Claims
[I] A punching apparatus for a binder comprising: a lower unit connected to a predetermined part of a binder; a upper unit disposed above the lower unit at a predetermined distance; a connecting unit for connecting the lower unit and the upper unit at predetermined distance; and a punching member rotatably connected to the upper unit and including a body and a pressurizing member, where the body is formed in a cylindrical shape, has a blade formed along a bottom edge, and penetrates the upper unit, and the pressurizing member is formed by externally bending an upper part of the body.
[2] The punching apparatus of claim 1, wherein a plurality of protrusions are formed on a top of the pressurizing member in order to rotate the punching member without being slipped when a user applies a pressurizing force and a rotating force on the top of the pressurizing member.
[3] The punching apparatus of claim 1, wherein a plurality of grooves are formed on a top of the pressurizing member in order to rotate the punching member without being slipped when a user applies a pressurizing force and a rotating force on the top of the pressurizing member.
[4] The punching apparatus of claim 1, wherein the lower unit includes holes formed at one side thereof to be inserted in a binder.
[5] The punching apparatus of claim 1, wherein the body of the punching member includes a top having an inside diameter larger than that of a bottom of the body in order to easily discharge punched parts of a target object, which enter into the body from the bottom of the body.
[6] The punching apparatus of claim 1, wherein the connecting unit is made of elastic material.
[7] The punching apparatus of claim 1, wherein the lower unit, the upper unit, and the connecting unit are integrally formed.
[8] The punching apparatus of claim 1, wherein the punching member includes a plurality of protrusions formed at an outer circumference side of the body to prevent the punching member from being separated from the upper unit.
[9] The punching apparatus of claim 1, further comprising a joint member surrounding an outer circumference side of the punching member in order to prevent the punching member from being separated from the upper unit.
[10] The punching apparatus of claim 9, wherein the joint member is one of a circular washer, a clip washer, and a linear clip.
[I I] The punching apparatus of claim 9, wherein a joint groove or a joint protrusion is formed on an outer circumference side of the body corresponding to the joint member. [12] The punching apparatus of anyone of claims 1 to 11, further comprising a lid contacting the pressurizing member of the punching member and covering a top of the body. |
Description
PUNCHING APPARATUS FOR BINDER
Technical Field
[1] The present invention relates to a punching apparatus for a binder, and more particularly, to a punching apparatus for forming a plurality of holes in a target object at a regular interval in order to file the target object in a binder. Background Art
[2] Conventionally, a punch described in Fig. 1 was generally used.
[3] Fig. 1 is a cross-sectional view of a punch according to the related art.
[4] The punch 10 according to the related art includes a support member 1 and a push bar 2. The punch 10 further includes a cylindrical punching bar 3 formed at one side of the push bar 2. The support member 1 is connected to the support member 2 through an elastic member 4. When a user pushes the push bar 2, the push bar 2 pushes the punching bar 3 connected to the push bar 2 and a predetermined level of pressure is instantly applied to a target object 5 like a lever. As a result, holes are formed in a form of the cross-section shape of the punching bar 3 at predetermined locations of the target object 5 supported by a punching die 6.
[5] Since the conventional punch 10 is generally large in volume, it is difficult to carry around. Also, it is very difficult to precisely form holes at target locations of the target object 5 corresponding to a plurality of rings disposed in a binder using one punch.
[6] In order to overcome such a problem, a punching apparatus for a binder (not shown) according to the related art was introduced. The punching apparatus for a binder includes a plurality of punches 10 disposed at a predetermined interval. Such a punching apparatus forms a plurality of holes at a regular interval in a target object. However, the punching apparatus for the binder is also large in volume because the punching apparatus includes a plurality of punches 10.
[7] The conventional punching apparatus for a binder according to the related art also has disadvantages as follows. A user such as a student may have difficulty to carry the conventional punching apparatus from home to a school or to a library due to the large volume of the punch. Since the punching apparatus is not frequently used in home, it is economically not effective to buy the punching apparatus for a binder, additionally. The conventional punching apparatus for a binder is also inconvenient to use and to be organized.
Disclosure of Invention Technical Problem
[8] It is, therefore, an object of the present invention to provide a punching apparatus
for a binder, which enables a user to precisely and smoothly form holes at predetermined positions of a target object at a regular interval through pressurizing and rotating punching members having a simple structure and a cylindrical blade unlike a conventional punching apparatus that forms holes using a punch and a die by instantly applying a predetermined level of pressure. Technical Solution
[9] In accordance with one aspect of the present invention, there is provided a punching apparatus including a lower unit, an upper unit, a connecting unit, and a punching member. The lower unit is connected to a predetermined part of a binder. The upper unit is disposed above the lower unit at a predetermined distance. The connecting unit connects the lower unit and the upper unit at predetermined distance. The punching member is rotatably connected to the upper unit and includes a body and a pressurizing member. The body is formed in a cylindrical shape, has a blade formed along a bottom edge, and penetrates the upper unit, and the pressurizing member is formed by externally bending an upper part of the body.
Advantageous Effects
[10] A punching apparatus for a binder according to an embodiment of the present invention has advantageous effects as follows.
[11] At first, the punching apparatus according to an embodiment of the present invention is small in volume and easy to carry. Therefore, it is convenient for a user such as a student to carry the punching apparatus from home to a school or to a library, vice versa.
[12] Secondly, the punching apparatus according to an embodiment of the present invention can be disposed at a predetermined position of a binder. When a user infrequently use the punching apparatus for a binder, it is very convenient to use the punching apparatus disposed at a binder in order to make holes in a target object such as paper, cloth, vinyl, and leather for filing the target object in the binder.
[13] Thirdly, the punching apparatus according to an embodiment of the present invention includes a pressurizing member to protect a user s hands and to enable a user to conveniently make holes at a target object with less power.
[14] Fourthly, the punching apparatus according to an embodiment of the present invention includes a lid adjacent to a pressurizing member of a punching member for opening or closing the top of a body, thereby easily removing punched parts of a target object.
Brief Description of the Drawings
[15] The above and other objects and features of the present invention will become apparent from the following description of the preferred embodiments given in
conjunction with the accompanying drawings, in which:
[16] Fig. 1 is a cross-sectional view of a punch according to the related art;
[17] Fig. 2 is a perspective view of a punching apparatus for a binder according to first to fourth embodiments of the present invention; [18] Fig. 3 is an exploded perspective view of a punching apparatus according to the first embodiment; [19] Figs. 4 and 5 are magnified cross-sectional views illustrating a punching member A shown in Fig. 3; [20] Fig. 6 is a top view and a cross-sectional view illustrating a joint member of a punching apparatus for a binder according to an embodiment of the present invention; [21] Fig. 7 is a cross-sectional view of a punching apparatus according to the first embodiment coupled by the joint member of Fig. 6; [22] Fig. 8 is an exploded perspective view of a punching apparatus for a binder according to the second embodiment of the present invention; [23] Figs. 9 and 10 are magnified cross-sectional views of a punching member B shown in Fig. 8; [24] Fig. 11 is an exploded perspective view of a punching apparatus for a binder according to the third embodiment of the present invention; [25] Figs. 12 and 13 are magnified cross-sectional views of a punching member C shown in Fig. 11 ; [26] Fig. 14 is a cross-sectional view of a punching apparatus according to the third embodiment coupled with the joint member of Fig. 6; [27] Fig. 15 is an exploded perspective view of a punching apparatus for a binder according to the fourth embodiment of the present invention; [28] Figs. 16 and 17 are magnified cross-sectional views of a punching member D shown in Fig. 15; [29] Fig. 18 is a cross-sectional view of a punching apparatus according to the fourth embodiment coupled with the joint member of Fig. 6; [30] Fig. 19 is a diagram illustrating a punching apparatus according to the first to fourth embodiments of the present invention in use; [31] Fig. 20 is a perspective view of a punching apparatus for a binder according to a fifth embodiment of the present invention; [32] Fig. 21 is a perspective view of a punching apparatus for a binder according to a sixth embodiment of the present invention; [33] Fig. 22 is a perspective view of a first lid of a punching apparatus for a binder according to the present invention;
[34] Fig. 23 is a cross-sectional view of a first lid of Fig. 22;
[35] Fig. 24 is a cross-sectional view of the first lid of Fig. 22 coupled with a punching
apparatus;
[36] Fig. 25 is a perspective view of the first lid of Fig. 22 coupled with a punching apparatus;
[37] Fig. 26 is a cross-sectional view of a second lid of a punching apparatus for a binder according to the present invention;
[38] Fig. 27 is a cross-sectional view of a second lid of Fig. 26 coupled with a punching apparatus;
[39] Fig. 28 is a perspective view of a second lid of Fig. 26;
[40] Fig. 29 is a top view of a third lid of a punching apparatus for a binder according to the present invention;
[41] Fig. 30 is a cross-sectional view of a third lid of Fig. 29 coupled with a punching apparatus; and
[42] Fig. 31 is a perspective view of a third lid of Fig. 29.
Best Mode for Carrying Out the Invention
[43] Other objects and aspects of the invention will become apparent from the following description of the embodiments with reference to the accompanying drawings, which is set forth hereinafter.
[44] Fig. 2 is a perspective view of a punching apparatus according to the first to fourth embodiments of the present invention.
[45] Each of the punching apparatus 100, 200, and 300 according to the first to fourth embodiments includes a lower unit 110, 210, or 310, a upper unit 120, 220, or 320, a connecting unit 130, 230, or 330, and a punching member 140, 240, or 340, respectively.
[46] Hereinafter, the punching apparatus according to the first embodiment will be described with reference to Figs. 2 to 7.
[47] Fig. 3 is an exploded perspective view of a punching apparatus for a binder according to a first embodiment, Figs. 4 and 5 are magnified cross-sectional views illustrating a punching member shown A in Fig. 3, Fig. 6 is a top view and a cross- sectional view illustrating a joint member of a punching apparatus for a binder according to an embodiment of the present invention, and Fig. 7 is a cross-sectional view of a punching apparatus according to the first embodiment coupled by the joint member of Fig. 6.
[48] The punching apparatus 100 according to the first embodiment includes a lower unit 110, an upper unit 120, a connecting unit 130, and punching members 140.
[49] In the punching apparatus according to the first embodiment, the lower unit 110 is coupled to one side of a binder 400 as shown in Fig. 19.
[50] The upper unit 120 is disposed above the lower unit 110 at a predetermined distance
and coupled to the connecting unit 130. A target object, such as paper, cloth, vinyl, and leather, is inserted between the upper unit 120 and the lower unit 110. Then, predetermined locations thereof are punched. The punching apparatus according to the first embodiment includes an elastic board (not shown) folded two times. The upper unit 120 refers the part of the folded board disposed at the top, and the lower unit 110 refers the part of the folded board disposed at the bottom. The connecting unit 130 refers the part of the folded board connecting the upper unit 120 and the lower unit 110 as shown in Fig. 3.
[51] The punching members 140 are disposed at one side of the upper unit 120 to penetrate the upper unit 120. The punching apparatus 100 according to the first embodiment includes a plurality of punching members 140 as many as the number of rings 411 disposed in a binder 400. The punching members 140 are disposed at the same interval of the rings 411. Also, the punching members 140 are separated at the same interval of the rings 411 disposed in the binder 400. The number of the rings 411 may be two, three, or more.
[52] Such punching members 140 are rotatably connected to the upper unit 120. When a target object is inserted between the upper unit 120 and the lower unit 110, a user pressurizes and rotates the punching members 140 to make holes at the target object.
[53] In more detail, each of the punching members 140 includes a cylindrical body 141 and a pressurizing member 143.
[54] The body 141 has a cylindrical shape having opened top and bottom, and a blade
146 is formed along the bottom edge of the body 141. Accordingly, when a user pressurizes and rotates the body 141 with the bottom thereof contacted to the target object such as paper, cloth, vinyl, and leather, circular holes are formed at the target object along the shape of the body 141. Herein, the top of the body 141 has an inside diameter bigger than that of the bottom of the body 141 as shown in Figs. 4 and 5. Such a shape of the body 141 allows the punching members 140 to easily discharge punched parts of a target object upwardly after the punching members 140 form holes at the target object.
[55] As shown in Fig. 7, the body 141 is inserted into the upper unit 120, and the joint member 150 shown in Fig. 6 is pressurized and jointed with the body 141. The joint member 150 prevents the punching members 140 from being separated from the upper unit 120. That is, the punching member 140 penetrates and coupled with the upper unit 120 by the joint members 150. The joint member 150 prevents the punching member 140 from being separated upwardly from the upper unit 120, and the pressurizing member 143 prevents the punching member 140 from being separated downwardly from the upper unit 120.
[56] As shown in Fig. 6, the joint member 150 may have various shapes such as a
circular washer 151, a clip washer 152, or a linear clip 153.
[57] The pressurizing member 143 is disposed to be flattened by being connected to the top of the body 141. Such a pressurizing member 143 protects the hands of a user when the user pressurizes the top of the body 141 and enables a user to easily pressurize the target object with less power. A plurality of grooves 144 or a plurality of protrusions 145 are formed on the top side of the pressurizing member 143. The grooves 144 or the protrusions 145 prevent the user s fingers from being slipped so as to easily pressurize and rotate the punching member 140.
[58] A punching apparatus for a binder according to the second embodiment will be described with reference to Figs. 8 through 10.
[59] Fig. 8 is an exploded perspective view of a punching apparatus for a binder according to the second embodiment of the present invention, and Figs. 9 and 10 are magnified cross-sectional views of a punching member B shown in Fig. 8.
[60] The punching apparatus 100 according to the second embodiment includes a lower unit 110, an upper unit 120, a connecting unit 130, and punching members 140.
[61] The upper unit 120 and the body 141 of the punching member 140 in the punching apparatus according to the second embodiment are identical to the upper unit 130 and the body 141 of the punching member 140 in the punching apparatus 100 according to the first embodiment.
[62] As described above, the punching members 140 includes the body 141 and the pressurizing member 143. The body 141 has a top having an inside diameter larger than the inside diameter of the bottom as shown in Figs. 9 and 10.
[63] Unlike the punching apparatus according to the first embodiment, a plurality of protrusions 147 are formed at the outer circumference side of the body 141. The protrusions 147 prevent the punching members 140 from being separated from the upper unit 120. That is, the protrusions 147 prevents the punching members 140 penetrating the upper unit 120 from being separated upwardly from the upper unit 120, and the pressurizing member 143 prevents the punching members 140 from being separated downwardly from the upper unit 120.
[64] Hereinafter, a punching apparatus for a binder according to the third embodiment will be described with reference to Figs. 11 through 14.
[65] Fig. 11 is an exploded perspective view of a punching apparatus for a binder according to the third embodiment of the present invention, and Figs. 12 and 13 are magnified cross-sectional views of a punching member C shown in Fig. 11. Fig. 14 is a cross-sectional view of a punching apparatus according to the third embodiment coupled with the joint member of Fig. 6.
[66]
[67] The punching apparatus 200 according to the third embodiment includes a lower
unit 210, an upper unit 220, a connecting unit 230, and punching members 240.
[68] Since the upper unit 220 and the body 241 of the punching member 240 of the punching apparatus according to the third embodiment are identical to the upper unit 120 and the body 141 of the punching member 140 of the punching apparatus 100 according to the first embodiment, the detailed description thereof is omitted.
[69] As described above, the punching member 240 includes a body 241 and a pressurizing member 243. The body 241 includes the top having an inside diameter larger than an inside diameter of the bottom as shown in Figs. 12 and 13. The shape of the body 241 allows the punching members 240 to easily discharge punched parts of a target object upwardly after the punching members 240 form holes at the target object.
[70] A joint groove 242 may be formed on the outer circumference side of the body 241.
After the punching member 240 is inserted into the upper unit 220, the joint member 150 of Fig. 6 is coupled to the joint groove 242. The joint member 150 and the joint groove 242 prevent the punching members 240 from being separated from the upper unit 220. That is, the joint member 150 prevents the punching member 240 from being separated upwardly from the upper unit 220, and the pressurizing member 243 prevents the punching member 240 from being separated downwardly from the upper unit 220.
[71] Like the first embodiment, the joint member 150 may have various shapes such as a circular washer 151, a clip washer 152, or a linear clip 153.
[72] The pressurizing member 243 is disposed to be flattened by being connected to the top of the body 241. Such a pressurizing member 243 protects the hands of a user when the user pressurizes the top of the body 241 and enables a user to easily pressurize the target object with less power. A plurality of grooves 244 or a plurality of protrusions 245 are formed on the top side of the pressurizing member 243 according to the third embodiment. The grooves 244 or the protrusions 245 prevent the user s fingers from being slipped so as to easily pressurize and rotate the punching member 240.
[73] Hereinafter, a punching apparatus for a binder according to the fourth embodiment of the present invention will be described with reference to Figs. 15 through 18.
[74] Fig. 15 is an exploded perspective view of a punching apparatus for a binder according to the fourth embodiment of the present invention, and Figs. 16 and 17 are magnified cross-sectional views of a punching member D shown in Fig. 15; Fig. 18 is a cross-sectional view of a punching apparatus according to the fourth embodiment coupled with the joint member of Fig. 6.
[75] The punching apparatus 300 according to the fourth embodiment includes a lower unit 310, an upper unit 320, a connecting unit 330, and punching members 340.
[76] Since the upper unit 320 and the body 341 of the punching member 340 of the
punching apparatus according to the fourth embodiment are identical to the upper unit 120 or 220 and the body 141 or 241 of the punching member 140 or 240 of the punching apparatus 100 or 200 according to the first embodiment and the third embodiment, the detailed description thereof is omitted.
[77] As described above, the punching member 340 includes a body 341 and a pressurizing member 343. The body 341 includes the top having an inside diameter larger than an inside diameter of the bottom as shown in Figs. 16 and 17. The shape of the body 341 allows the punching members 340 to easily discharge punched parts of a target object upwardly after the punching members 340 form holes at the target object.
[78] A joint protrusion 342 may be formed on the outer circumference side of the body
341. After the punching members 340 are inserted to the upper unit 320, the joint member 150 of Fig. 6 is coupled at the top of the joint protrusion 342. As a result, the joint protrusion 342 prevents the punching members 340 from being separated from the upper unit 320. It is preferable that the joint member 150 may be made of elastic material to be connected to the top of the joint protrusion 342 through the joint protrusion 342.
[79] That is, the joint member 150 prevents the punching member 340 connected to the upper unit 320 after penetrating the upper unit 320 from being separated upwardly from the upper unit 320, and the pressurizing member 343, which will be described in later, prevents the punching member 340 from being separated downwardly from the upper unit 320.
[80] In addition, a plurality of the protrusions 147 formed on the outer circumference side of the body 141 in the second embodiment prevents the punching members from being separated from the upper unit 120 by itself. Unlike the protrusions 147, the joint protrusion 342 according to the fourth embodiment prevents the punching members from being separated from the upper unit 120 through the joint member 150. Also, the joint protrusions 342 are different from a plurality of the protrusions 147 in the shape thereof because the joint protrusions 342 are formed along the outer surface side of the body 341.
[81] As described above, the joint member 150 may have various shapes such as a circular washer 151, a clip washer 152, or a linear clip 153.
[82] The pressurizing member 343 is disposed to be flattened by being connected to the top of the body 341. Such a pressurizing member 343 protects the hands of a user when the user pressurizes the top of the body 341 and enables a user to easily pressurize the target object with less power. A plurality of grooves 344 or a plurality of protrusions 345 are formed on the top side of the pressurizing member 343 according to the fourth embodiment. The grooves 344 or the protrusions 345 prevent the user s fingers from being slipped so as to easily pressurize and rotate the punching member
340.
[83] Hereinafter, a punching apparatus for a binder according to the fifth embodiment of the present invention will be described with reference to Fig. 20.
[84] Fig. 20 is a perspective view of a punching apparatus for a binder according to a fifth embodiment of the present invention.
[85] The punching apparatus according to the fifth embodiment includes a lower unit
510, an upper unit 520, a connecting unit 530, punching members 140, 240, 340, and joint members 150.
[86] According to the fifth embodiment, a plurality of grooves 511 are formed at one side of the lower member 510 in order to insert the punching apparatus according to the fifth embodiment in a binder.
