• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    According to an example aspect of the present invention, there is provided a sowing apparatus (1) comprising a seed dispenser (2), wherein the dispenser (2) includes a reciprocating dispensing and metering piston (3) having a seed amount metering space (4) for picking up a desired amount of seeds at a time from a seed container (16) into a compressed-air duct (5), means for producing repeated compressed-air pulses for delivering seeds along the compressed-air duct (5) in a direction downstream from the seed amount metering space (4) to a destination, wherein the sowing apparatus (1) comprises in a direction upstream from the compressedair duct (5) a first compressed-air channel (6) and a second compressed-air channel (7) so that compressedair is guided from the first and second compressed-air channels (6, 7) into the compressed-air duct (5).
    公开号:FI20205198A1
    申请号:FI20205198
    申请日:2020-02-27
    公开日:2021-08-28
    发明作者:Ville Volanen
    申请人:Metsi Oy；
    IPC主号:
    专利说明:

    [0001] [0001] The present invention relates to a sowing apparatus.
    [0002] [0002] Further, the present invention relates to a method for carrying out the sowing of seeds on a desired soil.BACKGROUND
    [0003] [0003] It is known to carry out the sowing in such a manner that the seeds are strewn on the soil by means of free fall or a weak air flow. Thus, the seeds can e.g. be dropped through a seed container gate onto the soil.
    [0004] [0004] Further, document WO 96/07307 Al discloses a method and apparatus for carrying out the sowing of seeds on a soil. The seeds are shot by means of a compressed- — air pulse and a compressed-air tube at a high velocity accurately onto the selected soil, which can be delicately crumbled. The seeds may be partially buried in the soil for facilitating a brisk initial growth. The operator of a machine releases every sowing action and, if desired, selects the grade of seeds. The sowing apparatus comprises a seed dispenser, a compressed-air duct extending from the dispenser to a sowing site, means for 2 20 — producing repeated compressed-air pulses for delivering seeds along the compressed-air N duct from the dispenser to a destination, wherein the dispenser includes a reciprocating S dispensing and metering piston having an adjustable seed amount metering space for N picking up a desired amount of seeds at a time from a seed container into the compressed- I . id air duct. co D 25 [0005] Experience has shown that it is not always possible to blow all of the seeds
    [0006] [0006] In view of the foregoing, it would be beneficial to provide a sowing apparatus, wherein seeds are uniformly shot onto the selected soil, i.e. a specific amount of seeds can repeatedly be shot onto the soil.SUMMARY OF THE INVENTION
    [0007] [0007] The invention is defined by the features of the independent claims. Some specific embodiments are defined in the dependent claims.
    [0008] [0008] According to a first aspect of the present invention, there is provided a sowing apparatus comprising a seed dispenser, wherein the dispenser includes a reciprocating dispensing and metering piston having a seed amount metering space for picking up a desired amount of seeds at a time from a seed container into a compressed-air duct, means for producing repeated compressed-air pulses for delivering seeds along the compressed-air duct in a direction downstream from the seed amount metering space to a destination, wherein the sowing apparatus comprises in a direction upstream from the compressed air duct a first compressed-air channel and a second compressed-air channel so that compressed-air is guided from the first and second compressed-air channels into the compressed-air duct.
    [0009] [0009] Various embodiments of the first aspect may comprise at least one feature from the following bulleted list: e a first exit of the first compressed-air channel is arranged closer to the seed amount o metering space than a second exit of the second compressed-air channel
    [0010] [0010] According to a second aspect of the present invention, there is provided a method for carrying out the sowing of seeds on a desired soil, the method comprising dispensing a number of seeds into a compressed-air duct by transferring the number of seeds from a seed container to the compressed-air duct by a reciprocating dispensing and — metering piston having a seed amount metering space for receiving said number of seeds, blowing the number of seeds onto the soil by a compressed-air pulse, controlling each reciprocating movement of said piston by each release of said compressed-air pulse, and providing said compressed-air pulse to the compressed-air duct via a first compressed-air channel and a second compressed-air channel, wherein the first and second compressed-air — channels are arranged upstream of the compressed-air duct.
    [0011] [0011] Various embodiments of the second aspect may comprise at least one feature from the following bulleted list:
    [0012] [0012] Considerable advantages are obtained by means of certain embodiments of the present invention. A sowing apparatus and a method for carrying out the sowing of seeds on a desired soil are provided. As the sowing apparatus comprises in a direction upstream from the compressed air duct a first compressed-air channel and a second compressed-air channel, compressed air guided via the first compressed-air channel into the direction of the seed amount metering space unsticks the seeds provided in the seed amount metering space. Consequently, all seeds or at least substantially all seeds are blown or shot by the compressed-air pulse through the first compressed-air channel and the second compressed-air channel via the compressed-air duct on a desired soil. Seeds are — uniformly shot onto the selected soil when repeating operation of the sowing apparatus, i.e. a specific amount of seeds can repeatedly be shot onto the soil. Sowing can be carried out reliably, effectively and accurately in the right place. Valuable seeds can be spared and the initial growth thereof can be secured. The partial burial of seeds in the soil promotes germination. The seeds can be uniformly shot at a high velocity during planting. The sowing apparatus is capable of operating from a single location over a wide range. This provides a high working efficiency. The sowing apparatus may also be coupled to a vehicle such as a forest machine.
    [0015] [0015] The sowing apparatus 1 further comprises means for producing repeated compressed-air pulses for delivering seeds along the compressed-air duct 5 in a direction downstream from the seed amount metering space 4 to a destination. Such means for producing repeated compressed-air pulses 17 are commercially available and therefore not 5 shown or described in detail.
    [0016] [0016] Additionally, the sowing apparatus 1 comprises in a direction upstream from the compressed air duct 5 a first compressed-air channel 6 and a second compressed-air channel 7. An exit 8 of the first compressed-air channel 6 is arranged closer to the seed amount metering space 4 than an exit 9 of the second compressed-air channel 7. Thus, compressed air guided via the first compressed-air channel 6 into the direction of the seed amount metering space 4 unsticks the seeds provided in the seed amount metering space 4. Conseguently, all seeds or at least substantially all seeds are blown or shot by the compressed-air pulse through the first compressed-air channel 6 and the second compressed-air channel via the compressed-air duct 5 on a desired soil Seeds are — uniformly shot onto the selected soil when repeating operation of the sowing apparatus.
    [0017] [0017] The compressed-air pulse can be used for simultaneously loading the dispenser 2 with fresh seeds for another sowing operation. The compressed-air pulse is capable of momentarily placing the metering piston 3 lower in the seed container 16 and, upon rising to a top position, a new batch of seeds can be brought up into the compressed- — air duct 5 for the next sowing operation. The amount of seeds can be adjusted to be greater or smaller, for example by varying the vertical position of a regulating piston by means of threads. After the next sowing operation, the metering piston 3 revisits the lower position o in the bulk of seeds in the seed container 16.
    [0019] [0019] According to an example, a compressed-air chamber 10 is arranged upstream of the first compressed-air channel 6 and the second compressed-air channel 7. The first compressed-air channel 6 and the second compressed-air channel 7 are both connected to the compressed-air chamber 10. Compressed air is guided into the compressed-air chamber 10 prior to flowing downstream via the first compressed-air channel 6 and the second compressed-air channel 7. The compressed-air chamber may be cylindrical. A diameter of the compressed-air chamber 10 may be, for example, 15 mm.
    [0020] [0020] According to an example, a connector 11 comprising a third compressed-air channel 12 is comprised by the sowing apparatus 1 upstream of the compressed-air chamber 10. The connector 11 is typically coupled to the dispenser 2 via a thread 13. Thus, the connector 11 can be easily removed, for example in order to clean the first compressed- S air channel 6 and the second compressed-air channel 7.
    [0023] [0023] Reference throughout this specification to one embodiment or an embodiment means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, appearances of the phrases “in one embodiment” or “in an embodiment” in various places throughout this specification are not necessarily all referring to the same embodiment. Where reference is made to a numerical value using a term such as, for example, about or substantially, the exact numerical value is also disclosed.
    [0024] [0024] As used herein, a plurality of items, structural elements, compositional — elements, and/or materials may be presented in a common list for convenience. However, these lists should be construed as though each member of the list is individually identified as a separate and unigue member. Thus, no individual member of such list should be construed as a de facto eguivalent of any other member of the same list solely based on their presentation in a common group without indications to the contrary. In addition, — various embodiments and example of the present invention may be referred to herein along with alternatives for the various components thereof. It is understood that such embodiments, examples, and alternatives are not to be construed as de facto eguivalents of one another, but are to be considered as separate and autonomous representations of the present invention.
