JPS63105607A - Lawn mower - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to improvements in lawn mowers.

[Conventional technology]

In this type of lawn mower, the grass collecting container is placed on the machine frame side, but in the past, the grass collecting container was placed upright from the machine frame, and a pair of left and right grass collecting containers were installed at both ends of the upper part of the single-shaped vibe frame. Protrusions are provided to support the respective containers, and the outer peripheral surface of the inverted U-shaped pipe frame is sandwiched between an engagement hole into which the protrusions can be inserted from a cap provided at the periphery of the upper end opening of the grass collection container. A bracket equipped with a posture regulating mechanism was extended (Utility Model Application Publication No. 60-94037 t14).

[Problem that the invention seeks to solve]

In such a conventional structure, the support load for the grass collecting container acts on one point of the cap via the bracket, so the cap that supports the grass collecting container body is in the 1st and 1st supported state. As more and more grass clippings were used for collecting grass, they became deformed, and the grass clippings sometimes leaked due to the gap between the container and the cover.

However, there is a way to make the gold strong enough to prevent deformation, but this would force the 11-karat gold plate to be large, and the brackets and brackets that correspond to this rTI gold would have to be large. 1-1. etc. will inevitably become strong and large (this was the trend).

An object of the present invention is to provide a grass collecting container that can suppress deformation of the grass collecting container mouthpiece by changing the support structure for the grass collecting container without increasing the strength of the members.

[Means for solving problems]

The characteristic structure of the present invention is: (1) The cap of the grass collection container is connected to the two parts of the support frame erected from the aircraft frame by engagement of a protrusion provided on one of these parts and a retaining hole provided on the other. (2) A supporting part for placing and supporting the periphery of the upper end opening of the grass collecting container is provided in series on the upper part of the supporting frame, and the effects thereof are as follows.

[For production]

The characteristic configuration (2) makes it possible to regulate the position of the grass collection container with respect to the support frame, and the characteristic configuration (2) also allows the support portion to control the position of the grass collection container (8), as shown in FIG. 4, compared to the conventional configuration. Since a wide range of the periphery of the upper end opening can be supported, the grass collection container (8) will not become cantilevered by being supported at one point, so the strength of the cap (88) itself may be reduced.

〔Effect of the invention〕

The position regulating device (the projecting piece and the engagement hole) and the support structure of the grass collection container (the support part of the support frame) are configured as separate parts;
By adopting a structure that supports the periphery of the upper end opening as a support structure for the support container of the grass collecting container, deformation can be suppressed without increasing the strength (larger size) of the cap itself. Phenomena such as leakage of grass clippings can also be suppressed.

〔Example〕

As shown in Part 8, a riding lawn mower is equipped with a downward output shaft engine (1) at the front of the machine, a transmission case (2) at the rear of the machine, and a driving operation part (3) between them. Between the wheels (5) and (6), there is a grass-collecting container (8) that serves as a working axotiment with a grass clippings from the mower (7) connected to the rear end of the machine.
), an external grass collection duct (9) is installed to guide the grass.

Next, the frame structure of the traveling aircraft will be explained. 1st
As shown in Figures 1 and 2, as well as Figures 6 and 7, a pair of left and right pipe main frames (
11), (11) are extended to the rear of the fuselage, and their extended ends are cut open at the rear opening @ (11M), (11
4).

A flat deck (12) made of sheet metal is installed on the upper surface of the left and right main frames (11), (11), and a through hole (13) for the steering operation shaft, etc. is provided on the engine frame side of this deck (12). A steering mechanism support frame (14) is erected. A pair of front and rear block-shaped frames (15), (15) are formed upright at the rear of the main frames (11), (11), and are attached to the driver's seat (16) support frame along with the fender for the rear wheels (6). It is configured. On the side of the driver's seat (16) support frame (15), a locking and fixing frame (18) for the mowing height adjustment lever (17) of the mower (7) is installed. A swing arm (21) operating shaft (19) is installed to link the operation of the swing arm (21) with the motor control (7). Moreover, the main frame (11), (
11) At the rear end, a simple trailer hitch (20) is provided, which is made by welding and assembling plate materials into a channel shape.
A frame (22) for attaching the mission case (2) is provided from this hitch (20) toward the front side of the fuselage.

