Paper money processing device

Information

  • Patent Grant
  • 6217021
  • Patent Number
    6,217,021
  • Date Filed
    Friday, May 12, 2000
    24 years ago
  • Date Issued
    Tuesday, April 17, 2001
    23 years ago
Abstract
Stacker (2) of the paper money processing device (1) is provided with L-shaped levers (4) whose front end (4a) is formed to be orientated upward and which rotatably support auxiliary rollers (5) at the front end (4a), and a thrusting member (6) which thrusts the L-shaped levers (4) toward a paper money carrier belt (26) of the device main body (22) constantly. The stacker (2) is constructed in such a way that, when it is mounted in the device main body (22), a paper money inserted is held and carried between the auxiliary rollers (5) and the paper money carrier belt (26) by the thrusting force of the thrusting member (6), and when the stacker (2) is removed from the device main body (22), a paper money housed within the stacker (2) is prevented from falling down from the stacker (2) by the L-shaped levers (4).
Description




BACKGROUND OF THE INVENTION




1. Field of the Invention




The present invention relates to a paper money processing device for use in, for example, automatic vending machines, money-changing machines, pachinko ball vending machines and metal token vending machines.




2. Description of the Related Art




Generally, paper money processing devices are mounted in the main bodies of devices such as automatic vending machines which handle paper money (including coupons and so on) to judge the authenticity of the paper money which has been inserted, and to store and house only that paper money which has been deemed authentic.





FIG. 8

is a partially broken schematic side view that shows the main part of a conventional paper money processing device.




The conventional paper money processing device


21


comprises a device main body


22


, and a stacker


52


mounted so as to be attachable to and detachable from the rear surface


22




a


of the main body


22


.




Arranged in the device main body


22


are paper money carrier means


25


which comprises a paper money carrier belt


26


for transporting paper money


101


inserted through a paper money insertion hole


23


along an L-shaped paper money carrier path


24


; paper money identification means


42


which comprises a magnetic head or the like for judging the authenticity of the paper money


101


; and paper money transfer means


35


for transferring to the stacker


52


each piece of paper money


101


judged to be authentic by the paper money identification means


42


one by one.




The paper money carrier means


25


comprises the aforementioned endless paper money carrier belt


26


which extends along a horizontal part


24




a


or a vertical part


24




b


of a paper money carrier path


24


, and paper money carrier belt drive means


31


comprising pulleys


27


,


28


,


29


,


30


which rotate and drive the paper money carrier belt


26


.




The paper money transfer means


35


is, as disclosed in the specification of Japanese Patent Application No. 5-276592 which was previously proposed by the applicants of the subject application, arranged in the longitudinal direction over the opposite sides of the device main body


22


and comprises a pair of paper money guide drums


36


which are supported, taking the top and bottom ends thereof as the axis, so as to be able to rotate freely in one direction. Referring to

FIG. 9

which shows a main part schematic cross-sectional view of

FIG. 8

, the circumferential surface of the paper money guide drums


36


is formed with a slit


36




a,


into which the edge part in the width direction of the paper money


101


inserts, along the vertical part


24




b


of the paper money carrier path


24


. It will be noted that the reference symbols


32


,


33


of

FIG. 9

denote, respectively, the upper chute and the lower chute which form the paper money carrier path


24


.




For details of paper money transfer means


35


, please refer to Japanese Patent Application No. 5-276592.




Meanwhile, the stacker


52


shown in

FIG. 8

comprises a housing


53


in which an opening


53




a


which faces the front surface is formed. As shown in

FIG. 9

, an auxiliary roller


55


for holding the paper money between itself and the paper money carrier belt


26


so as to transport the paper money, is rotatably supported at the bottom edge


53




b


of the housing


53


, and at a portion of the stacker


52


which opposes the paper money carrier belt


26


.




In the conventional paper money processing device


21


, when a paper money


101


is inserted into the paper money insertion hole


23


shown in FIG.


8


and the presence or absence of paper money


101


is detected by a paper money detection sensor not shown in the drawings, the paper money carrier belt


26


rotates in the anti-clockwise direction based on the detected signal, whereby the paper money


101


is horizontally transported along the horizontal part


24




a


of the paper money carrier path


24


by the carrier force thereof. At this time, shutter means


41


is driven and as a result, the shutter is moved to the left direction in the drawing so that the vertical part


24




b


of the paper money carrier path


24


opens wider.




