Abstract:
A correction tape roller device for covering an incorrect typography on paper with an adhesive correction material. The correction material roller device includes a first cog wheel for rotating a first roller, a second cog wheel for rotating according to a rotational degree of the first cog wheel, such that the tape from which the correction material has been peeled off is wound around the first roller, and a third cog wheel rotatably installed on one side of the inner surface of the case while being engaged with the first cog wheel. The third cog wheel is provided with a protrusion guiding the tape passing through the tape guide to control the tape tension so that the tape does not become loose.

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a correction tape roller device, and more particularly, to a correction tape roller device for covering an incorrect typography on paper with an adhesive correction material by pressing the tape coated with the correction material over the typographical errors on paper, and correcting the portion covered with the adhesive correction material in the necessary form. 
     2. Description of the Prior Art 
     A general correction tape roller device includes a predeterminately shaped case having an opening, at least one pair of rollers which are rotatably installed in the case, a tape wound on the rollers, and a tape guide which is installed in the opening, for guiding movement of the tape and allowing the correction material-coated tape to be pressed on paper. 
     A conventional correction tape roller device will be described with reference to FIGS. 1 and 2, in connection with the above correction tape roller device. 
     FIG. 1 is an exploded perspective view showing one example of a conventional correction tape roller device. FIG. 2 is an exploded perspective view showing the internal structure of the correction tape roller device of FIG. 
     Referring to FIG. 1, a correction tape roller device  100  is disclosed in U.S. Pat. No. 5,792,263, which includes a case  110 , a first roller  130  around which the tape  120  coated with the correction material is wound, a second roller  140  around which the tape  120  from which the correction material has been peeled is wound, and a tape guide  150  in which at least one side thereof protrudes outward from the case  110  to allow the tape  120  coated with the correction material to be pressed on paper needed to be corrected, for guiding movement of the tape  120 . Also, the correction tape roller device  100  further comprises an internal supporter  160  installed in the case  110 , for stably supporting the first roller  130 , the second roller  140 , and the tape guide  150 , a first gear  170  for rotating the first roller  130 , a second gear  180  rotatably installed while being engaged with the first gear  170 , for supporting the second roller  140 , and a cap  190  combined with the front end of the case  110 . 
     That is to say, when the tape  120  is pulled in one direction by an operation for coating the correction material on paper at the assembly state, the first roller  130  rotates and thus the second roller  170  rotates. Then, the second gear  180  engaged with the first gear  170  rotates, and the second roller  140  which is combined with the second gear  120  rotates. Naturally, the second roller  140  rotates in the reverse direction to the first roller  130 . Thus, the correction tape  120  is released from the first roller  130  and moves along the tape guide  150  to be wound around the second roller  140 . In this situation, the correction material is coated on the paper. 
     When the correction tape  120  moves, the moving path of the correction tape  120  should be properly adjusted so that the correction tape  120  smoothly moves. Such a play is performed by a first guide pole  112  and a second guide pole  114 . The first guide pole  112  guides the tape  120  released from the first roller  130  and the second guide pole  114  guides the tape  120  from which the correction material has been peeled off to be wound around the second roller  140 . Here, the first guide pole  112  always contacts an inner surface  120   a  of the tape  120 , that is, a smooth surface, which does not prevent the tape  120  from proceeding. Meanwhile, the second guide pole  114  does not prevent the tape  120  form moving in a general situation, that is, in the case that the tape  120  is supplied at the state that the correction material has been completely peeled off from the tape  120 . However, in the case that the tape  120  is supplied at the state that the correction material has not yet been removed from the tape  120 , the tape  120  does not smoothly move due to a relatively large frictional force generated between the correction material and the second guide pole  114 . To alleviate the above shortcoming, a guide rod  116  is further fitted on the outer circumferential surface of the second guide pole  114 . The guide rod  116  includes a throughhole  117  into which the second guide pole  114  is inserted and a head  118  for preventing the tape  120  from seceding upwards from the guide rod  116 . 
