Use of an attachment outer cone cover cap, attachment cover cap assembly, attachment assembly, set and method

Abstract

use a) an attachment outer cone cover cap (1) with a T-shaped longitudinal section having a vertical leg (2) and a horizontal leg (3), wherein the horizontal leg (3) has angled cone legs (5, 6) which define an inner cone surface (7), and the vertical leg (2) has a fastening area (11), b) for fastening the attachment outer cone cover cap (1) in the fastening area (11) to an attachment outer cone part (17) with a strap (18) for a work vehicle or with a tower (19) for a work vehicle to which a coupling element (20) is attached which has an outer cone surface (21), wherein the inner cone surface (7) of the attachment outer cone cover cap (1) is pressed against the outer cone surface (21) of the attachment outer cone part (17).

Description

TECHNICAL FIELD OF THE INVENTION

[0001] If a front loader or other tool is to be attached to a work vehicle, particularly a tractor, then attachment towers are used for this purpose. Such attachment towers have a strap. The strap runs approximately parallel to the vehicle's longitudinal axis and is attached, for example, to a chassis, drive train or running gear frame of the work vehicle, which is usually done by screwing. Furthermore, the attachment tower has a tower that forms a holder in one end area to which the front loader or other tool can be held. The other end area of ​​the tower is detachably attached to the strap. The strap and the tower can have a roughly inverted T shape. To connect the tower to the strap, an outer conical surface is positively received in a correspondingly designed inner conical surface.The positive connection between the outer conical surface and the inner conical surface serves, on the one hand, to specify the relative position of the chord and the tower. On the other hand, the positive connection between the outer conical surface and the inner conical surface can result in a rigid transmission of forces between the tower and the chord. It is possible for an outer conical part forming the outer conical surface to be formed directly by the chord or the tower, or for it to be a coupling element that is attached to the chord or tower or welded to the chord or tower. Accordingly, the inner conical surface can be formed by one inner conical part, which can then be formed directly by the other part of the chord or the tower, or for the inner conical part to be a coupling element that is attached, in particular welded, to the chord or tower. STATE OF THE ART

[0002] EP 3 158 842 B1 discloses an attachment tower comprising a tower and a belt. The belt is attached to the drive train of the work vehicle, with a front attachment section of the belt being attached to the front chassis frame, while a rear attachment section of the belt is attached to a flywheel housing of the drive train. Here, the tower is attached to the belt via a screw connection.

[0003] ALÖ AB is supplying an add-on tower with four outer conical bodies welded to the chord, and the tower with inner conical surfaces at the corresponding locations. The outer conical surfaces of the outer conical bodies and the inner conical surfaces of the tower have aligned through-holes. When the chord is mounted on the tower, the outer conical surfaces of the chord engage with the inner conical surfaces of the tower. Securing is then achieved with fastening screws that extend through the aligned through-holes.

[0004] The AGCO group of companies uses a conical coupling to connect the attachment head to the tractor body. For this purpose, inner conical surfaces are machined into a cast part of the coupling bell housing, which are used to position the attachment head on the tractor. The outer conical surfaces are machined onto the belt.

[0005] The applicant company markets attachments that can be attached to a coupling bell via a coupling element with two opposing outer conical surfaces. The coupling element is positioned in a form-fitting manner between an inner conical surface of the attachment and an inner conical surface of the coupling bell. The attachment is additionally bolted to the tractor.

[0006] The publication FR 2 972 203 A1 inserts a sleeve-like coupling element between the chord and the tower. The coupling element has a hollow cylindrical section that fits into a stepped bore in the chord or tower. Another section of the coupling element forms an outer conical surface that fits precisely into an inner conical surface of the tower and the chord. A fastening screw then extends through the inner bore of the coupling element and the bores in the chord and tower. The publication proposes different arrangements of the coupling element sections to ensure axial and lateral support. Welding the coupling element to the chord or tower is also suggested.Furthermore, the document proposes that the coupling element form two oppositely oriented outer conical surfaces, each of which is then intended for engagement with the inner conical surfaces of the chord and the tower. Rounded outer conical surfaces are also proposed in a longitudinal section. In these embodiments, the acting forces are not transmitted exclusively via the conical surfaces, but additionally by means of a receptacle for at least one cylindrical section in the bore of the chord or tower.

[0007] The non-generic publication US 5,707,113 A discloses a rim whose central bore and outer surface are covered by a cap on the radially inward side of the wheel bolts. The cap is secured by means of wheel nut caps, which are placed over the free threaded ends of the wheel bolts. In the area of ​​the wheel bolts, the cap is caught between the rim and the wheel bolt caps and thus secured.

[0008] The non-generic document DE 2 260 443 A discloses a screw with a head without a slot, a spherical outer surface and a truncated conical inner surface facing the shaft, which is equipped with knurling. The shaft has an external thread. The screw can be designed as a sleeve screw by providing the shaft with an internal bore with an internal thread.

[0009] The website KLYNGTSK 16 connecting screw sleeves M4. Available from: Amazon Europe Core S.à.rl. Processing status: see page 3, "Available on Amazon.de since June 11, 2020." URL: https: / / www.amazon.de / KLYNGTSK-Verbindung-Verbindungsh%C3%BCIse-Abrei%C3%9Fschraube-Befestigung / dp / B0887Y4XFR / ref=sr_1_8?keywords=h%C3%BCLsen schrauben+senkkopf&qid=1648543631&sprefix=h%C3%BCIsenschraube+senk-kop%2Caps%2C133&sr=8-8 [accessed on March 29, 2022] discloses non-generic screws with associated connecting sleeves, wherein the screws are designed as shear-off screws in which the shaft has predetermined breaking points, in the area of ​​which the length of the shaft can be adjusted by the user as required.

[0010] The non-generic publication US 4,557,654 A discloses a cover cap for the end area of ​​a threaded shaft with a screwed-on nut. The nut has hexagonal engagement surfaces for an open-end wrench, in which a circumferential cylindrical groove is arranged. The cover cap has, on the one hand, an internal thread for screwing onto the screw thread and, on the other hand, projections that can snap into the circumferential groove. The cover cap is so flexible that it can be turned over the nut after being screwed onto the thread.

