Cattle stanchion apparatus

Abstract

Cattle stanchion apparatus in which a plurality of fixed and release stanchions define a row of head openings for animals, the release stanchions tending to pivot to open positions. Double latches at the upper extremities of the release stanchions are engageable by couplers carried by a rotatable and axially movable positioner. An operating mechanism is actuable to axially move the positioner and engage the latches of the release stanchions to move them in unison, and an associated rotating mechanism is actuable to rotate the positioner and thereby move the couplers into and out of possible engagement with the latches. The arrangement gives the operator the capability of moving all of the release stanchions to closed positions to lock the animals in the feeding stalls, or allowing the animals individually to actuate the system to lock themselves in, or allowing the animals to enter and leave the stalls as they wish. The latches are manually manipulatable to quickly and safely release downed cattle from individual feeding stalls.

I claim: 
     
       1. In cattle stanchion apparatus including a fixed stanchion; a release stanchion located adjacent and spaced from said fixed stanchion to define a head opening for an animal; mounting means mounting said release stanchion for pivotal movement between an open position in which the upper part of said head opening is enlarged to enable an animal to place its head through said head opening, and a closed position in which said upper part of said opening is narrowed to hold the animal's head in said opening, said release stanchion being supported and arranged to fall into said open position; coupler mounting means, including fixed structure and a generally horizontally extending positioner longitudinally movable between extended and retracted positions, and pivotable about a longitudinal axis; rotating means operative to rotate said positioner about said longitudinal axis between a first position and a second position; and operator means operative to move said positioner between said extended and retracted positions, the improvement comprising: coupler means including a first coupler portion mounted to said positioner and a second coupler portion mounted to said coupler mounting means in longitudinally spaced apart relation; and   a pair of latches mounted to the upper extremity of said release stanchion and adapted for location between said first and second coupler portions, said pair of latches being engageable by both said first and second coupler portions in said first position of said positioner whereby longitudinal movement of said positioner between said retracted and extended positions moves said release stanchion between said closed and open positions, said pair of latches being out of engagement with said first coupler portion in said second position of said positioner whereby said release stanchion is freely movable between said open and closed positions, at least one of said latches being manually actuable to clear said second coupler portion and thereby enable pivotal movement of said release stanchion in a direction oppositely of said open position and past said closed position to a downed animal release position wherein the lower extremity of said release stanchion is spaced farther from said fixed stanchion to define a wider space at the bottom of said head opening.   
     
     
       2. The improvement according to claim 1 wherein said second coupler portion comprises a cylindrical collar affixed to said positioner and projecting substantially uniformly radially outwardly of said positioner. 
     
     
       3. The improvement according to claim 1 wherein said second coupler portion comprises a cylindrical collar affixed to said fixed structure of said cattle stanchion apparatus and longitudinally slidably receiving and supporting said positioner, said collar projecting substantially uniformly radially outwardly of said positioner. 
     
     
       4. The improvement according to claim 1 wherein said release stanchion is laterally offset toward said fixed stanchion adjacent the midportion of said release stanchion to promote movement of said release stanchion toward said open position. 
     
     
       5. The improvement according to claim 4 wherein said fixed stanchion is also laterally offset adjacent the midportion of said release stanchion to enlarge the midportion of said head opening. 
     
     
       6. The improvement according to claim 1 wherein said pair of latches are pivotally mounted to said release stanchion with their free extremities projecting on opposite sides of said release stanchion for engagement in said first position with said first and second coupler portions, respectively, whereby the release stanchion associated with said latches is prevented from moving from said closed position in one direction toward said open position, and in the opposite direction toward said downed animal release position, said positioner being rotatable by said rotating means to said second position to move said first coupler out of said path. 
     
     
       7. The improvement according to claim 6 wherein each of said latches is manually pivotable out of engagement with said first and second coupler portions. 
     
     
       8. The improvement according to claim 6 wherein said first and second coupler portions in said second position are located out of the path of possible engagement by said pair of latches, and said coupler means includes a third coupler portion mounted to said positioner and located in a path for engagement by one of said latches when said positioner is rotated to said second position whereby said release stanchion is movable toward said open position but is constrained by said third coupler portion against movement into said downed animal release position. 
     
