mower

Abstract

A mower which conveys cut lawn grass forward and comprises a plurality of wheels, a cutting blade which cuts lawn grass and includes a blade receiving section which receives the cutting blade, the blade receiving section being located behind the front wheels in a direction of travel, and a grass collection element which has an upper surface on which lawn grass cut by the cutting blade remains.

Description

Background of the invention Field of the invention

[0001] The present invention relates to a mower. Description of the state of the art

[0002] In recent years, efforts to achieve a low-carbon or decarbonized society have become more active, and research and development into electrification technology has also been carried out for lawnmowers in order to reduce CO2 emissions and improve energy efficiency.

[0003]

[0003] US patent application US 2020 / 0305345 A1 discloses a lawn mower which discharges cut grass to the lateral side or rear of the lawn mower. In contrast to this type of lawn mower, it has been determined that a lawn mower which discharges cut grass forward improves the ability to produce a fine cut of the grass.

[0004] However, if the cut grass is conveyed forward, it falls into the ruts left by the front wheels and remains in clumps, making it difficult to mow the lawn that has been driven over by the front wheels, resulting in uncut grass, poor finishing, and an inferior landscape after mowing.

[0005] Therefore, the present disclosure provides a lawnmower which is able to cut lawn grass more efficiently. Summary of the invention

[0006] One aspect of the present invention is a lawnmower which conveys cut lawn grass forward, and the lawnmower comprises: a plurality of wheels; at least one cutting blade which cuts lawn grass; and a blade receiving section which receives the cutting blade, wherein the blade receiving section is located behind the front wheels in a direction of travel, and comprises at least one grass collection element which has an upper surface on which lawn grass which has been cut by the cutting blade remains.

[0007] According to the present disclosure, lawn grass can be cut more efficiently. Brief description of the drawings Fig. Figure 1 is a perspective view of a lawnmower according to one embodiment; Fig. 2 is a bottom view of the lawnmower; Fig. Figure 3 is a bottom view of the blade mounting section; Fig. Figure 4 is a perspective view of a lower surface of the blade receiving section; Fig. Figure 5 is a perspective view of the lower surface of the blade receiving section; Fig. 6 is a cross-sectional view, which runs along VI-VI in Fig. 3 is recorded; Fig. 7 is a cross-sectional view, which is shown along VII-VII in Fig. 3 is recorded; Fig. Figure 8 is a bottom view of the blade mounting section; Fig. Figure 9 is a diagram showing a state in which lawn grass remains on a grass collection element; and Fig. Figure 10 is an explanatory diagram that compares and describes a case without the grass collection element and a case with the grass collection element. Detailed description of the preferred embodiment [lawn mower configuration]

[0008] The following describes a lawnmower according to one embodiment.

[0009] Fig. Figure 1 is a perspective view showing a lawnmower 10 according to one embodiment. Fig. Figure 2 is a bottom view of lawnmower 10. Fig. 2 is a grass drop area S with points shown.

[0010] The lawnmower 10 comprises a driver's seat 9, on which a driver sits, and is a ride-on lawnmower. The lawnmower 10 includes a body frame 19, two front wheels 11 and two rear wheels 13, and is provided with a blade mounting section 30 between the front wheels 11 and the rear wheels 13.

[0011] The blade mounting section 30 accommodates three cutting blades 12 for cutting lawn grass. The blade mounting section 30 is located below a step 9A of the driver's seat 9. The number of wheels 11 and 13 is not limited to four.

[0012] Fig. Figure 3 is a view of the blade receiving section 30 from below.

[0013] As in Fig. As shown in Figure 3, the three cutting blades 12 comprise, in order from the right side of the vehicle body (left side in the figure), a first cutting blade 121, a second cutting blade 122, and a third cutting blade 123. The three cutting blades 12 rotate in the same direction (counterclockwise in the figure). The number of cutting blades 12 is not limited to three. As shown in Fig. As shown in Figure 2, the two rear wheels 13 are driven by a drive motor M. The drive motor M is a first motor. A battery box 15 is arranged between the two rear wheels 13. A battery B, which serves as a power source for the drive motor M, is located in the battery box 15. The power source of the drive motor M can be an internal combustion engine.

