Free-range poultry feeds and eats device

文档序号:1895680 发布日期:2021-11-30 浏览:27次 中文

阅读说明:本技术 一种散养家禽喂食装置 (Free-range poultry feeds and eats device ) 是由 姜连俊 于 2021-09-23 设计创作,主要内容包括:本发明公开了一种散养家禽喂食装置,本发明提出的散养家禽喂食装置,能够代替人工自动化将饲料均匀的投放至喂养槽中,具体工作原理为:将车体移动至靠近喂养槽,并使出料管的出口端位于喂养槽的上方,且第一侧壁平行于喂养槽的长度方向;然后启动螺旋推进叶片和驱动部件,以使得饲料从料桶中经波纹管,最终从出料管中排出,进而掉落至喂养槽中,在此过程中,驱动部件能够驱动滑块沿矩形缺口水平移动,从而使得出料管在喂养槽的上方水平移动,进而使得饲料能够均匀的掉落至喂养槽中;整个操作更加便捷,大大降低了劳动强度。(The invention discloses a free-range poultry feeding device which can replace manual automation to uniformly feed into a feeding groove, and the specific working principle is as follows: moving the trolley body to be close to the feeding trough, enabling the outlet end of the discharge pipe to be located above the feeding trough, and enabling the first side wall to be parallel to the length direction of the feeding trough; then starting the spiral propelling blade and the driving part to enable the feed to pass through the corrugated pipe from the charging bucket and finally be discharged from the discharge pipe, and then fall into the feeding groove; the whole operation is more convenient, and the labor intensity is greatly reduced.)

1. A free-range poultry feeding device is characterized by comprising a charging basket, a vehicle body, a material conveying pipe, a material discharging pipe and a material discharging component; the charging bucket is arranged on the vehicle body; the feed barrel is used for storing feed; the conveying pipe is communicated with the bottom of the charging bucket; a spiral propelling blade is arranged in the conveying pipe; the inlet end of the discharge pipe is communicated with the material conveying pipe through a corrugated pipe;

the discharging assembly comprises a sliding block, a screw rod, a nut seat and a driving part; the vehicle body comprises a first side wall which is vertically arranged; the first side wall is provided with a horizontally extending rectangular notch; the sliding block is horizontally arranged in the rectangular notch in a sliding manner; the screw rod is horizontally and rotatably arranged on the first side wall, and the nut seat is matched and sleeved on the screw rod; the sliding block is connected to the nut seat; the driving part is used for driving the screw rod to rotate so as to drive the sliding block to horizontally slide; the discharging pipe is connected to the sliding block, and the outlet end of the discharging pipe faces to one side, far away from the vehicle body, of the first side wall.

2. A poultry feeding apparatus as claimed in claim 1 wherein the wagon body comprises a bottom wall and a second side wall; the second sidewall and the first sidewall are opposite and parallel to each other; the charging bucket is fixed between the first side wall and the second side wall; the lower surface of diapire is provided with a plurality of gyro wheels.

3. A free-range poultry feeding apparatus as claimed in claim 2 wherein the drive means is a first motor; the vehicle body further comprises a third side wall which is vertically arranged; the third side wall is respectively connected to the first side wall and the second side wall; the first motor is arranged on the third side wall; an output shaft of the first motor is connected to the screw rod through a coupler; the screw rod is rotatably connected to one side face, close to the second side wall, of the first side wall.

4. A free-range poultry feeding apparatus as claimed in claim 2 wherein the screw is located above the slide; the screw rod is parallel to the first side wall; the length of the screw rod is greater than that of the rectangular notch in the horizontal direction; the sliding block is connected with the nut seat through a connecting rod.

