Stubble cutting height adjusting mechanism of middle mower, middle mower and tractor

Abstract

The utility model relates to a middle mower stubble height adjusting mechanism, a middle mower and a tractor, the middle mower stubble height adjusting mechanism comprises a mounting plate used for being fixedly connected to the tractor, the mounting plate is rotatably connected with an adjusting seat, and the adjusting seat is fixedly connected with the middle mower stubble height adjusting mechanism. The adjusting seat is fixedly connected with an adjusting part used for being rotationally connected to a tractor, the adjusting seat is provided with at least two steps which are connected with each other and sequentially located at different heights, each step is used for being supported below a lifting mechanism, and the supporting direction is parallel to the rotating axis of the adjusting part. The middle mower can solve the technical problems that the height of an existing middle mower cannot be adjusted, and diversified requirements of users for achieving different stubble cutting heights cannot be met.

Description

Technical Field

[0001] The utility model relates to the technical field of lawn maintenance equipment, in particular to a stubble height adjustment mechanism for a center-mounted lawn mower, a center-mounted lawn mower and a tractor. Background Art

[0002] Small horsepower tractors have a good performance in garden mowing operations and are widely used. As one of the mowing equipment, the mower placed in the middle of the tractor is a non-standard interface machine. During use, the height of the mower hung on the tractor's belly by the lifting mechanism remains unchanged, which cannot meet the diverse needs of users to achieve different cutting heights. Utility Model Content

[0003] Aiming at the technical problem that the existing center-mounted lawn mower cannot adjust its height and cannot meet the diversified needs of users for achieving different cutting heights, the utility model provides a center-mounted lawn mower cutting height adjustment mechanism, a center-mounted lawn mower and a tractor.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] In the first aspect, the utility model provides a stubble height adjustment mechanism for a mid-mounted lawn mower, comprising a mounting plate for fixedly connecting to a tractor, the mounting plate being rotatably connected to an adjustment seat, the adjustment seat being fixedly connected to an adjustment member for rotatably connecting to the tractor, and the adjustment seat being provided with at least two steps which are interconnected and located at different heights in sequence, each of the steps being used to support below a lifting mechanism, and the supporting direction being parallel to the rotation axis of the adjustment member.

[0006] The beneficial effects of the utility model are as follows: when the mid-mounted lawn mower is hung on the belly of the tractor through the lifting mechanism, the adjusting piece is rotated so that the step at the highest position is supported under the lifting mechanism; when it is necessary to adjust the height of the mid-mounted lawn mower, the adjusting piece is rotated so that the step at a relatively low height position is rotated to the bottom of the lifting mechanism, so that the mid-mounted lawn mower can be lowered under the action of its gravity, and the lower height is the height difference between the front and rear steps supported under the lifting mechanism, so as to solve the technical problem that the existing mid-mounted lawn mower cannot be adjusted in height and cannot meet the diversified needs of users for achieving different cutting heights.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the adjusting member comprises an adjusting rod fixedly connected to the adjusting seat and a sealing seat rotatably connected to the adjusting rod, and the sealing seat is used for being fixedly connected to the tractor.

[0009] The beneficial effect of adopting the above further solution is that the sealing liner forms a mounting base for the adjusting rod and ensures that the adjusting rod can be rotated smoothly.

[0010] Furthermore, a knob is installed at one end of the adjusting rod away from the adjusting seat.

[0011] The beneficial effect of adopting the above further solution is that the driver in the cockpit can rotate the adjustment rod through the knob to realize the rotation of the adjustment seat.

[0012] Furthermore, seven steps are provided, and the height of each step decreases successively, the height difference between two adjacent steps is 25.4 mm, and the rotation angle between two adjacent steps relative to the rotation axis of the adjusting member is 25°.

[0013] The beneficial effect of adopting the above further solution is that by providing seven steps, when different steps support the lifting mechanism, the mid-mounted mower can be placed at different heights, thereby achieving diversified adjustment of the cutting height.

[0014] Furthermore, the adjustment seat is also provided with a limiting surface, and the limiting surface is opposite to the lowermost step.

[0015] The beneficial effect of adopting the above further solution is that when the adjusting seat rotates and the lowest step supports the lifting mechanism, the limiting surface can limit the lifting mechanism to prevent the lifting mechanism from separating from the adjusting seat.

[0016] Furthermore, a bearing is fixed inside the mounting plate, an outer ring of the bearing is fixedly connected to the mounting plate, and an inner ring is fixedly connected to the adjustment seat.

