JP2012005367A - Lawn mower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lawn mower in which turf grass is hard to be jammed in a grass collection path when sucking and collecting the turf grass.SOLUTION: The device body 11 includes: a suction port 20 for sucking the turf grass; a discharge port 24 for discharging the sucked turf grass from the device body 11; a suction mechanism 22 for generating suction wind for guiding the turf grass from the suction port 20 to the discharge port 24; and a middle path member 26 for communicating the discharge port 24 with a grass collection port 42 formed in a grass collection box 41, and forming part of the grass collection path 23, 25 from the discharge port 24 to the grass collection port 42. The grass collection box 41 can be detachably attached to the middle path member 26. Further, the middle path member 26 is rotatably provided on the device body 11. Further, the effective area of the grass collection path 23 at a location to be connected with the discharge port 24 in the middle path member 26 is not changed wherever the rotation position of the middle path member 26 exists in the device body 11.

Description

  The present invention relates to a lawn mower including an apparatus main body having lawn mowing means and a grass collection box for storing the cut grass.

  Conventionally, the main body is composed of an apparatus main body portion having lawn mowing means, a handle portion that is rotatably installed with respect to the apparatus main body portion, and a grass collection box that accommodates turf grass cut by the apparatus main body portion. A lawn mower is known (for example, see Patent Document 1 below).

  In this type of lawn mower, a grass collection box is attached to a handle part located behind the apparatus main body part, and the handle part is connected to the apparatus main body part so as to be rotatable in the front-rear direction. It is configured. When mowing the lawn, the device body is moved by pushing the handle while tilting it at a desired rotation angle, and when stored, the handle is stood with respect to the device body to store it in a compact state. Can be done.

JP 2009-118823 A

  However, in this type of lawn mower, there has been a tendency to emphasize the compactness and design of the apparatus, and a configuration that hinders the workability of the lawn mower has been adopted. For example, the lawn mower described in Patent Document 1 will be described as an example (note that the names of the constituent members used in Patent Document 1 are indicated in parentheses). There is a large difference in the size of the path diameter at the connection between the discharge port (collecting port) formed at the rear and the grass collecting route located below the rotating handle (handle), A big step has occurred. Further, when the rotation position of the handle portion (handle) is changed, the effective cross-sectional area of the grass collection route is changed at the connection portion between the discharge port (the grass collection port) and the grass collection route. In particular, when the mowing operation is performed with the handle portion (handle) standing up with respect to the apparatus main body portion (main body), the grass collection route to the grass collection box becomes steep, and the connection portion Since the effective cross-sectional area of the grass collection path is very small, the mowing turf grass cannot reach the grass collection box and becomes a cause of the problem that it is clogged in the middle.

  When turf grass is clogged in the grass collection path, the cover of the apparatus main body (main body) must be removed using a tool and the clogged turf grass must be removed, resulting in deterioration of workability. In particular, turfgrass is often clogged when mowing long turf. For this reason, when mowing long turf, it was necessary to divide the turf into several times and to shorten it step by step, and workability was very poor.

  The present invention has been made in view of the above-described problems. The purpose of the present invention is to prevent turfgrass from being clogged in the grass collection path when the cut turfgrass is sucked and collected. To provide a lawn mower.

The present invention will be described below. In addition, in order to make an understanding of this invention easy, the reference number of an accompanying drawing is attached in parenthesis writing, However, This invention is not limited to the form of illustration by it.

  A lawn mower (10) according to the present invention includes a device main body (11) having lawn mowing means (13, 15, 17), and a handle that is rotatably installed with respect to the device main body (11). A lawn mower (10) having a portion (31) and a grass collection box (41) for storing turf grass cut by the device main body (11), wherein the device main body (11) A suction port (20) for sucking turf grass cut by the lawn mowing means (13, 15, 17), and a discharge port for discharging the turf grass sucked from the suction port (20) from the apparatus main body (11). (24), a suction mechanism (22) for generating suction air for guiding turfgrass from the suction port (20) to the discharge port (24), the discharge port (24) and the grass collection box (41) ) Formed in the collecting port (42), and the discharge port 24) to an intermediate path member (26) forming at least a part of the grass collection path (23, 25) from the grass collection mouth (42), the intermediate path member (26) It is provided so as to be rotatable with respect to the apparatus main body (11), and further, the intermediate path member (26) can be moved in any position relative to the apparatus main body (11). The effective area of the grass collection path (23) of the path member (26) connected to the discharge port (24) does not change.

  Here, the shape of the discharge port and the shape of the portion connected to the discharge port in the intermediate path member are viewed in a cross section in a direction perpendicular to the central axis of the rotation center of the intermediate path member In addition, it is preferable to be formed in a similar shape formed as an arc shape drawn with the rotation center as a center point.

  Moreover, it is preferable that the rotation center and the rotation center of the handle part with respect to the apparatus main body overlap each other.

  According to the present invention, it is possible to provide a lawn mower with good workability, in which the turf grass is not easily clogged in the grass collection path when the cut turf grass is sucked and collected.

1 is an external view of a lawnmower according to the present embodiment, and particularly shows a front view. 1 is an external view of a lawn mower according to the present embodiment, and particularly shows a right side view. 1 is an external view of a lawn mower according to the present embodiment, and particularly shows a left side view. It is an external view of the lawn mower according to the present embodiment, and particularly shows a top view. 1 is an external view of a lawnmower according to the present embodiment, and particularly shows a bottom view. It is a figure which shows the AA cross section in FIG. 1, and is a figure for demonstrating the internal structure which the lawn mower which concerns on this embodiment has. It is a figure which shows the BB cross section in FIG. It is a figure which shows CC cross section in FIG. It is a figure which shows the code | symbol D arrow in FIG. It is a figure which shows the EE cross section in FIG.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments for carrying out the invention will be described with reference to the drawings. The following embodiments do not limit the invention according to each claim, and all combinations of features described in the embodiments are not necessarily essential to the solution means of the invention. .

  The lawn mower according to the present embodiment will be described with reference to FIGS. 1 to 5 are external views of the lawn mower according to the present embodiment. In particular, FIG. 1 is a front view, FIG. 2 is a right side view, and FIG. 3 is a left side view. 4 shows a top view, and FIG. 5 shows a bottom view. Moreover, FIG. 6 is a figure which shows the AA cross section in FIG. 1, and is a figure for demonstrating the internal structure which the lawn mower concerning this embodiment has. Further, FIG. 7 is a view showing a BB cross section in FIG. 6, FIG. 8 is a view showing a CC cross section in FIG. 2, and FIG. 9 is a view taken along arrow D in FIG. FIG. 10 is a diagram showing an EE cross section in FIG. 9. In the following description, FIG. 1 to FIG.

  As shown in the external views of FIGS. 1 to 5, the lawn mower 10 according to the present embodiment is installed so as to be rotatable with respect to the apparatus main body 11 including the lawn mowing means and the apparatus main body 11. It has a handle part 31 and a grass collection box 41 for accommodating turf grass cut by the apparatus main body part 11.

  The lawn mowing means provided in the apparatus main body 11 is housed in the housing 12, and its configuration is illustrated in detail in FIG. That is, the lawn mowing means according to this embodiment includes a motor 13 as a drive source, a cutting blade 17 for cutting turf grass, and a power for transmitting the rotational driving force exerted from the motor 13 to the cutting blade 17. The transmission mechanism 15 is included. The cutting blade 17 of the present embodiment is configured by a combination of an upper rotary blade that is rotated by the rotational driving force of the motor 13 and a lower fixed blade that is always fixed, but in the following description. The description will be made using the word “cutting blade” that captures both members together without distinguishing between a rotary blade and a fixed blade.

  The power transmission mechanism 15 is installed in front of the intermediate shaft 14, a small pulley 13 b installed in the middle of the motor shaft 13 a of the motor 13, a rotatable intermediate shaft 14 disposed in front of the motor 13, and the intermediate shaft 14. And a final shaft 16 fixed in the rotational direction. A large pulley 14a is installed above the intermediate shaft 14, and the small pulley 13b of the motor shaft 13a and the large pulley 14a of the intermediate shaft 14 generate rotational driving force by the timing belt 18 being wound around. Connected in a state where transmission is possible.

  An intermediate gear 14 b is installed below the intermediate shaft 14, while a final gear 16 c that meshes with the intermediate gear 14 b of the intermediate shaft 14 is installed near the intermediate portion of the final shaft 16. The final gear 16c is a member installed so as to be rotatable around the axis of the final shaft 16, and the rotational driving force is transmitted to the cutting blade 17 via a transmission member 16d installed below the final gear 16c. The cutting blade 17 is driven to rotate. That is, when the motor shaft 13a is rotated by driving the motor 13, the rotational driving force is transmitted through the small pulley 13b, the timing belt 18, the large pulley 14a, the intermediate shaft 14, the intermediate gear 14b, the final gear 16c, and the transmission member 16d. Finally, it is transmitted to the cutting blade 17.

  In addition, in order to implement | achieve the height adjustment of the cutting blade 17 with respect to the ground, the final shaft 16 is comprised with a double shaft structure. That is, the final shaft 16 includes a hollow macaroni-shaped hollow cylindrical shaft body 16a disposed on the outer side, and a solid cylindrical shaft body that is vertically movable in a hollow portion of the hollow cylindrical shaft body 16a. 16b. Further, a semi-disc-shaped receiving member 16e is installed below the solid cylindrical shaft body 16b.

  The movement of the hollow cylindrical shaft body 16a within the housing 12 is restricted. On the other hand, the solid cylindrical shaft body 16b is restricted from moving in the rotational direction with respect to the hollow cylindrical shaft body 16a, while being freely movable in the vertical direction with respect to the hollow cylindrical shaft body 16a. Further, the vertical position of the cutting blade 17 is fixed. That is, while the cutting blade 17 is fixed in the vertical position, the solid cylindrical shaft body 16b and the receiving member 16e installed on the lower end thereof move in the vertical direction. At this time, since the bottom surface of the receiving member 16e is in contact with the ground, the position of the ground and the cutting blade 17 can be adjusted. As a result, the length of the turf grass to be cut can be adjusted.

  Although various configurations can be adopted for the mechanism for adjusting the vertical position of the solid cylindrical shaft body 16b, in the present embodiment, the bowl-shaped height adjustment knob 19a installed in front of the apparatus main body 11 is used. And a connecting member 19b that connects the height adjustment knob 19a and the solid cylindrical shaft body 16b to convert the rotational momentum of the height adjustment knob 19a into the vertical movement amount of the solid cylindrical shaft body 16b. Has been.

  Next, the turfgrass suction mechanism provided in the apparatus main body 11 according to the present embodiment will be described. As shown in FIG. 6, the shape of the housing 12 of the apparatus main body 11 is provided with the power transmission mechanism 15 described above with respect to the upper side. A mechanism for suction is arranged. That is, the apparatus main body 11 is provided with a suction port 20 for sucking turfgrass to the front of the apparatus main body 11 and around the position directly above the cutting blade 17. A first path 21 formed toward the rear of the apparatus main body 11 is formed behind the suction port 20, and the turf grass cut by the cutting blade 17 as a lawn mowing means is sucked from the suction port 20. After that, the first route 21 is first guided.

  Above the end position of the first path 21, a suction fan 22 is disposed as a suction mechanism installed at the shaft end of the motor shaft 13a. The suction fan 22 rotates with the rotation of the motor 13 and can generate suction air for guiding turfgrass from the suction port 20 to a discharge port 24 and a grass collection port 42 described later. A part of the suction air generated by the suction fan 22 is sent to the motor 13 serving as a heating element so that it can also function as a cooling air.

  A second path 23 for sending turf grass to the rear of the suction fan 22 is formed further rearward of the first path 21. A discharge port 24 for discharging the turf grass sucked from the suction port 20 from the housing 12 of the apparatus main body 11 is formed at the end of the second path 23.

  Further, an intermediate path member 26 that forms the third path 25 and a grass collection box 41 that is connected to the intermediate path member 26 are connected to the rear side of the discharge port 24. The third path 25 formed by the intermediate path member 26 communicates the discharge port 24 and the grass collection port 42 formed in the grass collection box 41 to form a grass collection route from the discharge port 24 to the grass collection port 42. is doing. The intermediate path member 26 and the grass collection box 41 are detachable at a position indicated by the symbol α in FIG. 6, and the grass collection box 41 is partly below the third path 25. A part of the outer peripheral surface (the part indicated by the symbol β) is used. That is, for the third path 25 as a grass collection path from the discharge port 24 to the grass collection port 42, a configuration in which the intermediate path member 26 and the grass collection box 41 are formed in cooperation is employed. About this structure, since the amount of members can be reduced compared with the case where the 3rd path | route 25 is comprised by one member, such as the intermediate path | route member 26, it is preferable at the point which can implement | achieve weight reduction and compactization.

