JPH04106923U - Blower device in lawn mower - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to reduce the amount of grass clogging in the chute in mower housings that collect grass, grass, etc. cut in the mower housing via the chute and into the grass collection device. shall be. [Configuration] A shoe that connects the mower housing and the grass harvesting device.
A blower is installed inside the tank or in a part connected to it.
The blower is characterized by being equipped with a blade for cutting grass clippings, etc.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a blower device for a riding mower that cuts grass, lawns, etc.

0002 .

[Conventional technology]

As a conventional device, the mower housing covers the cutting blades that rotate around multiple vertical axes. A grass outlet is provided on one side of the housing in the horizontal direction, and a grass container is provided at the rear of the machine. There is one that connects the two with a cylindrical chute. These conventional devices facilitate the collection of cut grass and grass into the grass collection container. In order to Therefore, the grass clippings are sucked up and guided into the grass collection container.

0003

[Problem that the idea aims to solve]

These conventional devices are difficult to use when the cut grass is long or when the grass is wet. In some cases, the grass could not be completely removed by the blower and would clog the chute. . If you cut particularly wet grass and release it from the mower housing, this will form into clumps. In the case of a blower device with weak suction power, In some cases, the clumps cannot be broken up sufficiently or guided into the harvesting container, resulting in Specifically, it has the disadvantage of causing clogging within the chute.

0004

[Means to solve the problem]

This idea was proposed in view of the above-mentioned problems, and the ability of the blower is A blower device that can efficiently feed grass into the grass collection container even if it is conventional. For this purpose, the following technical measures were taken. That is, cutting blade 1 The grass discharge port 11 of the mower housing 7 that covers the mower housing 7 and the grass collection device 22 that stores the cut grass. Connected by cylindrical chutes 14 and 20, and installed inside or on these chutes 14 and 20. By providing a blower 16 in the continuous part and driving this blower 16 to rotate, The structure is such that the grass cut within the mower housing 7 is sent into the grass harvesting device 22. In the above-mentioned lawn mower, the blower 16 is formed with a blade portion 26a for cutting grass. It is characterized by the fact that

[0005]

【Example】

Hereinafter, embodiments of this invention will be described based on the drawings. First, let's explain the configuration 1 is a riding type lawn mower with an engine (not shown) installed inside the bonnet 2. , the rotational power decelerated through the transmission in the mission case 3 is transmitted to the rear wheels 4, 4. It is configured to transmit information and rotate the rear wheels 4, 4 to move the aircraft forward and backward.

[0006] A mower housing 7 is linked to the lower part of the fuselage between the front wheels 5, 5 and the rear wheels 4, 4. A hydraulic cylinder or an electric motor (not shown) is supported via The mower housing 7 is raised and lowered by driving the motor. Inside the mower housing 7, two vertical shafts are mounted at appropriate intervals in the left and right directions. , cutting blades 10, 10 are attached to the lower part thereof. The rotation of the vertical axis is in front of the engine. This is a conventionally known structure that is driven by a PTO shaft taken out from the section.

[0007] At the right end of the mower housing 7, there is an outlet 11 for discharging cut grass. is formed, and a first chute 14 composed of a bellows is detachably attached to this discharge port 11. It is connected to the. 15 is a blower device housing a blower (rotating blade) 16; The front part of the case 17 is connected to the first chute 14, and the rear upper part is connected to the first chute 14. A second chute 20 is integrally connected to the case 17 in a vertical orientation.

[0008] 22 is a grass collection device installed at the rear of the aircraft for storing grass clippings, and has an upper opening. The upper opening consists of a lid 23 and a breathable weed collection bag 24 provided below the lid 23. The rear end of the second chute 20 is connected to the lid 23, and the upper opening lid 23 is rotated upward. The structure is such that the weed collection bag 24 can be removed by moving it. As shown in FIG. 4, the blower 16 includes a disc 25, a cutting blade/flip plate 26, and a suction fin. 27, and a plurality of flip-up plates 26 are fixed radially to the outer surface of the disc 25. A blade portion 26a is provided on the outer periphery of the flip-up plate 26, and the disc 26 is provided with a blade portion 26a. Four suction fins 27 are attached to the inner surface of the 5.

[0009] As shown in FIG. 2, the blower 16 is mounted on a horizontal horizontal shaft 29 within the blower case 17. 1 and configured to rotate clockwise in FIG. A counter shaft 33 is mounted horizontally on the lower part of the rear of the aircraft, and its left and right Pulleys 34 and 35 are fixed to both ends. The left pulley 34 and the miss A belt is connected between the drive shaft 36 protruding from the case 3 and the pulley 37 fixed to the drive shaft 36. 40 is wound around, and the water of the right pulley 35 of the counter shaft 33 and the blower 16 is Another belt 43 is wound around the pulley 42 fixed to the flat horizontal shaft 29, and the belt The lower 16 is driven to rotate.

0010 In the figure, reference numeral 45 is a flat step of the lawn mower 1, 46 is a seat, and 47 is a step. It is a tearing handle. Next, the operation of the above embodiment will be explained. The engine transmits the rotational power of the engine to each rotating part. When the body moves forward, the cutting blades 10, 10 rotating inside the mower housing 7, Grass, etc. is cut to a predetermined length and discharged to the outlet 11 provided on the outside of the housing 7. The air is taken out, passes through the first chute 14, and is sent to the blower device 15 side.

[0011] At this time, most of the cut grass etc. is thrown upward and backward by the blower 16, The weeds pass through the second chute 20 and are collected into the weed collection bag 34. In this case, a blade portion 26a is provided on the outer periphery of the flip-up plate 26 of the blower 16. Therefore, long grass etc. are finely cut by this cutting blade 26a, and also damp. Even if grass is fed into the chute 14 in clumps, the rotating sharp blades will prevent it from entering the chute 14. Since the grass is finely pulverized in the narrow passage, the grass cut in the narrow passage becomes clogged in the blower case 17. There is no such thing.

0012 Moreover, in this embodiment, the suction is applied to the back surface of the disk 25 constituting the blower device 15. Since the fins 27 are fixed, a suction action is also generated when the blower 16 rotates, causing it to jump up. Coupled with the lifting action of the raised plate 26, an effect of promoting the grass discharge action is produced. Next, the structure of the blower section of the lawn mower shown in FIGS. 6 to 10 will be explained. Components that are the same or have similar configurations to those in the above-mentioned embodiments are designated by the same reference numerals. However, only parts with different configurations will be explained using new symbols. Lawn mower 1 in Figure 6 is a mower. A blower device 15 is directly attached to the discharge port 11 of the housing 7 without using a chute, This figure shows a structure in which a chute 20 extends rearward from a blower case 17.

[0013] This lawnmower 1 has three cutting blades 10, 10, 10 in a mower housing 7, and A pulley 51 is fixed to the upper surface of the vertical shaft 50 on the outside in the exit direction, and the mower housing 7 is The horizontal axis of the blower 16 is A pulley 42 is attached to the inside of the horizontal shaft 29 to rotate the A belt 55 is wound around the pulleys 51, 52, 53, and 42. From figure 8 As is clear, the blower case 17 and the chute 20 are integrally constructed. In FIG. 9, the blower 16 is rotated counterclockwise to transfer the cut grass to the rear grass collecting device 22. discharge towards.

[0014] Note that the shaded area in FIG. 9 indicates that when the blower 16 rotates, part of the grass is moved around and Hit it against the lower part of the case 17, or send it again to the mower housing 7 side. A rectifying guide 57 is installed at the front bottom of the blower case 17 so as not to obstruct grass discharge. It was established. By providing this rectifying guide 57 at the lower front side of the blower case 17, the mower The cut grass, etc. sent from the housing 7 side is passed through the blower 16 in the blower case 17. Even if the grass is being carried around, the rectifying guide 57 allows the grass to be carried with less resistance. It is discharged along the feeding direction.

