• 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:
    Extension unit (10) for an agricultural implement (1) and agricultural implement with such an attachment. The attachment unit comprises a base member having a mounting portion (21) for attaching the base member to the implement and a working member (30) having a working portion (31) for providing a predetermined work action to the implement and a quick coupling portion (33) for releasably coupling to a quick coupling counter portion (23) of the base element. The quick coupling portion and the quick coupling counter portion are arranged so that they are mitei each other at least mutually positive engagement with each other coupled to releasably connect the working element to the base member. The attachment unit according to the invention allows a quick and easy retooling of the attachment unit to achieve a desired work effect.
    公开号:BE1022978A9
    申请号:E20155597
    申请日:2015-09-28
    公开日:2017-02-22
    发明作者:Josef Fischer；Bernd Valtwies
    申请人:Claas Saulgau Gmbh；
    IPC主号:
    专利说明:

    Extension unit for an agricultural implement and agricultural implement with such an attachment
    The invention relates to an attachment unit for an agricultural implement and an agricultural implement with such an attachment unit.
    Agricultural implements may be arranged to be e.g. to be coupled to a self-propelled agricultural machine on the front or rear. As a working machine, e.g. a tractor, a forage harvester or the like may be provided. An attachment for the agricultural implement may have a working section to achieve a particular working effect on the implement.
    As such agricultural implements are e.g. Maize bits known, which may be designed as an attachment front coupling to a self-propelled forage harvester as a working machine. A maize header may have several add-on units in the form of respective Einweisfingern which should ensure as a predetermined working effect of this optimal plant uptake in the maize teeth.
    In this case, differently shaped Einweisfinger be provided for different crops (such as storage maize, maize plants, understory, etc.) or different conditions of use, which are to be mounted on the work tool exchange if necessary. According to current practice, the Einweisfinger are to be mounted by means of several screws at respective mounting positions on the maize header.
    However, this requires a considerable amount of work, as per Einweisfinger several screws incl. Washers must first be dismantled and then reassembled and hard to avoid soiling the
    Screws and the Einweisfinger and possibly defective thread make this work process even more difficult. For a quick change, additional aids such as e.g. an impact wrench needed. Another problem is the storage of the many items (multiple screws and washers per Einweisfinger) and the relatively bulky Einweisfinger. If all Einweisfinger a maize denture exchanged or removed, they usually can not be stowed on the forage harvester or on the corn header and must be stored at e.g. Field border are left behind.
    The invention has for its object to provide an attachment unit for an agricultural implement and an agricultural implement with such an attachment unit, with a quick and easy retooling of the attachment unit to achieve a desired work effect is possible.
    This is achieved with an add-on unit according to claim 1 or an agricultural implement according to claim 10. Further developments of the attachment unit according to the invention are defined in the dependent claims.
    According to the invention, an attachment unit for an agricultural implement has a base member and a working member. The base member has a mounting portion for attaching the base member to the implement. The working element has a working portion for providing a predetermined working action to the working tool and a quick coupling portion for releasably coupling with a quick-action coupling portion of the base member. The quick coupling portion of the working element and the quick coupling counter portion of the base member are arranged so that they can be coupled to each other at least via mutual positive engagement to releasably connect the working element to the base member.
    Thus, if necessary, a work item with a particular work section can be easily and quickly replaced by a work item with another particular work item by releasing the connection between work item and base member. Thus, a quick and easy retrofitting of the attachment unit to achieve a desired work effect is possible.
    According to one embodiment of the invention, one of the quick coupling portion and the quick coupling counter portion forms a plug and the other of the quick coupling portion and the quick coupling counter portion a sleeve, so that mutual positive connection of quick coupling portion and quick coupling counter portion can be produced by inserting the plug along a direction of insertion into the sleeve.
    A connector for realizing the positive connection for releasably connecting the working element and the base element is simple, robust and can be solved and restored extremely quickly. This further reduces the expense of retrofitting the add-on unit.
    According to a further embodiment of the invention, the sleeve has an inner cone and the plug has an outer cone, which is formed to match the inner cone of the sleeve. Such a Konussteckverbindung can be easily and quickly produced and solved again. In addition, in a Konussteckverbindung with a correspondingly small conicity of inner and outer cone in addition to the majority of forces during work process receiving positive locking over a scored by friction self-locking the cone plug connection can be achieved against loosening of the connection.
    Alternatively, with a correspondingly large conicity of the inner and outer cone, a self-locking cone connection between the plug and the sleeve can be achieved, which can be released even more easily. However, in this case, a separate backup against loosening of the connection is required.
    According to yet another embodiment of the invention, the sleeve and the plug have respective through-holes which extend transversely to the direction of insertion of sleeve and plug, so that they form a passage when plugged into the sleeve for releasable coupling. The add-on unit also has a locking pin, which can be secured in a form-fitting manner in the passage formed by the through-holes of the sleeve and plug and can be secured against falling out of the passage. In this way, a simple and quick to produce and releasable backup against loosening the positive connection of sleeve and plug is provided.
    Preferably, the through holes of sleeve and plug have a slight offset to provide a tensioning path. In particular, the passage through the plug extends at an angle slightly away from 90 degrees (e.g., about 91 degrees to 93 degrees) to the direction of insertion to provide the plug travel or wedge action for the plug pin.
    Preferably, the locking pin on a wedge portion, so that the locking pin in the through holes or the passage defined by these is self-locking wedged. In this embodiment of the invention, only a simple impact tool such as a hammer is required for releasing and producing the fuse, which is usually carried on an agricultural machine anyway.
    In particular, the locking pin is made with a round rod and formed around its axis of rotation or longitudinal axis on one side different. Before given to the locking pin has a first longitudinal half, which has a first lateral surface with a first axis of rotation, and a second longitudinal half, which has a second lateral surface with a second axis of rotation which at an angle of 1 degree to 3 degrees relative to the first axis of rotation first lateral surface is inclined. In this case, preferably a radius of the first and second lateral surfaces is equal and constant over the entire length of the plug pin or identical.
    According to yet another embodiment of the invention, one of the quick coupling portion and the quick coupling counter portion has a projection projecting transversely to the insertion direction and the other of the quick coupling portion and the quick coupling counter portion has a recess, so that when inserting the plug into the sleeve of the projection in the form-fitting Recess engages.
    In this way additional anti-rotation means are provided, which e.g. assisting each other in aligning the through-holes of the quick-release portion and the quick-release counter portion, respectively, providing additional protection against rotation of the working member relative to the base member for the working process.
    According to one embodiment of the invention, a recess is provided on an outer peripheral portion of the plug and is connected to an inner peripheral portion of the sleeve at least one engagement element, which is axially aligned with releasably coupling in the sleeve inserted plug on the recess of the plug and which form fit into the recess the plug is adjustable. The engagement member is in a release state in which the engagement member is radially brought to a diameter position outside the recess of the plug, and egg NEN locking state can be brought, in which the engagement element is pressed radially into the recess of the plug and locked therein.
    This embodiment of a connector advantageously has a selectively releasable latching means of the engagement elements and the recess, so that a simple manufacture and release of a fuse of the connector is guaranteed.
    Preferably, a plurality of engagement elements formed like the at least one engagement element are provided circumferentially distributed around the inner peripheral portion of the sleeve. Preferably, the engagement elements are each formed as a ball and connected to the sleeve by a radially extending through hole is provided for each engagement member in the sleeve, so that the engagement member is positively and radially movably fitted into the through hole and in the diameter position outside the recess of the Plug protrudes radially on an outer circumference of the sleeve. In this case, an outer sleeve is provided which is fitted on the outer circumference of the sleeve and which is axially displaceable to a first position for realizing the release state and to a second position for realizing the Arretierungszustandes of the engagement elements. As a result, a quick release coupling is provided, as in a similar manner e.g. for hydraulic or pneumatic applications.
    According to a further embodiment of the invention, the outer peripheral portion of the plug and the inner peripheral portion of the sleeve are each formed circular. In this case, the plug has a front side in the plug-in direction projecting projection with a deviating from the circular cross-section and the sleeve has an insertion hole, so that when inserting into the sleeve of the plug, the projection engages positively in the insertion hole. With this embodiment of the invention, e.g. for the
    Work process advantageously provided a backup against rotation of the working element relative to the base element.
