Patent Abstract:
A cartridge type liquid feeding container is capable of being used by refilling or replacing a liquid instead of throwing away the container itself, and can feed out the liquid inside the cartridge. 
     The liquid feeding container includes a body, a manipulating body which is mounted movable with respect to the body and is made capable of being manipulated from an outside, a cartridge which is loaded into the body so as to be attachable and detachable, a liquid supplying body for supplying the liquid inside the tank portion to the outside, a piston rod which is workable on the piston to press the piston of the cartridge forward, and movable inside the cartridge case and body, and a conversion mechanism for converting a manipulating force applied to the manipulating body into forward movement of the piston rod.

Full Description:
BACKGROUND OF THE INVENTION 
   1. Field of the Invention 
   The present invention relates to a cartridge type liquid feeding container having a cartridge for housing a liquid such as cosmetic ink, writing ink, correction liquid, etc, and capable of feeding out the liquid inside the cartridge. 
   2. Description of the Related Art 
   Conventionally, as a container housing a liquid of this kind and capable of feeding the liquid, there is the one described in, for example, Japanese Utility Model Publication No. 6-14844. The liquid container described in this Official Gazette is comprised of a barrel body in which a coating liquid storing portion is formed, a threaded bar projectingly provided at a piston slidably fitted in the storing portion, and a rotary cylinder integrally connecting an inner cylinder member and an outer cylinder member. The outer cylinder member has a ring protruded rib and an engaging claw capable of being resilient in an axial direction in a tip end portion of the outer cylinder so that the ring protruded rib is press-fitted into a ring groove at the rear end of the barrel body to rotatably connect the rotary cylinder to the barrel body, and the engaging claw of the outer cylinder member is elastically meshed with a ratchet tooth integrally formed in a circumferential direction in the barrel body to construct a ratchet mechanism. A threaded hole is provided in the inner cylinder member of the rotary cylinder to be screwed onto the threaded bar. Two plane portions formed on both sides over the entire length of the threaded bar are slidably fitted into a slide hole formed in a partition wall of the rear end of the storing portion of the barrel body, and the threaded bar is advanced without being rotated by the rotation of the rotary cylinder to press the piston in the axial direction to supply a coating liquid. 
   When the rotary cylinder is rotated with respect to the barrel body, relative rotation occurs between the inner cylinder member of the rotary cylinder and the threaded bar because the threaded bar is slidably fitted in the slide hole formed in the partition wall of the rear end portion of the storing portion of the barrel body, and the threaded bar advances by thread engagement between the threaded bar and the threaded hole of the rotary cylinder to press the piston in the axial direction to make it possible to supply a coating liquid to a tip end of the barrel body. 
   However, with the liquid container described in this Official Gazette, when the liquid stored in the coating liquid storing portion is used up, the liquid container itself cannot be reused, and is thrown away after only one use, which is a waste of resources. When the content of the liquid is desired to be replaced and used temporarily, there is no other way but to use another liquid container. 
   The liquid container described in Japanese Patent Laid-Open No. 2001-299442 has the same problems as Japanese Utility Model Publication No. 6-14844. 
   SUMMARY OF THE INVENTION 
   The present invention is made in view of the above problems, and its object is to provide a cartridge type liquid feeding container which is a cartridge type capable of being used by refilling or replacing the liquid instead of throwing away the container itself after only one use, and is capable of feeding out the liquid inside the cartridge. Another object of the present invention is to provide a cartridge type liquid feeding container which makes it possible to perform the operation easily when the liquid is refilled or replaced. 
   In order to achieve the object, a cartridge type liquid feeding container according to the present invention comprises a body, a manipulating body capable of being manipulated from an outside, a cartridge which is loaded into the body so as to be attachable and detachable, and has a cartridge case, a tank portion located inside the cartridge case for housing a liquid, and a piston which slidably moves in the tank portion, a liquid supplying body for supplying the liquid inside the tank portion to the outside, a piston rod which is workable on the piston to press the piston of the cartridge forward, and is movable inside the cartridge case and body, and a conversion mechanism for converting a manipulating force applied to the manipulating body into forward movement of the piston rod. 
   The conversion mechanism may be a thread engagement between the piston rod and the cartridge case, for screwing the piston rod into the cartridge case, and moving the piston rod forward by relative rotation between the manipulating body and the body. 
   The piston rod may be biased in a direction to go away from the cartridge, inside the body and the thread engagement may screw the piston rod into the cartridge case when the cartridge is located in a mounting position inside the body, whereas when the cartridge is out of the mounting position inside the body, the thread engagement may loosen the screwing of the piston rod and the cartridge case. 
   The thread engagement may comprise a male thread formed on an outer peripheral surface of the piston rod and a female thread provided on the cartridge case, the female thread may be capable of expanding and contracting in a radial direction, and when the female thread is located in the mounting position inside the body, the female thread may contract in a diameter and be screwed onto the male thread. 
   Preferably, the liquid supplying body may be separable from the body. 
   The liquid supplying body may be provided on a leading tool, the cartridge may be attachably and detachably connected to the leading tool, and the leading tool may be attachably and detachably mounted to the body. 
   According to the present invention, by manipulating the manipulating body, the conversion mechanism converts the manipulating force applied to the manipulating body into the forward movement of the piston rod, the piston rod works on the piston of the cartridge and moves inside the cartridge case and inside the body to press the piston forward. The piston slides in the tank portion to push the liquid inside the tank portion forward, and therefore the liquid can be supplied to the outside from the liquid supplying body. When the liquid inside the tank portion becomes scarce, the cartridge is removed from the body, and is replaced with a new cartridge, whereby the liquid can be supplied again. At this time, the piston rod is separable from the piston, and therefore the cartridge can be easily replaced. 
   In this manner, the body, the piston rod, and the manipulating body can be used continuously without being thrown away after only one use, and the resources can be utilized effectively. 
   On replacement of the cartridge, when the cartridge is removed from the mounting position inside the body, the screwing of the piston rod and the cartridge case is loosened, and thereby the cartridge can be released from the piston rod and easily removed. Then, the piston rod can be automatically returned to the position where the piston rod is separated from the cartridge. 
   If the liquid supplying body of the cartridge is replaced, different kinds of liquid can be supplied with the same liquid feeding container. 
   The present disclosure relates to subject manner contained in Japanese Patent Application No. 2004-12326, filed on Jan. 20, 2004, which is expressly incorporated herein by reference in its entirety. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
       FIG. 1  is an overall longitudinal cross-sectional view showing a cartridge type liquid feeding container of a first embodiment of the present invention; 
       FIG. 2  is an overall longitudinal cross sectional view showing a state when a cartridge of the cartridge type liquid feeding container of the first embodiment is loaded; 
       FIG. 3  is an overall longitudinal cross-sectional view showing a state in which a piston rod of the cartridge type liquid feeding container of the first embodiment moves forward; 
       FIG. 4A  is a plan view,  FIG. 4B  is a longitudinal cross-sectional view of a manipulating body, and  FIG. 4C  is a sectional view taken along the c—c line in  FIG. 4B ; 
       FIG. 5A  is a plan view, and  FIG. 5B  is a longitudinal cross-sectional view of the cartridge; 
       FIG. 6A  is a longitudinal cross-sectional view of a chuck, and  FIG. 6B  is a view seen along the line  6 B in  FIG. 6A ; 
       FIG. 7A  is a plan view, and  FIG. 7B  is a longitudinal cross-sectional view of a piston; 
       FIG. 8  is an overall longitudinal cross-sectional view showing a cartridge type liquid feeding container of a second embodiment of the present invention; 
       FIG. 9  is an overall longitudinal cross-sectional view showing a state when a cartridge of the cartridge type liquid feeding container of the second embodiment is loaded; 
       FIG. 10A  is a plan view and  FIG. 10B  is a longitudinal cross-sectional view of the cartridge of the second embodiment; 
       FIG. 11A  is a longitudinal cross-sectional view of a chuck, and  FIG. 11B  is a view seen along the line  11 B in  FIG. 11A , of the second embodiment; 
       FIG. 12  is an overall longitudinal cross-sectional view of a cartridge type liquid feeding container of a third embodiment of the present invention; and 
       FIG. 13  is an overall longitudinal cross-sectional view showing a state when a cartridge of the cartridge type liquid feeding container of the third embodiment is loaded. 
   

   DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
   Hereinafter, an embodiment of the present invention will be explained by referring the drawings. 
     FIG. 1  to  FIG. 3  are views showing a cartridge type liquid feeding container of a first embodiment of the present invention. 
   In the drawings, a cartridge type liquid feeding container  10  generally has a leading tool  12  including a liquid supplying body, a body  13 , a manipulating body  14 , a cartridge  16 , a piston rod  17 , a spring  18  for biasing the piston rod  17  rearward and a cap  19 . 
   The leading tool  12  is provided with a brush  24  which is a liquid supplying body for coating the liquid, a tip end pipe  26  for flowing the liquid to the brush  24 , and a pipe holder  28  which is fixed inside the leading tool  12 , and also fixes the brush  24  and a tip end pipe  26  to the leading tool  12 . Further, on an inner peripheral surface of the leading tool  12 , a plurality of longitudinal ribs  12   a  (see  FIG. 1 ) extending in an axial direction are formed behind the pipe holder  28 . However, instead of the longitudinal ribs  12   a , the inner peripheral surface of the leading tool  12  may be in a polygonal shape. 
   A rear end portion of the leading tool  12  is inserted into a tip end portion of the body  13  and is screwed into the tip end portion of the body  13  to be attachable and detachable. After being screwed, the leading tool  12  and the body  13  are integrally connected. An annular step portion  13   a  expanded in an inner diameter direction is formed in a central portion inside the body  13 , and the piston rod  17  penetrates through a center hole of the annular step portion  13   a . A portion in the front from the annular step portion  13   a  inside the body  13  is a space into which the cartridge  16  is inserted. A portion just in front of the annular step portion  13   a  is a small diameter portion  13   b , and the small diameter portion  13   b  has a smaller inner diameter than the portion on the front side from the small diameter portion  13   b . An annular rib  13   d  is formed on an inner peripheral surface of the rear end portion of the body  13 . 
   A manipulating body  14  is mounted to a rear end portion of the body  13  to be capable of relatively rotating manipulation with respect to the body  13 . Namely, as shown in  FIGS. 4A ,  4 B and  4 C, the manipulating body  14  is formed with a large diameter portion  14   a  and a small diameter portion  14   b . An annular rib  14   c  is formed on an outer peripheral surface of the small diameter portion  14   b , and the annular rib  14   c  is fitted in the annular rib  13   d . A plurality of longitudinal ribs  14   e  extending in an axial direction are formed on an inner peripheral surface of the manipulating body  14 . 
   The cartridge  16  is attached into the body  13  so as to be attachable and detachable, and as shown in  FIGS. 5A and 5B , the cartridge  16  has a cartridge case  30 , a tank portion  32  defined inside the cartridge case  30  and housing the liquid, and a piston  34  which moves slidably in the tank portion  32  and serves as a bottom lid. A liquid L which is housed in the tank portion  32  can be, for example, a correction liquid, writing ink, cosmetic ink and the like, and the viscosity does not matter. A tip end of the cartridge case  30  is connected to the pipe holder  28 , a tip end opening  32   a  of the tank portion  32  which is formed at a tip end of the cartridge case  30  communicates with the brush  24  via the pipe holder  28  and the tip end pipe  26 . Longitudinal grooves  30   c  fitted on the longitudinal ribs  12   a  of the leading tool  12  are formed on an outer peripheral surface of the tip end portion of the cartridge case  30 . Thus, the cartridge  16  rotates integrally with the leading tool  12 . If the inner peripheral surface of the leading tool  12  is in a polygonal shape, the outer peripheral surface of the tip end portion of the cartridge case  30  should be formed into the polygonal shape fitted into the inner peripheral surface of the leading tool  12 . 
   A tip plug  35  is enclosed in a tip end opening  32   a  of the tank portion  32  to prevent leakage of the liquid L when the viscosity of the liquid L is small in the unused state of the cartridge, and when the cartridge  16  is connected to the pipe holder  28  when used, the pipe holder  28  pushes the tip plug  35  into the tank portion  32  and opens the tip end opening  32   a . However, when the viscosity of the liquid L is large, the tip plug  35  is not always needed, and instead of the tip plug  35 , a cap for preventing the entrance of dust and the like may be provided. The tip plug  35  may be formed into any shape besides the spherical shape as shown in the drawing. 
   A chuck  36  is provided at a rear end of the cartridge case  30 . The chuck  36  is a vertical chuck, and as shown in  FIGS. 6A and 6B , its engaging protrusion  36   a  is engaged to an engaging hole  30   a  formed on an outer peripheral surface of the rear end portion of the cartridge case  30 , and a pair of upper and lower protrusions  36   b  which are formed at the rear end of the chuck  36  and project in an outer diameter direction are fitted into a pair of upper and lower notches  30   b  formed at the rear end of the cartridge case  30 . At the rear end of the chuck  36 , notches  36   c  are formed in a portion where the protrusions  36   b  are not formed, and on an inner peripheral surface at the rear end of the chuck  36 , a female thread  36   d  is formed in a portion where the notches  36   c  are not formed. As a result that the notches  36   c  are compressed, the female thread  36   d  of the chuck  36  is capable of reducing in the diameter in a radial direction. 
   The piston  34  is constructed by a material elastically in contact with the inner peripheral surface of the cartridge case  30 , and as shown in  FIGS. 7A and 7B , a receiving recessed portion  34   a  opened to the rear is formed at a rear end portion of the piston  34 . 
   In the piston rod  17 , its tip end portion is capable of being fitted into the receiving recessed portion  34   a  of the piston  34  to be attachable and detachable. A male thread  17   a  is formed on an outer peripheral surface of the piston rod  17 . A plurality of longitudinal ribs  17   b  which are fitted in the longitudinal ribs  14   e  of the manipulating body  14  are formed at the rear end portion of the piton rod  17 . Thus, the piston rod  17  rotates integrally with the manipulating body  14 . The inner peripheral surface of the manipulating body  14  may be in the polygonal shape, and the outer peripheral surface of the rear end portion of the piston rod  17  may be in the polygonal shape fitted in the inner peripheral surface of the manipulating body  14 . 
   The piston rod  17  and the chuck  36  provided at the cartridge case  30  are capable of being screwed, and a thread engagement of the male thread  17   a  of the piston rod  17  and the female thread  36   d  of the chuck  36  construct a conversion mechanism for moving the piston rod  17  forward. When the tip end portion of the piston rod  17  is fitted into the receiving recessed portion  34   a  of the piston  34 , the tip end portion of the piston rod  17  is workable on the piston  34 , and the forward moving force of the piston rod  17  can be transmitted to the piston  34 . In this example, the piston rod  17  directly comes into contact with the piston  34  and is capable of pressing operation, but the present invention is not limited to this, and the piston  34  may be made capable of pressing operation via an additional member. 
   In the cartridge type liquid feeding container  10  constructed as above, the operation will be explained. First, the cartridge  16  is loaded into the body  13 . Loading is performed by releasing the screwing of the body  13  and the leading tool  12 , and after connecting the cartridge case  30  to the pipe holder  28  of the leading tool  12 , inserting the cartridge  16  into the body  13  from the opening at the tip end of the body  13 , which is opened, and screwing the leading tool  12  into the body  13  again (see  FIG. 2 ). On the occasion of this screwing, the cartridge  16  is inserted until it abuts to the annular step portion  13   a  of the body  13  as the cartridge  16  is rotating with the leading tool  12 . The chuck  36  provided at the cartridge case  30  is inserted into the small diameter portion  13   b  of the body  13 , the protrusions  36   b  of the chuck  36  are pressed by the small diameter portion  13   b  and compress the notches  36   c  to reduce the inner diameter of the rear end portion of the chuck  36 . While the chuck  36  is rotating, its female thread  36   d  is screwed into the male thread  17   a  of the piston rod  17 . 
   When the cartridge type liquid feeding container  10  is used, the cap  19  is removed, and the liquid can be applied on a desired portion with the brush  24 . When the amount of liquid supplied from the brush  24  becomes scarce, the manipulating body  14  is rotated in a predetermined direction with respect to the body  13 . Then, the piston rod  17  integrally rotating with the manipulating body  14  rotates, and the cartridge  16  is integrated with the body  13 , whereby the piston rod  17  screwed into the chuck  36  of the cartridge  16  moves forward inside the body  13 . The tip end portion of the piston rod  17  is fitted into the receiving recessed portion  34   a  of the piston  34  to push the piston  34  forward, whereby the liquid L inside the tank portion  32  is pushed out to the brush  24  via the pipe holder  28 , and is applied onto the surface to be coated from the brush  24 . 
   In this manner, as the liquid is used, the piston rod  17  moves forward in the cartridge case  30  and in the body  13 , and the piston  34  slides forward inside the tank portion  32  (see  FIG. 3 ). When the liquid is used and the liquid inside the tank portion  32  becomes scarce, and it becomes necessary to replace the cartridge  16 , screwing of the leading tool  12  and the body  13  is released again. When the leading tool  12  is rotated to release the screwing, the cartridge  16  also moves forward while rotating. At this time, the female thread  36   d  of the chuck  36  rotates with respect to the male thread  17   a  of the piston rod  17 . However, when the protrusions  36   b  of the chuck  36  disengage from the small diameter portion  13   b , the inner diameter of the rear end portion of the chuck  36  returns to the original natural state. Therefore, the female thread  36   d  is not screwed onto the male thread  17   a  any more, the screwing is loosened, the piston rod  17  is released from the cartridge  16 , and therefore the piston rod  17  is returned rearward by the spring force of the spring  18  to return automatically to the initial state. 
   After the leading tool  12  and the body  13  are separated from each other, the old cartridge  16  is removed from the leading tool  12 , then a new cartridge  16  is connected to the leading tool  12 , and this new cartridge  16  is loaded into the body  13  again, whereby the new cartridge can be used similarly to the above. In this manner, the liquid can be refilled or replaced-without throwing away the components of the liquid feeding container  10  such as the leading tool  12 , the body  13 , the manipulating body  14  and the like other than the cartridge. 
   Not only the cartridge  16  but also the leading tool  12  can be replaced. For example, when the kind of the liquid is changed, the cartridge inclusive the leading tool  12  is replaced, whereby the leading tool  12  including the brush  24  can be replaced. 
     FIG. 8  is a view showing a second embodiment of the present invention. In the drawing, the same members as in the first embodiment are given the same reference numerals and characters, and the detailed explanation thereof will be omitted. 
   This embodiment differs from the first embodiment in the point that a C-type chuck is used in this embodiment instead of the vertical type chuck used as a chuck in the first embodiment, and in the other points than this, the second embodiment is approximately the same as the first embodiment. 
