Abstract:
A compression-type wastebasket includes: a body which has an opened upper part and a space formed therein in order to accommodate a garbage bag; a body cover which is configured to cover the upper part of the body, wherein an opening unit for connecting the inside and the outside of the body is formed on the central part thereof, a bag fixing unit is formed along the outer girth of the opening unit to fix the girth of an inlet end portion of the garbage bag, and a gripping unit is formed on a part of the opening unit; and a compression means which has a compression surface capable of entering the opening unit in order to compress the waste contained within the body, and is configured to be gripped on the gripping unit while rotating at a predetermined angle on the basis of a compression direction in the opening unit.

Description:
REFERENCE TO RELATED APPLICATIONS 
       [0001]    This is a continuation of pending International Patent Application PCT/KR2010/008719 filed on Dec. 7, 2010, which designates the United States and claims priority of Korean Patent Application No. 10-2010-0050698 filed on May 29, 2010, the entire contents of which are incorporated herein by reference. 
     
    
     FIELD OF THE INVENTION 
       [0002]    The present invention relates to a compression-type wastebasket, and more particularly, to a compression-type wastebasket that is capable of compressing waste in a garbage bag mounted thereinto and tying the garbage bag in the state where the waste has been compressed so as to remove the garbage bag therefrom. 
       BACKGROUND OF THE INVENTION 
       [0003]    So as to reduce a quantity of waste generated from households, generally, separate garbage bags are made and sold by self-governing bodies in many regions. 
         [0004]    Since the garbage bags currently used are charged, accordingly, most of users forcedly push a large amount of waste into the garbage bags to reduce the number of garbage bags consumed. In this state, however, it is not easy to tie the garbage bag, and further, since the garbage bag is made of relatively thin vinyl, it is torn with ease. 
         [0005]    To solve the above-mentioned problems, thus, a variety of wastebaskets in which the compression for the waste charged in the garbage bag is carried out have been proposed and supplied in the market. According to the conventional compressible wastebaskets, an inside casing is first inserted into the garbage bag, and an outside casing is then fitted around the garbage bag. Next, a cover is pressed to compress the waste in the inside casing. 
         [0006]    If the inside casing inserted into the garbage bag is drawn to remove the garbage bag after the use from the wastebasket, the waste attached to or contacted with the inside casing is drawn together with the inside casing. Accordingly, the compressed waste becomes swollen or exceeds over the garbage bag. 
         [0007]    Even when the upper portion of the garbage bag is tied up to throw the garbage bag away, further, the waste should be kept compressed. According to the conventional compressible wastebaskets, however, the compressed waste is restored to its original state in the process of tying the garbage bag, thereby making it difficult to tie the garbage bag and further reducing the compression effects of the waste. 
       SUMMARY OF THE INVENTION 
       [0008]    Accordingly, the present invention has been made in view of the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a compression-type wastebasket that is capable of compressing waste in a garbage bag mounted thereinto and tying the garbage bag in the state where the waste has been compressed. 
         [0009]    It is another object of the present invention to provide a compression-type wastebasket that is capable of compressing waste in a garbage bag mounted thereinto even though the quantity of waste exceeds the capacity of the garbage bag, thereby economically reducing the number of garbage bags used. 
         [0010]    To accomplish the above objects, according to a first aspect of the present invention, there is provided a compression-type wastebasket including: a body having a space formed thereinto to accommodate a garbage bag thereinto in such a manner as to be open at the upper portion thereof; a cover adapted to cover the upper portion of the body and having an opening unit formed at the center thereof in such a manner as to allow the inside of the body to communicate with the outside, a bag fixing unit formed along the outer periphery of the opening unit to fix the periphery of the inlet end portion of the garbage bag, and a gripping unit formed on a portion of the opening unit; and a compression means having a compression surface adapted to freely enter the opening unit to compress the waste charged into the garbage bag, the compression means adapted to be engaged with the gripping unit when rotated to a given angle around a compression direction on the opening unit. 
         [0011]    According to the present invention, preferably, the gripping unit is formed of gripping protrusions protruded toward the center of the opening unit from the portions of the inner periphery of the opening unit, and the compression means has gripping grooves into which the gripping protrusions are fittedly inserted, thereby being engaged with the gripping unit. 
         [0012]    According to the present invention, preferably, the gripping unit is formed of gripping grooves formed on the portions of the inner periphery of the opening unit, and the compression means has gripping protrusions adapted to be fittedly inserted into the gripping grooves, thereby being engaged with the gripping unit. 
         [0013]    According to the present invention, preferably, the bag fixing unit includes: a round bag fixing rim protruded from the outer periphery of the opening unit; and a round fastening rim adapted to be fastened to the bag fixing rim in such a manner as to fix the periphery of the inlet end portion of the garbage bag thereto. 
         [0014]    According to the present invention, preferably, the cover includes: a cover plate mounted on the upper side of the body; and an upper casing mounted on the upper side of the cover plate, and the bag fixing unit includes: a portion of the upper casing; and a fastening member adapted to be fastened to the portion of the upper casing. 
