The present disclosure relates generally to cassettes for holding sheets, such as cassettes employed by automated banking machines.
Automated banking machines, such as for example, an Automated Transaction Machine (“ATM”) provide the ability to perform a variety of self-service transactions. Types of transactions that can be performed on an ATM include financial transactions, such as deposits and withdrawal. ATMs may also perform a variety of other transactions, including the sale and purchase of tickets, issuance of coupons, check or voucher presentation, the printing of script and a variety of other functions.
Automated Transaction Machines often include one or more cassettes for the storage of documents, either to be dispensed, having been deposited, or both such as as with recycling cassettes. An ATM may contain a plurality of cassettes and this may include a variety of different cassettes, such as for different denominations of currency notes or other notes of value, checks, or other suitable items.
The following presents a simplified overview of the example embodiments in order to provide a basic understanding of some aspects of the example embodiments. This overview is not an extensive overview of the example embodiments. It is intended to neither identify key or critical elements of the example embodiments nor delineate the scope of the appended claims. Its sole purpose is to present some concepts of the example embodiments in a simplified form as a prelude to the more detailed description that is presented later.
In accordance with an example embodiment, there is disclosed herein a catch and release mechanism that can be employed for locking a push plate in a cassette. The catch and release mechanism comprises two gears which interact with a stop. When a force is applied to the first gear to move in a first direction, the first and second gears can move independently to position the release where the release guides the stop around the catch and allows rotation to continue. When a force is applied on the second gear is causing the catch and release mechanism to move in the first direction, the gears can move independently to move (position) the release where the stop will engage the catch, preventing further movement of the push plate.
In accordance with an example embodiment, there is disclosed herein a cassette with a compartment for holding sheets, such as for example currency that comprises a body with a compartment and a front door. The brackets and rails in the compartment have unique shapes and are configured to ensure that the rails are installed in predefined positions. The brackets in the compartment further comprise pockets that provide for adjusting the width between the rails in the compartment. The front door comprises a bracket assembly that fits within the compartment when the front door is closed. The front door's brackets and rails have unique shapes and are also configured to ensure the front door's rails are installed in the proper position. The front door brackets further comprise pockets that provide for adjusting the height of the front door rails
In accordance with an example embodiment, there is disclosed herein a multi-compartment cassette with a transport access door. The transport access door provides access to an internal transport of the cassette without providing access to the contents of the cassette.
The accompanying drawings incorporated herein and forming a part of the specification illustrate the example embodiments.
This description provides examples not intended to limit the scope of the appended claims. The figures generally indicate the features of the examples, where it is understood and appreciated that like reference numerals are used to refer to like elements. Reference in the specification to “one embodiment” or “an embodiment” or “an example embodiment” means that a particular feature, structure, or characteristic described is included in at least one embodiment described herein and does not imply that the feature, structure, or characteristic is present in all embodiments described herein.
The top end 175 includes an optional handle 177 and there is a slot 178 formed in the top end 175 to provide for the passage of notes or other documents between the inside and outside of the cassette 144.
The cassette 144 defines an internal cavity for the storage of notes or other documents. A push plate 179 for urging the documents toward the slot 178 is disposed in the cavity. The push plate 179 may be spring biased, motorized, or both. In this embodiment, the front 171 is a hinged front door to provide access to the internal cavity.
A pathway for the notes or documents to traverse between the cavity and the slot 178 includes a throat 180, a feed wheel 181, and a stripper wheel 182 among other components shown in
The cassette 244 defines two separate internal cavities, an upper cavity, and a lower cavity. A first push plate 279a is disposed in the upper cavity and a second push plate 279b is disposed in the lower cavity. The push plates 279a and 279b are operable to urge notes or other documents disposed in the cavities toward a slot 278. The push plates 279a and 279b may be spring biased, motorized, or both. In this embodiment, the front 271 is a hinged front door to provide access to the upper and lower cavities.
