A ratchet buckle, which is configured to connect a first strap and a second strap, includes a controlling device, an operating device connected to the first strap, a reel passing through the controlling device and the operating device along an axial line, the second strap wound around the reel, at l
A ratchet buckle, which is configured to connect a first strap and a second strap, includes a controlling device, an operating device connected to the first strap, a reel passing through the controlling device and the operating device along an axial line, the second strap wound around the reel, at least one ratchet set mounted on the reel, the reel being not rotated relative to the ratchet set, and a pawl device. When the user wants to unwind the second strap from the reel, the user moves and rotates the controlling device smoothly with only one hand thereof; therefore, it's very convenient for the user to operate. The special structure making the ratchet set unidirectionally rotatable, and it doesn't need any further structure, so that it is lighter and has lower cost.
대표청구항▼
1. A ratchet buckle, which is configured to connect a first strap and a second strap, comprising: a controlling device;an operating device connected to the first strap;a reel passing through the controlling device and the operating device along an axial line, the second strap wound around the reel;a
1. A ratchet buckle, which is configured to connect a first strap and a second strap, comprising: a controlling device;an operating device connected to the first strap;a reel passing through the controlling device and the operating device along an axial line, the second strap wound around the reel;a pawl device having a first through hole and at least one first pawl member, the first through hole formed through the operating device, along the axial line, the reel passing through the through hole, the first pawl member defined on an inner wall of the first through hole; andat least one ratchet set mounted on the reel, the reel being not rotated relative to the ratchet set, at least a portion of the ratchet set received in the first through hole, the ratchet set movable in the first through hole via an outer force, between a first position under which the first pawl member is engaged with the ratchet set so that the ratchet set is rotatable in one direction, and a second position under which the first pawl member is disengaged from the ratchet set so that the ratchet set is rotatable in the one direction or another opposite direction. 2. The ratchet buckle as claimed in claim 1, wherein a strain of the second strap drives the reel at the first position. 3. The ratchet buckle as claimed in claim 1, wherein the operating device has two wall members and a rod member; the two wall members are spaced from each other; the rod member is connected between two ends of the two wall members; the rod member is connected to the first strap; there are two ratchet sets; there are two first through holes and two first pawl members; each first through hole is formed on each corresponding wall member; each first through hole has a first through portion and a first receiving portion; a diameter of the first through portion is longer than that of the reel; a diameter of the first receiving portion is longer than that of the first through portion; the first receiving portion is configured to receive the ratchet set; each first pawl member has a first engaging portion; the first engaging portion corresponds to the engaging faces. 4. The ratchet buckle as claimed in claim 3, wherein the controlling device has two connectors and a handle; the two connectors is connected to the reel; the handle is connected between the two connectors; the pawl device has two second through holes and two second pawl members; each second through hole is formed on each corresponding connector therethrough, along the axial line; the reel passes through the two second through holes; each second pawl member is defined on an inner wall of each corresponding second through hole; another portion of the ratchet set received in the first through hole; each second pawl member has a second engaging portion corresponding to the engaging faces; the engaging portions rotate the ratchet set when the operating device is rotated clockwise, and disengage from the ratchet set when the operating device is rotated counterclockwise. 5. The ratchet buckle as claimed in claim 4, wherein the ratchet set has a plurality of disengaging faces and a plurality of engaging faces; the disengaging faces are extended from a periphery of the ratchet set; each engaging face is adjacent to each corresponding disengaging face; each engaging face is configured to engaged with one engaging portion. 6. The ratchet buckle as claimed in claim 4, wherein the controlling device has two extending portions; each extending portion is defined at one end of each corresponding connector; the operating device has two extruded portions; each extruded portion is formed at each corresponding wall member; each extruded portion abuts against each corresponding extending portion so that the controlling device moves the reel in the first through hole and moves the ratchet set in the first through hole to a second position, so as to disengage each first pawl member from the ratchet set; as a result, the reel at the second position is freely rotated clockwise or counterclockwise. 