JPH0620381B2 - Lawn mower with blower - Google Patents

Description

The present invention relates to a lawn mower with a blower.

[Conventional technology]

A lawn mower that transports grass clippings from a discharge port of a cutter housing accommodating a cutter blade to a rear glass bag through a shooter is well known.

Further, there is also known one in which a blower is provided in the middle of the turf conveyance path. (For example, US Pat.
2-40219).

In these things, the grass clippings sent to the discharge port of the cutter housing by the rotation of the cutter blade are sucked into the blower connected to the discharge port of the cutter housing and discharged from the discharge port. It is conveyed to the rear glass bag through the connected shooter.

[Problems to be Solved by the Invention] In the case where the blower is provided in the middle of the turf carrier path as described above, the turf is sucked into and discharged from the turf, so that the turf enters the suction port of the blower or the blower. There is a risk that the turf may be clogged and clogged, and maintenance is not easy.

The present invention has been made in view of the above points, and an object of the present invention is to provide a blower outside a turf conveyance path and send only air into the turf conveyance path to eliminate clogging of the turf of the blower.

[Means for Solving the Problems]

According to the configuration of the present invention, one end of a shooter is connected to a grass clippings outlet provided on a side portion of a cutter housing accommodating a cutter blade, and the shooter extends backward and tilts upward, and the other end of the shooter A lawn mower that is connected to a grass bag provided at a rear portion and conveys the lawn from the lawn mower discharge port to the glass bag through the shooter, outside the lawn mower conveyance path outside the cutter housing. In the lower part of the shooter is provided with a blower for communication connection,
The blower is located in front of the shooter on the side of the cutter housing on the side of the grass lawn discharge port of the cutter housing, and on the inside of the outer portion of the shooter.

[Action]

The grass cut by the cutter blade is transferred from the outlet of the cutter housing to the rear glass bag through the shooter, but the blower connected to the shooter sends the transfer air into the shooter, so the transfer of the cut grass is good. Becomes Further, since the blower is arranged outside the turf conveyance path and only air is sent to the shooter, clogging of the turf inside the blower is reduced.

〔Example〕

FIG. 1 is a plan view of a main part of a riding lawn mower, and FIG. 2 is a partial cross-sectional side view of the main part.

The riding lawn mower 1 is provided with front wheels 2 and rear wheels 3 on the left and right of the front and rear of the machine body, and the rear wheels 3 are driven and moved by an engine governed by the front part of the machine body. Reference numeral 4 denotes a seat provided at the rear of the machine body, and 5 denotes a steering handle provided at the front thereof.

Then, the cutter blade 7 in the cutter housing 6 arranged below the substantially central portion of the machine body is rotationally driven in the horizontal direction by the engine to cut grass.

A pair of cutter blades 7 are provided in the left-right direction of the machine body,
The cutter blade 7 on the right side is arranged near the rear wheel 3, and the cutter blade 7 on the left side is arranged near the front wheel 2 so that their rotation loci partially overlap each other when viewed from the front-rear direction. The cutter housing 6 that covers them includes an upper wall 6a that covers the upper portion of the cutter blade 7 and a peripheral wall 6b that hangs down from the outer periphery of the cutter blade 7 and covers the lateral portions of the cutter blade 7. The peripheral wall 6b is the left and right cutter blades 7. Connect the left and right circular arcs arranged along the rotation trajectory of and the ends of these,
It consists of a gently curved outward convex portion on the front side that extends diagonally rearward from the left side to the right side of the airframe, and a straight portion on the rear side.

A discharge port 8 is opened on the right side of the peripheral wall 6b of the cutter housing 6, and the lower end of the lower shooter 9 is connected to the discharge port 8. The lower shooter 9 is curved outward toward the rear and extends laterally upward while tilting backward. A middle shooter 10 is connected to the lower shooter 9, and an upper shooter 11 is connected to the middle shooter 10. These shooters 9, 10, 11 extend sideways to the rear of the machine body and extend rearward, so that the upper shooter 11 The rear end is inserted from the side portion of the glass bag 12 provided at the rear portion of the machine body and placed in the glass bag 12.

Also, on the right side of the cutter housing 6, the lower shooter 9
The blower 13 is provided in the front position of the. Blower 13
Is a main body portion 14 and a duct portion 15 extending rearward from the main body portion 14.
Consists of. The main body portion 14 accommodates an impeller 16 in a substantially circular case, and the impeller 16 has a plurality of blade plates 16b extending in a radially curved manner on the upper surface of a bottom plate 16a, and its rotating shaft 17 has a case. Suction port 1 provided at the center of the upper surface
8 and project upward. And the duct part 1
The discharge port at the rear end 5 is connected to the front part of the peripheral surface of the lower shooter 9.

