[ 0031 ] fig1 shows snowboard boots 12 and 14 securely attached to snowboard 10 by fully engaged binding assemblies 18 and 20 which are secured to the board by inserting mounting hardware ( screws ) 22 into threaded mounting holes 16 in the board . the snowboard boots 12 and 14 are shown perpendicular to the long edge of the snowboard 10 , which is the most common stance . aligning the opposing top and bottom pieces of assemblies 18 and 20 , and sliding them together to full engagement make engagement . [ 0032 ] fig2 shows all needed parts and illustrates the direction and orientation of top plate 24 and bottom plate 50 as needed for engaging and locking . fig2 also shows the relationship and means of connection between top plate 24 and snowboard boot 12 as well as the relationship and means of connection of the bottom plate 50 and the snow board 10 . a snowboard boot 12 is shown including a sole 46 and a recessed area 48 in the sole to accommodate the top plate 24 where the top plate 24 will be bolted on with screws or bolts 22 through holes into the snowboard boot &# 39 ; s sole 46 . when the top plate 24 is in position and held in place with fasteners 22 it is not to move and the bottom of the top plate 24 should preferably be generally flush and level with the bottom of the snowboard boot &# 39 ; s sole 46 . the top plate 24 is generally referred to as the male part of the assembly with the base plate 50 being the female or receptor piece . the top plate 24 is generally rectangular in shape with the ends being turned up and angled in toward the center of the part at about 45 degrees creating contact surfaces 38 and 42 on each outside face of upturned ends . other angles can also be used . contact surfaces 38 , 40 , 42 , 44 of the top plate 24 make contact with contact surfaces 54 , 56 , 58 , 60 , respectively , of the bottom plate 50 , making a positive connection between the top plate 24 and bottom plate 50 . the top plate 24 and bottom plate 50 are locked into place by use of a locking bar 32 on top plate 24 and locking mechanism 62 of the bottom plate 50 . the locking bar 32 includes a locking hole 36 and a rounded or beveled surface 34 that actuates the locking pin 66 of locking mechanism 62 located on the bottom plate 50 . the top plate 24 slides into place with contact surfaces 40 and 44 riding on opposing contact surfaces 56 and 60 of the bottom plate 50 . contact surfaces 38 and 42 of the top plate 24 oppose contact surfaces 54 and 58 of the bottom plate 50 only to maintain the connection by not allowing the two plates to separate in an upward direction . the main body of the top plate 24 is designed in such a fashion as to clear fasteners 22 when sliding into the bottom plate 50 . the leading edge 28 of top plate 24 is designed to remove ice and snow as the parts are engaged . the leading edge 28 clears any debris that may be obstructing engagement of plates 24 and 50 by scraping across contact surfaces 54 , 56 , 58 , 60 of bottom plate 50 and removing any foreign matter present . the bottom plate 50 is rectangular in shape and mimics the top plate 24 in that it has turned up end tabs containing on the inward faces of each tab , and contact surfaces 54 , and 60 . the bottom plate 50 is shown with locking mechanism 62 . the locking mechanism includes a locking pin 66 , and a release handle 64 . the means of attachment of the bottom plate 50 to the snowboard 10 by fasteners 22 inserted through apertures 52 in bottom plate 50 into threaded receiving holes 16 on the snowboard 10 is shown . [ 0036 ] fig3 illustrates the assembly 18 of plates 24 and 50 . the top plate 24 is shown sliding into bottom plate 50 with the connection between the two being made by contact surfaces 38 , 40 , 42 , 44 of the top plate 24 against contact surfaces 54 , 56 , 58 , 60 , respectively , of the bottom plate 50 . this makes for a positive connection that will not allow the top plate 24 to disengage from the bottom plate 50 unless it is traveling in the correct direction . in this embodiment , the locking mechanism 62 of bottom plate 50 and the locking bar of top plate 24 have not achieved full locked position because the top plate 24 and bottom plate 50 are not fully engaged or slid in far enough to engage the lock mechanism 62 and locking bar 32 . this view illustrates clearly how the leading edge 28 of top plate 24 will clear snow obstructions on or in the bottom plate 50 as the top plate 24 slides into position . [ 0037 ] fig4 is a top plan view of the bottom plate 50 . the apertures 52 for mounting the bottom plate 50 with attached locking mechanism 62 to the snowboard 10 are shown . a clearer relation between the bottom plate 50 and the locking mechanism 62 is shown . the locking mechanism 62 is preferably integral with the bottom plate 50 . [ 0038 ] fig5 is a top plan view of the top plate 24 . the holes 