When the paper money


101


is transported approximately 90° upward along the vertical part


24




b


of paper money carrier path


24


, a judgement is made as to the authenticity of the paper money


101


by paper money identification means


42


. If the paper money


101


is judged not to be authentic, the paper money carrier belt


26


reverses (rotates in the clockwise direction) so that the paper money


101


is returned through the paper money insertion hole


23


.




Meanwhile, if the paper money


101


is judged to be authentic by paper money identification means


42


, the forward rotation of the paper money carrier belt


26


is continued based on the detected signal, and the paper money


101


is transported further downstream of the vertical part


24




b.






When the paper money


101


reaches the auxiliary roller


55


shown in

FIG. 9

, the paper money


101


is held between the auxiliary roller


55


and the forward rotating paper money carrier belt


26


whereby further transporting into the downstream slit


36




a


is ensured.




When the front end of the paper money


101


is inserted into the bottom edge of the slit


36




a


of the paper money guide drums


36


, the paper money


101


is simultaneously held between the paper money carrier belt


26


and the edge part of the slit


36




a


of the paper money guide drums


36


. As a result, the paper money


101


is transported further upward along the slit


36




a.


After that, when the paper money


101


is detected as having reached a predetermined position in the slit


23


by a sensor or the like not shown in the drawings, the forward rotation of the paper money carrier belt


26


stops and the paper money guide drums


36


rotate in the same phase in the opposite direction. As a result, the paper money


101


inserted in the slit


36




a


moves parallel to the stacker


52


.




When the paper money


101


, which is moving parallel to the stacker, reaches the stacker


52


, the paper money


101


is held between the outer circumferential surface of the paper money guide drums


36


and a stacker plate, not shown in the drawings, by way of a stacker spring not shown in the drawings. At the same time, it is pushed by a chute not shown in the drawings moving toward the stacker


52


in response to the rotation of the paper money guide drums


36


, so the paper money


101


is released from the slit


36




a.


As a result, it is pushed into and housed with certainty in the stacker


52


.




In this conventional paper money processing device


21


, the stacker


52


can be attached to and detached from the device main body


22


. When the paper money housed within the stacker


52


is to be collected, or a maintenance inspection of the device main body


22


is carried out, the stacker


52


is detached from the device main body


22


so that the operations for the maintenance can be easily carried out.




However, in the conventional paper money processing device


21


, an opening


53




a


which faces the device main body


22


is formed in the stacker


52


in which the paper money


101


is housed. Therefore, there are problems in that, when the device main body


22


is separated from the stacker


52


at the time of a collection of the paper money housed within the stacker


52


or a maintenance inspection of the device main body


22


, the housed paper money


101


of the stacker


52


is liable to fall downward from the stacker


52


.




SUMMARY OF THE INVENTION




An object of the invention is to provide a paper money processing device which can transport the paper money with stability, and which, when the paper money is collected and the like, prevents the falling, as far as possible, of the housed paper money in the stacker.




In order to achieve the above-described objects, the present invention provides a paper money processing device comprising a device main body having a paper money carrier belt for transporting a paper money inserted through a paper money insertion hole; and a stacker removably mounted to the device main body for housing the paper money which is transported by means of the paper money carrier belt, the stacker rotatably supporting an auxiliary roller which is arranged opposing the paper money carrier belt, the auxiliary roller and the paper money carrier belt transporting a paper money by holding the paper money therebetween, characterised in that the stacker is provided with an L-shaped lever whose front end is formed to be orientated upward and rotatably supports the auxiliary roller; and force applying means for thrusting the L-shaped lever toward the paper money carrier belt constantly, whereby the paper money is held and carried between the auxiliary roller and the paper money carrier belt by the thrusting force of the force applying means when the stacker is mounted in the device main body, and the paper money housed in the stacker is prevented from falling from the stacker by the L-shaped lever when the stacker is removed from the device main body.




