Patent Abstract:
There is provided a solid paste dispenser which makes clear whether or not solid paste for replacement is retained on the side of the solid paste dispenser during replacing work of the solid paste so as not to cause a trouble that solid paste is crushed erroneously. The solid paste dispenser includes a slider  7  caused to ascend and descend within a main body cylinder  2  by rotating a tail wheel  3  mounted to one end of the main body cylinder  2  to rotate a screw rod  5  formed integrally with the tail wheel  3  within the main body cylinder  2 , such that a front end  4   a  of a solid paste  4  mounted to the slider  7  is protruded from and retracted into the main body cylinder  2.  The solid paste  4  is indirectly mounted to the slider  7  by retaining a rear end of the solid paste  4  in a solid paste receiving member  8  engaging the slider  7  in detachable manner.

Full Description:
BACKGROUND OF THE INVENTION  
       [0001]     1. Field of the Invention  
         [0002]     The present invention relates to a solid paste dispenser which facilitates replacement of solid paste.  
         [0003]     2. Description of the Related Art  
         [0004]     As to prior methods of replacing solid paste in a solid paste dispenser, reference can be made to JP-A-2003-231572, Japanese Utility Model Registration No. 3080106, etc.  
         [0005]     JP-A-2003-231572, as shown in  FIG. 17 , suggests a method of replacing solid paste in a solid paste dispenser which includes a slider  05  caused to ascend and descend within a main body cylinder  01  by threaded engagement with a screw rod  03  formed integrally with a tail wheel  02  and by guidance by a guide ridge  04  axially provided on an inner peripheral surface of the main body cylinder  01 , by rotating a tail wheel  02  mounted to one end of the main body cylinder  01  to rotate the screw rod  03  within the main body cylinder  01 , and which is adapted so that a front end of columnar solid paste mounted to the slider  05  can be protruded from and retracted into the main body cylinder. In this replacing method, after the slider  05  which has retained the worn solid paste is detached from the screw rod  03 , a rear end opening  07   a  of a cartridge case  07  which accommodates solid paste  06  for replacement which is retained by another slider  05  is fitted on a front end  01   a  of the main body cylinder  01 , a threaded groove  05   a  provided in an axial position of the slider  05  is engaged in threaded manner with the screw rod  03 , and the rear value  02  is rotated such that the solid paste  06  for replacement retained in the slider  05  is accommodated within the main body cylinder  01 .  
         [0006]     However, in this replacing method, it is not necessarily clear whether or not the slider  05  which retains the solid paste  06  for replacement and the screw rod  03  are in positions where they are to be engaged with each other, during replacing work. For this reason, there is a case that the cartridge case  07  is strongly pushed against the main body cylinder  01 , and consequently the solid paste  06  for replacement may be crushed. This causes a consumer inconvenience in smoothly using the replaced solid paste  06  for replacement. When the degree of the crushing is greater, there is a fear that the solid paste cannot be used. Japanese Utility Model Registration No. 3080106 also has the same problem.  
       SUMMARY OF THE INVENTION  
       [0007]     The present invention has been made in consideration of the above problem.  
         [0008]     It is therefore an object of the present invention to provide an improved solid paste dispenser. In particular it is an object of the present invention to provide a solid paste dispenser, which makes clear whether or not solid paste for replacement is retained on the side of the solid paste dispenser during replacing work so as not to cause any trouble in that solid paste may be crushed by erroneously strongly pushing a cartridge case accommodating the solid paste against a cylinder in the solid paste dispenser.  
         [0009]     These objects according to one aspect of the invention are obtained by:  
         [0010]     A solid paste dispenser comprising a slider which is in threaded engagement with a screw rod formed integrally with a tail wheel mounted to an end of a main body cylinder for rotating the screw rod within the main body cylinder for ascending and descending said slider within the main body cylinder by rotating the tail wheel, a guide ridge axially provided on an inner peripheral surface of the main body cylinder for guiding the slider, and a columnar solid paste mounted to the slider for protruding a front end of the solid paste from the main body cylinder and retracting it into the main body cylinder,  
         [0011]     wherein the solid paste is indirectly mounted to the slider by retaining a rear end of the solid paste in a solid paste receiving member, said solid paste receiving member engaging said slider in detachable manner.  
         [0012]     According to an embodiment of the invention a locking claw is provided in any one of both the solid paste receiving member and the slider, and an engaging part is provided in the other one, at least one of the locking claw and the engaging part is adapted to be elastically deformed, and the elastic deformation is utilized so as to detachably engage the solid paste receiving member with the slider.  
         [0013]     According to another embodiment of the invention a guide part for rotating the solid paste receiving member relative to the slider is provided in order to lock the locking claw provided in any one of the solid paste receiving member and the slider to the engaging part provided in the other one.  
         [0014]     Still in another embodiment of the invention the slider is formed from a guide cylinder having a part to be screwed to the screw rod at an inner peripheral surface thereof, and an engaging part provided at a rear end of the guide cylinder, and an outer peripheral surface of the guide cylinder is provided with a rearward converging guide groove, and the solid paste receiving member is provided with a guide locking piece, the guide groove and the guide locking piece constitute the guide part, and the guide locking piece is guided by the guide groove to rotate the solid paste receiving member relative to the slider so that the locking piece provided in the solid paste receiving member is locked to the engaging part provided in the slider.  
         [0015]     According to another embodiment of the invention the slider is formed from a guide cylinder having a part to be screwed to the screw rod at an inner peripheral surface thereof, and having a rearward converging guide groove at an outer peripheral surface thereof, and an outer cylinder coaxially provided at a rear end of the guide cylinder, having a larger diameter than the guide cylinder, and having an engaging part, and the solid paste receiving member is formed from a guided cylinder having a solid paste retaining part at a front end thereof, fitted on the guide cylinder in the slider, and having a locking part, and an inner peripheral surface of the guided cylinder is provided with a guide locking piece such that the guide locking piece is guided by the guide groove of the slider.  
         [0016]     In another embodiment of the invention a rear end of the rearward converging guide groove provided at the outer peripheral surface of the guide cylinder in the slider is provided with an axial auxiliary guide groove continuously with the guide groove.  
         [0017]     In another aspect of the invention there is provided:  
         [0018]     A solid paste dispenser comprising a slider which is in threaded engagement with a screw rod formed integrally with a tail wheel mounted to an end of a main body cylinder for rotating the screw rod within the main body cylinder for ascending and descending said slider within the main body cylinder by rotating the tail wheel, a guide ridge axially provided on an inner peripheral surface of the main body cylinder for guiding the slider, and a columnar solid paste mounted to the slider for protruding a front end of the solid paste from the main body cylinder and retracting it into the main body cylinder,  
         [0019]     wherein the solid paste is indirectly mounted to the slider by retaining a rear end of the solid paste in a solid paste receiving member, said solid paste receiving member engaging said slider in detachable manner, and  
         [0020]     wherein, a positioning means is provided for determining the rotational position of the solid paste receiving member with respect to the slider when the solid paste receiving member is engaged with the slider, said positioning means comprising a protruding fitting part in any one of facing surfaces between the solid paste receiving member and the slider, and a concave fitting part in the other one such that a fitting between the protruding fitting part and the concave fitting part can visually be recognized from outside, thereby allowing rotational positioning by virtue of the fitting.  
         [0021]     According to an embodiment of this aspect of the invention a locking claw is provided in any one of both the solid paste receiving member and the slider, and an engaging part is provided in the other one, at least one of the locking claw and the engaging part is adapted to be elastically deformed, and the elastic deformation is utilized so as to detachably engage the solid paste receiving member with the slider.  
         [0022]     According to another embodiment, the solid paste receiving member is formed by providing an axial paste receiving cylinder within which an insertion hole for the screw rod is formed, in the center of a paste receiving base so as to protrude forward and rearward, providing a solid paste retaining part at a front part of the paste receiving cylinder, forming a prismatic fitting part at a rear part of the paste receiving cylinder, and providing a locking piece having a locking claw at a rear end thereof, on a rear surface of the paste receiving base so as to protrude therefrom, and the slider is formed by providing an axial slider cylinder having a part to be screwed with the screw rod on an inner peripheral surface of a rear part thereof and having a concave fitter part at a front part thereof, in the center of a base of a slider so as to protrude forward, and providing an engaging part to be locked to the locking claw, in the slider base.  
