System for assembling welding apparatus

• US 7,375,305 B2
• Filed: 10/31/2002
• Issued: 05/20/2008
• Est. Priority Date: 10/31/2002
• Status: Expired due to Fees

• Current Assignee: Illinois Tool Works Inc.
• Original Assignee: Illinois Tool Works Inc.
• Inventors: Cigelske, James J. Jr., Achtner, Richard M.
• Primary Examiner(s): Kerns; Kevin P
• Application Number:
  US10/065,571
• Publication Number:
  US 20040084428A1
• Time in Patent Office: 2,028 Days
• Field of Search: 219/130.1, 219/136, 174/50, 174/53, 174/61, 174/65.R, 361/679, 361/726, 361/732
• US Class Current: 219/130.1
• CPC Class Codes: B23K 9/32 Accessories earthing connections H01R

Abstract

A welding apparatus having a system to facilitate its assembly. The apparatus is assembled by affixing a pair of molded end panels to a molded base and each of the end panels has a specially constructed receptacle area that is adapted to receive an end of the base. Each end of the base has a pair of snaps that extend outwardly and which engage with a correspondingly located pair of ramps formed in the receptacle area of each of the end panels. Thus the assembly is easily carried out by simply inserting the base ends into the receptacle areas where the snaps ride up the ramps and engage the vertical walls on the inner side of those ramps to securely affix the end panels to the base. Preferably the snaps are U-shaped in configuration with the distal end of the snaps being the closed ends of the U-shaped snaps.

Claims

1. A method of assembling an end panel to the base of a welding apparatus, the method comprising the steps of:

providing a molded base with at least one snap having a distal end and an elongated opening formed therein, the at least one snap extending outwardly therefrom, providing a molded plastic panel having at least one inclined ramp formed thereon leading to a vertical rear wall and having a recess formed proximate the rear wall,

inserting the molded base into the molded plastic panel to cause the snap to ride upwardly along the inclined ramp and enter into the recess to lock the distal end of the at least one snap against the rear wall of the at least one ramp to retain the base to the end panel.

2. The method as defined in claim 1 wherein the step of providing a molded base with at least one snap comprises providing a molded base with a pair of U-shaped snaps.

3. The method as defined in claim 1 wherein the molded plastic panel has an access opening proximate the rear wall of the ramp and the method further comprises the step of inserting a tool through the access opening to move the distal end of the snap vertically upwardly to unlock the snap from the rear wall of the ramp.

4. The method as defined in claim 1 wherein the step of providing at least one snap comprises providing a pair of snaps and the step of providing at least one ramp comprised providing a pair of ramps.

5. The method as defined in claim 1 wherein the step of inserting the molded base further comprises deflecting the snap along the inclined ramp during insertion.