     
       9. The improvement according to claim 8 wherein said one of said latches is manually pivotable out of engagement with said third coupler portion. 
     
     
       10. In cattle stanchion apparatus including fixed and release stanchions laterally spaced apart to define a head opening for an animal; a horizontally extending top rail above said release stanchion; mounting means mounting said release stanchion for pivotal movement between an open position in which the upper part of said head opening is enlarged to enable an animal to place its head through said opening, and a closed position in which said upper part of said head opening is narrowed to hold the animal's head in said opening; a generally horizontally extending positioner adjacent and parallel to said top rail, longitudinally movable between extended and retracted positions, and pivotable about a longitudinal axis; rotating means operative to rotate said positioner about said longitudinal axis between a first position and a second position; and operator means operative to move said positioner between said extended and retracted positions, the improvement comprising: a first coupler carried by said positioner and projecting outwardly thereof;   an elongated latch having an inner extremity pivotally mounted to the upper extremity of said release stanchion, the outer extremity of said latch being slidable along said positioner in one direction to enable movement of said release stanchion from said closed position to said open position, said outer extremity of said latch being slidable along said positioner in the opposite direction for engagement with said first coupler in said first position to stop movement of said release stanchion in a direction away from said open position and past said closed position to a downed cattle release position wherein the lower extremity of said release stanchion is spaced farther from said fixed stanchion to define a wider space at the bottom of said head opening, said latch being manually actuable to disengage said first coupler.   
     
     
       11. The improvement according to claim 10 wherein said first coupler is in said first position is located for engagement with said latch, and in said second position is located out of possible engagement with said latch. 
     
     
       12. The improvement according to claim 11 including a second coupler secured to said positioner adjacent said first coupler and located in said second position for engagement with said latch to prevent movement of said release stanchion to said downed cattle release position. 
     
     
       13. The improvement according to claim 12 wherein said first and second couplers are bolt heads. 
     
     
       14. The improvement according to claim 12 wherein said first and second couplers are defined by a coupler collar disposed about and secured to said top rail for engagement with said latch in all rotated positions of said positioner. 
     
     
       15. The improvement according to claim 12 wherein said first and second couplers are defined by a coupler collar disposed about and secured to said positioner. 
     
     
       16. The improvement according to claim 15 wherein said coupler collar projects substantially uniformly outwardly of said positioner for engagement with said latch in all rotated positions of said positioner. .Iadd. 
     
     
       17.  In cattle stanchion apparatus including fixed and release stanchions laterally spaced apart to define a head opening for an animal; fixed structure including mounting means mounting said release stanchion for pivotal movement from an open position in which the upper part of said head opening is enlarged to enable an animal to place its head through said opening, to a closed position in which said upper part of said head opening is narrowed to hold the animal's head in said opening, and beyond said closed position to a downed cattle release position in which said upper part of said opening is further narrowed and wherein the lower part of said opening is enlarged to enable a downed animal to withdraw its head; and a generally horizontally extending positioner pivotable about a longitudinal axis between a first position and a second position; the improvement comprising: coupler means carried by said positioner;   latch means carried by the upper extremity of said release stanchion and having a latch portion movable along said positioner in one direction to enable movement of said release stanchion from said open position to said closed position, said latch portion being movable along said positioner in the opposite direction for engagement with said coupler means in said first position of said positioner to stop movement of said release stanchion from said closed position to said open position; and   downed cattle latch and coupler means operative to engage said release stanchion in said closed position to prevent movement of said release stanchion to said downed cattle release position, said latch and coupler means being manually actuable to enable movement of said release stanchion to said downed cattle release position. .Iaddend. .Iadd.   
     