5. A free-range poultry feeding apparatus as claimed in claim 1 wherein the inner top wall of the rectangular indentation is provided with a first track; a second sliding rail is arranged on the inner bottom wall of the rectangular notch; the first slide rail and the second slide rail are parallel; the top of the sliding block is provided with a first sliding chute; the bottom of the sliding block is provided with a second sliding chute; the first sliding rail is embedded into the first sliding groove in a matched mode; the second sliding rail is embedded into the second sliding groove in a matched mode.

6. A free-range poultry feeding apparatus as claimed in claim 1 wherein the slider is provided with a through hole; the discharge pipe is fixedly embedded in the through hole.

7. A free-range poultry feeding apparatus as claimed in claim 1 further comprising a closure assembly; the sealing assembly comprises a guide pipe, a first partition plate and a second partition plate; the guide pipe is rotatably sleeved at the outlet end of the discharge pipe through a bearing; the guide pipe and the discharge pipe share a central axis; the first partition plate is arranged at the outlet end of the discharge pipe; the first partition plate is semicircular and perpendicular to the central axis of the discharge pipe, and the diameter of the first partition plate is consistent with the inner diameter of the discharge pipe; the second partition plate is arranged in the guide pipe; the second partition plate is semicircular and is perpendicular to the central axis of the discharge pipe; the diameter of the second partition plate is consistent with the inner diameter of the guide pipe;

one side surface of the first partition board far away from the vehicle body is in contact with one side surface of the second partition board close to the vehicle body in a fitting manner.

8. A free-range poultry feeding apparatus as claimed in claim 7 wherein the closure assembly further comprises a locking member; the locking component comprises a locking rod, a locking ring and a locking pipe; a plurality of moving grooves are uniformly and annularly formed in the inner wall of the locking ring; the outer wall of the guide pipe is provided with a plurality of moving rails; the plurality of moving rails are uniformly distributed around the outer wall of the guide pipe in the circumferential direction; the extending direction of the moving rail is parallel to the central axis of the guide pipe;

the number of the moving rails is consistent with that of the moving grooves, and the moving rails correspond to the moving grooves one by one; the moving rails are matched and embedded into the corresponding moving grooves, so that the locking rings are connected to the outer wall of the guide pipe in a sliding mode;

the locking rod is connected to one side, facing the discharge pipe, of the locking ring; the number of the locking rods is multiple; the locking rods are uniformly and circumferentially distributed around the central axis of the locking ring; the locking pipe is connected to one side, close to the guide pipe, of the discharge pipe; the number of the locking pipes is multiple; the locking pipes are uniformly and circumferentially distributed around the central axis of the discharge pipe; the number of the locking pipes is consistent with that of the locking rods, and the locking rods correspond to the locking pipes one to one; the locking rods can be embedded into the corresponding locking tubes.

9. A feeding device for domestic poultry as claimed in claim 3 wherein the inlet end of said tapping pipe communicates with the lower portion of said feeding pipe via a bellows; a second motor is arranged at the bottom of the conveying pipe; the second motor is used for driving the spiral propelling blade to rotate.

10. A free-range poultry feeding apparatus as claimed in claim 9 further comprising a first switch, a second switch and a third switch; the first switch is used for controlling the starting and stopping of the first motor; the second switch is used for controlling the rotation direction of the first motor; the third motor is used for controlling the start and stop of the second motor.

Technical Field

The invention relates to the technical field of poultry feeding apparatuses, in particular to a free-range poultry feeding device.

Background

Poultry refers to birds that are artificially kept, mainly in order to obtain their meat, eggs and feathers; generally animals of Phasianidae and Anatidae such as chicken, duck, goose, etc.; also there are birds of other departments such as turkey, pigeon, quail and various birds that sound, and the in-process of breeding at poultry, it is the important step in poultry breeding to feed the poultry, and current poultry feeding device is mostly ordinary feeding groove, adopts artifical manual mode to place the fodder in feeding the inslot to feed the poultry, intensity of labour is big, and the operation is time-consuming, and is inefficient.

