Abstract:
An improved label stamper which is capable of stamping prices on labels attached on a tape so as to attach the stamped labels on commodities is disclosed. A tape loading mechanism of the label stamper is constituted such that a loading case goes in and out of the machine by functions of a pair of folding and extending legs, so that the label tape can be loaded in a convenient manner. A guide is constituted such that a front plate and a rear plate are fastened across a narrow gap, and this gap forms a guide channel. In a holding mechanism, a push plate is disposed facing toward a base plate, and the push plate interlocks a movable lever to the loading case. Thus, if the tape is inserted into the guide channel, the tape is automatically press-held to the base plate. In a stamping mechanism, a selecting hole of a selecting wheel for driving a stamping belt is provided with a recess and a triangular protuberance. Thus two selecting wheels will never be engaged together, and fingers of a selecting bar are accurately coupled to the selected wheel. In a carrying mechanism, carrying rollers are provided in the form of a cartridge, and this cartridge is replaceably accommodated within a cartridge compartment. This improves the compactness and the performance of the label stamper, and the cartridge can be conveniently replaced.

Description:
This application is a continuation of U.S. application Ser. No. 09/017,506, filed Feb. 2, 1998, U.S. Pat. No. 5,921,180. 
    
    
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to an improved label stamper which is capable of stamping prices on labels attached on a tape so as to attach the stamped labels on commodities. 
     2. Description of the Prior Art 
     Generally, the label stamper is a machine which stamps prices on labels to attach them on commodities. The label stamper has a complicated structure. 
     That is, the label stamper includes: (1) a means for loading a label tape into a case; (2) a guide means for guiding the loaded label tape toward a stamper; (3) a holding means for firmly holding the guided label tape onto the stamper; (4) a stamping means for stamping prices on labels; and (5) a carrying means for attaching the stamped labels on commodities, and for pulling the empty tape to discharge it to the outside. These means have various structures respectively, and the constitution of the structures of the different means decide the superiority of the label stamper. 
     The prior art for the present invention will be described below. 
     (1) One example of the loading means for loading the label tape of the label stamper is disclosed in Japanese Utility Model Laid-open No. Sho-59-3814 (dated Jan. 11, 1984). In this tape loading device, a tape roll is inserted into a narrow loading chamber of the label stamper. 
     In this prior art, the tape roll is inserted into the narrow loading chamber, and a supporting shaft is fitted into a retainer. This procedure is very complicated, and inconvenient. Further, it frequently happens that the tape is not smoothly loosened. 
     Other loading means are known, but they are also inconvenient like the above described device. However, within a crowded store, it is desired to replace the tape roll quickly. 
     (2) One example of the guide means for guiding the label tape is disclosed in Korean Utility Model Publication No. 90-1370. In this guide means, a guide hole is formed vertically from the top of the stamping machine like a tunnel. The end of the label tape is inserted into the tunnel shaped guide hole from above to pass through the bottom of the machine. Then the tape is carried by a carrying roller. 
     In this prior art, the label tape is liable to be bent or folded within the tunnel, and therefore, it is very inconvenient to insert the label tape. 
     (3) Examples of the holding means for holding the tape are disclosed in Korean Patent Publication No. 82-1815 (dated Oct. 12, 1982) and Korean Patent application Laid-open No. 88-12449 (Nov. 26, 1988). 
     In these devices, a lower plate which is provided with a push plate can be opened and closed by means of a hinge. 
     Therefore, when inserting the tape into the guide hole, the lower plate is opened, then the tape is inserted into the guide hole, and then, the lower plate is closed, so that the push plate would push up the tape. 
     In these devices, each time when the label tape is replaced, the lower plate has to be opened and closed, this being a troublesome task. Further, their structure is very complicated, and therefore, the manufacturing cost becomes high, as well as being liable to disorders. Further, the operation procedure for the stamping machine is very complicated. 
     (4) The important matter in the label stamping is the shifting of the character blocks. One example of the stamping means is disclosed in Korean Utility Model Publication No. 83-2593 (dated Dec. 7, 1983), Korean Patent Application Laid-open No. 88-308 (dated Mar. 24, 1988), and Korean Patent Publication No. 80-1096 (dated Oct. 6, 1980). Further, other examples are known. 
     In one of these devices, the selecting wheel has to be rotated manually, and therefore, the selecting wheel is very inconvenient. 
