Back plate and file cover for ring binder

• US 20070196162A1
• Filed: 03/15/2005
• Published: 08/23/2007
• Est. Priority Date: 03/16/2004
• Status: Active Grant

• Current Assignee: Max Co Limited
• Original Assignee: Max Co Limited
• Inventors: Nakamura, Katsuya, Hasegawa, Takao, Ando, Masaru
• Granted Patent: US 7,665,924 B2
• Time in Patent Office: Days
• US Class Current: 402/70
• CPC Class Codes: B42F 13/0066 with means for attaching the filing appliance to the cover

Abstract

On the one surface of a back plate suited to a length-and-width size of a ring binder, hooks serving as an engaging means are formed. The back plate is fixed to the spine surface of the file cover. When the ring binder is pressed against the back plate, the hooks are engaged with the ring binder so that the file cover is mounted on a booklet bound with the ring binder.

Claims

1. A back plate for a ring binder, to which a ring binder including a spine segment and a ring segment is detachably mounted, comprising:

an engaging means formed on one surface of the back plate to be engaged with the ring binder.

2. The back plate for a ring binder according to claim 1, wherein the engaging means comprises a flexible hook, and

the hook is engaged with the spine segment of the ring binder so that the ring binder and the back plate are coupled with each other.

3. The back plate for a ring binder according to claim 1, wherein the engaging means comprises a flexible hook, and

the hook is engaged with the ring segment of the ring binder so that the ring binder and the back plate are coupled with each other.

4. The back plate for a ring binder according to claim 1, wherein the engaging means comprises:

a bind tab protruding sideward from a side of the back plate;

a hook formed at a tip of the bind tab; and

an engagement groove to which the hook is engaged when the bind tab is folded toward the back plate, and

wherein the bind tab is folded to be hung over the spine segment of the ring binder, and the hook is fit in the engagement groove so that the ring binder and the back plate are coupled with each other.

5. A file cover for a ring binder, comprising:

a spine surface, wherein the back plate according to claim 1 is mounted on the spine surface.