30 for securing the top plate 24 to the snowboard boot 12 are shown . the holes 30 pass directly through the body 26 and provide a secure means of fastening top plate 24 to a snowboard boot 12 . the location of the locking bar 32 in relationship to the top plate 24 is also shown . [ 0039 ] fig6 is a section view taken from fig3 detailing the connection between top plate 24 and bottom plate 50 . shown here are contact surfaces 38 , 40 , 42 , 44 of top plate 24 completely secured by contact surfaces 54 , 56 , 58 , 60 , respectively , of the bottom plate 50 . [ 0040 ] fig7 is an enlarged perspective view of the locking mechanism 62 of the bottom plate 50 and the locking bar 32 of the top plate 24 in a locked position detailing the relationship and function between these parts . as seen here , locking pin 66 is inserted into locking hole 36 of locking bar 32 to maintain the positive connection between top plate 24 and bottom plate 50 . the locking mechanism 62 contains a locking pin 66 which is inserted into the pin guide hole 72 which allows the tip of the locking pin 66 to slide in and out of the guide hole 72 by a controlled amount . this guide hole 72 is referred to as a blind hole . the locking mechanism 62 includes a biasing means ( e . g . a compression spring ) 68 in order to keep tension on the locking pin 66 which in turn maintains the locking engagement between the locking pin 66 and the locking hole 36 of the locking bar 32 . the amount of travel of the locking pin 66 is governed by the compression of the spring 68 and the locking handle 64 sliding in slot 70 . the locking handle 64 is attached directly to the locking pin 66 through slot 70 located on the outside of the locking mechanism 62 . this keeps the locking pin 66 in position and from coming out of the guide hole 72 because of the force exerted by the compression spring 68 . the spring tension is also what maintains the locked connection between the locking pin 66 and locking hole 36 of the locking bar 32 of the top plate 24 . in order to release the lock , the locking handle 64 is moved rearwardly , which in turn forces the locking pin 66 out of the hole 36 . as the top plate 24 is moved forwardly into the bottom plate 50 , the bevel 34 will ease the tip of the locking pin 66 until it snaps into hole 66 . [ 0041 ] fig8 , and 10 illustrate three alternate embodiments of top plates 100 , 110 and 120 . these embodiments are similar in function as the embodiment of the top plate 24 shown in fig1 - 6 , but vary in appearance and the amount of contact surface available for connection . [ 0042 ] fig1 illustrates an alternate embodiment of the snowboard binding 130 , with a bottom plate 132 with inwardly angled ends 134 , having inwardly angled surfaces 136 . two separate boot engagement portions 138 have angled outer surfaces 140 , and are affixed to a user &# 39 ; s boots . a locking portion 142 is also provided for attachment to a user &# 39 ; s boot . the boot engagement portions 138 are slidably engagable with the angled ends 134 and the locking portion 142 is lockably detachable to a locking mechanism 144 of the bottom plate 132 . the locking mechanism can have the same structure as in the previously described embodiments . [ 0043 ] fig1 illustrates an alternate embodiment of the snowboard binding where the assembly 18 is oriented a 90 degree turn from its original orientation in fig1 . this orientation allows the snowboard boot 12 with attached top plate 24 to slidably engage the bottom plate 50 in front to rear manner ( unlike to side - to - side manner of the mounting of fig1 ), such that the snowboard boot 12 can be supported by an ankle support mechanism or high - back 80 when fully engaged and locked into place . the drawings and the foregoing description are not intended to represent the only form of the invention in regard to the details of this construction and manner of operation . in fact , it will be evident to one skilled in the art that modifications and variations may be made without departing from the spirit and scope of the invention . although specific terms have been employed , they are intended in a generic and descriptive sense only and not for the purpose of limitation .
a snowboard binding for use with a snowboard and boots . the snowboard binding includes a top plate for affixation to a sole of a boot and a bottom plate for affixation to a snowboard . the top plate has two spaced apart and opposed upturned and inwardly angled end walls , and a locking bar with a hole formed therein . the bottom plate has two opposing end tabs which are inwardly angled by a predetermined angle generally mating to that of the end walls of the top plate . the bottom plate has a locking mechanism with a locking pin adapted to be biased into a hole formed in the locking bar when the top plate is fully engaged with the bottom plate .