   As shown in  FIGS. 10A and 10B  and  FIGS. 11A and 11B , a pair of upper and lower protrusions  38   b  formed at a rear end of the C-type chuck  38  to project in an outer diameter direction are fitted into a pair of upper and lower notches  30   b  formed at the rear end of the cartridge case  30  and locked. On the peripheral surface of the chuck  38 , a slit  38   c  extending in the axial direction is formed in a portion where the protrusions  38   b  are not formed, and thus the cross-section of the chuck  38  is formed into the C-shape. On an inner peripheral surface of the rear end portion of the chuck  38 , a female thread  38   d  is formed at a portion where the slit  38   c  is not formed. The slit  38   c  is compressed, whereby the female thread  38   d  of the chuck  38  is capable of being reduced in the diameter in the radial direction. The outline of the chuck  38  including the slit  38   c  is not limited to a circular shape, but may be an elliptical shape. 
   A thread engagement of the male thread  17   a  of the piston rod  17  and the female thread  38   d  of the chuck  38  constructs a conversion mechanism for advancing the piston rod  17 . 
   In the case of the cartridge  16  provided with such a chuck  38 , when the cartridge  16  is loaded into the body  13  (see  FIG. 9 ), the chuck  38  is inserted into the small diameter portion  13   b  of the body  13 , the protrusions  38   b  of the chuck  38  are pressed by the small diameter portion  13   b  to compress the slit  38   c , the inner diameter of the chuck  38  is reduced, and the female thread  38   d  is screwed onto the male thread  17   a  of the piston rod  17  while the chuck  38  is rotating ( FIG. 8 ). 
   On the other hand, when it is necessary to replace the cartridge  16 , then the screwing of the leading tool  12  and the body  13  is released, and the leading tool  12  is rotated, the cartridge  16  also moves forward while rotating. At this time, the female thread  38   d  of the chuck  38  is rotated with respect to the male thread  17   a  of the piston rod  17 , but when the protrusions  38   b  of the chuck  38  are disengaged from the small diameter portion  13   b , the inner diameter of the rear end portion of the chuck  36  returns into the original natural state, and therefore the female thread  38   d  is not screwed onto the male thread  17   a  any more, thus loosening the screwing, and releasing the piston rod  17  from the cartridge  16 . Therefore, the piston rod  17  is returned rearward by the spring force of the spring  18  and automatically returns into the initial state. 
   Thus, the second embodiment can be operated similarly to the first embodiment. 
     FIG. 12  is a view showing a third embodiment of the present invention. In the drawing, the same members as in the first embodiment are given the same reference numerals and characters, and the detailed explanation will be omitted. 
   This embodiment differs from the previous embodiments in the point that the manipulating body is not mounted to the rear end portion of the body, but a leading tool  42  mounted to a tip end portion of a body  43  serves as the manipulating body. 
   Namely, the leading tool  42  is provided with the brush  24  as the liquid supplying body for coating the liquid, the tip end pipe  26  for flowing the liquid to the brush  24 , the pipe holder  28  which is fixed inside the leading tool  42  and fixes the brush  24  and the tip end pipe  26  to the leading tool  42 . Further, on an inner peripheral surface of the leading tool  42 , a plurality of longitudinal ribs  12   a  (see  FIG. 12 ) extending in the axial direction are formed at the rear from the pipe holder  28 . 
   A rear end portion of the leading tool  42  is inserted into and fitted into a tip end portion of the body  43  to be attachable and detachable. After fitting, the leading tool  42  and the body  43  are connected to each other to be relatively rotatable. A stopper  44  is fixed in a central portion inside the body  43 , and the piston rod  17  penetrates through a center hole of the stopper  44 . A portion inside the body  43 , which is in the front from the stopper  44  becomes the space into which the cartridge  16  is inserted. The portion of the body  43  just in front of the stopper  44  becomes a small diameter portion  43   b , and the small diameter portion  43   b  has the smaller inner diameter than the portion on the front side from the small diameter portion  43   b . At the rear portion from the stopper  44  of the body  43 , a plurality of longitudinal ribs  43   a  extending in the axial direction are formed on its inner peripheral surface, the longitudinal ribs  17   b  are fitted in between the longitudinal ribs  43   a , and thereby the piston rod  17  rotates integrally with the body  43 . An inner peripheral surface inside the body  43  may be in the polygonal shape, and the rear end portion of the piston rod  17  may be in a polygonal shape fitted to this. 
