THE LEATHER BELT BUCKLE

Abstract: The present invention comprises the main plate and the latch which has a radius which is increased in the clockwise direction on one surface of the cylindrical rotation section of the belt stopping member which is engaged so as to be separated by a distance larger than the thickness of the belt. Therefore, the belt can be stably stopped without forming a separate catching piece and a latchet in the belt, and the thickness of the buckle can be reduced.

Description: THE LEATHER BELT BUCKLE TECHNICAL FIELD The present invention relates to a detachable buckle, and more particularly to a buckle which can easily engage a belt with the buckle when the belt is used and can promptly release the belt from the buckle. BACKGROUND ART A buckle from which a belt can be easily separated by pushing an automatic button is shown in FIGs. 1 and 2. A catching piece 12 is fixed to the opposite side of a plate spring 11 to which one side of a body 10 of the buckle 1. A button 20 having a shaft in which a recessed portion 13 and an inclined jaw 14 are formed is inserted into the rear side of the catching piece to locate the catching piece 12 to the recessed portion 13. The button is resiliently supported by a spring 15. If the button is pushed, the catching piece 12 located in the recessed portion 13 is raised by the inclined jaw 14. Then, a bending boss 16 which is bent at the tip end of the catching piece 12 and is caught to an uneven portion 2a of the belt 2 is released to easily release the belt. However, since the conventional buckle needs the plate spring and the catching piece attached to the body of the buckle, the thickness of the buckle body is increased. DISCLOSURE OF INVENTION In order to settle the above-mentioned problem, the present invention has a main plate and a latch the radius of which is gradually increased in the clockwise direction on one surface of a cylindrical rotating section of a belt stopping member which is separated by a distance larger than the thickness of the belt. The cylindrical rotating section has a right triangle shaped hole which has an inclined edge from the right upper portion towards the lower portion. Two recesses are installed at the extending portion of the head portion in a button member which operates the belt stopping member. The recesses is mounted to two projections formed in the belt stopping member engaging recess. A conic roller is protruded from the extending portion of the head portion. The button member is inserted into a belt stopping member by interposing a coil spring. By pushing the button member, a conic roller pushes the edge of the hole of the right triangular shape formed in the belt stopping member to compulsorily rotate the belt stopping member. It is an object of the present invention to provide a buckle from which a belt can be easily released by the operation of a button member. It is another object of the present invention to provide an improved buckle which can firmly catch a belt without thickening the thickness of the buckle. In order to achieve the above-mentioned object, the present invention comprises a main plate, and a belt stopping member which is engaged with the main plate. The belt stopping member has a latch in which the radius of the latch is increased in the insertion direction of the belt and which can make the distance between the latch and the main plate smaller than the thickness of the belt. The belt stopping member comprises a cylindrical rotation section which is rotated by the insertion of the belt and a button member which can rotate the cylindrical rotation section so that the portion in which the latch is not installed is moved towards the main plate. By installing a latch which makes the distance between the latch and the main plate smaller than the thickness of the belt by gradually increasing the radius thereof in the proceeding direction of the belt on one surface of the cylindrical rotation section of the belt stopping member which is engaged so as to be separated from the main plate with the distance larger than the thickness of the belt, the belt can be stopped even without forming a separate ratchet in the belt . A detachable buckle comprises a main plate in which two brackets are protruded and are separated from each other by the width of a belt, and a belt stopping member separated from the main plate by a distance and engaged with the brackets. The belt stopping member comprises a cylindrical rotation section having a latch extended by the width of the belt and a button member. The radius of the latch is gradually increased towards the insertion direction of the belt. The latch is extended by the width of the belt . The distance between the latch and the main plate is gradually reduced and is smaller than the thickness of the belt. The distance between the portion in which the latch is not installed and the main plate is larger than the thickness of the belt. The button member rotates the cylindrical rotation section so that the portion of the cylindrical rotation section m which the latch is not installed is moved towards the main plate. One side of the cylindrical rotation section included in the belt stopping member is engaged with the bracket by a nut, and the opposite side thereof is connected to the bracket. The cylindrical rotation section is rotated by the linear movement of the button member. BRIEF DESCRIPTION OF DRAWINGS This invention will be better understood and its various objects and advantages will be more fully appreciated from the following description taken m conjunction with the accompanying drawings, m which: FIG. 1 is a perspective view for showing a conventional buckle; FIG. 2 is a cross-sectional view for showing the conventional buckle; FIG. 3 is a perspective view for showing a buckle of the present invention; FIG. 4 is an exploded perspective view for showing the buckle of the present invention; FIG. 5 is a vertical cross-sectional view for showing the buckle of the present invention which is taken along the line VII-VII of FIG. 3; FIG. 6a is a perspective view for showing the operation of the button when the button s started to be pushed; FIG. 6b is a perspective view for showing the operation of the button when the button is pushed by a half; FIG. 6c is a perspective view for showing the operation of the button when the button is completely pushed; FIG. 7a is a cross-sectional view for showing the operation of the buckle of the present invention which is taken along the line IXa-IXa of FIG. 6a; FIG. 7b is a cross-sectional view for showing the operation of the buckle of the present invention which is taken along the line IXb-IXb of FIG. 6c ; FIG. 8a is a cross-sectional view for showing the operation of the buckle of the present invention which is taken along the line Xa-Xa of FIG. 6a; and FIG. 8b is a cross-sectional view for showing the operation of the buckle of the present invention which is taken along the line Xb-Xb of FIG. 6c. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, this invention will be described m detail with reference to the drawings. Referring to FIGs . 3 to 5, a buckle device 100 for a belt comprises a main plate 110 and a belt stopping member 210 which is restricted on the mam plate to fix the end portion of the belt onto the mam plate 110. The buckle is made of a copper, a stainless steel, or the like. A decoration can be attached to the outer surface of the ma plate 110 of the buckle. The main plate 110 comprises a U-shaped collar 130 which is formed in the vicinity of a first side surface of the main plate 110, and first and second brackets 121 and 123 which are located in the vicinity of a second side surface of the main plate 110 and are opposite to each other. The first bracket 121 is separated from the second bracket 123 by the width of the belt. The free end of the belt is inserted into and withdrawn from a passage defined between the collar 130 and the main plate 110. A U-shaped belt engaging section 129 which is extended towards the second side surface of the main plate 110 is formed at the end portions of the first and second brackets 121 and 123. guides 151 and 153 are formed on the lower sides of the first and second brackets 121 and 123 towards the collar 130. Belt stopping member engaging holes 125 and 127 are formed at positions of the first and second brackets 121 and 123 which are higher than the thickness of the belt. Projections 131 and 133 are protruded from the belt stopping member engaging hole 125 formed in the first bracket 121 and are opposite to each other. The belt stopping member engaging hole 127 formed in the second bracket 123 has a circular shape. The belt stopping member comprises a cylindrical rotation section 211 to which a latch 215 is axially extended and is fixed to one side surface thereof, and a coil spring 213 and a button member 217 which are located in the rotation section 211. The latch 215 is extended by the width of the belt along a portion of the cylindrical surface from the lower side of the rotation section 211 toward the upper side of the rotation section 211. A right triangular hole 221 which has an inclined edge from the right upper portion to the lower side is formed on the opposite side in which the latch 215 is formed in the cylindrical rotating section 211. The radius of the latch 215 is gradually increased in the clockwise direction. A plurality of catching teeth are formed on the surface of the latch 215. When the belt stopping member 210 is engaged with the main plate 110, the distance between the peripheral surface of the rotation section 211 in which the latch 215 is not formed and the main plate 110 is larger than the thickness of the belt. The distance between the first catching tooth 215a of the latch 215 and the main plate 110 is smaller than the belt. The distance between the first catching tooth 215a of the latch 215 and the main plate 110 enables the free end of the belt to be inserted between the rotation section 211 and the main plate. On the other hand, the end of the first catching tooth 215a of the latch 215 is rounded to prevent the free end of the belt from being worn when the belt is inserted into the buckle. The button member 217 comprises a head portion 251, an extending portion 253 which is extended from the head portion 251 and has a diameter smaller than the diameter of the rotation section 211 and can be inserted into the interior of the cylindrical rotation section 211, and a rod portion 255 which is slim and is extended from the extending portion 253. Recesses 257 and 259 are formed lengthwise in the extending portion so as to correspond to the projections 133 and 134 of the belt stopping member engaging hole 131. One side of the rotation section 211 is engaged by a button member 127 inserted through the belt stopping member engaging hole 125 formed the first bracket 121, and the other side thereof is supported by a rivet 281 inserted through the belt stopping member engaging hole 127 formed m the second bracket 121 from outside by interposing the coil spring 213. In the state which the belt stopping member 210 is engaged between the first and second brackets 121 and 123, the recesses 257 and 259 which are formed the extending portion 253 of the button member can only be moved upward and downward but not be rotated by interrupting the projections 131 and 133 protruded inwardly of the belt stopping member engaging hole 131 formed m the first bracket. To the contrary, the belt stopping member engaging hole 127 which is formed of a circle which is formed m the second bracket 123 is engaged by a rivet 281, and is fixed such that the cylindrical rotation section 211 is rotated between the belt stopping member engaging recesses 125 and 127. The rod portion 255 which is extended from the extending portion 253 of the button member 217 is inserted into a coil spring 213 inserted into the interior of the cylindrical rotation section 211. By inserting the rod portion 255 into the coil spring 213 located m the interior of the cylindrical section 211, when the button is pushed, the extending portion 253 of the button member 217 vertically pushes the coil spring 213 located m the interior of the cylindrical rotation section 211. And, when the force is removed from the button member 217, the coil spring 213 pushes up the extending portion 253 of the button member 217 and can be operated with a smaller force. A pushing rod 265 withdrawn outside through a right triangular shaped hole 221 formed m the cylindrical rotation section 211 is engaged from the extending portion 253 of the button member 217. A conic roller 267 is mounted to the pushing rod 265. The conic roller 267 makes contact with the inclined surface of the hole 221 formed in the cylindrical rotation section. When the button member 217 is pushed, the roller 267 mounted to the pushing rod 265 pushes the inclined surface of the triangular hole 221 formed m the cylindrical rotation section 211 as the button member 217 is linearly moved down toward the lower side and is rotated to rotate the cylindrical rotation section 211 m the clockwise direction. A portion of the cylindrical rotation section 211 is surrounded by a protecting tube 271 to prevent the filth from being introduced into the cylindrical rotation section 211. Hereinafter, the operation of the present invention will be explained with reference to FIGs . 6 to 8. The belt is passed from the right side of the mam plate 110 via the collar 130, and is inserted between the mam plate 110 and the cylindrical rotation section 211, pushing the catching tooth 215a of the latch member 215 formed m the cylindrical rotation section 211 which constitutes the belt stopping member 210. Since the distance between the first catching tooth 215a and the mam plate 110 is smaller than the thickness of the belt, the belt which is inserted between the mam plate 110 and the cylindrical rotation section 211 is engaged with the catching tooth 215. If the belt is pulled to separate the belt from the buckle, the pulling force is transferred to the cylindrical rotation section 211 to rotate the cylindrical rotation section 211 m the clockwise direction. The radius of the latch 215 formed the cylindrical rotation section 211 is gradually increased the clockwise direction. A the cylindrical rotation section 211 is rotated in the clockwise direction, the distance between the catching tooth 215a of the latch 215 and the ma plate 110 is narrowed. As the belt is withdrawn, the second catching tooth 215 is engaged and can not be withdrawn from the buckle further. Furthermore, since the latch 215 formed m the cylindrical rotation section 211 has a length which is similar to the width of the belt and is formed axially of the rotation section, the area which is engaged with the belt is enlarged and the belt cannot be withdrawn further from the belt even if a latchet is not separately formed m the belt. FIG. 7a and 8a show the state m which the belt is engaged with the first catching tooth 215a of the latch 215 and the mam plate 110. In the above-mentioned state, the coil spring 213 contained m the interior of the cylindrical rotation section 211 pushes the extending portion 253 of the button member 217 and the head portion 251 of the button member 217 is moved upward. In order to separate the belt inserted between the ma plate 110 and the cylindrical section 211 from the buckle, the head portion 251 of the button member 217 is pushed and the belt is withdrawn from the buckle. As shown m FIGs. 4 and 6a, if the head portion 251 of the button member 217 is pushed, since the projections 131 and 133 protruded from the belt stopping member engaging recess 125 formed m the first bracket 121 is inserted into the recesses 257 and 259 formed m the extending portion 255 of the button member 217, the button member 217 is not rotated and is moved downward. As shown m FIG. 6b, as the button member 217 is moved downward, the extending portion 253 of the button member 217 is inserted into the cylindrical rotation section 211 and compresses the coil spring 213. On the other than, the roller 265 mounted to the pushing rod 265 exposed outside through the right triangular hole 221 of the cylindrical rotation section from the extending portion 255 of the button member 217 rotates about the inclined edge