TW200728610A - A mother-son screw - Google Patents

A mother-son screw

Info

Publication number
TW200728610A
TW200728610A TW095103245A TW95103245A TW200728610A TW 200728610 A TW200728610 A TW 200728610A TW 095103245 A TW095103245 A TW 095103245A TW 95103245 A TW95103245 A TW 95103245A TW 200728610 A TW200728610 A TW 200728610A
Authority
TW
Taiwan
Prior art keywords
screw
mother
son
son screw
reinforce
Prior art date
Application number
TW095103245A
Other languages
Chinese (zh)
Other versions
TWI266003B (en
Inventor
bang-qing Huang
Original Assignee
Joker Ind Co 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 Joker Ind Co Ltd filed Critical Joker Ind Co Ltd
Priority to TW95103245A priority Critical patent/TWI266003B/en
Application granted granted Critical
Publication of TWI266003B publication Critical patent/TWI266003B/en
Publication of TW200728610A publication Critical patent/TW200728610A/en

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  • Connection Of Plates (AREA)

Abstract

The invention is about a mother-son screw. A son screw attached to the mother screw can reinforce the firm fastening effect. This screw comprises a mother screw and at least one son screw. A functional portion on the mother screw has at least one convex edge. Each convex edge has more than one slot along the longitudinal direction relatively for accommodating the son screw. The connection portion on top of the son screw will be fastened to the surface of the mother screw that has an inclined surface on tip of it. There is at least one slot on the side of the mother screw. When the mother-son screw penetrates the sheet metal, it will be confined randomly between any upper and lower convex edges and the son screw will have a tiny lateral bent. A hardened son screw, through heat treatment, will let the mother-son screw penetrate the sheet metal to reinforce the fastening. Thus a firm fastening effect will be assured.
TW95103245A 2006-01-27 2006-01-27 A mother-son screw TWI266003B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW95103245A TWI266003B (en) 2006-01-27 2006-01-27 A mother-son screw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW95103245A TWI266003B (en) 2006-01-27 2006-01-27 A mother-son screw

Publications (2)

Publication Number Publication Date
TWI266003B TWI266003B (en) 2006-11-11
TW200728610A true TW200728610A (en) 2007-08-01

Family

ID=38191462

Family Applications (1)

Application Number Title Priority Date Filing Date
TW95103245A TWI266003B (en) 2006-01-27 2006-01-27 A mother-son screw

Country Status (1)

Country Link
TW (1) TWI266003B (en)

Also Published As

Publication number Publication date
TWI266003B (en) 2006-11-11

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees