Convertible scaffold

Claim 2

A scaffold brace member including a first tubular horizontal reach with inner and outer ends and a second upstanding reach depending downwardly from the inner end of said first reacH, a rigid arm member, said arm member being removably telescoped into the inner end of said tubular reach, said first reach and arm member being of complementary inside and outside cross-sectional shapes, respectively, whereby said arm member may be telescoped into said disposed generally 90* relative to each other and keyed therein against rotation about its longitudinal axis relative to said first reach, said arm member including a first end projecting outwardly beyond said inner end of said first reach and including a fixed laterally projecting abutment adapted to engage the side of a wall against which said second reach is abutted and through which said arm member extends, said arm member and first reach including coacting means operable to releasably retain said arm member in selected predetermined longitudinally shifted positions in either of the four relatively rotated positions thereof.

Claim 3

The combination of claim 1 wherein said outer end of said first reach includes an upstanding railing support member, said railing support member including an opening formed horizontally therethrough adjacent its lower end, said outer end of said first reach being snugly received through said opening.

Claim 4

A scaffold brace member including a first horizontal reach with inner and outer ends and a second upstanding reach depending downwardly from the inner end of said first reach, a rigid arm member, said arm member and said brace member including coacting portions supporting said arm member from said brace member in position generally paralleling said first reach and for adjustable longitudinal shifting relative to said first reach, said arm member including a first end projecting outwardly beyond said inner end of said first reach and including a laterally projecting abutment adapted to engage the side of a wall against which said second reach is abutted and through which said arm member extends, the outer end portion of said first each including an elongated extension member removably mounted thereon, an inwardly and downwardly inclined brace member having its outer end pivotally secured to the outer end portion of said reach, the inner end of said brace member being adapted to abut against said side of said wall, and an upstanding brace member extending and secured between portions of said brace member and said first reach spaced generally centrally intermediate their opposite ends.

Claim 5

A scaffold brace member including a first horizontal reach with inner and outer ends and a second upstanding reach depending downwardly from the inner end of said first reach, a rigid arm member, said arm member and said brace member including coacting portions supporting said arm member from said brace member in position generally paralleling said first reach and for adjustable longitudinal shifting relative to said first reach, said arm member including a first end projecting outwardly beyond said inner end of said first reach and including a laterally projecting abutment adapted to engage the side of a wall against which said second reach is abutted and through which said arm member extends, the outer end portion of said first each including an elongated extension member removably mounted thereon, an inwardly and downwardly inclined brace member having its outer end pivotally secured to the outer end portion of said reach, the inner end of said brace member being adapted to abut against said side of said wall, and an upstanding brace member extending and secured between portions of said brace member and said first reach spaced generally centrally intermediate their opposite ends.

Claim 6

The combination of claim 3 wherein said coacting portions include a longitudinal guideway defined by said first reach in which said arm member is slidingly received.

Claim 7

The combination of claim 3 wherein said guideway is defined by a hollow tubular portion of said first reach.

Claim 8

The combination of claim 5 wherein said first reach is generally square in inside cross-sectional shape, said arm member being generally square in outside cross-sectional shape.

Claim 9

A scaffold brace member including a first horizontal reach with inner and outer ends and a second upstanding reach depending downwardly from the inner end of said first reach, a rigid arm member, said arm member and said brace member including coacting portions supporting said arm member from said brace member in position generally paralleling said first reach and for adjustable longitudinal shifting relative to said first reach, said arm member including a first end projecting outwardly beyond said inner end of said first reach and including a laterally projecting abutment adapted to engage the side of a wall against which said second reach is abutted and through which said arm member extends, said outer end of said first reach including an upstanding railing support member, said railing support member including an opening formed horizontally therethrough adjacent its lower end, said outer end of said first reach being snugly received through said opening, said lower end of said railing support member being tubular and rectangular in cross-sectional shape, said opening being defined by a pair of aligned openings formeD through one pair of opposing sidewall portions of said support member extending fully between the other pair of opposing sidewall portions of said railing support member.

Claim 10

A scaffold brace member including a first horizontal reach with inner and outer ends and a second upstanding reach depending downwardly from the inner end of said first reach, a rigid arm member, said arm member and said brace member including coacting portions supporting said arm member from said brace member in position generally paralleling said first reach and for adjustable longitudinal shifting relative to said first reach, said arm member including a first end projecting outwardly beyond said inner end of said first reach and including a laterally projecting abutment adapted to engage the side of a wall against which said second reach is abutted and through which said arm member extends, said outer end of said first reach including an upstanding railing support member, said railing support member including an opening formed horizontally therethrough adjacent its lower end, said outer end of said first reach being snugly received through said opening, said lower end of said railing support member being tubular and rectangular in cross-sectional shape, said opening being defined by a pair of aligned openings formeD through one pair of opposing sidewall portions of said support member extending fully between the other pair of opposing sidewall portions of said railing support member.