[0017] The beneficial effect of adopting the above further solution is that the rotational installation of the adjustment seat and the mounting plate can be achieved through the bearing.

[0018] Furthermore, a gear ring is fixed circumferentially on the adjustment seat, and the mounting plate is detachably connected to a positioning plate. The positioning plate is an elastic plate, and one end of the positioning plate is detachably connected to the mounting plate, and the other end is engaged with the gear ring.

[0019] The beneficial effect of adopting the above further solution is that the adjustment seat is limited by the matching method of the gear ring and the elastic positioning plate to prevent it from rotating, so that the adjustment seat forms a stable support for the lifting mechanism.

[0020] Furthermore, a V-shaped plate adapted to and entering into the tooth groove of the gear ring is provided at the other end of the positioning plate.

[0021] The beneficial effect of adopting the above further solution is that, through the two inclined surfaces of the V-shaped plate, in the process of rotating the adjusting seat by the adjusting member, the elastic force of the positioning plate can be overcome, so that the V-shaped plate can freely enter and exit the tooth groove of the gear ring.

[0022] In a second aspect, the utility model provides a mid-mounted lawn mower, comprising the aforementioned stubble height adjustment mechanism for the mid-mounted lawn mower.

[0023] In a third aspect, the utility model provides a tractor, comprising the above-mentioned mid-mounted lawn mower. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is an installation diagram of the stubble height adjustment mechanism of the mid-mounted mower of the utility model;

[0025] Figure 2 It is an axonometric diagram of the stubble height adjustment mechanism of the mid-mounted mower of the utility model;

[0026] Figure 3 It is a cross-sectional view of the stubble height adjustment mechanism of the mid-mounted lawn mower of the present utility model;

[0027] Figure 4 It is a top view of the stubble height adjustment mechanism of the mid-mounted lawn mower of the utility model.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 10. Mounting plate; 101. Fixing bolt; 102. Ear plate;

[0030] 13. Bearings;

[0031] 14. Gear ring;

[0032] 15. Positioning plate; 151. V-shaped plate;

[0033] 16. Right side plate connecting the rear axle of the gearbox; 161. Front floor; 641. Rocker arm;

[0034] 17. Adjusting seat; 171. Step; 172. Limiting surface;

[0035] 18. Adjusting member; 181. Adjusting rod; 182. Sealing seat; 183. Knob. DETAILED DESCRIPTION

[0036] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0037] It should be noted that during use, the tractor is connected and installed with the mid-mounted lawn mower through a lifting mechanism on the belly of the tractor, and the mid-mounted lawn mower is lifted to a certain height to maintain the height of the mid-mounted lawn mower and achieve the mowing effect.

[0038] The lifting mechanism is briefly described as follows: relative to the front and rear travel direction of the tractor, at the front end of the tractor, the lifting mechanism simultaneously realizes connection with the front end of the tractor and the front end of the mid-mounted mower, and realizes connection with the mid-end belly of the tractor, and the lifting mechanism is also hooked with the rear end of the mid-mounted mower, and is transmission-connected with the tractor's lifter assembly, so that the lifting mechanism is controlled by the tractor's lifter assembly to realize lifting of the mid-mounted mower and keep the mid-mounted mower at a certain height. The lifting mechanism is provided with a rocker arm 641, so as to realize transmission connection with the lifter assembly through the rocker arm 641.

[0039] It should be noted that the present invention only describes how to adjust the height of a mid-mounted lawn mower. Other operations, such as how the lifting mechanism connects the mid-mounted lawn mower and the tractor and achieves the lifting of the mid-mounted lawn mower, are not described in detail and are not the focus of protection of the present invention.

[0040] The utility model is described in detail below.

[0041] In a first aspect, the utility model provides a stubble height adjustment mechanism for a mid-mounted lawn mower, as described in detail below.

[0042] Example 1

[0043] like Figure 1 and Figure 2 A stubble height adjustment mechanism for a mid-mounted lawn mower includes a mounting plate 10 fixedly connected to a tractor, the mounting plate 10 is rotatably connected to an adjusting seat 17, the adjusting seat 17 is fixedly connected to an adjusting member 18 rotatably connected to the tractor, and the adjusting seat 17 is provided with at least two steps 171 which are interconnected and located at different heights in sequence, each step 171 is used to be supported below a lifting mechanism, and the supporting direction is parallel to the rotation axis of the adjusting member 18.

[0044] The beneficial effects of this embodiment are as follows: when the mid-mounted lawn mower is hung on the belly of the tractor through the lifting mechanism, the adjusting member 18 is rotated so that the highest step 171 is supported under the lifting mechanism; when the height of the mid-mounted lawn mower needs to be adjusted, the adjusting member 18 is rotated so that the step 171 at a relatively low height position is rotated to the bottom of the lifting mechanism, so that the mid-mounted lawn mower can be lowered under the action of its gravity, and the lower height is the height difference between the front and rear steps 171 supported under the lifting mechanism. The existing mid-mounted lawn mower cannot be adjusted in height, and cannot meet the technical problem of users' diversified needs for achieving different cutting heights.

[0045] As a further use, after the mid-mounted lawn mower is lifted by the lifting mechanism, the adjusting seat 17 can be rotated so that a step 171 of a suitable height can support the mid-mounted lawn mower, forming a second support structure in addition to the lifting mechanism. In this way, when the tractor (such as a rear three-point suspension) is used for other operations, the step 171 can form a stable support for the lifting mechanism and the mid-mounted lawn mower.

[0046] When the mid-mounted mower needs to be lowered by the lifting mechanism, the adjusting seat 17 is first rotated to cancel the support structure of the mid-mounted mower indirectly provided by the step 171. In this way, when different steps 171 form support for the lifting mechanism, the mid-mounted mower can be placed at different heights to adjust the cutting height.

[0047] As a specific solution of the above embodiment, the mounting plate 10 is fixedly connected to the right side plate 16 of the tractor's gearbox rear axle connection by means of fixing bolts 101. Specifically, the mounting plate 10 is in an "L" shape as a whole, one end of which is fixedly connected to the right side plate 16 of the tractor's gearbox rear axle connection by means of fixing bolts 101, and the other end extends transversely to realize rotational connection to the adjustment seat 17, and the adjustment seat 17 is rotationally connected to the upper side of the other end thereof.

[0048] In the embodiment of the present invention, the steps 171 may be two, three, four, five, six, seven, eight, etc. The steps 171 may be arranged in a ring shape (see Figure 4 ), can also be arranged on the same straight line, as long as it is located below the rocker arm 641 of the lifting mechanism after rotation.

[0049] The fixing bolt 101 may be a M14×35 bolt and is provided with a gasket.

[0050] Based on the above embodiment, the adjustment seat 17 is a stepped cylindrical structure, and the small diameter end is rotatably connected to the other end of the mounting plate 10, and the large diameter end is partially opened to form an upward opening structure, and a plurality of steps 171 at different heights are formed at the opening to use the steps 171 to form a support for the rocker arm 641 of the lifting mechanism, so that the rocker arm 641 cannot move downward in the vertical direction, thereby keeping the lifting mechanism stable.

[0051] The lower end of the adjusting member 18 is fixedly connected to the upper end of the large diameter end of the adjusting seat 17, and the upper end is rotatably connected to the tractor and passes through the front floor 161 of the tractor, so that the driver can apply force to the upper end of the adjusting member 18 to make the adjusting member 18 and the adjusting seat 17 rotate simultaneously.

[0052] Example 2

[0053] like Figure 1 and Figure 2On the basis of Example 1, the adjusting member 18 includes an adjusting rod 181 fixedly connected to the adjusting seat 17 and a sealing seat 182 rotatably connected to the adjusting rod 181, and the sealing seat 182 is used to be fixedly connected to the tractor.

[0054] The beneficial effect of adopting the preferred solution in the above embodiment is that the sealing liner 182 forms a mounting base for the adjustment rod 181 and ensures that the adjustment rod 181 can be rotated smoothly.

[0055] The adjusting rod 181 is vertically arranged, with its lower end fixedly connected to the adjusting seat 17 , and its upper end can be rotatably connected to the sealing liner seat 182 via a bearing (not shown in the figure).

[0056] The sealing liner 182 can be fixedly connected to the tractor front floor 161 by bolts.

[0057] Example 3

[0058] like Figure 2 and Figure 3 On the basis of embodiments 1 and 2, a knob 183 is installed at one end of the adjustment rod 181 away from the adjustment seat 17.

[0059] The beneficial effect of adopting the preferred solution in the above embodiment is that the driver in the cockpit can rotate the adjustment rod 181 through the knob 183 to achieve the rotation of the adjustment seat 17.

[0060] Wherein, knob 183 can be made of rubber. Through the transition of adjusting rod 181, knob 183 is installed on the upper side of the tractor front floor at intervals so that the driver can operate.

