阅读说明：本技术 一种便利爬升式群组药箱系统及控制方法 (Convenient climbing type group medicine box system and control method ) 是由 孔令华 殷江 游通飞 于 2019-11-04 设计创作，主要内容包括：本发明提供一种便利爬升式群组药箱系统及控制方法,属于药箱系统技术领域。该便利爬升式群组药箱系统及控制方法包括底盘、第一柜体、药箱柜、卡槽、抽屉、爬升取药件。本发明中的药箱柜为多层,抽屉可以为多个,可以存放多个药品,抽屉卡接于卡槽,爬升取药件升高第一预设长度至第一预设位置,然后爬升取药件拉动抽屉沿着远离卡槽的方向运动第二预设长度至将抽屉从卡槽中脱离落在爬升取药件,接着爬升取药件下降第三预设长度以将抽屉输送至第二预设位置,避免用户拿来梯子进行取药,浪费人力,提高取药效率,提高用户配药的效率,减轻劳动强度。(The invention provides a convenient climbing type group medicine box system and a control method, and belongs to the technical field of medicine box systems. The convenient climbing type group medicine box system and the control method thereof comprise a chassis, a first cabinet body, a medicine box cabinet, a clamping groove, a drawer and climbing medicine taking pieces. The medicine cabinet is provided with a plurality of layers, a plurality of drawers can be arranged, a plurality of medicines can be stored, the drawers are clamped in the clamping grooves, the climbing medicine taking part rises to a first preset position by a first preset length, then the climbing medicine taking part pulls the drawers to move by a second preset length along a direction far away from the clamping grooves until the drawers are separated from the clamping grooves and fall on the climbing medicine taking part, then the climbing medicine taking part descends by a third preset length to convey the drawers to a second preset position, the problem that a user takes a ladder to take medicine is solved, manpower is wasted, the medicine taking efficiency is improved, the medicine dispensing efficiency of the user is improved, and the labor intensity is relieved.)

1. The utility model provides a convenient formula of climbing group medical kit system which characterized in that: including chassis (11), set up first cabinet body (12) on chassis (11), set up multilayer medicine cabinet (13) on first cabinet body (12), set up draw-in groove (131) in medicine cabinet (13), joint in draw-in groove (131), a plurality of drawers (14) for depositing the medicine, be used for rising first predetermined length to first predetermined position and with drawer (14) pulling along the direction motion second predetermined length of keeping away from draw-in groove (131) to with drawer (14) break away from in draw-in groove (131) fall on it after descending third predetermined length in order to carry drawer (14) to climbing of second predetermined position and get medicine spare (2).

2. The conveniently climbing group medicine box system according to claim 1, wherein: each angle of the first cabinet body (12) is respectively provided with a first cylinder (123) with the height equal to the height of the first cabinet body (12), the bottom area of the medicine cabinet (13) is equal to the bottom area of the first cabinet body (12), each angle of the medicine cabinet (13) is respectively provided with a second cylinder (132) with the height equal to the height of the medicine cabinet (13), the bottom area of the second cylinder (132) is equal to the bottom area of the first cylinder (123), and the first end of the first cylinder (123) is flush with the first end of the second cylinder (132).

3. The conveniently climbing group medicine box system according to claim 2, wherein: the climbing medicine taking part (2) comprises a supporting plate, a lifting structure (21) used for lifting the supporting plate and a twitching structure (22) used for moving the drawer (14) for a second preset length along a direction away from the clamping groove (131) when the supporting plate is lifted for the first preset length so as to separate the drawer (14) from the clamping groove (131), wherein the lifting structure (21) descends for a third preset length to a second preset position when the twitching structure (22) drives the drawer (14) to separate from the clamping groove (131).

4. A convenience climbing group medicine box system according to claim 3, wherein: the lifting structure (21) comprises a first rack (211) arranged on the first cylinder (123) and the second cylinder (132), a first motor (213) arranged on the supporting plate, a first rotating shaft sleeved on the first motor (213), a first gear (212) meshed with the first rack (211), and a first gear (212) which is used for driving the first motor (213) to move for a first preset length along a second preset direction on the first rack (211) so as to lift the supporting plate for the first preset length when rotating along the first preset direction, and driving the first motor (213) to move for a third preset length along a fourth preset direction on the first rack (211) so as to lower the supporting plate for the third preset length when rotating along the third preset direction.