     In another, the selecting wheel is rotated by means of a selecting bar. When shifting the selecting bar, the selecting bar is engaged between two selecting wheels, with the result that the two selecting wheels are rotated simultaneously. Because of this, the selection of character blocks becomes inconvenient. 
     (5) Examples of the carrying means for carrying the tape of the label stamper are disclosed in Japanese Patent Publication No. Sho-53-43038 (dated Nov. 16, 1978), Japanese Utility Model Laid-open No. 83-139 (dated Mar. 25, 1983), and Korean Utility Model Publication No. 90-3053 (dated Apr. 12, 1990). 
     In these devices, the tape carrying roller is secured to the machine by means of supporting shafts, and therefore, the assembling procedure is very complicated. Further, they cannot maintain balance with the other assembling procedure of the other components, and therefore, the production line is stopped frequently, with the result that the production cost is increased. Further, even if the carrying roller is damaged during the use, its replacement is almost impossible, with the result that the whole stamping machine becomes useless. 
     SUMMARY OF THE INVENTION 
     The present invention is intended to overcome the above described disadvantages of the conventional techniques. 
     Therefore it is an object of the present invention to provide a label stamper for use in a store for stamping prices on commodities, in which the functions are much progressed and improved. 
     The tape loading means of the label stamper according to the present invention is constituted such that a loading case goes in and out of the machine by functions of a pair of folding and extending legs, so that the label tape can be loaded in a convenient manner. 
     The guide means for the label tape according to the present invention is constituted such that a front plate and a rear plate are fastened across a narrow gap, and in this gap, a guide channel is formed. A side of this channel is open, and the tape is inserted into the open portion of the channel in a convenient and speedy manner. 
     The holding means of the label stamper according to the present invention is constituted such that a push plate is disposed facing toward a base plate, and the push plate interlocks a movable lever to the loading case. Thus, if the tape is inserted into the guide channel, the tape is automatically press-held to the base plate. During the carriage of the tape, the tape is carried by being lightly pressed upon the base plate. 
     The stamping means of the label stamper according to the present invention is constituted as follows. That is, a selecting hole of a selecting wheel for driving a stamping belt is provided with a recess and a triangular protuberance. Thus two selecting wheels will never be engaged simultaneously, and fingers of a selecting bar are accurately coupled to the selected wheel. Therefore, the desired characters can be accurately and conveniently selected. 
     The stamping means includes an ink roller of a known type and an interlocking mechanism for the ink roller. Thus automatically, ink is spread on the character blocks, with the result that the characters are clearly stamped on the labels. 
     In the carrying means for carrying the label tape, the carrying rollers for the tape are provided in the form of a cartridge, and this cartridge is replaceably accommodated within a cartridge compartment. This improves the compactness and the performance of the label stamper, and the cartridge can be conveniently replaced. 
     Therefore, the label stamper according to the present invention shows improved functions, with the result that the label stamper is not liable to disorders, and its use is convenient. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     The above objects and other advantages of the present invention will become more apparent by describing in detail the preferred embodiment of the present invention with reference to the attached drawings in which: 
     FIG. 1 illustrates the total constitution of the label stamper of the present invention, with the side plate removed; 
     FIG. 1-1 is a perspective view showing the tape loading means  100  of the label stamper of the present invention, with the side plate removed; 
     FIG. 1-2 is a side view showing the loaded state of the tape roll; 
     FIG. 1-3 is a frontal view showing the tape loading means partly cut off; 
     FIG. 2-1 is a perspective view showing the guide channel means  200  for the label tape of the present invention; 
     FIG. 2-2 is a perspective view showing the guide means in detail, with the side plate removed; 
     FIG. 2-3 is a side view showing the label tape inserted into the guide channel of the label stamper according to the present invention; 
     FIG. 3-1 is an exploded perspective view showing the holding means  300  for holding the label tape of the present invention; 
     FIG. 3-2 is a side view showing the critical portion of the holding means; 
     FIG. 3-3 illustrates the operating state of the label tape; 
     FIG. 4-1 is an exploded perspective view showing the stamping means  400  according to the present invention; 
     FIG. 4-2 is an enlarged side view of the stamping means; 
     FIG.  4 - 2   a  is a frontal view of the selecting wheel; 
     FIG. 4-3 is an enlarged sectional view showing the shifting of the selecting bar in the selecting wheel according to the present invention; 
     FIG. 4-4 is an enlarged sectional view showing a selection-contact state of the selecting bar together with the selecting wheel; 
     FIG. 5-1 is an exploded perspective view showing the tape carrying means  500  of the label stamper according to the present invention; 
     FIG. 5-2 is an exploded perspective view of the tape carrying cartridge according to the present invention; 
     FIG. 5-3 is a perspective view of the tape carrying cartridge; 
     FIG. 5-4 is a longitudinal sectional view of the tape carrying cartridge; 
     FIG. 5-5 is a side sectional view taken along a line A—A of FIG. 5-4; 
     FIG. 5-6 is a side sectional view taken along a line B—B of FIG. 5-4; and 
     FIG. 5-7 illustrates the assembled state of the tape carrying cartridge according to the present invention. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     As shown in FIG. 1, the label stamper according to the present invention includes: 
     a label tape loading means  100  for loading a label tape in a convenient manner; 
     a label guide means  200  with its side portion open; 
     a tape holding means  300  for automatically press-holding the label tape after its insertion into a guide channel; 
     a character selecting means  400  for selecting characters in an accurate and easy manner; and 
     a cartridge type tape carrying means  500  for attaching stamped labels onto commodities, and for pulling out the empty tape to the outside of the label stamper. 
