JPS6242773Y2 - - Google Patents

Description

[Detailed description of the device] This device replaces the conventional method in which the spray head is changed to reach or diffuse by loosening or tightening the tightening bag nut when spraying the drug using a combination of the drug solution and pressurized air. The present invention relates to a mist jet head for a power spreader that can be extremely easily changed into a delivery and diffusion mode by attaching a cylindrical body made of a bendable material to the inside of the opening at the tip.

For example, as shown in Figure 1, the mist head of a power spreader that has been widely used in the past includes a curved pipe, a bellows pipe, a flexible pipe, and a direct injection pipe (none of which are shown) connected to the outlet of the blower. A mist jet head main body 2 is attached to the tip of the curved jet pipe 1 connected through the pipe, and a jet head collar 3 with a long hole h and a flared cross section is fitted inside the end of the mist jet head main body 2. While attaching the tightening bag nut 4 via the tightening ring r, the locking screw 5 is inserted into both the mist jet head main body 2 and the jet head collar 3, and is integrated with the mist jet head main body 2 and installed inside the jet head collar 3. A metering pot 7 is attached to one side of the nozzle body 6, which is set to be openable and closable, and the tip of a liquid feeding pipe 8 connected to a chemical solution tank (not shown) is fitted into the bulge e. . When the jet collar 3 is at the solid line position, the chemical solution is dispersed over a wide area near the mist jet, resulting in a so-called diffusion jet, and the tightening bag nut 4 is loosened to move the jet head collar 3 to the chain line position. When the mist is pulled out to a point far away, the chemical liquid is dispersed from the mist jet to a point far away, resulting in a so-called reaching jet. As mentioned above, by changing the set position of the jet head collar 3, it has two functions of diffusion and reaching.However, during actual spraying work, the operation of holding the jet head collar 3 at the set position requires the above-mentioned operation. 4. Tighten the bag nuts like this. The tightening ring R requires a part of the locking screw 5, and a long hole h is bored in the structure of the jet head collar 3 itself, and the cylindrical part C is not the same length as a whole, and the locking screw 5 is The side is long and the side of the metering tip 7 is short, so it takes time and effort to manufacture the jet head collar 3 itself. Therefore, in order to form a diffusion or reaching jet head, it is necessary to spend time and parts that the general user would not expect. Therefore, it is difficult to avoid the regret that it is not possible to sufficiently reduce the price and weight.
Therefore, this idea corrected the structural difficulties of the large number of parts and the jet collar as mentioned above, as well as the complexity of changing the form of diffusion and arrival, and added a bendable soft material inside the conventional wide-spread jet collar. The purpose of this project is to provide a mist head for a power spreader that allows for one-touch changes in the form of attachment, diffusion, and arrival of the mist.
It is made by fitting and fixing the rear part of a cylindrical body made of a bendable material.

An embodiment of this invention will be described below with reference to FIG. 3. The front end of a jet collar A having the same form as the jet collar 3 in FIG. 1 (the right side is the front and the left side is the rear in FIG. The rear end of the cylindrical fitting part 12 at the rear of the widened part 11 is formed into a reduced diameter part 13 through a small stepped part s, and this reduced diameter part 13 is connected to the mist nozzle main body 14 at the rear. At the same time, the rear end of a cylindrical body Z made of a soft and easily bendable material such as rubber, whose rear end is in contact with the stepped part s, is attached to the inner peripheral edge of the cylindrical part 12 with adhesive. Inserted and fixed to form an integral structure. Furthermore, inside this cylindrical body Z, a nozzle body 15 having a structure different from that shown in FIG. 1 is set.
Since it is not particularly closely related to the purpose of this invention,
It is indicated by a dashed line, but it is stopped. In Fig. 1, 9 is the nozzle lid, b is the through hole, i is the "O" ring, and j
is a set screw.

Since this device has the above-mentioned configuration, when the cylindrical body Z is set and held at the solid line position in FIG. 3, when the front end is bent and placed along the inner circumferential wall of the expanded portion 11, and the front end is bent and held at the front end of the expanded portion 11 so that the cross section becomes U-shaped, the It forms exactly the same state as the solid line position of the jet head collar 3 and can function as a diffusion jet.

As described above, by simply extending or expanding the cylindrical body made of a bendable material, it is possible to realize a dispersion pattern based on the conventional movement of advancing or retracting the jet collar, and moreover, it is possible to realize a dispersion pattern based on the conventional movement of advancing or retracting the jet collar. Since parts such as locking screws and tightening rings are not required, it is possible to eliminate the need for tightening and loosening of tightening bag nuts. Since it is sufficient to fix it to the inner periphery, it does not complicate the structure itself, is extremely easy to handle by anyone, is very convenient for users, and is economical as it can be used for a long time. It also has practical benefits such as:

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a conventional type of mist jet head, FIG. 2 is a right side view of the first one, and FIG. 3 is a longitudinal sectional view of a main part of the proposed product. A...Full head collar, Z...Cylindrical body, 12...Fitting part.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A power spreader in which the rear of a cylindrical body made of a bendable material is fitted and fixed into the inner peripheral edge of a cylindrical fitting part in the middle of a jet head collar whose front end is expanded. Mist jet for use. (2) The mist jet for a power spreader according to claim 1, wherein the front end of the cylindrical body is bent and held at the front end of the jet collar when the cylindrical body is expanded.