         [0015]    According to the present invention, preferably, the fastening member is fastened to the portion of the upper casing by means of spiral coupling. 
         [0016]    To accomplish the above objects, according to a second aspect of the present invention, there is provided a compression-type wastebasket including: a frame; an upper body adapted to be mounted on the frame and having an opening unit formed at the center thereof, a bag fixing unit formed along the outer periphery of the opening unit to fix the periphery of the inlet end portion of a garbage bag, and a gripping unit formed on a portion of the opening unit; and a compression means having a compression surface adapted to freely enter the opening unit to compress the waste charged into the garbage bag, the compression means adapted to be engaged with the gripping unit when rotated to a given angle around a compression direction on the opening unit. 
         [0017]    According to the present invention, preferably, the gripping unit is formed of gripping protrusions protruded toward the center of the opening unit from the portions of the inner periphery of the opening unit, and the compression means has gripping grooves into which the gripping protrusions are fittedly inserted, thereby being engaged with the gripping unit. 
         [0018]    According to the present invention, preferably, the gripping unit is formed of gripping grooves formed on the portions of the inner periphery of the opening unit, and the compression means has gripping protrusions adapted to be fittedly inserted into the gripping grooves, thereby being engaged with the gripping unit. 
         [0019]    According to the present invention, preferably, the upper body has an upper casing, and the bag fixing unit has a portion of the upper casing; and a fastening member adapted to be fastened to the portion of the upper casing. 
         [0020]    To accomplish the above objects, according to a third aspect of the present invention, there is provided a compression-type wastebasket including: a body having a space formed thereinto to accommodate a garbage bag thereinto, an opening unit formed on the upper portion thereof, and a gripping unit formed along a portion of the opening unit; a cover having a shape of a casing communicating with the opening unit in such a manner as to cover the upper portion of the body and having a bag fixing unit adapted to be fastened to the periphery of the opening unit to fix the periphery of the inlet end portion of the garbage bag; and a compression means having a compression surface adapted to freely enter the opening unit to compress the waste charged into the garbage bag, the compression means adapted to be engaged with the gripping unit when rotated to a given angle around a compression direction on the opening unit. 
         [0021]    According to the present invention, preferably, the gripping unit is formed of gripping protrusions protruded toward the center of the opening unit from the portions of the inner periphery of the opening unit, and the compression means has gripping grooves into which the gripping protrusions are fittedly inserted, thereby being engaged with the gripping unit. 
         [0022]    According to the present invention, preferably, the gripping unit is formed of gripping grooves formed on the portions of the inner periphery of the opening unit, and the compression means has gripping protrusions adapted to be fittedly inserted into the gripping grooves, thereby being engaged with the gripping unit. 
         [0023]    According to the present invention, preferably, the portions where the gripping protrusions and the gripping grooves are engaged with each other are formed in pairs at the positions facing each other. 
         [0024]    According to the present invention, preferably, the compression means has semi-circular both side portions separated by means of a cutting portion having a given width, and the semi-circular both side portions are fixed rigidly by means of a support member disposed on the top surfaces thereof in such a manner as to be engaged at both sides thereof with the gripping unit. 
         [0025]    According to the present invention, the compression-type wastebasket has the following advantages: 
         [0026]    First, the engaged state of the compression means with the cover or the body is maintained, so that the waste can be kept compressed at the time when the inlet end portion of the garbage bag is tied up, thereby making it convenient to tie the tying portions of the garbage bag and providing a high compression efficiency to increase the quantity of waste charged in the garbage bag. 
         [0027]    Second, the round fastening rim or the fastening member is fittedly or spirally coupled to the upper casing, and the inlet end portion of the garbage bag is fixedly fitted to a portion where the coupling is formed, thereby making it easy to fix the garbage bag to the compression-type wastebasket. 
         [0028]    Third, the compression-type wastebasket according to the claim  8 , which is capable of tying the garbage bag in the state of compressing the waste charged in the garbage bag mounted thereinto, is configured without any separate body, thereby making the whole configuration very simple. 
         [0029]    Last, the portions where the gripping protrusions and the gripping grooves are engaged with each other are formed in pairs at the positions facing each other, thereby stably maintaining the engagement state. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0030]      FIG. 1  is a perspective view showing a compression-type wastebasket according to a first embodiment of the present invention. 
           [0031]      FIG. 2  is a sectional view showing the compression-type wastebasket according to the first embodiment of the present invention. 
           [0032]      FIGS. 3   a  to  3   c  are perspective views showing various coupling structures between a compression plate and an auxiliary compression plate of a compression means according to the first embodiment of the present invention. 
           [0033]      FIGS. 4   a  and  4   b  are top views showing the operations where the compression means is engaged with gripping protrusions of a cover plate according to the first embodiment of the present invention. 
           [0034]      FIGS. 5   a  and  5   b  are exemplary views showing the kinds of the garbage bags mounted in the compression-type wastebasket of the present invention. 