    The invention also provides an agricultural implement for coupling to an agricultural work machine. The agricultural implement has at least one attachment unit according to one, several or all of the previously described embodiments of the invention in any conceivable combination, the attachment section of the base element of the attachment unit being e.g. is secured by a screw or a welded connection to the implement.
    The agricultural machine is designed in particular as a self-propelled forage harvester. The agricultural implement is designed in particular as a corn header as an attachment. The attachment unit is designed, in particular, as a guide finger for mounting on the maize header, in particular for mounting on a conveyor drum of the maize header.
    In the following the invention will be described in more detail by means of preferred embodiments and with reference to the attached figures.
    Fig. 1 shows in a view from below a provided with several add-on units conveyor drum of an agricultural implement according to an embodiment of the invention.
    Fig. 2a shows an exploded side view of an attachment unit according to an embodiment of the invention.
    Fig. 2b shows the attachment unit of Fig. 2a in an exploded plan view.
    FIG. 3 shows a sectional view of the attachment unit of FIG. 2a, seen along a section line A-A in FIG. 2a.
    Fig. 4 shows in several views a locking pin of the add-on unit of Fig. 2a.
    5a shows a side view of an attachment unit according to another embodiment of the invention.
    FIG. 5b shows a sectional view of the add-on unit of FIG. 5a, seen along a section line B-B in FIG. 5a.
    FIG. 6a shows a sectional view of the add-on unit of FIG. 5a, seen along a section line A-A in FIG. 5a.
    FIG. 6b shows a top view, rotated by 90 degrees, of the add-on unit of FIG. 5a.
    Hereinafter, with reference to FIGS. 1 to 4, an attachment unit 10 for an agricultural implement 1 according to a first embodiment of the invention will be described.
    1 shows a bottom view of a conveyor drum 2 provided with a plurality of add-on units 10 of an agricultural implement 1 according to an embodiment of the invention. The agricultural implement 1 is arranged to be e.g. to be coupled to a self-propelled agricultural work machine (not shown) on the front or rear side.
    According to the illustrated embodiment of the invention, the agricultural implement 1 is designed as a maize header for front attachment to a forage harvester as a working machine. The plurality of add-on units 10 are formed according to the embodiment of the invention shown as Einweisfinger, which should ensure as a predetermined working effect of this optimal plant uptake in the maize header (implement 1).
    As shown in FIGS. 1 to 3, each attachment unit 10 is formed in at least two parts and has a base element 20 and a working element 30. The base member 20 has a mounting portion 21 over which the base member 20 is secured, e.g. by means of a screw connection or a welded connection to the conveyor drum 2 of the implement 1 is fastened and fastened (in Fig. 1) and which is integrally formed or welded by a sheet metal part to a rod portion 22 of the base member 20, so that the flange-like attachment portion 21 at a longitudinal end of the rod part 22 protrudes.
    The working element 30 has a working section 31 which serves to guide the crop to the optimum reception of it in the implement 1 and which may be shaped differently depending on the crop (such as, for example, maize, light corn plants, undergrowth, etc.). The working section 31 is e.g. molded from sheet metal formed on a tube part 32 of the working element 30 or welded, so that the working portion 31 protrudes at a longitudinal end of the tubular member 32.
    At a longitudinal end portion of the pipe part 32 opposite the longitudinal end with the working portion 31, a quick-coupling portion 33 is formed in the pipe part 32. The quick coupling portion 33 is adapted to be detachably coupled to a quick coupling counter portion 23 of the base member 20 (in FIG. 1), the quick coupling counter portion 23 being connected to the rod portion 22 at a longitudinal end portion of the rod portion 22 opposite the longitudinal end with the attachment portion 21 is formed.
    According to the invention, the quick coupling portion 33 of the working element 30 and the quick coupling counter portion 23 of the base member 20 are arranged so that they are miteinan the coupled or coupled at least mutual mutual fit to releasably connect the working element 30 with the base member 20. Thus, if necessary, a working element 30 with a certain working section 31 can easily and quickly be exchanged for a working element 30 with another specific working section 31 by releasing the connection between the working element 30 and the base element 20.
