CA1318280C - Coin sorter with counter and brake mechanism - Google Patents
Coin sorter with counter and brake mechanismInfo
- Publication number
- CA1318280C CA1318280C CA000581367A CA581367A CA1318280C CA 1318280 C CA1318280 C CA 1318280C CA 000581367 A CA000581367 A CA 000581367A CA 581367 A CA581367 A CA 581367A CA 1318280 C CA1318280 C CA 1318280C
- Authority
- CA
- Canada
- Prior art keywords
- shaft
- actuating assembly
- disc
- motor
- coins
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D3/00—Sorting a mixed bulk of coins into denominations
- G07D3/16—Sorting a mixed bulk of coins into denominations in combination with coin-counting
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D3/00—Sorting a mixed bulk of coins into denominations
- G07D3/12—Sorting coins by means of stepped deflectors
- G07D3/128—Rotary devices
Abstract
Abstract A coin sorter having a rotatable disc includes a brake mechanism for stopping rotation of the disc in response to a predetermined number of counted coins. The disc is driven through a gear train by an electric motor.
The brake mechanism includes an electromagnetic actuating assembly and an armature mounted on the shaft of a motor.
Upon energization of the actuating assembly, the armature is drawn into contact with the actuating assembly to provide a braking pressure which halts rotation of the motor and the disc.
The brake mechanism includes an electromagnetic actuating assembly and an armature mounted on the shaft of a motor.
Upon energization of the actuating assembly, the armature is drawn into contact with the actuating assembly to provide a braking pressure which halts rotation of the motor and the disc.
Description
131~
BACRGRQ~ND OF T~ INVENTION
1 O ~'he Xnv~antion The presen~ invention relate~ generally to coin sorters of the ~ype which u~e a rotatable dl~c having a resilient surface opera~ing with an adjacent ~tationary guide plate and, more particularly, to such sorters which have a counter for counting the number of coins .~orted and a br~ke for stopping the disc wh~n th~ counter indicates that a presslected number of coins have been sorted.
., aUMMARY OF $H~ XNV~N~IO~
It is a primary object of the present invention to provide a coin sorter of the type described above which has an imp~oved drive and brake system for stopping the rotatable disc quickly and reliably over a large number of operating cycles.
; It is another important object of this invention to p~ovide such a coin sorter having a drive and brake system which is relatively inexpensive to install and maintain.
A further object of the invention is to provide such a coin sorter having a drive and brake system which permits the use of a relatively small brake mechanism.
Other objects and advantages of the in~ention will become apparent from the ~ollowing detailed description and the accompanying drawings.
BACRGRQ~ND OF T~ INVENTION
1 O ~'he Xnv~antion The presen~ invention relate~ generally to coin sorters of the ~ype which u~e a rotatable dl~c having a resilient surface opera~ing with an adjacent ~tationary guide plate and, more particularly, to such sorters which have a counter for counting the number of coins .~orted and a br~ke for stopping the disc wh~n th~ counter indicates that a presslected number of coins have been sorted.
., aUMMARY OF $H~ XNV~N~IO~
It is a primary object of the present invention to provide a coin sorter of the type described above which has an imp~oved drive and brake system for stopping the rotatable disc quickly and reliably over a large number of operating cycles.
; It is another important object of this invention to p~ovide such a coin sorter having a drive and brake system which is relatively inexpensive to install and maintain.
A further object of the invention is to provide such a coin sorter having a drive and brake system which permits the use of a relatively small brake mechanism.
Other objects and advantages of the in~ention will become apparent from the ~ollowing detailed description and the accompanying drawings.
- 2 - ~ 3 ~ 8~ 3 ~
In ~ccordance with the present invention, the foregoin~ obiectives are realized by providing a coin sorter having a rotatable disc with a resilient surface and a stationary ~uide plate positioned adjacent to the resilient surface for guiding coins on the resilient surface as the disc is rotated; counting means for countin~ coins of at least one denomination as the coins are processed ~y the sor~er; an ~lectric mo~or having an outpu~ shaf~ for dri~ing the rotatable disc; a speed-reducing year train connected between the output shaft of the electric motor and the rotatable disc; and braXing means responsive to the counting means for stopping the rotatable disc when a preselec~ed number of coins have been counted, the braking means being connected to the output shaft of the motor. The braking means preferably comprises an armature fixed to the output sha~t of said motor and including a disc forming a flat surface to which braking prassure can be applied, and an elec~romagnetic actua~or for applying braking pressure to the flat surface of said disc when said actuator is supplied with electrical power.
