Attachment device for outboard drive

Abstract

The present invention relates to an outboard drive (100-400) with a fastening device (10) for fastening the outboard drive to a boat (1). The fastening device can comprise a fastening unit (13) and a swing arm unit (12) that can be pivoted relative to the fastening unit, wherein a lever unit (04) is arranged on the swing arm unit, via which lever unit the swing arm unit can be positioned in at least three different pivot positions relative to the fastening unit. Furthermore, by switching an adjusting part (70), at least three different steering angle ranges (75, 76) of a drive unit (50) can be adjusted relative to the fastening device (10). Furthermore, the outboard drive (100-400) can be converted between a tiller steering mode and a remote control steering mode.Furthermore, a tiller (20) of the outboard drive can be interchangeable between a normal operating position in which it is prevented from pivoting towards the fastening device and a transport position in which it is folded towards the fastening device and prevents a rotational movement of the drive unit.

Description

Technical field

[0001] The present invention relates to a fastening device for fastening an outboard drive to a boat and an outboard drive for a boat. State of the art

[0002] Outboard drives and motors are a common means of propulsion for boats. They are usually attached to the stern of the boat via a mounting device, particularly a transom mount. Boats can have various stern shapes. If the transom has a flat stern plate, it is also referred to as a "transom." The transom can be inclined at different angles relative to the water surface. It can be perpendicular to the water surface, protrude diagonally above the water surface, or be tilted toward the interior of the boat. Furthermore, the inclination of the transom relative to the water surface can vary depending on the boat's operating and / or loading conditions.

[0003] In order to operate an outboard motor as optimally as possible, the propeller shaft of the outboard motor's propeller unit, i.e., the propeller's rotation axis, should be aligned essentially parallel to the water surface during normal operation. This necessitates "trimming" the outboard motor. In the context of the present disclosure, "trimming" refers to tilting or pivoting the outboard motor, or more precisely, a shaft unit of the outboard motor holding the propeller shaft, about its transverse axis, or about the transverse axis of the boat, in order to adjust the position of the outboard motor, in particular the propeller axis, with respect to the water surface. Accordingly, it is common practice to provide various trim positions, particularly in the form of pivot positions, for the outboard motor.

[0004] Trimming is usually done once to adjust the alignment of the outboard drive unit for normal operation later during use, more precisely the axis of rotation of the propeller in relation to the boat to which the outboard drive is attached.

[0005] For trimming, it is known to provide a plurality of spaced-apart trim holes on the fastening unit and to insert a trim bolt through one of the trim holes in order to achieve a predetermined angle of the shaft unit. The trim hole into which the trim bolt is inserted is selected so that the shaft unit, in a rest position and / or during anticipated or actual normal operation, is oriented as close as possible to a vertical alignment to the water surface, or the propeller shaft is oriented as close as possible to an alignment parallel to the (theoretically mirror-smooth) water surface, i.e. as close as possible to 0° to the water surface. This initially selected trim position represents the permanent trim position of the outboard motor, or more precisely of the propeller shaft, i.e. the 0° position.

[0006] The term "tilt" also refers to the tilting or pivoting of the outboard motor about its transverse axis, or about the transverse axis of the boat. However, tilting essentially refers to the purpose of pivoting the outboard motor from an operating position, such as the trim position (0° position), in which the outboard motor is submerged in the water, to a safety or parking position in which the outboard motor is pivoted as far out of the water as possible. In this disclosure, the above-water position achieved by tilting the outboard motor, or more precisely the propeller unit, out of the water is referred to as the "tilt position."

[0007] An outboard motor is typically attached or secured to the transom of a boat using a bracket, such as a clamp or transom mount. If a boat doesn't have a transom as such, for example, because it has an open stern, a mounting plate is usually provided in the stern area for attaching the outboard motor. If the mounting plate is essentially perpendicular to the water surface or at a typical angle as described above and is suitable for accommodating an outboard motor, it is also included in the term "transom" below.

[0008] Known brackets can fix an outboard motor in various positions to provide pivoting positions for the outboard motor.

[0009] For example, US 8,684,328 B2 describes a fastening device for a pivoting bracket of an outboard motor, which can be attached to various mounting positions on differently shaped boats. A locking element is attached to a shaft of the outboard motor by means of a clamping screw and engages with two parallel, toothed quarter-circle discs of the device. One area that could be improved is that pivoting the outboard motor can be difficult for the user. To do so, the user must first loosen the clamping screw of the locking element, then pivot the outboard motor and hold it in the desired target position, while simultaneously readjusting and tightening the locking element.Furthermore, when using this device, the outboard is rigidly connected to the mount in the preset position in the locked state, particularly in its pivoting position. In shallow waters, there is a risk of the outboard colliding with an underwater obstacle or the bottom of the water, resulting in damage to the outboard, the mounting device, and / or the boat.

[0010] CN 104627343 A shows an outboard drive with a fastening device which can be pivoted between an underwater position provided as the operating position and an above-water position representing a tilt position, wherein a blocking block is spring-loaded into a first blocking position in the underwater position and is spring-loaded into a second blocking position in the above-water position. Description of the invention

[0011] Based on the known prior art, it is an object of the present invention to provide an improved fastening device for attaching an outboard drive to a boat, as well as an improved outboard drive.

[0012] The object is achieved according to a first aspect by a fastening device for attaching an outboard drive to a boat having the features of claim 1. Advantageous further developments emerge from the subclaims, the description and the figures.

[0013] Accordingly, a fastening device for fastening an outboard drive to a boat is proposed, comprising a fastening unit configured to fasten the outboard drive, more precisely the fastening device, to the boat, and a swing arm unit pivotable about a predetermined transverse axis around the fastening unit, which swing arm unit is configured to hold a shaft unit of the outboard drive. A lever unit is arranged on the swing arm unit, via which lever unit the swing arm unit can be positioned relative to the fastening unit at at least three different pivot positions. Particularly preferably, the swing arm unit can be positioned relative to the fastening unit at at least four different pivot positions.

[0014] Accordingly, the swing arm unit can be adjusted to any of the aforementioned pivot positions by operating the lever unit.

[0015] In particular, positioning in at least three different pivoting positions can be achieved by the single lever unit.

[0016] This makes it possible, among other things, to reduce the total number of individual parts of the fastening device compared to conventional devices according to the state of the art, in particular cost-intensive stainless steel parts and welded assemblies.

[0017] Furthermore, functions such as tilt, reverse lock, shallow water position, and run-up protection can be easily operated using a single lever unit. This operation can preferably be simplified one-handed.

[0018] Accordingly, the outboard drive can be conveniently raised with several swivel positions.

[0019] In the context of the present disclosure, pivoting the outboard motor about its transverse axis, or about the transverse axis of the boat, particularly includes trimming and / or tilting. Accordingly, when pivoting positions of the outboard motor are described below, both trim and tilt positions of the outboard motor are included.

[0020] The three pivot positions mentioned above can therefore include, for example, two trim positions and one tilt position. In other words, the swing arm unit, and thus the pivotable part of the outboard motor, can be positioned both in the tilt position and in at least two trim positions using the single lever unit. Other pivot positions can also preferably be provided, for example, a fixed trim position and at least three or four tilt positions.

[0021] In this disclosure, the longitudinal axis of a fastening device and / or an outboard drive corresponds to an axis which, in a properly fastened state in which the outboard drive is attached to the boat by means of the fastening device or the fastening device, corresponds to a boat longitudinal direction, i.e., a bow-stern direction of the boat. The transverse direction is perpendicular to the longitudinal axis and corresponds to a starboard-port direction. In an intended resting position of the boat in mirror-smooth water, the longitudinal direction and the transverse direction are oriented substantially parallel to the water surface.

[0022] In this disclosure, an orthogonal reference system common for vehicles is used to describe the fastening device and the outboard drive, particularly with respect to the outboard motor to be attached to the boat. Here, the X-axis denotes the longitudinal axis, the Y-axis the transverse axis, and the Z-axis the vertical axis of the boat when the boat is used as intended, that is, in particular when the boat is in the water. This allows the position and direction of the individual components of the proposed device, in the properly attached state, to be specified with respect to the outboard motor attached to the boat by means of the device.

[0023] According to one embodiment, one of the pivot positions can correspond to a trim position of a drive unit connected to the swing arm unit. The fastening device can thus be designed such that the swing arm unit is positioned in the trim position relative to the fastening unit via the lever unit.

[0024] According to a further embodiment, two, three, or particularly preferably four tilt positions can be provided as pivot positions. Using the lever unit, the swing unit can then be moved out of the trim position and then positioned in one of the tilt positions.

[0025] A "trim position" corresponds to the operating position described in the technical background, in which the propeller axis of the propeller unit is oriented as parallel as possible or even essentially parallel to the direction of travel or the (theoretically smooth) water surface. Depending on the application scenario, however, a slightly tilted trim position may also be provided, for example, to support the boat's behavior during the transition from displacement to planing.