[0014] As in Fig. 3, Fig. 4 to Fig. As shown in Figure 5, the blade receiving section 30 comprises an upper wall section 31 and a circumferential wall section 32, which hangs downwards from the outer circumferential edge of the upper wall section 31.

[0015] The circumferential wall section 32 is not limited to having a downward slope from the upper wall section 31, but can also have a downward extension from the upper wall section 31 or a downward taper from it. The circumferential wall section 32 comprises a front circumferential wall 33 and a rear circumferential wall 34. The circumferential wall section 32 is formed in an annular shape by the front circumferential wall 33 and the rear circumferential wall 34, but is not limited to this and can have an open portion of the front circumferential wall 33 or an open portion of the rear circumferential wall 34.

[0016] The rear half of the perimeter wall 34 is formed by three circular arc segments 35, 36, and 37, which extend along the paths of rotation of the three cutting blades 12. The front half of the perimeter wall 33 is designed to be spaced from the paths of rotation of the three cutting blades 12 by predetermined intervals in order to form a grass discharge area S, which is Fig. Figure 2 shows the rotation paths of the three cutting blades 12. The front half-circumferential wall 33 comprises a rectangular circumferential wall 38, which projects in a rectangular shape from the foremost end part. Providing the rectangular circumferential wall 38 enlarges the grass discharge area S and therefore allows the cut grass to be discharged further forward.

[0017] The blade mounting section 30 covers a predetermined area around the cutting blades 12 and can therefore limit the scattering area of ​​the cut grass.

[0018] The cut grass consists of pieces of lawn grass that have been cut by the cutting blades 12. The shape of the blade holder section 30 in a top or bottom view is not to be determined by the Fig. 3, Fig. 4 to Fig. The form shown in Figure 5 is limited. In the present embodiment, the upper wall section 31 and the circumferential wall section 32 are arranged as separate elements, but are not limited to this, and the upper wall section 31 and the circumferential wall section 32 can be formed integrally.

[0019] Fig. 6 is a cross-sectional view, which runs along VI-VI in Fig. 3 was recorded.

[0020] The upper wall section 31 is equipped with a first cutting motor 41, which rotates the first cutting blade 121. A second cutting motor 42, which rotates the second cutting blade 122, and a third cutting motor 43, which rotates the third cutting blade 123, are installed in the same way as the first cutting motor 41, so their description is omitted.

[0021] The first cutting motor 41 is installed such that it penetrates the upper wall section 31 and has a motor shaft 44 to which the first cutting blade 121 is attached. The upper wall section 31 is located above the cutting blades 12. The first cutting motor 41, the second cutting motor 42, and the third cutting motor 43 are secondary motors for rotating the cutting blades 12 and each has a battery B, which serves as a power source.

[0022] The number of blades comprising the cutting blades 12 can be one or more. The cutting blades 12 are provided on the lower part of the lawnmower 10. The lawnmower 10 of the present embodiment is a rotary lawnmower. Therefore, the cutting blades 12 are rotary blades. The cutting blades 12 rotate according to the drive of the cutting motors 41 to 43. As a result, the grass growing on the running surface of the lawnmower 10 is cut by the cutting blades 12. In the present embodiment, the lawnmower 10 is a rotary lawnmower, but is not limited to this.

[0023] The axis of rotation A12 of each cutting blade 12 extends in the up-down direction Y of the lawnmower 10. The up-down direction Y is a direction that intersects the front-back direction Z. The up-down direction Y and the front-back direction Z are perpendicular to each other.

[0024] The rotation direction DR of the cutting blade 12 (see Fig. 3) is determined in advance based on the direction of the cutting blade 12. Therefore, the rotation direction DR of the cutting blade 12 is not dependent on the direction of the in Fig. limited to the 3 arrows shown.

[0025] The cutting blade 12 has a wing section 12A. The wing section 12A generates an upward airflow A1 according to the rotation of the cutting blade 12.