Disclosure of Invention

The invention mainly aims to provide a free-range poultry feeding device, and aims to solve the problems that the conventional poultry feeding device is a common feeding groove, feeds are placed in the feeding groove in a manual mode to feed poultry, the labor intensity is high, the operation is time-consuming, and the efficiency is low.

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

a free-range poultry feeding device comprises a charging basket, a vehicle body, a material conveying pipe, a material discharging pipe and a material discharging assembly; the charging bucket is arranged on the vehicle body; the feed barrel is used for storing feed; the conveying pipe is communicated with the bottom of the charging bucket; a spiral propelling blade is arranged in the conveying pipe; the inlet end of the discharge pipe is communicated with the material conveying pipe through a corrugated pipe;

the discharging assembly comprises a sliding block, a screw rod, a nut seat and a driving part; the vehicle body comprises a first side wall which is vertically arranged; the first side wall is provided with a horizontally extending rectangular notch; the sliding block is horizontally arranged in the rectangular notch in a sliding manner; the screw rod is horizontally and rotatably arranged on the first side wall, and the nut seat is matched and sleeved on the screw rod; the sliding block is connected to the nut seat; the driving part is used for driving the screw rod to rotate so as to drive the sliding block to horizontally slide; the discharging pipe is connected to the sliding block, and the outlet end of the discharging pipe faces to one side, far away from the vehicle body, of the first side wall.

Preferably, the vehicle body includes a bottom wall and a second side wall; the second sidewall and the first sidewall are opposite and parallel to each other; the charging bucket is fixed between the first side wall and the second side wall; the lower surface of diapire is provided with a plurality of gyro wheels.

Preferably, the driving part is a first motor; the vehicle body further comprises a third side wall which is vertically arranged; the third side wall is respectively connected to the first side wall and the second side wall; the first motor is arranged on the third side wall; an output shaft of the first motor is connected to the screw rod through a coupler; the screw rod is rotatably connected to one side face, close to the second side wall, of the first side wall.

Preferably, the screw rod is positioned above the sliding block; the screw rod is parallel to the first side wall; the length of the screw rod is greater than that of the rectangular notch in the horizontal direction; the sliding block is connected with the nut seat through a connecting rod.

Preferably, the inner top wall of the rectangular notch is provided with a first sliding rail; a second sliding rail is arranged on the inner bottom wall of the rectangular notch; the first slide rail and the second slide rail are parallel; the top of the sliding block is provided with a first sliding chute; the bottom of the sliding block is provided with a second sliding chute; the first sliding rail is embedded into the first sliding groove in a matched mode; the second sliding rail is embedded into the second sliding groove in a matched mode.

Preferably, the slide block is provided with a through hole; the discharge pipe is fixedly embedded in the through hole.

Preferably, the device further comprises a closing component; the sealing assembly comprises a guide pipe, a first partition plate and a second partition plate; the guide pipe is rotatably sleeved at the outlet end of the discharge pipe through a bearing; the guide pipe and the discharge pipe share a central axis; the first partition plate is arranged at the outlet end of the discharge pipe; the first partition plate is semicircular and perpendicular to the central axis of the discharge pipe, and the diameter of the first partition plate is consistent with the inner diameter of the discharge pipe; the second partition plate is arranged in the guide pipe; the second partition plate is semicircular and is perpendicular to the central axis of the discharge pipe; the diameter of the second partition plate is consistent with the inner diameter of the guide pipe;

one side surface of the first partition board far away from the vehicle body is in contact with one side surface of the second partition board close to the vehicle body in a fitting manner.