[0026] A "downward swivel" corresponds to a swivel in which the center of gravity of the swiveled object, for example, the swing arm unit, is moved relative to the mounting unit around the transverse axis when the mounting unit is properly secured to the boat, to a lower height relative to the mounting unit. An "upward swivel" corresponds to a swivel in which the center of gravity of the swiveled object, for example, the swing arm unit, is moved relative to the mounting unit around the transverse axis when the mounting unit is properly secured to the boat, to a higher height relative to the mounting unit. Therefore, a moment must be applied that counteracts a moment about the transverse axis acting on the swing arm unit via the gravitational force and the mass of the swing arm unit and its attachments.

[0027] A swivel position can correspond to a tilt position of the drive unit connected to the swing arm unit. The tilt position can be a securing and / or parking position in which the outboard motor is pivoted as far as possible out of the water for securing and / or parking purposes. The tilt position generally corresponds to a maximum upward swivel position of the swing arm unit, in which a shaft unit arranged on the swing arm unit and the propeller unit arranged on it are pivoted as far as possible out of the water. It can correspond to an above-water position of the propeller unit or, synonymously, of the outboard motor, more precisely of the shaft unit and the propeller unit. The tilt position therefore represents an upper or stern-direction end position of the swing arm unit.

[0028] Optionally, more than one tilt position can be provided, for example, a first tilt position in which the swing arm unit is pivoted upwards by approximately 90° relative to the trim position, and a second tilt position in which the swing arm unit is pivoted upwards by approximately 75° relative to the trim position. The tilt positions have in common that they represent the above-water positions of the outboard drive, more specifically, the shaft unit and the propeller unit.

[0029] The terms "bow-direction-side" or "bow-direction-side swiveling" and "stern-direction-side" or "stern-direction-side swiveling" refer to the displacement of a propeller unit attached to the swing arm unit in relation to the bow-stern direction, i.e., the X-axis of the boat, when the fastening device is properly attached to the boat. "Bow-side" corresponds to a displacement of the swing arm unit or the propeller unit, more specifically, for example, a center of gravity of the swing arm unit or the propeller unit, bowward, i.e., toward the bow of the boat. "Stern-side" corresponds to a displacement of the swing arm unit or the propeller unit, more specifically, for example, the center of gravity of the swing arm unit or the propeller unit, sternward, i.e., toward the stern of the boat.

[0030] At least one pivot position can correspond to a shallow water position of the drive unit connected to the swing unit. Optionally, the swing unit can be positioned in two different or multiple shallow water positions, or optionally, a plurality of shallow water positions can be provided.

[0031] A "shallow water position" corresponds to an operating position of the outboard drive, or more precisely, the outboard motor, in which the rocker unit is pivoted upwards, i.e., toward the stern, relative to the trim position. This reduces the draft of the outboard drive, as the propeller unit, located on the underside of the shaft unit, is less immersed in the water. Accordingly, the boat with an outboard drive positioned in a shallow water position can be operated in shallower waters than in the trim position without the outboard drive colliding with underwater objects, such as the waterbed and / or rocks, tree stumps, or other obstacles.

[0032] The shallow water position can be specified with respect to a designated trim position, for example a predetermined lowest trim position of a plurality of predeterminable trim positions, for example via the angle around the transverse axis at which the swing unit is pivoted relative to its orientation in the designated trim position in the shallow water position.

[0033] A shallow water position therefore corresponds to a position between the trim position and the tilt position, in which the propeller of the propeller unit is still under water, so that propulsion of the boat can be provided via it.

[0034] It has proven advantageous to provide a plurality of different shallow water positions in which the swing unit can be positioned relative to the fastening unit.

[0035] Example pivot angles of the shallow water position(s) at which the swing arm unit is pivoted about the transverse axis to the intended trim position can, for example, be in a range of greater than 0°, optionally greater than or equal to 5°, 10°, 15°, 20° or 25° and / or less than 90°, optionally less than or equal to 80°, 75°, 70°, 60°, 50°, or 45°. For example, a shallow water position can have a pivot angle of 20°, 30°, 40°, or 45° relative to the trim position. The maximum possible angle of the shallow water position depends on the shape of the outboard drive, in particular the length of the shaft unit and the size of the propeller unit. In the shallow water position, the propeller unit is positioned underwater in order to generate propulsion.

[0036] According to an advantageous embodiment, the fastening device can be designed such that the swing unit can be positioned relative to the fastening unit selectively in the trim position, at least one tilt position and at least one shallow water position.

[0037] According to one embodiment, the lever unit can be switched to a locking position, in which the lever unit fixes the swing unit relative to the fastening unit to prevent pivoting. For example, in the locking position, the lever unit can fix the swing unit in the trim position.

[0038] For example, the lever unit, in the locked position, can fix the swing arm unit to a trim bolt located on the mounting unit. The lever unit can optionally include a locking stop that engages the trim bolt on the bow side when in the locked position.

[0039] Alternatively or additionally, the lever unit can be switched to an anti-run position, in which the lever unit is configured to enable the swing arm unit to pivot in the stern direction. Optionally, the lever unit can be disengaged from the trim bolt on the bow side of the trim bolt in the anti-run position, and the locking stop can optionally be disengaged from the trim bolt in the anti-run position.

[0040] Advantageously, the lever unit can be selectively switched to the locking position and the anti-collision position when the swing arm unit is in the trim position. In the trim position, it is then possible to switch between a locked state of the swing arm unit relative to the fastening unit and an anti-collision state of the swing arm unit, in which the swing arm unit can pivot rearward and upward toward the rear, by switching the lever unit either to the locking position or to the anti-collision position.

[0041] In the context of the present disclosure, a run-up protection device is understood to mean a functionality that is suitable for protecting an outboard motor from damage or minimizing damage when the propeller unit in an operating position collides or threatens to collide with an underwater obstacle, for example rocks or the bottom of the body of water, during a relative movement of the boat to the surrounding water.

[0042] More specifically, a passive run-up protection device is understood here to mean that in the event of a collision between the propeller unit and / or the shaft unit supporting it and an underwater obstacle, the force exerted by the collision on the propeller unit and / or shaft unit is used as a force vector, which acts as a leverage force via the shaft unit and the swing arm unit connected to it and thus generates a pivoting moment to pivot the outboard motor about the transverse axis. This allows the momentum of the collision to be converted into a pivoting movement of the propeller unit, the shaft unit, and the swing arm unit, thus preventing or reducing potential damage to the outboard motor. In other words, the outboard motor can yield to the collision momentum with the aid of the device by converting the energy of the collision momentum into the previously described pivoting moment about the transverse axis.

[0043] According to one embodiment, the lever unit can comprise a locking element. For example, in the shallow water position, the lever unit can engage with the locking element in a shallow water locking element receptacle arranged on the fastening unit. If multiple shallow water positions are provided, the fastening unit optionally comprises a shallow water locking element receptacle for each of the shallow water positions.

[0044] The shallow-water locking element mount can optionally be configured such that, in a properly mounted state in which the outboard drive is attached to the boat by means of the mounting device, the swing arm unit can pivot sternward if a resulting pivoting moment acting on the swing arm unit exceeds a predetermined threshold. Optionally, the shallow-water locking element mount comprises a ramp inclined toward the stern direction, oriented at a predetermined angle relative to the circumferential direction of the transverse axis to the tangential of the circumferential direction.

[0045] Alternatively or additionally, the lever unit can engage with the locking element in a tilt locking element receptacle located on the mounting unit in the tilt position. If multiple tilt positions are provided, the mounting unit optionally includes a tilt locking element receptacle for each of the tilt positions.

[0046] According to one embodiment, the lever unit can comprise two lever members, wherein a first lever member is pivotably arranged on one side of the rocker unit and a second lever member is pivotably arranged on the other side of the first lever member on the first lever member and the second lever member is guided at a distance from the pivotable connection to the first lever member via a slotted guide on the rocker unit.

[0047] According to one embodiment, the lever unit can be locked in the anti-collision position, wherein the link guide of the lever unit optionally comprises a locking receptacle for receiving a guide element guided in the link guide, wherein the lever unit is optionally locked in the anti-collision position when the guide element is received in the locking receptacle. Advantageously, the locking receptacle is arranged at a lower end of the link guide.

[0048] According to one embodiment, the lever unit can comprise a pretensioning mechanism for pretensioning, for example spring-loading, the lever unit in a predetermined direction. Optionally, the pretensioning mechanism pretensions the lever unit towards at least one predetermined position, for example towards or into the locking position, anti-collision position and / or shallow water position. The pretensioning mechanism can comprise a spring element, for example a spiral spring, which is arranged, for example, on the pivotable mounting of the first lever member opposite the rocker unit. The spring element can apply a pretensioning force or a pretensioning moment to the first lever member, such that the first lever member pretensions the second lever member in the direction predetermined by the pretension.

[0049] The fastening device may further be configured according to one or more of the other aspects described in this disclosure.

[0050] The shaft unit can be part of a drive unit. It can comprise a shaft and a shaft head. Furthermore, a propeller unit can be arranged on the shaft, which can also be considered part of the drive unit.