[0011] The non-generic document US 5,642,973 A discloses a cover for a cleaning opening of a building's installation system by means of a cap. The cap is attached to a projection of a cover plate of the opening by pressing elastic inner flanges of a sleeve of the cap onto the projection of the cover plate.

[0012] The non-generic document US 3,548,704 A also relates to a cover cap for a nut-bolt connection. The cover cap has an inner sleeve with ribs in the free end areas that can engage the thread of the bolt for securement. OBJECT OF THE INVENTION

[0013] The present invention is based on the object - handling of an attachment outer cone part and / or attachment inner cone part and / or - the consistent guarantee of the required properties of the outer cone part or the inner cone part of the attachment and / or - the possibilities for transport and / or storage of the outer cone attachment or the inner cone attachment and / or - to improve the effort required to protect the outer cone part or the inner cone part of the attachment against damage. Furthermore, the invention is based on the object of improving an attachment assembly with an outer cone part or an inner cone part of the attachment, as well as a method for handling an attachment assembly. SOLUTION

[0014] The object of the invention is achieved according to the invention with the features of the independent patent claims. Further preferred embodiments of the invention can be found in the dependent patent claims. DESCRIPTION OF THE INVENTION

[0015] The invention is based primarily on the realization that it may be necessary to protect an outer conical surface of an external conical attachment or an inner conical surface of an internal conical attachment. For example, a conical surface can be produced by milling. After the conical surface has been milled, it is necessary to prevent contamination and / or damage to the conical surface, which can be caused, for example, by mechanical influences and / or corrosion. It is also possible that the external conical attachment or the internal conical attachment should be painted after the conical surface has been manufactured, although painting the conical surface must be avoided.

[0016] It is well known to grease the cone surface for protection. The grease prevents the permanent deposition of paint on the cone surface, can at least reduce mechanical damage such as scratches on the cone surface, and protects the cone surface against corrosion. The disadvantages of these designs, however, are that applying the grease is laborious, the protective effect of the grease depends on the care taken by the person applying the grease, the grease can contaminate the environment during handling of the outer cone part or the inner cone part of the attachment, and removing the grease before assembly requires increased effort, with high demands on the care required for removing the grease.

[0017] For a first solution of the invention, an outer cone cover cap is proposed, which can be attached to an outer cone part of an attachment to protect an outer cone surface. The outer cone part of the attachment can be a coupling element forming the outer cone surface, which can then be attached or welded to a chord or tower, or the outer cone part of the attachment can be formed directly by the chord or tower.

[0018] The inventive attachment outer cone cover cap has a T-shaped longitudinal section. The T-shaped longitudinal section has a vertical leg and a horizontal leg.

[0019] The end sections of the horizontal leg are designed as angled conical legs. Since these conical legs extend around the longitudinal axis, they define an inner conical surface.

[0020] The vertical leg of the T-shaped longitudinal section has a fastening area. In the fastening area, the attachment outer cone cover cap can be fastened to the attachment outer cone part. The attachment outer cone cover cap and the attachment outer cone part are fastened in such a way, and with such a relative arrangement of the attachment outer cone cover cap and the attachment outer cone part, that the inner cone surface of the attachment outer cone cover cap is pressed against an outer cone surface of the attachment outer cone part. Therefore, to protect the outer cone surface, only the attachment outer cone cover cap must be fastened to the attachment outer cone part.The pressing of the inner cone surface of the attachment outer cone cover cap on the outer cone surface of the attachment outer cone part then ensures protection and, under certain circumstances, even sealing of the outer cone surface against the environment and any possible impairments in the area of ​​a circumferential contact or sealing line, a circumferential contact or sealing surface or, ideally, over the entire contact or sealing surface between the inner cone surface and the outer cone surface.

[0021] Within the scope of the invention, there are a variety of possible materials for the outer cone cover cap of the attachment part. According to one proposal of the invention, the outer cone cover cap is made of plastic. Any plastic can be used, which can also contain other particles or bevels to influence the mechanical and / or chemical properties. According to one proposal of the invention, the plastic is polypropylene (PP). Manufacturing the outer cone cover cap of the attachment part from plastic results in low weight and low manufacturing costs.

[0022] On the other hand, the use of plastic can already provide good damping or protection against impact mechanical stress. It is also possible (as explained in more detail below) that the elastic properties of the plastic can be advantageously utilized for the outer cone cover cap of the attachment part.

[0023] There are many possibilities for manufacturing the outer cone cover cap for the attachment part made of plastic. According to one proposal of the invention, the outer cone cover cap is manufactured using an injection molding process. A single- or multi-part mold can be used in the injection molding process, and a single- or multi-part core can be used in the injection molding process and the mold used. It is possible for the entire production of the outer cone cover cap for the attachment part to take place in the injection molding process. However, it is also entirely possible for further processing steps (such as cutting a thread or something similar) to be carried out after the injection molding process.

[0024] The invention encompasses any desired design of the fastening area with which the attachment outer cone cover cap can be fastened to the attachment outer cone part. According to one embodiment of the invention, the fastening area has a thread, a locking element, and / or a locking element that can be screwed, locked, and / or locked to a mating thread, mating locking element, or mating locking element of the attachment outer cone part.

[0025] The connection is made by screwing the thread and counter-thread.

[0026] During locking, a locking element engages behind a counter-locking element in a form-fitting manner, wherein the locking element and / or the counter-locking element is designed to be elastic and a contact surface of the locking element with the counter-locking element is an inclined surface with respect to the locking and unlocking direction, which is inclined in such a way that locking forces or unlocking forces generate forces on the inclined surface which, by utilizing the elasticity, eliminate the form-fitting connection between the locking element and the locking element.

[0027] In contrast, a locking mechanism cannot be released using elasticity. An example of a locking mechanism that can be used within the scope of the invention is a so-called bayonet connection, whereby a bayonet element of a bayonet connection with different bayonet grooves can be locked in different relative positions. It is even possible for at least one bayonet groove to be inclined relative to the circumferential direction, so that depending on the extent of the movement of the bayonet element along the bayonet groove, an axial relative movement occurs, which changes the contact pressure of the attachment's outer cone cover cap against the attachment's outer cone part.

[0028] In one embodiment of the invention, the vertical leg is designed as a locking and / or threaded sleeve. For example, the vertical leg can have circumferential ribs or a thread in the area of ​​its outer surface, which can be locked or screwed into corresponding grooves or threaded grooves.

[0029] In one proposal of the invention, the locking and / or threaded sleeve has at least one slot. The elasticity of the locking and / or threaded sleeve can be influenced via the slot. If, for example, the threaded sleeve is not only to be able to be screwed onto a mating thread of an external conical part of the attachment that has the external conical surface, but rather is also to be initially pressed in with a locking mechanism, the threaded sleeve can elastically yield radially as a result of the slot, which also reduces the diameter of the threads of the threaded sleeve. This means that the threaded sleeve can be inserted or "driven into" the internal thread of the external conical part of the attachment even without a screwing movement, while an additional screwing movement can then be used at the end of the insertion movement.

[0030] It is possible for the inner conical surface of the outer conical cover cap of the attachment to have the same conical angle as the outer conical surface of the outer conical part of the attachment. In this case, the aforementioned conical surfaces are in full contact with one another without significant contact force. On the other hand, identical conical angles may require the conical surfaces to be manufactured with high precision. In another proposal of the invention, the inner conical surface has a conical angle that is smaller than the conical angle of the outer conical surface of the outer conical part of the attachment.In this case, the attachment outer cone cover cap has an elasticity such that when the attachment outer cone cover cap is mounted on the attachment outer cone part and a contact pressure of the inner cone surface is generated against the outer cone surface, the inner cone surface expands such that its cone angle adapts to the cone angle of the outer cone surface, which then also ensures full-surface or large-surface contact of the cone surfaces.

[0031] As previously mentioned, the attachment outer cone cover cap can be mounted on the attachment outer cone part, for example, at least partially by pressing in or "hammering in." It is also possible for it to be screwed in by manually applying the forces required for screwing to the attachment outer cone cover cap. According to one proposal of the invention, the attachment outer cone cover cap has an engagement surface for a tool. The tool can be, for example, an open-end wrench, a screwdriver, or the like, with a correspondingly assigned engagement surface design. The engagement surface is preferably designed as an internal hexagon surface or as an internal polygonal surface, into which a hexagonal or polygonal tool can then engage in order to apply a tightening torque for screwing.

[0032] A further solution to the problem underlying the invention is provided by an attachment assembly in which an attachment outer cone cover cap, as previously explained, is held on an attachment outer cone part. In this case, individual or all of the previously explained interactions between the attachment outer cone part and the attachment outer cone cover cap can be implemented on the attachment assembly.

[0033] A further solution to the problem underlying the invention is a method for handling an attachment component assembly of the type explained above. In this method, the attachment outer cone part is first provided. For example, this involves the provision of a belt or a tower with an outer cone surface. Subsequently, the vertical leg of the attachment outer cone cover cap is inserted into a recess, in particular a bore inside the outer cone surface. This creates a connection between the fastening area of ​​the attachment outer cone cover cap and the attachment outer cone part, which preferably takes place inside the aforementioned bore. As explained above, this connection can be created by screwing.It is also possible for the insertion and connection to initially be carried out by a "ratchet-like" pressing in, in which, by utilizing elasticity, in particular by equipping a threaded sleeve with slots, locking projections, ribs, or a thread, several counter-locking projections, counter-grooves, or a counter-thread of the attachment outer cone part are successively passed. After such a ratchet-like pressing in, additional screwing can also take place at the end of the insertion, which then creates or increases the contact force of the attachment outer cone cover cap on the outer cone of the attachment outer cone part. Alternatively or cumulatively, it is possible for the described widening of the inner cone of the attachment outer cone cover cap to also occur at this time. Once the outer cone of the attachment outer cone part is protected in this way by the attachment outer cone cover cap, work steps can be carried out on or with the attachment assembly.For example, the outer cone attachment can then be painted or further processed without contaminating the outer cone surface with paint or material chips or damaging the outer cone surface. It is also possible to transport and / or store the attachment assembly in this protected state until it is installed on a work vehicle. For this purpose, the outer cone attachment cover cap is removed from the outer cone attachment.

[0034] The previously explained solutions have enabled the protection of an outer conical surface of an attachment outer conical part. A further solution to the problem underlying the invention proposes an attachment cover cap assembly, by means of which an inner conical surface of an attachment inner conical part can be protected. The attachment inner conical part can be a coupling element held on the chord or tower or connectable to it, or the attachment inner conical part can be the chord or tower itself.

[0035] The attachment cover cap assembly according to the invention has two cover parts. The two cover parts are each T-shaped in longitudinal section and each have a vertical leg and a horizontal leg of the T. The two cover parts can be connected to one another via their two vertical legs when arranged in alignment. With such a connection of the two vertical legs to one another, the attachment cover cap assembly has the shape of a horizontal H. In this H, the vertical legs of the T-shaped cover parts together form the connecting leg of the H, while the two horizontal legs of the T-shaped cover parts form the vertical legs of the H. When mounted on an attachment inner cone part, the connecting leg of the H then extends inside and along an axis of symmetry of an inner cone surface of the attachment inner cone part.The two vertical legs of the H each close one end area of ​​the inner cone surface, whereby the inner cone surface can be protected against corrosion by the vertical legs as a result of a possible sealing and the inner cone surface can also be protected against contamination or mechanical impairments.

