Slip form having reinforcement accommodating means

• US 4,084,928 A
• Filed: 11/03/1976
• Issued: 04/18/1978
• Est. Priority Date: 11/03/1976
• Status: Expired due to Term

• Current Assignee: CMI Corporation (Terex Corporation)
• Original Assignee: CMI Corporation (Terex Corporation)
• Inventors: Petersik, Adolph R.
• Primary Examiner(s): Husar, Francis S.
• Assistant Examiner(s): McQuade, John
• Application Number:
  US05/738,349
• Time in Patent Office: 531 Days
• Field of Search: 425/59, 425/63-65, 425/114, 425/122, 425/219, 425/432, 425/456, 404/96-98, 404/100, 404/105, 264/33-35
• US Class Current: 425/64
• CPC Class Codes: B28B 1/084 the vibrating moulds or cores being moved horizontally for making strands of moulded articles
• CPC Class Codes: B28B 23/024 Supporting means
• CPC Class Codes: B28B 23/18 for the production of elongated articles B28B23/06 takes precedence
• CPC Class Codes: E01C 19/506 for kerbs, gutters or similar structures, e.g. raised portions, median barriers

Abstract

An improved barrier forming apparatus and method whereby a barrier is formed continuously over a surface, the barrier having continuous reinforcing rods extending the length of the barrier and having cage reinforced standard supports at predetermined intervals along the length of the barrier. An improved barrier forming assembly is disclosed comprising a concrete forming member having a form cavity extending therethrough; a concrete passing member having a concrete delivery opening for passing concrete or the like to the form cavity; and a positioning assembly comprising a support shaft and a door member pivotally supported at a forward end of the concrete forming member, the barrier being extrudable continuously via the form cavity from a rearward end of the concrete forming member. The door member selectively is positionable to partially seal the form cavity at the forward end of the concrete forming member and has rod clearance channels through which the reinforcing rods pass through the door member into the form cavity when the door member is so positioned to seal the form cavity. The rod clearance channels permit the door member to clearingly pass the reinforcing rods to open the form cavity at the forward end of the concrete forming member to allow the free passage of the barrier forming assembly over the cage reinforced standard supports.

Claims

1. In an apparatus for forming a continuous barrier on a surface, the barrier formed of concrete material or the like in which at least one continuous reinforcing rod is disposed to extend through the length of the barrier and in which reinforcement cages are disposed at predetermined intervals along the barrier, an improved concrete forming assembly comprising:

a concrete forming member having a forward end, an upper portion and a rearward end, the concrete forming member having a form cavity extending therethrough to intersect the rearward end and the forward end, the formed barrier being extruded from the rearward end of the concrete forming member when the concrete forming member is moved along the surface;

a concrete passing member supported on the upper portion of the concrete forming member and having a concrete delivery opening therethrough having a fluid communication with the form cavity, the concrete passing member disposed between the forward end and the rearward end of the concrete forming member; and

a forward end closing assembly attached to the concrete forming member at the forward end thereof and comprising;

a door member pivotally attached to the forward end having a closed position wherein the door member is positioned transverse to, and in partial blocking relationship to, the form cavity, the door member having a rod clearance channel, and the door member having an open position wherein the door member is positioned clear of the form cavity, the clearance channel permitting the door member to clearingly pass the reinforcing rod; and

rod positioning means supported by the door member for positioning and guiding the reinforcing rod through the rod clearance channel when the door member is in the closed position.

