JPH0639550Y2 - Ejection cover for the lawn mower catcher - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to an improvement of a discharge cover provided to cover an upper opening of a catcher (storage bag) for storing cut grass.

[Conventional technology]

Conventionally, the mounting structure of this type of discharge cover has been
As described in Japanese Patent No. 223, the base end of the discharge cover is attached to the upper surface of the rear part of the housing, which is the main body of the lawn mower, by a hinge.

In the case of the above-mentioned Japanese Utility Model Publication No. 62-142223, in order to increase the storage (sufficiency) rate of cut grass, and to make it easy to check the storage state of the catcher (storage bag), it was stored in the catcher. An opening is provided on the upper surface of the catcher in addition to the opening on the front surface for the purpose of facilitating the discharge of the grass. Then, in order to cover the top opening with as little gap as possible, a discharge cover is provided so as to cover the top opening.

A spring is provided for biasing the discharge cover in the closing direction with respect to the upward opening rotation.

[Problems to be solved by the device]

In the above-described conventional discharge cover, the base end portion is fixed to the housing at the pivotal attachment portion (hinge portion), so when the discharge cover is set so as to cover the upper opening portion of the catcher, It is difficult to follow the shape of the formed frame, and it is difficult to make sure there is no gap between the frame and the catcher. In other words, depending on the frame shape of the catcher and the positional relationship between the frame and the hinge, a gap is likely to be created between the cover and the catcher, in which case the mowed grass blows out from the top opening through this gap and scatters out. There is inconvenience. In addition, there is a possibility that air will blow out from the gap in the hinge portion.

An object of the present invention is to prevent the scattered grass from scattering by making the discharge cover have a two-stage hinge structure so that it can easily conform to the shape of the catcher and the gap between the catcher and the housing is minimized.

[Means for Solving the Problems]

To achieve the above object, the gist of the present invention is a lawnmower having a catcher mounted so as to face a lawn discharge port formed on the rear surface of the housing of the lawn mower, and a discharge cover for covering the upper opening of the catcher. The discharge cover is formed of a mounting portion and a cover body portion, the mounting portion is pivotally attached to the upper surface of the rear portion of the housing with a first hinge, and the mounting portion and the cover body portion are connected with a second hinge to discharge the discharge. The discharge cover of a lawn mower catcher is characterized in that the cover has a two-stage hinge structure.

[Action]

In the above configuration, when the discharge cover having the two-stage hinge structure is set on the frame forming the upper opening of the catcher, only the mounting portion is pivotally attached to the housing side, and the mounting portion and the cover body portion are Hinge part (second
Since the hinge) is not fixed to the housing side and can move freely, the discharge cover can easily follow the frame shape of the catcher and its adhesion is improved,
It becomes difficult to form a gap between the two. Therefore, blowing out of the grass from between the catcher and the discharge cover is effectively prevented.

〔Example〕

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of an entire self-propelled lawn mower to which the present invention is applied.

As shown in the figure, 4 of the housing 1 that forms the body of the lawn mower
Wheels 3 for traveling are provided in the corners, and an engine 3 is mounted on the top of the housing 1. A handle 4 is obliquely provided at the rear of the housing 1, and a catcher 5 for storing cut grass is provided on the rear rear surface of the housing 1 at a grass outlet opening on the rear surface of the housing 1.
It is attached to face 12 (Fig. 4).

For this catcher 5, cut grass is the catcher 5.
As shown in FIG. 2, it is necessary to make the height H of the catcher 5 higher than that of the grass outlet 12 in order to keep the inside as tight as possible (that is, to increase the filling rate). Also,
In order to make it easier to discharge turf jammed in the catcher 5, not only the opening 11 is provided on the front surface of the catcher 5, but also the opening 13 is provided on the upper surface. In FIG. 2, S indicates the flow direction of the cut grass to the catcher 5, and θ ₂ is the flow angle thereof.

A discharge cover C that covers (covers) the upper opening 13 of the catcher 5 is pivotally mounted on the upper surface of the rear portion of the housing 1 so as to be swingable (pivotable). As shown in FIG. 1, the discharge cover C is attached to the housing 1 side via a first hinge 9 and a mounting portion 6, and is pivotally attached to the mounting portion 6 via a second hinge 10. The cover main body portion 7 is a portion that covers the upper opening. Reference numeral 8 indicates a handle provided on the cover main body 7, and the handle 8 is gripped to rotate the discharge cover C upward. Further, 5a indicates a handle provided on the catcher side.

Next, the structure of the discharge cover C will be described in detail with reference to FIGS. 3 and 4. 3 is a side sectional view showing a state in which the discharge cover C is set on the frame 5b so as to cover the upper opening 13 of the catcher 5, and FIG. 4 is a state in which the discharge cover C is opened upward. 3 is a perspective view showing the structure of the back surface and the state of attachment to the housing 1. FIG.

In these drawings, the discharge cover C is composed of a rectangular plate-shaped cover main body portion 7 and a horizontally long, substantially flat plate-shaped mounting portion 6 having a step portion 6a at the center, as described above. The end portion is pivotally attached to the upper surface of the housing 1 by a first hinge 9. That is, the base end portion of the mounting portion 6 is formed into a tubular shape 6b, and the pivot shaft 6c is fitted and inserted therein, and on the other hand, the pair of protrusion portions having the storage grooves 14a open upward on both sides of the upper surface of the housing 1. 14 is provided, and the pivot shaft 6 is provided in the storage groove 14a.
c is fitted. Then, one end from the top is covered by a holding plate 16 fixed with a bolt 15 so that the pivot shaft 6c does not come out upward. Further, a spring 6d for urging the mounting portion 6 downward in the closing direction is attached to the central portion of the pivot shaft 6c.

On the other hand, as described above, the second hinge 10 is formed between the mounting portion 6 and the cover body portion 7, and the cover body portion 7
Is rotatably (swingably) pivotally attached to the mounting portion 6. That is, the free end of the attachment portion 6 and the base end portion of the cover body portion 7 are formed into tubular shapes 6e and 7a, and the pivot shaft 7b is fitted and inserted in the tubular portions 6e and 7a, whereby the both are hingedly connected. Further, a spring 7c for urging the cover body 7 to rotate downward in the closing direction is attached to the central portion of the second hinge 10, and eventually the spring 6d and the spring 7c urge the discharge cover C downward.
It is designed to maintain close contact with the catcher 5.

The three peripheral edge portions of the cover body 7 are bent downward (back side of the cover), and the bent pieces 7A, 7B on both sides and the upper side,
7C is positioned outside the catcher 5 when the discharge cover C covers the upper opening 13 of the catcher 5. Further, triangular side covers 17 are provided in parallel in the vicinity of the bent pieces 7A and 7B on both sides which are bent substantially at right angles, and when the discharge cover C is set on the catcher 5, the bent pieces 7A, The frame 5b of the catcher 5 is fitted between the 7B and the side cover 17,
The turf is prevented from blowing out from both sides of the catcher 5. Further, the base end portion (hinge side) of the cover body portion 7 is also bent slightly inward to form the front cover portion 7D, which prevents turf from blowing out from the second hinge 10. When the catcher 5 is not attached, the discharge cover C is rotated downward so that the tip of the side cover 17 is seated on the rear surface 1A of the housing.

On the upper surface of the rear portion of the housing 1, a protruding strip 18 is formed slightly rearward from the position of the first hinge 9 for pivotally mounting the discharge cover C.
Is provided. The hook portion 5c for attaching the catcher is provided in the groove portion 19 formed between the protruding strip 18 and the protruding portion 14.
And the catcher 5 is locked to the side surface of the protrusion 18,
It is attached so as to face the grass outlet 12 formed on the housing back surface 1A. The rear portion of the mounting portion 6 of the discharge cover C is closer to the top of the protrusion 18 than the step portion 6a, and the sealing structure for preventing blowout of grass from the upper front surface of the catcher 5 is also provided here. Is formed.

