JPH0547096Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a synthetic resin nozzle for a small pump.

``Problems to be solved by conventional technology and inventions'' Conventionally, in order to take out the contents of liquid or cream-like shampoos and conditioners from bottles,
A small pump shown in Japanese Patent No. 59-123568 is used (see Figure 1).

As shown in Fig. 1, this small pump is a vertical reciprocating pump, and is equipped with a nozzle at the tip of a stem that protrudes upward from the main body. Squirt out the contents.

The nozzle has a nozzle tube 2 bent in an F-shape extending from the front surface of the head 1, and a screw tube 3 hanging from the bottom surface, and when not needed, the screw tube can be screwed into a screw hole in the main body A. I'm trying to match it.

This nozzle is usually integrally molded from a suitable synthetic resin, but it is virtually impossible to directly form the bent nozzle tube 2 in a F-shape.
After being molded in a straight state, it is bent during secondary processing, making it difficult to manufacture.

By the way, as a liquid dispensing container whose seal is broken and opened, the stopper that protrudes the nozzle forward is constructed by fitting two upper and lower members, and the lower member, which has been turned upside down when not in use, can be turned over in its correct position. There is a method in which the seal is broken and opened by the lower member and the nozzle is made into a cylindrical state by returning and fitting it with the upper member (Japanese Utility Model Publication No. 56-153450). If the nozzle is constructed by fitting the upper and lower members together in this way, it is considered possible to form a nozzle bent in an F-shape without secondary processing.

However, in reality, due to the presence of the screw tube 3, synthetic resin molding cannot be easily performed, and the molded product must be removed from the mold by screwing when opening the mold after molding. Therefore, it is quite time consuming. Furthermore, expensive auxiliary equipment is required, resulting in high costs.

Therefore, the present invention consists of a nozzle that is made up of two parts that fit together, an upper and a lower part, and also allows the thread to be formed by cutting off the mold when molding the lower member, thereby making it easier to manufacture and to provide at a lower cost. This is what I am trying to do.

"Means for Solving the Problems" In order to achieve the above object, the present invention has been developed for a small pump, in which a nozzle tube 2 bent in an F-shape is protruded from the front surface of a head 1, and a spiral tube 3 is suspended from the bottom surface. In a synthetic resin nozzle, the head 1 to the nozzle tube 2 are divided into upper and lower halves at the middle part, and there is an upper member a in which the upper half of the nozzle tube is connected to a cap-shaped head section, and a lower half of the nozzle tube is connected to a dish-shaped head section. It is constructed by fitting the upper and lower parts with the continuous lower member b, and the screw tube 3 is
Suspended from the center of the dish-shaped head portion of the lower member b,
Also, inside the head 1 are an upper member a and a lower member b.
A suitable internal flow path 6 is provided to connect the screw tube 3 and the nozzle tube 2, and the screw tube 3 is provided with a pair of very short inclined protrusions 10 on both sides as threads. , 10 are provided in a protruding manner, and a pair of left and right escape holes 11, 11 for inserting the molds are provided at appropriate positions in the dish-shaped head portion of the lower member b in correspondence with the inclined protrusions.

``Function'' With the above structure, it is possible to fit the upper member a and the lower member b by forming the nozzle cylinder 2 which bends and protrudes forward from the head 1 in a V-shape without performing secondary processing. In addition, in such two members, a pair of extremely short inclined protrusions 10, 10 on both sides are provided as threads on the screw tube 3 hanging from the lower member b.
exhibits the same function as a conventional screw cylinder, and furthermore, the lower member b
The left and right pair of escape holes 11, 11 for passing through the molds formed at appropriate positions in the dish-shaped head part of the screw head 3 are used to form the lower member b, and in particular, to mold the threads of the screw tube 3 by cutting the molds. To enable simple ejection from a mold without screwing.

``Embodiment'' The drawings show an embodiment of the present invention, and what is shown in the drawings is a cap-shaped head portion of the upper member a and a nozzle tube as fitting means for the upper member a and the lower member b in the above-described configuration. Fitting protrusions 7 and 8 are provided vertically from the inner edge of the lower end of the upper half, and each part of the lower member b is fitted into the fitting protrusions.

In addition, the internal flow path 6 includes an upright inner cylinder 4 that communicates with the screw cylinder 3 inside the head part in the lower member b, and a groove 9 that communicates with the nozzle cylinder 2 from the front surface of the inner cylinder. In the upper member a, a fitting piece 5 that fits around the inner cylinder 4 and the groove 9 is vertically provided.

The upper member a and the lower member b may be colored differently. In this way, the easily visible sides can be divided into two colors, top and bottom, and this allows for a change in color tone, making it possible to differentiate from conventional products and emphasize the differentiation of similar products when displaying products, creating a beautiful and luxurious product. It can be made into something.

"Effects of the invention" According to the invention, since the upper member a and the lower member b are fitted together, there is no need for secondary processing even if the nozzle tube 2 is bent in an F-shape. , in the lower member b, a pair of very short left and right inclined protrusions 10, 10 are formed on both sides of the screw tube as the screw threads of the screw tube 3,
Since relief holes 11, 11 are provided at appropriate positions of the lower member b in correspondence with the inclined protrusions, through which the mold is inserted,
The threaded inclined protrusions 10, 10 can be formed by cutting off the mold, and after molding, the molded product can be simply taken out without the need to unscrew it from the mold, thus reducing the time and effort required for molding. Moreover, it does not require any expensive auxiliary equipment, is extremely easy to manufacture, can reduce costs, and can be provided at low cost, which is extremely useful in practice.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a perspective view, FIG. 2 is a vertical sectional side view of the main part, and FIG. 3 is a perspective view of the main part. A...Body, B...Stem, C...Nozzle, 1
...Head, 2...Nozzle tube, 3...Screw tube, 4...
... Inner cylinder, 5 ... Fitting piece, 6 ... Internal flow path, 7, 8
... Fitting protrusion, 9 ... Concave groove, 10 ... Inclined protrusion,
11... Relief hole, a... Upper member, b... Lower member.

Claims (1)

[Scope of utility model registration request] In a synthetic resin nozzle for a small pump, in which a nozzle tube 2 bent in an F-shape is protruded from the front surface of the head 1, and a screw tube 3 is hung from the bottom surface, the head 1 to the nozzle tube 2 are vertically arranged in the middle. An upper member a in which the upper half of the nozzle cylinder is connected to a cap-shaped head part that is divided into two parts.
and a lower member b in which the lower half of the nozzle cylinder is connected to the dish-shaped head part. The head 1 is provided with an appropriate internal flow path 6 which is formed by fitting the upper member a and the lower member b and connects the screw tube 3 and the nozzle tube 2. The cylinder 3 has a pair of very short inclined protrusions 10, 10 protruding from both sides as threads, and a pair of right and left metal pieces are placed at appropriate positions on the dish-shaped head of the lower member b in correspondence with the inclined protrusions. Relief hole 11, 1 for inserting the mold
1. A synthetic resin nozzle for a small pump, characterized by being provided with: