JP2568257Y2 - Lawn mower mowing turf housing structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for accommodating a lawn mower.

[0002]

2. Description of the Related Art Conventionally, as one form of a lawn mower, a lawn mowing part is mounted below a vehicle body of a self-propelled traveling part, and a lawn mower housing part is attached to a rear part of the traveling part, and the mowing is performed by the lawn mowing part. There is a type in which turf can be transported to a lawn turf storage unit via a lawn turf transportation channel.

[0003] In the grass clippings storage section, the bottom of a bottomed cylindrical storage basket is formed so as to be openable and closable in a double-opening manner, and the bottom can be opened and closed by an opening and closing operation mechanism.

By operating the opening / closing operation mechanism to open the bottom of the storage basket in this manner, the cut grass stored in the storage basket can be discharged downward.

[0005]

However, in the above-mentioned mowing turf housing section, when the machine vibrates violently due to unevenness of the ground during mowing or traveling, the bottom of the housing basket is kept closed. Was not able to be performed, and there was a problem that the stored grass spilled from the bottom.

[0006]

Therefore, in the present invention, a lawn mowing part is mounted below the vehicle body of the self-propelled traveling part, and a lawn mower housing part is attached to the rear part of the traveling part, so that the mowing is performed by the lawn mowing part. A lawn mower capable of transporting the turf to a lawn mower storage section via a lawn lawn transport flow path, wherein the lawn mower storage section has a bottomed cylindrical housing section main body at a rear portion of a traveling section in a front-rear direction. The present invention provides a mowing turf housing portion structure for a lawn mower, characterized in that the mowing turf is configured to be rotatable about a coaxial center by being supported through a shaft having an axis directed to the shaft.

Further, the present invention is characterized in that the rotation center position of the reversible housing main body is located below the position of the center of gravity of the housing main body.

[0008]

[Function] When performing the lawn mowing operation, the lawn mowing part is operated while the traveling part is self-propelled, and the lawn mowing by the lawn mowing part is stored in the rear lawn mower storing part through the lawn lawn transport flow path. I do.

After completion of the lawn mowing operation, the grass turf housed in the grass turf housing section can be discharged by inverting the housing body of the grass turf housing section at the grass turf accumulation area.

At this time, since the rotation center position of the reversible housing portion main body is located below the position of the center of gravity of the housing portion main body, the housing portion main body is automatically inverted by its own weight, and the cutting is performed. Turf discharging work can be performed easily.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

A shown in FIG. 1 is a lawn mower provided with a mower storing structure according to the present invention. The lawn mower A is provided below a body frame 2 of a self-propelled traveling unit 1. 3 is attached via a lifting mechanism 4 so as to be movable up and down.
The mowing blade 5 provided on the vehicle unit 1 is interlocked to the motor unit 6 of the traveling unit 1 via a transmission mechanism 7, and the mowing grass accommodating unit 8 is attached to the rear end of the vehicle body frame 1. 3 are connected to each other via a cut grass transfer pipe 10 as a cut grass transfer passage.

The traveling section 1 has an operation column 11 erected at a front portion of the body frame 1, and a handle 12 is provided at an upper end of the operation column 11.
And the motor unit 6 is arranged behind the handle 12,
A seat 13 is arranged on the motor unit 6, and front, rear, left and right wheels 14, 14, 15, 15
5 is installed.

The lawn mowing unit 3 has gauge wheels 17, 17, 18, and 18 rotatably mounted on the front, rear, left and right sides of a casing 16, respectively, and vertically supports a cutting blade drive shaft 19 on a ceiling wall 16a of the casing 16. Then, while attaching the cutting blade 5 to the lower end of the cutting blade drive shaft 19,
The transmission mechanism 7 is connected to the upper end of the cutting blade drive shaft 19 in an interlocking manner.

FIG.
As shown in FIG. 3, a column 25 is erected at the rear end of the vehicle body frame 1, and a reversing hitch 26 is attached to the lower portion of the column 25 so that the axis is oriented in the front-rear direction. A lid for attaching the frame 27, attaching the housing part main body 28 made of a bottomed cylindrical storage basket to the housing part body mounting frame 27, and closing the upper end opening 28a of the housing part main body 28 at the upper end of the column 25. The body 29 is attached to open and close freely. In this manner, the cut grass storing section 8 can be turned upside down around the reversing hitch 26. 29a is a pivot pin for opening and closing the lid, 29b
Is a handle for opening and closing the lid.

As shown in FIGS. 1 and 2, the housing body mounting frame 27 is a pair of right and left adjustable vertical frames.
27a, 27a, a horizontal frame 27b extending between upper ends of both vertical frames 27a, 27a, hanging frames 27c, 27c extending rearward from upper ends of the vertical frames 27a, 27a, and respective vertical frames. Support frames 27d, 27d extend rearward from the lower ends of the vertical frames 27a, 27a, and a middle part of the vertical frames 27a, 27a is attached to the inverted hitch 26.