[0026] The airflow A1 causes the top part of the grass growing on the running surface of the lawnmower 10 to stand upright. This makes it easier for the grass to come into contact with the rotating cutting blade 12. In other words, the grass is cut more easily by the cutting blade 12.

[0027] As in Fig. As shown in Figure 2, the lawnmower 10 includes a control section 20. The control section 20 is a computer that controls the lawnmower 10.

[0028] The control section 20 comprises, for example, a processor and memory. The memory stores computer-executable programs. The processor executes programs stored in the memory. The control section 20 can drive the cutting blades 12 and wheels 11 and 13 based on the programs. At least part of the control section 20 can be configured by an integrated circuit, a discrete device, or the like. [Configuration of a partition element]

[0029] Fig. 3, Fig. 4 to Fig. Figure 5 shows detailed views of the blade mounting section 30.

[0030] The three cutting blades 12 are received within the circumferential wall section 32 of the blade receiving section 30, such that they are in a line from one end 31A of the upper wall section 31 to the other end 31B thereof. The three cutting blades 12 each rotate in the direction DR (see Fig. 3) from one end 31A to the other end 31B. In Fig. 3 The three cutting blades rotate 12 counterclockwise.

[0031] A second cutting blade 122 and a third cutting blade 123 are accommodated in the side of one end 31A of the blade receiving section 30.

[0032] A dividing element 51 is provided between the two cutting blades 122 and 123, as shown in Fig. 3, Fig. 4 to Fig. 5 shown. As in Fig. As shown in Figure 4, the dividing element 51 has an upper edge part 51A, which is fixed to the lower surface of the upper wall section 31 by welding, and opposing end parts 51B, which are each fixed to the opposite wall surfaces of the circumferential wall section 32 by welding. Since the three cutting blades 12 in Fig. When rotating counterclockwise, the cut grass tends to move towards the other end 31B of the blade receiving section 30 and accumulate on the side of that end 31B. The dividing element 51 prevents the cut grass from moving towards the side of that other end 31B and prevents the grass from accumulating on that side.

[0033] A first cutting blade 121 and a second cutting blade 122 are accommodated in the side of another end 31B of the blade receiving section 30.

[0034] A dividing element between the first cutting blade 121 and the second cutting blade 122 is not provided. The blade receiving section 30 is separated by a dividing element 51, and one chamber 55 receives the third cutting blade 123, and the other chamber 56 receives the first cutting blade 121 and the second cutting blade 122 together.

[0035] Even if the cut lawn grass accumulates at the other end 31B, the absence of the dividing element between the first cutting blade 121 and the second cutting blade 122 allows the lawn grass to move to another location, thus ensuring the flowability of the lawn grass.

[0036] As in Fig. As shown in Figure 4, the dividing element 51 is designed to become progressively lower as it progresses further back in the direction of travel of the lawnmower 10 (arrow direction 100). This prevents interference between the dividing element 51 and the two cutting blades 122 and 123. The rear end of the dividing element 51 is provided with a cutout 52, which has the lowest height.

[0037] As in Fig. As shown in Figure 3, the cutout 52 causes one chamber 55 and the other chamber 56 to communicate with each other. The cutout 52 causes the two cutting blades 122 and 123, which are mounted in the side of one end 31A, to communicate with each other. The cutout 52 is located further back than one half of the dividing element 51.

[0038] This allows the two cutting blades 122 and 123 to be connected to each other, while one chamber 55 and the other chamber 56 are separated.

[0039] At least part of the cutout 52 is located in front of the center of rotation of the third cutting blade 123, which is located in the side of one end 31A, from the second and third cutting blades 122 and 123, which are included in the side of one end 31A.

[0040] The dividing element 51 is arranged near the cutting blade 122, which is located in the side of another end 31B (essentially in the center of the blade receiving section 30), comprising the second and third cutting blades 122 and 123, which are received in the side of an end 31A. A portion of the dividing element 51 is low-profile to prevent it from overlapping the path of rotation of the second cutting blade 122, which is located essentially in the center of the blade receiving section 30, as this portion would otherwise overlap the path of rotation. This prevents interference between the dividing element 51 and the second cutting blade 122.