    [0027] [0027] The verbs “to comprise” and “to include” are used in this document as open limitations that neither exclude nor require the existence of also un-recited features. The features recited in depending claims are mutually freely combinable unless otherwise explicitly stated. Furthermore, it is to be understood that the use of "a" or "an", that is, a — singular form, throughout this document does not exclude a plurality.INDUSTRIAL APPLICABILITY
    [0028] [0028] At least some embodiments of the present invention find industrial application in sowing of seeds on a desired soil.ONON
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    I a a coOLOONON
    REFERENCE SIGNS LIST 1 sowing apparatus 2 seed dispenser 3 metering piston 4 seed amount metering space 5 compressed-air duct 6 first compressed-air channel 7 second compressed-air channel 8 exit of the first compressed-air channel 9 exit of the second compressed-air channel 10 compressed-air chamber 11 connector 12 third compressed-air channel 13 thread 14 compressed-air plug 15 fourth compressed-air channel N 16 seed container
    N S 17 means for producing repeated compressed-air pulsesNN
    I a a © 20 CITATION LIST
    O 10 . S Patent Literature:O
    N WO 96/07307 Al
    权利要求:
    Claims (13)
    [1] CLAIMS:
    1. A sowing apparatus (1) comprising: — a seed dispenser (2), wherein the dispenser (2) includes a reciprocating dispensing and metering piston (3) having a seed amount metering space (4) for picking up a desired amount of seeds at a time from a seed container (16) into a compressed-air duct (5), — means for producing repeated compressed-air pulses for delivering seeds along the compressed-air duct (5) in a direction downstream from the seed amount metering space (4) to a destination, characterized in that — the sowing apparatus (1) comprises in a direction upstream from the compressed air duct (5) a first compressed-air channel (6) and a second compressed-air channel (7) so that compressed-air is guided from the first and second compressed-air channels (6, 7) into the compressed-air duct (5).
    2. The sowing apparatus (1) according to claim 1, wherein a first exit (8) of the first compressed-air channel (6) is arranged closer to the seed amount metering space (4) than a — second exit (9) of the second compressed-air channel (7).
    4. The sowing apparatus (1) according to claim 2, wherein a diameter of the first exit (8) is smaller than a diameter of the second exit (9).
    S IN 25 5. The sowing apparatus (1) according to any one of claims 1-4, wherein the first S compressed-air channel (6) is arranged parallel to the second compressed-air channel (7) N and the compressed-air duct (5). =
    6. The sowing apparatus (1) according to any one of claims 1-4, wherein the first O 30 — compressed-air channel (6) is arranged at an angle to the second compressed-air channel O (7) and the compressed-air duct (5).
    7. The sowing apparatus (1) according to any one of claims 1-6, wherein a compressed-air chamber (10) is arranged upstream of the first compressed-air channel (6) and the second compressed-air channel (7). 8 The sowing apparatus (1) according to claim 7, wherein the first compressed-air channel (6) and the second compressed-air channel (7) are connected to the compressed-air chamber (10).
    9. The sowing apparatus (1) according to claim 7 or 8, wherein a connector (11) comprising a third compressed-air channel (12) is comprised by the sowing apparatus (1) upstream of the compressed-air chamber (10).
    10. The sowing apparatus (1) according to claim 9, wherein the connector (11) is coupled to the dispenser (2) via a thread (13).
    11. The sowing apparatus (1) according to claim 9 or 10, wherein a compressed-air plug (14) comprising a fourth compressed-air channel (15) is coupled to the connector (11) upstream of the third compressed-air channel (12).
    12. The sowing apparatus (1) according to any one of claims 1-11, wherein the first compressed-air channel (6) and the second compressed-air channel (7) are not coaxially aligned with the longitudinal axis of the compressed-air duct (5). 5 13. A method for carrying out the sowing of seeds on a desired soil, the method O 25 comprising: N — dispensing a number of seeds into a compressed-air duct (5) by transferring the N number of seeds from a seed container (16) to the compressed-air duct by a I reciprocating dispensing and metering piston (3) having a seed amount metering N space (4) for receiving said number of seeds, 2 30 — blowing the number of seeds onto the soil by a compressed-air pulse, ä — controlling each reciprocating movement of said piston (3) by each release of said compressed-air pulse, characterized by
    — providing said compressed-air pulse to the compressed-air duct via a first compressed-air channel (6) and a second compressed-air channel (7), wherein the first and second compressed-air channels (6, 7) are arranged upstream of the compressed-air duct (5).
    14. The method according to claim 13, the method further comprising: — providing said compressed-air pulse to the first compressed-air channel (6) and the second compressed-air channel (7) via a compressed-air chamber (10).
    15. The method according to claim 13 or 14, wherein the compressed-air pulse is released by an operator.
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