     That is, when the tape  120  is supplied at the state that the correction material has not been completely removed and thus the frictional force between the tape  120  and the guide rod  116  becomes larger, the guide rod  116  rotates to provide an advantage that the tape  120  from which the correction material has not been completely removed is comparatively smoothly passed. However, during correction, when the tape  120  from which the correction material has not been completely removed is instantaneously supplied toward the guide rod  116 , it may occur that the guide rod  116  does not rotate. In this situation, the tape  120  is not supplied toward the second roller  140 . Thus, the phenomenon that the tape  120  between the guide rod  116  and the end of the tape guide  150  becomes loose occurs often. If the tape guide  150  is kept apart from the paper at the state that the tape  120  between the guide rod  116  and the end of the tape guide  150  becomes loose, the whole tape  120  remaining between the first roller  130  and the second roller  140  becomes loose, and thus the portion where the correction material has been coated may freely move at the end of the tape guide  150 . It is difficult to perform a correction work at the state that the tape  120  freely moves. In particular, a correction work of the minute portion cannot be accurately performed. Accordingly, the correction work should be performed after applying a sufficient tension to the tape  120  between the first roller  130  and the second roller  140  by reversely rotating the first roller  130  or the second roller  140  by force by means of a predetermined tool. This is a very cumbersome process. In addition, as being the case, it frequently occurs that the second guide pole  114  is broken during assembly or disassembly, in which case the whole case  120  cannot be used. 
     SUMMARY OF THE INVENTION 
     To solve the above problems, it is an object of the present invention to provide a correction tape roller device in which tape is smoothly supplied and taken up between a first roller and a second roller, to thereby improve inconvenience in use that the tension of the tape should be adjusted during use. 
     To accomplish the above object of the present invention, there is provided a correction tape roller device having a predeterminately shaped case, a first roller rotatably installed in the case and around which tape coated with a correction material is wound, a second roller, adjacent the first roller, around which the tape released from the first roller and from which the correction material has been peeled off while passing through a predetermined path is wound, a fixing pole installed protrudingly in the inner surface of the case along the tape movement path, for guiding the correction material coated tape to move, and a tape guide installed protrudingly outward from one side of the case, for guiding the tape to move and press the correction material coated tape over predetermined paper to allow the correction material to be peeled off, the correction material roller device comprising: a first cog wheel installed on the lower side of the first roller and rotating according to a release degree of the tape wound around the first roller; a second cog wheel installed on the lower side of the second roller, and rotating according to a rotational degree of the first cog wheel while being engaged with the first cog wheel, with a result that the tape from which the correction material has been peeled off is wound around the first roller; and a third cog wheel rotatably installed in one side of the inner surface of the case while being engaged with the first cog wheel, and rotating according to a rotational degree of the first cog wheel, on the surface of which a pole guiding the tape having passed through the tape guide to move is formed. 
     There is also provided a correction tape roller device having a predeterminately shaped case, a first roller rotatably installed in the case and around which tape coated with a correction material is wound, a second roller, adjacent the first roller, around which the tape released from the first roller and from which the correction material has been peeled off while passing through a predetermined path is wound, and a tape guide installed protrudingly outwards from one side of the case, for guiding the tape to move and pressing the correction material coated tape over predetermined paper to allow the correction material to be peeled off, the correction material roller device comprising: a first cog wheel installed on the lower side of the first roller and rotating according to a release degree of the tape wound around the first roller; a second cog wheel installed on the lower side of the second roller, and rotating according to a rotational degree of the first cog wheel while being engaged with the first cog wheel, with a result that the tape from which the correction material has been peeled off is wound around the first roller; a third cog wheel rotatably installed in one side of the inner surface of the case while being engaged with the first cog wheel, and rotating according to a rotational degree of the first cog wheel, on the surface of which a pole guiding the tape having passed through the tape guide to move is formed; and a rotational ring rotatably installed on the lower end of the outer circumferential surface in the pole, for guiding the correction material coated tape. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     The object and other advantages of the present invention will become more apparent by describing in detail the structures and operations of the present invention with reference to the accompanying drawings, in which: 
     FIG. 1 is an exploded perspective view showing a conventional correction tape roller device; 
     FIG. 2 is an exploded perspective view showing the internal structure of the correction tape roller device of FIG. 1; 
     FIG. 3 is an exploded perspective view of a correction tape roller device according to the present invention; 
     FIG. 4 is a view for explaining the tape movement procedure in the correction tape roller device of FIG. 3; 
     FIG. 5 is a perspective view showing an example of a third cog wheel; 
     FIG. 6 is a sectional view showing the installation state of the third cog wheel of FIG. 5; 
     FIG. 7 is a perspective view showing another example of the third cog wheel; 
     FIG. 8 is a sectional view showing the installation state of the third cog wheel of FIG. 7; 
     FIG. 9 is a perspective view showing still another example of the third cog wheel; 
     FIG. 10 is an enlarged perspective view of a rotational ring of FIG. 9; and 
     FIG. 11 is a view for explaining the tape movement procedure according to use of the rotational ring. 