[0051] The above task will according to a second aspect by an outboard drive for a boat having the features of claim 4. Advantageous further developments emerge from the subclaims, the description and the figures.

[0052] Accordingly, an outboard drive for a boat is proposed, comprising a fastening device for fastening the outboard drive to a boat, and a drive unit which is arranged on the fastening device so as to be rotatable about a steering angle rotation axis.

[0053] The fastening device may be that described in the first aspect, but is not limited thereto.

[0054] The mounting device and the drive unit are coupled via an adjustment part for adjusting a steering angle range of the drive unit relative to the mounting device. In other words, the outboard drive comprises an adjustment part by which a steering angle range of the drive unit relative to the mounting device can be adjusted. By switching the adjustment part, at least three different steering angle ranges of the drive unit relative to the mounting device can be set.

[0055] Accordingly, it is possible to specify the maximum possible steering angle, i.e. the deviation of the orientation of the drive unit, or more precisely the alignment of the propeller axis of the drive unit's propeller, relative to the longitudinal direction of the boat when the outboard drive is properly attached to the boat. The longitudinal direction represents a steering angle of 0°. Each deviation from the longitudinal orientation corresponds to a steering angle deflection, whereby the steering angle between the propeller axis in the longitudinal direction and the propeller axis in the deflected state is specified. A steering angle of ± 60° means, for example, that the drive unit can be rotated about the steering angle rotation axis from the 0° orientation in the longitudinal direction by 60° in a first direction, for example towards starboard, and can also be rotated by 60° in a direction opposite to the first direction, in the example towards port.

[0056] By limiting the maximum possible steering angle deflection - adapted to the respective type of boat to which the outboard drive is attached - the safety of using the boat with the outboard drive can be increased compared to conventional outboard drives. For example, by limiting the steering angle range, parts of the outboard drive, such as the propeller unit, can be prevented from colliding with other parts of the boat and thereby causing damage to the outboard drive and / or the boat. In addition, when using the outboard drive with a tiller, which can be used to set the direction and speed, it can be prevented that the tiller turns into an area that cannot be reached safely and / or is difficult for the operator in the boat to reach, for example towards the stern or even beyond the stern of the boat.

[0057] Limiting the steering angle range can also be advantageous for transport purposes of the outboard drive and / or the boat, especially if the steering angle deflection is limited to a few degrees or even locked at 0°.

[0058] A 0° limit can also be advantageous if the outboard motor is used to power a boat that already has separate steering, such as a rudder, such as a calm-weather pusher on a sailboat. In this case, the outboard motor can be locked with a steering angle of 0°, and the sailboat is steered as usual via the rudder system.

[0059] Furthermore, the outboard drive can be used on various boat types without requiring significant modifications to the boat and / or the outboard drive. For example, different steering angle ranges can be provided for different boat types. For example, a first steering angle range may be provided for small to medium-sized boats, such as aluminum boats or bass boats. It may include, but is not limited to, ± 60°. Another steering angle range could be designed for inflatable boats and include, for example, ± 30°.

[0060] The outboard drive or the adjustment part can optionally be designed such that the adjustment part can be switched between at least three predefined adjustment positions. In other words, the adjustment part can be arranged on the outboard drive such that its position relative to the fastening device and / or the drive unit can be alternatively moved into at least three predefined adjustment positions, i.e., it can be switched between them. In this case, a steering angle range of the drive unit relative to the fastening device can be predefined in each of the predefined adjustment positions. Each adjustment position therefore specifies a steering angle range of a predefined size.

[0061] Furthermore, the adjustment part can be arranged on the fastening device and / or the drive unit, for example either on the fastening device or on the drive unit, and can be moved relative to the latter in at least three adjustment positions. Optionally, the adjustment part can have a coupling section with which it can be coupled to a receiving section arranged on the corresponding other of the fastening device or the drive unit for specifying at least one of the steering angle ranges. The adjustment part can therefore be arranged on the fastening device or the drive unit in such a way that, in at least one adjustment position, it is coupled to the other of the fastening device or the drive unit on which it is not arranged, in order to enable and / or limit the intended steering angle range.

[0062] According to one embodiment, the adjustment part can be brought into a first adjustment position, in which it is coupled to a first receiving section, thereby predetermining a first steering angle range. Furthermore, the adjustment part can be brought into a second adjustment position, in which it is coupled to a second receiving section, thereby predetermining a second steering angle range different from the first steering angle range. Furthermore, the adjustment part can be brought into a further, for example third, adjustment position, in which it is coupled to a third receiving section, thereby predetermining a third steering angle range.The adjusting part can also be designed to be able to be brought into a release adjustment position in which the adjusting part does not limit the steering angle of the drive unit relative to the fastening device, thus releasing the rotation of the drive unit relative to the fastening device, thus enabling a rotation of 360°.

[0063] It has proven advantageous if one of the steering angle ranges has a rotation angle of 0°. Alternatively or additionally, at least one of the steering angle ranges can have a predetermined rotation angle of greater than 0° and less than ± 360°, optionally less than or equal to ± 270°, further optionally less than or equal to ± 180°, for example, ± 30°, ± 45°, or ± 60°. One of the steering angle ranges can also correspond to a free rotation of the drive unit relative to the fastening device.

[0064] The above task will according to a third aspectby an outboard drive for a boat having the features of claim 9. Advantageous further developments emerge from the subclaims, the description and the figures.

[0065] Accordingly, an outboard drive for a boat is proposed, comprising a fastening device for fastening the outboard drive to a boat, and a drive unit which is arranged on the fastening device so as to be rotatable about a steering angle rotation axis.

[0066] The fastening device may be that described in the first aspect and / or the second aspect, but is not limited thereto. The outboard drive may further be configured according to one or more of the other aspects described in this disclosure.

[0067] According to this aspect, the outboard drive can be converted between a tiller steering mode and a remote control steering mode.

[0068] More specifically, the outboard drive can be designed such that the drive unit can be converted between the tiller steering mode and the remote control steering mode, or the drive unit and the fastening device can be converted between the tiller steering mode and the remote control steering mode.

[0069] In tiller steering mode, or synonymously in the tiller steering configuration, a tiller is attached to the drive unit. In this configuration, the control commands—i.e., the steering angle and, optionally, the gear—are given by an operator via the tiller.

[0070] In remote-control steering mode, or synonymously in the remote-control steering configuration, the outboard drive is designed such that the steering commands—i.e., the steering angle and, optionally, the gear setting—are given from a location in the boat other than the outboard drive, i.e., away from the outboard drive, and not via the tiller. The steering commands can be given, for example, via a steering wheel connected to the drive unit. The gear setting can be given to the outboard drive, or more precisely, to the drive unit, via a gear setting device connected to the drive unit, which is located, for example, next to the steering wheel in the boat.

[0071] According to one embodiment, the drive unit may comprise a shaft rotatable relative to the fastening device about the steering angle rotation axis, wherein in the tiller steering mode a tiller is attached to a shaft head of the shaft.

[0072] Alternatively or additionally, a control flange can be attached to the shaft head in remote control steering mode.

[0073] In tiller steering mode, a tiller can be mounted on the drive unit, and in remote-control steering mode, the steering flange can be mounted in a tiller mount on the shaft head instead of the tiller. To convert from tiller steering mode to remote-control steering mode, the tiller can be removed and the steering flange installed instead.

[0074] Alternatively, the steering flange can be permanently mounted on the drive unit. In tiller steering mode, it is then advantageously decoupled from a remote control device, so that no control commands can be transmitted to the drive unit via the steering flange. In remote control steering mode, the steering flange is then connected to at least one remote control device, for example, a steering wheel located elsewhere in the boat, so that control commands can be transmitted to the drive unit via the steering flange.

[0075] It is also possible to permanently mount the tiller on the drive unit. In this case, conversion is simply accomplished by coupling or decoupling the control flange, as described above.

[0076] According to one embodiment, the control flange may comprise a connection for connecting to a steering angle setting unit of the outboard drive, wherein optionally the steering angle setting unit comprises a steering rod connected to the control flange, which is displaceable relative to the fastening device in a transverse direction oriented perpendicular to a longitudinal direction, which in a properly fastened state in which the outboard drive is fastened to the boat by means of the fastening device corresponds to a boat longitudinal direction.

[0077] The steering rod can optionally be connected to the steering flange via a push rod. The steering rod can also be guided along the mounting bracket. This allows for easy connection to the boat's remote control system.

[0078] According to one embodiment, the fastening device can comprise a fastening unit configured to fasten the outboard drive to the boat, and a swing arm unit pivotable about a predetermined transverse axis around the fastening unit, which swing arm unit is configured to hold the drive unit, for example, as described in the first aspect. The steering rod can optionally be guided centrally to the transverse axis of the swing arm unit, optionally in at least one hollow shaft defining the transverse axis.

[0079] The fastening device may include, but is not limited to, the features of the fastening device according to the first aspect and / or the second aspect and / or the third aspect.

[0080] The above task will according to a fourth aspectby an outboard drive for a boat having the features of claim 13. Advantageous further developments emerge from the subclaims, the description and the figures.

[0081] Accordingly, an outboard drive for a boat is proposed, comprising a fastening device for fastening the outboard drive to a boat, and a drive unit comprising a shaft, which is arranged on the fastening device via the shaft so as to be rotatable about a steering angle rotation axis, wherein the drive unit comprises a tiller arranged on the drive unit so as to be pivotable about a pivot axis, for example on a shaft head of the shaft.

[0082] The fastening device may be that described in the first aspect and / or second aspect and / or third aspect, but is not limited thereto. The outboard drive may further be configured according to one or more of the other aspects described in this disclosure.

[0083] The tiller is mounted on the drive unit and can be switched between a normal position, intended for operating the outboard drive, and a transport position, intended for transporting the outboard drive. In the normal position, the tiller is prevented from pivoting toward the mounting device. In the transport position, the tiller is folded toward the mounting device and held in place in such a way that rotation of the drive unit about the rotation axis is prevented.

[0084] The outboard drive can therefore be easily folded for transport. More precisely, the tiller is moved from its normal position, protruding from the rest of the outboard drive, into the transport position, as described above. In this position, the tiller rests closely against the rest of the outboard drive, particularly the shaft. The overall dimensions of the outboard drive are therefore smaller than in normal operation. This makes handling the outboard drive easier. Among other things, the tiller, which protrudes perpendicular to the shaft during normal operation, does not interfere with moving and stowing the outboard drive, and it also prevents the drive unit from accidentally folding around its axis of rotation.

[0085] Furthermore, when not in use, the outboard drive can be stowed in the folded transport position on the boat to save space.

[0086] According to one embodiment, the tiller can be folded between two mirror support arms of the fastening device in the transport position.

[0087] Furthermore, a locking part for selectively locking the tiller against pivoting towards the fastening device and releasing the tiller for a pivoting movement into the parking position can be arranged on the drive unit, for example on a shaft head of the shaft.

[0088] The locking part can optionally be designed to be interchangeable between a locking position and a release position, for example pivotable and / or displaceable, wherein in the locking position the locking part locks the tiller in the normal position against pivoting towards the fastening device, thus preventing such pivoting, and in the release position enables a pivoting movement of the tiller into the parking position.

[0089] The locking part can be pre-tensioned so that when the tiller is folded into the horizontal position, the tiller is automatically locked by the locking part.

[0090] According to one embodiment, the tiller is positioned vertically above the mounting device. Swiveling the tiller toward the mounting device would then mean swiveling downwards, i.e., toward the boat hull when the outboard drive is properly attached to the boat.

[0091] The pivoting in the direction of the fastening device can be understood as pivoting in a first pivoting direction.

[0092] According to one embodiment, the locking part can be designed such that the tiller can be pivoted from the normal position into the direction opposite to the fastening device, i.e. into a second pivoting direction opposite to the first pivoting direction, when a breakaway torque acting on the tiller is exceeded in the pivoting direction opposite to the fastening device.

[0093] To enable the tiller to be operated comfortably, for example, while standing or by operators of different heights, the pivot position of the tiller relative to the drive unit, more precisely to the shaft unit, can be adjustable. To hold the tiller in a fixed pivot position, a brake unit can be provided to brake the pivoting movement of the tiller about the pivot axis relative to the drive unit, wherein the brake unit optionally applies a predetermined clamping force to a mechanical pivot axis element defining the pivot axis, wherein the magnitude of the clamping force is optionally adjustable by an optionally externally accessible adjusting part, for example an adjusting screw.

[0094] This allows for increased driving comfort, especially when standing. It also allows the tiller to be held in the transport position. Short description of the characters

[0095] Further exemplary embodiments of the invention are explained in more detail in the following description of the figures. In the figures: Fig. 1 schematically shows a sectional view through a boat with an outboard drive; Fig. 2 schematically shows a perspective side view of a fastening device of an outboard drive according to a first embodiment; Figs. 3, 4 schematically show further perspective side views of the fastening device from Figure 2 ; Fig. 5, 6 schematic sectional views of the fastening device in a trim position; Fig. 7-9 schematic sectional views of the fastening device in shallow water positions; Fig. 10 schematically a sectional view of the fastening device in a tilt position; Fig. 11 schematically a perspective side view of an outboard drive according to a second embodiment; Fig. 12-14 schematic sectional views through the outboard drive according to Figure 11; Fig. 15 schematically shows a view from below of a shaft head of the outboard drive according to Figure 11 ; Fig. 16 schematically shows a perspective side view of an outboard drive according to a third embodiment in a tiller steering mode; Fig. 17 schematically shows the outboard drive according to Figure 16 in a remote control steering mode; Fig. 18-20 schematic perspective views of the outboard drive from Figure 17 ; Fig. 21 schematically shows a perspective side view of an outboard drive according to a fourth embodiment, the tiller of which is in a normal operating position; Fig. 22 schematically shows the outboard drive from Figure 22 , with the tiller pivoted into a transport position; Fig. 23-26 schematic detailed views of the outboard drive of the Figures 21 and 22 ; Fig. 27, 28 schematic detailed views concerning a brake unit of the tiller of the outboard drive of the Figures 21 to 26 ; and Fig. 29, 30 schematic perspective views of the outboard drive of the Figures 21 to 28 , with the tiller in various positions raised from the normal position. Detailed description of advantageous embodiments

[0096] Advantageous embodiments are described below with reference to the figures. Identical, similar, or equivalent elements in the different figures are provided with identical reference numerals, and a repeated description of these elements is partially omitted to avoid redundancies.

[0097] In Figure 1is a schematic sectional view through a boat 1 perpendicular to a transverse direction of the boat 1, which runs from starboard to port. The transverse direction is therefore perpendicular to a longitudinal direction L of the boat 1, which extends from bow to stern. When the boat 1 is at rest in the water, indicated here by the waterline W, the transverse direction and the longitudinal direction L are essentially parallel to the water surface and perpendicular to the direction of gravity g, respectively. In this disclosure, the height direction H of the boat 1 runs from the boat hull 2 ​​to the boat deck, i.e., opposite to the direction of gravity g.

[0098] An outboard drive 100-400 is arranged on the stern of a transom 3 of the boat 1, which is, for example, an outboard drive according to one of the aspects described above, a combination of at least two thereof, and / or an outboard drive 100-400 according to one of the following figures.

[0099] The outboard drive 100-400 comprises a fastening device 10, which is attached to the transom 3 via a transom mount 11. The transom mount 11 is shown here as an example in the form of clamping jaws. A drive unit 50 is mounted on the fastening device 10 so as to be rotatable about a (steering angle) rotation axis 51 relative to the fastening device 10. In this position of the outboard drive 100-400, the rotation axis 51 is oriented in the vertical direction H, but it is not limited thereto.

[0100] The drive unit 50 comprises a shaft unit 60, which has a shaft 61 and a shaft head 62. A propeller unit 52 is arranged opposite the shaft head 62, i.e., on the underside of the shaft 61. The propeller unit 52 can comprise a motor (not shown) connected to the propeller 54 of the propeller unit 52, which propeller can rotate about a propeller axis 55. Alternatively, the motor can be arranged, for example, on the shaft head 62 and connected to the propeller 54 via a power transmission unit running in the shaft 61, for example, a chain or belt drive and / or a gearbox. The outboard drive 100-400 can comprise a primary energy unit for providing the primary energy required to drive the propeller 54. This can be a battery 53, as shown here as an example, which can optionally be attached to the shaft head 62.Alternatively, the outboard drive 100-400 may also comprise a connection, for example a power cable or a fuel hose, which can be connected to a primary energy unit arranged in the boat 1.

[0101] Four exemplary embodiments 100-400 of the outboard drive are described in more detail below. For improved clarity, the described components of the outboard drive are provided with a "1" preceding the actual two-digit reference numeral with regard to a first embodiment 100, with a "2" preceding the actual two-digit reference numeral with regard to a second embodiment 200, with a "3" preceding the actual two-digit reference numeral with regard to a third embodiment 300, and with a "4" preceding the actual two-digit reference numeral with regard to a fourth embodiment 400, in order to address individual aspects of the outboard drive 100-400 and its fastening device 10 in more detail. The features described for the individual aspects can, in particular, also be combined in one outboard drive.

[0102] The Figures 2 and 3 each schematically show a perspective side view of a fastening device 110 as used in the outboard drive 100-400 according to Figure 1 It therefore represents a component of an outboard drive 100 according to an exemplary first embodiment.

[0103] The fastening device 110 is designed for fastening the outboard drive 100 to a boat 1. It comprises a fastening unit 113, which is designed to fasten the fastening device 110 and thus the outboard drive 100 to the boat 1. It further comprises a swing unit 112 pivotable about a predetermined transverse axis Q around the fastening unit 113, which is designed to swing the shaft unit 160 (see Figure 1 ) of the outboard drive 100. The shaft unit 160 is mounted on the swing arm unit 112 so as to be rotatable about the rotation axis 151.

[0104] The trim position of the outboard drive 100 is adjustable in this case in order to achieve the best possible orientation of the propeller unit 152, or more precisely the propeller axis 155, as close as possible to 0° to the water surface for different boats 1, which have different inclinations of their transom 3 relative to the horizontal. For this purpose, the fastening unit 113 comprises a plurality of trim holes 115 into which a trim bolt 116 can be inserted. The rocker unit 112 rests against the trim bolt 116 in the trim position. By selecting the trim hole 115, the position of the rocker unit 112 relative to the fastening unit 113 can be adjusted in order to achieve optimal alignment of the propeller axis 155 in the trim position.

[0105] A lever unit 104 is arranged on the swing unit 112, via which the swing unit 112 can be alternatively positioned in one of a plurality of different pivot positions relative to the fastening unit 113.

[0106] On the one hand, the swing unit 112 can be positioned in the previously described trim position via the lever unit 104, as will be explained later with regard to Figure 5 and 6 described in more detail.

[0107] Furthermore, the swing unit 112 can be positioned via the lever unit 104 relative to the fastening unit 113 in a plurality of four different shallow water positions, as shown in Figures 7 to 9 shown.

[0108] Furthermore, the swing unit 112 can be positioned via the lever unit 104 relative to the fastening unit 113 in two different tilt positions according to this exemplary embodiment, as for example from Figure 10 can be found.

[0109] To operate the lever unit 104, it comprises a manually operable handle 140.

[0110] Figure 4 shows schematically the perspective side view of the fastening device 110 from Figure 2 , wherein a rear cover of the swing arm unit 112 is hidden for a better view of the interior of the fastening device 110. Figure 5 shows a sectional view through the fastening device 110 of the Figures 1 to 4 .

[0111] According to this optional embodiment, the lever unit 104 comprises two lever members 141, 142. A first lever member 141 is pivotally mounted on one side of the rocker unit 112 via a pivotable connection 148. On the other side of the first lever member 141, the first lever member 141 is pivotally connected to a second lever member 142 via a pivotable connection 143. The second lever member 142 is guided on the rocker unit 112 via a guide slot 145 at a distance from the pivotable connection 148. In the present case, the guide slot 145 is implemented in the form of a groove in the second lever member 142 running along a predetermined guide path, in which groove a guide pin 146 arranged on the rocker unit 112 is guided.

[0112] The lever unit 104 further comprises a preloading mechanism for preloading the lever unit 104 in a predetermined direction. In this case, the preloading mechanism is formed by a preload spring 144 arranged around the pivotable connection 148, which is supported on the swing unit 112 and preloads the first lever member 141 in a rotational direction D1 toward the trim bolt 116.

[0113] In the Figures 4 and 5 The swing arm unit 112 is positioned in the trim position. In this position, the swing arm unit 112 rests on the trim bolt 116 at the rear with a support area 194. This allows the swing arm unit 112 to rest against the trim bolt 116 during forward travel, and a thrust force generated by the propeller unit 152 can be transmitted via the trim bolt 116 (and also via the transverse axis Q or the bearing forming it) into the fastening unit 113 and further to the boat 1.

[0114] In Figure 5 the lever unit 104 is switched to a locking position, in which the lever unit 104 fixes the swing unit 112 relative to the fastening unit 113 to prevent pivoting from the trim position. More precisely, the swing unit 112 is fixed to the trim bolt 116 via the lever unit 104 when the lever unit 104 is switched to the locking position. For this purpose, the lever unit 104 comprises a locking stop 195, which, in the locking position of the lever unit 104, abuts the trim bolt 116 on the bow side, i.e., essentially opposite the support area 194 of the swing unit 112. Accordingly, the swing unit 112 can neither swing in the first pivoting direction S1, i.e., in the bow direction, nor against it, i.e., in the stern direction. In this position, forward travel and reverse travel can therefore be provided.

[0115] By means of the preload spring 144, the lever unit 104 is in the Figure 5 shown position. The guide pin 146 is positioned approximately centrally in the slotted guide 145.

[0116] In the Figure 6 In the sectional view of the fastening device 110 shown, the lever unit 104 is switched to an anti-run position, in which the lever unit 104 is configured to enable pivoting of the swing arm unit 112 in the stern direction. For this purpose, the lever unit 104, or more precisely the locking stop 195, is disengaged from the trim bolt 116 in the anti-run position on the bow side of the trim bolt 116. The swing arm unit 112 is therefore not prevented by the lever unit 104 from pivoting in the second pivot direction S2, i.e., in the stern direction.

[0117] To permanently provide the collision protection, the lever unit 104 can be locked in the collision protection position. For this purpose, a locking receptacle 147 is arranged at the lower end of the link guide 145 for receiving the guide element 146 guided in the link guide 145. When the guide element 146 is received in the locking receptacle 147, the lever unit 104 is locked in the collision protection position. The preload spring 144 preloads the lever unit 104 into the collision protection position.

[0118] In the trim position, the lever unit 104 can therefore be switched to the locking position, in which the swing unit 112 is fixed to the trim bolt 116, i.e. in the trim position, so that the boat can be driven forward and backward.

[0119] In the trim position, the lever unit 104 can alternatively be switched to the anti-running position, in which the swing unit 112 is supported on the trim bolt in the first pivoting direction S1, and the swing unit 112 can pivot in the second pivoting direction S2, since the lever unit is not engaged with the trim bolt 116 on the bow direction side. This allows forward travel and anti-running protection to be provided.

[0120] As can be seen from the Figures 4 to 10 As can be seen, the fastening unit 113 comprises a plurality of shallow water locking element receptacles 118 and a plurality of tilt locking element receptacles 117 arranged at a distance from one another.

[0121] Each shallow water locking element receptacle 118 specifies a shallow water position of the swing arm unit 112, and each of the tilt locking element receptacles 117 specifies a tilt position, i.e., above water position, of the swing arm unit 112.

[0122] The lever unit 104 comprises at least one locking element 143, which is bolt-shaped here and also represents the bearing axis via which the first and second lever members 141, 142 are pivotably mounted relative to one another. The lever unit 104 is designed to be switched into a locking position in which it engages with the locking element 143 in one of the shallow water locking element receptacles 118 or in one of the tilt locking element receptacles.

[0123] In the Figure 7 In the sectional view shown, the lever unit 104 is switched into a locking position in which it is engaged via the locking element 143 in a shallow water locking element receptacle 118 arranged on the fastening unit 113.

[0124] The Figure 8The sectional view shown is at the level of the shallow water locking element receptacle 118, so that the engagement between the locking element 143 and the shallow water locking element receptacle 118 is visible. The locking element 143 is supported, in particular in the first pivoting direction S1, on the shallow water locking element receptacle 118. The swing arm unit 112 is in turn supported via a support section 119 on the locking element 143, so that the remaining bearings of the lever unit 104 are at least partially relieved. The force flow from the swing arm unit 112 to the fastening unit 113 thus goes at least partially directly from the swing arm unit 112 via the locking element 143 into the fastening unit 113.

[0125] The preload spring 144 preloads the lever unit 104 with its locking element 143 into the shallow water locking element receptacle 118.

[0126] The Figures 7 and 8shown position corresponds to a shallow water position of the swing unit 112, in which the rotation axis 51 is in the lowest trim position with respect to its orientation, as shown in the Figures 2 to 6 shown, is tilted by 40°.

[0127] The two below the shallow water locking element holder 118, which are in Figure 8 The shallow water locking receptacles 118 arranged above the locking element 143 provide an inclination of the swing unit 112 of 20° and 30° at the front and the shallow water locking receptacle 118 arranged above it provides an inclination of 50°, without being limited thereto.

[0128] In the Figure 9 In the sectional view of the fastening device 110 shown, the locking element 143 is engaged with the lowermost of the shallow water locking element receptacles 118, so that the swing unit 112 is positioned at an inclination of 20° to the trim position.

[0129] Figure 10shows a sectional view of the fastening device 110, in which the swing arm unit 112 is positioned in one of the two upper tilt positions. The rotation axis 151 is pivoted upwards by 90°, i.e. pivoted towards the tail direction, to the trim position of the Figures 2 to 6 before.

[0130] Analogous to the shallow water positions, the swing arm unit 112 is supported via the support section 119 on the locking pin 143 and, via this, on the tilt locking element mount 117. The lever unit 104 is in a locking position or is switched to this position. The preload spring 144 preloads the lever unit 104 into the tilt locking element mount 117.

