Document folder

• US 5,692,670 A
• Filed: 10/17/1996
• Issued: 12/02/1997
• Est. Priority Date: 06/24/1996
• Status: Expired due to Fees

• Current Assignee: Chin-Lien Ho
• Original Assignee: Chin-Lien Ho
• Inventors: Ho, Chin-Lien
• Primary Examiner(s): Pascua, Jes F.
• Application Number:
  US08/732,187
• Time in Patent Office: 411 Days
• Field of Search: 24/67.11, 24/67.9, 24/67.3, 229/67.1, 229/67.4
• US Class Current: 229/67.1
• CPC Class Codes: B42F 9/007 with sliding clamping means
• CPC Class Codes: Y10T 24/206 Mounted on support means

Abstract

A document folder includes upper and lower sheets, and a C-shaped clamp. The upper and lower sheets have a common edge. The lower sheet has an opening formed adjacent to the common edge. The opening has opposed first and second edges which are parallel to the common edge. The lower sheet further has a plate member connected fixedly to the internal face of the lower sheet in order to cover the opening. The size of the plate member is approximately equal to that of the upper sheet. The plate member is thicker and harder than the upper sheet. The C-shaped clamp has upper and lower clamping plates, and a curved portion. The lower clamping plate has a tapered projection which abuts against the plate member. The C-shaped clamp is movable between a clamping position, where the curved portion of the C-shaped clamp abuts against the common edge and a releasing position, where the shoulder portion of the projection abuts against the first edge of the opening, thereby preventing the C-shaped clamp from being separated from the upper and lower sheets.

Claims

1. A document folder comprising:

upper and lower sheets having a common edge which interconnects said upper and lower sheets, said lower sheet having an opening formed adjacent to said common edge, said opening having opposed first and second edges which are parallel to said common edge, said first edge of said opening having two ends and being adjacent to said common edge, said second edge of said opening being distal from said common edge, said lower sheet further having two curved slits formed therein, each of said curved slits extending from a respective one of said ends of said first edge of said opening and having a terminating end which is distal from said common edge, said lower sheet further having an internal face and a plate member connected to said internal face of said lower sheet, said plate member having a size which is substantially equal to that of said upper sheet and an edge which extends adjacent to said common edge so as to cover said opening, said plate member being thicker and harder than the upper sheet; and

a C-shaped clamp having upper and lower clamping plates for clamping respectively said upper sheet and said plate member through said opening, and a curved portion which interconnects said upper and lower clamping plates, said lower clamping plate having a distal edge and a tapered projection which projects from said distal edge of said lower clamping plate and which abuts against said plate member, said projection having a shoulder portion facing said curved portion, said C-shaped clamp being movable between a clamping position, where said curved portion abuts against said common edge and a releasing position, where said shoulder portion of said projection abuts against said first edge of said opening, thereby preventing said C-shaped clamp from being separated from said upper and lower sheets.

2. A document folder as claimed in claim 1, wherein said upper clamping plate of said C-shaped clamp has an upper face, and a ramp which inclines downwardly from an intermediate portion of said upper face to a distal edge of said upper clamping plate.

3. A document folder as claimed in claim 1, wherein said upper and lower sheets are rectangular and said lower sheet has a width which is about one-eighth of the width of said upper sheet, said lower sheet having a distal edge which is connected fixedly to said plate member.