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. 
     As shown in FIGS. 3 through 4, a correction tape roller device  200  according to the present invention includes a case  210 . The case  210  has the structure where two substantially symmetrical members are combined with each other, and includes a sufficient space for installing internal components therein. Engagement protrusions  212  and latch holes  214  are installed in the respectively corresponding positions of the case  210 . It is desirable that the case  210  can be dismantled as necessary. By doing so, the first roller  230  and the second roller  240  around both of which new tape is wound can be replaced after complete consumption of the tape  220 . 
     An opening  216  is formed in one side of the case  210 . A tape guide  250  is protrudingly installed via the opening  216 . The tape guide  250  guides the tape  220  to move and presses the correction material coated tape  220  over predetermined paper. The tape guide  250  is rotatably installed in its place by a predetermined angle in a guide installation unit  218  formed in the inner surface of the case  210 . That is, the tape guide  250  is made to rotate by 90 degrees or so at the state shown in FIG. 3 for the user&#39;s convenience, to perform a correction work. In this situation, the user can hold the case  210  comfortably, which can facilitate a correction work. Thus, the internal tape  220  keeps a slightly twisted state between the fixing pole  213  and the tape guide  250 , and the protrusion  262  of the third cog wheel  260  and the tape guide  250 . 
     As shown in FIG. 3, the first roller  230  is installed in the case  210 . The first roller  230  is rotatably installed in its place, around which the correction material coated tape  220  is wound. The first cog wheel  232  having teeth  233  is installed in the lower end of the first roller  230 . 
     The second roller  240  is installed adjacent the first roller  230 . The second roller  240  is also rotatably installed in its place. The second cog wheel  242  having teeth  243  rotating while being engaged with the first cog wheel  232  is installed in the lower end of the second roller  240 . 
     Here, the first roller  230  and the second roller  240  are engaged with each other by means of the teeth  233  and  243 . The rotational ratio between the first roller  230  and the second roller  240  is constant. However, the diameter of the tape  220  wound around each roller is varied according to the use of the tape. To prevent any problem from occurring due to the variation in diameter of the tape wound, the diameter of the first roller  230  and the second roller  240  should be adjusted, considering the thickness of the correction material coated tape  220  wound around the first roller  230  and the tape  220  wound around the second roller  240  after the correction material has been peeled off. The tape  220  used for correction of the necessary paper and from the surface of which the correction material has been peeled off is wound around second roller  240 . 
     The fixing pole  213  for guiding the move of the tape  220  is further installed in the case  210 . The third cog wheel  260  rotatably installed in its place while being engaged with the first cog wheel  232  and rotating according to the rotational degree of the first cog wheel  232  is further installed in one side of the inner surface of the case  210 . A protrusion  262  protruding upwards, for guiding the movement of the tape  220  having passed through the tape guide  260  is installed on the surface of the upper portion of the third cog wheel  260 . The third cog wheel  260  in which the protrusion  262  is formed enables the tape  220  from which the correction material has been peeled off to be wound around the second roller  240  via the tape guide  250 , which is an essential portion of the present invention. The third cog wheel  260  can be varied in various forms, which will be described in more detail later. The third cog wheel  260  is always rotated during correction, although the tape  220  from which the correction material is not completely removed contacts the upper surface thereof, or the correction material having a certain adhesive property is stuck to the surface thereof. Thus, the movement of the tape  220  is not prevented due to a frictional resistance. 
     As shown in FIGS. 3 and 4, during a user&#39;s correction work, the first roller  230  rotates counterclockwise. Here, the first cog wheel  232  rotates in the same direction. The second cog wheel  242  and the third cog wheel  260  both which are engaged with the first cog wheel  232  rotate clockwise. Accordingly, the second roller  240  and the protrusion  262  rotate clockwise. As a result, the correction material coated tape  220  is supplied to the tape guide  250  via the fixing pole  213  at the state where the tape  220  is wound around the first roller  230 , and thus the correction material is coated on paper by means of the tape guide  250 . Then, the correction material removed tape  220  is wound around the second roller  240  via the protrusion  262  of the third cog wheel  260 . At this time, the tape  220  is supplied toward the second roller  240  at the state where the correction material is not completely removed, and contacts the protrusion  262 . Also, as being the case, it often occurs that the correction material still having an adhesive property adheres to the surface of the protrusion  262 . 