There is an internal transport 284 disposed in a space 283 formed between a rear 272 and a floor of the upper cavity. The internal transport 284 is capable of transporting notes or other documents between an upper end 275 and towards a lower end 276 of the cassette 244.
At an upper end of the internal transport 284 is an upper pathway for the notes or documents to traverse between the cavity and the slot 278. The upper pathway includes an upper feed wheel 281a, and an upper stripper wheel 282a among other components shown in
At a lower end of the internal transport 284 is a lower pathway for the notes or documents to traverse between the lower cavity and the slot 278. The lower pathway includes a lower feed wheel 281b, and a lower stripper wheel 282b among other components shown in
Further, as best shown in
A system for preventing movement of a push plate (or locking the push plate) in a cassette will be explained in
In an example embodiment, the motor coupled with a push plate in a compartment (for example the lower compartment) is inside the compartment and since access to the interior of the compartment is restricted, the motor, or gears coupled with the push plate can't be locked which would prevent movement of the push plate. For example, if while in transport a cassette is dropped, the push plate can move too far and the stack becomes disordered. If the stack becomes disordered, this can cause problems when accepting or dispensing items (such as currency) from the stack.
Described in example embodiments herein is a push plate catch and release mechanism that can prevent movement of the push plate when the motor is not moving the push plate. The push plate stop mechanism prevents the push plate (and stack) from falling more than a predefined (e.g., safe) distance from the slot if the motor is unpowered, the cassette is dropped, and/or subjected to any force that would cause the push plate to move away from the slot. The push plate catch and release mechanism described herein can allow the push plate to be moved manually by customers, in both directions, through its full range of motion as part of normal cassette loading and unloading tasks. The push plate catch and release mechanism described herein allows the motor to drive the push plate, in both directions, through its full range of motion. The push plate catch and release mechanism described herein can be configured to fit in the limited space available inside the dual cassette, and in particular the lower compartment. The push plate catch and release mechanism described herein does not require electronic parts (motors, sensors, solenoids) to be added to the dual cassette to support its function.
As will be described in further detail in an example embodiment herein, infra, the push plate motor drives the push plate up and down through a drivetrain. The drivetrain includes the push plate catch and release mechanism that comprises a catch component and a release component. The catch component and release component are linked together, on a common axis with a limited range of motion relative to each other. A stop part is engaged against the push plate catch and release mechanism when the front (or main) door is closed. When the push plate is driven down by the weight of the stack, the release component is in an inactive position allowing the slot to engage the catch component. The release component is held in the inactive position by the drag from the motor/motor side drivetrain. The catch component engages the stop which prevents further rotation of the push plate catch and release mechanism and stops the push plate motion.
When the motor actively drives the push plate down the release component advances from the inactive position to an active position relative to the stop component. This advancement causes a feature on the release component to prevent the stop component from engaging the catch component and allow further motion of the push plate in a first direction (e.g., downward or away from the slot).
When the front door is opened the stop component disengages from the push plate catch and release mechanism. This allows the push plate to be manually moved through its range of motion to allow loading and unloading of the cassette.
When the push plate is driven or moved in a second direction (e.g., upwards or towards the slot), the configuration of the push plate catch and release mechanism guides the stop component out of the way of the catch component. in other words the stop component, even if engaged by the front door, does not engage the stop when the push plate is moving in direction towards the slot (e.g., upwards) and does nothing to hinder upwards push plate movement
The catch component and release component are arranged in such a way that a braking force is generated on the release component when the catch component is stopping the push plate motion, The braking force helps to prevent dynamic overrun of the mechanism.