5. A convenience climbing group medicine box system according to claim 3 or 4, wherein: the drawing structure (22) comprises a second rack (221) arranged at the bottom end of the drawer (14), a second motor (223) arranged on the supporting plate, a second rotating shaft sleeved on the second motor (223), and a second gear (222) which is used for being meshed with the second rack (221) when the supporting plate is lifted by the lifting structure (21) for a first preset length and driving the second rack (221) to move for a second preset length along a sixth preset direction on the second rack (221) when the second rack (221) and the second motor (223) are meshed with each other and the second motor (223) rotates along the fifth preset direction so as to enable the drawer (14) to move for the second preset distance along a direction far away from the clamping groove (131) to enable the drawer (14) to be separated from the clamping groove (131).

6. A convenience climbing group medicine box system according to claim 1 or 2 or 3 or 4, wherein: the medicine box and cabinet combined rotating device further comprises a rotating piece (3) used for driving the medicine box and cabinet (13) to rotate for a preset angle.

7. The conveniently climbing group medicine box system according to claim 6, wherein: be equipped with spout (121) on chassis (11), rotate piece (3) including setting up in first mounting groove (122) at chassis (11) center, set up in third motor (31) of first mounting groove (122), the top is connected in the bottom of medicine cabinet (13), gyro wheel (33), one end of bottom butt in spout (121) are connected in gyro wheel (33), the other end is connected in the third pivot of third motor (31), be used for driving it to rotate when third motor (31) rotates and make medicine cabinet (13) rotate first support (32) of predetermineeing the angle in order to drive gyro wheel (33).

8. A convenience climbing group medicine box system according to claim 1 or 2 or 3 or 4, wherein: first connecting grooves (111) are formed in the periphery of the chassis (11), and any adjacent chassis (11) are connected through a trotting pin (15) in a mortise and tenon mode.

9. A convenience climbing group medicine box system according to claim 1 or 2 or 3 or 4, wherein: chassis (11) are hexagon chassis (11), first cabinet body (12) are the hexagon cabinet body, medicine cabinet door (13) are hexagon medicine cabinet door (13) that bottom area equals first cabinet body (12) bottom area.

10. A control method of a convenient climbing type group medicine box system is characterized by comprising the following steps:

s1: numbering the medicines stored in the drawer (14) according to the position of the drawer (14) to obtain a medicine position number, and storing the medicine position number information and medicine name information matched with the position number information in a storage module;

s2: the controller acquires target medicine name information to be taken, and calls the storage module to acquire medicine position number information matched with the target medicine name information;

s3: the controller acquires the rotation angle of the medicine cabinet (13) according to the medicine position number information and controls the third motor (31) to drive the roller (33) to rotate the medicine cabinet (13) by a preset angle;

s4: the controller controls the first motor (213) to rotate so as to drive the first gear (212) to move on the first rack (211) along a second preset direction for a first preset length to lift the climbing medicine taking piece (2) to a first preset position;

s5: the controller controls the second motor (223) to rotate so as to drive the second gear (222) to move on the second rack (221) for a second preset length along the direction far away from the clamping groove (131) to separate the drawer (14) from the clamping groove (131) in the medicine box cabinet (13);

s6: the controller controls the first motor (213) to rotate to drive the first gear (212) to move on the first rack (211) along a third preset direction for a third preset length so as to convey the drawer (14) to a second preset position.

Technical Field

The invention belongs to the technical field of medicine box systems, and relates to a convenient climbing type group medicine box system and a control method.

Background

Traditional Chinese medicine develops in China to the present, has a great role, and helps patients with diseases to regain health. 12078 kinds of Chinese herbs are recorded in the Chinese medicine dictionary. Plant 11146 species, animal 1581 species and mineral 80 species. The problem of storage of such a large amount of medicinal materials is a problem that pharmacists are very painful. However, the traditional Chinese medicines purchased from the traditional Chinese medicine store are all owned by the pharmacy, and doctors can only be forced to use the medicines which are frequently used by the doctors each time the prescription is made. Once pharmacist or patient proposes the medicine which is not used frequently, the solution seems to be seen only by next pharmacy. Certainly, a large amount of time can be spent to inquire or through the network, find a large-scale traditional Chinese medicine pharmacy and buy the medicinal material, but need the deep pharmacist of skill to move a high instrument like this and probably be the ladder, get it filled on the medicine cabinet of high, extremely wide, possess dense numb, the extravagant manpower.

