JPH03119917A - Grass reaper in mower - Google Patents

Abstract

PURPOSE:To improve finished state of reaping work by supporting reaped grass reaped with reaping blade so as not to downwardly drop in starting wind part and discharging the reaped grass to discharging port using centrifugal force affecting reaped grass within discharging guide and generated wind force. CONSTITUTION:A vertical shaft 12 is fixed on a ceiling wall of mower deck 9 connected to car body and the shaft is made to movable by driving force of a motor, then a blade 18 is fixed at lower end of the shaft. Thus, a starting wind part 20, set at a site opposing to reaping blade 19 at outer end part of said blade 18, is formed in recessing from top end of the blade 18 to inside. Next, an outer periphery of said blade 18 is covered with outer peripheral wall 21 of mower deck 9. Further, a discharging guide 25, connecting an inner peripheral surface 23 approaching to the starting wind part 20, an upper covering surface 24 approaching to top end part of the blade 18 from upper side in crossing to said inner peripheral surface 23 and an outer covering surface 24a covering outer end of the blade 18 from side direction, is formed. As the result, finished state of reaping work is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention provides a mowing device for a one-walking mower and a grass clipping storage for a riding mower such as a garden tractor, a lawn mower, or a ride mower! Place A is the field of use.

[Prior art]

In the prior art, as disclosed in Japanese Utility Model Application Publication No. 61-80619, a grass outlet is formed on one side of a mower deck that encases a cutter attached to a vertical shaft rotating in the same direction, and the cutter is A mower in which an arc-shaped back wall substantially along the cutter rotation locus is formed on the rear side in the traveling direction, and a guide wall is formed continuous from the back wall to the side of the cutter and in the i11 direction to guide the grass clippings to the discharge area, In order to prevent air from escaping from the lower end of the back wall, a guide portion is provided that protrudes inwardly along the lower end of the back wall located below the cutter, and tT
A rib protrusion protruding inwardly is provided along the lateral direction in the middle of the wall in the downward direction.

[The problem that the invention seeks to solve) ^1f In the prior art, when wet grass clippings or debris adhere to the back wall or lower end, a phenomenon occurs in which the grass clippings fall from between the guide portion and the cutter. The main concern was that the working conditions were not stable.

[Means to solve the problem]

This invention takes technical measures to solve the problems mentioned in item ^;j. In other words, a 1γ1° angle wind is formed at the outer end of the blade, which is attached to the lower end of the vertical shaft that is drivably supported by the driving force of the prime mover on the ceiling wall of the mower connected to the vehicle body, at the part facing the cutting blade. The outer peripheral wall of the moadetsuki that covers the outer periphery of the blade is formed by receding inward from the tip of the blade. A discharge guide was formed in which a -1- side cover surface that approached from the + side was connected to an outer cover surface that covered the outer end of the blade from the side.

[Effect]

When mowing grass in the garden, the mower drives the mower, and as the vehicle moves, the blades rotate within the discharge id on the outer peripheral wall, causing the cutting blades to sequentially cut the grass facing into the mower deck.

It rotates while supporting the grass clippings that are about to fall downward, applying centrifugal force to the grass clippings, and generates wind power at the wind blower.
1-, and sequentially discharge from the outlet of the mower deck to the outside of the mower deck.

〔Example〕

Hereinafter, one embodiment of the present invention will be specifically described based on the drawings.

First, we will explain the configuration of the 11 body 1 of the 6-ride mower, and the machine frame 2 is provided with a connecting hitch 3 on the rear side, a front tank 4,
4 and the ventral suspension links 6.6 and 7 between the rear shafts 5,5,
The mowing device is connected to the I 7 so as to be movable up and down.
I! l! 11 possible connections.