[0041] An additional dividing element 58 is provided between the first and second cutting blades 121 and 122. The additional dividing element 58 is arranged such that it does not overlap the path of rotation of the second cutting blade 122. The rear end portion of the additional dividing element 58 is located in front of the center of rotation of at least one cutting blade (second cutting blade 122). The additional dividing element 58 suppresses the flow of grass from the second cutting blade 122 to the first cutting blade 121 and suppresses the movement of the grass to the other end 31B.

[0042] The upper edge portion of the additional partition element 58 is fixed to the lower surface of the upper wall section 31 by welding. The front end portion of the additional partition element 58 is fixed to the wall surface of the perimeter wall section 32 by welding. The front end portion of the additional partition element 58 is fixed to the wall surface of the rectangular perimeter wall 38 of the front half of the perimeter wall 33 by welding. The rear end portion of the additional partition element 58 is not fixed to the perimeter wall section 32.

[0043] The additional dividing element 58 is fixed to the side of the front half circumferential wall 33 and is located in the grass drop chamber S of the blade receiving section 30, as shown in Fig. 2 shown.

[0044] As in Fig. As shown in Figure 3, in the present embodiment a dividing element 51 is provided between the second and third cutting blades 122 and 123 on the side opposite to the direction of rotation of the cutting blades 12, and no dividing element 51 is provided between the first and second cutting blades 121 and 122 on the same side as the direction of rotation of the cutting blades 12. This can prevent the cut grass from moving to the same side as the direction of rotation of the cutting blades 12 and prevent the grass from being distributed unevenly.

[0045] A generated uneven distribution of grass places a higher load on the cutting blade 12 on the side where the increased grass arrives, but the present embodiment can prevent an increase in load.

[0046] The dividing element 51 is not located between the first and second cutting blades 121 and 122. Therefore, even if lawn grass accumulates on the same side as the direction of rotation of the cutting blades 12, the lawn grass can be moved to the opposite side, ensuring a flow capacity.

[0047] In the present embodiment, a portion of the dividing element 51 is slightly lower, as this portion would otherwise overlap the cutting blade 12. This prevents interference between the dividing element 51 and the cutting blade 12. Furthermore, the dividing element 51 is positioned closer to the second cutting blade 122 than to the third cutting blade 123. This effectively prevents movement of the grass by the third cutting blade 123.

[0048] In the present embodiment, the dividing element 51 includes a cutout 52 at the rear in the direction of travel. It is desirable that the cutout 52 be located further rearward than half of the dividing element 51 in the direction of travel. As a result, the dividing element 51 suppresses the movement of grass in the same direction as the direction of rotation of the cutting blades 12 at the front in the direction of travel and promotes the movement of grass in the opposite direction to the direction of rotation of the cutting blades 12 at the rear in the direction of travel. This can prevent grass from accumulating on the side of the cutting blades 12 facing the direction of rotation.

[0049] In the present embodiment, at least part of the cutout 52 is located in front of the center of rotation of the third cutting blade 123. As a result, the direction of rotation of the third cutting blade 123 and the flow of the lawn grass are opposite to each other, and the lawn grass can be cut efficiently.

[0050] In the present embodiment, the dividing element 51 is not provided between the first and second cutting blades 121 and 122, but an additional dividing element 58 is provided. Accordingly, the lawnmower 10 can further suppress the movement of lawn grass in the same direction as the direction of rotation of the cutting blade 12.

[0051] In the present embodiment, the rear end part of the additional dividing element 58 is located in front of the center of rotation of at least one cutting blade 12. This ensures a space without the additional dividing element 58 and allows the grass to be removed evenly. [Configuration of the grass catcher element]

[0052] As in Fig. 3, Fig. 4 to Fig. As shown in Figure 5, the blade receiving section 30 comprises two mountain-shaped grass collection elements 61. The grass collection elements 61 temporarily cause the lawn grass cut by the cutting blades 12 to remain on the mountain-shaped surface (see Figure 5). Fig. 9) The grass collection elements 61 are attached to the front half of the perimeter wall 33 of the perimeter wall section 32. The grass collection elements 61 are located behind the front wheels 11 in the direction of travel of the lawnmower 10 and are attached to the wall surface of the front half of the perimeter wall 33.