In an example embodiment, a feature on the front door takes the load on the stop exerted by the catch, when the door is opened this feature allows the stop to move away from the catch reducing the contact force and allowing the stop to reliably disengage from the catch under all conditions, this was added after the original description of the catch release mechanism)
In the illustrated example, when the push plate 1302 moves in a first direction (down) as indicated by arrow 1336, the catch and release mechanism 1316 the first gear 1318 and second gear 1314 of the catch and release mechanism 1316 rotate counterclockwise. When the push plate 1302 moves in a second direction 1338, the first gear 1318 and second gear 1314 of the catch and release mechanism rotate clockwise. However, as those skilled in the art can readily appreciate, the catch and release mechanism 1316 described herein can be configured where the first direction is clockwise and the second direction is counterclockwise.
In an example embodiment, the push plate 1302 is employed for urging sheets in a stack (such as documents or currency) towards a slot (see e.g., slot 178 in
As noted herein, a problem can occur if movement of the push plate 1302 in direction 1336 is caused by a something other than the motor. For example, if the cassette is dropped during transport. Because the motor 1320, and the gears 1308, 1310, 1322, 1322, 1324 are inside the compartment, locking the push plate 1302 to prevent movement during transport can be difficult without providing access to the interior of the compartment which may not be desirable. As will be described herein, the catch and release mechanism 1316 described herein can prevent movement of the push plate 1302 in direction 1336 and preserve the integrity of the stack of notes.
The first gears are configured so that they rotate with respect to each other. For example, the first gear can be fixed while the second gear can rotate with respect to the first gear, or the second gear can be fixed and the first gear can rotate with respect to the second gear.
In operation, when a force is applied to the first gear 1318 causing the first gear 1318 to rotate in the counterclockwise direction as indicated by arrow 1412, the first gear rotates independently until the release 1328 engages a side 1414 of the surface 1406 extending from the body 1404 of the second gear 1314. Upon the catch 1326 engaging the side 1414 of the surface 1406 of the surface 1406 extending from the body 1404 of the second gear 1314, the first gear 1318 and second gear 1314 rotate together.
In the illustrated example, the second gear 1314 has two arms 1410. Those skilled in the art can readily appreciate that the number of arms 1410, extending from the body 1404 of the second gear 1314 can be any physically realizable number. For example, the number of arms can be selected depending on how far a push is allowed to move in the first direction when the motor is not driving the first gear.
The body 2102 of the cassette 2100 comprises a first compartment 2106 (which may also be referred to herein as the upper compartment) 2106 and a second compartment (which may also be referred to herein as the lower compartment) 2108. the body 2102 of the cassette 2100 further comprises a top side 2110, a bottom side 2112, a left side 2114, a right side 2116, and a rear side 2118 and a front side 2120. When open, the front door 2104 provides access to the interior of the cassette (e.g., compartments 2106 and 2108) via the front side 2120 of the cassette 2100. When the front door 2104 is closed, the front door 2104 engages the top side 2110, the bottom side 2112, the left side 2114, and the right side 2116, and forms the front side 2120 of the body 2102 of the cassette 2100. For ease of illustration, the left side 2114 is illustrated as being transparent.
The first compartment 2106 comprises a floor 2135, a first (right) rail 2122 that has a first shape and is coupled to a first (upper) bracket 2126 and the second (lower) bracket 2128, A second (left) rail 2124 that has a second shape is coupled to the first bracket 2126 and the second bracket 2128. As will be shown and described herein, the first rail 2122, second rail 2124, first bracket 2126, and second bracket 2128 are shaped and configured so that the rails mate with the appropriate side of brackets 2126, 2128 and cannot be inserted in reverse order and/or upside down.
In an example embodiment, as will be described herein, infra, the first bracket 2126 and second bracket 2128 have a plurality of pockets (see e.g.,
The second compartment 2108 comprises a floor 2135, a third (upper) bracket 2156, fourth (lower) bracket 2158. A third rail 2152 with a third shape and fourth rail 2154 having a fourth shape that are coupled with the third bracket 2156 and fourth bracket 2158. As will be shown and described herein, the third rail 2152, fourth rail 2154, upper bracket 2156, and second bracket 2158 are shaped and configured so that the rails mate with the appropriate side of brackets 2156, 2158 and cannot be inserted in reverse order and/or upside down.