           [0035]      FIGS. 6   a  to  6   h  are sectional views showing the usage processes of the compression-type wastebasket according to the first embodiment of the present invention applied to the garbage bag of  FIG. 5   a.    
           [0036]      FIGS. 7   a  to  7   h  are sectional views showing the usage processes of the compression-type wastebasket according to the first embodiment of the present invention applied to the garbage bag of  FIG. 5   b.    
           [0037]      FIG. 8  is a sectional view showing one of the variations of the compression-type wastebasket according to the first embodiment of the present invention. 
           [0038]      FIG. 9  is a perspective view showing another variation of the compression-type wastebasket according to the first embodiment of the present invention. 
           [0039]      FIG. 10  is a sectional view showing the compression-type wastebasket of  FIG. 9 . 
           [0040]      FIG. 11  is a perspective view showing a compression-type wastebasket according to a second embodiment of the present invention. 
           [0041]      FIG. 12  is a sectional view showing the compression-type wastebasket according to the second embodiment of the present invention. 
           [0042]      FIGS. 13   e  to  13   g  are sectional views showing the usage processes of the compression-type wastebasket according to the second embodiment of the present invention. 
           [0043]      FIG. 14  is a perspective view showing one of variations of the compression-type wastebasket according to the second embodiment of the present invention. 
           [0044]      FIG. 15  is a sectional view showing the compression-type wastebasket of  FIG. 14 . 
           [0045]      FIG. 16  is a perspective view showing a compression-type wastebasket according to a third embodiment of the present invention. 
           [0046]      FIG. 17  is a sectional view showing the compression-type wastebasket according to the third embodiment of the present invention. 
           [0047]      FIG. 18  is a perspective view showing one of variations of the compression-type wastebasket according to the third embodiment of the present invention. 
           [0048]      FIG. 19  is a sectional view showing the compression-type wastebasket of  FIG. 18 . 
           [0049]      FIG. 20  is a perspective view showing one of variations of the compression means in the compression-type wastebasket according to the third embodiment of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0050]    Hereinafter, an explanation on a compression-type wastebasket according to preferred embodiments of the present invention will be given with reference to the attached drawings. 
         [0051]      FIG. 1  is a perspective view showing a compression-type wastebasket according to a first embodiment of the present invention, and  FIG. 2  is a sectional view showing the compression-type wastebasket according to the first embodiment of the present invention. 
         [0052]    Referring to  FIGS. 1 and 2 , a compression-type wastebasket according to the first embodiment of the present invention largely includes a body  110 , a cover  120  for covering the body  110 , and a compression means  50  adapted to compress the waste charged into the body  110 . 
         [0053]    The body  110  has a given shape capable of accommodating a garbage bag thereinto. Further, the body  110  has a space formed thereinto to correspond to the capacity of a garbage bag accommodated thereinto and is open at the upper portion thereof. The body  110  is desirably formed of a single cylindrical casing whose bottom is closed, but it may have a multiple-angled section or a separable bottom portion. Only if the body  110  accommodates the garbage bag thereinto, the body  110  has no limitation where the inside space should be separated from the outside space. Accordingly, a plurality of bar-shaped members may be mounted circumferentially to support the cover  120  thereagainst. Furthermore, the plurality of bar-shaped members may be replaced with a plurality of arch-shaped members to take a generally cylindrical shape. 
         [0054]    The cover  120  largely includes a cover plate  130 , a round fastening rim  140  and an upper casing  150 . 
         [0055]    The cover plate  130  has an opening unit  123  formed at the center thereof, through which the waste is put, and a bag fixing unit is formed along the outer periphery of the opening unit  123 . In more detail, the bag fixing unit is formed of a round bag fixing rim  135  protruded upwardly from the cover plate  130 , and the bag fixing rim  135  is fastened to the round fastening rim  140  as will be discussed later. 
         [0056]    Further, a round upper casing fixing protrusion  134  is formed along the outer periphery of the bag fixing rim  135 , and a round body fixing rim  131  is formed along the outer periphery of the upper casing fixing protrusion  134  in such a manner as to be fitted to the top end periphery of the body  110 . 
         [0057]    The opening unit  123  formed inside the bag fixing rim  135  has a gripping unit  137  formed therealong, with which the compression means  50  as will be explained later is engaged to fixedly grip the inlet end portion of the garbage bag. 
         [0058]    Desirably, the gripping unit is formed of a pair of gripping protrusions protruded toward the center of the opening unit  123  from a portion of the periphery thereof. Further, the pair of gripping protrusions  137  faces each other, which allows the compression means  50  to be more stably engaged therewith. 
         [0059]    Accordingly, the compression means  50  has gripping grooves  57  into which the gripping protrusions  137  are fittedly inserted. Thus, the inlet end portion of the garbage bag is tightly fitted between the gripping protrusions  137  and the gripping grooves  57 , further preventing escaping by means of the friction force therebetween. 
         [0060]    Of course, the positions of the gripping protrusions  137  and the gripping grooves  57  may be changed to each other, so that the gripping protrusions  137  are formed on the compression means  50  and the gripping grooves  57  on the cover plate  130 . 
