Abstract A reusable, longitudinally adjustable, readily removable form support member for supporting a concrete construction form in an array of structural members in building construction. In a first embodiment, the form support member comprises telescoping parts having support pins on the opposed ends of the member for engaging openings in adjacent structural members. The pins may be movable in a horizontal plane so as to permit their alignment with the openings where necessary. Means are provided for relatively securing a center part against relative movement along with the telescoping end parts, the end parts being moved in a vertical plane relative to the support pins by respective activating means, so that in an upper position the bottom portions of the end parts and center part contact each other and effect a friction bond which prevents longitudinal movement of the respective parts; and in a lower position, i.e., retracted from a supporting relationship with a concrete form, may be readily removed from the installation. In another embodiment, the form support member includes bracing means to coact, for example, with the lower portion of the top chord of an open-web structural member and a positioning member to position the concrete construction form relative to the upper portion of the open-web structural member.
A form support member for supporting a concrete form relative to beams and joists in a building construction to receive concrete thereover comprising, longitudinally extensible and retractable support means including a central spanning member and telescoping end parts on opposing ends of said spanning member, each of said telescoping end parts including a support pin member extending outwardly therefrom to be received in a supporting relationship in openings in adjacent beams or joists to support a molding form, and means to provide movement of the telescoping end parts in a vertical direction relative to said support pin members to effect a contacting relationship with a molding form and a retracted relationship with said form, said vertical movement of said end parts to a contacting relationship with said form effecting a frictional bond between said spanning member and said telescoping end parts to secure said end parts against longitudinal movement when said support pin members are positioned in said openings, said vertical movement to a retracted relationship permitting easy withdrawal of said pin members from said openings and removal of the form support member.
Claim 2
Dependent Claim
183 words
A form support member for supporting a concrete form relative to beams and joists in a building construction to receive concrete thereover comprising, longitudinally extensible and retractable support means including a central spanning member and telescoping end parts on opposing ends of said spanning member, each of said telescoping end parts including a support pin member extending outwardly therefrom to be received in a supporting relationship in openings in adjacent beams or joists to support a molding form, and means to provide movement of the telescoping end parts in a vertical direction relative to said support pin members to effect a contacting relationship with a molding form and a retracted relationship with said form, said vertical movement of said end parts to a contacting relationship with said form effecting a frictional bond between said spanning member and said telescoping end parts to secure said end parts against longitudinal movement when said support pin members are positioned in said openings, said vertical movement to a retracted relationship permitting easy withdrawal of said pin members from said openings and removal of the form support member.
Claim 3
Dependent Claim
35 words
A form support member according to claim 1 wherein each of said support pin members includes a block portion maintained within at least a recess within an outer end portion of said telescoping end part.
Claim 4
Dependent Claim
33 words
A form support member according to claim 2, wherein said block portion is movable in a horizontal plane within said telescoping end part to facilitate alignment of said pin members in said openings.
Claim 5
Dependent Claim
31 words
A form support member according to claim 1 wherein said support means includes blocking means secured to each of said telescoping parts to set a selected positioning of said molding form.