[0053] The width W of each grass collection element 61 is essentially the same as the width W of the front wheel 11, as shown in Fig. Figure 3 shows that the width W of the grass collection element 61 is desirable to be the same as, or wider than, the width W of the front wheel 11. As shown in Fig. 3, Fig. 4 to Fig. As shown in Figure 5, the mountain-shaped upper surface of the grass collection element 61 has laterally inclined surfaces 62, which are higher at the central part of the width W of the grass collection element 61 and are inclined downwards from the central part to the opposite sides. As shown in Fig. As shown in Figure 3, the grass collection element 61 comprises an end-sloping surface 63, which is inclined downwards at the rear end in the direction of travel. The two grass collection elements 61 are each paired with the first and third cutting blades 121 and 123, respectively. The distance between the path of rotation of the first cutting blade 121 and the grass collection element 61 is greater than the distance between the path of rotation of the third cutting blade 123 and the grass collection element 61. The grass collection elements 61 are located within the grass discharge chamber S.

[0054] Fig. 7 is a cross-sectional view, which is shown along VII-VII in Fig. 3 is recorded.

[0055] As in Fig. As shown in Figure 7, the lower end 64 of each grass catcher element 61 is essentially at the same height as the lower end 301 of the blade mounting section 30. Alternatively, the lower end 64 of the grass catcher element 61 is located at a slightly higher height than the lower end 301 of the blade mounting section 30. The grass catcher element 61 overlaps at least a portion of the cutting blade 12 in a side view. The lower end 64 of the grass catcher element 61 is located below the cutting blade 12.

[0056] The function of the grass collection elements 61 is described with reference to Fig. 8, Fig. 9 to Fig. 10 will be described.

[0057] Fig. Figure 8 is a bottom view of the blade mounting section 30. Fig. In section 8, the grass drop area S is shown by dots.

[0058] In the lawnmower 10, a rotation of the first to third cutting blades 121 to 123 moves the cut grass in the direction of travel 100. The first cutting blade 121 to the third cutting blade 123 cut the grass growing on the running surface of the lawnmower 10. The cut grass is moved within the blade intake section 30, as shown by arrows 101 to 103. The grass reaches the grass discharge chamber S of the blade intake section 30 and falls onto the running surface. The functions of the dividing element 51 and the additional dividing element 58 are as described above, and their description is omitted.

[0059] A first grass collection element 61A is located in the direction of rotation 101 in front of the first cutting blade 121, and a second grass collection element 61B is located in the direction of rotation 103 in front of the third cutting blade 123. The first grass collection element 61A and the second grass collection element 61B indicate the grass collection elements 61.

[0060] Fig. Figure 9 is a diagram showing a state in which lawn grass S100 remains on the grass collection element.

[0061] As in Fig. As shown in Figure 9, the grass S100 cut by the first cutting blade 121 remains temporarily on the upper surface of the first grass collection element 61A. The grass S100 cut by the third cutting blade 123 remains temporarily on the upper surface of the second grass collection element 61B. As described above, each of the upper surfaces of the first grass collection element 61A and the second grass collection element 61B includes the laterally inclined surfaces 62 and the end-sloping surface 63. When the grass remaining on each upper surface overflows, it slides off the laterally inclined surfaces 62 and the end-sloping surface 63 and falls onto the running surface.

[0062] Fig. Figure 10 is an explanatory diagram that compares and describes the case without the grass collection element 61 and the case with the grass collection element 61. Arrows 200 indicate the direction of rotation of a cutting blade 12. Fig.Figure 10 shows (A) the lawnmower 1 without the grass collection element 61 and (B) shows the lawnmower 1 with the grass collection element 61.

[0063] According to the present embodiment, the lawnmower 10 uses a front discharge system which discharges cut lawn grass S100 to the front.