[87] The pressurizing members 143, 243, and 343 of the punching members 140, 240, and 340 are disposed to be flattened by being connected to the top of the punching members 140, 240, and 340. The pressurizing members 143, 243, and 343 protect the hands of a user when the user pressurizes the top of the punching members 130, 230, and 330 and enables a user to easily pressurize the target object with less power. A plurality of grooves 144, 244, and 344 or a plurality of protrusions 145, 245, and 345 are formed on one side of the pressurizing members 143, 243, and 253. The grooves 144, 244, and 344 or the protrusions 145, 245, and 345 prevent the user s fingers from being slipped so as to easily pressurize and rotate the punching member 140, 240, and 340.
[88] The connecting unit 530 connects the upper unit 520 and the lower unit 510 at a predetermined distance. In the fifth embodiment of the present invention, an elastic member is used as the connecting unit 530 in order to separate the upper unit 520 and the lower unit 510 by elastic power. According to the punching apparatus for a binder according to the fifth embodiment, a target object is disposed between the upper unit 520 and the lower unit 510, and a user pressurizes the punching members 140, 240, and 340. If a user provides a pressurizing power greater than the elastic power of the connecting unit 530, the upper unit 520 moves to the lower unit 510. Accordingly, holes are formed at the target object disposed between the upper unit 520 and the lower unit 510.
[89] Since the upper unit 520 and the bodies 141, 241, and 341 of the punching members
140, 240, 340 in the punching apparatus according to the fifth embodiment are identical to the upper unit 120, 220, or 320 and the body 141, 241, or 341 of the punching member 140, 240, or 340 of the punching apparatus 100, 200, or 300 according to the first embodiment, the second embodiment, and the third embodiment, the detailed description thereof is omitted.
[90] Hereinafter, a punching apparatus for a binder according to the sixth embodiment of
the present invention will be described with reference to Fig. 21.
[91] Fig. 21 is a perspective view of a punching apparatus for a binder according to a sixth embodiment of the present invention.
[92] The punching apparatus according to the sixth embodiment includes a lower unit
510, an upper unit 520, punching members 140, 240, and 340, and joint members 150.
[93] As described above, the punching apparatus according to the fifth embodiment includes the lower unit 510, the upper unit 520, and the connecting unit 530, which are independently formed. Unlike the punching apparatus according to the fifth embodiment, the upper unit, the lower unit and the connecting unit are integrally formed in the sixth embodiment. For the convenience, the lower unit 610 will be described with the upper unit 620 distinguished.
[94] The lower unit 610 is formed in a shape of a binder to file a target object such as paper, cloth, vinyl, and leather having holes formed at one side thereof by the punching members 140, 240, and 340. Such a lower unit 610 includes rings 611 at one side for filing a plurality of target objects by inserting the rings 611 into the holes formed in the target objects.
[95] Since the upper unit 620, the punching members 140, 240, and 340, and the joint member 150 in the punching apparatus according to the sixth embodiment are identical to the upper unit 120 or 220, the punching member 140 or 240, and the joint member 150 in the punching apparatus 100, 200, or 300 according to the first embodiment, the third embodiment, and the fourth embodiment, the detailed description thereof is omitted.
[96] The punching apparatus for a binder according to an embodiment of the present invention may further includes a lid contacting the pressurizing member of the punching member and covering the top of the body as shown in Figs. 22 to 31.
[97] Fig. 22 is a perspective view of a first lid of a punching apparatus for a binder according to the present invention, Fig. 23 is a cross-sectional view of a first lid of Fig. 22, and Fig. 24 is a cross-sectional view of the first lid of Fig. 22 coupled with a punching apparatus. Fig. 25 is a perspective view of the first lid of Fig. 22 coupled with a punching apparatus.
[98] As shown in Figs. 22 to 25, a first lid 710 according to an embodiment of the present invention includes an insertion member 711, a ring member 712, a folding member 713, and a separating member 714, which are integrally formed.
[99] The ring member 712 of the first lid 710 is inserted between the pressurizing members 143, 243, and 343 of the punching members 140, 240, and 340 and the upper units 120, 220, 320, and 520. The insertion member 711 is folded by the folding member 713 and inserted in the body 141, 241, or 341 of the punching members 140, 240, or 340.