~RIBF DE~CRIPTIO~T 0~ ~E ~R~WING~
... . .
FIG. 1 is a vertical section of a coin sorter embodyin~ the present invention;
FIG. 2 is a perspective view, on a reduced scale, of the coin sorter shown in FIG. l; and ~ 'IG. 3 is a vertical section of the brake mechanism inrluded in the coin sorter of F~s. 1 and 2.
~182~
In ~ccordance with the present invention, the foregoin~ obiectives are realized by providing a coin sorter having a rotatable disc with a resilient surface and a stationary ~uide plate positioned adjacent to the resilient surface for guiding coins on the resilient surface as the disc is rotated; counting means for countin~ coins of at least one denomination as the coins are processed ~y the sor~er; an ~lectric mo~or having an outpu~ shaf~ for dri~ing the rotatable disc; a speed-reducing year train connected between the output shaft of the electric motor and the rotatable disc; and braXing means responsive to the counting means for stopping the rotatable disc when a preselec~ed number of coins have been counted, the braking means being connected to the output shaft of the motor. The braking means preferably comprises an armature fixed to the output sha~t of said motor and including a disc forming a flat surface to which braking prassure can be applied, and an elec~romagnetic actua~or for applying braking pressure to the flat surface of said disc when said actuator is supplied with electrical power.
~RIBF DE~CRIPTIO~T 0~ ~E ~R~WING~
... . .
FIG. 1 is a vertical section of a coin sorter embodyin~ the present invention;
FIG. 2 is a perspective view, on a reduced scale, of the coin sorter shown in FIG. l; and ~ 'IG. 3 is a vertical section of the brake mechanism inrluded in the coin sorter of F~s. 1 and 2.
~182~
While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof have been shown by way of example in the drawings and will be described herein in detail. It ~hould be und~rstood, however, that it is not intended to limit the invention to the particular forms disclosed, but, on the contrary, the intention is to cover all modifications, equivalents and alternatives ~alling wi~hin the spirit and scope of the invention AS defined by the appended claims.
I)E5CRIPTION O~ T~IE PREFERRED 13MBODIME~IT
~ urning now to the drawings, there is shown a coin sorter which includes a hopper 10 for rsceiving coins of mixed dPnominations and feeding them through central openings in a housing 11 and an annular sorting head or guid~.plate 12 inside the housing. The coins are deposited on the top surface of a disc 13 mounted for rotation on a splined stub shaft 14 which fits into a hub 15 affixed to the bottom of thè disc. The hub 15 in turn is mounted within ball bearings 16 in the base of the housing 11.
The disc 13 comprises a resilient pad 17 bonded to the top surface of a solid me~al disc 18. The top surface o~ the resilient pad 17 is typically covered with a durable fabric bonded to the pad itself, which is typically made of a resilient rubber material. As the disc 13 is rotated, the coins deposited on the top sur~ace thereof tend to move outwardly over the sur~ace of the pad due to centrifugal force. ~he coins which are lyin~ ~lat on the pad travel outwardly beneath the ~uide plate 12 4 ~ 2 ~
because the underside of this plate is spaced above the pad 17 by a distance which is slightly greater than the thickness of the thickest coin.
The bottom sur~ace of the guide plate 12 is configured to sort the coins by denomination as the coins are rotated beneath the plate 12 by the di~c 13. As illustrated in FIG. 2, different denominations of coins are eventually eject d at different circumferential locations around the periphery of the guide plate 12. The particular configuration of the guide plate surface which effects the sorting may be any of a variety of different de~igns, one example of which is described in the applicant~s copending Canadian patent application No. 547,780, filed September 24, 1987.
It is important that the disc 13 remain flat, without any flexing, twisting or other physical distortion, in order to prevent any mis-sorting of the coins. To provide such stability, the metal disc 18 m~st be made rigid and massive enough to withstand the pressure exerted thereon by the rotating coins as they are pressed down into the pad 17 by the fixed guide plate 12.
In order to drive the disc 13 at a controlled angular velocity, an electric motor 20 is connected to the disc through a speed-reducing gear trainO Thus, the motor 20 has an output shaft 21 which carries a helical pinion gear 22. The pinion 22 meshes with a gear wheel 23 carrying a pinion 24 which, in turn, meshes with a gear wheel 25 on the lower end of the stub shaft 14. With this speed reducing gear train, the di c 13 is typically driven at 200 rpm by a motor turning at 1750 rpm.