    As can be seen in FIGS. 1 to 3, the quick coupling counterpart section 23 of the base element 20 forms a plug and the quick coupling section 33 of the working element 30 forms a sleeve, so that positive engagement of the quick coupling section 33 and the quick coupling counter section 23 is achieved along an insertion direction SR (see FIG. 2b). in the sleeve inserting the plug can be produced.
    More specifically, the sleeve-like quick coupling portion (sleeve) 33 has an inner cone 34 and the plug-type quick coupling counterpart (plug) 23 an outer cone 24 which is formed to the inner cone 34 of the quick coupling portion 33 fitting (with the same conicity), so that a cone plug connection between the quick coupling portion 33 and the quick coupling counter section 23 can be produced.
    According to the embodiment described here, the conicity of quick coupling portion 33 and quick coupling counter portion 23 is so large or steep that the cone plug connection is self-locking. This may be so, because separate securing means described below are provided.
    More precisely, in the sleeve-like quick coupling section (sleeve) 33 in the region of the inner cone 34 there are provided two mutually aligned through holes 35a, 35b which extend at an angle of 90 degrees transversely to the plug direction SR or to a longitudinal axis of the inner cone 34. In addition, a through-hole 25 is provided in the plug-type quick coupling counterpart (plug) 23 in the region of the outer cone 24 which extends at an angle slightly different from 90 degrees (eg approximately 91 degrees to 93 degrees) to the insertion direction SR transverse to this or to a longitudinal axis the outer cone 24 extends.
    The respective through holes 35a, 35b, 25 of quick coupling portion 33 and quick coupling counter portion 23 have the same diameter and are arranged such that the through holes 35a, 35b of the quick coupling portion 33 and the through hole 25 of the quick coupling counter portion 23 at the external cone inserted for releasably coupling in the inner cone 34 24 are aligned to form a passage.
    As can be seen in particular from FIGS. 2 to 4, the add-on unit 10 according to the invention also has a socket pin 40, which is shaped such that it can be positively inserted and counteracted in the passage formed by the through-holes 35a, 35b, 25 of the quick-coupling section 33 and the quick-coupling counter section 23 From the through holes 35a, 35b, 25 and the passage falling out is securable. The locking pin 40 serves according to this embodiment as a securing means to hold the cone plug connection between the quick coupling portion 33 and the quick coupling counter portion 23 on voltage or together and thus secure the working element 30 on the base member 20.
    In order to secure the locking pin 40 against falling out of the through holes 35a, 35b, 25, the locking pin 40 has a wedge portion 41 (see FIG. 4), so that the locking pin 40 in the through holes 35a, 35b, 25 and the passage self-locking is wedged.
    More specifically, the left part of Fig. 4 in the middle shows a longitudinal side view of the plug pin 40, below a plan view of an upper in Fig. 4 end face 42 of the plug pin 40 and top one Top view of a lower in Fig. 4 end face 43 of the plug pin 40. The right part of Fig. 4 finally shows a perspective view of the plug pin 40th
    As can be seen from FIG. 4, the locking pin 40 is produced with a round rod which is designed to be half-sided differently on its axis of rotation or longitudinal axis A1. More precisely, the longitudinal half 40.1 of the plug pin 40 on the left-hand side of FIG. 4 has a first lateral surface whose axis of rotation coincides with the axis of rotation A1 shown in FIG. 4, and has the longitudinal half 40.2 of the left-hand part of FIG Plug pin 40 has a second lateral surface, whose axis of rotation (not shown) is inclined at an angle of 1 degree to 3 degrees relative to the rotation axis A1 shown in FIG. In this case, a radius of the first and second lateral surfaces is equal and constant over the entire length (with the exception of the chamfers on the longitudinal ends shown) of the plug pin 40.
    With this configuration of the securing means can on the inner cone 34 and the outer cone 24 on expensive milled slots (such as would be required for a flat wedge) are dispensed with and it suffice the easily and inexpensively producible as cross holes through holes 35a, 35b, 25 of quick coupling portion 33 and quick coupling counter section 23. By the described configuration of the plug pin 40, the through holes 35a, 35b, 25 of quick coupling portion 33 and quick coupling counter portion 23 can be inexpensively and easily manufactured with a conventional cylindrical drill. The locking pin (round wedge) 40 can also be inexpensive and simple, e.g. produced by fine forging. On a screw connection between the base member 20 and working element 30 can be dispensed with entirely with the inventive solution.