In an example embodiment, as will be described herein, infra, the third bracket 2156 and fourth bracket 2158 have a plurality of pockets (see e.g.,
The front door 2104 comprises a first front door bracket assembly 2130 positioned to fit within the first compartment 2106 while the front door is in a closed position, The first front door bracket assembly 2130 comprising a first front door height adjustment bracket 2132, a second front door height adjustment bracket 2134, a third front door height adjustment bracket 2136, a fourth front door height adjustment bracket 2138, a first front door rail 2140 having a fifth shape is configured to engage the first front door height adjustment bracket 2132 and the second front door height adjustment bracket 2134 in a first predefined height position, a second front door rail 2142 having a seventh shape s configured to engage the third height adjustment bracket 2136 and fourth height adjustment bracket 2138 in a second predefined height position and a first rail release lever 2146 The first rail release lever 2146 is configured to bias the first front door rail 2140 against the second front door height adjustment bracket 2134, and the second rail release lever 2148 is configured to bias the second front door rail 2142 against the fourth height adjustment bracket 2138.
The front door 2104, further comprises a second front door bracket assembly 2160 positioned to fit within the second compartment 2108 while the front door is in a closed position. The second front door bracket assembly comprises a fifth front door height adjustment bracket 2164, a sixth front door height adjustment bracket 2166, a seventh front door height adjustment bracket 2168, an eighth front door height adjustment bracket 2170, a third front door rail 2172 having a seventh shape and configured to engage the fifth front door height adjustment bracket 2164 and the sixth front door height adjustment bracket 2166 in a third predefined height position, a fourth front door rail 2174 having an eight shape configured to engage the seventh height adjustment bracket 2168 and eighth height adjustment bracket 2170 in a fourth predefined height position and third and fourth rail release levers 2182, 2184, the third rail release lever 2182 is configured to bias the third front door rail 2172 against the sixth front door adjustment bracket 2164, and the second rail release lever 2184 is configured to bias the fourth front door rail 2174 against the eighth height adjustment bracket 2184.
In an example embodiment, the first shape, second shape, third shape, fourth shape, fifth shape, sixth shape, seventh shape, and eighth shape corresponding to rails 2122, 2124, 2140, 2142, 2152, 2154, 2172, 2174 respectively are unique (e.g., no two shapes are alike). This ensures that the rails are installed on the correct brackets and correct orientation. Thus for example, the first rail 2122 cannot be installed where rails 2124, 2140, 2142, 2152, 2154, 2172 or 2176 belong. As will be described herein infra, rails 2122, 2124, 2140, 2142, 2152, 2154, 2172, 2174 can be installed, adjusted, or removed manually, e.g., without tools.
In the illustrated example the front door 2104 is hingeably attached to the body 2102 via hinges 2190. However those skilled in the art can readily appreciate that any the front door 2104 can be attached to the body 2102 by any suitable technique.
As those skilled in the art can readily appreciate, sheets such as currency notes or other documents, are inserted into the first compartment 2106 and held in place by the first rail 2122, second rail 2124, front door rails 2140, 2142 and floor 2135. The rails 2122, 2124, 2140, 2142 can be adjusted to comport with the size of the sheets being held in the first compartment 2106. Similarly, sheets such as currency notes or other documents, are inserted into the second compartment 2108 and held in place by the third rail 2152, fourth rail 2154, front door rails 2172, 2174 and floor 2135. The rails 2152, 2154, 2172, 2174 can be adjusted to comport with the size of the sheets being held in the second compartment 2108.
In an example embodiment, instead of each rail being unique, the pairs are unique resulting in four unique pairs instead of eight unique rails. For example, rails 2140 and 2142 can be mirrors of each other and brackets 2132, 2134 or 2136, 2138 are configured to accept the rail in the correct direction. Similarly, rails 2122 and 2124, can be mirrors of each other 2152 and 2154 can be the mirrors of each other , and rails 2172 and 2174 can be the mirrors of each other.