When setting the discharge cover C on the catcher 5, after grasping the handle 8 provided on the upper surface of the discharge cover C and rotating upward against the spring force to open the rear surface 1A of the housing 1, the catcher 5 is released. Is attached to the housing 1 as described above. Then, the discharge cover C is rotated downward (biased by the spring force) in the closing direction to close the upper opening 13 of the catcher 5. At this time, the diagonal frames 5b on both sides of the catcher 5 are fitted between the bent pieces 7A, 7B on both sides of the discharge cover C and the side cover 17 to prevent the blowout of the grass from both sides of the catcher 5. It has become. Further, the discharge cover C has a two-stage hinge structure, and the base end portion of the cover body portion 7 (second hinge 10
Since the free movement of the part) is allowed, it is easy to conform to the shape of the diagonal frames 5b on both sides, so that the adhesion between the two is improved and a gap is less likely to be formed. Also, providing a front cover 7D part,
Since the mounting portion 6 is provided with the step portion 6a and the sealing structure is formed between the step portion 6a and the protrusion 18, the turf is prevented from being blown out from the upper front portion of the catcher 5. As described above, since the upper surface opening 13 of the catcher 5 has a structure in which gaps are not easily formed on both sides, above and front side of the catcher 5, scattering of cut grass is prevented. Further, as shown in FIG. ₂ , if the set angle θ ₁ of the discharge cover C is set to be larger than the flow angle θ ₂ of the cut grass (θ ₁ > θ ₂ ), the cut grass is directly attached to the discharge cover C. Without hitting, the grass is effectively prevented from blowing out from between the catcher 5 and the discharge cover C.

[Effect of device]

According to the present invention described above, when the discharge cover that covers the upper opening is set on the catcher, the discharge cover has a two-stage hinge structure, so that the cover body can be easily fitted to the catcher shape. Therefore, the cover body is easily adhered along the shape of the frame of the catcher, and it is difficult to form a gap between them, and it is possible to effectively prevent the cut grass from being blown out and scattered during the operation of the lawnmower. .

If the discharge cover set angle θ ₁ is set larger than the flow angle θ ₂ of the cut grass (Fig. 2), the cut grass does not directly contact the discharge cover, and the cut grass is not caught between the catcher and the discharge cover. The lawn is effectively prevented from blowing out.

[Brief description of drawings]

FIG. 1 is a perspective view of the entire lawn mower to which the present invention is applied, FIG. 2 is a schematic side view showing a relationship between a discharge cover and a catcher, and FIG. 3 is a structure in which the discharge cover covers a top opening of the catcher. FIG. 4 is a side sectional view showing a state of being set on the frame, and FIG. 4 is a perspective view showing a structure of a rear surface of the discharge cover and a state of being attached to the housing in a state where the discharge cover is opened upward. 1 ... Housing, 5 ... Catcher, C ... Discharge cover, 6 ... Mounting part, 6a ... Step part, 7 ... Cover body part, 9 ... First hinge, 10 ... Second hinge, 12 ...... Turf discharge port, 13 ... Top opening, 14 ... Projection, 17 ... Side cover, 18 ... Projection strip.

Claims (1)

[Scope of utility model registration request] 1. A lawn mower having a catcher mounted so as to face a lawn discharge port formed on a rear rear surface of a housing of a lawn mower, and a discharge cover for covering an upper opening of the catcher. A main body portion, the mounting portion is pivotally attached to the upper surface of the rear portion of the housing by a first hinge, and the mounting portion and the cover main body portion are connected by a second hinge so that the discharge cover has a two-stage hinge structure. A discharge cover for a lawn mower catcher, which is configured to have.