   In the cartridge type liquid feeding container  10  constructed as above, an operation thereof will be explained. First, the cartridge  16  is loaded into the body  43 . Loading is performed by releasing the connection of the body  43  and the leading tool  42 , and after connecting the cartridge case  30  to the pipe holder  28  of the leading tool  42 , inserting the cartridge  16  into the body  43  from the opening at the opened tip end of the body  43  and connecting the leading tool  42  to the body  43  again (see  FIG. 13 ). At this time, the cartridge  16  is inserted until the cartridge  16  abuts to the stopper  44  fixed in the body  43 . The chuck  36  provided on the cartridge case  30  is inserted into the small diameter portion  43   b  of the body  43 , the protrusions  36   b  of the chuck  36  are pressed by the small diameter portion  43   b  to compress the notches  36   c  and the inner diameter of the rear end portion of the chuck  36  is reduced. The female thread  36   d  is screwed into the male thread  17   a  of the piston rod  17  while the leading tool  42  and the chuck  36  are being rotated. 
   When the cartridge type liquid feeding container  10  is used, the cap  19  is removed, and the liquid can be applied on a desired portion with the brush  24 . When the liquid supplied from the brush  24  becomes scarce, the leading tool  42  is rotated in a predetermined direction with respect to the body  43 . Then, the cartridge  16  which rotates integrally with the leading tool  42  rotates, while the piston rod  17  is incapable of rotating with respect to the body  43 , and therefore the piston rod  17  moves forward inside the body  43  while being screwed into the chuck  36  of the cartridge  16 . The tip end portion of the piston rod  17  is fitted into the receiving recessed portion  34   a  of the piston  34  to push out the piston  34  forward, and therefore the liquid inside the tank portion  32  is pushed out to the brush  24  via the pipe holder  28  to be coated on the surface to be coated from the brush  24 . 
   In this manner, as the liquid is used, the piston rod  17  moves forward in the cartridge case  30  and the body  43 , and the piston  34  slides forward in the tank portion  32 . When the liquid is used up and the liquid inside the tank portion  32  has run out, and it is necessary to replace the cartridge  16 , the connection of the leading tool  42  and the body  43  is released again. On releasing the connection, when the leading tool  42  is pulled out while rotating, the cartridge  16  also moves forward while rotating. At this time, the female screw  36   d  of the chuck  36  rotates with respect to the male screw  17   a  of the piston rod  17 , but when the protrusions  36   b  of the chuck  36  disengage from the small diameter portion  43   b , the inner diameter of the rear end portion of the chuck  36  returns to the original natural state. Therefore, the female thread  36   d  is not screwed onto the male thread  17   a , screwing is loosened, the piston rod  17  is released from the cartridge  16 , and therefore the piston rod  17  is returned rearward by the spring force of the spring  18  and automatically returns into the initial state. 
   After the leading tool  42  and the body  43  are separated from each other, the old cartridge  16  is disengaged from the leading tool  42 , a new cartridge  16  is connected to the leading tool  42 , and the new cartridge  16  is loaded into the body  43 , whereby the liquid feeding container can be used similarly to the above. In this manner, the liquid can be refilled or replaced without throwing away the components of the liquid feeding container  10  such as the leading tool  42  and the body  43  other than the cartridge. 
   Not only the cartridge  16 , but also the leading tool  42  can be replaced. For example, when the kind of the liquid is changed, if the leading tool  42  including the cartridge  16  is replaced, the leading tool  42  including the brush  24  can be replaced. 
   In each of the above embodiments, the member constructed by the single member can be constructed by a plurality of members, and the member constructed by a plurality of members can be constructed by a single member. 
   While the principles of the invention have been described above in connection with specific embodiments, and particular modifications thereof, it is to be clearly understood that this description is made only by way of example and not as a limitation on the scope of invention.

Technology Classification (CPC): 0