Disclosure of Invention

The invention provides a convenient climbing type group medicine box system and a control method aiming at the problems in the prior art, and the technical problems to be solved by the invention are as follows: how to provide a convenient climbing type group medicine box system which can be lifted to a first preset position by climbing a medicine taking piece, pull out drawers in a multilayer medicine box cabinet and drive the drawers to descend to a second preset position and a control method.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a convenient formula of climbing group medical kit system, which comprises a base, set up the first cabinet body on the chassis, set up the multilayer medicine cabinet on the first cabinet body, set up the draw-in groove in the medicine cabinet, the joint in the draw-in groove, a plurality of drawers for depositing the medicine, be used for rising first preset length to first preset position and with the drawer pulling along the direction motion second that keeps away from the draw-in groove preset length to break away from the drawer from falling on it after the third preset length in order to carry the climbing of second preset position with the drawer and get the medicine piece.

Preferably, each angle of the first cabinet body is respectively provided with a first cylinder with the height equal to the height of the first cabinet body, the bottom area of the medicine cabinet is equal to the bottom area of the first cabinet body, each angle of the medicine cabinet is respectively provided with a second cylinder with the height equal to the height of the medicine cabinet, the bottom area of the second cylinder is equal to the bottom area of the first cylinder, and the first end of the first cylinder is flush with the first end of the second cylinder.

Preferably, the climbing medicine taking part comprises a supporting plate, a lifting structure and a drawing structure, wherein the lifting structure is used for lifting the supporting plate, the drawing structure is used for moving the drawer along the direction away from the clamping groove by a second preset length when the supporting plate is lifted by the first preset length so as to separate the drawer from the clamping groove, and the lifting structure is used for descending the drawer to a second preset position by a third preset length when the drawing structure drives the drawer to separate from the clamping groove.

Preferably, the lifting structure comprises a first rack arranged on the first cylinder and the second cylinder, a first motor arranged on the support plate, a first rotating shaft sleeved on the first motor, a first gear meshed with the first rack and used for driving the first motor to move on the first rack along a second preset direction for a first preset length so as to lift the support plate for the first preset length when the first motor rotates along the first preset direction, and a first gear used for driving the first motor to move on the first rack along a fourth preset direction for a third preset length so as to lower the support plate for the third preset length when the first motor rotates along the third preset direction.

Preferably, the drawing structure comprises a second rack arranged at the bottom end of the drawer, a second motor arranged on the support plate, a second rotating shaft sleeved on the second motor, and a second gear which is used for being meshed with the second rack when the support plate is lifted by the lifting structure for a first preset length and driving the second rack and the second motor to move for a second preset length along a sixth preset direction on the second rack so as to move the drawer for a second preset distance along a direction far away from the clamping groove to separate the drawer from the clamping groove when the second rack and the second motor are meshed with the second rack and the second motor to rotate along the fifth preset direction.

Preferably, still include and be used for driving the rotation piece that the medical kit cabinet rotated preset angle.

Preferably, be equipped with the spout on the chassis, rotate the piece including set up in the first mounting groove at chassis center, set up in the third motor of first mounting groove, the top is connected in the bottom of medicine cabinet, bottom butt in gyro wheel, the one end of spout are connected in the gyro wheel, the other end of spout is connected in the third pivot of third motor, be used for driving it when the third motor rotates and rotate in order to drive the gyro wheel and make the first support of medicine cabinet rotation default angle.

Preferably, first connecting grooves are formed in the periphery of the chassis, and any adjacent chassis are connected through the mortise and tenon joint of the walking pins.

Preferably, the chassis is a hexagonal chassis, the first cabinet body is a hexagonal cabinet body, and the medicine cabinet is a hexagonal medicine cabinet with a bottom area equal to that of the first cabinet body.