     The above described function means  100 ,  200 ,  300 ,  400  and  500  have improved structures compared with the conventional means. 
     Now the function means will be described as to their constitutions and actuations. 
     FIG. 1-1 is a perspective view showing the tape loading means  100  of the label stamper of the present invention, with the side plate removed. FIG. 1-2 is a side view showing the loaded state of the tape roll. FIG. 1-3 is a longitudinal sectional view of it. 
     As shown in FIG. 1-1, a tape loading compartment  102  is formed at a middle of a main body  101 . The tape loading compartment  102  is surrounded by side plates  102   a,  and its top is open. On one of the side plates  102   a  of the tape loading compartment  102 , there are disposed a pair of joint type legs  104  supported by shafts  105  and  105 ′. A loading case  103  is disposed above the legs  104 . A torsion spring  105   s  is installed on each of the legs  104 , so that the legs  104  can be extended. 
     In the loading case  103 , a shaft  103   b  projects at the middle of the side plate  103   a.  Another side of the loading case  103  is open. The outer end of the shaft  103   b  forms a free end  103   b ′. A plurality of labels  106   a  are attached aligned in one straight line on a tape  106 , this being a known type. A shaft hole  106   b  of a tape roll  106   r  on which the tape  106  is wound is fitted to the shaft  103   b  from the free end  103   b ′, thereby loading the tape roll into the loading case  103 . 
     An arcuate cover  103   c  is disposed above the loading case  103 , and the cover  103   c  is provided with an engaging step  103   d.  The loading compartment  102  is provided with a locking lever  103   e  having an engaging step  103   d ′, so that it can be coupled to the engaging step  103   d  of the cover  103   c.    
     As shown in FIG. 1-2, if the case  103  is pressed down into the loading compartment  102 , then the engaging step  103   d  of the cover  103   c  is coupled to the engaging step  103   d ′ of the locking lever  103   e  so as to be locked. 
     Since the engaging steps  103   d  and  103   d ′ are coupled together, and owing to the elasticity of the locking lever  103   e,  the locking lever  103   e  is not released unless it is manually released. 
     The cover  103   c  which is disposed above the loading case  103  arcuately covers the loading compartment  102 , thereby protecting the tape. The lower half portion of the loading case  103  is inserted into the loading compartment  102 , while the upper half portion of the loading case  103  is exposed above the main body. Therefore, the remaining amount of the tape can be confirmed visually. Although a part of the tape roll  106   b  is exposed to the outside of the loading compartment  102 , the tape roll does not depart from the loading compartment. 
     Each of the legs  104  of the loading case  103  consists of an upper leg  104   a  and a lower leg  104   b,  these two being connected by a shaft  104   d  of a joint  104   c.  That is, the upper and lower legs are connected by a hinge, so that the legs  104  can be folded and extended. 
     The upper and lower portions of the upper and lower legs  104   a  and  104   b  are provided with teeth  104   g  and  104   g ′ like gears, and these teeth are meshed together. Owing to the mesh of the teeth, the upper and lower legs  104   a  and  104   b  of the two legs  104  actuate at the same angle, so that the loading case can move vertically up and down. A torsion spring  105   s  is installed on each of the shafts  105 ′ of the legs  104 , thereby providing elastic forces to the legs  104 . 