In addition, the reversing hitch of the vertical frames 27a, 27a
As shown in Fig. 3, the mounting position on 26
The center of gravity of the housing portion main body 28 attached to 27a, 27a is positioned above the rotation center C of the reversing hitch 26.

As shown in FIGS. 1 and 2, the accommodating portion main body 28 has hanging frame insertion pipes 32, 32 attached to the left and right side edges of the upper end opening 28a, while supporting frames are also provided at the left and right sides of the bottom portion. Attach the insertion pipes 33, 33 and attach each pipe 32, 32,
33, 33 are inserted through the respective frames 27c, 27c, 27d, 27d so that the housing body 28 can be detachably attached.

As shown in FIG.
One end is connected to the casing 16 of the lawn mowing part 3 while being connected to the other end to the lid 29 of the lawn mowing storage part 8.
The cut grass storing section 8 can be stored in the storing section main body 28.

The embodiment of the present invention is configured as described above. According to the embodiment, the following operation and effect are produced.

That is, when the cut grass stored in the storage unit main body 28 of the cut grass storage unit 8 is discharged, as shown in FIG.
When the lid 29 is gripped by the lid opening / closing handle 31 and the lid 29 is opened, the housing body 28 supported upright by the lid 29 is inverted by the inversion hitch 26, and the upper end opening is opened. Since the portion 28a opens downward, the cut grass K and the like stored therein can be quickly and reliably discharged from the upper end opening 28a.

At this time, since the position of the center of gravity of the housing portion main body 28 is located above the rotation center C of the reversing hitch 26,
The housing body 28 is automatically inverted by its own weight, so that the cut grass K can be discharged smoothly.

FIG. 4 shows a safety device 30. The safety device 30 includes a left and right armrests 13a and 13b of a seat 13 which are connected to a transmitting unit 31a and a receiving unit 31b, which constitute an optical sensor 31, respectively. An operator sensing unit 31c is formed in a space between the transmitting unit 31a and the receiving unit 31b by mounting the optical sensor 31 and the PTO clutch lever sensor 33 as shown in FIG. The control unit 34 is connected to the input side and the output side of the control unit 34 is connected to the engine stopping means 35 of the motor unit 6.

As described above, when the optical sensor 31 cannot detect that the operator is sitting on the seat 13 and the PTO clutch lever (not shown) is in the ON state, the engine stop means 35 causes the engine to stop. 6a (see FIG. 7) can be forcibly stopped.

Therefore, safety in an emergency such as when the operator falls down from the traveling unit 1 or when the operator forgets to disconnect the PTO clutch lever can be ensured.

FIG. 6 shows a steering mechanism 36 of the traveling section 1 and the lawn mowing section 3.
The steering mechanism 36 includes a front wheel steering unit 37, a rear wheel steering unit 38, a front gauge wheel steering unit 39, and a rear gauge wheel steering unit 40, which are mutually first and second. First through two levers 41 and 42
・ Interlockingly connected by the second and third push-pull rods 43,44,45,
The turning steering posture of the front, rear, left and right wheels 14, 14, 15, 15 and the turning steering posture of the front, rear, left and right gauge wheels 17, 17, 18, 18 are synchronized so that the gauge wheels 17, 17, 18, 18, 18 prevents the grass from being hurt.

In FIG. 6, reference numeral 46 denotes a handle shaft, 47 denotes a handle gear, 48 denotes a reduction gear shaft, 49 denotes a reduction gear, and 50 denotes a lever support shaft.

FIG. 7 shows a structure of a power take-out portion 55 attached to a front portion of the vehicle body frame 2 of the traveling portion 1. The power take-out portion 55 has a front PTO shaft 56, a rear PTO shaft 57, A power switching unit 58 is connected to the shafts 56 and 57, and the power switching unit 58 and the engine 6a of the prime mover unit 6 are operatively connected via a power transmission mechanism 59. 60 is a stay.

As shown in FIGS. 8 and 9, the front PTO shaft 56 has an output gear 56a at the distal end and an input gear 56b at the proximal end.

As shown in FIGS. 8 and 9, the rear PTO shaft 57 is provided with an output gear 57a at the distal end and an input gear 57a at the proximal end.
b is provided.

The power switching unit 58 has a cylindrical input shaft 58a loosely fitted on the outer peripheral surface of the rear PTO shaft 57, and an input pulley 58b mounted on the outer peripheral surface of the distal end portion of the cylindrical input shaft 58a, while the input pulley 58b is mounted on the base end. An output gear 58c is provided, and a slide switching gear is mounted on the output gear 58c.
58d and a slide switch gear 58
The other part of d is slidable on either the input gear 56b of the front PTO shaft 56 or the input gear 57b of the rear PTO shaft 57 so as to be meshable. 58e is a shifter, 58f is a casing, and 61,62,63,64 are bearings.

The power transmission mechanism 59 includes an output shaft 6b of the engine 6a.
A transmission belt 59a is wound between an output pulley 6c attached to the power switch unit 58 and an input pulley 58g of the power switching unit 58.
59b is a roller.