    For example, for aligning (for forming the passage for the socket pin 40) of the through holes 35a, 35b, 25 of quick coupling portion 33 and quick coupling counter portion 23 and provide an additional safeguard against rotation of the working member 30 relative to the base member 20 for the working process, are at the attachment unit 10th provided additional anti-rotation means.
    As can be seen in particular from FIGS. 2 a, 2 b and 3, the quick coupling counterpart section 23 of the base element 20 has two identical protrusions 26 a, 26 b projecting transversely to the insertion direction SR, which in the present embodiment are diametrically opposed by the sheet metal part providing the attachment section 21 of the base element 20 Outer cone 24 are formed. The quick coupling portion 33 of the working element 30 in turn has two identical recesses 36 a, 36 b, which are formed diametrically opposite to the inner cone 34 having the longitudinal end of the quick coupling portion 33.
    The projections 26a, 26b of the base element 20 and the recesses 36a, 36b of the working element 30 are shaped so that the projections 26a, 26b of the base member 20 positively engage in the recesses 36a, 36b of the working element 30 when the outer cone 24 of the base member 20th is plugged into the inner cone 34 of the working element 30 along the insertion direction SR or is.
    In the following, with reference to the figures 1,5a, 5b, 6a and 6b designed as Einweisfinger attachment unit 10 'for the agricultural Ar beitsgerät 1 according to a second embodiment of the invention will be described. The attachment unit 10 'according to the second embodiment of the invention is formed identical to the attachment unit 10 according to the first embodiment of the invention, except for some differences in the connector. Therefore, in the following, essentially only these differences will be dealt with and, in FIGS. 5a to 6b, components which are identical or similar to those of the first embodiment of the invention are designated by the same reference numerals but extended by an apostrophe.
    Also, according to the second embodiment of the invention, the quick-action coupling portion 23 'of the base member 20' forms a plug and the quick-coupling portion 33 'of the working member 30' forms a sleeve so that positive engagement of the quick-release portion 33 'and quick-action counter portion 23' is along the plug-in direction SR (see Figs Fig. 5a or Fig. 5b in the sleeve inserting the plug can be produced.
    More specifically, according to the second embodiment of the invention, a recess 27 'in the form of a circumferential groove is provided on a circular outer peripheral portion of the male-type quick-connect counterpart (plug) 23'. In addition, a plurality of each formed in the form of a steel ball engaging elements 37 'are connected to a circular inner peripheral portion of the sleeve-like quick coupling portion (sleeve) 33', which are distributed circumferentially uniformly around the inner peripheral portion of the quick coupling portion 33 '.
    The engaging elements 37 'are arranged so that they are in axial engagement (in the insertion direction SR) to the recess 27' of the quick-action coupling portion 23 'in the quick coupling portion 33' inserted for releasably coupling in the quick coupling portion 33 'aligned, and are so ge formed that they each form fit in the recess 27 'of the quick-action coupling portion 23' are fitted.
    According to the second embodiment of the invention, the engagement members 37 'are together in a release state in which the engaging members 37' are each radially movable to a diameter position outside the recess 27 'of the quick-action coupling portion 23', and a locked state (as shown in Fig. 6a). can be brought, in which the engagement elements 37 'are each radially pressed into the recess 27' of the quick-action coupling portion 23 'and locked therein.
    The engagement elements 37 'are connected to the sleeve-like quick coupling section (sleeve) 33' by providing a radially extending through hole 38 'for each engagement element 37' in the quick coupling section 33 ', so that the engagement element 37' is positively and radially movable into the through hole 38 'is fitted and in the diameter position outside the recess 27' of the quick-action coupling portion 23 'on an outer periphery of the quick-coupling portion 33' projects radially.
    The attachment unit 10 'according to the second embodiment of the invention also has an outer sleeve 50', which is fitted on the outer periphery of the quick coupling portion 33 'and which axially (in the insertion direction SR) to a first position for realizing the release state and to a second position ( as shown in Fig. 6a) for realizing the locked state of the engaging members 37 'is slidable.