         [0061]    On the other hand, the round fastening rim  140  is formed of a rubber or a soft synthetic resin and has a groove formed on the underside thereof so as to fit the bag fixing rim  135  thereto. Accordingly, in a state where the inlet end portion of the garbage bag is covered on the bag fixing rim  135 , the round fastening rim  140  is fastened to the bag fixing rim  135  to fix the inlet end portion of the garbage bag. 
         [0062]    The upper casing  150  is fixedly fitted to the upper casing fixing protrusion  134  formed on the cover plate  130 . The upper casing  150  includes an outside casing portion  151  and a guide casing portion  152  formed inside the outside casing portion  151 . In this case, the outside casing portion  151  is fixedly fitted to the upper casing fixing protrusion  134 . The outside casing portion  151  serves to prevent the inlet end portion of the garbage bag exposed to the outside of the opening unit  123  from being observed to the outside, thereby providing a clean outer appearance. That is, a given space  158  is formed between the outside casing portion  151  and the guide casing portion  152 , into which the end portion of the garbage bag is located, thereby preventing the end portion of the garbage bag from being seen to the outside. 
         [0063]    The guide casing portion  152  is located inside the round fastening rim  140  and has a tapered portion expanded upwardly, thereby guiding the waste to the opening unit  123 . The tapered portion of the guide casing portion  152  has a plurality of stepped protrusions  157  like stairs formed therealong. A deodorant agent is sprayed on the stepped protrusions  157  and stays thereon, without any application to the interior of the wastebasket, thereby obtaining the deodorizing effects for a long period of time. 
         [0064]    Desirably, the cover  120  has a separate upper cover  160  mounted on the top end portion thereof. The upper cover  160  has a grasping portion  165  formed at the center thereof in a shape of a casing having a small diameter in such a manner as to be grasped by a user&#39;s hand to open the upper cover  160 . The grasping portion  165  has a separate cap  164  mounted thereon and a net  166  mounted on the underside thereof. Accordingly, a sterilizer or deodorant agent is sprayed into the cap  164  and diffused into the body  110  through the net  166 . 
         [0065]    On the other hand, the compression means  50  has a compression plate  51  on which a compression surface is formed, an auxiliary compression plate  52 , a compression bar  53  and a handle  54 . 
         [0066]    The compression plate  51  is of a round plate having a sectional area freely entering the opening unit  123  of the cover  120 . Instead of the round plate, of course, the compression plate  51  may have various shapes. Further, the compression plate  51  has gripping grooves  57  formed along the outer periphery thereof in such a manner as to be fitted to the gripping protrusions  137  formed on the opening unit  123  of the cover  120 . As shown in the section taken along the line X-X of  FIG. 2 , the periphery of the compression plate  51  is divided into portions  56  where the gripping grooves  57  are formed and portions  55  where the gripping grooves  57  are not formed. This causes the fitting to occur when the compression plate  51  is rotated to a given angle. The operation will be explained next. The portions where the gripping protrusions  137  and the gripping grooves  57  are engaged with each other are desirably formed in pairs at the positions facing each other. 
         [0067]    The compression plate  51  is used to tie the inlet end portion of the garbage bag if it is desired to throw the garbage bag away. Moreover, the auxiliary compression plate  52  is used to compress the waste in the state where the garbage bag disposed in the wastebasket of the invention, whenever the compression is needed. The auxiliary compression plate  52  has a relatively small compression surface, so that it can easily enter the opening unit  123  and compress the waste against the garbage bag.  FIGS. 3   a  to  3   c  are perspective views showing various coupling structures between the compression plate  51  and the auxiliary compression plate  52  of the compression means  50  according to the first embodiment of the present invention. 
         [0068]    On the other hand,  FIGS. 4   a  and  4   b  are top views showing the operations where the compression means  50  is fitted to the gripping protrusions of the cover plate  130  according to the first embodiment of the present invention. 
         [0069]      FIG. 4   a  shows the state where the compression plate  51  of the compression means  50  is positioned into the opening unit  123  of the cover  120 . The portions  56  of the compression plate  51  where the gripping grooves  57  are formed are inserted into the space of the opening unit  123  where the gripping protrusions  137  are not formed, thereby locating the gripping protrusions  137  and the gripping grooves  57  on the same plane as each other. At this time, the inlet end portion of the garbage bag is exposed through the opening unit  123  and is spread outwardly from the periphery of the opening unit  123 . That is,  FIG. 4   a  shows the state where the inlet end portion of the garbage bag is fitted to the gap between the cover plate  130  and the compression plate  51 . 
         [0070]    After that, as shown in  FIG. 4   b,  if the compression plate  51  is rotated around the compression bar  53 , the gripping protrusions  137  are fitted to the gripping grooves  57  and engaged with each other. Accordingly, the inlet end portion of the garbage bag is fitted between the gripping protrusions  137  and the gripping grooves  57 , so that it does not fall down by means of the friction force occurring through the fitting. 
         [0071]    Under the above-mentioned operation, a method for using the garbage bag through the compression-type wastebasket according to the first embodiment of the present invention will be explained. 