  As mentioned above, the grass collection path | route with which the lawnmower 10 which concerns on this embodiment is provided is formed in order of the suction port 20, the 1st path | route 21, the 2nd path | route 23, the discharge port 24, and the 3rd path | route 25, and is a grass collection box. The turf grass sucked from the suction port 20 is finally sucked / recovered into the turf grass collection space 43 of the grass collection box 41. It has become.

  The apparatus main body 11 according to the present embodiment includes a pair of left and right wheels 27, 27 in addition to the configuration described above. As shown in FIG. 8, the wheel 27 is connected to the housing 12 of the apparatus main body 11 by a cantilever axle 27 a in order to secure the first path 21 and the second path 23. Smooth movement of the lawn mower 10 is realized by the action of the pair of left and right wheels 27, 27.

  A handle portion 31 is provided for the apparatus main body 11 described above. The handle portion 31 of the present embodiment employs a configuration having a pair of left and right pipe bodies 32 and 32 and a grip portion 33 that connects the pipe bodies 32 and 32 and receives a grip from an operator. Each of the pair of left and right pipe bodies 32, 32 is installed in a state of being rotatable at the rear of the apparatus main body 11, and the pipe bodies 32, 32 are configured to be stretchable in the longitudinal direction. ing. That is, each of the two pipe bodies 32 and 32 constituting the handle portion 31 according to the present embodiment has two different diameters in the shape of a hollow pipe, as shown in FIGS. 3, 9 and 10. It is configured by a combination of pipes, a large-diameter pipe is arranged on the side connected to the apparatus main body 11 and a small-diameter pipe is arranged on the side receiving the grip from the operator, and the insertion amount of the small-diameter pipe into the large-diameter pipe By adjusting the length, the length of the pipe body 32 can be adjusted. In order to fix the position of the two pipes constituting the pipe body 32, a fixing mechanism 34 is installed at a position where the large-diameter pipe and the small-diameter pipe overlap, and the fixing mechanism 34 is connected to the large-diameter pipe and the small-diameter pipe. A pair of left and right pipe bodies 32, 32 can be fixed at a desired length by applying or releasing a force for holding the two pipes at a position where the pipes overlap.

  Next, a connection portion between the discharge port 24 and the intermediate path member 26 according to the present embodiment will be described. The intermediate path member 26 according to the present embodiment is rotatably installed by a rotation shaft 35 that is installed in the apparatus main body 11 in the horizontal direction. The shape in the vicinity of the discharge port 24 and the shape of the portion connected to the discharge port 24 in the intermediate path member 26 are cross sections in the direction perpendicular to the central axis of the rotation shaft 35 that is the rotation center (that is, FIG. 6 is a similar shape formed as an arc shape drawn with the center of rotation as the center point, and is configured to be rotatable while sliding relative to each other. Yes. Therefore, no matter what the rotational position of the intermediate path member 26 is with respect to the apparatus main body 11, the effective cross-sectional area of the grass collection path at the location connected to the discharge port 24 in the intermediate path member 26 does not change. . Further, the portion where the intermediate path member 26 and the discharge port 24 are connected is similar to each other, and therefore there is no step difference as in the conventional technique. Therefore, the turfgrass sucked by the suction fan 22 which is a suction mechanism is not clogged in the grass collection path (particularly, the portion where the intermediate path member 26 and the discharge port 24 are connected).

  On the other hand, the connection of the handle portion 31 to the apparatus main body portion 11 is realized so as to be rotatable by a rotation shaft 35 installed in the horizontal direction, so that the intermediate path member 26 can be attached to and detached from the handle portion 31. It is configured.

  As described above, the intermediate path member 26 according to the present embodiment is detachably attached to the handle portion 31, and is provided to be rotatable with respect to the apparatus main body 11 by the rotation shaft 35. Since the connection of the handle portion 31 to the main body portion 11 is also realized by the rotation shaft 35, the rotation center of the handle portion 31 with respect to the device main body portion 11 and the rotation center of the intermediate path member 26 with respect to the device main body portion 11 are Superimposed. Accordingly, the intermediate path member 26 can be attached to and detached from the handle portion 31 with a simple configuration.