     Therefore, if the locking lever  103   e  is pulled to a side to release the two engaged engaging steps  103   d  and  103   d ′, then the folded legs  104  extend upward as shown in FIG. 1-3. Under this condition, owing to the extension of the legs  104 , the loading case  103  which has been accommodated within the loading compartment  102  protrudes upward. When the loading case is thus protruded, the tape roll  106   r  can be loaded in a convenient manner. 
     This loading device is improved compared with the conventional ones, while its aesthetic appearance is nice, as well as being convenient to use. 
     FIG. 2-1 is a perspective view showing the guide channel means  200  for the label tape of the present invention. FIG. 2-2 is a perspective view showing the guide means in detail, with the side plate removed. FIG. 2-3 is a side view showing the label tape inserted into the guide channel of the label stamper according to the present invention. 
     As shown in FIG. 2-1, a side plate  202  of the main body  101  is divided into a front side plate  202   a  and a rear side plate  202   b.  These two side plates  202   a  and  202   b  are attached onto a side of the main body  101  through screws  205  and screw holes  205   a  and  205   b,  leaving a small gap between them. This gap is a guide channel  203  through which the tape runs. 
     As shown in FIG. 2-2, a guide plate  202   c  is formed on the front end of the rear plate  202   b,  and this guide plate  202   c  forms a side wall of the guide channel  203 . In the drawing, the guide channel  203  is bent in an L shape. However, it will not be limited to the drawn shape, but can be modified to any other shape. 
     In accordance with the shape of the guide channel  203 , the contours of the front and rear plates  202   a  and  202   b  are varied. Further, the guide channel  203  is defined by the front and rear plates  202   a  and  202   b.  This channel  203  is open, and this feature is that which is different from the conventional ones. 
     Therefore, as shown in FIG. 2-3, the tape  106  which is accommodated within the loading room  102  can be inserted into the guide channel  203  through the open portion. This is an improved feature compared with the conventional ones in which the tape is inserted into a guide hole. 
     The guide channel  203  guides the label tape  106  under a stamp P, so that the labels can be stamped. 
     At the lower portion of the guide channel  203 , there is formed a base plate  206  which is formed on the rear side plate  202   b  (refer to FIG.  3 - 1 ). 
     The base plate  206  is a pad for supporting the stamping. Facing to a sharp edge of the base plate  206 , there is an attaching roller  207  which is rotatably secured on the lower end of the front side plate  202   a.    
     Accordingly, if the tape is pulled by the tape carrying means (which is to be described later), the stamped labels  106   a  are detached from the tape  106  at the sharp edge of the base plate  206  due to the bent running of the tape. Then the detached labels are attached onto the commodities owing to the pressing of the attaching roller  207 . That is, if the handle  204  is grasped, and if the attaching roller  207  is rubbed onto the commodity, then the label is attached onto the commodity. 
     FIG. 3-1 is an exploded perspective view showing the holding means  300  for the label tape of the present invention. FIG. 3-2 is a side view showing the holding means. FIG. 3-3 illustrates the operating state of the label tape. 
     The tape holding means  300  is a device which lightly presses the label tape when stamping it, so that the label tape would not be oscillated. 
     As shown in FIG. 3-1, the base plate  206  faces the stamping device P in an inclined posture. Above the base plate  206 , there is a push plate  303  which is installed movably up and down by means of a retaining portion  303   a  and supporting shaft  305 . Owing to the force of the coil spring  304 , the push plate  303  presses the base plate  206 , so that the tape  106  would be secured on the base plate  206 . 
     About the middle of the side plate  102   a  of the main body  101 , there is installed an interlocking lever  306  which is coupled to a shaft  305   a  by means of a shaft hole  306   c  together with a coil spring  304   a.  An actuation lever  307  which is installed on the main body  101  contacts with a recessed cam portion  306   a  of the lever  306 . When the actuation lever  307  is actuated up and down by means of a manual lever  204   a,  the interlocking lever  306  moves up and down owing to the sliding of a protuberance  307   a.    
     As shown in FIG. 3-2, a roller  301  which is installed on a shaft  302  of the lever  306  presses or releases the label tape  106  which has been inserted into the guide channel  203 . Therefore, when the tape runs, an excessive loosening of the tape is prevented. 