         [0023]     Still in another embodiment the solid paste receiving member is formed by providing a paste receiving cylinder within which an insertion hole for the screw rod is formed, in the center of a paste receiving base so as to protrude forward and rearward, providing a solid paste retaining part at a front part of the paste receiving cylinder, forming a prismatic fitting part at a rear part of the paste receiving cylinder, forming a rear surface of the paste receiving base in the shape of a truncated cone whose diameter is reduced rearward, and providing a peripheral annular groove engaging part on a lateral peripheral surface of the truncate cone, and the slider is formed by proving a slider cylinder having a concave fitted part, in a front center of a slider base having a part to be screwed with the screw rod in the center thereof, and providing the slider base with a forward locking piece having a locking claw to be locked to the annular groove engaging part at a front end thereof.  
         [0024]     Finally in an embodiment of the invention an outer peripheral surface of a front part of the paste receiving cylinder is provided with a flange-like retaining part for retaining the solid paste.  
         [0025]     According to the invention, the following effects can be exhibited.  
         [0026]     Since the replacing work of solid paste is performed by detachably engaging the solid paste receiving member in which solid paste for replacement is retained in advance with the slider without replacing the slider, it is unnecessary to perform troublesome work that the slider in which solid paste for replacement is retained is engaged in threaded manner with the screw rod like the replacing work in the related art, and there is no fear that, as the cartridge case which accommodates solid paste for replacement is strongly pushed against the main body cylinder in the solid paste dispenser, the solid paste may be crushed.  
         [0027]     Since the locking claw is locked to the engaging part by elastic deformation, the locking is performed positively, and whether or not the solid paste receiving member which retains solid paste for replacement is engaged with the slider can be clearly recognized not only visually, but also aurally by a flip sound which is generated when the locking claw is locked to the engaging part by elastic deformation.  
         [0028]     Since the rotational position of the solid paste receiving member with respect to the slider is automatically guided by the guide part such that the locking claw in any one of the solid paste receiving member and the slider is well locked to the engaging part provided in the other one, an operator can perform the replacing work smoothly without focusing his/her attention to the rotational position of the solid paste receiving member.  
         [0029]     Since the guide locking piece in the solid paste receiving member is guided by the guide groove provided in the outer peripheral surface of the guide cylinder in the slider by moving the solid paste receiving member rearward relative to the slider, a proper rotational position of the solid paste receiving member with respect to the slider is automatically adjusted, and the locking part of the solid paste receiving member is automatically locked to the engaging part provided at the rear end of the slider.  
         [0030]     Since the guide groove is provided in the outer peripheral surface of the guide cylinder in the slider, and the guide locking piece is provided in the inner peripheral surface of the guided cylinder of the solid paste receiving member, the guide locking piece is guided by the guide groove simply by fitting the guided cylinder on the guide cylinder of the slider, and thereby the rotational position of the solid paste receiving member with respect to the slider is automatically adjusted. Therefore, the replacing work can be performed smoothly.  
         [0031]     Since the locking piece is guided by the auxiliary guide groove and the locking piece is positively locked to the engaging part, simply by pushing in the solid paste receiving member rearward without interruption after the rotational position of the solid paste receiving member with respect to the slider is adjusted automatically, the replacing work can be performed smoothly and efficiently.  
         [0032]     Since the replacing work of solid paste is performed by detachably engaging the solid paste receiving member in which solid paste for replacement is retained in advance with the slider without replacing the slider, it is unnecessary to perform troublesome work that the slider in which solid paste for replacement is retained is threadedly engaged with the screw rod like the replacing work in the related art, and there is no fear that, as the cartridge case which accommodates solid paste for replacement is strongly pushed against the main body cylinder in the solid paste dispenser, the solid paste may be crushed.  
         [0033]     In particular, when the solid paste receiving member is engaged with the slider, proper rotational positioning of the solid paste receiving member with respect to the slider is easily performed while the engagement is easily recognized from outside. Thus, the replacing work of solid paste can be performed efficiently without erroneously crushing the solid paste.  
         [0034]     Since the locking claw is locked to the engaging part by elastic deformation, the locking is performed positively, and whether or not the solid paste receiving member which retains solid paste for replacement is engaged with the slider can be clearly recognized not only visually, but also aurally by a flip sound which is generated when the locking claw is locked to the engaging part by elastic deformation.  