[0131] The shallow water locking element receptacles 118 and the lower tilt locking element receptacle 117 are designed such that, in the properly fastened state in which the outboard drive 100 is fastened to the boat 1 by means of the fastening device 110, the swing unit 112 can pivot towards the stern direction, i.e. in the second pivoting direction S2, when a resulting pivoting moment Mr acting on the swing unit 112 (see Figure 7) exceeds a predetermined threshold value. This is achieved according to this exemplary embodiment in that the shallow water locking element receptacles 118 and the lower tilt locking element receptacle 117 each comprise, on the rear direction side with respect to the circumferential direction of the transverse axis Q, an inclined ramp 149 oriented at a predetermined angle to the tangential of the circumferential direction. If an external moment applied to the swing arm unit 112 in the second pivoting direction S2 exceeds the predetermined threshold value, which is composed of a moment component based on the weight of the swing arm unit 112 and a moment component based on the preload by the preload spring 144, the locking element 143 slides onto the ramp 149 in the second pivoting direction S2 via the ramp at least to the subsequent locking element receptacle 117, 118.A run-up protection device is also provided in the shallow water positions and a shock damage protection device is provided in the lower tilt position.

[0132] Figure 11 schematically shows a perspective view of an outboard drive 200 according to another embodiment.

[0133] The outboard drive 200 includes a fastening device 210, which may be, for example, the fastening device 110 according to the first embodiment described above, but is not limited thereto.

[0134] The outboard drive 200 further comprises a drive unit 250, which is arranged on the fastening device 210 so as to be rotatable about a steering angle rotation axis 251. The fastening device 210 and the drive unit 250 are designed to be coupled to one another via an adjustment part 270 for adjusting a steering angle range of the drive unit 250. By switching the adjustment part 270, at least three different steering angle ranges of the drive unit 250 can be set relative to the fastening device 210.

[0135] For this purpose, the adjustment part 270 can be changed between three predefined adjustment positions, which are shown in Figure 12 to Figure 14 which each schematically shows a sectional view through the outboard drive 200 according to Figure 11 represent.

[0136] In each of the predetermined adjustment positions of the adjustment part 270, a different steering angle range of the drive unit 250, more precisely of the shaft 261 and thus of the propeller unit 252, is specified relative to the fastening device 210.

[0137] According to this embodiment, the adjustment part 270 is arranged on the fastening device 210 and interacts with associated receiving sections 273, 274 on the shaft head 262 in two of the three previously mentioned adjustment positions. For this purpose, the adjustment part 270 comprises a coupling section 272, designed, for example, as a cylindrical pin, as in the present case, with which it can be coupled to the receiving sections 273, 274 to specify a respective steering angle range.

[0138] To specify the steering angle and the gear, the outboard motor 200 optionally includes a tiller 220, which is arranged on the shaft head 262. At the rear, the shaft head 262 optionally includes a battery holder for receiving the battery unit 253 (see Figure 1 ).

[0139] In Figure 3 the adjustment part 270 is arranged in a second (middle) adjustment position, the upper and lower adjustment positions are also marked.

[0140] The adjustment part 270 can be coupled to the first receiving section 274 in the first (upper) adjustment position, whereby a first steering angle range is predetermined.

[0141] As in the present case, the first receiving section 274 can be designed as a bore and the first steering angle range can be 0°. In other words, the first steering angle range is optionally limited to 0° here. The drive unit 250 or the shaft 261 are thus locked in a fixed position. This can represent a locking in the longitudinal direction L, as in the present case. As a result, the drive unit 250 is locked for straight-ahead travel. This position can be advantageous, for example, for transporting the boat 1 and / or the outboard drive 200. Furthermore, this position can be selected if steering movements of the boat 1 are to be specified not via the steering angle position of the drive unit 250, but via separate means, such as a rudder of the boat 1.

[0142] In Figure 13The adjustment part 270 is arranged in the second (middle) adjustment position, in which it is moved downwards relative to the upper adjustment position by a predetermined amount in the direction of the rotation axis 251, so that the adjustment part 270 is coupled to the second receiving portion 274. This predetermines a second steering angle range of the drive unit 250 relative to the fastening device 210, more precisely to the swing arm unit 212.

[0143] The steering angle range is specified here, for example, to ±60° relative to the longitudinal direction L representing straight-ahead travel. The total possible steering angle from one lateral end stop 277 to the opposite end stop 277 (see Figure 6 ) of the second receiving section 274 is therefore 120°.

[0144] In Figure 14The adjustment part 270 is arranged in a third (lower) adjustment position, in which it is moved downwards relative to the first or second adjustment position by a further predetermined amount in the direction of the rotation axis 251, so that the adjustment part 270 is not coupled to any of the receiving sections 273, 274, thereby predetermining a third steering angle range. The third adjustment position represents a release adjustment position, in which the adjustment part 270 does not limit the steering angle of the drive unit 250 relative to the fastening device 210.

[0145] In Figure 15 A view of the shaft head 262 from below, i.e. in the direction of the rotation axis 251, is shown. From this, the first steering angle circumference 275 and the second steering angle circumference 276 can be seen.

[0146] Figure 16 and Figure 17show schematic perspective views of an outboard drive 300 according to another embodiment. This essentially corresponds to the outboard drive 100, 200 according to the first and second embodiments, but is not limited thereto.

[0147] The outboard drive 300 comprises a fastening device 310 for fastening the outboard drive 300 to a boat 1, and a drive unit 350 which is arranged on the fastening device 310 so as to be rotatable about a steering angle rotation axis 251.

[0148] The 300 outboard drive is selectable between a tiller steering mode (see Figure 16 ) and a remote control steering mode (see Figure 17 ) can be converted.

[0149] In tiller steering mode, or synonymously tiller steering configuration, as shown in Figure 16As can be seen, a tiller 320 is attached to a front side of the shaft head 362, i.e., the side facing towards the bow when properly attached to the boat 1, in a tiller receptacle 321 provided on the shaft head 362 on the shaft head 362 of the shaft 361 arranged rotatably about the fastening device 310. In this configuration, the steering movements of the drive unit 350 as well as the speed, formed by the rotational speed of the propeller 354, are specified by an operator directly via the tiller 320.

[0150] The tiller 320 can, as described in more detail in the following embodiment, be arranged on the shaft head 362 so as to be pivotable about a pivot axis 322 relative to the shaft head.

[0151] In Figure 17The outboard drive 300 is shown in remote control steering mode or in the remote control steering configuration, in which a steering flange 323 is attached to the shaft head 362 instead of the tiller 320 in the tiller receptacle 321. The tiller receptacle 321 is optionally covered by a cover 324.

[0152] The control flange 323 comprises a connection 325 for connection to a steering angle setting unit 330. The steering angle setting unit 330 comprises a steering rod 331 connected to the control flange 323 via a push rod 332, which is displaceable relative to the fastening device 310 in a transverse direction Q oriented perpendicular to a longitudinal direction L, which in the properly fastened state in which the outboard drive 300 is fastened to the boat 1 by means of the fastening device 310 corresponds to the boat's longitudinal direction, wherein the steering rod 331 is optionally guided on the fastening device 310.

[0153] Analogous to the first embodiment, the fastening device 311 comprises a swing unit 312 configured to hold the drive unit 350, which is pivotable about a predetermined transverse axis Q relative to the fastening unit 312 comprising the mirror holder 311.

[0154] The steering rod 331 can, as shown here, be guided centrally to the predetermined transverse axis Q. In the present case, this is achieved by guiding the steering rod 331 in a hollow shaft 335 defining the transverse axis Q.

[0155] Figure 18 schematically shows another perspective side view of the outboard drive 300 in a partially exploded view. Figure 19 shows the drive unit 350 without the cover 324 to illustrate the fastening of the control flange 323 in the tiller holder 321.

[0156] The control flange 323 is attached to the connection 325 provided for implementing the pivot axis 322 of the tiller 320 via a fastening element 333, here optionally in the form of a screw, in the tiller receptacle 321. In addition, the control flange 323 is attached to a further connection 326 spaced from the connection 325 via a fastening element 333, here also optionally in the form of a screw, on the tiller receptacle 321 in order to be able to transmit torques.

[0157] Figure 19 shows a perspective detailed view of the shaft head 362 with pin receptacle 321, in which the control flange 323 is in the fastened state via the fastening elements 333 in the pin receptacle 321.

[0158] As from Figure 20 which shows a perspective view of the shaft head 362 from below, the cover 324 is fastened to the control flange via fastening elements 335, in this case in the form of screws.

[0159] Figure 21 and Figure 22 show schematic perspective views of an outboard drive 400 according to another embodiment. This essentially corresponds to the outboard drives 100, 200, 300 according to the previously described embodiments, but is not limited thereto.

[0160] The outboard drive 400 comprises a fastening device 410 for fastening the outboard drive to the boat 1, and a drive unit 450 comprising a shaft 461, which is arranged on the fastening device 410 so as to be rotatable about a steering angle rotation axis 451 via the shaft 461, wherein the drive unit 450 comprises a tiller 420 arranged on the drive unit 450 so as to be pivotable about a pivot axis 422, more precisely pivotable on a shaft head 462 of the shaft 461.