     As shown in FIG. 3-3, a connection bar  310  is connected to a connection groove  104   e  and a connection groove  306   d  by means of shafts  310   a  and  310   b.    
     Therefore, when the loading case  103  is inserted into the loading compartment  102  like in the FIG. 3-2, the connection bar  310  pushes the upper portion of the interlocking lever  306  to the left, and therefore, the lower portion  306   b  of the lever  306  departs from the lever  303   b  of the push plate  303 . 
     Therefore, owing to the elastic force of the coil spring  304 , the push plate  303  closely contacts to the base plate  206  to lightly press down the tape on the base plate  206 . This prevents movements of the label tape during the stamping, so that the stamping can be made accurately. 
     Meanwhile, when the loading case  103  is protruded to the outside of the loading compartment  102  like in FIG. 3-3, the connection bar  310  is pulled to the right by the legs  104 . Therefore, the lower portion  306   b  of the lever  306  moves to the left, and therefore, the lower portion  306   b  of the lever  306  presses down the lever  303   b  of the push plate  303 , with the result that the push plate  303  departs from the base plate  206 . Under this condition, the tape  106  can be easily inserted in between the push plate  303  and the base plate  206  during a replacement of the tape. 
     FIG. 4-1 is an exploded perspective view showing the main portion of the stamping means  400  according to the present invention. FIG. 4-2 is an enlarged side view of the stamping means. FIG. 4-3 is an enlarged sectional view showing the shifting of the selecting bar in the selecting wheel according to the present invention. FIG. 4-4 is an enlarged sectional view showing a selection-contact state of the selecting bar together with the selecting wheel. 
     The stamping means of the label stamper according to the present invention is capable of selecting and arranging the character blocks accurately and speedily. 
     As shown in FIGS.  1  and  3 - 2 , the stamper P is generally installed on the front portion of the actuation lever  307  which is actuated by a hand lever  204   a.    
     In this stamper P, two side plates  401  and  402  are assembled by means of fastening screws  409  and  409 ′ and fastening holes  409   a,    409   a ′,  402   e  and  402   e ′ of a supporting plate  408   a.  A guide plate  402   a  with a guide groove  402   b  formed thereon is formed on an end of the side plate  402 . A coupling hole  402   d  which is formed on an end of the guide plate  402   a  is coupled to a coupling protuberance  408   b  of the side plate  401 . A rectangular slider  410  is inserted into the guide groove  402   b  of the guide plate  402   a,  in such a manner that the slider  410  can slide through elongate guide holes  401   a  and  401   b  formed laterally on the upper portions of the side plates  401  and  402 . 
     Further, on the upper portion of the side plate  401 , there are formed a guide rod  406  and a gently curved retaining plate  408 . A selecting wheel  404  having a plurality of selecting steps is fitted to the guide rod  406 , and at the same time, is supported by the gently curved retaining plate  408 . A stamping wheel  405  is installed between the two side plates  401  and  402  by means of a shaft  405   a  and shaft holes  405   b.  Surrounding the selecting wheel  404  and the stamping wheel  405 , there is a character stamping belt  403  on which an index part (not shown in the drawing) and a numeral part (not shown in the drawing) are formed. An elastic grasping ring  411  which is formed on the slider  410  receives a selecting bar  412  together with a sleeve  407  through a cut portion  411   a.    
     A handle  412   a  is formed on the rear portion of the selecting bar  412 . A plurality of fingers  412   b  (3 in the drawing) having protuberances  412   c  are formed on the front portion of the selecting bar  412 . The selecting bar  412  is inserted into the selecting hole  404   a  of the selecting wheel  404 . Thus an indicating pin  410   a  of the slider  410  is set to the desired numeral of the numeral part of the stamping belt  403  by shifting the selecting bar  412  by holding the handle  412   a.    
     The selecting hole  404   a  is provided with a plurality of ridges  404   b  and furrows  404   c.  As show n in FIG.  4 - 2   a,  the protuberances  412   c  of the fingers  412   a  of the selecting bar  412  are inserted into the furrows  404   c  of the selecting hole  404   a  so as to be clutched owing to the elasticity of the fingers. 