[0064] As shown in (A), it has been determined that the absence of the grass collection element 61 causes an event in which the turf grass S100, which has fallen into the tracks 71 of the front wheels 11, remains in the tracks 71 without being collected when it passes the cutting blades 12. When the turf grass S100 falls into the tracks 71, it does not fall into the turf and is left in clumps. The turf grass S100 is left on the lawn that the front wheels 11 travel over, and the lawn cannot be mowed. It has been determined that this causes uncut grass, reduced mowing performance, poor finishing, and a substandard landscape after mowing.

[0065] As shown in (B), when the grass collection elements 61 are in place, they are located behind the front wheels 11 in the direction of travel 100 of the lawnmower 10 and are attached to the wall surface of the front half of the circumferential wall 33. Some of the cut grass S100 remains on the upper surfaces of the grass collection elements 61, falls outside the wheel tracks 71 of the front wheels 11 when it falls from the grass discharge chamber S, and does not remain in the wheel tracks 71.

[0066] In the present embodiment, the front-discharge lawnmower 10 comprises grass collection elements 61 behind the front wheels 11. This allows the cut grass S100 to accumulate not on top of the grass that has fallen down through the front wheels 11, but on top of the grass that is outside the wheel tracks 71 of the front wheels 11. Therefore, when the cutting blade 12 passes over it, the grass S100 can be cut again, and the grass S100 can be reliably collected.

[0067] In the present embodiment, at least part of each grass collection element 61 is located below the cutting blade 12. This prevents the cut grass S100 from being blown away below the grass collection element 61. The grass collection element 61 comprises laterally inclined surfaces 62, which are inclined in the left and right directions of the lawnmower 10, respectively. This makes it less likely that grass S100 will accumulate on the upper surface of the grass collection element 61. The lower end 64 of the grass collection element 61 is at the same height as, or above, the cutting blade 12. This prevents the lower end 64 of the grass collection element 61 from being too low and causing the grass to lie flat before being cut.

[0068] In the present embodiment, each grass collection element 61 overlaps at least a portion of the cutting blade 12 in a side view. This results in the lawnmower 10 being compact in the vertical direction.

[0069] In the present embodiment, there are two or more grass collection elements 61, and the grass collection element 61 at the front, in the direction of rotation of the cutting blades 12, is located further away from the cutting blade 12 than the grass collection element 61 at the rear, in the direction of rotation of the cutting blades 12. This can reduce the likelihood of grass clogging. Furthermore, the end surface of the grass collection element 61 adjacent to a cutting blade 12 is the end-sloping surface 63. This causes the grass discharged by the cutting blade 12 to be more likely to be scattered upwards along the grass collection element 61.

[0070] The load applied to the cutting blade 12 is the resistance force that the cutting blade 12 experiences from objects to be cut, such as lawn grass or clippings, when the object is cut. The load can increase if the amount of objects to be cut, remaining in the blade receiving section 30, increases. Reducing the load on the cutting blade 12 can reduce the energy consumption of the cutting motors 41, 42, and 43. This can reduce the energy consumption of the lawnmower 10.

[0071] The cutting motors 41, 42, and 43 are controlled by the control section 20. The control section 20 regulates the cutting motors 41, 42, and 43 to prevent excessive load on the cutting blade 12. Information indicating the load on the cutting blade 12 includes, but is not limited to, the current supplied to the cutting motors 41, 42, and 43. The current supplied to the cutting motors 41, 42, and 43 is measured by a sensor, such as a current sensor. The load on the cutting blade 12 is greater when the grass is wet than when the grass is dry.

[0072] The load applied to the cutting blades 12 increases when the grass is longer. The load applied to the cutting blades 12 also increases when the speed of the lawnmower 10 increases. Taking this into account, the control section 20 can, for example, control cutting motors 41, 42, and 43 based on information indicating at least one of the following: the moisture content of the grass, the length of the grass, the speed of the lawnmower 10, the weather, the temperature, and the humidity.

[0073] Information indicating at least one of the following parameters—the wetness of the lawn grass, the length of the lawn grass, the speed of the lawnmower 10, the weather, the temperature, and the humidity—can be entered into the control section 20 by the user, but is not limited to this. This information can be appropriately entered into the control section 20 via a communication device provided in the lawnmower 10.