[0061] Based on the above embodiment, the knob 183 includes a fixing tube threadedly connected to the upper end of the adjusting rod 181 and a rubber block fixed to the fixing tube. The threaded connection between the fixing tube and the adjusting rod 181 is used to achieve a detachable connection for easy installation.

[0062] Furthermore, a limit nut is threadedly connected to the upper end of the adjusting rod 181 , and the limit nut is located at the lower side of the fixing tube, so that the length of the threaded connection between the fixing tube and the adjusting rod 181 is limited by the limit nut.

[0063] Example 4

[0064] like Figure 2 and Figure 3 On the basis of embodiments 1-3, seven steps 171 are provided, and the height of each step 171 decreases successively, the height difference between two adjacent steps 171 is 25.4 mm, and the rotation angle between two adjacent steps 171 relative to the rotation axis of the adjusting member 18 is 25°.

[0065] The beneficial effect of adopting the preferred solution in the above embodiment is that by providing seven steps 171, when different steps 171 support the lifting mechanism, the mid-mounted mower can be placed at different heights, thereby achieving diversified adjustment of the cutting height.

[0066] When the mid-mounted mower is lowered and the stubble height adjustment mechanism is engaged, the adjustment knob 183 ( Figure 2 (shown as clockwise), for every 25° rotation of the adjustment seat 17 assembly, the step 171 located below the rocker arm 641 of the lifting mechanism is lowered by 25.4 mm, and at the same time, under the gravity of the mid-mounted mower, the rocker arm 641 falls down and contacts the step 171, thereby changing the mowing height of the mid-mounted mower. When the operation is completed, the mower is lifted to the highest position through the lifting mechanism, and the adjustment knob 183 is reversely rotated to reset to support the rocker arm 641 and support it at a high position.

[0067] Through the above adjustment method, the height can be adjusted within the range of 0-150mm. There are seven gears, 1 is the lowest gear, 150 is the transport gear, the highest gear is convenient for transport, and the middle gear is 25.4mm, which is the cutting height gear. The cutting height is 25.4-127mm, which is achieved by controlling the lifting mechanism of the mid-mounted mower.

[0068] As a parallel solution of the above embodiment, the multiple steps 171 can also be arranged in a staggered manner, and different steps 171 can be supported on the lifting mechanism by rotating the corresponding angles.

[0069] Example 5

[0070] like Figure 2 and Figure 3 On the basis of embodiments 1-4, the adjustment seat 17 is further provided with a limiting surface 172 , and the limiting surface 172 is opposite to the lowest step 171 .

[0071] The beneficial effect of adopting the preferred solution in the above embodiment is that when the adjustment seat 17 rotates and the lowest step 171 supports the lifting mechanism, the limiting surface 172 can limit the lifting mechanism to prevent the lifting mechanism from separating from the adjustment seat 17.

[0072] Example 6

[0073] like Figure 2 and Figure 3 On the basis of embodiments 1-5, a bearing 13 is fixed in the mounting plate 10, the outer ring of the bearing 13 is fixedly connected to the mounting plate 10, and the inner ring is fixedly connected to the adjustment seat 17. The bearing 13 can be a deep groove ball bearing.

[0074] The beneficial effect of adopting the preferred solution in the above embodiment is that the rotational installation of the adjustment seat 17 and the mounting plate 10 is achieved through the bearing 13.

[0075] Specifically, a mounting groove for mounting the bearing 13 is formed inwardly at the other end of the mounting plate 10 , and the outer side of the small diameter end of the adjustment seat 17 is fixedly connected to the inner ring of the bearing 13 through a key connection.

[0076] Example 7

[0077] like Figure 2 and Figure 4 On the basis of embodiments 1-6, a gear ring 14 is circumferentially fixed to the adjustment seat 17, and the mounting plate 10 is detachably connected to the positioning plate 15, which is an elastic plate, and one end of which is detachably connected to the mounting plate 10, and the other end is engaged with the gear ring 14.

[0078] The beneficial effect of adopting the preferred solution in the above embodiment is that the adjustment seat 17 is limited by the cooperation of the gear ring 14 and the elastic positioning plate 15 to prevent it from rotating, so that the adjustment seat 17 forms a stable support for the lifting mechanism.

[0079] As a specific solution of the above embodiment, the toothed ring 14 is integrally formed at the lower end of the large diameter end of the adjustment seat 17 and abuts against the upper side of the other end of the mounting plate 10. The toothed ring 14 can be a complete toothed ring or an incomplete toothed ring (such as Figure 2 shown).

[0080] Based on the above embodiment, a lug plate 102 is extended from one end of the mounting plate 10, and one end of the positioning plate 15 is connected to the lug plate 102 by bolts to achieve installation. The positioning plate 15 can be made of spring steel.

