JPH0632847Y2 - Power spreader - Google Patents

Description

[Detailed Description of the Invention] (Industrial application field) The present invention drives a pump by an engine on a pedestal carried by a worker through a backpack band to spray the drug in the drug tank from a nozzle tube. Backpack type power spreader used as above.

More specifically, the present invention relates to a power spreader in which not only the engine can be manually started by a recoil starter, but also the engine can be automatically started by a starting motor (cell starter).

(Prior Art) Generally, in this type of backpack type power spreader, it is necessary to support a battery for supplying the starting power to the above-mentioned cell starter on a pedestal, and this battery. In order to easily remove the battery from the cradle and charge it as needed, it is necessary to interpose a connector in the middle of an electric cord for electrically connecting the battery and the cell starter.

(Problems to be solved by the invention) In the conventional power spraying machine having the above-mentioned configuration, a part of the mist-like chemical sprayed from the nozzle pipe during the spraying work is also affected by the wind, and the machine body and the worker are affected. It violently stays around, and the atomized drug adheres to the battery and connector. As a result, not only the battery is contaminated, but also the cause of failure.Especially when the above-mentioned chemicals are in a liquid state, an unexpected electric shock is given to the worker due to a short circuit, or the power supply to the cell starter fails. There were problems such as being shut off and causing troubles such as engine stalls, and the charging cycle being very short because the battery could not be charged.

(Means for Solving the Problems) The present invention was made to solve the above-mentioned problems, in which a chemical tank, a pump and an engine are mounted on a pedestal composed of a bottom plate and a back support plate. , In a backpack type power spreader in which a backpack band is provided on the backrest plate,
The bottom plate of the pedestal and the back support plate are integrally molded by blow molding using a synthetic resin, and a recess opening to the backpack band mounting side is simultaneously molded in the back support plate, while the starting motor for the engine is also formed. Is characterized in that it can be electrically connected to a battery via a connector, and that the battery and the connector are removably accommodated in the recess.

(Operation) According to the power spreader having the above configuration, when the worker carries the cradle through the backpack band, the opening surface of the recess containing the battery and the connector is closed by the back of the worker. . Therefore, during the back-spreading work, the battery and the connector are dressed in an almost sealed space by the back support plate of the pedestal and the operator's back, and the mist-like chemicals standing around the battery during the spraying work are stored in the battery. The risk of sticking to the connector or connector is prevented. In addition, by lowering the cradle from the back, the battery can be easily taken out from the opening surface of the recess and used for charging, etc.
The pedestal is formed in one shot by blow molding using a synthetic resin, and at the same time, a recess for accommodating a battery and a connector is formed in the back support plate of the pedestal. Can be simplified.

Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

Fig. 1 is an overall side view of the backpack type power spreader, and Fig. 2 is a rear view thereof. In Fig. 1, (1) is a cradle, and this cradle (1) is shown in Fig. 3. As clearly indicated, the hinge part is in the middle part
(11) is provided, and the bottom plate (12) that can be folded in two, and the bottom plate
The back support plate (13) and the rising plate (14) provided upright on the opposite edges of (12) form a U-shape. In detail, the pedestal
(1) is a synthetic resin molded product integrally formed in a hollow shape by blow molding in a state in which it is bent in a half-fold shape of about 80 to 120 ° at the intermediate hinge part (11) of the bottom plate (12) After the forming, the bottom plate (12) is returned to a straight plate-like bent state, and the connecting plate is arranged so as to straddle both sides of the hinge part (11).
(15) is arranged, and the connecting plate (15) is connected and fixed to the bottom plate (12) via bolts and nuts.
Although the pedestal (1) is formed in a U shape in this embodiment, it may be formed in an appropriate shape such as an L shape.

In FIG. 1.2, (2) is a back support plate in the above-mentioned pedestal (1)
The backpack band attached to the outer surface of (13), and (3) is the sprayer body. This sprayer body (3) consists of an engine (17) and a pump (16) mounted and fixed on the bottom plate (12) of the pedestal, and the engine (17) includes a recoil starter (18) and a starter. And a starter motor (not shown).

(4) is a drug tank, this drug tank (4) is arranged in the upper part of the sprayer body (3), the back support plate (13) and the rising plate (14) in the pedestal (1) and In particular, the rising plate (14) is extended to the back of the tank (4) and is supported by the bolts and nuts on the back of the tank (4). While fixed by connecting or fixing via an adhesive, the front part of the tank (4) is bulged downward,
The bulging portion (4a) is received and supported by the upper end portion of the back support plate (13), and is fixed by bonding with an adhesive or by bolts and nuts.

(19) is a connection hose that connects the lower portion of the tank (4), for example, the bulging portion (4a) and the suction port of the pump (16),
Further, (20) is connected and communicated with the discharge port of the pump (16),
This is a spray nozzle tube extending so as to be swingable toward the front of the cradle (1).

In the power spreader having the above-mentioned structure, the backrest plate (13) of the pedestal (1) is provided on the side surface of the backpack band (2) where the recess (5) is released toward the front as clearly shown in FIGS. ) Is formed, and a battery (6) and a rectifier (7) electrically connected to the starting motor of the engine (17) and these batteries (6) and rectifier (7) are formed in the recess (5). The electric cords (8) for connecting to the starting motor are housed so that the connectors (8a) and (8b) interposed in the middle of the electric cords can be taken out.

In the figure, (9) is an opening / closing lid provided at the opening of the recess (5), and the opening / closing lid (9) may be a very simple one and may be omitted in some cases.

In the power spreader configured as described above, the backpack band (2)
Then, the engine (17) is started by the starting motor (cell starter) and the pump
By driving (16), the medicine in the tank (4) is sprayed through the connection hose (18) → pump (16) → nozzle pipe (19) to perform a predetermined spraying operation.

At this time, the battery (6), rectifier (7), connector (8
a) and (8b) are housed in a recess (5) formed in the back support plate (13) of the pedestal (1), and the front opening of this recess (5) faces the operator's back. However, since the lid (9) will keep the blockage, there is no possibility that the atomized drug trapped around the battery (6) and the connectors (8a) (8b) sprinkle and adhere to the battery (6). Also the battery (6) and rectifier (7),
No bad contact, electric leakage, or short circuit will occur in the connectors (8a), (8b).

After the spraying work as described above, remove the backpack band (2) from the shoulder and lower it on the ground, open the lid (9) provided in the front opening of the recess (5), and connect the connector (8a). Remove the internal battery (6) to remove the battery (6)
It is possible to easily check and charge the battery.

(Effect of the Invention) As described above, the power spreader according to the present invention allows the engine of the main body of the spreader to be easily started by operating the push button switch. The connector for connecting / disconnecting the electric cord, which is necessary for easy removal from the pedestal, is housed in the recess formed in the backing plate of the pedestal, so that a special structure and member can be provided. The battery and connector can be stored and held in an almost airtight space without using them, which ensures that mist-like chemicals will not adhere to the battery or connector even on a windy day. it can. Therefore, it is possible to avoid the occurrence of a short circuit during the spraying work and the occurrence of troubles such as the engine, and it is also possible to extend the charging cycle of the battery and improve the durability.

Moreover, the pedestal is formed by blow molding using a synthetic resin in one shot, and at the same time, the recess for accommodating the battery and the connector is formed in the backing plate of the pedestal. There is no need to secure a special place for accommodating or to provide a special structure for accommodating, and the structure and manufacturing can be simplified as a whole.

[Brief description of drawings]

FIG. 1 is an overall side view showing an embodiment of the present invention, FIG. 2 is a front view of the same, FIG. 3 is an enlarged partial cutaway perspective view of an essential part, and FIG. 4 is an enlarged front view of an essential part. FIG. 5 is a sectional view taken along line IV-IV in FIG. (1) …… pedestal, (2) …… backpack band, (4) …… drug tank, (5) …… recess, (6) …… battery, (8a) (8b) …… connector (12) …… Bottom plate, (13) …… Back plate, (16) …… Pump, (17) …… Engine,

Claims (1)

[Scope of utility model registration request] 1. A backpack-type power spreader in which a drug tank, a pump, and an engine are mounted on a cradle composed of a bottom plate and a backrest plate, and a backpack band is provided on the backrest plate. The bottom plate and the back support plate are integrally molded by blow molding using a synthetic resin, and a recess opening to the back strap mounting side is simultaneously formed in the back support plate, while the starting motor of the engine is used as a battery. A power spreader characterized by being electrically connectable via a connector and accommodating the battery and the connector in the recess so as to be removable.