In an example embodiment, the distance between the plurality of pockets 2202 on the first side 2204 of bracket 2126 and the plurality of pockets 302 on the first side 2304 of the second bracket 2128 is different than the distance between the plurality of pockets 2202 on the second side 2206 of the first bracket and the plurality of pockets 2302 on the second side 2306 of bracket 2128. In particular embodiments, the height of the window or cutout 2306 is different than the height of the window or cutout 2308.
In an example embodiment, the first rail 2122 has a first length L1 and the second rail 2124 has a length L2. The lengths of L1 and L2 are different to prevent the rails 2122, 2124 from being installed in the wrong side of brackets 2126, 2128. Accordingly, the pockets 2202 and 2302 are positioned in accordance with lengths L1 and L2. Although the illustrated example shows L1 as longer than L2, those skilled in the art should readily appreciate that in other embodiments L2 is longer than L1.
In an example embodiment, snap 2406 has a height H1 and snap 2402 has a height H2. The heights of H1 and H2 are different to prevent the rails 2122, 2124 from being installed on the wrong side of brackets 2126, 2128 and can further ensure that the rails are oriented correctly (e.g., not upside down). Accordingly, windows or cutouts 2306, 2310 are sized to accepts snaps 2406, 2508 respectively. Protrusion 2410 is configured to fit into a selected pocket from the plurality of pockets 2302 on the first side of bracket 128 and protrusion 2510 is configured to fit into a selected pocket from the plurality of pockets 2302 located on the second side 2308 of bracket 2128. In an example embodiment, protrusion 2410 and protrusion 2510 have different lengths for keying to the correct side.
Rail 2154 comprises a first protrusion 2812 at a first end 2814 and a second protrusion 2816 at a second end 2818. In an example embodiment, the first protrusion 8212 and second protrusion 8216 have different configurations to ensure they are installed correctly. In an example embodiment, the lengths of rails 2152, 2154 are different to further ensure that rails 2152, 2154 are installed in the third and fourth predetermined positions respectively.
The protrusions 3302, 3304 at the ends of the rail 2140 are configured differently than the protrusions 3312, 3314 at the ends of the rail 2142. In an example embodiment, rails 2140, 2141 are the same but rotated 180 degrees. In an example embodiment, the protrusions 3302, 3304 are located on a side 3306 of the rail 2140 and the protrusions 3312, 3314 are offset from the side 3316 to ensure rails 2140, 2142 are installed in the fifth and sixth predetermined positions respectively. In an example embodiment, to remove or install rail 2140, the first rail release lever 2146 is moved in direction A1. To remove or install rail 2142, plastic rail release lever 2148 is moved in direction A2.
The protrusions 3332, 3304 at the ends of the rail 2172 are configured differently than the protrusions 3342, 3344 at the ends of the rail 2174. In an example embodiment, rails 2172, 2174 are the same rail but rotated 180 degrees In an example embodiment, the ends 3302, 3304 are located in the middle of the rail 2172 and the protrusions 3342, 3344 are at a side 3346 of rail 2174 to ensure rails 2172, 2174 are installed in the seventh and eighth predetermined positions respectively. In an example embodiment, to remove or install rail 2172 the plastic rail release lever 2182 is moved in direction A3. To remove or install rail 2174, the plastic lever 2184 is moved in direction A4.
Those skilled in the art can readily appreciate the cassette illustrated herein can further comprise other components for transporting sheets to or from the cassette, such as, for example, motors, push plates, feed wheels, stripper wheels, and pathways. These components are not shown for ease of illustration and the example embodiments described herein should not be construed as excluding any additional components. In an example embodiment, rails 2122, 2124, 2140, 2142, 2152, 2154, 2170, 2172 are shaped differently to ensure they are installed in their correct positions. The shape differences may include different lengths, and different configurations at the ends of the rails, such as for example, the height of tabs and/or the location of protrusions at the end of the rail configured to engage the appropriate bracket.