         [0072]      FIGS. 5   a  and  5   b  are exemplary views showing the kinds of the garbage bags mounted in the compression-type wastebasket of the present invention. 
         [0073]      FIG. 5   a  shows a garbage bag B having four tying portions B 1  and B 2  formed on the inlet end portion thereof, and  FIG. 5   b  shows a garbage bag C having a tying string C 1  embedded along the inlet end portion thereof, such that if the tying string C 1  pulls, the inlet end portion of the garbage bag is tied. 
         [0074]    First, as shown in  FIG. 5   a,  a state will be explained wherein the garbage bag B having the four tying portions B 1  and B 2  formed on the inlet end portion thereof is applied to the compression-type wastebasket of the present invention. 
         [0075]    As shown in  FIG. 6   a,  in a state where the upper casing  150  is separated from the body  110  the garbage bag B is insertedly put into the body  110 . At this time, the inlet end portion of the garbage bag B, that is, the tying portions B 1  and B 2  are exposed through the opening unit  123  of the cover  120  and next spread outwardly from the periphery of the opening unit  123 . 
         [0076]      FIG. 6   b  shows the process wherein after the round fastening rim  140  is fastened to the bag fixing rim  135  of the cover plate  140  in the state where the garbage bag B has been mounted on the wastebasket, the body  110  is coupled to the upper casing  150 . The fastening of the round fastening rim  140  enables the inlet end portion of the garbage bag B to be rigidly fixed, and the upper casing  150  is thus coupled to the fixed portion of the garbage bag B. Accordingly, the exposed portion of the inlet end portion of the garbage bag B to the upper portion of the cover  130  is located between the outside casing portion  151  and the guide casing portion  152  of the upper casing  150  and thus not exposed to the outside. 
         [0077]      FIG. 6   c  shows the state where waste is charged up to the guide casing portion  152  of the upper casing  150  after the upper casing  150  has been mounted. 
         [0078]    After that, if the waste is charged fully to the guide casing portion  152 , it is compressed by means of the auxiliary compression plate  52  or the compression plate  51  on which the handle  53  is mounted, as shown in  FIG. 6   d.  The compression is carried whenever needed while the wastebasket is being used. 
         [0079]      FIG. 6   e  shows the process where the waste is maintained in the state of being compressed before the garbage bag B is tied. In the state where the compression plate  51  is pushed into the wastebasket to compress the waste thereinto, the compression plate  51  is rotated to a given angle and thus fitted to the cover plate  130 . 
         [0080]    wow  FIG. 6   f  shows the state where the upper casing  150  and the round fastening rim  140  are removed from the body  110  after the compression plate  51  has compressed the waste and next, the garbage bag B is tied up one time. Even though the round fastening rim  140  is removed before the garbage bag B is tied up one time, the inlet end portion of the garbage bag B is fitted between the gripping grooves  57  of the compression plate  51  and the gripping protrusions  137  of the cover plate  130 , so that it does not fall down by means of the friction force occurring through the fitting. After the garbage bag B has been tied up one time, the compression plate  51  is rotated to release the fitting state. 
         [0081]    After that, as shown in  FIG. 6   g,  the compression plate  51  is removed in the state where the cover plate  130  has been removed. If the two tying portions B 1  are tied up and the remaining two tying portions B 2  are not tied up, first, a free space portion is formed through the two tying portions B 2  not tied up yet. The compression plate  51  is twistedly moved in left and right sides in the free space portion and thus drawn from the garbage bag B. At this time, the compressed state of the waste can be maintained through the two tying portions B 1  already tied up. 
         [0082]    Finally, as shown in  FIG. 6   h,  the remaining two tying portions B 2  are tied up, and the garbage bag B is drawn from the body  110  of the wastebasket. 
         [0083]    Next, as shown in  FIG. 5   b,  a state will be explained wherein the garbage bag C having the tying string C 1  is applied to the compression-type wastebasket of the present invention. 
         [0084]    When compared with the method for using the garbage bag B as mentioned above, the processes of  FIGS. 7   a  to  7   e  are the same as those in the garbage bag B, but the processes of  FIGS. 7   f,    7   g  and  7   h  are different from those in the garbage bag B. 
         [0085]    Referring to  FIGS. 7   f,    7   g  and  7   h,  therefore, the differences will be explained. 
         [0086]      FIG. 7   f  shows the state where the upper casing  150  and the round fastening rim  140  are removed from the body  110  after the compression plate  51  has compressed the waste and next, the tying string C 1  of the garbage bag C is somewhat pulled. 
         [0087]    After that, as shown in  FIG. 7   g,  the compression plate  51  is removed in the state where the cover plate  130  has been removed. Since the tying string C 1  of the garbage bag C is somewhat pulled in  FIG. 7   f,  a space portion exists on the inlet end portion of the garbage bag C, through which the compression plate  51  is escaped. Accordingly, the compression plate  51  is twistedly moved in left and right sides in the space portion and thus drawn from the garbage bag C. At this time, the compressed state of the waste can be maintained since the tying string C 1  of the garbage bag C is somewhat pulled. 