A control method of a convenient climbing type group medicine box system comprises the following steps:

s1: numbering the medicines stored in the drawer according to the position of the drawer to obtain a medicine position number, and storing the medicine position number information and medicine name information matched with the position number information in a storage module;

s2: the controller acquires target medicine name information to be taken, and calls the storage module to acquire medicine position number information matched with the target medicine name information;

s3: the controller acquires the rotating angle of the medicine chest according to the medicine position serial number information and controls the third motor to drive the roller to rotate the medicine chest by a preset angle;

s4: the controller controls the first motor to rotate so as to drive the first gear to move on the first rack along a second preset direction for a first preset length to lift the climbing medicine taking piece to a first preset position;

s5: the controller controls the second motor to rotate so as to drive the second gear to move on the second rack along the direction far away from the clamping groove by a second preset length to separate the drawer from the clamping groove in the medicine chest and cabinet;

s6: the controller controls the first motor to rotate so as to drive the first gear to move on the first rack along a third preset direction for a third preset length to convey the drawer to a second preset position.

The medicine cabinet is provided with a plurality of layers, a plurality of drawers can be arranged, a plurality of medicines can be stored, the drawers are clamped in the clamping grooves, the climbing medicine taking part rises to a first preset position by a first preset length, then the climbing medicine taking part pulls the drawers to move by a second preset length along a direction far away from the clamping grooves until the drawers are separated from the clamping grooves and fall on the climbing medicine taking part, then the climbing medicine taking part descends by a third preset length to convey the drawers to a second preset position, the problem that a user takes a ladder to take medicine is solved, manpower is wasted, the medicine taking efficiency is improved, the medicine dispensing efficiency of the user is improved, and the labor intensity is relieved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic structural view of the base pan of the present invention;

FIG. 3 is a schematic structural view of a first cabinet according to the present invention;

FIG. 4 is a schematic view of the rotating member of the present invention;

FIG. 5 is a schematic structural diagram of a medicine cabinet in the present invention;

FIG. 6 is a schematic view of the drawer of the present invention;

FIG. 7 is a schematic view of the construction of the kingpin of the present invention;

fig. 8 is a schematic structural diagram of the climbing medicine taking piece in the invention.

In the figure, 11-chassis, 111-first connecting groove, 12-first cabinet body, 121-sliding groove, 122-first mounting groove, 123-first cylinder, 13-medicine cabinet, 131-clamping groove, 132-second cylinder, 14-drawer, 15-horse walking pin, 2-climbing medicine taking piece, 21-lifting structure, 211-first rack, 212-first gear, 213-first motor, 22-drawing structure, 221-second rack, 222-second gear, 223-second motor, 3-rotating piece, 31-third motor, 32-first support and 33-roller.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7 and fig. 8, in the embodiment

Convenient formula group medical kit system that climbs, including chassis 11, set up the first cabinet body 12 on chassis 11, set up multilayer medicine cabinet 13 on the first cabinet body 12, set up draw-in groove 131 in medicine cabinet 13, the joint is in draw-in groove 131, a plurality of drawers 14 for depositing the medicine, be used for rising first preset length to first preset position and pull drawer 14 along keeping away from draw-in groove 131 direction motion second preset length to with drawer 14 break away from in draw-in groove 131 fall the third preset length after it with carry drawer 14 to the climbing of second preset position and get medicine 2.

Here, the medicine chest 13 is the multilayer, drawer 14 can be a plurality of, can deposit a plurality of medicines, drawer 14 joint in draw-in groove 131, it rises first preset length to first preset position to climb to get medicine 2, then it predetermine length to deviating from falling in climbing to get medicine 2 with drawer 14 from draw-in groove 131 along the direction motion second that keeps away from draw-in groove 131 to climb to get medicine 2 and decline the third preset length in order to carry drawer 14 to the second preset position, avoid the user to take the ladder to get medicine, extravagant manpower, the efficiency of getting medicine is improved, the efficiency that the user dispensed medicine is improved, alleviate intensity of labour.

Each angle of the first cabinet body 12 can be equipped with the first cylinder 123 that highly equals the height of the first cabinet body 12 respectively, the bottom area of medicine chest 13 equals the bottom area of the first cabinet body 12, each angle of medicine chest 13 can be equipped with the second cylinder 132 that highly equals the height of medicine chest 13 respectively, the bottom area of second cylinder 132 equals the bottom area of first cylinder 123, the first end of first cylinder 123 and the first end parallel and level of second cylinder 132, first rack 211 of easy to assemble like this makes things convenient for the lift backup pad.