         [0035]     During the replacing work of solid paste, a proper rotational position of the solid paste receiving member with respect to the slider is adjusted simply by fitting the prismatic fitting part into the concave fitted part while the fitting is recognized visually from outside. Next, by moving the solid paste receiving member rearward relative to the slider as it is, the locking claw of the solid paste receiving member is automatically locked to the engaging part of the slider, and the solid paste is mounted to the slider by means of the solid paste receiving member.  
         [0036]     During the replacing work of solid paste, a proper rotational position of the solid paste receiving member with respect to the slider is adjusted simply by fitting the prismatic fitting part into the concave fitted part while the fitting is recognized visually from outside. Next, by moving the solid paste receiving member rearward relative to the slider as it is, the locking claw of the slider is automatically locked to the annular groove engaging part of the solid paste receiving member, and the solid paste is mounted to the slider by means of the solid paste receiving member.  
         [0037]     The solid paste is positively retained in the solid paste receiving member, and even if a front end of the solid paste is repeatedly protruded from and retracted into the front end opening of the main body cylinder in the solid paste dispenser, the solid paste can be prevented from falling out of the solid paste receiving member.  
         [0038]     The accompanying drawings which are incorporated in and constitute part of the present specification, are included to illustrate and provide for a further understanding of the invention. 
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0039]      FIG. 1  is a central longitudinal sectional view of a solid paste dispenser according to a first embodiment of the invention having a solid paste accommodated therein;  
         [0040]      FIG. 2  is a central longitudinal sectional view of a cartridge case accommodating solid paste for replacement in the solid paste dispenser according to the first embodiment of the invention, with parts broken away;  
         [0041]      FIG. 3  is an enlarged perspective fragmentary view of the main parts in a status of the solid paste dispenser according to the first embodiment of the invention when replacing work of solid paste is performed;  
         [0042]      FIG. 4  is an enlarged fragmentary front view of the main parts in another status of the solid paste dispenser according to the first embodiment of the invention for explaining the replacing work;  
         [0043]      FIG. 5  is an enlarged fragmentary front view of the main parts in still another status of the main parts of the solid paste dispenser according to the first embodiment of the invention for explaining the replacing work;  
         [0044]      FIG. 6  is an enlarged longitudinal sectional fragmentary view of the main parts of the solid paste dispenser according to the first embodiment of the invention for explaining the replacing work;  
         [0045]      FIG. 7  is a central longitudinal sectional view of a solid paste dispenser according to a second embodiment of the invention showing a status having a solid paste accommodated therein, with parts broken away;  
         [0046]      FIG. 8  is a central longitudinal sectional view of a cartridge case accommodating solid paste for replacement in the second embodiment of the invention, with parts broken away;  
         [0047]      FIG. 9  is an enlarged perspective fragmentary view of the main parts of the solid paste dispenser according to the second embodiment of the invention when replacing work of solid paste is performed;  
         [0048]      FIG. 10  is an enlarged longitudinal sectional fragmentary view of the main parts in a status of the solid paste dispenser according to the second embodiment of the invention for explaining the replacing work;  
         [0049]      FIG. 11  is an enlarged longitudinal sectional fragmentary view of main parts in another status of the solid paste dispenser according to the second embodiment of the invention for explaining the replacing work;  
         [0050]      FIG. 12  is a central longitudinal sectional view of a solid paste dispenser according a third embodiment of the invention, with parts thereof broken away showing a state where solid paste is accommodated therein;  
         [0051]      FIG. 13  is a central longitudinal sectional view, with parts broken away, of a cartridge case accommodating solid paste for replacement in the third embodiment of the invention;  
         [0052]      FIG. 14  is an enlarged perspective fragmentary view of the main parts of the solid paste dispenser according the third embodiment of the invention in a status during replacing work of solid paste;  
         [0053]      FIG. 15  is an enlarged longitudinal sectional fragmentary view of the main parts in another status of the solid paste dispenser according the third embodiment of the invention for explaining the replacing work;  
         [0054]      FIG. 16  is an enlarged longitudinal sectional fragmentary view of the main parts in still another status of the solid paste dispenser according the third embodiment for explaining the replacing work; and  
         [0055]      FIG. 17  is a central longitudinal sectional view of a conventional solid paste dispenser for explaining the replacing work of solid paste. 
     
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS  
       [0056]     FIGS.  1  to  6  are views relating to a solid paste dispenser according to a first embodiment of the invention.  