         [0088]    Finally, as shown in  FIG. 7   h,  the tying string C 1  is completely pulled to tie the inlet end portion of the garbage bag C and is tied up at both ends thereof. Next, the garbage bag C is drawn from the body  110  of the wastebasket. 
         [0089]    On the other hand,  FIG. 8  shows one of the variations of the compression-type wastebasket according to the first embodiment of the present invention, wherein a relatively small capacity garbage bag can be mounted into the wastebasket. 
         [0090]      FIG. 8  has a difference from the first embodiment of the present invention, in that the wastebasket is provided with an upper casing fixing protrusion  134 ′, a body fixing rim  131 ′ and a body base plate  112  separable from the underside of the body  110 . 
         [0091]    The upper casing fixing protrusion  134 ′ is formed having an insertion groove along which a small capacity body is fitted, which serves to fix the small capacity body together with an insertion groove  114  formed on the underside of the body base plate  112 . 
         [0092]    The insertion groove  114  formed on the underside of the body base plate  112  has a round shape having a small diameter. Accordingly, if it is desired to use the small capacity body, the body base plate  112  is turned over to face the insertion groove of the upper casing fixing protrusion  134 ′, and the body is then mounted. 
         [0093]    Further, the body fixing rim  131 ′ of a cover plate  130 ′ has an insertion groove formed therealong so as to more stably support the body  110 ′, and a groove  113  is formed along the corresponding portion of the body base plate  112  thereto. 
         [0094]    On the other hand,  FIG. 9  is a perspective view showing another variation of the compression-type wastebasket according to the first embodiment of the present invention, and  FIG. 10  is a sectional view showing the compression-type wastebasket of  FIG. 9 . 
         [0095]    Referring to  FIGS. 9 and 10 , the round fastening rim  140  in the first embodiment of the present invention is not coupled to the bag fixing rim  135 , but it is screw-coupled to the outer periphery of the lower portion of the guide casing portion  152 . Further, the round fastening rim  140  in the first embodiment of the present invention becomes a fastening member  140 ′ having an opening portion as a round through hole formed at the center thereof and a square or polygonal outer shape formed around the opening unit. Accordingly, the outer periphery of the lower portion of the guide casing portion  152  and the inner periphery of the fastening member  140 ′ have spirals formed therealong, so that the guide casing portion  152  and the fastening member  140 ′ are coupled to each other, and in the coupling state, the fastening member  140 ′ is seated in a square seating space portion  138  formed on a cover plate  130 ′. The formation of the square seating space portion  138  permits the seating space portion  138  to be fixed to the fastening member  140 , without any rotation together with the fastening member  140 ′ when the guide casing portion  152  is separated from the fastening member  140 ′ spirally-coupled thereto. 
         [0096]    When the outer periphery of the lower portion of the guide casing portion  152  and the inner periphery of the fastening member  140 ′ are spirally coupled to each other, in this variation, the inlet end portion of the garbage bag is fixedly fitted to the portion where the guide casing portion  152  and the fastening member  140 ′ are spirally coupled to each other. In the fixed state, the garbage bag is normally used. 
         [0097]    The above-mentioned fixing structure of the inlet end portion of the garbage bag B is different from that in the first embodiment of the present invention, but the other configurations and operations are the same as in the first embodiment of the present invention. 
         [0098]    Next, an explanation on a compression-type wastebasket according to a second embodiment of the present invention will be given. 
         [0099]      FIGS. 11 and 12  show the compression-type wastebasket according to the second embodiment of the present invention. 
         [0100]    According to the second embodiment of the present invention, gripping protrusions  237  engaged with a compression means  50  are formed on a fastening member  240 . Accordingly, a compression plate  51  of the compression means  50  is engaged with the gripping protrusions  237  of the fastening member  240 . 
         [0101]    The fastening member  240  is of a square shape, so that it can be seated into a square seating space portion  238 , in the same manner as shown in  FIGS. 9 and 10 . Further, the fastening member  240  has a spiral portion  248  formed on the inner periphery thereof in such a manner as to be coupled to a spiral portion formed on the outer periphery of the lower portion of a guide casing portion  252  of an upper casing  250 . 
         [0102]    According to the second embodiment of the present invention, if it is desired to mount the garbage bag B, first, the fastening member  240  is seated into the square seating space portion  238  formed on a cover plate  230 . After that, the inlet end portion of the garbage bag B is exposed to the outside through an opening unit  233  and well spreads out on the top surface of the fastening member  240 . In this state, the guide casing portion  252  of the upper casing  250  is spirally-coupled to the fastening member  240 , so that the inlet end portion of the garbage bag B is fixedly fitted to the portion where the guide casing portion  252  and the fastening member  240  are spirally-coupled to each other. Of course, after the guide casing portion  252  and the fastening member  240  are spirally coupled to each other to allow the inlet end portion of the garbage bag B to be located therebetween, the guide casing portion  252  and the fastening member  240  may be located into the square seating space portion  238 . 