[0081] Example 8

[0082] like Figure 2 and Figure 4 On the basis of Embodiments 1-7, a V-shaped plate 151 adapted to fit into the tooth groove of the gear ring 14 is provided at the other end of the positioning plate 15 .

[0083] The beneficial effect of adopting the preferred solution in the above embodiment is that, through the two inclined surfaces of the V-shaped plate 151, the elastic force of the positioning plate 15 can be overcome during the process of rotating the adjustment seat 17 through the adjustment member 18, so that the V-shaped plate 151 can freely enter and exit the tooth groove of the gear ring 14.

[0084] The V-shaped plate 151 may be integrally formed with the positioning plate 15 , or may be installed by welding or other methods.

[0085] In a second aspect, the utility model further provides a mid-mounted lawn mower, as described in detail below.

[0086] Example 9

[0087] A mid-mounted lawn mower, based on embodiments 1-8, comprises the aforementioned mid-mounted lawn mower cutting height adjustment mechanism.

[0088] The beneficial effect of adopting the preferred solution in the above embodiment is that, when using this lawn mower, the user only needs to purchase a lawn mower containing the mid-mounted lawn mower cutting height adjustment mechanism and install the mid-mounted lawn mower cutting height adjustment mechanism on his own tractor, which can reduce the cost of use.

[0089] In a second aspect, the utility model also provides a tractor, as described in detail below.

[0090] Example 10

[0091] Based on embodiments 1-9, a tractor includes the mid-mounted lawn mower.

[0092] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0093] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0094] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0095] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0096] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0097] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A stubble height adjustment mechanism for a mid-mounted lawn mower, characterized in that: The utility model comprises a mounting plate (10) for being fixedly connected to a tractor, the mounting plate (10) being rotatably connected to an adjusting seat (17), the adjusting seat (17) being fixedly connected to an adjusting member (18) for being rotatably connected to the tractor, and the adjusting seat (17) being provided with at least two steps (171) which are connected to each other and are located at different heights in sequence, each of the steps (171) being used for supporting below a lifting mechanism, and the supporting direction being parallel to the rotation axis of the adjusting member (18).

2. The stubble height adjustment mechanism for a mid-mounted lawn mower according to claim 1, characterized in that: The adjusting member (18) comprises an adjusting rod (181) fixedly connected to the adjusting seat (17) and a sealing seat (182) rotatably connected to the adjusting rod (181); the sealing seat (182) is used for being fixedly connected to a tractor.

3. A stubble height adjustment mechanism for a mid-mounted lawn mower according to claim 2, characterized in that: A knob (183) is installed at one end of the adjustment rod (181) away from the adjustment seat (17).

4. The stubble height adjustment mechanism for a mid-mounted lawn mower according to claim 1, characterized in that: Seven steps (171) are provided, and the heights of the steps (171) decrease successively. The height difference between two adjacent steps (171) is 25.4 mm, and the rotation angle between two adjacent steps (171) relative to the rotation axis of the adjusting member (18) is 25°.

5. A stubble height adjustment mechanism for a mid-mounted lawn mower according to claim 4, characterized in that: The adjustment seat (17) is also provided with a limiting surface (172), and the limiting surface (172) is opposite to the lowest step (171).

6. The stubble height adjustment mechanism for a mid-mounted lawn mower according to claim 1, characterized in that: A bearing (13) is fixed inside the mounting plate (10); the outer ring of the bearing (13) is fixedly connected to the mounting plate (10), and the inner ring is fixedly connected to the adjustment seat (17).

7. A stubble height adjustment mechanism for a mid-mounted lawn mower according to any one of claims 1 to 6, characterized in that: The adjusting seat (17) is circumferentially fixed with a toothed ring (14); the mounting plate (10) is detachably connected with a positioning plate (15); the positioning plate (15) is an elastic plate, one end of which is detachably connected to the mounting plate (10) and the other end of which is engaged with the toothed ring (14).

8. The stubble height adjustment mechanism for a mid-mounted lawn mower according to claim 7, characterized in that: The other end of the positioning plate (15) is provided with a V-shaped plate (151) adapted to and entering into the tooth groove of the gear ring (14).

9. A mid-mounted lawn mower, characterized in that: It comprises a stubble height adjustment mechanism for a mid-mounted lawn mower as described in any one of claims 1 to 8.

10. A tractor, characterized in that: It includes a mid-mounted lawn mower as claimed in claim 9.

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