Preferably, the closure assembly further comprises a locking member; the locking component comprises a locking rod, a locking ring and a locking pipe; a plurality of moving grooves are uniformly and annularly formed in the inner wall of the locking ring; the outer wall of the guide pipe is provided with a plurality of moving rails; the plurality of moving rails are uniformly distributed around the outer wall of the guide pipe in the circumferential direction; the extending direction of the moving rail is parallel to the central axis of the guide pipe;

the number of the moving rails is consistent with that of the moving grooves, and the moving rails correspond to the moving grooves one by one; the moving rails are matched and embedded into the corresponding moving grooves, so that the locking rings are connected to the outer wall of the guide pipe in a sliding mode;

the locking rod is connected to one side, facing the discharge pipe, of the locking ring; the number of the locking rods is multiple; the locking rods are uniformly and circumferentially distributed around the central axis of the locking ring; the locking pipe is connected to one side, close to the guide pipe, of the discharge pipe; the number of the locking pipes is multiple; the locking pipes are uniformly and circumferentially distributed around the central axis of the discharge pipe; the number of the locking pipes is consistent with that of the locking rods, and the locking rods correspond to the locking pipes one to one; the locking rods can be embedded into the corresponding locking tubes.

Preferably, the inlet end of the discharge pipe is communicated with the lower part of the delivery pipe through a corrugated pipe; a second motor is arranged at the bottom of the conveying pipe; the second motor is used for driving the spiral propelling blade to rotate.

Preferably, the device further comprises a first switch, a second switch and a third switch; the first switch is used for controlling the starting and stopping of the first motor; the second switch is used for controlling the rotation direction of the first motor; the third motor is used for controlling the start and stop of the second motor.

Compared with the prior art, the invention at least has the following beneficial effects:

the free-range poultry feeding device provided by the invention can replace manual automation to uniformly feed the feed into the feeding groove, and the specific working principle is as follows: moving the trolley body to be close to the feeding trough, enabling the outlet end of the discharge pipe to be located above the feeding trough, and enabling the first side wall to be parallel to the length direction of the feeding trough; then starting the spiral propelling blade and the driving part to enable the feed to pass through the corrugated pipe from the charging bucket and finally be discharged from the discharge pipe, and then fall into the feeding groove; whole operation is more convenient, greatly reduced intensity of labour, has promoted efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic view of an embodiment of a free-range poultry feeding apparatus according to the present invention (feed cap not shown);

FIG. 2 is a schematic view of the cross-sectional structure taken along the line A-A in FIG. 1;

FIG. 3 is an enlarged detail view of the internal structure of FIG. 1 at B;

FIG. 4 is an enlarged internal view of detail C in FIG. 2;

fig. 5 is an enlarged detail internal structure diagram at D in fig. 2.

Description of reference numerals:

110. a vehicle body; 120. a first side wall; 130. a second side wall; 140. a bottom wall; 150. a roller; 160. a grab rail; 170. a rectangular notch; 180. a slider; 190. a charging bucket; 210. a delivery pipe; 220. a second motor; 230. a bellows; 240. a screw rod; 250. a nut seat; 260. a connecting rod; 270. a guide tube; 280. a discharge pipe; 290. a moving rail; 310. a locking ring; 320. a lock lever; 330. a locking tube; 340. a protruding block; 350. a spring; 360. a first separator; 370. a second separator; 380. a first slide rail; 390. a second slide rail; 410. a first chute; 420. a second runner.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a feeding device for free-range poultry.

Referring to fig. 1-5, in one embodiment of the present invention, the poultry feeding apparatus comprises a feed barrel 190, a body 110, a feed pipe 210, a discharge pipe 280, and a discharge assembly; the charging basket 190 is arranged on the vehicle body 110; the feed barrel 190 is used for storing feed; the delivery pipe 210 is communicated with the bottom of the charging basket 190; a spiral propelling blade (not shown) is arranged in the conveying pipe 210; the inlet end of outlet pipe 280 is connected to feed delivery pipe 210 via bellows 230. The auger blades rotate to output feed from the bowl 190 into the bellows 230 and provide the feed with motive force for discharge from the discharge tube 280.