     By the above-described processes, even though the correction material which has not been completely removed from the surface of the tape  220  contacts or is stuck to the surface of the protrusion  262 , a frictional resistance due to the correction material is not generated since the protrusion  262  itself rotates. That is, although the tape  220  from which the correction material has not been removed is supplied abruptly to the protrusion  262 , the frictional resistance due to the correction material is not generated and the tape supply and take-up is smoothly performed. 
     As shown, an elongate hole is formed in one side of the case  210 , to manually rotate the first roller  230  as necessary and adjust the tension of the tape  220 . It is preferable that the case  220  is made of a transparent material. 
     FIG. 5 is a perspective view showing an example of a third cog wheel. FIG. 6 is a sectional view showing the installation state of the third cog wheel of FIG.  5 . 
     As shown in FIG. 5, a protrusion  262  is protrudingly formed upwards at the center of the upper surface of the third cog wheel  260 , and a support protrusion  264  which enables to be rotatably installed in the case  210  is formed at the center of the bottom surface thereof. The installation state of the third cog wheel  260  can be seen from FIG.  6 . As shown in FIG. 6, a support groove  211  is installed in the inner surface of the case  210 , with a result that the third cog wheel  260  is rotatably installed in its place. In this state, the third cog wheel  260  is engaged with the first cog wheel  232 . 
     FIG. 7 is a perspective view showing another example of the third cog wheel. FIG. 8 is a sectional view showing the installation state of the third cog wheel of FIG.  7 . 
     As shown in FIG. 7, a protrusion  262  is protrudingly formed upwards at the center of the upper surface of the third cog wheel  260 , and a throughhole  265  is formed along the inside of the protrusion  262 . In this situation, a support protrusion  215  which is inserted into the throughhole  265  and rotatably supports the third cog wheel  260  in its place is formed. The installation state of the third cog wheel  260  can be seen from FIG.  8 . As shown in FIG. 8, a support protrusion  215  is installed in the inner surface of the case  210 , with a result that the third cog wheel  260  is rotatably installed in its place. In this state, the third cog wheel  260  is engaged with the first cog wheel  232 . 
     FIG. 9 is a perspective view showing still another example of the third cog wheel. FIG. 10 is an enlarged perspective view of a rotational ring of FIG.  9 . FIG. 11 is a view for explaining the tape movement path according to use of the rotational ring. 
     As can be seen from FIGS. 9 to  11 , as being the case, a rotational ring  270  can be installed on the protrusion  262  of the third cog wheel  260 . The rotational ring  270  plays a role in place of the fixing pole  213  formed in the case  210  shown in FIGS. 3 and 4, in order to guide the correction material coated tape  220   a . That is, in the case that the rotational ring  270  is used, the fixing pole  213  shown in FIGS. 3 and 4 may not be installed. As shown in FIG. 10, it is preferable that the side surface of the rotational ring  270  is formed with a slight slope. However, a slope is not always necessary. In this situation, it is much better that the tape guide  250  is used at the state shown in FIG. 11 which is obtained by rotating the tape guide  250  of FIG. 3 by approximately 90 degrees. Only by doing so, the tape  220   a  supplied toward the tape guide  250  from he first roller  230  is slanted to one side, and can be smoothly guided by a slant surface  272  of the rotational ring  270 . That is, as shown in FIGS. 9 and 10, the lower end of the correction material coated ape  220   a  is guided by the rotational ring  270  and supplied toward the tape guide  250 , while the correction material removed tape  220   b  is guided by the protrusion  262  positioned in the upper side of the rotational ring  270 , and supplied toward the second roller  240 . When the rotational ring  270  is employed, the fixing pole  213  installed in the case  210  can be removed. That is, a situation where the case  210  cannot be used due to a broken fixing pole  213  can no longer occur. It is apparent that the rotational ring  20  can be applied to the third cog wheel  260  as shown in FIGS. 7 and 8.