     Therefore, if the selecting wheel is rotated by turning the selecting bar  412  by grasping the handle  412   a,  the clutched selecting wheel is rotated, and the stamping belt  403  is also rotated. Thus the selected numeral is placed on the lower stamping wheel  405 . 
     As shown in FIG. 4-4, a triangular protuberance  404   c ′ is formed on each of the furrows  404   c  of the selecting hole  404   a  of the selecting wheel  404 . 
     Thus when the selecting bar is shifted to the left and right by grasping the handle  412   a,  the fingers  412   b  are easily shifted and inserted into the furrows  404   c.  In a stationary state, the protuberances  412   c  of the fingers  412   b  are halted by the triangular protuberances  404   c ′ so as to be engaged into the selecting hole  404   a  of the selecting wheel  404 . Therefore, they cannot be coupled to an intermediate position. Accordingly, the character blocks can be accurately selected. 
     The guide rod  406  is inserted into the guide hole  406   a  of the selecting bar  412 , and therefore, it moves straightly during the shifting manipulation. The stamping belt  403  is coupled to the selecting wheel  404  and the stamping wheel  405 , and therefore, the characters (letters and numerals) can be arbitrarily selected to stamp prices. 
     FIG. 5-1 is an exploded perspective view showing the tape carrying means  500  of the label stamper according to the present invention. FIG. 5-2 is an exploded perspective view of the tape carrying cartridge according to the present invention. FIG. 5-3 is a perspective view of the tape carrying cartridge. FIG. 5-4 is a longitudinal sectional view of the tape carrying cartridge. FIG. 5-5 is a side sectional view taken along a line A—A of FIG. 5-4. FIG. 5-6 is a side sectional view taken along a line B—B of FIG. 5-4. FIG. 5-7 illustrates the assembled state of the tape carrying cartridge according to the present invention. 
     As shown in FIG. 5-1, the label tape carrying means  500  includes an actuation mechanism A and a carrying cartridge B. 
     The actuation mechanism A includes a hand lever  204   a  movably secured to the main body  101  by means of a supporting shaft  501 . An actuation lever  307  extends from a hand lever  204   a.  An actuation piece  502  extends vertically downward from the middle of the actuation lever  307 . The actuation piece  502  is provided with a connection groove  502   a  which is connected to a crank shaft  505   b  of the cartridge. 
     In the place where the actuation piece is disposed, there is a space R for accommodating the cartridge. Into this space, there is assembled the cartridge B by means of fastening screws  510   a  and fastening holes  510 . 
     The principal feature of the present invention in this respect is that the carrying roller is provided in the form of the cartridge. 
     As shown in FIG. 5-2, the tape carrying cartridge B is constituted as follows. That is, between two side plates  503   a  and  503   b  of a cartridge case  503 , there are installed a carrying roller  504  having a plurality of teeth  504   a  and a ratchet wheel  505  by means a supporting shaft  506  and shaft holes  505   a ′. In a recess  504   b  of the carrying roller  504 , there are formed a plurality of shaft holes  504 ′ in which ratchet poles  504   c  are inserted, the ratchet poles  504   c  forming a circular contour. 
     Free ends  504   c ′ of the ratchet poles  504   c  are contacted to a ratchet gear  505   a  of the ratchet wheel  505 . Thus only when the ratchet wheel rotates in one direction, the carrying roller  504  revolves, while when the ratchet wheel  505  is rotated in the opposite direction, the carrying roller  504  maintains a stationary state. A crank shaft  505   b  of the ratchet wheel  505  is inserted into an elongate arcuate slot  503   c  of the side plate  503   a  of the cartridge to be exposed to the outside. Thus this crank shaft  505   b  is connected to a connection piece  502  of the actuation piece  502  shown in FIG. 5-1. Therefore when the actuation piece  502  actuates to the left and right in accordance with the actuation of the actuation lever  307  as a result of the manipulation of the hand lever  204   a,  the ratchet wheel  505  is rotated clockwise or anticlockwise owing to the actuation of the crank shaft  505   b.  However, the carrying roller  504  is interlocked to one direction rotation of the ratchet wheel  505 . 
     Beneath the cartridge, a guide roller  508  is installed by means of a supporting shaft  506   a  and a shaft hole  508   a.  Both ends of the supporting shaft  506   a  are coupled to fastening holes  506   a ′ of the side plates  503   a  and  503   b  by means of fastening screws  510   a.  The guide roller  508  plays the role of guiding the label tape  106  to the carrying roller  504 . 