[0161] The tiller 420 can be switched between a normal position, or synonymously operating position, intended for operating the outboard drive 400, and a transport position, intended for transporting the outboard drive. In the normal position, the tiller 420 is secured against pivoting about the pivot axis 422 in the direction of the fastening device 410, i.e., towards the waterline W or the boat hull 2 ​​(see Figure 1). In other words, in the normal position, in which it can have a predetermined orientation, for example, a substantially horizontal orientation and / or an orientation in which the tiller 420 is substantially perpendicular to the steering angle rotation axis 451, the tiller 420 is prevented from being lowered downwards, i.e., towards the underside of the boat 1. In the transport position, the tiller 420 is folded towards the fastening device 410 and held therein in such a way that a rotational movement of the drive unit 450 about the steering angle rotation axis 541 is prevented.

[0162] In the transport position, the tiller 420 can be folded between two mirror mounting arms 414 of the fastening device 410. The width of the tiller 420 can be configured in the region of the mirror mounting arms 414 to correspond to an opening present between the mirror mounting arms 414. As a result, the mirror mounting arms 414 represent lateral stops for the tiller 420. Accordingly, the drive unit 450 cannot be rotated about the steering angle rotation axis 451, but is fixed in the predetermined position, here the zero position with a 0° rotation angle to the longitudinal direction L.

[0163] On the drive unit 450, according to this embodiment on the shaft head 462 of the shaft 461, a locking part 480 is arranged, which is designed to selectively lock the tiller 420 against pivoting towards the fastening device 410 and to release the tiller for a pivoting movement into the parking position.

[0164] Figure 23 and Figure 24show schematic detailed views of the area of ​​the outboard drive 400 in which the locking part 480 is arranged. In Figure 23 the locking part 480 is positioned in a locking position in which the locking part 480 prevents the pin 420 in the normal position from pivoting towards the fastening device 410.

[0165] In Figure 24 the locking part 480 has changed from the locking position to a release position, in which the locking part 480 no longer exerts a locking effect on the tiller 480. In the release position, a pivoting movement of the tiller 420 from the normal position to the parking position is thus possible.

[0166] In Figure 25 A simplified functional sketch of the pin 420 pivotable about the pivot axis 422 and the locking part 480 is shown schematically, in which the pin 420 is in the normal position and the locking part 480 is in the locking position.

[0167] In Figure 26 A simplified functional sketch of the pin 420 and the locking part 480 is shown schematically, in which the pin 420 is in the normal position and the locking part 480 is in the release position.

[0168] The locking part 480 is, without being limited thereto, designed as a lever that can be pivoted about a locking part pivot axis 486 between the locking position and the release position. The locking part 480 can be preloaded towards the locking position by a preload unit (not shown here), for example in the form of a spring, such as a spiral spring, compression spring, tension spring, or leaf spring, or in the form of a magnet unit. Accordingly, the locking part 480 always strives to reach the locking position and can only be moved from the locking position to the release position by overcoming the preload force provided by the preload unit. In order to change the locking part 480 from the locking position to the release position and / or from the release position to the locking position, the locking part 480 can comprise an actuating unit, for example in the form of the handle 485 shown here.

[0169] The locking part 480 includes a contact area 488 that is configured to correspond to a contact area 487 on the pin 420. In the locking position, the contact area 488 engages the contact area 487 on the pin 420 to provide the locking.

[0170] According to this embodiment, the contact area 488 on the locking part 480 is formed by a stop 482, which in the locking position abuts a stop 481, which represents the contact area 487 on the pin 420. Furthermore, the locking part 480 comprises a contact surface 484, with which it is in contact with a correspondingly formed contact surface 483 on the pin 420 in the locking position.

[0171] The locking part 480 can optionally be configured such that the tiller 420 can be pivoted from the normal position into the second pivot direction, in this case upward, when a breakaway torque acting on the tiller 480 is exceeded. This second pivot direction is directed opposite to the first pivot direction directed toward the fastening device 410. Alternatively or additionally, a braking unit can be provided for this purpose.

[0172] Figure 27 shows a schematic perspective detailed view from below of the tiller 420. Figure 28 shows schematically a sectional view of the detailed view from Figure 27. From these, it can be seen that the outboard motor 400 comprises a braking unit 490 for braking the pivoting movement of the tiller 420 about the pivot axis 422 relative to the shaft head 462. This braking unit is designed, without being limited thereto, in such a way that it applies a predetermined clamping force to the pivot axis 422, more precisely, a pivot axis element 427 that mechanically forms the geometric pivot axis 422. The magnitude of the clamping force can be adjusted by an externally accessible adjusting part, here optionally designed as an adjusting screw 491.

[0173] The brake unit 490 comprises a bearing part 492, which at least partially forms a part, here the lower half, of the bearing of the tiller 420 around the pivot axis element 427. The bearing part 492 is fastened to the tiller 420 on a first side via at least one fastening screw 493, in this case two fastening screws 493, relative to the pivot axis 422.

[0174] On the second side opposite the first side, the bearing part 492 is screwed to the pin 420 via the adjusting screw 491. By adjusting the position of the adjusting screw, the pressure or clamping force applied to the pivot axis element 427 by the bearing part 492 and the pin 420 can be changed. The pressure or clamping force causes an adhesive and frictional force between the radially inner contact surfaces of the pin 420 and the bearing part 492 on the one hand, and the radially outer contact surface of the pivot axis element 427.

[0175] The brake unit 490 therefore represents a parking brake which holds the tiller 420 in the set position by means of a clamping force, i.e. locks it, and after overcoming the adhesive force allows the tiller 420 to pivot against the friction force provided via the brake unit 490.

[0176] Figure 29 and Figure 30 each show the outboard drive 400 according to Figure 12, wherein the tiller 420 is raised from the normal position into the second pivoting direction, i.e. upwards, into various positions in which it is held, i.e. fixed, by the braking unit 490.

[0177] When the locking part 480 is positioned in the locking position, the tiller 420 can be lifted from the normal position to a predetermined maximum lifting angle, i.e. a maximum lifting position, in the second pivoting direction.

[0178] The brake unit 490 also holds the tiller 420 in the parking position via frictional force or adhesive force, thus locking it in the parking position and preventing it from unintentionally pivoting about the pivot axis 422 in the second direction, i.e. out of the intended parking position.

[0179] Where applicable, all individual features shown in the embodiments may be combined and / or exchanged without departing from the scope of the invention. List of reference symbols

[0180] 100-400 Outboard Drive 1 Boat 2 Boat Hull 3 Transom 4 Lever Unit 10 Fastening Device 11 Transom Mount 12 Swing Arm Unit 13 Fastening Unit 14 Transom Mount Arm 15 Trim Hole 16 Trim Bolt 17 Tilt Locking Element Receptacle 18 Shallow Water Locking Element Receptacle 19 Support Section 20 Tiller 21 Tiller Receptacle 22 Pivot Axle 23 Steering Flange 24 Cover 25 Connection 27 Pivot Axle 30 Steering Angle Setting Unit 31 Steering Rod 32 Push Rod 33 Fastening Element 34 Hollow Shaft 35 Fastening Element 40 Handle 41 First Lever Part 42 Second Lever Part 43 Locking Element 44 Preload Spring 45 Guide Link 46 Guide Pin 47Locking mount 48Pivoting connection 49Ramp 50Drive unit 51Rotating axis 52Propeller unit 53Battery 54Propeller 55Propeller axis 60Shaft unit 61Shaft 62Shaft head 63Battery holder 70Adjustment part 72Coupling section 73Receiving section 74Receiving section 75Steering angle range 76Steering angle range 77End stop 80Locking part 81Stop on the tiller 82Stop 83Contact surface onthe tiller 84Contact surface 85Handle 86Locking part pivot axis 87Contact area on the tiller 88Contact area 90Brake unit 91Adjusting screw 92Bearing part 93Fastening screw 94Support area 95Locking stop D1Direction of rotation gGravity direction HHeight direction LLongitudinal direction QTransverse direction S1Pivoting direction S2Second pivoting direction WWaterline

Claims

1. A fastening device (10) for fastening an outboard drive (100-400) to a boat (1), comprising a fastening unit (13) which is designed to fasten the fastening device (10) to the boat (1), and a swing unit (12) which is pivotable about a predetermined transverse axis (Q) around the fastening unit (13) and is designed to hold a shaft unit (60) of the outboard drive (100-400), characterized in that a lever unit (04) is arranged on the swing unit (12), via which the swing unit (12) can be positioned in at least three different pivoting positions relative to the fastening unit (13).