         [0057]      FIG. 1  is a central longitudinal sectional view showing a state where solid paste is accommodated in the solid paste dispenser of the invention,  FIG. 2  is a central longitudinal sectional view showing a cartridge case which accommodates solid paste for replacement, with a part thereof broken away,  FIG. 3  is an enlarged perspective view of main parts when replacing work of solid paste is performed,  FIGS. 4 and 5  are enlarged front views of main parts for explaining the replacing work, and  FIG. 6  is an enlarged longitudinal sectional view of main parts for explaining the replacing work.  
         [0058]     The solid paste dispenser  1 , similarly to a publicly-known solid paste dispenser, is adapted to protrude a front end  4   a  of solid paste  4  from a front end opening  2   a  and retract the front end into the front end opening by the rotation of a tail wheel  3  which is mounted to one end of a main body cylinder  2 .  
         [0059]     A screw rod  5  is integrally formed with the tail wheel  3 , and a slider  7  is adapted to ascend and descend within the main body cylinder  2  with the rotation of the tail wheel  3  by threaded engagement with the screw rod  5  and by guidance by a guide ridge  6  which is axially provided on an inner peripheral surface of the main body cylinder  2 .  
         [0060]     A solid paste receiving member  8  which retains the solid paste  4  is detachably engaged with the slider  7 . By rotating the tail wheel  3 , the front end  4   a  of the solid paste  4  can be protruded from and retracted into the front end opening  2   a  of the main body cylinder  2 . Similarly to the slider  7 , the solid paste receiving member  8  is also provided with an engaging groove which is engaged with the guide ridge  6 .  
         [0061]     As shown in  FIGS. 3 and 6 , the slider  7  is formed by a guide cylinder  10  having a part  9  to be screwed to the screw rod  5  at its inner peripheral surface, and an outer cylinder  11  coaxially provided at a rear end of the guide cylinder  10  and having a larger diameter than the guide cylinder  10 .  
         [0062]     An outer peripheral surface  10   a  of the guide cylinder  10  is provided with guide grooves  12  having a substantially inverted triangular shape in front view, which converges rearward, and a rear end of the guide grooves  12  is provided with an axial auxiliary guide grooves  13  continuously with the rear end.  
         [0063]     A peripheral wall  11   a  of the outer cylinder  11  is provided with four engaging holes  14  as engaging parts which are arranged at regular intervals in a peripheral direction.  
         [0064]     As shown in  FIGS. 2, 3  and  6 , solid paste  16  for replacement accommodated in a cartridge case  15  is retained by the solid paste receiving member  8 . The solid paste receiving member  8  is composed of a guided cylinder  18  having a solid paste retaining part  17  at a front end thereof. An inner cylinder  19  is coaxially provided in the guided cylinder  18 , and two-stage flange-like parts are provided at an outer periphery of the portion of the inner cylinder  19  which protrudes further forward than the guided cylinder  18 . These flange-like parts form the solid paste retaining part  17 .  
         [0065]     An inner peripheral surface of the guided cylinder  18  is provided with four axial guide locking pieces  20  which are arranged at regular intervals in the peripheral direction.  
         [0066]     The portions of the guided cylinder  18  corresponding to diametrical opposite ends of the cylinder are provided with locking pieces  21 , respectively, which extend rearward (downward in  FIG. 3 ) and which have outward locking claws  21   a  annexed to rear ends thereof. Slits  22  are provided on the right and left sides of the locking piece  21 , whereby the locking piece  21  can be deformed in the radial direction.  
         [0067]     Next, the procedure when replacing work is performed by mounting the solid paste  16  for replacement to the slider  7  will be described.  
         [0068]     First, as shown in  FIG. 3 , a cap  23  (refer to  FIG. 1 ) of the main body cylinder  2  is detached, and the tail wheel  3  is rotated to partially protrude the slider  7  from the front end opening  2   a  of the main body cylinder  2 .  
         [0069]     Next, a cap  24  of the cartridge case  15  which accommodates the solid paste  16  for replacement shown in  FIG. 2  is detached. Then, as shown in  FIG. 3 , the solid paste receiving member  8  is caused to approach the slider  7  with the cartridge case  15  upside down, and as shown in  FIG. 4 , the guided cylinder  18  in the solid paste receiving member  8  is fitted on the guide cylinder  10  in the slider  7  and is pushed in. Thereby, the guide locking pieces  20  provided at the inner peripheral surface of the guided cylinder  18  is abutted on and guided by the rearward converging guide grooves  12  which are provided at the outer peripheral surface of the guide cylinder  10 , and then the solid paste receiving member  8  rotates relative to the slider  7 , thereby automatically adjusting a proper rotational position of the solid paste receiving member  8 .  