    More specifically, the outer sleeve 50 'has an inner diameter which is larger than an outer diameter of the outer periphery of the quick-coupling portion 33', so that in the diametrical position of the engagement members 37 'outside the recess 27' of the quick-action coupling portion 23 'their radial projection from the through holes 38' allowed becomes.
    The outer sleeve 50 'also has on its inner circumference a collar 51' which reduces the inner diameter of the outer sleeve 50 'such that the radial projection of the engagement members 37' out of the through holes 38 'is not permitted when the annular collar 51' extends through the through holes 38 'is pushed, as shown in Fig. 6a.
    On the outer periphery of the quick-coupling portion 33 ', moreover, a sleeve-shaped holder 60' is tightly fitted (eg, shrunk or glued) having an outer peripheral portion 61 'of an outer diameter so that the outer sleeve 50' slides with its inner periphery slidably on the outer peripheral portion 61 'of the holder 60 'can be slid or displaced to move the outer sleeve 50' between its first and second positions. Between a free longitudinal end of the outer peripheral portion 61 'of the holder 60' and a lateral side of the annular collar 51 'of the outer sleeve 50' is a helical compression spring 70 'is arranged, which the outer sleeve 50' in its second position (to realize the Arretierungszustandes the engaging elements 37 ') biases.
    At the other longitudinal end of the holder 60 ', an annular collar 62' is formed, whose outer diameter is greater than the inner diameter of the outer sleeve 50 ', at stops of a holder 60' facing the longitudinal end of the outer sleeve 50 'on the annular collar 62' of the holder 60 'a first end stop for the displacement of the outer sleeve 50 'to provide.
    At the provided with the through holes 38 'longitudinal end of the quick coupling portion 33' is formed on the outer circumference of another annular collar 38a 'whose outer diameter is greater than an inner diameter of the annular collar 51' of the outer sleeve 50 'to 50 at stops of the annular collar 51' of the outer sleeve 'on the collar 38a' of the quick coupling portion 33 'to provide a second end stop for the displacement of the outer sleeve 50'.
    As a result, the quick coupling portion 33 'and the quick coupling counter portion 23' are configured similar to a quick coupling for hydraulic or pneumatic applications.
    When the base member 20 'and the working member 30' are to be releasably connected, the slider-like outer sleeve 50 'is retracted to its first position (upwardly in Figs. 5a and 6a), whereby the spherical engagement members 37' extend radially outward (in Figs Fig. 5a and Fig. 6a to the left or to the right) can dodge and for releasable coupling of the sleeve-like quick coupling portion (sleeve) 33 'of the working element 30' on the plug-type quick coupling counter portion (plug) 23 'of the base member 20' can be pushed. After releasing the outer sleeve 50 ', this can by the spring force of the helical compression spring 70' back (in Fig. 5a and Fig. 6a down) slide into its second position to the fixing and securing the compound, the spherical engagement elements 37 'in the recess 27th 'To engage (circumferential groove or groove) and to keep in the recess 27'.
    For example, For the working process to provide a safeguard against rotation of the working element 30 'relative to the base element 20', anti-rotation means are also provided on the attachment unit 10 'according to the second embodiment of the invention.
    More specifically, the male-type quick-release counter portion (plug) 23 'of the base member 20' has a protrusion 29 'projecting on an end side thereof in the plug-in direction SR with a cross section deviating from the circular shape, in particular rectangular in cross-section. The sleeve-like quick coupling portion (sleeve) 33 'has in the interior a corresponding insertion hole 39' (with a deviating from the circular shape, in particular rectangular cross-section), so that when in the quick coupling portion 33 'inserting the quick coupling counter portion 23' of the projection 29 'positively in the insertion hole 39 'engages.
    In conclusion, according to the embodiments of the invention, at least the following advantages are achieved. It is a much faster assembly and disassembly of add-on units 10, 10 'allows the implement 1. For the assembly or disassembly of the add-on units 10 only a percussion tool such as a hammer is required. Dismounted working elements 30, 30 'can be stowed easily on the working machine or the working equipment, since no bulky flange surfaces (fixing sections 21) are provided thereon. Overall, each attachment 10, 10 'fewer items and thus there is little risk of loss. The add-on units 10, 10 'are robust against dirt and compared to conventional solutions weight and cost reduced.