Therefore, in the rear discharge mowing device 8 as the first practical example shown in FIGS. 1 to 4, the mower deck 9 is formed in a large arc shape on the front side and small arc shapes on both left and right sides when viewed from above. , is formed so that the width of the rear side is narrower than the front side when narrowed to the rear side, and along the front side of the ceiling fly l Q, a bulge part 11 is formed so as to be one step higher on one side, and a central longitudinal part is formed on the back part. A shaft 12, and a left vertical shaft 13 located on the left and right rear sides of the shaft 12. The right vertical shaft 14 is rotatably supported along the circular arc shape, and the central vertical shaft 12 is provided with a two-stage V pulley 1.
5 is attached to the left side vertical shaft 13, and a left side receiving JU+ V pulley 16 is supported on the left side vertical shaft 13, and a right side driven V pulley 17 is supported on the right side vertical shaft 14 in a freely rotating manner. And these vertical axes 12
, 13, 14 attached to the lower ends of the blades 18, 18
．． 18 is formed with cutting blades 19° 19... at both left and right ends, and at a position facing the cutting blades 19, 19, the blades 18, 18. A rising wind raising part 20, 20... is formed, and blades 18,
18. While integrally forming an outer peripheral wall 20 covering 18,
A rear discharge port 22 is provided on the rear side, and an inner circumferential surface 2 is provided on the inside of the ceiling wall 10 on the front outer periphery of the rotating IFA ml of the blade 18.18.
3.23.23, and 1.1 at the tip of the blade 18, 18.18, intersecting with the inner peripheral surface 23, 23.23. Close to the side and face -1. The outer cover surface 2 covers the side cover surface 24, 24° 24 and the outer end of the blade 18, 18.18 from the side.
4a, 24a, and 24a are connected to each other in a discharge guide 25,
25.25, and this discharge guide 25,
25.25 extends to the line segment 2G connecting the adjacent vertical axes 12.13 and the line segment 27 connecting the vertical axis 12°14, or extends by a predetermined length a beyond the line segments 2G and 27. It is joined. The moadetsuki 9 is provided with a front support ring 28 and a front support ring 31, 31 on the first side outer peripheral wall 21, and rear supports 111, 30, 30 are attached to the left and right sides of the rear discharge port 22. Then, pass the V-bell 1-33 to m on the drive shaft V-pulley 32 and the 1-side of the two-stage V-pulley 15, which protrude below the nine-stage motor 31 mounted on the front part of the intermediate rest 1. - The next V-bell 1-33 is configured so that a tension work clutch (not shown) provided on the machine frame 2 acts to connect and disconnect the rotational power, and the lower part of the pulley 15 has two stages, the left passive side. Pulley 16 and right side passive ■ Secondary V bell 1 on pulley 17
- 34, and a tension pulley 36 of a tension arm 35 rigidly attached to the mower deck 9 is brought into contact with the secondary V-bells 1-34.

The grass clippings discharge pipe 37 to which the rear discharge pipe 122 is attached is arranged along the underside of the vehicle body 1, and is connected to a grass clippings storage device 38 mounted on the connecting pitch 3 so that its rear end is in communication with it.

Then, the second implementation shown in FIGS. 5 and 6.

Also in the side discharge mowing device 39 as an example, the mower deck 40 is formed in a large circular arc shape on the front side, a small circular arc shape on the left side, and the rear side is perpendicular to the front and rear direction when viewed from the side. is formed. Moadetsuki 40 ceiling J+,! 41 is formed with a bulge 42 that becomes one step higher in the 11-direction along the front side and gradually increases in width toward the left side, and on the back thereof is a central vertical 1jll143,
Left vertical axis 44 located on the left and right rear sides of the left vertical axis 44. The right vertical shaft 45 is rotatably supported along the arc shape, a two-stage V pulley 46 is attached to the central vertical shaft 43, and the left vertical shaft 44
The left passive V-pulley 47 is on the left side, and the right side 11itt145 is on the left side.
A 1V pulley 48 is attached to the right side receiver. and.

The blades 49, 49.49 attached to the lower ends of these vertical shafts 43, 44, 4.5 have cutting blades 50 at both left and right ends.
50... and this cutting blade 50.50.
...)'1. +- wind raising parts 51, 51... are formed, and blades 49, 49, 49! 5-, and outer periphery 4 grooves 52 are integrally formed on the outer periphery of the ceiling wall 41 except for the right side. 1. The TII bulge 42 is configured to communicate with a side vent 153 provided on the right side. A blade 4 is installed inside the ceiling wall 41.
9, 49. Rising wind raising part 5 on the rear outer periphery of the rotation locus of 49
1,51.The inner circumferential surface approaching 51 (Fig. Tsume Ministry'I@),
The 1 side cover surface (not shown) approaches and opposes the upper side of the tips of the blades 49, 49.49 and the outer cover surface covers the outer ends of the blades 49, 49.49 from the side. (Ministry of Illustration 1118) Discharge guide 54
゜54,. 54 and this discharge guide 5
4.54.54 extends to line segment 55 connecting adjacent vertical lines 11i11143.44 and line segment 56 connecting vertical line 11ft43.45, or extends by an appropriate length a beyond those line segments 55.5G. It is joined. On the front outer circumference N and 52 of the moadetsuki 40, there is a ^1f center support shaft 57 and a front side support @58.
．． 58 is provided, and rear support shafts 59.5 are provided on the left and right of the rear side.
9 is installed. The drive 1111 shaft V pulley 6 protrudes below the prime mover 60 mounted on the front part of the vehicle body 1.
1 and 2 stages ■Pulley 4G 1, V bell 1 to 62 to m on the side
A tension work clutch (not shown) provided on the machine frame 2 acts on this V-bell 1-62 to connect and disconnect the rotational power, and the two-stage ■booth 46 Lower part of.