2. Fastening device (10) according to claim 1, characterized in thatat least one pivot position corresponds to a trim position of a drive unit (50) connected to the swing unit (12), and / or at least one pivot position corresponds to a tilt position of the drive unit (50) connected to the swing unit (12), and / or at least one pivot position corresponds to a shallow water position of the drive unit (50) connected to the swing unit (12), wherein optionally a plurality of shallow water positions are provided, and / or wherein the lever unit (04) can be switched into a locking position in which the lever unit (04) fixes the swing unit (12) relative to the fastening unit (13) against pivoting, optionally fixed in the trim position, wherein optionally the lever unit (04) fixes the swing unit (12) to a trim bolt (16) arranged on the fastening unit (13), wherein optionally the lever unit (04) comprises a locking stop (95),which, in the locking position, abuts a trim bolt (16) on the bow side, and / or the lever unit (04) can be switched into a run-up protection position in which the lever unit (04) is designed to release a stern-side pivoting of the swing unit (12), wherein optionally the lever unit (04) is disengaged from the trim bolt (16) in the run-up protection position on the bow side of the trim bolt (16), wherein optionally in the run-up protection position the locking stop (95) is disengaged from the trim bolt (16), and / or wherein the lever unit (04) comprises a locking element (43), wherein in the shallow water position the lever unit (04) is engaged with the locking element (43) in a shallow water locking element receptacle (18) arranged on the fastening unit (13), wherein the shallow water locking element receptacle (18) is optionally designed such that in a properly fastened state,in which the outboard drive (100-400) is fastened to the boat (1) by means of the fastening device (10), the swing unit (12) can pivot at the stern when a resulting pivoting moment (Mr) acting on the swing unit (12) exceeds a predetermined threshold value, wherein optionally the shallow water locking element receptacle (18) comprises at the stern, with respect to the circumferential direction around the transverse axis (Q), an inclined ramp (49) oriented at a predetermined angle to the tangential of the circumferential direction, and / or wherein in the tilt position the lever unit (04) is engaged with the locking element (43) in a tilt locking element receptacle (17) arranged on the fastening unit (13).

3. Fastening device (10) according to one of the preceding claims, characterized in thatthe lever unit (04) comprises two lever members (41, 42), wherein a first lever member (41) is pivotably arranged on one side of the rocker unit (12) and a second lever member (42) is pivotably arranged on the first lever member (41) on the other side of the first lever member (41) via a pivotable connection (48), and the second lever member (42) is guided on the rocker unit (12) at a distance from the pivotable connection (48) via a slotted guide (45), and / or wherein the lever unit (04) is lockable in the anti-collision position, wherein the slotted guide (45) optionally comprises a locking receptacle (47) for receiving a guide element (46) guided in the slotted guide (45), wherein the lever unit (04) is optionally locked in the anti-collision position when the guide element (46) is in the locking receptacle (47) is accommodated and / or wherein the lever unit (04) has a pretensioning mechanism for pretensioning, for example spring pretensioning,the lever unit (04) in a predetermined direction, wherein optionally the pretensioning mechanism pretensions the lever unit (04) in the direction of at least one predetermined position, for example in the locking position, run-up protection position and / or shallow water position., 4. Outboard drive (100-400) for a boat (1), comprising a fastening device (10) for fastening the outboard drive (100-400) to a boat (1), and a drive unit (50) which is arranged on the fastening device (10) so as to be rotatable about a steering angle rotation axis (51), characterized in that the fastening device (10) and the drive unit (50) are coupled via an adjusting part (70) for adjusting a steering angle range (75, 76) of the drive unit (50) relative to the fastening device (10), wherein at least three different steering angle ranges (75, 76) of the drive unit (50) relative to the fastening device (10) can be adjusted by switching the adjusting part (70).

5. Outboard drive (100-400) according to the preceding claim, characterized in that the adjusting part (70) can be changed between at least three predetermined adjusting positions, wherein in each of the predetermined adjusting positions a steering angle range (75, 76) of the drive unit (50) relative to the fastening device (10) is predetermined.

6. Outboard drive (100-400) according to the preceding claim, characterized in that the adjusting part (70) is arranged on the fastening device (10) or the drive unit (50) and optionally the adjusting part (70) has a coupling section (72) with which it can be coupled to a receiving section (73, 74) arranged on the other of the fastening device (10) and the drive unit (50) for specifying at least one steering angle circumference (75, 76).

7. Outboard drive (100-400) according to the preceding claim, characterized in thatthe adjusting part (70) can be brought into a first adjusting position in which it is coupled to a first receiving section (73), whereby a first steering angle range (75) is predetermined, and / or the adjusting part (70) can be brought into a second adjusting position in which it is coupled to a second receiving section (74), whereby a second steering angle range (76) is predetermined, and / or the adjusting part (70) can be brought into a third adjusting position in which it is coupled to a third receiving section, whereby a third steering angle range is predetermined, and / or the adjusting part (70) can be brought into a release adjusting position in which the adjusting part (70) does not limit the steering angle of the drive unit (50) relative to the fastening device (10).

8. Outboard drive (100-400) according to one of claims 4 to 7, characterized in thatone of the steering angle ranges has a 0° angle of rotation, at least one of the steering angle ranges has a predetermined angle of rotation greater than 0° and less than 360°, optionally less than or equal to 270°, further optionally less than or equal to 180°, for example 30°, 45°, or 60°, and / or one of the steering angle ranges corresponds to a free rotation of the drive unit relative to the fastening device.

9. Outboard drive (100-400) for a boat (1), comprising a fastening device (10) for fastening the outboard drive (100-400) to a boat (1), and a drive unit (50) which is arranged on the fastening device (10) so as to be rotatable about a steering angle rotation axis (51), characterized in that the outboard drive (100-400) can be converted between a tiller steering mode and a remote control steering mode.

10. Outboard drive (100-400) according to the preceding claim, characterized in thatthe drive unit (50) comprises a shaft (61) which is rotatable relative to the fastening device (10) about the steering angle rotation axis (51), wherein in the tiller steering mode a tiller (20) is attached to a shaft head (62) of the shaft (61) and / or in the remote control steering mode a control flange (23) is attached to the shaft head (62).

11. Outboard drive (100-400) according to the preceding claim, characterized in thatthe control flange (23) comprises a connection (25) for connection to a steering angle setting unit (30), wherein optionally the steering angle setting unit (30) comprises a steering rod (31) connected to the control flange (23), for example via a push rod (32), which is displaceable relative to the fastening device (10) in a transverse direction (Q) oriented perpendicular to a longitudinal direction (L), which in a properly fastened state in which the outboard drive (100-400) is fastened to the boat (1) by means of the fastening device (10) corresponds to a boat longitudinal direction (L), wherein the steering rod (31) is guided, for example, on the fastening device (10).

12. Outboard drive (100-400) according to one of claims 9 to 11, characterized in thatthe fastening device (10) comprises a fastening unit (13) which is designed to fasten the outboard drive (100-400) to the boat (1), and a swing arm unit (13) which is pivotable about a predetermined transverse axis (Q) around the fastening unit (13) and which is designed to hold the drive unit (50), wherein the steering rod (31) is guided, for example, centrally to the transverse axis (Q) of the swing arm unit (12), for example in at least one hollow shaft (35) defining the transverse axis (Q).

13. Outboard drive (100-400) for a boat (1), comprising a fastening device (10) for fastening the outboard drive (100-400) to a boat (1), and a drive unit (50) comprising a shaft (61) which is arranged on the fastening device (10) via the shaft (61) so as to be rotatable about a steering angle rotation axis (51), wherein the drive unit (50) comprises a tiller (20) arranged on the drive unit (50) so as to be pivotable about a pivot axis (22), for example on a shaft head (62) of the shaft (61), characterized in thatthe tiller (20) can be changed between a normal position provided for operating the outboard drive (100-400) and a transport position provided for transporting the outboard drive (100-400), wherein in the normal position the tiller (20) is prevented from pivoting in the direction of the fastening device (10), and in the transport position the tiller (20) is folded in the direction of the fastening device (10) and held therein in such a way that a rotational movement of the drive unit (50) about the axis of rotation (51) is prevented.

14. Outboard drive (100-400) according to the preceding claim, characterized in thatthe tiller (20) is folded between two mirror holder arms (14) of the fastening device (10) in the transport position, and / or wherein a locking part (80) for selectively locking the tiller (20) against pivoting towards the fastening device (10) and releasing the tiller (20) for a pivoting movement into the parking position is arranged on the drive unit (50), for example on a shaft head (62) of the shaft (61).

15. Outboard drive (100-400) according to claim 13 or 14, characterized in thatthe locking part (80) is interchangeable between a locking position and a release position, wherein in the locking position the locking part (80) locks the tiller (20) in the normal position against pivoting towards the fastening device (10), and in the release position enables a pivoting movement of the tiller (20) into the parking position, wherein the locking part (80) is preferably pretensioned into the normal position and / or wherein the locking part (80) is designed such that the tiller (20) can be pivoted from the normal position into the direction opposite to the fastening device (10) when a breakaway torque acting on the tiller (20) is exceeded in the pivoting direction directed against the fastening device (10), and / or wherein a braking unit (90) is provided for braking the pivoting movement of the tiller (20) about the pivot axis (22) relative to the drive unit (50),wherein the brake unit (90) optionally applies a predetermined clamping force to a mechanical pivot axis element (27) defining the pivot axis (22), wherein the magnitude of the clamping force is optionally adjustable by an optionally externally accessible adjusting part, for example an adjusting screw (91).

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