The drive system for the cutter blade 7 and the blower 13 will be described below.

The vertical rotary shafts 19 and 20 of the pair of cutter blades 7 project from the upper wall 6a of the cutter housing 6, respectively.
Pulleys 21 and 22 are fixed to the protruding shaft portion, and a belt 25 is stretched between these pulleys 21 and 22 and a drive pulley 23 and a tension pulley 24 provided in an upper portion of the cutter housing 6. Further, another pulley 26 is provided on the shaft of the drive pulley 23, and a belt 29 is stretched between this pulley 26 and a pair of pulleys 27, 28 on the output shaft side of the engine, so that the power of the engine is reduced. Is configured to be belt-transmitted to the pulley 23, and the two cutter blades 7 rotate in the arrow direction by the belt 25.

Further, another pulley 30 is provided on the rotary shaft 19 of the cutter blade 7 on the right side.
A belt 33 is stretched between a pulley 31 fixed to a rotary shaft 17 protruding above the blower 13 and a tension pulley 32 provided above the blower 13,
The rotating shaft 17 of the blower 13 is driven by the belt 33 to rotate in the arrow direction.

Therefore, the grass is mowed by the two cutter blades 7 that rotate in the direction of the arrow. Then, in the cutter housing 6, an airflow is generated by the blades 34 formed upright on the tip of the cutter blade 7, and the airflow causes the grass clippings to be discharged from the discharge port 8 of the cutter housing 6 to the lower shooter 9. Then, the air sucked from the suction port 18 of the blower 13 is sent to the lower shooter 9, and the cut grass is carried to the rear glass bag 12 through the shooters 9, 10, 11 together with the airflow by the cutter blade 7.

In this way, the blower 13 sends only the air into the shooter, so that clogging of the grass in the blower 13 is reduced.

Further, since the blower 13 is arranged on the right side of the cutter housing 6 in the empty space on the front side of the lower shooter 9, the blower 13 can be arranged without protruding laterally of the machine body or the like.

The blower 13 and the lower shooter 9 may be formed integrally or separately. If they are configured separately, they can be attached and detached separately. For example, when the lower shooter 9 is detached and the blower 13 is detached, the blower 13 can be attached and detached easily.

〔The invention's effect〕

As described above, according to the present invention, since the blower is arranged outside the grass lawn conveyance path, clogging of the lawn inside the blower can be reduced. In addition, since the blower is provided on the side of the cutter housing, the center of gravity of the lawn mower can be lowered, stable work can be performed, and the height of the cutter housing can be adjusted from the ground. The adjustment range is not restricted by the blower. Further, since the blower is provided on the side of the cutter housing in the empty space in front of the shooter, the space can be effectively used. Also, since the blower is located inside the outer part of the shooter and does not project to the side of the machine, it is possible to reduce the bias of the load on one side as much as possible and reduce the vertical deviation of the cutter housing as much as possible. Unevenness can also be prevented.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a plan view of the main part of a riding lawn mower, and FIG. 2 is a partial sectional side view of the main part. 1 is a lawn mower, 2 is a front wheel, 3 is a rear wheel, 4 is a seat, 5
Is a steering handle, 6 is a cutter housing, 7 is a cutter blade, 8 is a discharge port, 9 is a lower shooter, 10 is a middle shooter, 11 is an upper shooter, 12 is a glass bag, 13 is a blower, 14 is a main body part, 15 is a A duct part, 16 is an impeller, 17,19,20 is a rotating shaft, 18 is a suction port 21,22,23,24,26,27,28,
30, 31, 32 are pulleys, 25, 29, 33 are belts, and 34 are wings.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Masayuki Ota Inventor Masayuki Ota 1-4-1 Chuo, Wako-shi, Saitama, Ltd. Honda R & D Co., Ltd. (56) References: 62-175825 (JP, U)

Claims (1)

[Claims] 1. One end of a shooter is connected to a grass clippings outlet provided on a side portion of a cutter housing accommodating a cutter blade, the shooter extends rearward and tilts upward, and the other end of the shooter is a rear portion of a body. In a lawn mower, which is connected to a grass bag provided in, and in which grass clippings are conveyed from the grass clippings outlet to the glass bag through the shooter, outside the cutting grass conveyance path outside the cutter housing. A blower is connected to the lower part of the shooter for communication, and the blower is located in front of the shooter on the side of the cutter housing on the side of the grass lawn discharge port of the cutter housing and inside the outer part of the shooter. A lawn mower with a blower.