    LIST OF REFERENCES 1 agricultural implement 2 conveyor drum 10; 10 'extension unit 20; 20 'base member 21 mounting portion 22; 22 'rod part 23; 23 'quick coupling counterpart 24 outer cone 25 through hole 26a, 26b protrusions 27' recess 29 'projection 30; 30 'working element 31 working section 32; 32 'pipe part 33; 33 'quick coupling portion 34 inner cone 35a, 35b through holes 36a, 36b recesses 37' engaging element 38 'through hole 38a' annular collar 39 'insertion hole 40 pin 40.1 longitudinal half 40.2 longitudinal half 41 wedge portion 42 end face 43 front side 50' outer sleeve 51 'annular collar 60' holder 61 'outer peripheral portion 62nd 'Ring collar 70' helical compression spring A1 rotational axis / longitudinal axis SR direction of insertion
    权利要求:
    Claims (10)
    [1]
    claims
    An attachment (10; 10 ') for an agricultural implement (1), comprising: a base member (20; 20') having a mounting portion (21) for attaching the base member (20; 20 ') to the implement (1), and a working member (30; 30 ') having a working portion (31) for providing a predetermined working action to the implement (1) and a quick coupling portion (33; 33') for releasable coupling to a quick coupling counter portion (23; 23 ') of the base member (30; 20; 20 '), wherein the quick coupling portion (33; 33') of the working element (30; 30 ') and the quick coupling counter portion (23; 23') of the base element (20; 20 ') are arranged so as to be at least mutually positive can be coupled together to releasably connect the working element (30; 30 ') to the base member (20; 20').
    [2]
    An attachment unit (10; 10 ') according to claim 1, wherein one of said quick coupling portion (33; 33') and said quick coupling counter portion (23; 23 ') forms a plug and the other of said quick coupling portion (33; 33') and said quick coupling portion (33; Quick coupling counter portion (23, 23 ') forms a sleeve, so that mutual positive connection of quick coupling portion (33, 33') and quick coupling counter portion (23, 23 ') can be produced by inserting the plug into the sleeve along an insertion direction (SR).
    [3]
    3. extension unit (10) according to claim 2, wherein the sleeve has an inner cone (34) and the plug has an outer cone (24) which is formed to match the inner cone (34) of the sleeve.
    [4]
    4. Extension unit (10) according to claim 2 or 3, wherein the sleeve and the plug have respective through holes (35 a, 35 b, 25) which extend transversely to the direction of insertion (SR) of the sleeve and plug, so that they for releasably coupling in the sleeve plugged plug form a passage, and further wherein a locking pin (40) is provided, which in the passage formed by the through holes (35a, 35b, 25) of sleeve and plug form-fitting inserted and against falling out of the passage is securable.
    [5]
    5. add-on unit (10) according to claim 4, wherein the locking pin (40) has a wedge portion (41), so that the locking pin (40) in the passage formed by the through holes (35 a, 35 b, 25) is self-locking wedged.
    [6]
    An attachment unit (10) according to any one of claims 2 to 5, wherein one of the quick coupling portion (33) and the quick coupling counter portion (23) has a transversely to the insertion direction (SR) projecting projection (26 a, 26 b) and the other of the quick coupling portion ( 33) and the quick coupling counterpart portion (23) has a recess (36a, 36b), so that when inserting the plug in the plug, the projection (26a, 26b) engages positively in the recess (36a, 36b).
    [7]
    7. extension unit (10 ') according to claim 2, wherein at an outer peripheral portion of the plug a recess (27') is provided and at an inner peripheral portion of the sleeve at least one engagement member (37 ') is connected, which at the detachable coupling inserted into the sleeve Plug is axially aligned with the recess (27 ') of the plug and which is form-fitting in the recess (27') of the plug can be fitted, wherein the engagement member (37 ') in a release state in which the engagement member (37') radially to a Diameter position outside the recess (27 ') of the plug can be brought, and a locking state can be brought, in which the engagement element (37') is pressed radially into the recess (27 ') of the plug and locked therein.