     Above the carrying roller  504 , there are installed tape push plates  507  by means of coupling portions  507   a  and  507   b  and the supporting shafts  506   a  and  506   b.  The tape  106  which is guided by the guide roller  508  and the tape push plates  507  is engaged with the teeth  504   a  of the carrying roller  504 . Therefore, in accordance with the rotation of the carrying roller, the tape  106  is pulled to be carried. When the tape is carried, the stamped labels are carried to the attaching roller  207  to be attached onto commodities. 
     Further, beneath the carrying roller  504 , there is installed a directing plate  509  on the side plates  503   a  and  503   b  of the cartridge by means of the supporting shaft  506   c  and the shaft hole  509   a,  for directing the tape  106  to the outside. 
     The supporting shaft  506   c  is inserted into a hole  506   c ′ of the side plate  503   b,  and is fastened by means of screws (not shown in the drawing). Supporting rods  506   d  are inserted into holes  506   d ′ of the side plate  503   b,  and are fastened by means of screws (not shown in the drawing). 
     Thus the carrying roller is provided in the form of a cartridge, and the cartridge B is inserted into the cartridge loading compartment R of the main body  101  so as to be fastened by means of screws (not shown in the drawing) and fastening holes  510  as shown in FIG. 5-7. The cartridge B can be replaced by loosening the screws. 
     As shown in FIG. 5-7, the label stamper according to the present invention can be operated as follows. That is, if the handle  204  and the hand lever  204   a  are held by hand, and if the two are pressed together like when manipulating a scissor, then the actuation lever  307  moves downward. As a result, ink is spread on the relevant character block of the stamping belt  403  by the ink roller Ro, and the price is stamped on the label  106   a  which is held between the push plate  303  and the base plate  206 . Then if the grasped hand lever  204   a  is released, then the hand lever  204   a  is spread owing to the elastic restoring force of the torsion spring  204   s.  At the same time, the actuation lever  307  moves upward. Thus the stamping device P is restored to the original position. Under this condition, the actuation piece  502  moves to the left and right, so that the crank shaft  505   b  of the carrying cartridge would be rotated clockwise and counterclockwise. 
     Accordingly, the ratchet wheel  505  is rotated, with the result that the carrying roller  504  revolves as much as the rotated angle of the ratchet wheel  505 . Owing to the rotation of the carrying roller  504 , the tape which is partly wound on the carrying roller is carried. The carrying distance is equal to the width of a label  106   a  which is attached on the tape. When the ratchet wheel  505  is restored, the reverse revolutions are prevented owing to a stopper  504   s  of the side plate  503   b  and an engaging step  504   s ′. Therefore, the carrying roller is driven only in one direction. Thus the labels which are repeatedly stamped are carried to the attaching roller  207  so as to be attached onto commodities by being pressed onto the commodities. The stamped labels are attached on the tape, but owing to the sharp triangular edge of the base plate  206 , the tape is bent at that point, so that the labels would be detached from the tape. The tape plays the role of a conveyor for the labels, and this is a known feature. 
     The tape loading means  100 , the tape guide means  200 , the label tape holding means  300 , the label stamping means  400  and the tape carrying means  500  in the label stamper according to the present invention have novel features compared with the conventional ones. Thus the loading case is made to project to the outside of the main body, so that the tape can be loaded in a speedy and simple manner. 
     Further, a side of the guide channel is open, and therefore, the tape can be easily inserted into the guide channel. Further, the tape guiding distance is short. 
     The tape holding means presses the tape onto the base plate in an automatic manner owing to the up and down movements of the loading case. Therefore additional devices are not needed unlike the conventional ones. Therefore, an attention is not required to the pressing of the tape onto the base plate. 
     The selecting hole of the selecting wheel of the stamping means is provided with recesses and triangular protuberances. Therefore, owing to the triangular protuberances, the fingers of the selecting bar are coupled to only one selecting wheel in an accurate manner. Therefore unlike the conventional ones, the relevant character blocks can be accurately selected and arranged. 
     Particularly, the tape carrying means is provided in the form of a cartridge. Therefore the manufacturing cost for the label stamper can be reduced in carrying out its mass production. Further, if the carrying roller is damaged during the use, it can be replaced in a simple manner, and therefore, the label stamper can be conveniently used even in a crowded store.