapping screw

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59121506U (en) * 1983-02-03 1984-08-16 東亜特殊電機株式会社 Tatsu pin screw pilot hole
JPS62133009U (en) * 1986-02-17 1987-08-21
US10006481B2 (en) 2014-11-26 2018-06-26 Brother Kogyo Kabushiki Kaisha Boss for self-tapping screw

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