[0074] The wetness and moisture of the lawn grass can be detected by a moisture sensor. The temperature can be detected by a temperature sensor. The speed of the lawnmower 10 can be detected by a speed sensor, which is provided in the lawnmower 10. The length of the lawn grass can be determined by image recognition processing using an image of the lawn grass. The image of the lawn grass can be captured, for example, by a camera integrated into the lawnmower 10.

[0075] Each of the embodiments described above is not limited to this, and various modifications are possible.

[0076] The cutting motors 41, 42, and 43 are attached to, but not limited to, the upper wall section 31 of the blade mounting section 30. A configuration is possible such that the cutting motors 41, 42, and 43 are attached to the body frame 19 of the lawnmower 10, and each motor has a motor shaft 44 that penetrates the upper wall section 31, which has a cutting blade 12 attached to it within the blade mounting section 30.

[0077] Unless otherwise specified, the directions and shapes such as horizontal and vertical in the embodiments described above include so-called equivalent areas which provide the same effects as these directions and shapes. [Configuration supported by the above embodiment]

[0078] The above embodiment supports the following configurations. (Configuration 1)

[0079] Mower which conveys cut lawn grass forwards, wherein the mower comprises: a plurality of wheels; at least one cutting blade which cuts lawn grass; and a blade receiving section which receives the cutting blade, wherein the blade receiving section is located behind the front wheels in a direction of travel, and comprises at least one grass collection element which has an upper surface on which lawn grass which has been cut by the cutting blade remains.

[0080] This causes the cut grass to fall outside the path of the front wheel, instead of being piled up on top of the grass that has fallen over due to the front wheel. Therefore, the cut grass doesn't remain in clumps, allowing the cutting blade to mow the lawn again for a more thorough cut. (Configuration 2)

[0081] Mower according to configuration 1, where the width of the grass collection element is the same as the width of the front wheel, or wider than the width of the front wheel.

[0082] This causes the cut grass to fall outside the track of the front wheel, rather than remaining in the track of the front wheel. (Configuration 3)

[0083] Mower according to configuration 2, wherein an upper surface of the grass collection element is high at a central part of the width of the grass collection element and includes lateral inclined surfaces which are inclined downwards from the central part to opposite sides.

[0084] This causes the cut grass, which remains on the upper surface of the grass catcher, to flow down the laterally inclined surfaces to fall outside the track of the front wheel and not remain in the track of the front wheel. (Configuration 4)

[0085] Mower according to one of configurations 1 to 3, wherein at least part of the grass collection element is located below the cutting blade.

[0086] This prevents the cut grass from flying under the grass collection element. (Configuration 5)

[0087] Mower according to one of configurations 1 to 4, wherein a lower end of the grass collection element is at the same height as a lower end of the blade intake section or at a higher height than the lower end of the blade intake section.

[0088] This can prevent the bottom of the grass catcher from being too low, causing the grass to lie flat before being cut. (Configuration 6)

[0089] Mower according to one of configurations 1 to 5, wherein the grass collection element overlaps at least part of the cutting blade in a side view.

[0090] This results in the mower having components that are compactly arranged in the vertical direction of the mower. (Configuration 7)

[0091] Mower according to one of configurations 1 to 6, wherein the at least one cutting blade comprises two or more cutting blades, the at least one grass collection element comprises two or more grass collection elements, each in pairs with the cutting blades, and the grass collection element has a greater distance from the cutting blade on one side of a rotation direction of the cutting blades.

[0092] This reduces the load caused by grass clogging. (Configuration 8)

[0093] Mower according to one of configurations 1 to 7, wherein the grass collection element comprises an end-sloping surface at a rear end part in the direction of travel, the end-sloping surface being inclined downwards.

[0094] This allows the grass that is removed by the cutting blade to be more likely to be scattered upwards onto the grass collection element, thus enabling the cut grass to remain on the grass collection element. (Configuration 9)

[0095] Mower according to one of configurations 1 to 8, wherein the blade receiving section comprises: an upper wall section; and a circumferential wall section, and the grass collection element is arranged on the circumferential wall section.