`:`
13~3~
~ecause of the torque multiplying effect of the gear train, the output torque of the motor 20 can be much less than the torque required to drive the disc 13. For example, with the type of gear train illustrated, an electric motor producing a starting torque of 84 inch-pounds and a running torque of 60 inch-pounds can bring a 3-pound, ll-inch diame~er disc 13 up to speed within about 0.3 seconds, even when the svrter is loa~ed with coins.
Fox the purpose of coun~ing the number of coins of each ~enomination di~charged from the sorter, an electronic counter 30 receives signals from multiple photosensors Sl-S5 located adjacent the respective.coin discharge paths. These photosensors Sl-S5 normally receivs 1ight from corresponding light sources Ll-L5, but the light beam is interrupted each time a coin passes between one of the sources L1-L5 an~ the corresponding sensor S1-S5. Whenever one of the light beams is interrupted, the interruption produces a positive transition in the electrical output o~ the corresponding photosensor S1~55, and this transition is detected by the counter 30. ~ach positive tran~ition is treated a~ a separate count, and the number o~ coun~s ~rom each sensor is accumulated until it xeaches a preselected lavel.
Typically, the preselected level represents the nu~ber of coins desired in a particular type of receptacle such as a coin bag attached to the sorter.
In accordance with one important aspect of the present invention, a brake mechanism responsive to the counter 30 is connected to the motor output shaft 21 for : stopping the rotating disc 13 when a preselected number of coins have baen counted. When the disc 13 is rotating, it has a moment of inertia which is a function of the mass, siæe and shaps of the disc. The torque applied to the - 6 - 1 31 ~ 2 g~
size and shape of the disc. I~he torque applied to the drive train by the rotating disc is a fun~tion of both the moment of inertia and the angular accelera~ion o~ the di~. In order to bring the rotating disc to a stop, this load torque produced by the disc must be overcome by the braking torque and the frictional resistance applied to the disc by any coins thereon an~ the pressure of the stationary guide plate 12 on those coins. By applying the braking force to the output ~haft o~ the drive motor, a relatively small torque is sufficient to brake the rot~ting disc because the braking ~orque applied to the motor shaft is multiplied by the speed-reducing gear train. Thus, the disc can be quickly and reliably stopped with a relatively inexpensive brake mechani~m which has a long operating life, e.g., in excess of a million operating cycles.
The preferred brake mechanism for use in this invention is an electrically powered disc brake. Thus, in tha illustrative embodiment shown in FIG. 3, an armature 40 mo~mted on the lower end o~ the motor sh~ft 21 forms a disc with a ~lat surface 40a to which braking pressure may be applied to stop the drive train. The armature 40 is mounted for limited axial movement relativP to the shaft 21 by mean~ oE a plurality of spring elements 41. To apply braking pressure to the disc 40, ~ stationary electr~magnetic actuator 42 is mounted dirsctly beneath the disc 40. This actuator 42 includes a ~riotion ring 43 for gripping the disc surface 40a with a minimum of slippage. The actuator also includes a coil 44 which, when energized from an electrical power source, magnetizes a stator 45 to draw the disc 40 into tight engagement with the friction ring ~3. The braking torque thus applied to sha~t 21 is multip]ied by the speed-reducing gaar train and applied to the disc 13 via the stub shaft 14.
31~2'~
One example of a commerci211y a~ailable braka mecharlism of the type described above is the Type FB17 Power-On Disc Brake made by Inertia ~ynamics, Inc. of Collinsville, Connecticut.
To control the enQrgization o~ the el~ctromagnetic brake, the output signal from-the counter 30 i5 supplied to a driver circuit 31 which controla the electrical current fed to the coil 44. This same driver circuit 31 also controls the electrical power su~plie~ to the electric drive motor 20. When the counter output indicates that the desired number of coins have been discharged from one o~ the sorter axit slots, the driver circuit 31 de-energizes the motor 20 and energizes the coil 44 so that the motor 20 is no longer driving its output shaft when the brake is applied.
