Grip groove hanger

Claim 2

A hanger for wood beams formed from a single sheet metal piece having an integral upright back, right angularly related sides, a horizontal seat adapted for receipt of said beam and a horizontal top flange adapted for engagement with a structural member comprising: a. a blunt faced cutting member formed in the upper portion of each of said sides and bent inwardly substantially parallel to said back for cutting shallow grooves in the sides of the wood beam adjacent its end for attachment of the hanger to the wood beam; and b. portions of said sides below said cutting members being bent inwardly which follow and occupy the grooves made by said cutting members forming retainer portions for retaining the beam.

Claim 3

A hanger as described in claim 1 wherein: a. said retainer portion is an integral continuation of said cutting member and b. the lower end of said retainer portions are formed with a barb to impede withdrawal of the beam in a direction away from said seat and parallel to said back.

Claim 4

A hanger as described in claim 1 comprising: a. said cutting member and retainer portion being closely spaced to said back said back, sides and retainer form a substantially rigid, relatively inflexible channel to prevent spreading of said sides.

Claim 5

A hanger as described in claim 1 comprising: a. a second retainer portion, integral with said sides, positioned in alignment with and below said retainer first named aNd having a greater width than said first named retainer for tightly gripping the beam in a force fit.

Claim 6

A hanger as described in claim 1 comprising a. said cutting member including a plurality of teeth; and b. said retainer portions being elongated sharp-cornered flange members.

Claim 7

A hanger as described in claim 5 comprising: a. the width of said retainer flange is greater than the width of said teeth so that the retainer flange penetrates the wood beam a somewhat greater width than the teeth for tightly gripping the beam in a force fit.

Claim 8

A hanger as described in claim 6 comprising: a. the lower end of said retainer being formed with a barb to prevent withdrawal of the beam from the hanger in a direction opposite to the direction of insertion of the beam onto the hanger.

Claim 9

A hanger as described in claim 1 comprising: a. the sides of said hanger above said cutting member being twisted a full 90* outwardly, thereby forming guide to position the beam in engagement with said cutting member and to make the hanger more rigid.

Claim 10

A hanger as described in claim 1 comprising: a. a pair of prongs extending upwardly from said sides and adapted for insertion into a panel member stiffened by said wood beams; and b. said retainer flanges hold said hanger to said beam for properly guiding said prongs into said panel.

Claim 11

A hanger as described in claim 9 comprising: a. said prongs being bent along a longitudinal axis in an angular configuration to give stiffening strength.

Claim 12

A hanger as described in claim 10 comprising: a. said prongs being formed with a weakened portion in a plane with said horizontal top flange so that any failure of said prongs to penetrate will occur with said prong bending away from said top flange to prevent jamming between said top flange and said panel member.

Claim 13

A hanger as described in claim 11 comprising: a. said hanger being formed with corner embossing at the intersection of said back and top flange to rigidize said parts in a preselected angular relationship; and b. said embossed portion of said back being rearwardly offset to permit parallel insertion of said beam with said hanger back and ease of installation of said hanger on said structural member.

Claim 14

A beam hanger comprising: a. a back member adapted for end face abutment of a wood beam; b. a seat integrally connected to said back member adapted for support of an end of said beam; c. a top flange integrally connected to said back member adapted for connection to a crossbeam; d. side members integrally connected to said back member adapted for resisting lateral movement of said beam; and e. a plurality of cutting and retaining teeth integrally connected to said side members positioned for cutting and removing beam material to form a shallow groove in the sides of said beam parallel to the beam end face said teeth having flat faced surfaces with sharp edges presented to the beam to be cut so as to enter the wood in a ''''chisellike'''' manner gouging a shallow channel and removing kerf as the beam and hanger move in relation to each other.

Claim 15

A beam hanger comprising: a. a back member adapted for end face abutment of a wood beam; b. a seat integrally connected to said back member adapted for support of an end of said beam; c. a top flange integrally connected to said back member adapted for connection to a crossbeam; d. side members integrally connected to said back member adapted for resisting lateral movement of said beam; and e. a plurality of cutting and retaining teeth integrally connected to said side members positioned for cutting and removing beam material to form a shallow groove in the sides of said beam parallel to the beam end face said teeth having flat faced surfaces with sharp edges presented to the beam to be cut so as to enter the wood in a ''''chisellike'''' manner gouging a shallow channel and removing kerf as the beam and hanger move in relation to each other.

Claim 16

A hanger as described in claim 13 comprising: a. said teeth near said seat being relatively longer than the teeth near said top flange with said first named teeth entering further into the sides of said beam.