of the right triangular shape and presses the edge . As the edge of the right triangular shape which is formed in the cylindrical rotation section 211 by the roller 267 mounted to the pushing rod 265 is pushed, the cylindrical rotation section 211 is rotated m the clockwise direction. As the cylindrical rotation section 211 is rotated m the clockwise direction, the distance between the latch installed m the cylindrical rotation section 211 and the mam plate 110 is increased. As shown m FIG. 6c, if the roller 267 mounted to the pushing rod 265 exposed outside through the right triangular shaped hole 221 of the cylindrical rotation shape from the extending portion 255 of the button member 217 is moved downward to the most lowest portion of the inclined surface of the right triangular shaped hole 221 of the cylindrical rotation section 211, the cylindrical rotation section 211 is rotated and the peripheral surface m which the latch is not formed is moved towards the mam plate 110. Then, since the distance between the peripheral surface of the rotation section 211 m which the latch 215 is not formed and the mam plate 110 is larger than the thickness of the belt, the belt can be easily withdrawn from the buckle. FIG. 7b is a horizontal cross-sectional view for showing the state m which the belt inserted between the ma plate 110 and the cylindrical rotation section 211 is separated form the enmeshing of the catching tooth of the latch by the rotation of the cylindrical rotation section 211, and FIG. 8b is a vertical cross-sectional view. Referring to FIG. 8b, the head portion 251 of the button member 217 is moved downward, and then the cylindrical rotation section 211 is completely rotated and the peripheral surface m which the latch is not formed moved towards the mam plate 110 and the distance between the peripheral surface of the rotation section 211 and the mam plate 110 is larger than the thickness of the belt. FIG. 7a is a vertical cross-section for showing the state m which the belt inserted between the ma plate 110 and the cylindrical rotation section 211 is engaged with the catching tooth 215a between the first catching tooth 215a of the latch 215 and the mam plate 110, and FIG. 8a is a horizontal cross-sectional view. Referring to FIG. 8a, the belt inserted between the mam plate 110 and the cylindrical rotation section 211 is engaged with the second and third catching teeth of the latch 215. Then, the head portion of the button member is protruded upward . FIG. 7b is a horizontal cross-sectional view for showing the state which the belt inserted between the ma plate 110 and the cylindrical rotation section 211 is separated from the engaging state of the catching tooth 215a of the latch 215 by the rotation of the cylindrical rotation section 211, and FIG. 8b is a vertical cross-sectional view. Referring to FIG. 8b, the head portion 251 of the button member 217 is moved downward, and the cylindrical rotation section 211 is completely rotated and the peripheral surface in which the latch is not formed is moved towards the main plate 110 and the distance between the peripheral surface of the rotation section 211 in which the latch 215 is not formed and the main plate is larger than the thickness of the belt. The present invention comprises the main plate and the latch which has a radius which is increased in the clockwise direction on one surface of the cylindrical rotation section of the belt stopping member which is engaged so as to be separated by a distance larger than the thickness of the belt. Therefore, the belt can be stably stopped without forming a separate catching piece and a latchet in the belt, and the thickness of the buckle can be reduced. While this invention has been particularly shown and described with reference to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be effected therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims: CLAIMS 1. A detachable buckle which comprises a main plate in which two brackets are protruded and are separated from each other by the width of a belt, and a belt stopping member separated from the main plate by a distance and engaged with the brackets, wherein the belt stopping member comprises a cylindrical rotation section having a latch extended by the width of the belt and a button member, the radius of the latch being gradually increased towards the insertion direction of the belt, the latch being extended by the width of the belt, the distance between the latch and the main plate being gradually reduced and smaller than the thickness of the belt, the distance between the portion in which the latch is not installed and the main plate being larger than the thickness of the belt, the button member rotating the cylindrical rotation section so that the portion of the cylindrical rotation section in which the latch is not installed is moved towards the main plate. 2. A detachable buckle according to claim 1, wherein one side of the cylindrical rotation section included in the belt stopping member is engaged with the bracket by a nut, and the opposite side thereof is connected to the bracket. 3. A detachable buckle according to claim 2, wherein the cylindrical rotation section is rotated by the linear movement of the button member.

Inventors: HWANG SO HYUN, HWANG, SO, HYUN
Applicants: HWANG SO HYUN, KIM SUNG KEUN, HWANG, SO, HYUN, KIM, SUNG, KEUN
Application year: 2001
Main classification: A44B11
IPC codes: A44B11