Pin terminal

Patent metadata

Field	Value
Publication number	US-9281601-B2
Application number	US-201214354290-A
Country	US
Kind code	B2
Filing date	Mar 1, 2012
Priority date	Oct 25, 2011
Publication date	Mar 8, 2016
Grant date	Mar 8, 2016

Abstract

A pin terminal (PT) is such that a cap ( 30 ) made of synthetic resin is attached to a tip part of a terminal main body ( 10 ) made of metal and in the form of a round pin. An attachment hole ( 21 ) including an uninterrupted and continuous peripheral wall over the entire circumference is perforated on the tip surface of the terminal main body ( 10 ), whereas a press-fitting portion ( 35 ) to be press-fitted into the attachment hole ( 21 ) is formed to project on the rear surface of the cap ( 30 ). An internal thread ( 23 ) is formed on the peripheral surface of the attachment hole ( 21 ), and a ridge portion ( 24 ) of this internal thread ( 23 ) constitutes a biting protrusion. The tip of the pin terminal (PT) is structured to form a smooth and tapered guiding portion ( 40 ).

First claim

The invention claimed:

1. A pin terminal, comprising:
a terminal main body having a terminal connecting portion extending in forward and backward directions, a screw hole formed in a front end of the terminal connecting portion and having an array of internal threads extending in an axial direction, and defining a helical ridge of uniform diameter; and
a cap formed form synthetic resin having a disk portion and a press-fitting portion projecting rearward from the disk portion, the press-fitting portion being press-fit into the screw hole of the terminal main body, wherein
the at least one ridge portion bites into the press-fitting portion to define a helical engagement over an entire length of the press-fitting portion.

2. The pin terminal of claim 1 , wherein a longitudinal groove for air vent is formed over an entire length on an outer periphery of the press-fitting portion of the cap.

3. The pin terminal of claim 1 , wherein the terminal body further comprises a flange rearward of the terminal connecting portion and a wire connecting portion rearward of the flange.

4. The pin terminal of claim 3 , wherein a center hole is formed in a rear surface of the wire connecting portion, and at least one drainage hole is formed in the center hole.

5. The pin terminal of claim 1 , wherein an inclined guide surface is formed over an entire circumference of the front end of the terminal connecting portion for guiding the cap into the screw hole.

6. The pin terminal of claim 1 , wherein the terminal connecting portion has an outer peripheral surface, and a rearwardly inclined tapered surface is formed on the outer peripheral surface at the front end.

7. The pin terminal of claim 1 , wherein the cap is formed with a truncated conical portion forward of the disk portion, and a diameter of the truncated conical portion increases between a leading end and the disk portion.

8. The pin terminal of claim 1 , wherein a diameter of the press-fitting portion is smaller than a diameter of the disk portion.

9. The pin terminal of claim 1 , wherein the internal threads extend between a proximal end at the front end of the terminal connecting portion and a distal end spaced rearwardly from the proximal end, and
a length of the press-fitting portion is equal to a length of the internal threads between the proximal end and the distal end.

Assignees

• Okayasu Yasushi
• IZUKURA Satoru
• Sumitomo Wiring Systems

Inventors

• Okayasu Yasushi
• IZUKURA Satoru

Classifications

• H01R13/629

  Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure {electrical locking indicators, manufacturing tolerances (separate tools or apparatus H01R43/26)} · CPC title

• H01R13/44 Primary

  Means for preventing access to live contacts {(making use of a switch actuated by engagement of counterpart H01R13/7036)} · CPC title

• H01R13/04

  Pins or blades for co-operation with sockets · CPC title

• H01R2101/00

  One pole · CPC title