The discharging assembly comprises a sliding block 180, a screw rod 240, a nut seat 250 and a driving part; vehicle body 110 includes a vertically disposed first sidewall 120; the first side wall 120 is provided with a horizontally extending rectangular notch 170; the sliding block 180 is horizontally arranged in the rectangular notch 170 in a sliding manner; the screw 240 is horizontally and rotatably disposed on the first sidewall 120, and the nut seat 250 is fittingly sleeved on the screw 240; the slider 180 is connected to the nut holder 250; the driving part is used for driving the screw rod 240 to rotate so as to drive the sliding block 180 to horizontally slide; tapping pipe 280 is connected to slide block 180, and the outlet end of tapping pipe 280 faces the side of first sidewall 120 away from body 110.

The free-range poultry feeding device provided by the invention can replace manual automation to uniformly feed the feed into the feeding groove, and the specific working principle is as follows: moving the body 110 to close to the feeding trough with the outlet end of the tapping pipe 280 above the feeding trough and the first sidewall 120 parallel to the length of the feeding trough; then, the spiral propelling blade and the driving part are started, so that the feed is discharged from the discharge pipe 280 from the charging bucket 190 through the corrugated pipe 230 and then falls into the feeding groove, and in the process, the driving part can drive the sliding block 180 to horizontally move along the rectangular notch 170, so that the discharge pipe 280 horizontally moves above the feeding groove, and the feed can uniformly fall into the feeding groove; whole operation is more convenient, greatly reduced intensity of labour, has promoted efficiency.

Further, the vehicle body 110 includes a bottom wall 140 and a second side wall 130; the second sidewall 130 and the first sidewall 120 are opposite and parallel to each other; the bucket 190 is fixed between the first sidewall 120 and the second sidewall 130; the bottom surface of the bottom wall 140 is provided with a plurality of rollers 150 (4 in this embodiment). The drive means is a first motor (not shown); body 110 also includes a vertically disposed third sidewall; the third sidewall is connected to the first sidewall 120 and the second sidewall 130, respectively; the first motor is arranged on the third side wall; the output shaft of the first motor is connected to the screw rod 240 through a coupler; the screw 240 is rotatably connected to a side of the first sidewall 120 adjacent to the second sidewall 130. A grab bar 160 is further provided on a side of the third side wall away from the vehicle body 110 to facilitate manual pushing of the vehicle body 110.

Meanwhile, the lead screw 240 is positioned above the slider 180; the lead screw 240 is parallel to the first sidewall 120; the length of the screw 240 is greater than the length of the rectangular notch 170 in the horizontal direction; the slider 180 and the nut seat 250 are connected by a connecting rod 260.

Specifically, the inner top wall of the rectangular notch 170 is provided with a first slide rail 380; the inner bottom wall 140 of the rectangular indentation 170 is provided with a second slide rail 390; the first slide track 380 and the second slide track 390 are parallel; the top of the sliding block 180 is provided with a first sliding chute 410; the bottom of the sliding block 180 is provided with a second sliding chute 420; the first sliding rail 380 is engaged with the first sliding groove 410; the second slide rail 390 is fit into the second slide groove 420. The slider 180 is provided with a through hole (not numbered); the discharge pipe 280 is fixedly inserted into the through hole. Through the technical scheme, the structure and the function of the free-range poultry feeding device are perfected.

In addition, the free-range poultry feeding device further comprises a closing assembly; the closure assembly includes a guide tube 270, a first partition 360 and a second partition 370; the guide pipe 270 is rotatably sleeved at the outlet end of the discharge pipe 280 through a bearing; the guide pipe 270 and the discharge pipe 280 share a central axis; the first partition 360 is disposed at an outlet end of the discharge pipe 280; the first partition plate 360 is semicircular, the first partition plate 360 is perpendicular to the central axis of the discharge pipe 280, and the diameter of the first partition plate 360 is consistent with the inner diameter of the discharge pipe 280; the second partition 370 is disposed in the guide pipe 270; the second partition 370 is semicircular, and the second partition 370 is perpendicular to the central axis of the tapping pipe 280; the diameter of the second partition 370 is identical to the inner diameter of the guide pipe 270.