The actuator coil 44 is preferably energi~ed initially at a relatively hiyh power level to quickly initiate the braking action, and then at a lower power level to bxing the disc 13 and its drive train to a complete stop. For example, with the particular brake mechanism identified ahove, the driver circuit 31 preferably applies 36 volts acro~s the coil for about 5 milliseconds, and then 12 volts for a further 25 milliseconds. With these voltage levels, the disc 13 can be brought to a complete stop in abou~ 20 milliseconds.
This bra~ing time corresponds to an angular movement of the disc of only about 15 degrees, which is small enough to prevenk the discharge of additional unwanted coins in most situations.
In accordance with a furthe~ aspect of the invention, the helical pinion gear on the output shaft o~ the motor 20 has teeth pitched in a direction to urge the shaft ~ 3 ~
axially away from the electromagnetic actuator of the brake mechanism in response to a driving torque from the motor, so that application o~ a braking torque to the same shaft urges the shaft axially toward to electromagnetic actuator. Thus, in th~ particular embodimel~t illustrated in FI~. ~, the pitch of the ~eeth on the pinion gear 22 produces a force vector in the dlrection o2 the axis of the motor shaft 21 which biases the shaft downwardly so that the armature 40 is urged away ~rom the stationary actuator 42 when the motor is driving the di6c 13 during a sortiny operation. When the motnr is de-energized and the braks energized to stop the disc 13 t the direction of the axial force vector is reversed so that the motor shaft ~1 is biased upwardly to draw the armature 40 toward the electromagnetic actuator 42. This provides a brake boost which supplements the braking force applied by the energization of the electromagnetic actuator.
As can be seen from the foregoing detailed description, this invention provides a coin sorter with an improved drive and brake system which stops the rotatable disc of the sorting mechanism quickly and reliably over a large number of operating cycles. Equally important is the fact that the drive and brake system is relatively inexpensive to install and maintain.
I)E5CRIPTION O~ T~IE PREFERRED 13MBODIME~IT
~ urning now to the drawings, there is shown a coin sorter which includes a hopper 10 for rsceiving coins of mixed dPnominations and feeding them through central openings in a housing 11 and an annular sorting head or guid~.plate 12 inside the housing. The coins are deposited on the top surface of a disc 13 mounted for rotation on a splined stub shaft 14 which fits into a hub 15 affixed to the bottom of thè disc. The hub 15 in turn is mounted within ball bearings 16 in the base of the housing 11.
The disc 13 comprises a resilient pad 17 bonded to the top surface of a solid me~al disc 18. The top surface o~ the resilient pad 17 is typically covered with a durable fabric bonded to the pad itself, which is typically made of a resilient rubber material. As the disc 13 is rotated, the coins deposited on the top sur~ace thereof tend to move outwardly over the sur~ace of the pad due to centrifugal force. ~he coins which are lyin~ ~lat on the pad travel outwardly beneath the ~uide plate 12 4 ~ 2 ~
because the underside of this plate is spaced above the pad 17 by a distance which is slightly greater than the thickness of the thickest coin.
The bottom sur~ace of the guide plate 12 is configured to sort the coins by denomination as the coins are rotated beneath the plate 12 by the di~c 13. As illustrated in FIG. 2, different denominations of coins are eventually eject d at different circumferential locations around the periphery of the guide plate 12. The particular configuration of the guide plate surface which effects the sorting may be any of a variety of different de~igns, one example of which is described in the applicant~s copending Canadian patent application No. 547,780, filed September 24, 1987.
It is important that the disc 13 remain flat, without any flexing, twisting or other physical distortion, in order to prevent any mis-sorting of the coins. To provide such stability, the metal disc 18 m~st be made rigid and massive enough to withstand the pressure exerted thereon by the rotating coins as they are pressed down into the pad 17 by the fixed guide plate 12.
In order to drive the disc 13 at a controlled angular velocity, an electric motor 20 is connected to the disc through a speed-reducing gear trainO Thus, the motor 20 has an output shaft 21 which carries a helical pinion gear 22. The pinion 22 meshes with a gear wheel 23 carrying a pinion 24 which, in turn, meshes with a gear wheel 25 on the lower end of the stub shaft 14. With this speed reducing gear train, the di c 13 is typically driven at 200 rpm by a motor turning at 1750 rpm.
`:`
13~3~
~ecause of the torque multiplying effect of the gear train, the output torque of the motor 20 can be much less than the torque required to drive the disc 13. For example, with the type of gear train illustrated, an electric motor producing a starting torque of 84 inch-pounds and a running torque of 60 inch-pounds can bring a 3-pound, ll-inch diame~er disc 13 up to speed within about 0.3 seconds, even when the svrter is loa~ed with coins.
Fox the purpose of coun~ing the number of coins of each ~enomination di~charged from the sorter, an electronic counter 30 receives signals from multiple photosensors Sl-S5 located adjacent the respective.coin discharge paths. These photosensors Sl-S5 normally receivs 1ight from corresponding light sources Ll-L5, but the light beam is interrupted each time a coin passes between one of the sources L1-L5 an~ the corresponding sensor S1-S5. Whenever one of the light beams is interrupted, the interruption produces a positive transition in the electrical output o~ the corresponding photosensor S1~55, and this transition is detected by the counter 30. ~ach positive tran~ition is treated a~ a separate count, and the number o~ coun~s ~rom each sensor is accumulated until it xeaches a preselected lavel.
Typically, the preselected level represents the nu~ber of coins desired in a particular type of receptacle such as a coin bag attached to the sorter.
In accordance with one important aspect of the present invention, a brake mechanism responsive to the counter 30 is connected to the motor output shaft 21 for : stopping the rotating disc 13 when a preselected number of coins have baen counted. When the disc 13 is rotating, it has a moment of inertia which is a function of the mass, siæe and shaps of the disc. The torque applied to the - 6 - 1 31 ~ 2 g~
size and shape of the disc. I~he torque applied to the drive train by the rotating disc is a fun~tion of both the moment of inertia and the angular accelera~ion o~ the di~. In order to bring the rotating disc to a stop, this load torque produced by the disc must be overcome by the braking torque and the frictional resistance applied to the disc by any coins thereon an~ the pressure of the stationary guide plate 12 on those coins. By applying the braking force to the output ~haft o~ the drive motor, a relatively small torque is sufficient to brake the rot~ting disc because the braking ~orque applied to the motor shaft is multiplied by the speed-reducing gear train. Thus, the disc can be quickly and reliably stopped with a relatively inexpensive brake mechani~m which has a long operating life, e.g., in excess of a million operating cycles.
The preferred brake mechanism for use in this invention is an electrically powered disc brake. Thus, in tha illustrative embodiment shown in FIG. 3, an armature 40 mo~mted on the lower end o~ the motor sh~ft 21 forms a disc with a ~lat surface 40a to which braking pressure may be applied to stop the drive train. The armature 40 is mounted for limited axial movement relativP to the shaft 21 by mean~ oE a plurality of spring elements 41. To apply braking pressure to the disc 40, ~ stationary electr~magnetic actuator 42 is mounted dirsctly beneath the disc 40. This actuator 42 includes a ~riotion ring 43 for gripping the disc surface 40a with a minimum of slippage. The actuator also includes a coil 44 which, when energized from an electrical power source, magnetizes a stator 45 to draw the disc 40 into tight engagement with the friction ring ~3. The braking torque thus applied to sha~t 21 is multip]ied by the speed-reducing gaar train and applied to the disc 13 via the stub shaft 14.
31~2'~
One example of a commerci211y a~ailable braka mecharlism of the type described above is the Type FB17 Power-On Disc Brake made by Inertia ~ynamics, Inc. of Collinsville, Connecticut.
To control the enQrgization o~ the el~ctromagnetic brake, the output signal from-the counter 30 i5 supplied to a driver circuit 31 which controla the electrical current fed to the coil 44. This same driver circuit 31 also controls the electrical power su~plie~ to the electric drive motor 20. When the counter output indicates that the desired number of coins have been discharged from one o~ the sorter axit slots, the driver circuit 31 de-energizes the motor 20 and energizes the coil 44 so that the motor 20 is no longer driving its output shaft when the brake is applied.
The actuator coil 44 is preferably energi~ed initially at a relatively hiyh power level to quickly initiate the braking action, and then at a lower power level to bxing the disc 13 and its drive train to a complete stop. For example, with the particular brake mechanism identified ahove, the driver circuit 31 preferably applies 36 volts acro~s the coil for about 5 milliseconds, and then 12 volts for a further 25 milliseconds. With these voltage levels, the disc 13 can be brought to a complete stop in abou~ 20 milliseconds.
This bra~ing time corresponds to an angular movement of the disc of only about 15 degrees, which is small enough to prevenk the discharge of additional unwanted coins in most situations.