The climbing medicine taking part 2 comprises a lifting structure 21 for supporting the plate and lifting the supporting plate, and a pulling structure 22 for moving the drawer 14 for a second preset length along a direction away from the clamping groove 131 when the supporting plate is lifted for the first preset length so as to separate the drawer 14 from the clamping groove 131, wherein the lifting structure 21 is lowered for a third preset length to a second preset position when the pulling structure 22 drives the drawer 14 to separate from the clamping groove 131. Card slot 131 may be a rectangular parallelepiped.

The lifting structure 21 includes a first rack 211 disposed on the first cylinder 123 and the second cylinder 132, a first motor 213 disposed on the supporting plate, a first rotating shaft sleeved on the first motor 213, a first gear 212 engaged with the first rack 211, and a first gear 212 driving the first motor 213 to move on the first rack 211 along a second preset direction by a first preset length to lift the supporting plate by the first preset length when rotating along the first preset direction, and driving the first motor 213 to move on the first rack 211 along a fourth preset direction by a third preset length to lower the supporting plate by the third preset length when rotating along the third preset direction.

The drawing structure 22 includes a second rack 221 disposed at the bottom end of the drawer 14, a second motor 223 disposed on the support plate, a second rotating shaft sleeved on the second motor 223, and a second gear 222 configured to engage with the second rack 221 when the lifting structure 21 lifts the support plate by a first preset length, and drive the second rack 221 and the second motor 223 to move along a sixth preset direction on the second rack 221 by a second preset length when the second rack 221 and the second motor 223 are engaged with each other and rotate along the fifth preset direction, so as to move the drawer 14 along a direction away from the slot 131 by a second preset distance to disengage the drawer 14 from the slot 131.

The climbing-type group medicine box system as a facility in this embodiment may further include a rotating member 3 for driving the medicine boxes 13 to rotate by a preset angle, so that the target drawer 14 is conveniently rotated by a preset angle to take medicine conveniently.

Be equipped with spout 121 on chassis 11, rotate piece 3 including setting up in the first mounting groove 122 at chassis 11 center, set up in the third motor 31 of first mounting groove 122, the top is connected in the bottom of medicine cabinet 13, bottom butt in spout 121's gyro wheel 33, one end is connected in gyro wheel 33, the other end is connected in the third pivot of third motor 31, be used for driving it to rotate when third motor 31 rotates and make medicine cabinet 13 rotate the first support 32 of presetting the angle in order to drive gyro wheel 33. The sliding groove 121 may be a circular ring body. The first mounting groove 122 may be cylindrical. The gyro wheel 33 can be for 2 of the setting of symmetry in order to support the both ends of medicine cabinet 13 respectively, first support 32 can be 2, second motor 223 can be two-shaft output motor, second motor 223 includes 2 symmetrical third pivots, 2 third pivots are connected respectively in corresponding first support 32, third motor 31 part sets up in first mounting groove 122, third pivot protrusion in first mounting groove 122, first support 32 protrusion in spout 121, the central line of first support 32 and the coincidence of the central line of third pivot, gyro wheel 33 one end articulates in first support 32, gyro wheel 33 rotates around its articulated department with first support 32 and makes things convenient for gyro wheel 33 to remove in spout 121.

Chassis 11 can be equipped with first connecting groove 111 all around, and arbitrary adjacent chassis 11 is through walking 15 mortise-tenon joints of horse pin, and wooden damp deformation, improvement medical kit overall stability of wooden case can effectively be resisted to the mortise-tenon joint structure. The first coupling groove 111 may be a trapezoidal body, and a length of a side of the trapezoidal body near the center of the chassis is greater than a length of a side of the trapezoidal body far from the center of the chassis.