It will be noted that the other objects and effects of this invention can be confirmed easily by the following detailed description and attached drawings.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a partially broken schematic side view which shows the main part of a stacker that constitutes the paper money processing device according to the present invention;





FIG. 2

is a schematic front view which shows the stacker which constitutes the paper money processing device according to the present invention in a state in which it is mounted on the device main body;





FIG. 3

is a schematic cross-sectional view of the main part which shows the operation of the stacker that constitutes the paper money processing device according to the present invention when it is mounted on the device main body;





FIG. 4

is a schematic cross-sectional view of the main part which shows the operation of the stacker that constitutes the paper money processing device according to the present invention when it is mounted on the device main body;





FIG. 5

is a schematic front view which shows the stacker which constitutes the paper money processing device according to the present invention in a state in which it is separated from the device main body;





FIG. 6

is a schematic cross-sectional view of the main part which shows the operation of the stacker that constitutes the paper money processing device according to the present invention when it is separated from the device main body;





FIG. 7

is a schematic cross-sectional view of the main part which shows the operation of the stacker that constitutes the paper money processing device according to the present invention when it is separated from the device main body;





FIG. 8

is a partially broken schematic side view that shows the main part of a conventional paper money processing device; and





FIG. 9

is a schematic cross-sectional view of the main part that shows the operation of the conventional paper money processing device.











DESCRIPTION OF THE PREFERRED EMBODIMENTS




A detailed description of an embodiment of the paper money processing device according to the present invention is given below.




Referring to

FIG. 1

that is a partially broken schematic side view that shows a state in which the stacker


2


is separated from the device main body


22


, the paper money processing device


1


according to the present invention comprises a device main body


22


of the conventional type shown in

FIG. 8

, and a stacker


2


, which is mounted so as to be freely attachable to and detachable from the rear surface


22




a


of the device main body


22


.




The stacker


2


comprises a housing


3


in which an opening


3




a


which faces toward the front surface is formed, L-shaped levers


4


arranged in the side bottom edge


3




b


of the opening


3




a


of the housing


3


, an auxiliary roller


5


supported so as to have freedom to rotate by way of axis


7


in the front end


4




a


of the L-shaped levers


4


, and the force applying means


6


(

FIG. 3

) which urge the L-shaped levers


4


to the front surface side constantly.




Hooks


10


to prevent falling of the paper money are arranged at the sides of the housing


3


and a paper money reversing prevention lever


11


that protrudes toward the opening


3




a


is arranged in the bottom edge


3




b.


The paper money reversing prevention lever


11


is a 2-level folding lever comprising a first lever element


11




a


and a second lever element


11




b.







FIG. 2

is a schematic front view which shows the state of the stacker


2


when it is mounted on the device main body


22


, and the same reference symbols are used to show the same parts as those of FIG.


1


. As shown in

FIG. 2

, the paper money reversing prevention lever


11


is arranged in the approximate center of the bottom edge


3




b.






Meanwhile, the L-shaped levers


4


shown in

FIG. 1

comprise a front end


4




a


formed in the upward direction and a back edge


4




b


supported by the housing


3


. As shown in

FIG. 2

, the L-shape levers


4


are arranged at the bottom edge


3




b


of the housing


3


on opposite sides of the paper money reversing prevention lever


11


enclosing the latter in the width direction.




Referring to

FIG. 3

which shows the main part schematic cross-sectional view of the paper money processing device


1


, the back edge


4




b


of the L-shaped levers


4


, insert into a support groove


3




c


within the housing


3


, and are engaged with a support part


3




d


of the housing


3


by a guide groove


8


formed in the bottom edge


4




b


side, and by virtue of this, the L-shaped levers


4


are supported to have the freedom to slide across a predetermined distance with respect to the housing


3


.




The force applying means


6


which urges the L-shaped levers


4


to the front surface side of the stacker


2


is a spring arranged in the support groove


3




c


of the housing


3


. The force applying means


6


comprises a front end


6




a


which is connected with the back edge


4




b


of the L-shaped levers


4


, and a back edge


6




b


connected by the housing


3


of the stacker


2


.




It will be noted that the same reference symbols of

FIG. 3

denote the same parts as those of

FIG. 1 and 8

.




Now, the operation of the paper money processing device


1


described above is described below, along with a more detailed description of the configuration of the paper money processing device


1


.




In the paper money processing device


1


, a projecting part


9


is formed at the upper part of the stacker


2


shown in FIG.


1


. By fitting the projecting part


9


of the stacker


2


into a groove for mounting not shown in the drawings formed upper part in the longitudinal direction at the rear surface


22




a


of the device main body


22


, the stacker


2


is mounted in the device main body


22


in the same way as the conventional paper money processing device


21


shown in FIG.


