Knockdown joint construction for furniture frames and other structures

Claim 2

A knockdown joint construction for furniture, frames, and the like, comprising: a. a corner piece having a pair of mounting surfaces; b. an outwardly extending guide means securely mounted on each side surface such that an angle of less than 180* is defined between said guide means; c. a tubular frame member received on each said guide means in abutting relationship to the mounting surface, each of said tubular frame members having retainer engaging means thereon; and d. securing means anchored to said corner piece within the angle defined by said guide means and extending outwardly therefrom, and e. retainer means received on said securing means for engaging said retainer engaging means on said tubular frame members and including retainer tightening means for holding said retainer means, frame members, corner piece and guide means rigidly together.

Claim 3

The knockdown joint construction of claim 1 and wherein said mounting surfaces are generally flat and wherein each guide means is mounted thereon generally normal thereto.

Claim 4

The joint construction according to claim 2 and wherein said guide means is a channel shaped member having an open side which faces said securing means.

Claim 5

The joint construction according to claim 3 and wherein said frame member is a generally rectangularly shaped tube the inside dimensions of which are substantially the same as the outside dimensions of said channel shaped guide means so that close fitting clearance tolerances are maintained between guide means and frame members.

Claim 6

The joint construction of claim 4 and wherein said securing means is a threaded member and is located generally equidistant from each of said guide means.

Claim 7

The joint construction according to claim 5 and wherein said retainer means is a bar member with angled end portions for engaging said retainer engaging means at approximately a right angle to its respective frame member.

Claim 8

The joint construction according to claim 6 and wherein said frame members include means for mounting a surface structure thereon.

Claim 9

The joint construction of claim 7 and wherein said retainer engaging means comprises an opening in each of said frame members which presents an edge surface engaged by said retainer means.

Claim 10

A knockdown joint joint construction for furniture, frames and the like, comprising: a. a coRner piece having a pair of side mounting surfaces; b. an outwardly extending guide means securely mounted on each side surface such that each guide means is generally normal to its mounting surface and such that an angle of less than 180* is defined between said guide means; c. a tubular frame member received on each said guide means in coacting abutting relationship to the mounting surface, each of said tubular frame members having retainer engaging means thereon; d. securing means anchored to aid corner piece within the angle defined by said guide means and extending outwardly therefrom generally equidistant from each said guide means; and e. retainer means received on said securing means for engaging said retainer engaging means on said tubular frame members and including retainer tightening means for holding said retainer means, frame members, corner piece and guide means rigidly together.

Claim 11

A knockdown joint joint construction for furniture, frames and the like, comprising: a. a coRner piece having a pair of side mounting surfaces; b. an outwardly extending guide means securely mounted on each side surface such that each guide means is generally normal to its mounting surface and such that an angle of less than 180* is defined between said guide means; c. a tubular frame member received on each said guide means in coacting abutting relationship to the mounting surface, each of said tubular frame members having retainer engaging means thereon; d. securing means anchored to aid corner piece within the angle defined by said guide means and extending outwardly therefrom generally equidistant from each said guide means; and e. retainer means received on said securing means for engaging said retainer engaging means on said tubular frame members and including retainer tightening means for holding said retainer means, frame members, corner piece and guide means rigidly together.

Claim 12

The joint construction according to claim 9 and wherein said guide means is a channel shaped member having an open side which faces said securing means.

Claim 13

The joint construction according to claim 10 and wherein said frame member is a generally rectangularly shaped tube the inside dimensions of which are substantially the same as the outside dimensions of said channel shaped guide means so that close fitting clearance tolerance are maintained between guide means and frame members.

Claim 14

The joint construction of claim 11 and wherein said securing means is a threaded member and is located generally equidistant from each of said guide means.

Claim 15

The joint construction according to claim 12 and wherein said retainer means is a bar member with angled end portions for engaging said retainer engaging means at approximately a right angle to its respective frame member.

Claim 16

The joint construction according to claim 13 and wherein said frame members include means for mounting a surface structure thereon.

Claim 17

The joint construction of claim 14 and wherein said retainer engaging means comprises an opening in each of said frame members which presents an edge surface engaged by said retainer means.