[0036] Within the scope of the invention, there are a variety of possibilities for the type of connection between the two vertical legs of the T-shaped cover parts. Preferably, the two vertical legs of the T-shaped cover parts are connected via a screw, snap-in, and / or locking connection, for which the same fundamental principles apply as for the screw, snap-in, and locking connections of the external cone cover cap of the attachment. Here, too, it is possible for the connection to initially allow for a ratchet-like interlocking for assembly, while then additional screwing takes place at the end of the connection.

[0037] According to one embodiment of the invention, at least one vertical leg of the T-shaped cover part has a threaded, locking, and / or locking sleeve. Such a threaded, locking, and / or locking sleeve can then have an outer surface or inner surface that forms the thread, the locking element, or the locking element. The vertical leg of the T-shaped cover part can then be received in an inner bore of the vertical leg of the other T-shaped cover part or can itself internally accommodate the other vertical leg, thereby creating the threaded connection, locking connection, or locking connection.

[0038] Here too, the threaded, detent and / or locking sleeve can have at least one slot to ensure the required elasticity. If a threaded, detent and / or locking sleeve is equipped with at least one slot for the embodiments explained, the slot can be open in the opposite direction to the assembly direction. This results in the "spring arms" formed by the locking sleeve on both sides of the slot being very long at the beginning of insertion, so that these spring arms have a high degree of flexibility, allowing a simple ratchet-like pressing in initially. However, as the threaded, detent and / or locking sleeve is inserted further, the effective length of the spring arm becomes increasingly shorter, resulting in a gradual reduction in flexibility. Ratchet-like pressing in therefore requires an ever-increasing pressing force, which then allows the transition to screwing in.

[0039] Within the scope of the invention, there are different possibilities for the type of closure of the end area of ​​the inner conical surface by the vertical leg of the H, which can be used alternatively or cumulatively:

[0040] In one proposal, an end face of a vertical leg of the H rests against the inner cone surface in the associated end region of the inner cone surface. This has the advantage that the inner cone surface is not just closed from the outside, but in its end region itself. Under certain circumstances, this also allows a flush arrangement of the vertical leg of the H with the outer surface of the add-on inner cone part, or only a small overhang of the cover part is guaranteed. If this end face of the vertical leg of the H is not only to rest against the inner cone surface with a small circumferential surface or even with linear contact, the end face can also be designed to be spherical or convex in a longitudinal section. In one proposal of the invention, the end face is designed as a (truncated cone-shaped) cone surface. The cone angle of this cone surface can correspond to the cone angle of the inner cone surface.

[0041] In another proposal, a vertical leg of the H is supported in the associated end region of the inner cone surface on an outer surface of the attachment inner cone part, which borders the end region of the inner cone surface. If the attachment inner cone part is, for example, a sheet metal part into which the inner cone is milled, the support takes place on the outer surface of the sheet metal part in the region of an annular surface that surrounds the inner cone surface. In this case, the outer surface is preferably formed transversely to the connecting leg. The vertical leg of the H is then supported on the outer surface not with the end face, but with a side surface of the vertical leg of the H.

[0042] In this case, too, an engagement surface for a tool (in particular an internal hexagon surface or an internal polygonal surface) can be present, which can then be provided on at least one cover part (preferably both cover parts).

[0043] The longitudinal extension of the vertical legs of the cover parts and the connecting areas arranged on them determine the extension of the connecting leg and thus the spacing of the vertical legs of the H for which a connection can be made. This length therefore also determines which manufacturing tolerances for the inner cone surface can be compensated. Depending on the length of the vertical legs, it is even possible to use the same attachment cover cap assembly for different inner cone surfaces, namely inner cone surfaces with the same cone angle but different inner cone surface depths.

[0044] As a further proposal for solving the problem underlying the invention, the invention proposes a set. This set comprises, on the one hand, an attachment cover cap assembly, as previously explained. This attachment cover cap assembly thus comprises the two cover parts, wherein the cover parts each have vertical legs with specific lengths, which can then also be mounted for different depths of the inner conical surfaces that correlate with the lengths. However, the set then contains a further cover part whose vertical leg has a different length than a corresponding cover part of the two cover parts of the attachment cover cap assembly. In this case, the corresponding cover part can then be optionally combined with a cover part with the appropriate one of the two lengths in order to then be designed to cover an inner conical surface with a specific depth.With the at least three parts of the set, the range of depths of the inner cone surfaces that can be protected with the set can be increased.

[0045] A further solution to the problem underlying the invention is provided by an attachment component assembly comprising, on the one hand, an attachment inner cone component and, on the other hand, an attachment cover cap assembly held thereto, as previously explained. Here, too, individual or all of the previously explained interactions between the attachment inner cone component and the attachment cover cap assembly can be utilized.

[0046] A further solution to the problem underlying the invention is a method for handling an attachment assembly, in which an attachment inner cone part is first provided. This can be a coupling element with an inner cone surface, which can be attached or welded to a chord or a tower. However, it is also possible for the attachment inner cone part to be the chord or the tower, which then itself has the inner cone surface.

[0047] In the method, one of the cover parts is inserted from one side of the inner conical surface of the attachment inner conical part. Subsequently, the other cover part is inserted from the other side of the inner conical surface of the attachment inner conical part. The vertical legs of the T-shaped cover parts are then connected to one another in an assembly position in which the horizontal legs of the T-shaped cover parts each close an end region of the inner conical surface, as previously explained. The connection can be established, for example, by ratcheting in and / or screwing. Once a connection has been established in this way and the end regions of the inner conical surface have been closed in this way, the work steps on the attachment component, in particular milling, painting, etc., can be carried out.Alternatively or additionally, the attachment assembly can be transported and / or stored. During these steps, the inner cone surface is reliably protected from contamination, corrosion, and mechanical damage by the two cover parts. The two cover parts are then removed, preferably immediately before the attachment inner cone part is installed on the work vehicle.

[0048] Advantageous further developments of the invention emerge from the patent claims, the description and the drawings.

[0049] The advantages of features and combinations of several features mentioned in the description are merely exemplary and can be effective alternatively or cumulatively, without the advantages necessarily having to be achieved by embodiments according to the invention.