In this way, as shown in FIG. 8, when the slide switching gear 58d is slid backward by the shifter 58e, the power output from the engine 6a is changed to the output shaft 6b →
Transmission belt 59a → input pulley 58b → cylindrical input shaft 58a →
Slide switching gear 58d → input gear 57b → rear PTO shaft 57
→ It can be transmitted to the output gear 57a.

As shown in FIG. 9, when the slide switching gear 58d is slid forward by the shifter 58e,
It can be transmitted to the above-mentioned slide switching gear 58d → input gear 56b → front PTO shaft 56 → output gear 56a.

FIG. 10 shows a cleaning device provided on the operation column 11.
65 shows the structure of the cleaning device 65.
A blower 65a is provided inside the blower 65a, and an air ejection gun 65b is connected to the blower 65a via a hose 65c.
a is operatively connected to the engine 6a via a blower drive mechanism 65d, and the blower drive mechanism 65d is operatively connected to the base end of a blower on / off lever 65e attached to the lower part of the operation column 11, and is connected to the engine 65a by the lever 65e. The blower 65a can be started and stopped.

In this way, when cleaning the traveling section 1 or the like, the blower on / off lever 65e is operated to operate the blower 6.
5a is started, air is ejected from the air ejection gun 65b, and the air is blown against the traveling unit 1 to be cleaned.

FIG. 11 shows the structure of the lever guide body 66. The lever guide body 66 is formed with a rotary elevating guide groove 66a extending in the front-rear direction, and is located on the right side of the front end of the rotary elevating guide groove 66a. A relay guide groove 66b is extended and formed, and a PTO on / off guide groove 66c is formed extending forward from the right end of the relay guide groove 66b, and these guide grooves 66a, 66b, 66 are formed.
A rotary lifting / lowering / PTO ON / OFF operation lever 67 is slidably inserted therein, and a lever retainer 68 is disposed immediately below the rotary lifting / lowering guide groove 66a.

In this way, as shown in FIG. 12, when the rotary lifting / lowering and PTO ON / OFF operation lever 67 is slid in the rotary lifting / lowering guide groove 66a, the middle part of the lever 67 is connected to the lever retainer 68. The lever 67 cannot be moved to the PTO connection position 71 unless the lever 67 is slid laterally from the rotary descending position 69 along the relay guide groove 66b and moved to the PTO cutting position 70. I have to. 72 is a rotary ascending position.

In this manner, the rotary lifting lever and the PT
An O on / off lever is also used by one rotary up / down and PTO on / off operation lever 67, so that the PTO connection operation cannot be performed until after the rotary down operation, thereby improving safety. I have.

[0040]

According to the present invention, the following effects can be obtained.

That is, the housing main body is pivotally supported on the rear portion of the traveling section via a shaft whose axis is oriented in the front-rear direction, so that the housing main body can be turned upside down about the same axis. In addition, when the cutting section is discharged by inverting the housing section main body, the cut grass can be discharged on the spot without securing an extra space for turning the housing section main body behind the traveling section.

In addition, since the center of rotation of the housing body is located below the center of gravity of the housing body, the upper portion of the housing body can be easily rotated only slightly in the reverse direction. The housing body can be turned over,
The cut grass discharging work can be performed easily.

[Brief description of the drawings]

FIG. 1 is a side view of a lawn mower having a lawn mower storage structure according to the present invention.

FIG. 2 is a partial perspective explanatory view of a cut grass storing section.

FIG. 3 is an explanatory view of a cut grass discharging state of a cut grass storage unit.

FIG. 4 is an explanatory perspective view of a safety device.

FIG. 5 is a control block diagram.

FIG. 6 is an explanatory plan view of a steering operation mechanism.

FIG. 7 is a side view of a lawn mower including a power take-out unit.

FIG. 8 is an explanatory diagram showing a power transmission state to a rear PTO shaft.

FIG. 9 is an explanatory view showing a state of power transmission to a front PTO shaft.

FIG. 10 is a side view of a lawn mower including a cleaning device.

FIG. 11 is a plan view of a lever guide body.

FIG. 12 is an explanatory diagram of a lever switching operation.

[Explanation of symbols]

 A lawn mower 1 running part 3 lawn mowing part 8 mowing lawn accommodation part 28 accommodation part body

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model 63-86722 (JP, U) Japanese Utility Model 63-22106 (JP, U) Japanese Utility Model 63-186216 (JP, U)

Claims (2)

(57) [Scope of request for utility model registration] 1. A lawn mowing part is mounted below a vehicle body of a self-propelled traveling part, and a lawn mowing storage part is attached to a rear part of the traveling part. A lawn mower capable of being conveyed through a conveying flow path, wherein the lawn mower housing section is configured such that a housing section main body formed into a bottomed cylindrical shape is axially directed to a rear portion of a traveling section through an axis oriented in the front-rear direction. Support
A lawn mower housing structure for a lawn mower, characterized in that it can be turned upside down about a coaxial center . 2. A lawn mower housing structure for a lawn mower according to claim 1, wherein the rotation center position of the reversible housing portion main body is located below the position of the center of gravity of the housing portion main body.