         [0070]     As such, the guide locking pieces  20  in the solid paste receiving member  8  and the guide grooves  12  in the slider  7  function as guide parts for adjusting a proper rotational position of the solid paste receiving member  8  with respect to the slider  7  in order to lock the locking claws  21   a  of the locking pieces  21  provided in solid paste receiving member  8  to the engaging holes  14  provided in the slider  7 .  
         [0071]     Next, the solid paste receiving member  8  is further pushed in, and moved rearward relative to the slider  7 , whereby the guide locking pieces  20  are guided by the auxiliary guide grooves  13  which are axially provided continuously with the guide grooves  12 , and the locking claws  21   a  of locking pieces  21  in the solid paste receiving member  8  are locked to the engaging holes  14 .  
         [0072]     Since the locking pieces  21  is adapted to be capable of being deformed in radial direction of the guided cylinder  18 , the locking claws  21   a  of the locking pieces  21  are positively locked to the engaging holes  14 , whereby the solid paste  16  for replacement is indirectly mounted to the slider  7  by means of the solid paste receiving member  8 .  
         [0073]     Next, the tail wheel  3  is rotated to draw the solid paste receiving member  8  retaining the solid paste  16  for replacement along with the slider  7  into the main body cylinder  2 , whereby the replacing work of the solid paste  16  for replacement is completed.  
         [0074]     When the replaced solid paste  4  is worn, and it is replaced with a new solid paste  16  for replacement, the tail wheel  3  is rotated to protrude the solid paste receiving member  8  from the front end opening  2   a  of the main body cylinder  2 , and then the right and left locking pieces  21  of the solid paste receiving member  8  are pushed and elastically deformed toward the inside from the outside. Thereby, the locking between the locking claws  21   a  of the locking pieces  21  and the engaging holes  14  are released, so that the solid paste receiving member  8  can be easily detached from the slider  7 .  
         [0075]     The worn solid paste  4  may be disposed along with the solid paste receiving member  8 , or may be disposed after being separated from the solid paste receiving member  8 .  
         [0076]     FIGS.  7  to  11  are views relating to a solid paste dispenser  101  of a second embodiment of the invention.  
         [0077]      FIG. 7  is a central longitudinal sectional view showing a state where solid paste is accommodated in the solid paste dispenser of the invention, with a part thereof broken away,  FIG. 8  is a central longitudinal sectional view showing a cartridge case which accommodates solid paste for replacement, with a part thereof broken away,  FIG. 9  is an enlarged perspective view of main parts when replacing work of solid paste is performed, and  FIGS. 10 and 11  are enlarged longitudinal sectional views of main parts for explaining the replacing work.  
         [0078]     As shown in  FIG. 7 , the solid paste dispenser  101 , similarly to a publicly-known solid paste dispenser, is adapted to protrude a front end  104   a  of solid paste  104  from a front end opening  102   a  and retract the front end opening by the rotation of a tail wheel  103  which is mounted to one end of a main body cylinder  102 .  
         [0079]     A screw rod  105  is integrally formed with the tail wheel  103 , and a slider  107  is adapted to ascend and descend within the main body cylinder  102  with the rotation of the tail wheel  103  by threaded engagement with the screw rod  105  and by guidance by a guide ridge  106  which is axially provided on an inner peripheral surface of the main body cylinder  102 .  
         [0080]     A solid paste receiving member  108  which retains the solid paste  104  is detachably engaged with the slider  107 . By rotating the tail wheel  103 , the front end  104   a  of the solid paste  104  can be protruded from and retracted into the front end opening  102   a  of the main body cylinder  102 .  
         [0081]     As shown in  FIGS. 9 and 11 , the slider  107  is composed of a slider base  110  at a rear peripheral edge of which an edge frame  109  is provided and a slider cylinder  111  which is provided in the center of the slider base  110  so as to protrude axially forward.  
         [0082]     The slider cylinder  111  has a part  112  to be screwed to the screw rod  105 , at a rear inner peripheral edge thereof, and the slider cylinder is formed with a concave fitted part  113  by forming the section of a cylinder hole  113  at a front part thereof in a substantially square shape.  