Next, the power transmission JIl construction 1:1 at Moryo (7). , a pair of left and right blade shafts (24) via a belt (43) from an input pulley shaft (23) which is transmitted to the engine (1) and held.
, (2/I). In the figure (25) is a tension pulley.

The grass collector 1-(9) will be explained. Figures 1 and 2
As shown in the figure, the grass duct 1-(9) bypasses the lateral outside of the right (Q+1) rear wheel (6) and extends from the mower (7) to the grass collection container (8), Front duct I-(9A) connected to (7), rear duct (9C) connected to grass collection container (8), and intermediate duct I made of transparent resin that connects both these ducts (9A) and (9C). - Consists of ('l).

You can check the general feeding status of the cut grass using this transparent duct (911). The rear end of the rear duct (9C) is fitted onto the intermediate duct at its front end (9B) so as to be able to slide relative to each other in the axial direction, allowing vertical movement of the mower (7) as the mowing height is adjusted. This provides flexibility. The front end of the intermediate duct (9B) fits over the rear end of the front duct 119A), and is fixed to the front duct (98) with a rubber hand-type stopper (26). Further, the front duct (98) is formed so that its cross section changes from a circle to a square shape as it approaches the mole (7).
Square outlet (27A) formed in the exterior case (27) of
It is connected to the motor (7) in a state where it is fitted onto the outside. A locking pin (28) protruding outward from one of the walls of the outlet (27A) is fixed to this connecting portion, and a locking pin (28) is fixed to the front duct l-(9A).
It is configured to be inserted into an insertion hole (29) formed in the side wall of the. On the other hand, the front duct 1-
(9A) and the mower side outlet (27A),
Attach the connector part that becomes a hinge-shaped stopper 30) in the connected state, and connect the front duct l-(9A) to the outlet (2).
7A), the stopper (30) is attached, and by inserting the L-shaped pin (4) from above, the front duct (9A) and the outer case (27) can be connected. Complete. As shown in Figure 5, this front duct)
(9A) into the outer case (27) is to first engage the insertion hole (29) on the front duct (9A) side with the locking pin (28). Section 11
This is a method of horizontally rotating the nip pin (28) as a branch and fastening the stopper (30) with the 17-type pin (4).

Next, the mounting structure of the grass collection container (8) will be explained.

As shown in FIGS. 1 to 4, a pipe support frame (31) as a connecting member that can be inserted into the rear open end (11^) of the main frame is attached to the main frame (11).
In a state where they are connected to each other, they are configured to be detachable by means of an engagement pin (32) as a fixing means that passes through the U, and the upper opening end (31/l) of this support frame (31) In contrast, a pair of left and right grass collection containers (described later)
8) and a fixed frame (33) serving as a support section for mounting and supporting (8) are connected and fixed. In this connecting and fixing structure, a pair of left and right pipe engagement parts (33a) protruding downward from a fixed frame (33) are fitted into the upper open end (31A) of the frame (31). This fixed frame (33) is a U-shaped pipe frame (33A) in plan view.
and the center channel frame (33B), approximately E in plan view.
It is shaped like a letter and extends rearward in a cantilevered manner. With respect to this fixed frame (33), a cap (88) provided at the periphery of the upper end opening of the upward-opening grass collecting container (8) connects the vibe frame (33A) and the channel frame (3
The grass collecting container (8) is set so as to be placed and abutted from above over the entire length of the container (8). A plate-like member (
34) is protruded through the grass collection bag part, and
Pipe frame (33A) of the fixed frame (33)
A projecting piece (33b) is provided to protrude from the part, and when the grass collecting container (8) is placed on the fixed frame (33), the projecting piece (33b) is penetrated into the engagement hole (34a), and the grass collecting container (8) is position regulated.