[0050] With regard to the disclosure content – ​​not the scope of protection – of the original application documents and the patent, the following applies: Further features can be found in the drawings – in particular the illustrated geometries and the relative dimensions of several components to one another, as well as their relative arrangement and operative connection. The combination of features of different embodiments of the invention or features of different patent claims is also possible, deviating from the chosen references of the patent claims, and is hereby encouraged. This also applies to features that are illustrated in separate drawings or mentioned in their description. These features can also be combined with features of different patent claims.Likewise, features listed in the patent claims may be omitted for further embodiments of the invention, but this does not apply to the independent patent claims of the granted patent.

[0051] The number of features mentioned in the claims and the description is to be understood as meaning that exactly this number or a greater number than the stated number is present, without the need for the explicit use of the adverb "at least." Thus, for example, if reference is made to one element, this is to be understood as meaning that exactly one element, two elements, or more elements are present. The features mentioned in the claims may be supplemented by further features or may be the only features present in the subject matter of the respective claim.

[0052] The reference signs contained in the patent claims do not represent a limitation of the scope of the subject-matter protected by the patent claims. They serve solely to make the patent claims easier to understand. BRIEF DESCRIPTION OF THE CHARACTERS

[0053] In the following, the invention is further explained and described with reference to preferred embodiments shown in the figures. Fig. 1 to 5 show an attachment outer cone cover cap ( Fig. 1: Longitudinal section; Fig. 2: View from above; Fig. 3: View from the side; Fig. 4: View from below; Fig. 5: spatial view); Fig. 6 shows an attachment assembly in which an attachment outer cone cover cap according to Fig. 1 to 5 is attached to an attachment outer cone part, in a side view. Fig. 7 shows the attachment assembly according to Fig. 6 in a section VII-VII. Fig. 8 to 11 show a first cover part of an attachment cover cap assembly ( Fig. 8: Longitudinal section; Fig. 9: View from above; Fig. 10: Side view; Fig. 11: View from below). Fig. 12 and Fig. 13 show a second cover part of the attachment cover cap assembly ( Fig. 12: Longitudinal section; Fig. 13: spatial view). Fig. 14 and Fig. 15 show another embodiment of the second cover part according to Fig. 12 and Fig. 13 ( Fig. 14: Longitudinal section; Fig. 15: spatial view). Fig. 16 and Fig. 17 show an attachment cover cap assembly with a first cover part according to Fig. 8 to 11 and a second cover part according to Fig. 12 and Fig. 13 ( Fig. 16: Side view; Fig. 17: sectioned representation XVII-XVII). Fig. 18 shows in a sectional view an attachment cover cap assembly with a first cover part according to Fig. 8 to 11 and a second cover part according to Fig. 14 and Fig. 15. Fig. 19 shows a connection option for a connection of a fastening area of ​​an attachment part inner cone cover cap according to Fig. 1 to 5 with an external conical attachment or for the connection of the cover part according to Fig. 8 to 11 with the cover part according to Fig. 12 and Fig. 13 respectively Fig. 14 and Fig. 15. FIGURE DESCRIPTION

[0054] Fig. 1 to 5 show an attachment outer cone cover cap 1. The attachment outer cone cover cap 1 has according to Fig. 1 has a longitudinal section that is, to a first approximation, T-shaped. The T-shaped longitudinal section has a vertical leg 2 and a horizontal leg 3.

[0055] The horizontal leg 3 has a central partial leg 4 and external, angled conical legs 5, 6. The conical legs 5, 6 delimit a (truncated cone-shaped) inner conical surface 7 that runs around the longitudinal axis. The inner conical surface 7 has a conical angle 8. In the area of ​​the upper end face and the partial leg 4, the attachment outer conical cover cap 1 has an engagement surface 9 for a tool, which is designed here as an inner polygonal surface 10.

[0056] The vertical leg 2 of the attachment outer cone cover cap 1 has a fastening area 11. In the illustrated embodiment, the fastening area 11 has a thread 12 in the area of ​​its outer surface. In the illustrated embodiment, the vertical leg 2 has a recess 13 designed as a blind hole in the end area facing away from the horizontal leg 3. Thus, the vertical leg 2 forms a threaded sleeve 14 providing the thread 12.

[0057] The longitudinal extent of the vertical leg 2 on the one hand and the cone angle 8 and the length of the cone legs 5, 6 on the other hand are selected such that the fastening area 11 with the thread 12 extends at least partially downwards out of the inner cone surface 7, so that at least one end area of ​​the thread 12 is freely accessible. Although this is not necessarily the case, the cone legs 5, 6 have a constant wall thickness in the direction of their longitudinal extent. For the illustrated embodiment, the overall wall thickness of the attachment outer cone cover cap 1 in the area of ​​the threaded sleeve 14, the horizontal leg 3 with the partial leg 4 and the cone legs 5, 6 and in the area of ​​a base 15 between the engagement surface 9 and the recess 13 varies by a maximum of 20% or a maximum of 10%.For the illustrated embodiment, the attachment outer cone cover cap 1 (except for the engagement surface 9 and the thread 12) is rotationally symmetrical to its longitudinal axis.

[0058] Fig. 6 and Fig. 7 show an attachment assembly 16 in which the attachment outer cone cover cap 1 according to Fig. 1 to 5 is attached to an attachment outer cone part 17. In the illustrated embodiment, the attachment outer cone part 17 consists of a belt 18 (or for another embodiment, a tower 19) to which a coupling element 20 is attached, in particular welded. The coupling element 20 has an outer cone surface 21. It is possible for a cone angle 22 of the outer cone surface 21 of the attachment outer cone part 17 to correspond to the cone angle 8 of the inner cone surface 7 of the attachment outer cone cover cap 1. Preferably, however, the cone angle 22 is slightly larger, in particular in the range from 1° to 5° or in the range from 2° to 4°, larger than the cone angle 8. For example, the cone angle 22 can be an angle of 60°, while the cone angle 8 is an angle of 57°.

[0059] The coupling element 20 has a continuous inner bore 23, in which a counter-fastening area 24 is provided. Through the interaction of the fastening area 11 of the attachment outer cone cover cap 1 with the counter-fastening area 24 of the attachment outer cone part 17, a connection can be established for the purpose of fastening the attachment outer cone cover cap 1 to the coupling element 20. In the illustrated embodiment, the counter-fastening area 24 has a counter-thread 25 in the area of ​​the inner surface, which can be screwed to the thread 12.

[0060] The attachment outer cone cover cap 1 in conjunction with an attachment outer cone part 17 is used as follows: First, an attachment outer cone part 17 is provided. When the longitudinal axis of the attachment outer cone cover cap 1 is aligned coaxially with a longitudinal axis of the inner bore 23 of the attachment outer cone part 17, here the screw axis of the counter thread 25, the attachment outer cone cover cap 1 is placed from above onto the attachment outer cone part 17 and by rotating the attachment outer cone cover cap 1 relative to the attachment outer cone part 17, the thread 12 is screwed to the counter thread 25. In this case, a screwing torque can be applied via the contact surface 9. Upon reaching the end position according to Fig. 7, the inner cone surface 7 of the attachment outer cone cover cap 1 rests over its entire surface against the outer cone surface 21 of the attachment outer cone part 17. In the event that the cone angle 22 of the outer cone surface 21 is greater than the cone angle 8 of the inner cone surface 7, the tightening torque leads to an elastic deformation of the attachment outer cone cover cap 1 until the inner cone surface 7 rests over its entire surface against the outer cone surface 21. It is possible that an elastic deformation of the attachment outer cone cover cap 1 occurs, which preferably occurs in the area of ​​the partial leg 4 and / or in the area of ​​the cone legs 5, 6. The design of the elasticity of the horizontal leg 3, the wall thickness of the horizontal leg 3 and the course of the wall thickness of the horizontal leg 3 can influence which contact forces act at which point in the area of ​​the contact surface between the outer cone surface 21 and the inner cone surface 7.

[0061] It can be seen that the inner bore 23 of the attachment outer cone part 17 is sealed on the side facing away from the attachment outer cone cover cap 1 by a closure cap 26, wherein the closure cap 26 can be designed as a standardized closure cap.

[0062] If the outer cone surface 21 of the attachment outer cone part 17 is as in Fig. 6 and Fig. 7, protected by the attachment outer cone cover cap 1, the necessary work steps can be carried out on the attachment assembly 16, for example, milling, creating additional bores or recesses on the attachment outer cone part 17, welding additional components to the attachment outer cone part 17, painting, etc. It is also possible for the attachment assembly 16 to be transported or stored until the attachment outer cone part 17 is mounted on the work vehicle. For this purpose, the attachment outer cone cover cap 1 (and the closure cap 26) must then be removed again. This can be done by unscrewing the attachment outer cone cover cap 1. However, it is also possible for this to be done by destroying the attachment outer cone cover cap 1 or by knocking it out of the inner bore 23 by Fig. 7 a tool is inserted into the inner bore 23 from below and the tool is struck onto the lower end face of the attachment outer cone cover cap 1.

[0063] It is possible for the threaded sleeve 14 to have longitudinally oriented slots in the area of ​​the thread 12 or even beyond, which slots extend from the free end area of ​​the threaded sleeve 14, so that the slots are open on the side facing away from the horizontal leg 3. These slots increase the elasticity of the threaded sleeve 14 by forming thread segments of spring arms that are delimited in the circumferential direction by the slots. Such a weakening of the threaded sleeve 14 can be used to enable the attachment outer cone cover cap 1 to be pressed into the attachment outer cone part 17 or to be struck in, during which the thread 12 of the attachment outer cone cover cap 1 jumps "ratchet-like" along the threads of the mating thread 25, before the attachment outer cone cover cap 1 is tightened in its end position.

[0064] Fig. 8 to 11 show a first cover part 27. The cover part 27 is in the Fig. 8 shown longitudinal section is T-shaped with a vertical leg 28 and a horizontal leg 29.

[0065] In the area of ​​the horizontal leg 29, the cover part 27 has an engagement surface 30 for a tool. In the illustrated embodiment, the engagement surface 30 is designed as an internal polygonal surface 31. The horizontal leg 29 is linear here. In the end region 32, the horizontal leg 29 has an end face 33. In the illustrated embodiment, the end face 33 is designed as a conical surface 34 with a conical angle 35.

[0066] The vertical leg 28 of the cover part 27 forms a fastening area 36. For the illustrated embodiment, the fastening area 36 is designed as a threaded sleeve 37 which has a thread 38 in the region of its inner surface. The threaded sleeve 37 has slots 39a, 39b, 39c, 39d which are evenly distributed in the circumferential direction. The slots 39 originate from the end face of the threaded sleeve 37 facing away from the horizontal leg 29, extend parallel to the longitudinal axis of the cover part 27 and over the entire vertical leg 28 up to the horizontal leg 29. Between adjacent slots 39, the thread 38 forms spring arms 40 with threaded sections 41. The threaded sections 41 can spring radially outwards.

[0067] The cover part 27 is (except for the thread 38, the slots 39 and the engagement surface 30) rotationally symmetrical to the longitudinal axis.

[0068] Fig. 12 and Fig. 13 show a second cover part 42, which is designed as a type of screw. The cover part 42 has a T-shaped longitudinal section, wherein in the illustration according to Fig. 12 the T is upside down. The T-shaped longitudinal section of the cover part 42 has a horizontal leg 43 and a vertical leg 44.

[0069] The horizontal leg 43 is linear. On the side facing the vertical leg 44, the horizontal leg 43 forms an annular support surface 45. The cover part 42 has an engagement surface 46 in the area of ​​the horizontal leg 43, which is also designed as an inner polygonal surface 47.

