JPH065698Y2 - Frame structure of riding lawn mower - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a frame structure of a riding lawn mower in which an engine is mounted on a front portion of a machine body in a state where an output shaft projects below a machine body frame.

[Conventional technology]

In the riding lawn mower, a body frame has conventionally been constructed as shown in FIG. In other words, the engine mounting part
(11) is integrally molded with the deck plate (8) for the control section to form the aircraft frame (A), and the output of the engine (3) is output to the engine mounting section (11) of this aircraft frame (A). A hole (14) for inserting the shaft (3a) was formed.

[Problems to be solved by the invention]

Conventionally, the engine mounting part (11) of the deck frame (8)
Strength between deck and front wheel support member (9) and deck frame (8)
In order to secure its own strength, widen the width of the engine mounting part (11) of the aircraft frame (A), and
The wall thickness of (8) had to be increased, and the weight of the deck plate itself increased, making the entire aircraft heavy.

An object of the present invention is to make it possible to reduce the weight of the frame structure.

[Means for solving problems]

The characteristic structure of the frame structure of the riding lawn mower according to the present invention is that a deck plate for a control section is erected and connected between the pair of left and right main frames in the longitudinal direction of the main frame, and the deck plates of the pair of main frames are connected to each other. A front wheel support member is erected and connected to a main frame front end side portion projecting to the front side of the machine body, and a connection frame is provided for connecting the lateral end portion of the deck plate and the main frame front end side portion, and the main frame front end side portion is provided. The main frame is provided with an engine mounting part for mounting the engine in a state where the output shaft of the engine is inserted between the main frames, and the rear side of the fuselage is projected from the deck plates of the pair of main frames. A pair of front and rear subframes that connect the rear end side parts are provided, and the battery There the mounting member in that bridged connected to a pair of the sub-frame, its action and effects are as follows.

[Action]

As described above, the frame structure is a frame structure composed of a pair of left and right mainframes in the front-rear direction of the body, front wheel support members, and a connecting frame. Can be secured.

Further, by connecting the battery mounting member to the pair of front and rear subframes, the battery mounting member serves as a member for connecting the subframe so as not to easily deform.

[Effect of device]

Therefore, the structure of the frame and the fact that the battery mounting member can also be used as a reinforcing member for the sub-frame make it possible to reduce the weight of the frame structure, and the lawnmower that is as light as possible and easy to handle. It is now configurable.

〔Example〕

As shown in FIG. 4, an engine (3) and a steering handle are mounted on a body frame (A) on which a pair of left and right front wheels (1), (1) and a pair of left and right rear wheels (2), (2) are mounted. (4), a mower (6) is mounted between the front and rear wheels of a traveling machine including a driver's seat (5), etc., to form a riding lawn mower.

As shown in FIG. 1, the fuselage frame (A) connects a pair of left and right mainframes (7A) and (7B) in the longitudinal direction of the fuselage and intermediate portions of the mainframes (7A) and (7B). In order to do so, the deck plate (8) for the control section installed between the main frames (7A) and (7B), the main of the main frames (7A) and (7B) protruding from the deck plate (8) to the front side of the aircraft A front wheel support member installed between the front end portions (7a), (7b) of the main frame to connect the front end portions (7a), (7b) of the frame
(9), a connecting frame that connects both lateral ends of the deck plate (8) and the front end side portions (7a) and (7b) of the main frame
It is configured in a framework provided with (10A), (10B) and the like.

And, the engine (3) is formed between the main frame front end side portions (7a), (7b) in the engine mounting portion (11) provided on the main frame front end side portions (7a), (7b). It is mounted in a state where the output shaft (3a) of the engine (3) is inserted into the space.

As shown in FIG. 2, the main frame rear end portions (7c) and (7d) of the main frames (7A) and (7B) projecting from the deck plate (8) to the rear of the vehicle body are connected to a pair of front and rear sub-frames. Connect them with the frames (12A) and (12B), and attach the battery (15) mounting member (1
3) is installed and connected. That is, one end of which is connected to the rear end side portion (7d) of the main frame (7A) on the right side
A support member (16A), a second support member (16B) having an upper end connected to the front side sub-frame (12A), and one end connected to a rear end side portion (7d) of the right main frame (7A). 3rd
A support member (17A), a fourth support member (17B) having an upper end connected to the rear subframe (12B), and the first support member (16)
A) and the second support member (16B) are connected to the front end side, and the third support member (17A) and the fourth support member (17B) are connected to the rear end side. Each of the battery mounting plates (13A) constitutes a battery mounting member (13).

It should be noted that maintenance such as inspection of the battery (15) and replenishment of battery liquid can be performed through an inspection hole (18A) formed in the machine body cover (18) as shown in FIG.

[Brief description of drawings]

The drawings show an embodiment of a frame structure of a riding lawn mower according to the present invention. FIG. 1 is a partially cutaway perspective view of the frame structure, FIG. 2 is a perspective view of a mounting portion of a battery mounting member, and FIG. FIG. 4 is a perspective view showing a battery take-out portion, and FIG. 4 is a side view of a riding type lawnmower. FIG. 5 is a partially cutaway perspective view showing a conventional example of a frame structure. (3) …… Engine, (3a) …… Output shaft, (7A), (7B) …… Main frame, (7a), (7b) …… Front end of main frame, (7c), (7d)… … Main frame rear end, (8) ……
Deck plate, (9) …… front wheel support member, (11) …… engine mounting part, (12A), (12B) …… subframe, (13) ……
Battery mounting member.

Claims (1)

[Scope of utility model registration request] 1. A pair of left and right mainframes in the longitudinal direction of the body
A deck plate (8) for the control section is erected and connected to the middle part of (7A), (7B), and it projects from the deck plates (8) of the pair of main frames (7A), (7B) to the front side of the aircraft. The front wheel support member (9) is erected and connected to the main frame front end portions (7a), (7b), and the lateral end portion of the deck plate (8) and the main frame front end portions (7a), (7b) are connected. Provided with connecting frames (10A) and (10B) for connecting and, in a state where the output shaft (3a) of the engine (3) is inserted between the main frames at the main frame front end side portions (7a) and (7b). The engine mounting portion (11) for mounting the engine (3) is provided on the front end side portion of the main frame.
(7a), (7b), a pair of the main frame (7A),
A pair of front and rear subframes (12A) and (12B) that connect the rear end side parts (7c) and (7d) of the main frame protruding from the deck plate (8) of (7B) to the rear of the aircraft are provided, and the battery is mounted. The member (13) is a pair of the sub-frames (12A), (12
The frame structure of the riding lawn mower that is erected and connected to B).