Next, the opening/closing covers (35) for the left and right grass collecting containers (8), (8) will be explained. This opening/closing cover (35
A pair of left and right brackets (36), (36) having horizontal engagement holes (36a) bored in the lower flange (35A) on the side of the support frame (31) of the support frame (31) of the (31), horizontally with the headed pin (
A plate piece (37) on which the pin (37a) is fixed and protruded is provided, and by fitting and fixing the pin (37a) into the engagement hole (36a), the opening/closing cover (35) is fixed to the pin (37a).
a) It can swing up and down around it. Here, open/close cover (
By placing the pin (35) on the fixed frame (33) or the metal fittings of the grass collection container (8) and sliding it horizontally, the pin (
37a) is fitted into the engagement hole (36a), and the opening/closing cover (
35) can be installed in a simple manner. On the other hand, a hook (38) is provided at the end of the opening/closing cover (35) opposite to the side where the bracket (36) is present.
．． The market money V ((39) with 1 fixed is the hook (3)
8), and is configured to maintain the closed position of the opening/closing cover (35). The opening/closing cover (35) covers the negative space of the Hayabusa IIl++ container (8), ()() in a continuous state, and extends from the upper space to the rear space in the internal space. l! im Zuro tJI Wind Route (A)
A net-like structure 40) is stretched to form a turf, and when the mown grass is full or when a garbage storage bag with poor ventilation is used in the grass collection container (8), the net-like structure (40) The air is discharged from the opening (B) at the rear lower end along the inner surface of the open/close cover (35). However, if the grass storage bag is not used, the air will be exhausted from the grass collection bag.

Next, open/close the rear duct (9C) of the grass collection duct (
35) will be described in detail. Fixed frame (33)
A plate-shaped pedestal (41) having an upwardly opening recess (41a) is provided on the pipe frame (33A), and the pedestal (41) is provided on the side surface of the opening/closing cover (35).
A recess (35a) opening downward is provided in the corresponding part of 1), and the opening formed by the recess (41a) of the pedestal (41) and the recess (35a) of the cover (35) in the closed position, Grass collection rear duct) (9C) is inserted, and an engagement groove (4) is inserted on the corresponding outer peripheral surface of the rear duct (9C).
A protrusion-type annular engagement portion (42) formed with #2a) is provided, and the plate-shaped tip of the pedestal (41) formed with the pedestal-side recessed portion (41a) engages with this engagement #(42a). The rear duct (9C) is attached and fixed in a state in which it is in contact with the inner edges of both the recesses (41a) and (35a).

[Another example]

(2) The support part (33) is limited to a fixed frame as described above, and may be a support frame integrally extended.

O The above embodiment may be applied to a walk-behind lawn mower.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of the drawing]

The drawings show an embodiment of the lawn mower according to the present invention, FIG. 1 is a side view showing the arrangement of the grass collection duct, the QJ grass container, and the machine body, and FIG. 2 is the grass collection duct, the grass collection container, and A plan view showing the arrangement of the machine body, Fig. 3 is a longitudinal sectional front view showing the connection part between the grass collection duct and the opening/closing cover/cradle, and Fig. 4 is a perspective view showing the attachment structure of the grass collection container to the machine body. Figure 5 is a plan view showing the posture of the joint between the mower and the grass collection container, Figure 6 is a plan view showing the frame structure of the traveling machine, Figure 7 is a rear view showing the frame structure of the traveling machine, and Figure 8 is an overall side view. (8)... Grass collection container, (88)... Cap, (31)... Support frame, (33)...
...Support part, (33b) ...Protrusion piece, (34
a>...Retention hole.

Claims (1)

[Claims] A cap (8) is provided on the upper part of the support frame (31) erected from the aircraft frame, and is provided around the upper opening of the grass collection container (8).
A) are connected by engagement between the protrusion (33b) provided on one of these and the engagement hole (34a) provided on the other, and the grass collection container (8) is connected to the upper part of the support frame (31). ) Support part (33) that supports the upper end opening periphery of the
A lawnmower connected to