Left side passive ■ Pulley 44 and right side”!il’ll V
Pass the secondary V-bells 1-63 to the wheelie 4-5, and abut the tension pulley 65 of the angion arm 64 elastically attached to the moadetsuki 40 to this secondary V-bell 1-63. There is. Side discharge: The grass clippings discharge tube 66 attached to the J53 bypasses the outside of the right rear wheel 5 and extends to the rear of the vehicle body 1, and its rear end is connected to the grass clippings storage device 67 attached to the connecting hitch 3. They are connected so that they communicate.

Next, the operation in the first embodiment will be explained. When mowing the lawn -q in the garden, lower the mowing bag mouth 8 and connect the tension work clutch.
5 to the two-stage V pulley 17, and further transmitted from the two-stage V pulley 17 to the left side receiver 11V pulley 47 and the right side driven pulley 48 via the secondary bells 1 to 34. , plate 18, 18.18 is times I
I was forced to lie down. Then, when the main clutch is connected, the vehicle body 1 moves in the J9 direction, so the grass that enters the inside of the mower deck 9 sequentially is removed by the blades 18, 18, and the cutting blade 19 of 18.
19... are reaped one by one and outside! The grass clippings are supported by the discharge guide 25 of the yrl wall 21 and the vertical wind blowing parts 20, 20, . . . to prevent them from falling downward.

Around the rotational locus of the blades 18, 18.18, until the middle of the discharge stroke of the cutting q, the grass clippings are discharged backward [122 It is smoothly discharged towards the
1X #P fl'+grass clippings storage device 38 via tube 37
They are sequentially transported and stored.

〔Effect of the invention〕

In short, this invention provides a mower installed at the lower end of the vertical shaft which is supported by the ceiling wall of the moadetsuki connected to the vehicle body so that it can be driven by the driving force of the prime mover. The wind raising part is formed by retreating inward from the tip of the blade, and the outer peripheral wall of the mower deck that covers the outer periphery of this blade is raised up and intersects with the inner peripheral surface approaching the wind raising part. A discharge guide is formed in which the − side cover surface that approaches the tip of the blade from the −4 side and the outer cover surface that covers the outer end of the blade from the side are connected.

The grass cut sequentially by the cutting blade of the blade is 1'f-
The grass clippings are supported by the wind raising part to prevent them from falling downward, and the centrifugal force that acts on the grass clippings in the discharge guide and the generated wind force make it possible to efficiently discharge the grass clippings for 11 days. This will save you a tithe of your work.

[Brief explanation of drawings]

Drawings 1 to 5 show the first embodiment, in which Fig. 1 is a plan view of the mowing device, Fig. 2 (A) is a front sectional view, (B) is a left side sectional view, and Fig. 3 is a front view. FIG. 4 is an overall side view. Also, Figures 5 to 6 of the drawings are
The figure shows the second embodiment, and FIG. 5 is an L side view of the mowing device.
FIG. 6 is an overall side view. Explanation of main symbols 1... Vehicle body 8... Rear discharge mowing device Iv1'39.
・Side discharge mowing device 9,40...Moadetsuki 10
,41...Ceiling wall 12,43...Central vertical i$11
111.44 Left vertical axis 14.45... Right vertical axis 1
8.49...Blade 19.49...Mower blade 20
, 51...\'11 Lifting part 21.52...Outer peripheral wall 23...Inner peripheral surface 24...1. Side cover surface 2
4a...Outer cover surface 25.54...Ejection guide

Claims (1)

[Claims] (1) A rising wind blowing part formed at the part facing the cutting blade at the outer end of the blade attached to the lower end of the vertical shaft that is drivably supported by the driving force of the prime mover on the ceiling wall of the mower deck connected to the vehicle body. is formed by receding inward from the tip of the blade, and the outer circumferential wall of the mower deck that covers the outer periphery of the blade rises up to the inner circumferential surface that approaches the wind blowing part, and the inner circumferential surface that intersects this inner circumferential surface and approaches the tip of the blade from above. A grass cutting device for a grass mower, characterized in that a discharge guide is formed by connecting an approaching upper cover surface and an outer cover surface that covers the outer end of the blade from the side.