         [0103]    On the other hand,  FIGS. 13   e  to  13   g  are sectional views showing a method for tying a garbage bag B through the compression-type wastebasket according to the second embodiment of the present invention. The figures show the processes corresponding to  FIGS. 6   e  to  6   g.    
         [0104]      FIG. 13   e  shows the process where the compression plate  51  is rotated to a given angle with respect to a compressing direction in the state where the waste in the garbage bag B is compressed by means of the compression plate  51 . Accordingly, the compression plate  51  is engaged with the gripping protrusions  247  of the fastening member  240 . In this state, the inlet end portion of the garbage bag B is fixedly fitted between the gripping protrusions  247  of the fastening member  240  and the gripping grooves  57  of the compression plate  51 . 
         [0105]    After that, as shown in  FIG. 13   f,  the upper casing  250  is rotated to permit the guide casing portion  252  to be separated from the spiral portion  248  of the fastening member  240 . Even though the gripping state of the inlet end portion of the garbage bag B is released through the separation of the guide casing portion  252  from the fastening member  240 , the lower portion of the inlet end portion of the garbage bag B is fixedly fitted between the gripping protrusions  247  of the fastening member  240  and the gripping grooves  57  of the compression plate  51 . Accordingly, the inlet end portion of the garbage bag B is not escaped downwardly. After the upper casing  250  is separated, the two tying portions of the garbage bag B are tied up one time. 
         [0106]    After that, as shown in  FIG. 13   g,  the compression plate  51  is rotated to release the gripping state of the garbage bag B, and the compression plate  51  is twistedly moved in left and right sides in the free space portion formed through the two tying portions not tied up yet. Next, the two tying portions not tied up yet are tied up to get the garbage bag B out of the wastebasket. 
         [0107]    Even if the garbage bag C as shown in  FIG. 5   b  is used, the guide casing portion  252  is separated from the fastening member  240  to release the gripping state of the inlet end portion of the garbage bag C, so that the lower portion of the inlet end portion of the garbage bag C is fixedly fitted between the gripping protrusions  247  of the fastening member  240  and the gripping grooves  57  of the compression plate  51 . In this case, accordingly, the processes as shown in  FIGS. 7   e  to  7   g  are still carried out. 
         [0108]      FIGS. 14 and 15  show one of variations of the compression-type wastebasket according to the second embodiment of the present invention. 
         [0109]    In the variation, the body  210  is changed into a leg member  215 , and a cover  220 ′ includes a frame  230 ′, a fastening member  240  seated into the frame  230 ′, and an upper casing  250 ′ spirally coupled to the fastening member  240 . The fastening member  240  is the same as in the second embodiment of the present invention, and the upper casing  250 ′ is formed by removing only the outside casing portion in the second embodiment of the present invention. The fastening member  240  and the upper casing  250 ′ constitute the upper body in the variation of the second embodiment. 
         [0110]    The frame  230 ′ is of a square or polygonal shape, and the upper casing  250 ′ to which the fastening member  240  is coupled is mounted supportedly on the frame  230 ′. 
         [0111]    According to this variation, advantageously, the compression-type wastebasket becomes very simple in configuration. 
         [0112]    The methods for mounting the garbage bag B and removing the garbage bag B in the state where the waste is compressed are the same as those in the second embodiment of the present invention. 
         [0113]    Next, an explanation on a compression-type wastebasket according to a third embodiment of the present invention will be given. 
         [0114]      FIGS. 16 and 17  show the compression-type wastebasket according to the third embodiment of the present invention. According to the third embodiment of the present invention, the gripping protrusions  317  engaged with the gripping grooves  57  of the compression plate  51  are formed on a body  310 . 
         [0115]    The body  310  becomes concavedly small on the upper portion thereof to form an opening unit  313 , so that the garbage bag B located at the inside of the body  310  cannot be drawn upwardly. Accordingly, so as to draw the garbage bag B after used from the lower portion of the body  310 , the body  310  is open at the lower portion thereof. The open lower portion of the body  310  is closed by means of a base casing  312 . 
         [0116]    The cover  320  includes a guide casing portion  322  and a cover casing portion  321  located under the guide casing portion  322 , and further has a concave waist portion formed between the guide casing portion  322  and the cover casing portion  321 . 
         [0117]    The waist portion of the cover  320 , that is, the concave portion formed by connecting the guide casing portion  322  and the cover casing portion  321  has a spiral portion  326  formed thereon in such a manner as to be coupled to a spiral portion  316  formed on the outer periphery of the top end portion of the body  310 . Accordingly, the cover  310  and the body  310  are spirally coupled to each other at the waist portion of the cover  320 . 
         [0118]    Further, in the spirally coupled portion between the cover  320  and the body  310 , as shown in the enlarged portion of  FIG. 17 , the inlet end portion of the garbage bag B is fixedly fitted between the spiral portion  326  of the cover  320  and the spiral portion  316  of the body  310 . Accordingly, when the compression-type wastebasket according to the third embodiment of the present invention is normally used, the inlet end portion of the garbage bag B is used in the state of being fixed thereto. 
