JPH0469963B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application This invention relates to a grass clippings collection device for a grass mower used primarily for mowing lawns in home gardens.

(b) Prior art As for the prior art related to this invention, for example, US Pat. No. 4,068,455 and Japanese Patent Publication No.
The ones shown in Japanese Utility Model Publication No. 22482, Japanese Utility Model Application Publication No. 59-62726, etc. are known.

(c) Problems to be solved by the invention A grass mower used for mowing lawns in home gardens, etc., uses a cutting blade that rotates inside a casing equipped with wheels to cut grass clippings from a discharge passage in the casing to a discharge outlet. It is configured so that it is discharged outside the aircraft through a discharge port, and is collected by a catcher equipped with a discharge port to prevent dissipation.

As can be confirmed from the literature described in the prior art, the catcher has a front receiving area formed as a small opening to match the discharge opening of the casing, and a rear part having a capacity for storing grass clippings. In order to increase the amount of mowing as much as possible and perform mowing work efficiently, it is common to be provided with a large-volume shape. had to be discharged and disposed of from a small-area receptacle on the front of the catcher, so when discharging and disposing of the grass clippings collected in the catcher, all of the grass clippings stored in the large-volume area at the rear of the catcher were removed all at once. As the weight is forced onto the small receiving area, the grass clippings become brittle at the receiving area and cannot be disposed of quickly, resulting in a lot of effort and time spent disposing of the grass clippings collected in the catcher. In reality, work efficiency was not expected to be improved.

In order to prevent this phenomenon from occurring, the catcher is equipped with an opening separate from the front socket, and when disposing of collected grass clippings, the opening and closing opening is opened to expand the area of the discharge opening and allow the grass to be collected. It is possible to speed up the discharge, but such a configuration would complicate the structure of the catcher, increasing costs, making the opening/closing parts more likely to break down due to the complicated structure, and increasing the weight of the catcher. There are concerns that this could lead to a reduction in the actual capacity of grass clippings.

The present invention has been made in view of these points, and its purpose is to make the catcher simpler and lighter than conventional ones without complicating the structure of the catcher, and to reduce the amount of grass clippings that can be accommodated. To provide a new grass clippings collection device for a lawn mower, which can be made larger in size and is also designed to improve the efficiency of storing grass clippings in a catcher.

(d) Means for Solving the Problems That is, the grass clippings collection device for a grass cutter according to the present invention has a structure in front of a catcher 9 which is constructed by covering a perforated cloth material 15 on a frame 13 having a substantially box shape. The opening section 14 formed in the section includes a front connection opening section 14a with a small cross-sectional area that matches the discharge opening 8 of the casing 3 of the mower body, and an opening on a sloped surface that is continuous above the opening section 14a and faces diagonally forward and upward in side view. The portion covered by the perforated cross member 15 from the rear end of the open mouth portion 14b to the rear end of the entire catcher is much wider than the front connection port 14a. The front connection port 14a is formed in a large cross-sectional area.
When the catcher 9 is installed in the casing 3 with the catcher 9 aligned with the discharge port 8, the opening portion 14b is rotatably attached to the upper edge of the discharge port 8 and the spring 2
The device is characterized in that the lid body 19, which is biased toward closing at step 1, is also pressed and closed.

(e) Effects of the Invention Since the grass clippings collection device for a grass cutter according to the present invention is configured as described above, it produces the following effects.

The grass clippings collected in the catcher can be disposed of through the wide open area 14 consisting of the front connection port 14a that matches the discharge port 8 and the open port 14b connected above.
Even if the rear part is made much larger than 4 to form a catcher with a large capacity, the opening will not be clogged with grass clippings, and grass clippings can be disposed of efficiently at once. It became.

Then, the front connection port 14a and the open port 14
Since the wide-area open part 14 consisting of b is provided in a normally open state by not covering the perforated cloth material 15 in the same part, it corresponds to the open opening part 14b compared to the conventional one. As the area of the perforated cross material 15 is reduced, the structure becomes simpler and costs are reduced. Furthermore, since the weight of the catcher is also reduced, the capacity of the catcher to accommodate grass clippings is increased in terms of weight, and the amount of grass collected is increased.

In addition, when the catcher is attached to the casing, the open opening 1 that is always open on the catcher
4b is automatically pressed and closed by a lid 19 rotatably attached to the upper edge of the discharge port of the casing, so a special lid is not required to close the opening. It is possible to effectively prevent the grass clippings from leaking from the catcher without having to do so, which makes the structure even simpler, and when disposing of the collected grass clippings, just by removing the catcher, a wide area discharge outlet can be opened. It is easy to handle because it can be secured.

Further, the open port 14b is connected to the front connection port 1.
Since it is formed on an inclined surface that continues above 4a and faces obliquely forward and upward in side view, the chatter 9
Even if the amount of grass clippings collected increases, an air vent space is always ensured between the opening portion 14b and the upper surface of the catcher 9 rearward thereof, and as the amount of grass clippings collected increases. This eliminates the problem of air blowing and allows good grass clippings to be collected.

A lid body 19 is rotatably attached to the upper edge of the discharge port of the casing and is biased to rotate downward at the open mouth portion 14b formed on the inclined surface facing obliquely forward and upward in side view. When the two come into contact with each other and press closed, the pressing force functions to fix the attached catcher. Therefore, the catcher can be attached by a simple engagement method without using a fastening structure, etc. It can be easily attached and detached.

(f) Embodiments Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a partially cutaway plan view of the main parts of a lawn mower in which the present invention is implemented, and FIG.
3 is an overall side view of the mower in which the present invention is implemented, FIG. 4 is an overall plan view of the mower shown in FIG. 3, and FIG. 5 is a view of the catcher in FIG. FIG. 6 is a plan view of the catcher of FIG. 5.

In FIGS. 3 and 4, the lawn mower is mainly composed of a bowl-shaped casing 3 having front wheels 1, 1 and rear wheels 2, 2, and a handle 10 extending diagonally rearward and upward from the casing 3. However, a reaping lever 11 and a travel lever 12 are installed near the grip portion of the handle 10.

A drive shaft 5 is suspended from an engine 4 mounted on the center of the upper surface of the casing 3, and a knife-shaped cutting blade 6 is attached to the lower end of the drive shaft 5.

The cutting blade 6 is located inside the casing 3 and rotates around the drive shaft 5 to cut the grass.In order to discharge the grass cut by the cutting blade 6, the casing 3 has a blade for cutting the grass. A discharge passage 7 is formed in the inner portion along the peripheral wall, and the rear end of the discharge passage 7 is opened rearward as a discharge opening 8.

Note that a catcher 9 is provided behind the outlet 8 so that the grass clippings discharged from the outlet 8 can be stored in the catcher 9, as in the previous model.

By the way, the present invention is characterized in that the structure of the catcher 9 and the configuration in which it is installed behind the discharge port 8 are as follows.

The catcher 9 is constructed by covering a frame 13 made of pipe material or the like in a substantially box shape with a perforated cloth material 15 such as a net. Required portions are open portions 14 that are not covered by the perforated box material 15.

That is, the front side of the frame 13 is formed into the front connection port 14a having a small cross-sectional area that matches the discharge port 8 of the casing 3, and the portion continuing above the front connection port 14a is formed on the side. It is formed in the open opening part 14b of the inclined surface facing diagonally forward and upward in view, and the opening part 14 is formed by both parts 14a and 14b.
is formed.

Then, from the rear end of the open opening 14b to the frame 13
The portion covered by the perforated cross material 15 up to the rear end of the entire body is formed to have a much larger cross-sectional area than the front connection port 14a.

Note that the open mouth portion 14b is formed to have an opening area corresponding to the size of the lid body 19, which will be described later.

The structure of installing the catcher 9 constructed in this manner in the casing 3 is as follows.

Pins 16, 16 are provided outward from the frame constituent members located on the left and right sides of the open portion 14, and these pins 16, 16 are connected to the base of the handle 10 on the side of the discharge port 8, which is the corresponding location. The catcher 9 is engaged with the receiving parts 18, 18 formed inside the members 17, 17, and the catcher 9 is swung around the pins 16, 16, so that the horizontal frame body located at the lower end of the connection port 14a is moved. The component can be installed in the casing by fitting it into a receiver provided on the outer side of the lower edge of the discharge port 8. When installed in this way, the front connection port 14a of the open portion 14 is connected to the casing. The discharge port 8 of No. 3 corresponds to the discharge port 8 of No. 3.

Therefore, when the catcher 9 is installed, the open port 14b that continues above the front connection port 14a remains open; The lid body 19 is closed by being pressed downward.

The lid body 19 has a hinge structure 20 at its upper end and is rotatably attached to the upper edge of the discharge port 8 of the casing 3, and is elastically biased in the closing direction by a spring 21 interposed in the hinge part 20. When the catcher 9 is not installed, the outlet 8 of the casing 3 is closed.

Then, when attaching the catcher 9, the cover body 19 is rotated upward, and the catcher 9 is attached to the casing 3 as described above.Then, when the cover body 19 is released, the spring 21 is attached. The lid body 19 is lowered by the force and closes the opening portion 14b of the opening portion 14 in a press-like manner.

In addition, 22 in the figure is a handle provided approximately at the center of the upper surface of the catcher, and 23 is a reinforcing member for reinforcing the frame of the catcher.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway plan view of the main parts of a lawn mower in which the present invention is implemented, and FIG.
3 is an overall side view of the mower in which the present invention is implemented, FIG. 4 is an overall plan view of the mower shown in FIG. 3, and FIG. 5 is an extracted view of the catcher in FIG. 1. FIG. 6 is a plan view of the catcher of FIG. 5. 3...Casing, 8...Discharge port, 9...Catcher, 13...Frame body, 14...Opening part, 14a...Front connection port part, 14b...Opening port part, 15...Perforated cloth material, 19...Lid body, 21... Spring.

Claims (1)

[Claims] 1. An open part 14 formed at the front of the catcher 9, which is constructed by covering a frame 13 having a substantially box-like shape with a perforated cloth material 15, is aligned with the outlet 8 of the casing 3 of the mower body. It consists of a front connection port 14a with a small cross-sectional area, and an open port 14b that continues above the front connection port and has an inclined surface facing diagonally forward and upward in side view. The portion covered by the perforated cloth material 15 leading to the end is formed to have a much larger cross-sectional area than the front connection port 14a, and the front connection port 14a is aligned with the discharge port 8 to connect the catcher. 9 is installed in the casing 3, the opening portion 14b is pressed and closed by the lid 19, which is rotatably attached to the upper edge of the discharge port 8 and biased to close by a spring 21. A grass clippings collection device for a grass mower, characterized in that: