JPH032433Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a walk-behind engine working machine such as a tiller.

[Conventional technology]

Conventionally, walking-type engine-powered machines equipped with batteries have a mechanism that maintains a charged state by obtaining power from a charging coil only when the engine is running.

[Problem that the invention attempts to solve]

However, walk-behind engine working machines such as agricultural machines and landscaping machines are often left unused for a long time, and when they are actually used, the battery may run dry due to self-discharge.

Furthermore, in recent years, there has been a demand for smaller batteries in order to reduce weight and size, and walk-behind engine working machines are also beginning to be equipped with starter motors.

In view of these circumstances, the present invention focused on installing solar cells that can recharge the self-discharge amount of the battery, and determined the location of the solar cells to obtain more energy from the solar cells, as well as the battery device. The purpose of the present invention is to provide a walking type engine-powered working machine equipped with a solar cell, taking into account ease of assembly and ease of maintenance.

[Means for solving problems]

The configuration of the present invention that achieves the above object is characterized in that a battery is mounted on the handle device, and a solar cell for charging the battery is disposed on the upper surface of the battery.

[Effect]

The handle part of the walk-type engine-driven work machine is in a position where it is easy to collect sunlight, and since it is placed on the top of the battery, sunlight can be taken in from any direction. Therefore, the solar cell can sufficiently take in solar energy while the work machine is in use or left unused.

Furthermore, since the solar cell is disposed on the top surface of the battery, the wiring between the battery and the solar cell is shortened, and the routing of the wiring is also simplified.

〔Example〕

FIG. 1 is a perspective view of a power tiller, which is an example of a walking-type engine-powered working machine, FIG. 2 is an enlarged view of the main part thereof, and FIG. 3 is an enlarged sectional view of a battery section.

The tiller 1 has an engine 3 on the fuselage frame 2,
A starter motor 5 driven by a battery 4, which will be described later, and auxiliary equipment such as a fuel tank 6 are mounted, and wheels 8 driven by the engine 3 are mounted on the left and right sides of the fuselage frame 2 via a reduction unit 7. Be prepared.

A handle device 9 is provided at the rear of the body frame 2. This handle device 9 is
It is composed of a handle post 10 extending rearward and upward from the rear of the body frame 2, and a handle 11 provided rearward of the handle post 10 and upwardly inclined. The handle 11 is composed of a pair of left and right handle members 12 whose tips are fixed to the left and right side surfaces of the rear end of the handle post 10, respectively. A grip portion 13 is formed, and an operating lever 14 and the like are provided near the grip portion 13. When the pair of handle members 12 are viewed in plan, they are formed in a V-shape with a narrow front part and a wide rear part.

A battery 4 (see FIG. 3) is mounted on the handle 11 of the handle device 9. A battery support stand 15 that holds the battery 4 has an upper piece 16 and front and rear pieces 17 and 1 that form a reverse channel shape.
8, and the inside of the corner formed by the upper piece 16 and the rear piece 18 is placed on the horizontal rod 19 installed between the left and right handle members 12, and the stay 20 attached to the horizontal rod 19 and the rear By fixing the pieces 18 with the screws 21, the battery support stand 15 is fixed between the handle members 12. The upper piece 16 has a trapezoidal shape in plan view so as to extend between the left and right handle members 12 having a V-shape, and is inclined upwardly toward the rear along the handle member 12. Further, the rear piece 18 is longer than the front piece 17 in its height direction, and an ignition switch 22 and the like are attached to the rear piece 18.

A rectangular opening 23 of approximately the same size as the battery 4 is provided through the upper piece 16 at approximately the center thereof, and a battery holding portion 24 is formed below this opening 23 . This battery holding part 24 is a box-shaped body that is open from the top, and has a front piece 25 hanging from the upper piece 16 at the front, rear, left and right edges of the opening 23;
It is composed of a rear piece 26, a pair of side pieces, and a horizontal bottom piece 27 provided between the lower ends of these pieces. The battery 4 is inserted into the battery holding part 24 through the opening 23 of the upper piece 16 and is horizontally supported by the battery holding part 24, with the upper part protruding above the upper piece 16.

