Anchor device

• US 6,821,069 B2
• Filed: 11/06/2002
• Issued: 11/23/2004
• Est. Priority Date: 11/07/2001
• Status: Expired due to Fees

• Current Assignee: Wakai & Co. Ltd.
• Original Assignee: Wakai & Co. Ltd.
• Inventors: Ikuta, Kazuichi
• Primary Examiner(s): Miller, William L.
• Application Number:
  US10/288,381
• Publication Number:
  US 20030118420A1
• Time in Patent Office: 748 Days
• Field of Search: 411/340, 411/344-346, 411/546, 411/312, 411/902, 411/903, 411/913, 411/999, 411/508-510
• US Class Current: 411/344
• CPC Class Codes: F16B 13/0808 by a toggle-mechanism
• CPC Class Codes: F16B 5/02 by means of fastening members using screw-thread F16B5/0004 takes precedence; construction of screw-threaded connections F16B25/00 - F16B39/00

Abstract

An anchor device is provided which makes it possible to fasten various members or instruments to a wall to the back of which hands cannot reach with a bolt. The anchor device includes an inserting member molded of a synthetic resin, a nut mounted to the tip of the inserting member, and a tubular seating member mounted on the inserting member. The inserting member has a bag-like portion integrally formed at the tip of an elongated trough-like trunk portion having a semicircular section through a bendable portion. The nut, which has a semicircular section, is received in the bag-like portion. By inserting the anchor device into a hole formed in a wall member, it fixes an article to be fastened by use of a bolt.

Claims

1. An anchor device comprising:

an inserting member including a trunk shaped substantially as a gutter, and having a longitudinal axis;

a bendable portion;

an end member connected to one end of said trunk through said bendable portion,

wherein said end member includes a hole having one end open and another end closed, and having a central axis,

wherein said end member is held in a first position such that said central axis forms a predetermined angle relative to said longitudinal axis when said inserting member is not subjected to any external force, and

wherein said end member is pivotable, relative to said trunk, from the first position to a second position such that the central axis is substantially parallel to the longitudinal axis by elastically deforming said bendable portion;

a plate-shaped nut having a thickness,

wherein said nut includes a threaded hole extending through said nut in a direction of the thickness thereof, and

wherein said nut is adapted to be inserted in said hole formed in said end member with said threaded hole located outside of said hole formed in said end member;

a seating member disposed on said trunk; and

a retaining member operable to retain said seating member on said trunk.

2. An anchor device as claimed in claim 1,

wherein said retaining member comprises a plurality of serrations formed on said trunk continuously in the longitudinal direction on both edges of an outer periphery of said trunk, and a protrusion formed on an inner periphery of said seating member so as to contact with both edges of said trunk.

3. An anchor device as claimed in claim 1,

wherein near a bottom of the outer periphery of said trunk, a thin deflecting portion is provided so as to extend in the longitudinal direction.

4. An anchor device as claimed in claim 3,

wherein said nut has a substantially semicircular section,

wherein said hole of said end member has a semicircular shape, and

wherein said end member has a side face facing said bendable portion, said side face being a flat surface.

5. An anchor device as claimed in claim 1,

wherein said nut has a substantially semicircular section,

wherein said hole of said end member has a semicircular shape, and

wherein said end member has a side face facing said bendable portion, said side face being a flat surface.

6. An anchor device as claimed in claim 1, wherein said seating member comprises a cylindrical portion and a thin disk portion provided at one end thereof, said disk portion having a long side elongated in a direction perpendicular to a direction in which said nut protrudes.

7. An anchor device as claimed in claim 1, wherein said seating member comprises a cylindrical portion and a thin disk portion provided at one end thereof, said disk portion having a long side elongated in a direction perpendicular to a direction in which said nut protrudes and is bent in the direction in which said nut protrudes.

8. An anchor device as claimed in claim 1, comprising only one inserting member, wherein said inserting member comprises only one trunk.