The chassis 11 may be a hexagonal chassis 11, the first cabinet 12 may be a hexagonal cabinet, and the medicine-box cabinets 13 may be hexagonal medicine-box cabinets 13 having a bottom area equal to that of the first cabinet 12. Can lead to whole danger of empting after every layer of medicine box stacks, empty the probability and increase along with the medicine box height-increasing, so chassis 11 adopts the hexagon structure, improves the stability of system. The medicine boxes and cabinets 13 on each layer can be welded together, and the medicine boxes and cabinets 13 can be welded to the first cabinet body 12. Climbing medicine taking part 2 may further include a first circular groove disposed at the first end or the second end of the supporting plate, and attached to the first end of the first cylinder 123 or the first end of the second cylinder 132, the supporting plate may be provided with two symmetrical first circular grooves, the first cylinder 123 may be six, the second cylinder 132 disposed at the top end of the first cylinder 123 may be six, the first rack 211 may be six, the lifting structure 21 may be 2, such that the first motor 213 may be disposed at 2 ends of the supporting plate, the first gear 212 may be 2, a gap is disposed between the middle of the supporting plate and the drawer 14 to prevent the lifting structure 21 from colliding with the unused drawer 14, and the lifting structure 21 is convenient for lifting the supporting plate.

The drug cabinet 13 may have 4 tiers, and each tier of drug cabinet 13 may include 6 symmetrically arranged drawers 14. Drawer 14 surface is decorated with golden material, and the handle of getting it filled of original installation on the box is because adopt automatic getting it filled, also need not install again, so can leave bigger region decorate and write traditional chinese medicine characters or call: fill the tablature, the characters typeface adopts traditional medical kit to use the characters form: black clerical script.

A control method of a convenient climbing type group medicine box system comprises the following steps:

s1: numbering the medicines stored in the drawer 14 according to the position of the drawer 14 to obtain a medicine position number, and storing the medicine position number information and medicine name information matched with the position number information in a storage module;

s2: the controller acquires target medicine name information to be taken, and calls the storage module to acquire medicine position number information matched with the target medicine name information;

s3: the controller acquires the rotation angle of the medicine cabinet 13 according to the medicine position number information and controls the third motor 31 to drive the roller 33 to rotate the medicine cabinet 13 by a preset angle;

s4: the controller controls the first motor 213 to rotate to drive the first gear 212 to move on the first rack 211 along a second preset direction for a first preset length so as to lift the climbing medicine taking part 2 to a first preset position;

s5: the controller controls the second motor 223 to rotate to drive the second gear 222 to move on the second rack 221 in a direction away from the catch 131 by a second preset length to disengage the drawer 14 from the catch 131 in the medicine-box cabinet 13;

s6: the controller controls the first motor 213 to rotate to drive the first gear 212 to move on the first rack 211 along a third predetermined direction for a third predetermined length so as to transport the drawer 14 to the second predetermined position.

The convenient climbing type group medicine box system in this embodiment may further include a controller for controlling the climbing medicine taking member 2 and the rotation member 3, a storage module, and a buzzer controlled by the controller, where the controller may be an Audinuo microcontroller, and the storage module may be a usb disk or a mobile hard disk.

The health-care medicine box comprises a chassis 11, a first cabinet body 12 and a medicine box cabinet 13 to form a first medicine cabinet, any two medicine cabinets are connected through a tenon and mortise of a pin 15, so that the floor is not integrally deformed due to dampness, on the other hand, a medicine cabinet community is combined to form a single medicine cabinet to increase anti-dumping performance, so that a user can place more drawers 14, seven medicine cabinets are connected through a tenon and mortise of a pin 15 to form a medicine cabinet group, the medicine cabinet group is arranged in a honeycomb-shaped arrangement structure, more medicine cabinets can be placed in a room with limited space, the medicine cabinet group can be numbered through letters such as A, B, C, D and the like, each medicine cabinet can be numbered according to letters such as 2 and the like, the number of a middle medicine cabinet 13 is A, sequentially arranged clockwise as B, C, D, E, F, G, each layer of medicine cabinet 13 is provided with 6 directions, corresponding to six surfaces, each surface is provided with a drawer 14, six numbers according to six directions, a number 1 is right ahead, 2 is arranged as an auxiliary prescription, each layer of medicine cabinet 13 also can be provided with a drawer, 2 ~ is arranged as an auxiliary prescription, each layer of medicine cabinet 13 also can be provided with a drawer, a drawer is provided with a drawer, a drawer for a medicine box, a medicine box.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.