JPH026773Y2 - - Google Patents

Description

[Detailed description of the invention] The invention consists of transparent acrylic resin,
Concerning horticultural water pitchers made of ABS resin, AS resin or styrene resin.

In general, gardening water jugs do not have lotus seeds attached for watering like watering cans, but simply have a nozzle for water injection extending from the water jug body, and the nozzle allows the water to be used as a pot, a hanging pot, or a water jug. Water garden plants planted in compote, etc., and apply liquid fertilizer. Recently, these pots, compotes, planters, etc., especially
Indoor appliances themselves are becoming more and more sophisticated.
There is also a growing need for higher quality gardening watering tools such as watering cans and water jugs.

On the other hand, transparent methyl methacrylate resin (acrylic resin) with excellent optical properties is also known as a material that gives the image of a luxury product, as it is used in chandeliers.

Therefore, the inventors of the present invention used transparent acrylic resin for the main body of the water pitcher, and after extensive trial and error, they arrived at the creation of the present invention in order to meet the needs of high-end products.

Hereinafter, the configuration of the present invention will be explained based on examples. Fig. 1 is a sectional view showing the water pitcher, and 1 shows the main body of the water pitcher injection-molded from transparent acrylic resin, which is approximately a truncated conical cylinder, with the upper surface 2 partially opening 3; Supply water or liquid fertilizer. The lower surface is entirely open, and a step is formed on the periphery 4 of the opening, into which an outer periphery 6 of a bottom body 5, which will be described later, is fitted and joined. Details of the joining will be described later.

The bottom body 5 is made of colored acrylic resin by injection molding, and has a shallow dish-like shape, and a circumferential ridge 7 is formed on the outer surface of the bottom, which functions as a thread tail.

8 is a nozzle made of stainless steel pipe,
One end is a water inlet 9, and the other end is inserted through the wall 10 of the bottom body 5 and fixed inside the bottom body. Details of the fixing will be described later. The pipe used for the nozzle 8 preferably has a diameter of 8 mm and is a rigid body.

Reference numeral 11 denotes a handle made of the same stainless steel pipe as the nozzle 8, one end of which is inserted and fixed in the upper side wall of the water pitcher body 1 in the same direction as the nozzle 8, and the other end is inserted into the wall 10 of the bottom body 5 to hold the nozzle 8 in the opposite direction. It is inserted and fixed in the direction. Details of these fixings will be described later. Like the nozzle 8, the handle 11 is also a rigid body,
It is both robust and aesthetically pleasing.

Regarding the connection between the water pitcher body 1 and the bottom body 5, as shown in FIG. 2 which is an enlarged view of part A in FIG. 5 and the upper surface 13 of the outer periphery 6 of the outer periphery 6 and the upper surface 13 of the outer periphery 6 are brought together and the two are welded together by transmission welding using a well-known ultrasonic welding method. That is, a wedge-shaped energy director 14 is provided on the upper surface 13 so as to protrude over the entire outer periphery 6, and a cylindrical body that is an ultrasonic vibrator of an ultrasonic welding device (not shown) is provided on the ridge 7 of the bottom body 5. When ultrasonic energy is applied while pressing the horn, the energy propagates through the bottom body 5, concentrates on the energy director 14, melts the director 14, and partially enters the horizontal surface 12, causing the upper surface to melt. 13 and the horizontal surface 12 are completely welded together.

More specifically, during this welding, the handle 11 is fixed to the water pitcher body 1 and the bottom body 5 in advance, and the nozzle 8 is further fixed to the bottom body 5, and then the water pitcher body 1 and the bottom body 5 are welded together. Therefore, if the distance between the horn and the energy director 14 is short, the ultrasonic energy can be saved. Therefore, the water jug shown in FIG. 1 is turned upside down and the horn is pressed against the bottom body 15. Therefore, the head of the horn does not need to have a special shape and can be just the end face of the cylindrical body.Moreover, if the head is made slightly larger than the diameter of the flange 7, which is the end of the thread, the entire surface of the head of the horn will be the same as the flange 7. The ultrasonic energy is uniformly concentrated on the energy director 14. Here, even if the end metal pieces of the nozzle 8 and the handle 11 are present in the resin,
Since the ultrasonic energy bypasses these metal pieces and concentrates on all the energy directors 14, the welding is strong over the entire surface and there is no fear of water leakage.

In particular, in this gardening water pitcher, the pitcher body 1 is transparent and the bottom body 5 is colored (black), so
The remaining air bubbles due to cavitation caused by vibration on the mating surface of the horizontal surface 12 of the water pitcher body 1 and the upper surface 13 of the bottom body 5 can be seen directly from the outside, impairing the aesthetic appearance and the reliability of welding, so in order to avoid this,
The following measures have been taken. That is, as shown in FIG. 2, a gap 16 of 0.1 mm is interposed between the vertical surface 15 of the step and the circumferential surface 18 of the outer periphery 6, so that fine air bubbles can be sequentially discharged from the gap 16. By first welding the vertical surface 15 of the step,
The horizontal surface 12 and the upper surface 13 are not welded together, thereby preventing the risk of water leakage.