8


.




When the stacker


2


is mounted in the device main body


22


in this way, paper money fall prevention hooks


10


retreat from the opening


3




a


in the stacker


2


as shown in FIG.


2


. In addition, as shown in

FIG. 4

which shows a main part schematic cross-sectional view of the paper money processing device


1


, the paper money reversing prevention lever


11


is arranged between the pair of paper money guide drums


36


.




Further, as shown in

FIG. 3

, the L-shaped levers


4


resist the thrusting force of the force applying means


6


and slide along the guide groove


8


of the support groove


3




c


to the opposite side to the paper money carrier belt


26


(direction of the arrow A). In addition, as shown in

FIG. 4

, the auxiliary rollers


5


rotatably supported by the front end


4




a


of the L-shaped levers


4


are arranged opposite the paper carrier money belt


26


and pressure-contact the paper money carrier belt


26


due to the thrusting force of the force applying means


6


.




With the above configuration, when the paper money


101


is judged to be authentic by paper money identification means


42


arranged in the device main body


22


and is transported to the vertical part


24




b


of the paper money carrier path


24


by the forward rotation of the paper money carrier belt


26


, the paper money


101


can be transported downstream into a slit


36




a


with certainty. This is because the paper money


101


, as shown in FIG.


3


and

FIG. 4

, is held between the auxiliary roller


5


and the paper money carrier belt


26


by the thrusting force of the force applying means


6


.




It will be noted that, after the paper money


101


has been transported into the slit


36




a


as described above, it is grasped between the paper money carrier belt


26


and the edge part of the paper money guide drum


36


and is moved parallel toward the opening


3




a


of the stacker


2


. At this time, the paper money reversing prevention lever


11


is pushed by the bottom edge of the paper money and retreats within a hole not shown in the drawings while resisting against force applying means not shown in the drawings. Therefore, the holding operation of the paper money


101


can be performed smoothly. In addition, when the paper money


101


is housed within the housing


3


of the stacker


2


, the paper money reversing prevention lever


11


is restored by the thrusting force of another force applying means (not shown) to an initial state shown in

FIG. 1

so that the bottom edge of the paper money


101


housed in the housing


3


is covered and restricted at its approximate center by the paper money reversing prevention lever


11


as shown in FIG.


4


. As a result, projection of the approximate center of the paper money in the width direction into the paper money carrier path


24


and obstructing the transportation of the paper money


101


which is next to be housed are prevented.




Meanwhile, for the stacker


2


to be separated from the device main body


22


, the engagement between the abovementioned mounting groove of the device main body


22


and the projecting part


9


of the stacker


2


shown in

FIG. 1

should be released.




When the stacker


2


is separated from the device main body


22


in the above-described manner, the paper money fall prevention hooks


10


project toward the opening


3




a


as shown in

FIG. 5

which shows the separated state of the stacker


2


, and the L-shaped levers


4


slide to the paper money carrier belt


26


(direction of arrow B) due to the thrusting force of the force applying means


6


along the guide groove


8


in the supporting groove


3




c


and are restored to the initial state as shown in FIG.


6


.





FIG. 6

shows the same part as FIG.


3


and is a schematic cross-sectional view of the main part of the paper money processing device


1


, in which the reference symbol


4




c


indicates a stopper which abuts the support part


3




d


of the housing


3


to regulate the slide of the L-shaped levers


4


toward the paper money carrier belt


26


.




Because the front end


4




a


of the L-shaped levers


4


which are restored to the initial state in this way is orientated upward, the bottom edge of the paper money


101


housed within the stacker


2


is covered and restrained by the L-shaped levers


4


from below and from the front surface, and for that reason, when the stacker


2


is separated from the device main body


22


in the paper money processing device


1


, the falling of the paper money


101


housed within the stacker


2


from below the stacker


2


can be prevented.




Accordingly, when a maintenance inspection operation of the device main body


22


or a collection operation of the paper money within the stacker


2


is carried out while the stacker


2


is separated from the device main body


22


, the falling of the paper money


101


housed within the stacker


2


from the stacker


2


can be prevented. By virtue of this, the maintenance inspection operation of the device main body


22


and recovery operation of the paper money


101


housed within the stacker


2


can be carried out simply and safely.