  In addition, what is necessary is just to comprise as follows about attachment / detachment of the intermediate path | route member 26 with respect to the handle | steering-wheel part 31. FIG. That is, above the intermediate path member 26, a locking mechanism 28 that allows the locking claw 28 b to be taken in and out by the elastic force of the spring 28 a is installed, and on the other hand, on the handle portion 31 side, this locking mechanism 28. An engagement hole 36 that can hold the locking claw 28b is formed. Therefore, when attaching the intermediate path member 26 to the handle part 31, as shown in FIG. 9, the engaging claw 28b is engaged with the engagement hole 36, and the intermediate path member 26 is detached from the handle part 31. When it is desired to rotate the apparatus main body 11 to the rear side, the engagement of the locking claw 28b with the engagement hole 36 may be released.

  The grass collection box 41 detachably installed with respect to the intermediate path member 26 described above is rotatable with respect to the apparatus main body 11 together with the intermediate path member 26. Is housed in the turfgrass collection space 43, the weight increases as the lawnmower 10 is used. Further, the grass collection box 41 has a relatively large volume for the purpose of accommodating turfgrass. Therefore, when the middle path member 26 is not attached to the handle portion 31, the handle portion 31 becomes lighter when the grass collecting box 41 is inclined rearward and downward relative to the apparatus main body portion 11, and the lawn mower 10 This improves the operability.

  Further, by releasing the attachment of the intermediate path member 26 to the handle part 31, the grass collection path (third path 25) can be gently inclined regardless of the inclination angle of the handle part 31, so that the cut turfgrass There is no clogging in the grass collection route.

  However, simply tilting the grass collection box 41 rearward and obliquely downward with respect to the apparatus main body 11 may cause the lower side of the grass collection box 41 to rub against the ground, resulting in poor operability of the lawn mower 10. It is done. Therefore, in the grass collection box 41 according to the present embodiment, the free roller 45 is installed at a location where the grass collection box 41 comes into contact with the ground when the grass collection box 41 is inclined rearward and downward with respect to the apparatus main body 11. It was. Thereby, the mobility of the grass collection box 41 in which the grass that has been cut and sucked is collected is improved.

  Further, as a function of the free roller 45, the lawn mower 10 according to the present embodiment can be self-supporting by the cooperation of the two wheels 27 and 27 and the free roller 45. Since the lawn mower according to the prior art could not stand by itself in the usage state, the configuration capable of being independent in the usage state as in this embodiment leads to a reduction in the burden on the operator, and the workability. This contributes to improved operability.

  Note that the grass collection box 41 according to the present embodiment is preferably formed of a transparent body such as a resin in order to facilitate the work of taking out the turf grass collected in the turf grass collection space 43 from the grass collection port 42. . Further, the grass collection box 41 of the present embodiment has a handle 44, which facilitates attachment / detachment to / from the intermediate path member 26 and taking out the grass collected in the grass collection space 43 from the grass collection port 42. The effects such as can be demonstrated.

  The specific configuration of the lawnmower 10 according to the present embodiment has been described above. According to the lawn mower 10 according to the present embodiment, when mowing the lawn mower, the operator presses the handle part 31 while applying a force to the handle part 31 while tilting the handle part 31 at a desired rotation angle. 11 can be moved. At this time, since the two wheels 27 are installed in the apparatus main body 11, smooth movement of the lawn mower 10 is realized.

  Further, as a possible mode of the lawn mower 10 at the time of lawn mowing, the lawn mower 10 according to the present embodiment is operated when the intermediate path member 26 and the grass collection box 41 are attached to the handle portion 31. And a case where the intermediate path member 26 and the grass collection box 41 are operated in a state of being removed from the handle portion 31 can be selected. In particular, the configuration in which the intermediate path member 26 and the grass collection box 41 are used after being removed from the latter handle portion 31 does not exist in the prior art, and the weight of the handle portion 31 operated by the operator is reduced. Therefore, the operability is improved. In addition, since the free roller 45 is installed in the grass collection box 41, even if the grass collection box 41 is inclined rearward and downward with respect to the apparatus main body 11, the free roller 45 acts. The mobility and operability of the lawn mower 10 are not hindered. Furthermore, in this case, since the two wheels 27 and 27 and the free roller 45 function, the lawnmower 10 itself can stand on its own. Further, even if the operator removes his / her hand from the handle portion 31, the lawnmower 10 of the present embodiment can stably stand on its own, so that the operability can be improved.

  The lawn mower 10 according to the present embodiment can be stored compactly by raising the handle part 31 with respect to the apparatus main body part 11 at the time of storage. There is no loss of compactness.

  Next, an operation method of the lawn mower 10 according to the present embodiment will be described.