     
       18.  The improvement according to claim 17 wherein said latch portion includes an inner extremity pivotally mounted to said upper extremity of said release stanchion, and further includes an outer extremity movable along said positioner in said one direction to enable said movement of said release stanchion to said closed position, also movable along said positioner in said opposite direction for said engagement with said coupler means in said first position of said positioner to stop movement of said release stanchion to said open position, and also movable along said positioner in said opposite direction to clear and move past said coupler means in said second position to enable movement of said release stanchion to said open position. .Iaddend. .Iadd.19. In cattle stanchion apparatus including fixed and release stanchions laterally spaced apart to define a head opening for an animal; a horizontally extending top rail above said release stanchion; mounting means mounting said release stanchion for pivotal movement from an open position in which the upper part of said head opening is enlarged to enable an animal to place its head through said opening, to a closed position in which said upper part of said head opening is narrowed to hold the animal's head in said opening, and beyond said closed position to a downed cattle release position in which said upper part of said opening is further narrowed and wherein the lower part of said opening is enlarged to enable a downed animal to withdraw its head; and a generally horizontally extending positioner adjacent to and parallel to said top rail, and pivotable about a longitudinal axis between a first position and a second position; the improvement comprising: coupler means carried by said positioner;   latch means carried by the upper extremity of said release stanchion and having a latch portion movable along said positioner in one direction to enable movement of said release stanchion from said open position to said closed position, said latch portion being movable along said positioner in the opposite direction for engagement with said coupler means in said first position of said positioner to stop movement of said release stanchion from said closed position to said open position; and   downed cattle latch and coupler means having a portion secured to said top rail, said latch and coupler means being adapted to engage said release stanchion in said closed position to prevent movement of said release stanchion to said downed cattle release position, said latch and coupler means being manually actuable to enable movement of said release stanchion to said downed cattle release position. .Iaddend. .Iadd.20. In cattle stanchion apparatus including fixed and release stanchions laterally spaced apart to define a head opening for an animal; fixed structure including mounting means mounting said release stanchion for pivotal movement from an open position in which the upper part of said head opening is enlarged to enable an animal to place its head through said opening, to a closed position in which said upper part of said head opening is narrowed to hold the animal's head in said opening, and beyond said closed position to a downed cattle release position in which said upper part of said opening is further narrowed and wherein the lower part of said opening is enlarged to enable a downed animal to withdraw its head, said release stanchion being supported and arranged to fall into said open position upon any movement of said release stanchion from said closed position toward said open position; and a generally horizontally extending positioner pivotable about a longitudinal axis between a first position and a second position; the improvement comprising:   coupler means carried by said positioner;   latch means carried by the upper extremity of said release stanchion and having a latch portion freely movable along said positioner in one direction to enable movement of said release stanchion from said open position to said closed position, said latch portion being movable along said positioner in the opposied direction for engagement with said coupler means in said first position of said positioner to stop movement of said release stanchion from said closed position to said open position, said coupler means in said second position of said positioner being out of possible engagement with said latch portion whereby said release stanchion is freely movable to said open position; and   downed cattle latch and coupler means having a portion secured to said fixed structure, said latch and coupler means being adapted to engage said release stanchion in said closed position to prevent movement of said release stanchion to said downed cattle release position, said latch and coupler means being manually actuable to enable movement of said release stanchion to said downed cattle release position. .Iaddend. .Iadd.21. In cattle stanchion apparatus including fixed and release stanchions laterally spaced apart to define a head opening for an animal; fixed structure including mounting means mounting said release stanchion for pivotal movement from an open position in which the upper part of said head opening is enlarged to enable an animal to place its head through said opening, to a closed position in which said upper part of said head opening is narrowed to hold the animal's head in said opening, and beyond said closed position to a downed cattle release position in which said upper part of said opening is further narrowed and wherein the lower part of said opening is enlarged to enable a downed animal to withdraw its head, said release stanchion being supported and arranged to fall into said open position upon any movement of said release stanchion from said closed position toward said open position; and a generally horizontally extending positioner longitudinally movable between extended and retracted positions, and pivotable about a longitudinal axis between a first position and a second position; the improvement comprising:   coupler means carried by said positioner;   latch means carried by the upper extremity of said release stanchion and having a latch portion movable along said positioner in one direction to enable movement of said release stanchion from said open position to said closed position, said latch portion being movable along said positioner in the opposite direction for engagement with said coupler means in said first position of said positioner to stop movement of said release stanchion from said closed position to said open position, said latch portion upon engagement with said coupler means in said first position of said positioner being movable with said positioner during movement of said positioner toward said retracted position; and   downed cattle latch and coupler means having a portion secured to one of said positioner and said fixed structure, said latch and coupler means being adapted to engage said release stanchion in said closed position to prevent movement of said release stanchion to said downed cattle release position, said latch and coupler means being manually actuable to enable movement of said release stanchion to said downed cattle release position. .Iaddend.