JPH0522297Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field of the Invention) The present invention relates to a shoulder-type sprayer, in which the sloped side wall of a trapezoidal chemical liquid tank that comes into contact with the waist of the human body has a recess depth that increases from the top to the bottom. It has a concave surface.

(Background of the invention) Sprayers used for gardening, etc. are generally constructed with a chemical tank attached to the bottom of a main body case that houses a pump, pump drive motor, etc., and can be carried over the shoulder with a shoulder strap. It is designed to hold a spray rod and spray the chemical solution. As this type of sprayer, one is known in which a chemical tank 52 at the bottom of the main body case 51 is formed into a trapezoidal shape, as shown in FIG. 5a, in order to ensure stability when placed on a floor or the like. There is. However, when this device is used with the shoulder strap 53 worn over the shoulder, the sloped side wall of the chemical solution tank 52 hits the waist, resulting in the entire body being tilted as shown in the figure, resulting in poor center of gravity balance, and Due to poor adhesion, there were problems such as the chemical solution tending to wander unnecessarily when being sprayed. Further, as shown in FIG.
It is known that the power supply cord 56 is formed in a protruding manner, and the attachment portion thereof is used as a winding storage portion for the power supply cord 56. However, although this device has the advantage of good adhesion to the waist, the chemical solution tank 54 is rectangular, so it has poor stability when placed on a floor surface 57, etc. If it is less,
The center of gravity rises toward the main body case 51 in which heavy motors, pumps, etc. are housed, resulting in increasingly unstable stability.Furthermore, since the waist rest 55 is formed to protrude, molding and manufacturing is troublesome. In addition, there is a problem that the waist rest portion 55 tends to get in the way during transportation or storage.

(Purpose of the invention) The present invention has been developed in view of the above circumstances, and allows the chemical solution tank to be firmly attached to the waist while being carried over the shoulder using a shoulder strap, and the sprayer to be held in an upright position. Another object of the present invention is to provide a sprayer that is highly safe when placed on the floor or the like.

(Summary of the invention) In the invention, the chemical tank attached to the lower part of the main body case is formed into a trapezoidal shape. The inclined side wall surface that contacts the waist of the human body is a concave surface, and the depth of the concavity increases from the top to the bottom. By configuring the shape of the chemical liquid tank in this way, when carried over the shoulder with a shoulder belt, the concave surface can be brought into close contact with the waist, allowing the sprayer to stand straight upright, and even on the floor. Safety can be ensured when placed on.

(Example) Next, an example of the present invention will be described with reference to the drawings.

Fig. 1 is a perspective view of the sprayer, Fig. 2 is an internal plan view, and Fig. 3 is a sectional view. It is installed and configured. 9, 9 are recessed parts in which the clamp parts 3, 3 are arranged. The main body case 1 is divided into an upper case 1a and a lower case 1b.
a and 1b are connected by a boss 4. Lower case 1
A support plate 5 is formed on b, and a pump 6, a pump drive motor 7, a power supply unit 8 as a power supply section, etc. are arranged on the support plate 5. This power supply unit 8 consists of a cylindrical case 10 and power batteries 11, 11 housed therein, and is located between a support frame 13 of the boss 4 rising from the support plate 5 and a support frame 14 of the pump 6 and motor 7. It is attached removably. 12 is a terminal spring.

17 is a grip part formed on the upper part of the upper case 1a, 18 is a switch part, 19 and 19 are attachment parts for the shoulder belt 31, 20 is a spray rod, and 21 is a water supply tube 2 that connects the pump 6 and the spray rod 20.
2 and 24 connections. When this sprayer is worn on the shoulder with the shoulder belt 31 and the switch part 18 is turned on with one hand, the pump 6 is driven and the tank 2 is turned on.
The chemical liquid inside is sucked up from the pump 6 to a vertically installed suction pipe 30, and is ejected from a nozzle 20a at the tip of a spray rod 20 held by the other hand. The connecting portion 21 includes a standpipe portion 26 to which the water supply tube 22 is attached, a mounting wall portion 27 that is sandwiched from above and below by the upper case 1a and the lower case 1b, and the like. Reference numeral 28 denotes a chemical solution supply section bulged on the side of the tank 2, and 29 is a cap thereof.

In FIG. 1, the clamp portion 3 consists of a substantially plate-shaped engaging member 31 and a pair of engaging rods 321, 321 rotatably attached to both sides of the upper part of the engaging member 31.
The engaging member 31 detachably engages with the engaging portion 15 provided in a protruding manner at the upper portion of the recessed portion 9 . Recesses 33, 33 are provided on the left and right sides of the wall of the lower case 1b with an interval T between them.
The upper end portions of the engaging rods 321, 321 are rotatably engaged with the inner wall surfaces of the recessed portions 33, 33.

The tank 2 is formed into a trapezoidal shape, and the inclined side wall surface that comes into contact with the waist of the human body when worn on the shoulder is a concave surface 2a, and the concave depth D of the concave surface 2a increases from the top to the bottom. It gradually deepens. (See especially Figure 3). If such a recessed surface 2a is formed on the side wall slope of the trapezoidal tank 2,
As shown in FIG. 4, when the shoulder belt 31 is worn over the shoulder and the chemical solution is sprayed, the recessed surface 2a tightly contacts the lower back, and the recess depth D becomes deeper from the upper part to the lower part. This allows the sprayer to be held in an upright position.

(Effects of the invention) As explained above, the invention forms the chemical tank 2 attached to the lower part of the main body case 1 into a trapezoidal shape, and the recess depth D of the side wall slope becomes deeper from the upper part to the lower part. Since the concave surface 2a is
When worn on the shoulder with the shoulder strap 31, the recessed surface 2a can be brought into close contact with the waist and the sprayer can be held upright. Furthermore, it has excellent stability when placed on a floor surface, etc., and has an extremely simple shape and structure, eliminating the need for protruding waist rests 55 as in the above-mentioned conventional devices. has.

[Brief explanation of the drawing]

The figure shows an embodiment of the present invention.
The figure is a perspective view of the sprayer, the second figure is an internal plan view, and the third figure is a perspective view of the sprayer.
The figure is a sectional view, FIG. 4 is a side view of the device in use, and FIGS. 5a and 5b are side views of the conventional device. 1... Main body case, 2... Chemical solution tank, 2a...
...Concave surface, 6...Pump, 7...Pump drive motor, 20...Spray rod, 31...Shoulder belt, D...Concave depth.

Claims (1)

[Scope of utility model registration request] It consists of a main body case 1 in which a pump 6 and a pump drive motor 7 are disposed, and a chemical tank 2 attached to the lower part of the main body case 1, and is carried over the shoulder with a shoulder strap 31 and connected to the pump 6. In this sprayer, the chemical liquid tank 2 is formed into a trapezoidal shape, and the sloped side wall of the chemical liquid tank 2 is formed as a concave surface 2a, and the concave depth D is set from the top. A shoulder-type sprayer that is characterized by being deeper toward the bottom.