2. An improved apparatus for forming a continuous rod reinforced barrier of concrete or the like on a surface, the barrier having cage reinforced standard supports at predetermined intervals, the improved apparatus comprising:

a concrete forming member having a forward end, an upper portion and a rearward end, the concrete forming member having a form cavity extending the length thereof and intersecting the forward and rearward ends;

3. concrete passing means having fluid communication with the form cavity for passing concrete or the like to the form cavity whereby the barrier is extrudable continuously from the rearward end of the concrete forming member in an operational position in which the concrete forming member is caused to move over the surface;

and

a door assembly capable of partially sealing the forward end of the form cavity at the forward end of the concrete forming member, comprising;

at least one support shaft pivotally attached to the concrete forming member at the forward end thereof;

positioning means supported on the support shaft for guiding the rod reinforcement; and

a door member attached to the shaft and positionable in a sealing position and in a clearing position relative to the form cavity, the cage reinforced standard supports passable through the form cavity when the door member is in the clearing position, the door member having a clearance channel permitting the door member to be selectively and clearingly pivoted between the sealing position and the clearing position.

4. In an apparatus for forming a continuous barrier of concrete or the like on a surface with at least one continuous reinforcing rod extending the length thereof, an improved barrier forming apparatus comprising:

forming means for forming the continuous barrier;

the forming means characterized as comprising;

a concrete forming member having a forward end, an upper portion and a rearward end, the concrete forming member having a form cavity extending therethrough and intersecting the forward end and the rearward end; and

a concrete passing member supported on the upper portion of the concrete forming member and having a concrete delivery opening therethrough having fluid communication with the form cavity through which concrete is passable to the form cavity, the formed barrier extrudable continuously from the rearward end of the concrete forming member in an operational position wherein the concrete forming member is moved over the surface; and

positioning means attached to the forming means for positioning the reinforcing rod relative to the transverse profile of the barrier in a rod engage position thereof, and positionable in a non-engage position wherein the positioning means is disengaged with the reinforcing rod, the positioning means characterized as comprising;

a support shaft pivotally supported by the forward end of the concrete forming member and positionable transversely to the form cavity in the rod engage position, and the support shaft is positionable in the non-engage position to be clear of the form cavity;

a pulley rotatingly supported by the shaft and rollingly engageable with the reinforcing rod when the shaft is positioned in the engage position; and

a door member attached to the support shaft having a rod clearance channel, the door member positioned in the engage position of the support shaft in partial sealing relationship to the form cavity, and the door member being positioned in the non-engage position of the shaft in clearing relationship to the form cavity, the rod clearance channel permitting the door member to be moved past the reinforcing rod as the support shaft is caused to be moved between the engage and the non-engage positions.

5. In an apparatus for forming a continuous barrier of concrete or the like on a surface with a plurality of continuous reinforcing rods extending the length thereof, an improved barrier forming apparatus comprising:

forming means for forming the continuous barrier, the forming means characterized as comprising;

a concrete forming member having a forward end, an upper portion and a rearward end, the concrete forming member having a form cavity extending therethrough and intersecting the forward end and the rearward end;

a concrete passing member supported on the upper portion of the concrete forming member and having a concrete delivery opening therethrough having fluid communication with the form cavity through which concrete is passable to the form cavity, the formed barrier extrudable continuously from the rearward end of the concrete forming member in an operational position wherein the concrete forming member is moved over the surface; and

positioning means attached to the forming means for positioning the plurality of reinforcing bars relative to the transverse profile of the barrier in an engage position thereof, and positionable in a non-engage position wherein the positioning means is disengaged relative to the plurality of reinforcing rods, the positioning means characterized as comprising;

a plurality of support shafts pivotally attached to the forward end of the concrete forming member, each shaft positionable transversely to the form cavity in the engage position, and each shaft positionable in the non-engage position to be clear of the form cavity;

a plurality of pulleys rotatingly supported by the shafts and equal in number to the number of reinforcing rods, each pulley rollingly engageable with one of the reinforcing rods when the support shafts are positioned in the engage position; and

a door member attached to the support shafts having a plurality of rod clearance channels, the door member positioned in the engage position of the support shafts in partial sealing relationship to the form cavity, the door member positioned in the non-engage position of the support shafts in clearing relationship to the form cavity, the rod clearance channels permitting the door member to be moved past the reinforcing rods as the support shafts are caused to be moved between the engage and the non-engage positions.