In the paper money processing device


1


, the L-shaped levers


4


are arranged in opposite sides of the stacker


2


in the width direction. Therefore, as in

FIG. 7

in which the parts the same as

FIG. 4

are denoted by same reference symbols, the bottom edge at opposite sides of the paper money


101


in the width direction are covered and restrained by these two L-shaped levers


4


, and the falling of the paper money


101


from the underside of the stacker


2


can, for that reason, be even further prevented.




Further, because the auxiliary rollers


5


are rotatably supported in the front end


4




a


of the L-shaped levers


4


in the paper money processing device


1


, the bottom edge of the paper money


101


housed within the stacker


2


is covered from below and from the front surface by the L-shaped levers


4


, and is also covered and restrained from the front surface by the auxiliary rollers


5


, so the falling of the paper money


101


below the stacker


2


can be even further prevented by the auxiliary rollers


5


.




When the stacker


2


is separated from the device main body


22


in the paper money processing device


1


, the paper money fall prevention hooks


10


project toward the opening


3




a


as shown in FIG.


5


. As a result, the side of the paper money


101


is covered and restrained by the paper money fall prevention hooks


10


. Thus, when the stacker


2


is released from the device main body


22


the falling of the paper money


101


within the stacker


2


from the side of the stacker


2


can be even further prevented.




In the paper money processing device


1


, the paper money reversing prevention lever


11


is arranged in the approximate center of the stacker


2


in the width direction, and, as described above, the paper money reversing prevention lever


11


completes the holding operation of the paper money and restores to the initial state when the stacker


2


is separated from the device main body


22


. Therefore, as shown in

FIG. 7

, the opposite sides at the lower side of the paper money


101


are covered and restrained by the L-shaped levers


4


, and an approximately center at the lower side thereof is restrained and covered by the paper money reversing prevention lever


11


. For this reason, the falling of the paper money


101


housed within the stacker


2


below the stacker


2


can be further prevented.




Accordingly, in the paper money processing device


1


, when the stacker is separated from the device main body


22


and a maintenance inspection operation of the device main body


22


or a collection operation of the paper money


101


from the stacker


2


is carried out, the falling of the paper money


101


housed within the stacker


2


below the stacker


2


can be prevented as far as possible. As a result, the maintenance inspection operation of the device main body


22


and the collection operation of the paper money


101


from the stacker


2


can be carried out even more simply and safely.




It will be noted that, in the paper money processing device


1


of the present embodiment, two L-shaped levers


4


are adopted, and as a result, the falling of the paper money


101


within the stacker


2


as described above is further prevented. However, according to the paper money processing device of the present invention the number of L-shaped levers


4


is not limited to this. By way of example, one L-shaped lever


4


may be arranged to comply with the paper money carrier belt


26


, and in this case as well, the front end


4




a


of the L-shaped lever


4


covers and restrains the underneath of the paper money


101


, and the falling of the housed paper money


101


below the stacker


2


is, as far as possible, prevented.




In addition, the paper money reversing prevention lever


11


in the stacker


2


is provided in the paper money processing device


1


of this embodiment, and when the stacker


2


is separated from the device main body


22


, falling of the paper money within the stacker


2


is also prevented by the paper money reversing prevention lever


11


as described above, thereby to further heighten the preventive effect of the falling of the housed paper money. However, if the paper money processing device of the present invention is provided with an L-shaped lever


4


in the stacker


2


, a paper money reversing prevention lever


11


need not be provided, and it goes without saying that in a paper money processing device of this kind as well, the front end


4




a


of the L-shaped lever


4


covers and restrains the underneath of the paper money


101


wherein the falling of the housed paper money


101


below the stacker


2


can be even further prevented.




In addition, the paper money fall prevention hooks


10


is provided in the paper money processing device


1


of this embodiment, and when the stacker


2


is separated from the device main body


22


, falling of the paper money within the stacker


2


is also prevented by the paper money fall prevention hooks


10


, thereby to further heighten the preventive effect of the falling of the housed paper money. However, if the paper money processing device of the present invention is provided with an L-shaped lever


4


in the stacker


2


, paper money fall prevention hooks


10


need not be, and it goes without saying that in a paper money processing device of this kind as well, the falling of the housed paper money within the stacker


2


can be prevented.