         [0083]     Four engaging holes  114  are bored in the slider base  110  at regular intervals around the slider cylinder  111  as engaging parts.  
         [0084]     Meanwhile, the solid paste receiving member  108  is formed by an axial paste receiving cylinder  116  which is provided in the center of a disk-like paste receiving base  115  so as to protrude forward and rearward, and four locking pieces  117  which are provided on a rear face of the paste receiving base  115  so as to protrude rearward at regular intervals in the peripheral direction. An outer peripheral surface of a front part of the paste receiving cylinder  116  is provided with a flange-like retaining part  118  for retaining the solid paste  104 , and a rear part of the paste receiving cylinder  116  is formed with a prismatic fitting part  119  as a protruding fitting part.  
         [0085]     The locking pieces  117  are adapted to be capable of being deformed elastically, and rear ends of the locking pieces  117  are provided with outward locking claws  117   a,  respectively.  
         [0086]     As shown in  FIG. 8 , the solid paste  104  accommodated in a cartridge case  120  is retained by the solid paste receiving member  108 .  
         [0087]     Next, the work when the solid paste  104  is replaced will be described.  
         [0088]     First, as shown in  FIG. 9 , a cap  121  (refer to  FIG. 7 ) of the main body cylinder  102  is detached, and the tail wheel  103  is rotated to partially protrude the slider  107  from the front end opening  102   a  of the main body cylinder  102 .  
         [0089]     Next, a cap  122  of the cartridge case  120  which accommodates the solid paste  104  for replacement shown in  FIG. 8  is detached. Then, as shown in  FIG. 9 , the solid paste receiving member  108  is caused to approach the slider  107  with the cartridge case  120  upside down, and as shown in  FIG. 10 , the prismatic fitting part  119  in the solid paste receiving member  108  is fitted into the cylinder hole (concave fitting part  113 ) of the slider cylinder  111  in the slider  107 .  
         [0090]     Since the prismatic fitting part  119  and the concave fitting part  113  are adapted to be visually recognized from outside, the prismatic fitting part  119  can be easily fitted into the concave fitting part  113 , and this fitting allows a proper rotational position of the solid paste receiving member  108  with respect to the slider  107  to be automatically adjusted.  
         [0091]     Next, by further pushing the cartridge case  120  rearward to push in the solid paste receiving member  108 , the locking claws  117   a  provided at the rear ends of the locking pieces  117  in the solid paste receiving member  108  are abutted on inner peripheral edges of the engaging holes  114  in the slider  107 , and the locking pieces  117  are elastically deformed inwardly.  
         [0092]     Next, by further pushing in the solid paste receiving member  108  to move the solid paste receiving member rearward relative to the slider  107 , as shown in  FIG. 11 , the locking claws  117   a  are locked to the engaging holes  114 , respectively. This locking allows the solid paste  104  to be indirectly mounted to the slider  107  with the solid paste receiving member  108  therebetween.  
         [0093]     Next, the tail wheel  103  is rotated to draw the solid paste  104  along with the solid paste receiving member  108  and the slider  107  into the main body cylinder  102 , whereby the replacing work of the solid paste  104  for replacement is completed.  
         [0094]     When the replaced solid paste  104  is worn, and it is replaced with a new solid paste  104 , the tail wheel  103  is rotated to protrude the solid paste receiving member  108  from the front end opening  102   a  of the main body cylinder  102 , thereby releasing the locking between the locking claws  117   a  in the solid paste receiving member  108  and the engaging holes  114 , so that the worn solid paste  104  along with the solid paste receiving member  108  can be easily detached from the slider  107 . The worn solid paste  104  may be disposed along with the solid paste receiving member  108 , or may be disposed after being separated from the solid paste receiving member  108 .  
         [0095]     Next, a new solid paste  104  may be replaced similarly to the above.  
         [0096]     FIGS.  12  to  16  are views relating to a solid paste dispenser  123  of a third embodiment of the invention, and views corresponding to FIGS.  7  to  11 , respectively, of the second embodiment.  
         [0097]     As shown in  FIG. 12 , solid paste  124  is indirectly mounted to a slider  126  by means of a solid paste receiving member  125 , similarly to the first embodiment.  