  First, the operator connects a power cable (not shown) connected to the grip portion 33 of the handle portion 31 to a power supply source such as an outlet so that power is supplied to the lawn mower 10. Then, an operation command to the motor 13 is issued by pressing an operation switch 33 a installed in the grip portion 33. When the operation switch 33a is pressed, the motor 13 is driven. When the motor 13 is driven, the cutting blade 17 rotates through the power transmission mechanism 15 installed in the housing 12, and the turfgrass can be cut.

  Simultaneously with the rotation of the cutting blade 17, the suction fan 22 rotates to generate suction wind for guiding turf grass from the suction port 20 to the discharge port 24 and the grass collection port 42. While the turf grass is trimmed by this suction wind, the harvested turf grass is collected at the same time.

  The collected turfgrass collects in the turfgrass collection space 43 of the grass collection box 41. Since the grass collection box 41 is formed of a transparent body, the operator confirms the state of turfgrass collection by visual confirmation, and collects the grass. When the box 41 is full, the grass cutting process is stopped, the grass collecting box 41 is removed from the intermediate path member 26, and the collected turf grass is discarded.

  As mentioned above, although preferred embodiment of this invention was described, the technical scope of this invention is not limited to the range as described in the said embodiment. Various modifications or improvements can be added to the embodiment.

  For example, as a member constituting the grass collection path, the present embodiment exemplifies the configuration of the housing 12, the intermediate path member 26, and the grass collection box 41 constituting the apparatus main body 11. In particular, as for a part of the grass collection path, a configuration in which a part of the outer peripheral surface of the grass collection box 41 is used is illustrated. However, the shape of the member exemplified in this embodiment is merely an example of one form that the present invention can take. About the shape of the member which comprises the lawn mower which concerns on this invention, it is possible to employ | adopt various deformation | transformation forms within the range which exhibits the effect mentioned above.

  It is apparent from the description of the scope of claims that embodiments with such changes or improvements can be included in the technical scope of the present invention.

  DESCRIPTION OF SYMBOLS 10 Lawn mower, 11 Main part of apparatus, 12 Housing, 13 Motor, 13a Motor shaft, 13b Small pulley, 14 Intermediate shaft, 14a Large pulley, 14b Intermediate gear, 15 Power transmission mechanism, 16 Final shaft, 16a Hollow cylindrical shaft Body, 16b solid cylindrical shaft, 16c final gear, 16d transmission member, 16e receiving member, 17 cutting blade, 18 timing belt, 19a height adjustment knob, 19b connecting member, 20 suction port, 21 first path, 22 Suction fan, 23 2nd path, 24 discharge port, 25 3rd path, 26 intermediate path member, 27 wheels, 28 locking mechanism, 28a spring, 28b locking claw, 31 handle part, 32 pipe body, 33 gripping part, 33a Operation switch, 34 Fixing mechanism, 35 Rotating shaft, 36 Engagement hole, 41 Grass collecting box, 42 Mouth, 43 grass collection space, 44 possession, 45 free rollers.

Claims (3)

  A lawn mower having an apparatus main body provided with a lawn mowing means, a handle part installed rotatably with respect to the apparatus main body, and a grass collection box for storing turf grass cut by the apparatus main body. The apparatus main body includes a suction port for sucking turf grass cut by the lawn mowing means, a discharge port for discharging the turf grass sucked from the suction port from the apparatus main body, and the discharge port from the suction port. Collecting grass from the discharge port to the grass collection port by communicating a suction mechanism for generating a suction wind for guiding the turf grass to the outlet, and the discharge port and the grass collection port formed in the grass collection box An intermediate path member that forms at least a part of the path, and the intermediate path member is provided to be rotatable with respect to the apparatus main body, and the intermediate path member is disposed on the apparatus main body. What rotation with respect to Even the location, lawn mower, characterized in that the effective area of the grass collection path of a portion connected to said outlet of said intermediate path member is not changed.   2. The lawn mower according to claim 1, wherein the shape of the discharge port and the shape of the portion of the intermediate path member connected to the discharge port are perpendicular to the central axis of the rotation center of the intermediate path member. A lawnmower characterized by being formed in a similar shape formed as an arc shape drawn with the center of rotation as a center point when viewed in a cross-section in any direction.   The lawn mower according to claim 2, wherein the rotation center and the rotation center of the handle portion with respect to the apparatus main body overlap each other.

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