A solar cell 29 for charging the battery 4 is arranged and fixed on the upper surface 28 of the battery 4. The wiring between the solar cell 29 and the battery 4 is such that the solar cell 29 is connected within the battery 4 body between the positive and negative electrodes of the battery 4, as shown in FIG. 30 is a load connected to the battery 4. Therefore, since the solar cell 29 and the battery 4 are close to each other, the connection wiring between them can be short, and the wiring can be easily routed. Also,
When the tiller 1 is left in a dark place, it can be charged by removing the battery 4 to which the solar cell 29 is fixed from the battery support stand 15 and leaving it in a bright place.

A cover 31 is provided to cover the battery 4 to which the solar cell 29 is fixed. This cover 31 is a rectangular box with an open bottom, and is placed on the upper piece 16 of the battery support stand 15 so as to cover the upper part of the battery 4, and then the cover 31 is placed on the upper piece 16 of the battery support stand 15. It is locked by a pair of left and right locking pieces 33, and a mounting part 35 protruding from the front piece 34 is fixed to the front part of the upper piece 16 of the battery support stand 15 with screws 36. The upper piece 37 of this cover 31 is horizontal in the attached state. This cover 31 protects the solar cell 29 and battery 4 from mud, water, and the like.

An opening 38 is formed above the solar cell 29 on the upper piece 37 of the cover 31, and a condensing lens 39 is fitted into the opening 38 for efficiently supplying solar energy to the solar cell 29 below. It is being By providing the condensing lens 39 in this way, it is possible to efficiently generate electricity even on cloudy days.

As described above, since the solar cell 29 is arranged and fixed on the battery top surface 28 provided on the handle device 9, the solar cell 29 is in a position where it can easily absorb solar energy, and the solar cell 29 is placed in a position where it can easily absorb solar energy, and the solar cell 29 is placed in a position where it can easily absorb solar energy. can absorb enough solar energy. Further, since the battery 4 is provided above the handle device 9, mud and water will not splash on the condenser lens 39, and therefore sunlight will not be blocked.

In the above embodiment, the battery 4 is mounted on the handle 11 of the handle device 9, but as another example, as shown in FIG. 5, the battery holding member 40 may be mounted on one side of the handle post 10. provided, and within this battery holding member 40,
A battery with a solar cell for battery charging disposed and fixed on the upper surface is housed, and a condenser lens 39 is provided on the upper piece 41 of the battery holding member above the solar cell to efficiently supply solar energy to the solar cell. You can.

Note that, as in the above two embodiments, it is preferable to cover the battery with a protective cover and further provide a condensing lens, but the battery may be left exposed and the condensing lens may not be provided. Further, the battery mounting position is, of course, not limited to the handle device positions of the above two examples.

[Effect of idea]

As set forth above, according to the present invention, the battery is attached to the handle device and the solar cell is disposed on the top surface of the battery, making it easy to collect sunlight. Furthermore, since the battery to which the solar cell is attached is attached to the handle device, the battery and solar cell can be placed in a high place where they are not exposed to mud or water.
Also, since the solar cell is attached to the battery,
It can also be charged by sunlight with the battery removed. In addition, since the solar cells are attached to the battery, the wiring between the solar cells and the battery,
Assembly to work equipment, maintenance, etc. become easier.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a perspective view of a power cultivator that is an example of a walking-type engine-powered working machine, Fig. 2 is an enlarged view of the main part thereof, and Fig. 3 is an enlarged sectional view of the battery part. Fig. 4 is a wiring diagram of a solar cell and a battery, and Fig. 5 is an enlarged perspective view of the main parts of the power cultivator with the battery mounting position changed. 1 is a tiller, 4 is a battery, 9 is a handle device, and 29 is a solar cell.

Claims (1)

[Scope of utility model registration request] A walking type engine working machine characterized by a battery mounted on a handle device and a solar cell for charging the battery arranged on the top surface of the battery.