    [8]
    8. extension unit (10 ') according to claim 7, wherein a plurality of as the at least one engagement element (37') formed engaging elements (37 ') are provided circumferentially distributed around the inner peripheral portion of the sleeve, wherein the engagement elements (37') each as a ball are formed and are connected to the sleeve by a radially extending through hole (38 ') is provided for each engagement member (37') in the sleeve, so that the engagement member (37 ') positively and radially movable in the through hole (38'. ) and in the diameter position outside the recess (27 ') of the plug projects radially on an outer circumference of the sleeve, and wherein an outer sleeve (50') is provided, which is fitted on the outer circumference of the sleeve and which axially to a first position for realizing the release state and to a second position for realizing the locked state of the engagement elements (37 ') is displaceable.
    [9]
    9. extension unit (10 ') according to claim 7 or 8, wherein the outer peripheral portion of the plug and the inner peripheral portion of the sleeve are each formed circular, and wherein the plug on a front side in the insertion direction (SR) projecting projection (29') with a having a different cross-section of the circular shape and the sleeve has a Einsteckloch (39 '), so that in the sleeve inserting the plug of the projection (29') engages positively in the insertion hole (39 ').
    [10]
    10. Agricultural implement (1) for coupling to an agricultural work machine, comprising at least one attachment unit (10; 10 ') according to one of claims 1 to 9, wherein the attachment section (21) of the base element (20; 20') of the attachment unit (10 10 ') is attached to the implement (1).
    类似技术:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US843164A|1906-03-02|1907-02-05|Charles M Delzell|Grain-lifting attachment for harvesters.|
    DE3401391A1|1984-01-17|1985-07-25|Argus Verwaltungsgesellschaft Mbh, 7505 Ettlingen|Plug connection having a sleeve part and a plug part as coupling elements which can be detachably connected to one another, especially for fluid couplings|
    DE3522699C2|1985-06-25|1994-06-01|Claas Ohg|Self-propelled harvester|
    DE19746216B4|1997-10-21|2004-11-18|Maschinenfabrik Bernard Krone Gmbh|Rotary rake for a haymaking machine|
    US6158571A|1999-04-01|2000-12-12|Deere & Company|Finger bearing assembly for a combine platform auger|
    AT443986T|2004-07-28|2009-10-15|Claas Saulgau Gmbh|SWITZERLAND CIRCLE FOR A HORSE ADVERTISING MACHINE|
    US8539744B2|2005-01-06|2013-09-24|Dave Dietrich|Crop lifter and crop accessory attachment|
    DE202005007424U1|2005-05-06|2005-07-14|Claas Saulgau Gmbh|Mower bar for disc mowers|
    DE102007035791B3|2007-07-31|2009-03-26|Maschinenfabrik Kemper Gmbh & Co. Kg|Mowing and collecting device for stalk-like plants harvesting machine, has holder with straight edge that together with scraper closes narrow gap such that undesired accumulation of residues of harvested plant are removed by scraper|
    DE102008046143A1|2008-09-05|2010-03-11|Bayerische Motoren Werke Aktiengesellschaft|Quick-coupler arrangement for use in cooling circuit of internal-combustion engine of motor vehicle to connect e.g. cooling water hose, has separation force producing device producing force that acts between connecting piece and coupler|
    NL1036168C2|2008-11-07|2010-05-10|Lely Patent Nv|SHARED RAKE ARM WITH QUICK COUPLING.|
    DE102012008098B4|2011-05-27|2016-08-11|Knapheide GmbH|Clutch for high pressure hoses|
    US8418432B2|2011-07-19|2013-04-16|Kenneth E. Shoup|Quick connect/disconnect coupling for a stalk stomper|
    DE102011116256A1|2011-10-17|2013-04-18|Alois Pöttinger Maschinenfabrik Gmbh|Hay-making machine e.g. rake, has control element axially and/or rotatably movably supported at support arm part and allowing radial positioning of locking element according to axial or rotatary positioning of locking element|DE102016207788A1|2016-05-04|2017-11-09|Deere & Company|Machine for mowing stalk-like crops with removable divider tips|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102014114101.6A|DE102014114101A1|2014-09-29|2014-09-29|Extension unit for an agricultural implement and agricultural implement with such an attachment|
    DE102014114101.6|2014-09-29|
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