[0070] The vertical leg 44 of the cover part 42 has a fastening area 48. For the illustrated embodiment, the fastening area 48 is designed as a threaded sleeve 49 which has a thread 50 in the area of ​​its outer surface.

[0071] In the Fig. 14 and Fig. 15 shows a cover part 42 which basically corresponds to the cover part 42 according to Fig. 12 and Fig. 13. However, here the vertical leg 44 and the threaded sleeve 49 with the thread 50 have a greater longitudinal extension.

[0072] Fig. 16 and Fig. 17 show an attachment component assembly 51. The attachment component assembly 51 has an attachment component inner cone component 52. The attachment component inner cone component 52 can be designed as a coupling element which is connected to a belt or tower, in particular by welding. For the attachment component shown in the Fig. 16 and Fig. In the embodiment shown in Figure 17, the attachment inner cone part 52 is designed directly as a tower 53, although it is also possible for it to be designed as a flange 54. The tower 53 (or flange 54) has an inner cone surface 55 with a cone angle 56. The inner cone surface 55 is continuous and open on both sides.

[0073] In the add-on assembly 51, the inner conical surface 55 is closed on both sides by the two cover parts 27, 42. For this purpose, the cover part 27 is brought closer to the inner conical surface 55 in a direction opposite to the opening of the inner conical surface 55. In the illustrated assembly position, the end face 33, in particular the conical surface 34, lies flat against the inner conical surface 55 in its outer end region 57. For this purpose, the conical surface 34 and the inner conical surface 55 preferably have the same cone angle. The vertical leg 28 with the threaded sleeve 37 of the cover part 27 extends within the inner conical surface 55 and coaxially to the longitudinal axis of the inner conical surface 55.

[0074] The cover part 42 is inserted into the inner conical surface 55 from the side of the inner conical surface 55 with the smaller diameter, using the vertical leg 44. In the illustrated assembly position, the cover part 42 rests with the support surface 45 against an outer surface 58 adjacent to the inner conical surface 55 with an annular contact surface. The cover parts 27, 42 are connected by connecting the fastening areas 36, 48. This can initially be done for a ratchet-like insertion movement, during which the threaded sections 41 of the thread 38 elastically compress radially inward, allowing the thread turns of the threads 38, 50 to be skipped. After such insertion for a type of pre-assembly, the cover parts 27, 42 can then be screwed together, for which purpose suitable tools can engage the engagement surfaces 30, 46.When a sufficient tightening torque is applied, a seal and protective effect for the inner conical surface 55 is ensured at the contact surfaces on the one hand of the conical surface 34 of the cover part 27 with the inner conical surface 55 and on the other hand of the support surface 45 of the cover part 42 with the outer surface 58 of the attachment part inner conical part 52.

[0075] The two cover parts 27, 42 form an attachment cover cap assembly 60 with which an inner conical surface 55 of the tower 53 or belt 54 can be protected.

[0076] If the attachment inner cone part 52 has a different thickness, as shown in Fig. 18, an inner conical surface 55 can still be protected with the same cover part 27, while then a cover part 42 according to Fig. 14 and Fig. 15 with a larger longitudinal extension of the vertical leg 44 and the threaded sleeve 49. In this way, the number of identical parts can be increased to enable protection of different inner cone surfaces. Thus, a set with one cover part 27 and at least two cover parts 42 with different longitudinal extensions can be used.

[0077] In Fig. 17 and Fig. 18, the attachment cover cap assembly 60 forms a type of horizontal H. Here, the connecting leg 61 of the H is formed by the two interconnected vertical legs 28, 44, while the vertical legs 62, 63 of the H are formed by the horizontal legs 29, 43 of the cover parts 27, 42. The attachment inner cone part 52 is captured between the two vertical legs 62, 63 of the attachment cover cap assembly 60.

[0078] Fig.Figure 19 shows an example of a design that can be used for thread 12, counter-thread 25, thread 38, or thread 50. For example, a trapezoidal thread or a conventional thread can be used. During ratchet-type pressing, the inclined surfaces 59 of the thread generate a radial force component, which can cause radial expansion or compression of the threaded sections (e.g., threaded section 41). The required insertion force for ratchet-type insertion can be influenced by selecting the angle of inclination of the inclined surface 59. LIST OF REFERENCE SYMBOLS 1 attachment outer cone cover cap 2 vertical legs 3 horizontal legs 4 partial legs 5 cone legs 6 conical legs 7 inner cone surface 8 cone angles 9 Attack surface 10 Internal polygonal surface 11 Mounting area 12 threads 13 Recess 14 threaded sleeve 15 Floor 16 Attachment assembly 17 Attachment outer cone part 18 belt 19 Tower 20 coupling element 21 Outer cone surface 22 cone angles 23 inner bore 24 Counter-fastening area 25 counter threads 26 Cap 27 Lid part 28 vertical legs 29 horizontal legs 30 Attack surface 31 Internal polygonal surface 32 End area 33 front side 34 Conical surface 35 cone angle 36 Mounting area 37 threaded sleeve 38 threads 39 slot 40 spring arm 41 Threaded section 42 Lid part 43 horizontal legs 44 vertical legs 45 support surface 46 Attack surface 47 Internal polygonal surface 48 Mounting area 49 threaded sleeve 50 threads 51 Attachment assembly 52 Attachment inner cone part 53 Tower 54 belt 55 inner cone surface 56 cone angle 57 End area 58 exterior area 59 Inclined surface 60 Attachment cover cap assembly 61 connecting legs 62 vertical legs 63 vertical legs

