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In a binding for a snowboard according to the invention, one band having one end mounted on the one-side rising portion of a base plate is connected to the other end of the other band having one end mounted on the other-side rising using a connecting member. A means for mounting the bands onto the r

In a binding for a snowboard according to the invention, one band having one end mounted on the one-side rising portion of a base plate is connected to the other end of the other band having one end mounted on the other-side rising using a connecting member. A means for mounting the bands onto the rising portion is composed of a hole formed in the bands, a plurality of holes each having a hook groove respectively formed in the rising portion, a pin including a projection to be inserted into the hook groove, a lever disposed on the pin for rotating the pin, and an arc-shaped groove formed in a desired depth portion of each of the plurality of holes with a hook groove coaxially with the same hole and in communication with the hook groove.

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1. A binding for a snowboard comprising:a base plate;a first band mounted on a first side of the base plate;a second band mounted on a second side which is opposed to the first side of the base plate in a width direction thereof and connected together with the first band, each band having an end wit

1. A binding for a snowboard comprising:a base plate;a first band mounted on a first side of the base plate;a second band mounted on a second side which is opposed to the first side of the base plate in a width direction thereof and connected together with the first band, each band having an end with a first hole, which is mounted on the base plate;a pair of rising portions formed on the first and the second sides of the base plate for fixing the ends of bands, the pair of rising portions having a plurality of second holes each having a hook groove, the hook grooves being formed lengthwise along an inner surface of respective second holes; anda pin adapted to be inserted into one of the plurality of second holes of the rising portions and the first hole of the band, the pin having a cylindrical structure with a smooth outer surface and a projection to be guided into the hook grooves,wherein at least one of the bands and the rising portions defines a space for receiving and holding the projection of the pin, so that at least one of the bands and the rising portions are pivotally joined together about the pin.2. The binding for a snowboard as set forth in claim 1, wherein the rising portions have a thin-wall part surrounding the second holes with the hook grooves, and the space defined between the band and the thin-wall part accommodates the projection of the pin, the space being communicated with the hook grooves.3. The binding for a snowboard as set forth in claim 1, wherein the pin is prevented from being removed from the second hole with the hook grooves by rotation of the pin after the pin is inserted into one of the second holes with the hook groove and the first hole of the band, so that the projection is accommodated within the space.4. The binding for a snowboard as set forth in claim 1, wherein the hook groove is a channel formed along an inner surface of each of the plurality of second holes.5. The binding for a snowboard as set forth in claim 1, wherein the projection guides the pin along and through the hook groove when the pin is being slid into one of the plurality of second holes.6. The binding for a snowboard as set forth in claim 1, wherein at least one of the bands is locked to the base plate by rotation of the pin when inserted in the hole so that the projection is not aligned with the hook grooves.7. The binding for a snowboard as set forth in claim 1, further comprising a lever attached to the pin for rotating the pin.8. The binding for a snowboard as set forth in claim 2, wherein the thin-wall part has the same thickness as a distance between the projection and a proximal end of the pin.9. The binding for a snowboard as set forth in claim 7, further comprising a holding unit holding a lever of the pin at a desired rotational position.10. A binding for a snowboard comprising:a base plate;a first band mounted on a first side of the base plate;a second band mounted on a second side which is opposed to the first side of the base plate in a width direction thereof and connected together with the first band, each band having an end with a first hole, which is mounted on the base plate;a pair of rising portions formed on the first and the second sides of the base plate for fixing the ends of bands, the pair of rising portions having a plurality of second holes each having a hook groove; anda pin adapted to be inserted into one of the plurality of second holes of the rising portions and the first hole of the band, the pin having a projection to be guided into a hook groove,wherein at least one of the bands and the rising portions defines a groove formed coaxially with the associated hole for receiving and holding the projection of the pin, so that at least one of the bands and the rising portions are pivotally joined together about the pin.11. The binding for a snowboard as set forth in claim 10, wherein the groove is an arc-shaped groove.12. A binding for a snowboard comprising:a base plate;a first band mounted on a first side of the base plate;a second band mounted on a second side which is opposed to the first side of the base plate in a width direction thereof and connected together with the first band, each band having an end with a first hole, which is mounted on the base plate;a pair of rising portions formed on the first and the second sides of the base plate for fixing the ends of bands, the pair of rising portions having a plurality of second holes each having a hook groove;a pin adapted to be inserted into one of the plurality of second holes of the rising portions and the first hole of the band, the pin having a projection to be guided into a hook groove; anda lever attached to the pin for rotating the pin;wherein at least one of the bands and the rising portions defines the space is for receiving and holding the projection of the pin, so that at least one of the bands and the rising portions are pivotally joined together about the pin.13. The binding for a snowboard as set forth in claim 12, further comprising a holding unit holding the lever of the pin at a desired rotational position.14. The binding for a snowboard as set forth in claim 13, wherein the holding unit comprises a projected portion provided on the lever, and a hole formed in the rising portion in such a manner that the projected portion is fitted with the hole.15. The binding for a snowboard as set forth in claim 13, wherein the holding unit comprises a projected surface formed in one of the rising portions in such a manner that the lever moves over the projected surface.16. A binding for a snowboard comprising:a base plate;a first band mounted on a first side of the base plate;a second band mounted on a second side which is opposed to the first side of the base plate in a width direction thereof and connected together with the first band, each band having an end with a first hole, which is mounted on the base plate, the two bands comprising one belt for fastening a leading end portion of a tiptoe portion of a boot and a second belt for fastening an upper portion of the tiptoe portion of the boot; anda pin adapted to be inserted into one of the plurality of second holes of the rising portions and the first hole of the band, the pin having a projection to be guided into a hook groove;wherein at least one of the bands and the rising portions defines the space is for receiving and holding the projection of the pin, so that at least one of the bands and the rising portions are pivotally joined together about the pin.17. The binding for a snowboard as set forth in claim 16, wherein the pin does not have threads.18. The binding for a snowboard as set forth in claim 16, wherein the pin is not a bolt or screw and is not attached using a nut or threads.19. The binding for a snowboard as set forth in claim 16, wherein at least one of the bands is locked to the base plate by rotation of the in pin when inserted in the hole so that the projection is not aligned with the groove.20. A binding for a snowboard comprising:a base plate;a first band mounted on a first side of the base plate;a second band mounted on a second side which is opposed to the first side of the base plate in a width direction thereof and connected together with the first band, each band having an end with a first hole, which is mounted on the base plate;a pair of rising portions formed on the first and the second sides of the base plate for fixing the ends of bands, the pair of rising portions having a plurality of second holes each having a hook groove, the hook grooves being formed lengthwise along an inner surface of respective second holes; anda pin adapted to be inserted into one of the plurality of second holes of the rising portions and each first hole of the band, the pin having a cylindrical structure with a smooth outer surface and a projection to be guided into the hook grooves,wherein the pin is prevented from being removed from one of the plurality of second holes with the hook groove by rotation of the pin after the pin is inserted into one of the second holes with the hook groove and each first hole of each band, so that the projection is received and held in place and the corresponding band and rising portion are pivotally joined together about the pin.