[0015] FIG. 10 shows an example without the rectifying guide 57, and this type of configuration produces the above-mentioned drawbacks. I often do this. Reference numeral 58 in the figure indicates a mower housing formed on the blower case 17 side. It is the junction with 7. Connect this joint port 58 and the discharge port 11 on the mower housing 7 side. Connect them accordingly, and use hooks or the like to secure them both. Finally, the configuration of the improved example of the chute shown in Figs. 11 and 12 will be explained. The chute 70 is characterized in that its longitudinal middle portion is configured to be detachable. be.

[0016] That is, the chute 70 is connected to the discharge port 11 of the mower housing 7 and is connected to the outlet 11 of the mower housing 7. The chute 70a made of plastic whose part is gently curved and the weed collecting device 22 are connected to each other. A chute 70b whose end is connected to the upper opening lid 23 and a chute 70b located between the two The cylindrical body 70c is configured to be removable, and the cylindrical body 70c has a A hand 75 is provided.

[0017] The front chute 70a and the rear chute 70c are three strip-shaped plates 7. Connected at 7, 77, 77, and surrounded by three plates 77, 77, 77 When the cylindrical body 70c is attached to the space formed by the three parts, there is no gap between the three parts. In this state, one chute 70 is constructed. In conventional equipment, the rubber band that fixed the chute and mower housing was Remove the chute from the housing by removing the fasteners such as It is necessary to remove the grass clippings, etc., which is complicated and time-consuming. However, with this improved device, the problem of grass clogging in the chute 70 has been solved. On the other hand, remove the intermediate cylindrical body 70c and remove the blockage inside the front chute 70a. It is easy to remove accumulated grass, and the work can be done in a short time, and the cylindrical body 70 You can throw away the grass stuck inside by grasping the handle 75 of c, so you can transport it. It functions as a tool and is effective in removing grass without getting your hands dirty.

[0018]

[Effects of the idea]

As explained above, this invention is designed to remove grass from the mower housing 7 that covers the cutting blade 10. The opening 11 and a grass harvesting device 22 for storing grass clippings are connected by cylindrical chutes 14 and 20. , a blower 16 is installed in the chute 14, 20 or in a part connected thereto. , the mowing is carried out in the mower housing 7 by rotating this blower 16. In the mower configured to send the collected grass into the weed harvesting device 22, the blower A 16 is formed with a blade portion 26a for cutting grass, so the shoe Even if the grass sent into the tank 14 is in clumps, it can be cut into small pieces. Therefore, the cut grass can be collected into the grass harvesting device 22 with less clogging in the chute. becomes possible.

[Brief explanation of drawings]

FIG. 1 is a side view of a riding lawn mower.

FIG. 2 is a plan view of the riding lawn mower.

FIG. 3 is a front view of the blower.

FIG. 4 is a side view of the blower.

FIG. 5 is a rear view of the blower.

FIG. 6 is a side view of a riding lawn mower with a different blower configuration.

7 is a plan view of the riding lawn mower shown in FIG. 7. FIG.

8 is a perspective view of a blower device attached to the riding lawn mower shown in FIG. 7. FIG.

FIG. 9 is a side view of essential parts of the blower device.

10 is a diagram showing a comparative example of the blower device shown in FIG. 9. FIG.

FIG. 11 is a perspective view of a riding lawn mower with a different chute configuration.

FIG. 12 is a perspective view showing the structure of the main part of the shooter.

[Explanation of symbols]

1 Riding lawn mower 2 Bonnet 4 Rear wheel 5 Front wheel 7 More housing 10 cutting blade 15 Blower device 16 Blower 14 Shooter 20 Shooter 22 Grass harvesting device

Claims (1)

[Scope of utility model registration request] 1. A grass discharge port 11 of a mower housing 7 that covers a cutting blade 10 and a grass harvesting device 22 that stores cut grass are connected by cylindrical chutes 14 and 20, and the chutes 14 and 20 are connected to each other. In a lawn mower configured to provide a blower 16 inside or in a part connected thereto, and to send the grass cut inside the mower housing 7 into the grass harvesting device 22 by rotating the blower 16. , the blower 16 includes:
A blower device for a lawn mower, characterized in that a blade portion 26a for cutting grass is formed.