Claims

[1] Use a) an attachment outer cone cover cap (1) with a T-shaped longitudinal section with a vertical leg (2) and a horizontal leg (3), wherein the horizontal leg (3) has angled cone legs (5, 6) which delimit an inner cone surface (7), and the vertical leg (2) has a fastening area (11), b) for fastening the attachment outer cone cover cap (1) in the fastening area (11) to an attachment outer cone part (17) with a belt (18) for a work vehicle or with a tower (19) for a work vehicle, to which a coupling element (20) is fastened, which has an outer cone surface (21), wherein the inner cone surface (7) of the attachment outer cone cover cap (1) is pressed against the outer cone surface (21) of the attachment outer cone part (17). [2] Use of the attachment outer cone cover cap (1) according to claim 1, characterized bythat the attachment outer cone cover cap (1) is made of plastic. [3] Use of the attachment outer cone cover cap (1) according to claim 2, characterized by that the attachment outer cone cover cap (1) is manufactured using an injection molding process. [4] Use of the attachment outer cone cover cap (1) according to one of the preceding claims, characterized by that the fastening area (11) has a thread (12), a latching element and / or a locking element which can be screwed, latched and / or locked with a counter-thread (25), counter-latching element or counter-locking element of the attachment outer cone part (17). [5] Use of the attachment outer cone cover cap (1) according to claim 4, characterized by that the vertical leg (2) has a locking and / or threaded sleeve (14). [6] Use of the attachment outer cone cover cap (1) according to claim 5, characterized bythat the locking and / or threaded sleeve (14) has at least one slot. [7] Use of the attachment outer cone cover cap (1) according to one of the preceding claims, characterized by that the inner cone surface (7) has a cone angle (8) which is smaller than a cone angle (22) of the outer cone surface (21) of the attachment outer cone part (17), and the attachment outer cone cover cap (1) has an elasticity which enables the cone angle (8) of the inner cone surface (7) to adapt to the cone angle (22) of the outer cone surface (21) as a result of the inner cone surface (7) of the attachment outer cone cover cap (1) being pressed against the outer cone surface (21) of the attachment outer cone part (17). [8] Use of the attachment outer cone cover cap (1) according to one of the preceding claims, characterized by that an engagement surface (9) for a tool is present. [9] Attachment assembly (16) with an attachment outer cone part (17) and an attachment outer cone cover cap (1) held thereon and used according to one of claims 1 to 8. [10] Method for handling an add-on assembly (16) according to claim 9, comprising the following method steps: a) provision of the attachment outer cone part (17); b) inserting the vertical leg (2) of the attachment outer cone cover cap (1) into a recess of the attachment outer cone part (17) and connecting the fastening area (11) of the attachment outer cone cover cap (1) to the attachment outer cone part (17) in an assembly position in which the inner cone surface (7) of the attachment outer cone cover cap (1) is pressed against an outer cone surface (21) of the attachment outer cone part (17); c) carrying out work steps on the attachment assembly (16) and / or transporting the attachment assembly (16) and / or storing the attachment assembly (16); d) Removal of the attachment outer cone cover cap (1). [11] Use a) an attachment cover cap assembly (60) with two cover parts (27, 42), wherein aa) the two cover parts (27; 42) are each T-shaped with a vertical leg (28; 44) and a horizontal leg (29; 43), ab) the two vertical legs (28; 44) can be connected to each other and ab) when the two vertical legs (28; 44) are connected to one another, the attachment cover cap assembly (60) has the shape of a horizontal H, in which the vertical legs (28; 44) of the T-shaped cover parts (27; 42) together form the connecting leg (61) of the H and the two horizontal legs (29; 43) of the T-shaped cover parts (27; 42) form the vertical legs (62, 63) of the H, b) for mounting on an add-on inner cone part (52) which is fastened to a belt (53) or tower (54) of a work vehicle or is formed directly by the belt (53) or tower (54) of the work vehicle and has an inner cone surface (55), wherein in an assembled state the connecting leg (61) of the H extends inside the inner cone surface (55) of the add-on inner cone part (52) and the vertical legs (62, 63) of the H each close an end region of the inner cone surface (55). [12] Use of an attachment cap assembly (60) according to claim 11, characterized by that the connection of the two vertical legs (28, 44) of the T-shaped cover parts (27, 42) is a screw, snap-in and / or locking connection. [13] Use of an attachment cap assembly (60) according to claim 12, characterized bythat at least one vertical leg (28, 44) of the T-shaped cover parts (27, 42) has a threaded, locking and / or locking sleeve (37, 49). [14] Use of an attachment cap assembly (60) according to claim 13, characterized by that the threaded, locking and / or locking sleeve (37) has at least one slot (39). [15] Use of an attachment cap assembly (60) according to one of claims 11 to 14, characterized by that an end face (33) of a vertical leg (62) of the H rests against the inner conical surface (55) in the associated end region. [16] Use of an attachment cover cap assembly (60) according to claim 15, characterized by that the front side (33) is designed as a conical surface (34). [17] Use of an attachment cap assembly (60) according to one of claims 11 to 16, characterized bythat a vertical leg (63) of the H is supported on an outer surface (58) of the attachment inner cone part (52) which borders on the end region of the inner cone surface (55). [18] Use of an attachment cap assembly (60) according to one of claims 11 to 17, characterized by that at least one cover part (27, 42) has an engagement surface (30, 46) for a tool. [19] Set comprising an attachment cap assembly (60) used according to one of claims 11 to 18 and a further cover part (42) whose vertical leg (44) has a different length than the cover part (42) of the attachment cap assembly (60). [20] Attachment assembly (51) with an attachment inner cone part (52) and an attachment cover cap assembly (60) held thereon and used according to one of claims 11 to 18. [21] Method for handling an add-on assembly (51) according to claim 20, comprising the following method steps: a) providing the attachment inner cone part (52); b) inserting a cover part (27) from one side of the inner cone surface (55) of the attachment inner cone part (52); c) inserting the other cover part (42) from the other side of the inner conical surface (55) of the add-on inner conical part (52) and connecting the vertical legs (28, 44) of the cover parts (27, 42) to one another in an assembly position in which the horizontal legs (29, 43) of the cover parts (27, 42) each close an end region of the inner conical surface (55); d) carrying out work steps on the add-on assembly (51) and / or transporting the add-on assembly (51) and / or storing the add-on assembly (51); e) Removal of the two cover parts (27, 42).

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