In accordance with a furthe~ aspect of the invention, the helical pinion gear on the output shaft o~ the motor 20 has teeth pitched in a direction to urge the shaft ~ 3 ~
axially away from the electromagnetic actuator of the brake mechanism in response to a driving torque from the motor, so that application o~ a braking torque to the same shaft urges the shaft axially toward to electromagnetic actuator. Thus, in th~ particular embodimel~t illustrated in FI~. ~, the pitch of the ~eeth on the pinion gear 22 produces a force vector in the dlrection o2 the axis of the motor shaft 21 which biases the shaft downwardly so that the armature 40 is urged away ~rom the stationary actuator 42 when the motor is driving the di6c 13 during a sortiny operation. When the motnr is de-energized and the braks energized to stop the disc 13 t the direction of the axial force vector is reversed so that the motor shaft ~1 is biased upwardly to draw the armature 40 toward the electromagnetic actuator 42. This provides a brake boost which supplements the braking force applied by the energization of the electromagnetic actuator.
As can be seen from the foregoing detailed description, this invention provides a coin sorter with an improved drive and brake system which stops the rotatable disc of the sorting mechanism quickly and reliably over a large number of operating cycles. Equally important is the fact that the drive and brake system is relatively inexpensive to install and maintain.
Claims (3)
1. In a coin sorter having a rotatable disc with a resilient surface and a stationary guide plate positioned adjacent said resilient surface for guiding coins on said resilient surface as said disc is rotated, counting means for counting coins of at least one denomination as the coins are processed by said sorter, an electric motor having an output shaft for driving said rotatable disc, a speed-reducing gear train connected between the output shaft of said electric motor and said rotatable disc, and a braking means responsive to said counting means for stopping said rotatable disc when a preselected number of coins have been counted, said braking means being connected to the output shaft of said motor and including a stationary electromagnetic actuating assembly and an axially movable armature mounted on said motor shaft for movement into and out of engagement with said actuating assembly in response to energization and de-energization of said actuating assembly, and a helical pinion gear on said motor shaft for connecting said shaft to said gear train, said pinion gear having helical teeth pitched in a direction to urge said shaft axially away from said actuating assembly in response to a driving torque from said motor, so that the application of a braking torque to said shaft urges said shaft axially toward said actuating assembly.
2. In a coin sorter having a rotatable disc with a resilient surface and a stationary guide plate positioned adjacent said resilient surface for guiding coins on said resilient surface as said disc is rotated, counting means for counting coins of at least one denomination as the coins are processed by said sorter, an electric motor having an output shaft for driving said rotatable disc, a speed-reducing gear train connected between the output shaft of said electric motor and said rotatable disc, and a braking means responsive to said counting means for stopping said rotatable disc when a preselected number of coins have been counted, said braking means being connected to the output shaft of said motor and including a stationary electromagnetic actuating assembly and an axially movable armature disc mounted on said motor shaft for movement into and out of engagement with said actuating assembly in response to energization and de-energization of said actuating assembly, said electromagnetic actuating assembly having a friction ring adapted to frictionally engage said armature disc in response to energization of said electromagnetic actuating assembly, and a helical pinion gear on said motor shaft for connecting said shaft to said gear train, said pinion gear having helical teeth pitched in a direction to urge said shaft axially away from said actuating assembly in response to a driving torque from said motor, so that the application of a braking torque to said shaft urges said shaft axially toward said actuating assembly.
3. A coin sorter having a rotatable disc with a resilient surface and a stationary guide plate positioned adjacent said resilient surface for guiding coins on said resilient surface as said disc is rotated, comprising:
counting means for counting coins of a least one denomination as the coins are processed by said sorter, an electric motor having an output shaft for driving said rotatable disc, a speed-reducing gear train connected between the output shaft of said electric motor and said rotatable disc, a brake mechanism connected to the output shaft of said motor and being responsive to said counting means for stopping said rotatable disc when a predetermined number of coins have been counted, said brake mechanism including a stationary electromagnetic actuating assembly and an axially movable armature mounted on said motor shaft for movement into and out of engagement with said actuating assembly in response to energization and de-energization of said actuating assembly, and a helical pinion gear on said motor shaft for connecting said shaft to said gear train, said pinion gear having helical teeth pitched in a direction to urge said shaft axially away from said actuating assembly in response to a driving torque from said motor, so that the application of a braking torque to said shaft urges said shaft axially toward said actuating assembly, and means for initially energizing said brake mechanism at a first power level for a first predetermined period of time and energizing said brake mechanism at a second lower power level for a subsequent second period of time.
