Connecting element of a lamp tube

• US 6,692,180 B2
• Filed: 01/02/2002
• Issued: 02/17/2004
• Est. Priority Date: 01/02/2002
• Status: Expired due to Fees

• Current Assignee: Wen-Chang Wu
• Original Assignee: Wen-Chang Wu
• Inventors: Wu, Wen-Chang
• Primary Examiner(s): Browne, Lynne H.
• Assistant Examiner(s): Garcia, Ernesto
• Application Number:
  US10/034,935
• Publication Number:
  US 20030123927A1
• Time in Patent Office: 776 Days
• Field of Search: 403/291, 403/292, 403/296, 403/297, 403/299, 403/113, 403/318, 403/22, 403/21, 403/DIG.5, 403/166, 362/410, 362/414, 362/431
• US Class Current: 403/292
• CPC Class Codes: F21V 17/04 the fastening being onto or by the light source
• CPC Class Codes: F21V 17/06 the fastening being onto or by the lampholder
• CPC Class Codes: F21V 19/0005 of sources having contact pins, wires or blades, e.g. pinch sealed lamp F21V19/001 takes precedence
• CPC Class Codes: Y10T 403/55 Member ends joined by inserted section
• CPC Class Codes: Y10T 403/556 Section threaded to member

Abstract

A connecting element of a lamp tube comprises a retaining block, a joint, a resisting block and a buffer pad. The distal end of the joint is installed with a threaded section. The middle section of the joint has an embedding portion. Thereby, the resisting block is exactly passed through by the threaded portion of the joint and a lateral side of the embedding portion of the joint is formed with a limiting groove. The resisting block has a position hole at position exactly aligned with the limiting groove. After a pin passes through the positioning hole, a distal end of the pin exactly protrudes into the limiting groove. The buffer pad is positioned between a large stepped end and the resisting block so that a resisting buffering area is formed between the joint and the resisting block. Thereby, a connecting element having a simple structure is formed.

Claims

1. A connecting element of a lamp tube comprising:

the lamp tube comprising a first lamp tube section and a second lamp tube section;

the connecting element comprising a retaining block firmly secured to the first lamp tube section, a joint engaged into the second lamp tube section and exactly locked in the retaining block, and a resisting block and a buffer pad resisting against the joint;

a distal end of the joint is installed with a threaded section;

a middle section of the joint has an embedding portion;

thereby, the resisting block being exactly passed through by the threaded portion of the joint and is then buckled to the embedding portion so as to rotate with the resisting block synchronously; and

a lateral side of the embedding portion of the joint is formed with a limiting groove;

the resisting block has a position hole at position exactly aligned with the limiting groove;

after a pin passes through the position hole, a distal end of the pin exactly protrudes into the limiting groove of the joint for preventing that the joint is separated from the resisting block; and

the buffer pad is positioned between a large stepped end and the resisting block so that a resisting buffering area is formed between the joint and the resisting block;

wherein the buffer pad comprises two symmetrical reeds and a washer between the two reeds;

a middle part of each side of the reed protrudes upwards with a predetermined height;

the large stepped end of the joint and a lateral side of the resisting block;

thereby, a connecting element has a simple structure and capable of being assembled easily is formed.

2. The connecting element of the lamp tube as claimed in claim 1, wherein the limited groove is a long limited groove.