         [0098]     As shown in  FIGS. 14 and 16 , the solid paste receiving member  125  is composed of a paste receiving base  127 , and a paste receiving cylinder  128  which is provided in the center of the paste receiving base so as to protrude forward and rearward. A rear face of the paste receiving base  127  is formed in the shape of a truncated cone whose diameter is reduced rearward, and a lateral peripheral surface of the truncated cone is provided with a peripheral annular groove engaging part  129 .  
         [0099]     A cylinder interior  128   a  of the paste receiving cylinder  128  becomes an insertion hole of a screw rod  130 . An outer peripheral surface of a front part of the paste receiving cylinder  128  is provided with a flange-like retaining part  131  for retaining the solid paste  124 , and a rear part of the paste receiving cylinder  128  is formed with a prismatic fitting part  132 .  
         [0100]     Meanwhile, the slider  126  is composed of a slider base  134  having a part  133  to be screwed to the screw rod  130 , at the center thereof, a slider cylinder  135  which is axially provided in the front center thereof, and four locking pieces  136  which are provided at regular intervals on a front peripheral edge of the slider base  134  so as to face the front.  
         [0101]     The interior of the slider cylinder  135  is formed with a concave fitting part  137  into which the prismatic fitting part  132  in the solid paste receiving member  125  is to be fitted.  
         [0102]     Front ends of the locking pieces  136  are provided with inward locking claws  136   a.    
         [0103]     Next, the work when the solid paste  124  is replaced will be described.  
         [0104]     First, as shown in  FIG. 14 , a cap  139  (refer to  FIG. 12 ) of the main body cylinder  138  is detached, and the tail wheel  140  is rotated to partially protrude the slider  126  from the front end opening  138   a  of the main body cylinder  138 .  
         [0105]     Next, a cap  142  of a cartridge case  141  which accommodates the solid paste  124  for replacement shown in  FIG. 13  is detached. Then, as shown in  FIG. 14 , the solid paste receiving member  125  is caused to approach the slider  126  with the cartridge case  141  upside down, and as shown in  FIG. 15 , the prismatic fitting part  132  in the solid paste receiving member  125  is fitted into the cylinder hole (concave fitted part  137 ) of the slider cylinder  135  in the slider  126 .  
         [0106]     Since the prismatic fitting part  132  and the concave fitting part  137  are adapted to be visually recognized from outside, the prismatic fitting part  132  can be easily fitted into the concave fitted part  137 , and this fitting allows a proper rotational position of the solid paste receiving member  125  with respect to the slider  126  to be automatically adjusted.  
         [0107]     Next, by further pushing the cartridge case  141  rearward to push in the solid paste receiving member  125 , the locking claws  136   a  provided at the front ends of the locking pieces  136  in the slider  126  are locked into the annular groove engaging part  129  in the solid paste receiving member  125 .  
         [0108]     Next, by further pushing in the solid paste receiving member  125  to move the solid paste receiving member rearward relative to the slider  126 , as shown in  FIG. 16 , outside surfaces  136   b  of front ends of the locking pieces  136  are abutted on an inner peripheral surface  138   b  in the front end opening  138   a  of the main body cylinder  138 , whereby the locking claws  136   a  are pushed inwardly and positively locked to the annular groove engaging part  129  in the solid paste receiving member  125 .  
         [0109]     As such, the outside surfaces  136   b  of the front ends of the locking pieces  136  are formed in advance such that they are located further outside than the inner peripheral surface  138   b  in the front end opening  138   a  of the main body cylinder  138  while the locking pieces  136  are outside the main body cylinder  138 . As a result, the locking claws  136   a  can be positively and securely to locked to the annular groove engaging part  129  by drawing the locking pieces  136  into the main body cylinder  138 .  
         [0110]     Next, the tail wheel  140  is rotated to draw the solid paste  124  along with the solid paste receiving member  125  and the slider  126  into the main body cylinder  138 , whereby the replacing work of the solid paste  124  for replacement is completed.  
         [0111]     The above description of preferred embodiments has been given by way of example. From the disclosure given, those skilled in the art will not only understand the present invention and the attendant advantages, but will also find apparent various changes and modifications to the structures disclosed. It is sought, therefore, to cover all such changes and modifications as fall within the spirit and scope of the invention, as defined by the appended claims, and equivalents thereof.

Technology Classification (CPC): 0