In view of the foregoing structural and functional features described above, a methodology 3400 in accordance with an example embodiment will be better appreciated with reference to
The methodology 3400 begins at 3402. Referring to
At 3404, the first rail (or first compartment first rail) 2122 is installed in the first predetermined position in the first compartment 2106 of the cassette 100. Protrusions 2404, 2410 are inserted into pockets selected from the plurality of pockets 2202, 302 for the desired width. In an example embodiment, the first rail 2122 has a plastic snap 406 sized to fit the correct window or cutout 306 in bracket 2128. To remove the rail 2122, a pulling force is applied to the plastic snap 2406 to pull the plastic snap 2306 away from the bracket 2128.
At 3406, the second rail (or first compartment second rail) 2124 is installed in the second predetermined position in the first compartment 2106 of the cassette 2100. Protrusions 2504, 2510 are inserted into pockets selected from the plurality of pockets 2202, 2302 for the desired width. In an example embodiment, the second rail 2124 has a plastic snap 2506 sized to fit the correct window or cutout 2310 in bracket 2128. To remove the rail 2124, a pulling force is applied to the plastic snap 2506 to pull the plastic snap 2506 away from the bracket 2128.
At 3408, a third rail (or first front door rails) 2140 is installed into a third predetermined position within bracket assembly 2130 on the front door 2104. The third rail 2140 is installed in selected pockets from the plurality of pockets 3202 in the first height adjustment bracket 2132 and the second height adjustment bracket 2134 to achieve a desired height. In an example embodiment, rail release lever 2146 is moved in direction A1 to install rail 2140. Rail release lever 2146 is also moved in direction A1 to remove rail 2140.
At 3410, a fourth rail (or second front door rails) 2142 is installed into a fourth predetermined position within bracket assembly 2130 on the front door 2104. The fourth rail 2142 is installed in selected pockets from the plurality of pockets 3202 in the third height adjustment bracket 2136 and the fourth height adjustment bracket 2138 to achieve a desired height. In an example embodiment, rail release lever 2148 is moved in direction A2 to install rail 2140. Rail release lever 2148 is also moved in direction A1 to remove rail 2140.
At 3412, the fifth rail (or second compartment first rail) 2152 is installed in the fifth predetermined position in the second compartment 2108 of the cassette 2100. Protrusions 2802, 2806 are inserted into pockets selected from the plurality of pockets 2602, 2702 for the desired width. In an example embodiment, the protrusions 2802, 2806 the fifth rail 2152 are sized to fit the correct pockets 2602, 2702 in brackets 2156, 2158. The protrusions 2802, 2806 are configured to ensure that rail 2152 is installed correctly in the fifth predetermined position. In an example embodiment, a force is applied to the bottom 3106 of sheet metal spring 3102 to move the bottom 3106 of sheet metal spring 3102 in direction A and allow rail 2152 to be installed. Similarly, to remove the fifth rail 2152, a force is applied to the bottom 3106 of sheet metal spring 3102 to move the bottom 3106 of sheet metal spring 3102 in direction A until clear of protrusion 2806.
At 3414, the sixth rail (or second compartment second rail) 2154 is installed in the sixth predetermined position in the second compartment 2108 of the cassette 2100. Protrusions 2812, 2816 are inserted into pockets selected from the plurality of pockets 2602, 2702 for the desired width. In an example embodiment, the protrusions 2812, 2816 the sixth rail 2154 are sized to fit the correct pockets 2602, 2702 in brackets 2156, 2158. The protrusions 2812, 2816 are configured to ensure that rail 2154 is installed correctly in the sixth predetermined position. In an example embodiment, a force is applied to the bottom 3106 of sheet metal spring 3102 to move the bottom 3106 of sheet metal spring 3102 in direction A and allow rail 2154 to be installed. Similarly, to remove the sixth rail 2154, a force is applied to the bottom 3106 of sheet metal spring 3102 to move the bottom 3106 of sheet metal spring 3102 in direction A until clear of protrusion 2806.