One side of first partition 360 remote from vehicle body 110 is in abutting contact with one side of second partition 370 close to vehicle body 110.

Through the technical scheme, when the guide pipe 270 rotates relative to the discharge pipe 280, the overlapping area between the first partition plate 360 and the second partition plate 370 can be adjusted, so that the discharge speed of the feed in the discharge pipe 280 is adjusted, and the outlet end of the discharge pipe 280 can be completely sealed when the feed is not required to be discharged (for example, the vehicle body 110 is pushed to the next feeding groove), so that the purpose of temporarily not discharging the feed is achieved.

In addition, the closure assembly further comprises a locking member; the locking member includes a locking rod 320, a locking ring 310, and a locking tube 330; a plurality of moving grooves (4 in the embodiment) are uniformly and annularly formed on the inner wall of the locking ring 310; the outer wall of the guide pipe 270 is provided with a plurality of moving rails 290 (4 in this embodiment); a plurality of moving rails 290 are evenly distributed circumferentially around the outer wall of the guide tube 270; the moving rail 290 extends in parallel with the central axis of the guide tube 270.

The number of the moving rails 290 is the same as that of the moving grooves, and the moving rails 290 correspond to the moving grooves one to one; the moving rail 290 is fittingly inserted into the corresponding moving groove to slidably couple the locking ring 310 to the outer wall of the guide tube 270.

The locking lever 320 is connected to the side of the locking ring 310 facing the tapping pipe 280; the number of the lock levers 320 is plural; the plurality of locking rods 320 are evenly circumferentially distributed about the central axis of the locking ring 310; the locking pipe 330 is connected to a side of the discharge pipe 280 adjacent to the guide pipe 270; the number of the locking tubes 330 is plural; the plurality of locking pipes 330 are uniformly and circumferentially distributed around the central axis of the discharge pipe 280; the number of the locking pipes 330 is the same as that of the locking rods 320, and the locking rods 320 correspond to the locking pipes 330 one by one; the locking rods 320 can be inserted into the corresponding locking tubes 330.

The locking member can lock the position between the guide tube 270 and the discharge tube 280, and in particular, when the guide tube 270 needs to be rotated, the locking rod 320 is pulled out of the locking tube 330, and when the position between the guide tube 270 and the discharge tube 280 needs to be locked, the locking rod 320 is inserted into the corresponding locking tube 330. The closure assembly further comprises a resilient member; the number of elastic members is at least 2 (4 in the present embodiment); each elastic component is distributed in a central symmetry way by the central axis of the guide pipe 270; the elastic member includes a spring 350 and a protrusion block 340; the protrusion block 340 is connected to the outer wall of the guide tube 270; one end of the spring 350 is connected to the locking ring 320, and the other end of the spring 350 is connected to the protrusion block 340; the spring 350 is in a compressed state.

By providing a resilient element, the spring force of the spring 350 causes the locking ring 310 to have a tendency to move closer to the tapping pipe 280, i.e. to cause the locking rod 320 to have a tendency to engage in the locking pipe 330, which facilitates locking of the position between the guide pipe 270 and the tapping pipe 280.

Meanwhile, the inlet end of the discharging pipe 280 is communicated with the lower part of the feeding pipe 210 through the corrugated pipe 230; the bottom of the material conveying pipe 210 is provided with a second motor 220; the second motor 220 is used for driving the spiral propelling blade to rotate. The present free-range poultry feeding apparatus further comprises a first switch (not shown), a second switch (not shown), and a third switch (not shown); the first switch is used for controlling the starting and stopping of the first motor; the second switch is used for controlling the rotation direction of the first motor; the third motor is used to control the start and stop of the second motor 220. Through the technical scheme, the structure and the function of the free-range poultry feeding device are perfected.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

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