Next, regarding the fixing of the nozzle 8 and the bottom body 5, as shown in FIG. A seat 19 is integrally formed near the boss 17 and protrudes. The nozzle 8 passes through the boss 17 and is further placed on the seat 19. Further, the nozzle 8 is provided with a flange 20, and an O-ring 21 fitted into the front boss 17 is crimped to make the nozzle 8 watertight. A vertical through hole 22 is provided in the part of the nozzle 8 that is placed on the seat 19, and a cover piece 23 that covers the through hole 22 is provided.
A screw 24 is press-fitted into the seat 19 using ultrasonic energy to prevent the nozzle 8 from coming off and rotating. In addition, by providing the covering piece 23,
The pipe of the nozzle 8 is prevented from being crushed by screwing, and the screw 24 is prevented from loosening by the vibration of ultrasonic welding, and the welding surface of the seat 19 and the cover piece 23 is welded by an ultrasonic welding method to strengthen the nozzle 8. Unlike the conventional case in which the nozzle 8 was press-fitted into an auxiliary pipe extended into the water pitcher body 1 using the material of the water pitcher body 1, the attachment part for the nozzle 8 is built into the water pitcher body 1, and it can be firmly attached. . Note that 25 indicates a communicating hole.

Next, talking about fixing the handle 11, the water pitcher body 1, and the bottom body 7, the handle 11 is a rigid and curved body as shown in FIG. It's crowded. At this time, the handle 1
A notch 27 is provided at the upper end of the handle 1, and the notch 27 fits into a rib 28 extending from inside the boss 26 to prevent the handle 11 from rotating unnecessarily.

Next, the lower end of the handle 11 is connected to the rear boss 29 of the bottom body 5.
As shown in FIG. It is designed to fit into the hole 31. 3
2 is a cover piece, as shown in Fig. 4, a rear boss 29
After inserting the lower end of the handle 11 into the handle 11, the lower end of the handle 11 is fitted into the notch of the rear boss 29 and welded. This welding is also carried out by ultrasonic welding.

More specifically, the order of assembling the handle 11 is to connect the upper end of the handle 11, which is a rigid body, to the boss 2 of the water pitcher main body 1.
6, and then the bottom body 5, which is separate from the water pitcher main body 1, is brought into contact with the step of the water pitcher main body 1 without being fitted, and even though the handle 11 is a rigid body, it is slightly deformed, so that the handle 11 is curved. After pushing the object apart and fitting the protrusion 30 into the hole 31, the bottom body 5 is fitted into the step by sliding slightly from the front toward the rear, and then the cover piece 32 is welded.

Note that the protrusion 33 shown in FIG.
It is placed on the diameter of

Here, in particular, the present invention specifically adopts a hard resin having transparency (including lightly colored resin), preferably acrylic resin, and other ABS resin, AS resin or styrene resin, and the horticultural water jug body This gives the water jug aesthetic and optical properties, while the base is colored to make it opaque, meaning it cannot be completely seen through, giving it a sense of stability. Also, seat 1
9 may also be connected to the boss 17, and in short, any means for fixing the nozzle 8 inside the bottom body 5 may be adopted.

In summary, the present invention involves inserting a nozzle made of a metal pipe in advance, which is molded by injection molding from a colored, opaque resin similar to the above, into a water pitcher body that is injection molded from a transparent hard resin. This horticultural water pitcher is characterized by having a fixed bottom body joined by ultrasonic welding, so it has the following effects.

The main body of the water pitcher is made of transparent resin, giving it a high-class image, while the metal pipe nozzle is fixed to the base, which cannot be seen through, so the pipe does not impair the transparency of the water pitcher itself. .

Since the water pitcher main body and the bottom body are joined by ultrasonic welding, the water pitcher main body is transparent and even if the joined part is directly viewed, no foreign matter is recognized and the aesthetic appearance is not impaired.

Since the water jug body and bottom body are joined by ultrasonic welding, unlike joining with adhesive, it not only improves productivity, but also eliminates the need for adhesives, such as adhesives adhering to the transparent water jug body and causing stains. There are no inconveniences caused by this.

[Brief explanation of drawings]

Figure 1 is a sectional view, Figure 2 is an enlarged view of part A in Figure 1, Figure 3 A is an enlarged view of the main part of Figure 1, and Figure 3 is an enlarged view of the main part of Figure 1.
FIG. 4A is an enlarged view of the main part of FIG. 1, and FIG. 4A is a side view taken from C in FIG. 1. 1... water jug body, 5... bottom body, 8... nozzle.

Claims (1)

[Scope of utility model registration request] The main body of the water jug is made of transparent hard resin by injection molding, and the bottom body is injection molded of colored opaque hard resin and has a nozzle made of metal pipe inserted and fixed, which is joined together by ultrasonic welding. A gardening water pitcher.