At 3416, a seventh rail (or third front door rail) 2172 is installed into a seventh predetermined position within bracket assembly 2160 on the front door 2104. The seventh rail 2172 is installed in selected pockets from the plurality of pockets 1202 in the fifth height adjustment bracket 164 and the sixth height adjustment bracket 166 to achieve a desired height. In an example embodiment, rail release lever 2182 is moved in direction A3 to install rail 2172. Rail release lever 2182 is also moved in direction A3 to remove rail 2172.
At 3418, am eighth rail (or third front door rail) 2174 is installed into an eighth predetermined position within bracket assembly 2160 on the front door 2104. The eighth rail 2174 is installed in selected pockets from the plurality of pockets 3202 in the seventh height adjustment bracket 2168 and the eighth height adjustment bracket 2170 to achieve a desired height. In an example embodiment, rail release lever 2184 is moved in direction A4 to install rail 2174. Rail release lever 2184 is also moved in direction A4 to remove rail 2174.
In an example embodiment, the lengths of rails 2140, 2142 is different from the length of rails 2172, 2174. This can further ensure that the wrong rails are not installed in the wrong place.
At 3420, installation of the rails is complete and the cassette 2100 is ready for use. At this point sheets can be placed into the first and/or second compartments 2106, 2108 and the front door 2104 can be closed, and the cassette 2100 can be put into service.
In an example embodiment, when the front door 2104 is open, rail release levers 2146, 2148, 2182, 2184 can be moved to release rails 2140, 2142, 2182, 2184 respectively and allows them to be removed. In an example embodiment, as will be illustrated in
Referring to
The first (upper) compartment 3602 comprises a feedwheel gear 4102A. A first locking lever 4104A is coupled with a first feedwheel gear 4102A. A first spring 4106A biases the first locking lever 4104 to lock the first feedwheel gear 4102A. A first solenoid 4108A is also coupled with the first locking lever 4104A. When energized, the first solenoid 4108A holds the first locking lever 4104A in an unlocked position. If the cassette loses power (or in the case of a cassette with a battery, the cassette loses external power), the first solenoid 4108A becomes de-energized and the first spring 4106A causes the first locking lever 4104A to return to the locked position to lock the first feedwheel 4104A. As those skilled in the art can readily appreciate, locking the first feedwheel prevents someone with access to internal transport 3706 from gaining access to the contents of the first compartment 3602 by turning the first feedwheel 3702A because the first feedwheel 4102A is locked.
In an example embodiment, first (lower) compartment 3602 comprises a feedwheel gear 4102B. A first locking lever 4104B is coupled with a first feedwheel gear 4102B. A first spring 4106B biases the first locking lever 4104 to lock the first feedwheel gear 4102B. A first solenoid 4108B is also coupled with the first locking lever 4104B. When energized, the first solenoid 4108B holds the first locking lever 41046 in an unlocked position. If the cassette loses power (or in the case of a cassette with a battery, the cassette loses external power), the first solenoid 4108B becomes de-energized and the first spring 41066 causes the first locking lever 41046 to return to the locked position to lock the first feedwheel 4104B. As those skilled in the art can readily appreciate, locking the first feedwheel prevents someone with access to internal transport 3706 from gaining access to the contents of the first compartment 3602 by turning the first feedwheel 3702A because the first feedwheel 41026 is locked.
Described above are example embodiments. It is, of course, not possible to describe every conceivable combination of components or methodologies, but one of ordinary skill in the art will recognize that many further combinations and permutations of the example embodiments are possible. Accordingly, this application is intended to embrace all such alterations, modifications and variations that fall within the spirit and scope of the appended claims interpreted in accordance with the breadth to which they are fairly, legally and equitably entitled.