7. The ratchet buckle as claimed in claim 6, wherein the controlling device has two first abutting faces formed at the connectors; the operating device has two catch members; each catch member is formed at each corresponding wall member and is back on to each corresponding extruded portion; each catch member is spaced from each corresponding extruded portion; when the controlling device is rotated counterclockwise until the first abutting face abuts against each corresponding catch member, the controlling device moves the reel in each first through hole, so as to disengage each first pawl member and each second pawl member from the ratchet set at the second position; as a result, the reel is freely rotated clockwise or counterclockwise. 8. The ratchet buckle as claimed in claim 7, wherein the controlling device has two second abutting faces formed at the connectors; each second abutting faces is back on to the first abutting face; each catch member has an inclined face opposite to each corresponding extruded portion; the inclined face is inclined from a top end thereof to a bottom end thereof; the bottom end is closer to each corresponding extruded portion than the top end of the inclined face; when the controlling device is rotated counterclockwise, so as to have the inclined face abut against the second abutting face of each corresponding extending rod; then, the controlling device moves the reel toward each first pawl member in each corresponding first through hole, with the abutting relation between the inclined face and the second abutting face of each corresponding extending rod, until the ratchet buckle is completely folded up; as a result, the ratchet set is engaged with each first pawl member. 9. The ratchet buckle as claimed in claim 3, wherein the controlling device has two connectors, a handle, at least one pawl plate and at least one elastic member; the two connectors is connected to the reel; the handle is connected between the two connectors; the pawl plate is movably assembled between the two connectors; the elastic member is assembled on the pawl plate and the two connectors; a recovery force of the elastic member has the pawl plate engage with the ratchet set; the pawl plate rotates the ratchet set when the operating device is rotated clockwise, and disengage from the ratchet set via the elastic member when the operating device is rotated counterclockwise. 10. The ratchet buckle as claimed in claim 9, wherein the controlling device has two extending portions; each extending portion is defined at one end of each corresponding connector; the operating device has two extruded portions; each extruded portion is formed at each corresponding wall member; each extruded portion abuts against each corresponding extending portion so that the controlling device moves the reel in the first through hole and moves the ratchet set in the first through hole to a second position, so as to disengage each first pawl member from the ratchet set; as a result, the reel at the second position is freely rotated clockwise or counterclockwise. 11. The ratchet buckle as claimed in claim 10, wherein the controlling device has two first abutting faces formed at the connectors; the operating device has two catch members; each catch member is formed at each corresponding wall member and is back on to each corresponding extruded portion; each catch member is spaced from each corresponding extruded portion; when the controlling device is rotated counterclockwise until the first abutting face abuts against each corresponding catch member, the controlling device moves the reel in each first through hole, so as to disengage each first pawl member and each second pawl member from the ratchet set at the second position; as a result, the reel is freely rotated clockwise or counterclockwise. 12. The ratchet buckle as claimed in claim 11, wherein the controlling device has two second abutting faces formed at the connectors; each second abutting faces is back on to the first abutting face; each catch member has an inclined face opposite to each corresponding extruded portion; the inclined face is inclined from a top end thereof to a bottom end thereof; the bottom end is closer to each corresponding extruded portion than the top end of the inclined face; when the controlling device is rotated counterclockwise, so as to have the inclined face abut against the second abutting face of each corresponding extending rod; then, the controlling device moves the reel toward each first pawl member in each corresponding first through hole, with the abutting relation between the inclined face and the second abutting face of each corresponding extending rod, until the ratchet buckle is completely folded up; as a result, the ratchet set is engaged with each first pawl member. 13. The ratchet buckle as claimed in claim 1, wherein the ratchet buckle further comprises a roll set; the roll set has a roll wheel and two receiving plates; the roll wheel is fixed to the reel and is configured to rotate the reel; the roll wheel is set at an outer side of the controlling device; the roll wheel is rotated so as to have the reel rotate and wind the second strap therearound.
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이 특허에 인용된 특허 (3)
Gopal, Prasanna; Davies, Andrew Alexander, Buckle.
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