As is described above, because the paper money processing device of the present invention is a paper money processing device which comprises a device main body which comprises a paper money carrier belt for transporting paper money inserted through a paper money insertion hole, and a stacker mounted so as to be attachable to or detachable from the device main body and which in its inner part houses the paper money which is transported by means of the paper money carrier belt, and the stacker is arranged opposing the paper money carrier belt and supports auxiliary rollers which hold and transport the abovementioned paper money between the abovementioned paper money carrier belt so they are able to rotate, and the abovementioned stacker, in which the front end thereof is formed to be orientated upward, comprises L-shaped levers which support the abovementioned auxiliary rollers in the front end, and the force applying means which urge the L-shaped levers to the abovementioned paper money carrier belt side constantly, when the abovementioned stacker is mounted in the abovementioned device main body, the abovementioned paper money is held between the abovementioned auxiliary rollers and is transported, and when the abovementioned stacker is separated from the abovementioned device main body the falling of the abovementioned paper money housed within the abovementioned stacker from the abovementioned stacker is prevented by the L-shaped levers.




Accordingly, a paper money processing device can be provided which, carries paper money with stability, and which, when the paper money is collected or the like, prevents, as far as possible, the falling of the housed paper money within the stacker.




The present invention can be, provided they do not stray from the concept and principal characteristics thereof, embodied in a variety of modes, and for that reason, the above-described embodiment provides an example only in many points and must not be interpreted as being limited to this. The scope of the invention is indicated by the scope of the patent claims and there are absolutely no restrictions in the main text of the specification. Furthermore, the changes and alterations, which fall within the equivalent scope of the scope of the patent claims, will all lie within the scope of the invention.



Claims
  • 1. A paper money processing device comprising:a device main body having a paper money carrier belt for transporting a paper money inserted through a paper money insertion hole; and a stacker removably mounted to the device main body for housing the paper money which is transported by means of the paper money carrier belt, the stacker rotatably supporting an auxiliary roller which is arranged opposing the paper money carrier belt, the auxiliary roller and the paper money carrier belt transporting a paper money by holding the paper money therebetween, characterised in that the stacker is provided with an L-shaped lever whose front end is formed to be orientated upward and rotatably supports the auxiliary roller; and force applying means for thrusting the L-shaped lever toward the paper money carrier belt constantly, whereby the paper money is held and carried between the auxiliary roller and the paper money carrier belt by the thrusting force of the force applying means when the stacker is mounted in the device main body, and the paper money housed in the stacker is prevented from falling from the stacker by the L-shaped lever when the stacker is removed from the device main body.
  • 2. The paper money processing device according to claim 1, wherein the L-shaped lever is arranged in each of opposite sides of the stacker in the width direction.
  • 3. The paper money processing device according to claim 1, wherein the stacker comprises a paper money reversing prevention lever for preventing paper money housed in the stacker from reversing.
  • 4. The paper money processing device according to claim 3, wherein the L-shaped lever is provided in each of opposite sides in the width direction of the stacker so that the paper money reversing prevention lever is interposed therebetween.
  • 5. The paper money processing device according to claim 1, wherein the stacker comprises hooks for preventing paper money from falling down.
  • 6. The paper money processing device according to claim 5, wherein the L-shaped lever is arranged in a lower end of a housing of the stacker, and the hooks for preventing paper money from falling down are arranged on sides of the housing of the stacker.
  • 7. The paper money processing device according to claim 1, wherein the stacker comprises a paper money reversing prevention lever and hooks for preventing paper from falling down.
  • 8. The paper money processing device according to claim 7, wherein the L-shaped lever is arranged in a lower end of a housing of the stacker and on each of opposite sides of the stacker in the width direction so that the paper money reversing prevention lever is interposed therebetween, and the hooks for preventing paper money from falling down are arranged on sides of the housing of the stacker.
Priority Claims (1)
Number Date Country Kind
11-137617 May 1999 JP
US Referenced Citations (4)
Number Name Date Kind
4765607 Zouzoulas Aug 1988
5286017 Hawk et al. Feb 1994
5505439 Watabe et al. Apr 1996
5509646 Chang Apr 1996
Foreign Referenced Citations (2)
Number Date Country
63-208440 Aug 1988 JP
3-46955 Feb 1991 JP