[0096] This allows the mower to have a firmly fixed grass catcher. (Configuration 10)

[0097] Mower according to configuration 9, wherein the circumferential wall section comprises: a front half circumferential wall; and a rear half circumferential wall, the front half circumferential wall being formed in front of the rotation paths of the cutting blades to be spaced from the rotation paths of the cutting blades by predetermined intervals to form a grass discharge space, and the grass collection element being located within the grass discharge space.

[0098] This causes the cut grass to fall from the grass collection element, through the grass discharge chamber, onto the mower's running surface. (Configuration 11)

[0099] Mower according to one of configurations 1 to 10, wherein the cutting blade includes a wing section which generates an updraft.

[0100] This allows the mower to efficiently cut the lawn grass with the cutting blade.

[0101] It goes without saying that the present invention is not limited to the disclosure described above and can assume various configurations without deviating from the core of the present invention. Reference symbol list 10 lawnmowers (mowers) 11 Front wheel 12 cutting blades 13 Rear wheel 30 blade holder section 31 upper wall section 31A an end 31B the other end 32 Perimeter wall section 33 Front half-circumferential wall 34 Posterior half-peripheral wall 38 rectangular perimeter wall 41 first cutting motor 42 second cutting motor 43 third cutting motor 51 Dividing element 51A upper edge part 51B opposite end parts 52 Excerpt 58 additional dividing element 61 Grass catcher element 62 lateral inclined surface 63 end-sloping surface 64 lower end 121 first cutting blade 122 second cutting blade 123 third cutting blade S grass drop room

[0102] A mower which conveys cut lawn grass forward and comprises a plurality of wheels, a cutting blade which cuts lawn grass and includes a blade receiving section which receives the cutting blade, the blade receiving section being located behind the front wheels in a direction of travel, and a grass collection element which has an upper surface on which lawn grass cut by the cutting blade remains.

Claims

[1] Mower (10) which conveys cut lawn grass forward, the mower comprising: a plurality of wheels (13); at least one cutting blade (12) which cuts lawn grass; and a blade receiving section (30) which receives the cutting blade, characterized by , that the blade receiving section is located behind front wheels in a direction of travel and includes at least one grass collection element (61) which has an upper surface on which lawn grass that has been cut by the cutting blade remains. [2] Mower according to claim 1, wherein the width of the grass collection element is the same as the width of the front wheel or wider than the width of the front wheel. [3] Mower according to claim 2, wherein an upper surface of the grass collection element is high at a central part of the width of the grass collection element and comprises lateral inclined surfaces which are inclined downwards from the central part to opposite sides. [4] Mower according to claim 1, wherein at least part of the grass collection element is located below the cutting blade. [5] Mower according to claim 1, wherein a lower end of the grass collection element is at the same height as a lower end of the blade receiving section or at a higher height than the lower end of the blade receiving section. [6] Mower according to claim 1, wherein the grass collection element overlaps at least part of the cutting blade in a side view. [7] Mower according to claim 1, wherein the at least one cutting blade comprises two or more cutting blades, the at least one grass collection element comprises two or more grass collection elements, each in pairs with the cutting blades, and the grass collection element has a greater distance from the cutting blade on one side of a rotation direction of the cutting blades. [8] Mower according to claim 1, wherein the grass collection element comprises an end-sloping surface at a rear end part in the direction of travel, wherein the end-sloping surface is inclined downwards. [9] Mower according to claim 1, wherein The blade mounting section includes: an upper section of wall; and a section of the perimeter wall, and the grass collection element is arranged on the peripheral wall section. [10] Mower according to claim 9, wherein The perimeter wall section includes: a front half-perimeter wall; and a rear half perimeter wall, the front half circumferential wall is designed in front of the rotation paths of the cutting blades to be spaced from the rotation paths of the cutting blades by predetermined intervals in order to form a grass discharge area, and The grass collection element is located within the grass drop chamber. [11] Mower according to claim 1, wherein the cutting blade comprises a wing section which generates an updraft.

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