counting means for counting coins of a least one denomination as the coins are processed by said sorter, an electric motor having an output shaft for driving said rotatable disc, a speed-reducing gear train connected between the output shaft of said electric motor and said rotatable disc, a brake mechanism connected to the output shaft of said motor and being responsive to said counting means for stopping said rotatable disc when a predetermined number of coins have been counted, said brake mechanism including a stationary electromagnetic actuating assembly and an axially movable armature mounted on said motor shaft for movement into and out of engagement with said actuating assembly in response to energization and de-energization of said actuating assembly, and a helical pinion gear on said motor shaft for connecting said shaft to said gear train, said pinion gear having helical teeth pitched in a direction to urge said shaft axially away from said actuating assembly in response to a driving torque from said motor, so that the application of a braking torque to said shaft urges said shaft axially toward said actuating assembly, and means for initially energizing said brake mechanism at a first power level for a first predetermined period of time and energizing said brake mechanism at a second lower power level for a subsequent second period of time.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US113,869 | 1987-10-27 | ||
| US07/113,869 US4921463A (en) | 1987-10-27 | 1987-10-27 | Coin sorter with counter and brake mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1318280C true CA1318280C (en) | 1993-05-25 |
Family
ID=22351997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000581367A Expired - Lifetime CA1318280C (en) | 1987-10-27 | 1988-10-26 | Coin sorter with counter and brake mechanism |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US4921463A (en) |
| EP (1) | EP0314463B1 (en) |
| JP (1) | JPH01155495A (en) |
| AU (1) | AU608080B2 (en) |
| CA (1) | CA1318280C (en) |
| DE (1) | DE3883347T2 (en) |
Families Citing this family (94)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4966570A (en) * | 1987-07-30 | 1990-10-30 | Ristvedt Victor G | Coin sorting apparatus for sorting coins of selected denominations |
| US4892680A (en) * | 1988-01-11 | 1990-01-09 | Nippon Oil Co., Ltd. | Synthetic lubricating oils and specified naphthalene derivatives for use therein |
| US5141443A (en) * | 1990-05-14 | 1992-08-25 | Cummins-Allison Corp. | Coin sorter with automatic bag-switching or stopping |
| US5299977A (en) * | 1990-05-14 | 1994-04-05 | Cummins-Allison Corp. | Coin handling system |
| US5429550A (en) * | 1990-05-14 | 1995-07-04 | Cummins-Allison Corp. | Coin handling system with controlled coin discharge |
| US5542880A (en) * | 1990-05-14 | 1996-08-06 | Cummins-Allison Corp. | Coin handling system with shunting mechanism |
| US5141472A (en) * | 1990-10-30 | 1992-08-25 | Cummins-Allison Corp. | Disc-type coin sorter with adjustable gaging device |
| US5205780A (en) * | 1991-04-29 | 1993-04-27 | Cummins-Allison Corporation | Disc-type coin sorter with eccentric feed |
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-
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- 1987-10-27 US US07/113,869 patent/US4921463A/en not_active Expired - Lifetime
-
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- 1988-10-25 AU AU24339/88A patent/AU608080B2/en not_active Ceased
- 1988-10-26 CA CA000581367A patent/CA1318280C/en not_active Expired - Lifetime
- 1988-10-27 EP EP88310081A patent/EP0314463B1/en not_active Expired - Lifetime
- 1988-10-27 DE DE88310081T patent/DE3883347T2/en not_active Expired - Lifetime
- 1988-10-27 JP JP63271940A patent/JPH01155495A/en active Pending
-
1990
- 1990-02-05 US US07/475,127 patent/US5055086A/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| EP0314463B1 (en) | 1993-08-18 |
| DE3883347T2 (en) | 1993-12-02 |
| US5055086A (en) | 1991-10-08 |
| AU608080B2 (en) | 1991-03-21 |
| DE3883347D1 (en) | 1993-09-23 |
| AU2433988A (en) | 1989-04-27 |
| US4921463A (en) | 1990-05-01 |
| JPH01155495A (en) | 1989-06-19 |
| EP0314463A2 (en) | 1989-05-03 |
| EP0314463A3 (en) | 1989-12-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed | ||
| MKEC | Expiry (correction) |
Effective date: 20121205 |