[100] A plurality of protrusions 145, 245, and 345 and grooves 144, 244, and 344 are formed on the top surface of the pressurizing members 143, 243, and 343 in a shape that allows the insertion member 711, the folding member 713, and the separating member 714 to be inserted. Due to the shape of the protrusions and the grooves, the insertion member 711, the folding member 713, and the separating member 714, are not projected higher than the surface of the pressurizing member not to disturb when a user pressurizes and rotates the pressurizing members of the punching members 140,
240, and 340 with fingers.
[101] The insertion member 711 has an inclined outer circumference side. The inclined outer circumference side makes the insertion member 711 to be firmly connected to the body using a frictional force and prevents the punched parts of a target object, which are punched by the punching members 140, 240, and 340, from being discharged to the outside of the bodies 141, 241, and 341.
[102] The separating member 714 enables the insertion member 711 to be easily opened and closed for removing the punched parts of the target object.
[103] Fig. 26 is a cross-sectional view of a second lid of a punching apparatus for a binder according to the present invention, Fig. 27 is a cross-sectional view of a second lid of Fig. 26 coupled with a punching apparatus, and Fig. 28 is a perspective view of a second lid of Fig. 26.
[104] As shown in Figs. 26 through 28, the second lid 720 includes an insertion member
721 and a separating member 724, which are integrally formed.
[105] In the second lid 720, the insertion member 721 is also inserted in the body 141,
241, or 341 of the punching members 140, 240, or 340.
[106] A plurality of protrusions 145, 245, and 345 and grooves 144, 244, and 344 are formed on the top surface of the pressurizing members 143, 243, and 343 in a shape that allows the separating member 724 to be inserted. Due to the shape of the protrusions and the grooves, the separating member 724 is not projected higher than the surface of the pressurizing member not to disturb when a user pressurizes and rotates the pressurizing members of the punching members 140, 240, and 340 with fingers.
[107] The insertion member 721 has an inclined outer circumference side. The inclined outer circumference side makes the insertion member 721 to be firmly connected to the body using a frictional force and prevents the punched parts of a target object from being discharged to the outside of the body 141, 241, or 341.
[108] The separating member 724 enables the insertion member 721 to be easily opened and closed for removing the punched parts of the target object.
[109] Fig. 29 is a top view of a third lid of a punching apparatus for a binder according to the present invention, Fig. 30 is a cross-sectional view of a third lid of Fig. 29 coupled
with a punching apparatus, and Fig. 31 is a perspective view of a third lid of Fig. 29.
[110] As shown in Figs. 29 through 31, the third lid 730 includes a center member 731, a support member 732, a locking plate 733, and a separating member 734, which are formed integrally.
[111] The top of the center member 731 is adjacent to the top of the pressurizing member
143, 243, or 343. The locking plate 733 is forcedly inserted between the pressurizing member 143, 243, or 343 and the upper unit 120, 220, 320, or 520 by elastic power and firmly connected to the punching members 140, 240, and 340 by the elastic power of the supporting member 732 connected to the center member 731 and the locking plate 733.
[112] A plurality of protrusions 145, 245, and 345 and grooves 144, 244, and 344 are formed on the top surface of the pressurizing members 143, 243, and 343 in a shape that allows the supporting member 732 to be inserted. Due to the shape of the protrusions and the grooves, the supporting member 732 is not projected higher than the surface of the pressurizing member not to disturb when a user pressurizes and rotates the pressurizing members of the punching members 140, 240, and 340 with fingers.
[113] The center member 731 of the third lid 730 prevents the punched parts of a target object, which are punched by the punching members 140, 240, and 340, from being discharged to the outside of the body 141, 241, or 341.
[114] The separating member 734 enables the locking plate 733 to be easily attached or detached for conveniently removing the punched parts of the target object.
[115] Herein, it is obvious that a plurality of the grooves 144, 244, and 344 and the protrusions 145, 245, and 345 can be combined together where the first, second and third lids 710, 720, and 730 are inserted.
[116] While the present invention has been described with respect to certain preferred embodiments, it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined in the following claims.