Assembly for clamping formwork

Abstract

An assembly for clamping formwork boards for forming an elongate slab having a lower base and an upper shaped gutter, includes first and second posts to be disposed on opposite sides of the slab to be formed. There is a formwork board clamping device for mounting to the posts, having jaws, the jaws including a first jaw mounted to the first post for retaining a first formwork board that forms a first side of the slab, and a second jaw mounted to the second post for retaining a second formwork board the forms a second side of the slab and a second side of the gutter. The second jaw has a post mount for a third board holder. The third board holder extends from the second jaw for retaining a third formwork board to be held over the slab to be formed that forms a first side of the gutter.

1 . An assembly for clamping formwork boards for forming an elongate slab having a lower base and an upper shaped gutter, the assembly comprising:
 first and second posts to be disposed on opposite sides of the slab to be formed, and   a formwork board clamping means for mounting to the posts,   
       wherein the clamping means comprises:
 a first jaw for mounting to the first post and for retaining a first formwork board, the first formwork board for forming a first side of the slab, 
 a second jaw for mounting to the second post and for retaining a second formwork board, the second formwork board for forming a second side of the slab and a second side of the gutter, the second jaw having a post mount, and 
 a third board holder for extending from the second jaw and for retaining a third formwork board to be held over the slab to be formed, the third formwork board for forming a first side of the gutter. 
 
     
     
         2 . (canceled) 
     
     
         3 . The assembly of  claim 1 , wherein the first and second posts each have a spiked end for driving into the ground, and wherein the spiked end is comprised of radially extending fins for further stability in the ground and resistance to rotation. 
     
     
         4 . (canceled) 
     
     
         5 . The assembly of  claim 1 , wherein the second jaw comprises an angled bracket having a first web and an outwardly projecting second web extending from a top edge of the first web, wherein the post mount extends upwardly from the first web or the second web. 
     
     
         6 . The assembly of  claim 1 , wherein the posts are spaced from and connected to each other via a spacer which has a variable length. 
     
     
         7 . The assembly of  claim 6 , wherein ends of the spacer are adapted to be lockable to their respective post. 
     
     
         8 . The assembly of  claim 1 , wherein the first and second jaws comprises a releasable clamp formation having a body comprised of a tube defining a bar receiving passage configured for receiving the post, the releasable clamp body having a passage in a sidewall thereof for holding a locking element to engage the post. 
     
     
         9 . The assembly of  claim 8 , wherein the locking element is a threaded screw operable via a rotatable handle. 
     
     
         10 . The assembly of  claim 8 , wherein the locking element is operable via a pivotable handle. 
     
     
         11 . The assembly of  claim 1 , wherein the first jaw is to engage an upper corner edge of the first board with a lower edge of the first board engaging the ground. 
     
     
         12 . The assembly of  claim 1 , wherein the first post comprises two first jaws to respectively engage the upper and lower edges of the first board and clamp the first board therebetween. 
     
     
         13 . (canceled) 
     
     
         14 . The assembly of  claim 5 , wherein a releasable clamp formation is mounted to the first web, the clamp formation comprising a clamp body having a bar receiving passage configured for receiving the second post, the clamp body having a passage in a sidewall thereof for holding a locking element to engage the post 
     
     
         15 . The assembly of  claim 5 , wherein the second web comprises a second threaded passage for holding a second screw operable to penetrate the passage to engage the second board to provide additional clamping force to the second board. 
     
     
         16 . The assembly of  claim 1 , wherein the post mount is comprised of a tube extending upwardly from the second jaw having a third threaded passage for holding a third screw operable to engage and lock an end of the third board holder. 
     
     
         17 . (canceled) 
     
     
         18 . The assembly of  claim 1 , wherein the third board holder is an upside down U-shaped rod having a first leg, a second leg and a bent upper portion therebetween, wherein the first leg is for insertion into the post mount of the second jaw and the second leg is angled outwardly. 
     
     
         19 . The assembly of  claim 18 , wherein the holder further comprises a movable clamping bar extending between the first leg and the second leg, wherein when the clamping bar is disposed adjacent the upper portion, the first and second legs are allowed to move away from each other, and when the clamping bar is moved downwardly, the first and second legs are forced towards each other. 
     
     
         20 . The assembly of  claim 1 , further comprising: bracing for the second post, the bracing comprising one or more distal spikes driven into ground spaced from the second post and connectors extending between and connecting the spike and the second post. 
     
     
         21 . The assembly of  claim 20 , wherein the connector comprises a variable length rod formed by having telescoping sections. 
     
     
         22 - 26 . (canceled)