         [0119]    The cover casing portion  321  is adapted to cover the upper portion of the body  310 , while covering the exposed portion of the garbage bag B located between the body  310  and the cover casing portion  321 , thereby providing a good outer appearance of the compression-type wastebasket. 
         [0120]    According to the third embodiment of the present invention, in the same manner as above, in the state where the gripping grooves  57  of the compression plate  51  are engaged with the gripping protrusions  317  of the body  310 , the garbage bag B can be tied up. That is, in the state where the compression plate  51  is engaged with the body  310 , the cover  320  is rotated to release the spiral coupling with the body  310 , and thus, the cover  320  is removed. After that, two tying portions of the garbage bag B are tied up. Next, the compression plate  51  is rotated to release the gripping state and then removed. Further, the remaining two tying portions are tied up, and the base casing  312  of the body  310  is removed to draw the garbage bag B from the body  310 . 
         [0121]      FIGS. 18 and 19  show one of variations of the compression-type wastebasket according to the third embodiment of the present invention. 
         [0122]    In this variation, a cover  320 ′ has a separate fastening member  325  located between a guide casing portion  322 ′ and the body  310 , and a spiral portion  328  of the fastening member  325  is spirally coupled to a spiral portion  329  of the guide casing portion  322 ′. As shown in the enlarged portion of  FIG. 19 , at the time when the spiral portions  328  and  329  are spirally coupled to each other, the inlet end portion of the garbage bag B is fixedly fitted between the spiral portions  328  and  329 . 
         [0123]    In the state where the fastening member  325  and the guide casing portion  322 ′ are spirally coupled to each other to allow the inlet end portion of the garbage bag B is fixedly fitted between the spiral portions  328  and  329 , they are seated on the upper portion of the body  310 . At this time, fixing grooves  318  are formed along the top periphery of the body  310  in such a manner as to insert fixing protrusions  326  of the fastening member  325  thereinto. Accordingly, the fastening member  325  can be stably fixed, and in the process where the guide casing portion  322 ′ spirally coupled to the fastening member  325  is rotated and removed, the fastening member  325  can be maintained in the fixed state to the body  310 . 
         [0124]    The fastening member  325  becomes gradually enlarged to surround the lower portion of the guide casing portion  322 ′. Accordingly, the inlet end portion of the garbage bag B is located between the lower portion of the guide casing portion  322 ′ and the gradually enlarged portion of the fastening member  325 , thereby preventing the garbage bag B from being exposed to the outside. 
         [0125]    In this variation, the gripping protrusions  317  are formed on the opening unit  313  of the body  310 , and the method for using the compression-type wastebasket is the same as the above-mentioned embodiments. 
         [0126]    On the other hand,  FIG. 20  is a perspective view showing one of variations of the compression means in the compression-type wastebasket according to the third embodiment of the present invention. 
         [0127]    In this variation, a compression means  50 ′ has semi-circular both side portions separated by means of a cutting portion  58  having a given with formed in the middle portion thereof. The semi-circular both side portions are fixed rigidly by means of a support member  59  disposed on the top surfaces thereof. Accordingly, the given width of the cutting portion  58  can be always maintained constantly. The support member  59  also serves as a handle taken by a user&#39;s hand. Further, gripping grooves  57 ′ are formed correspondingly on the semi-circular both side portions of the compression means  50 ′, thereby gripping the inlet end portion of the garbage bag. 
         [0128]    In case of using such compression means  50 ′, the two tying portions B 1  of the four tying portions of the garbage bag as shown in  FIG. 5   a  are located at both end portions of the cutting portion  58 , and the remaining two tying portions B 2  are located at both side portions where the gripping grooves  57 ′ are formed, thereby fixing the garbage bag B. 
         [0129]    If it is desired to tie the garbage bag up to remove the garbage bag B from the compression-type wastebasket, in the same manner as in the above-mentioned embodiments, the gripping protrusions are engaged with the gripping grooves  57 ′ of the compression means  50 ′. After that, the two tying portions B 1  located at both sides of the cutting portion  58  pull and move toward each other along the cutting portion  58 , and next, they are tied up under the support member  59 . Accordingly, the tying portions B 1  are rigidly tied up, and the tying operation can be easily carried out even in the state where the waste in the garbage bag B is excessively charged. 
         [0130]    After that, the compression means  50 ′ is rotated and removed, and the remaining two tying portions B 2  are tied up. 
         [0131]    While the present invention has been described with reference to the particular illustrative embodiments, it is not to be restricted by the embodiments but only by the appended claims. It is to be appreciated that those skilled in the art can change or modify the embodiments without departing from the scope and spirit of the present invention. 
       INDUSTRIAL APPLICABILITY 
       [0132]    The compression-type wastebasket according to the present invention is capable of efficiently charging waste into the garbage bag mounted thereinto, thereby enhancing the utilization of the garbage bag, and therefore, the compression-type wastebasket can be used in various places like houses, offices and so on.