JPH072059Y2 - Nozzle made of synthetic resin for small pump - 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 Techniques and Inventions" The small pump shown in FIG. 1 is used to take out liquid or creamy shampoos, rinses, and the like from a bottle.

This pump is a vertical reciprocating pump, which is equipped with a nozzle (c) at the tip of a stem (b) protruding upward from the main body (a), and is operated by pushing down the nozzle to cause the contents in the bottle to go out of the nozzle. Discharge the object.

The nozzle (c) has a nozzle tube 2 projecting from the front surface of the head 1 in a V-shape and a threaded tube 3 extending downward from the bottom surface. It is designed to be screwed into the screw hole.

This nozzle (c) is usually integrally formed of synthetic resin as appropriate, but it is virtually impossible to directly form the nozzle tube 2 that bends in a V-shape, and therefore, the nozzle tube 2 is formed in a straight state. After that, it is bent by secondary processing. Therefore, it is not easy to manufacture, and the quality and accuracy vary.
This has hindered mass production, resulting in high costs. That is, in addition to the upper and lower punching dies, a horizontal punching die for molding the inside of the nozzle tube is required for the molding, and after molding the nozzle (c) in a straight state of the nozzle tube with these dies, Since the straight nozzle tube is heated and bent in the secondary processing equipment, it takes a lot of time and labor, and it is not easy to manufacture.In addition, variations in bending accuracy occur due to cooling shrinkage after the bending process. This is because it is not possible to increase the number of individual molds in the mold, which, combined with bending, greatly deteriorates productivity, and in addition, the mold becomes complicated and the mold cost increases.

Therefore, in the present invention, the nozzle (c) is composed of two upper and lower bodies, which simplifies the mold, enables more individual picking within the mold, eliminates bending work, and enables mass production and molding.・
We have made it easier to manufacture, improved quality and accuracy, and made it possible to easily color the side that is easily noticed in two colors, and by changing the color tone of these two colors, we differentiated from conventional ones. It is intended to enable differentiation from similar products at the time of store display and differentiation of contents such as shampoo and conditioner of the same shape container at a glance.

[Means for Solving the Problems] In order to achieve the above object, the present invention is for a small pump in which a nozzle cylinder 2 that bends in a V shape is projected from the front surface of a head 1 and a screw cylinder 3 is hung from the lower surface. In the synthetic resin nozzle, an upper member a that constitutes the upper half of the head 1 to the nozzle cylinder 2 and a lower member b that constitutes the remaining lower half and the screw cylinder 3 are formed in different colors. Further, a fitting means is provided between the two, and the upper member a and the lower member b are fitted and integrated by the fitting means.

"Operation" Since it has the above-mentioned configuration, it can be used in the same manner as in the past, and the intended purpose can be achieved.

"Embodiment" The drawings are embodiments of the present invention, and Fig. 1 shows a small pump detachably attached to the mouth of a bottle.

This pump is a vertical reciprocating pump, which is detachably attached to the mouth of the bottle by the main body (a), the stem (b) is projected upward from the main body (a), and the tip of the stem (b) is Is equipped with a nozzle (c), and when the nozzle is pushed down, a pumping action occurs, and the content in the bottle is discharged from the nozzle.

The nozzle (c) is provided with a nozzle tube 2 projecting from the front surface of the head 1 so as to be bent in a V shape, and a threaded tube 3 is hung from the lower surface so that the threaded tube is inserted into a threaded hole of the main body (a) when not in use. In this configuration, the upper member a forming the upper half of the head 1 to the nozzle cylinder 2 and the lower half b forming the remaining lower half and the screw cylinder 3 are formed in different colors. Further, as fitting means between them, fitting projections 7 and 8 are provided vertically from the inner edge of the abutting portion of the head portion of the upper member a and the nozzle cylinder portion, and the fitting projection portions of the lower member b are provided. The upper member a and the lower member b are fitted and integrated with each other by fitting them to the inner edges of the abutting portions of the head portion and the nozzle cylinder portion.

Further, a screw cylinder 3 is hung from the center of the head portion of the lower member b, and is formed in the head 1 by fitting the upper member a and the lower member b to connect the screw cylinder 3 and the nozzle cylinder 2. An internal flow path 6 is provided, and the internal flow path makes the inner cylinder 4 in the lower member b communicating with the screw cylinder 3 inside the head portion, and a concave groove communicating from the front surface of the inner cylinder to the nozzle cylinder part. 9 is formed, and a fitting piece 5 fitted around the inner cylinder 4 and the concave groove 9 is vertically provided on the upper member a.

Furthermore, the screw cylinder 3 is provided with short threads 10 and 10 on both sides,
Corresponding to the thread, escape holes 11 and 11 are provided at appropriate positions of the lower member b for inserting a mold. As a result, in forming the lower member b, the threads 10 and 10 can be formed by cutting the die,
Therefore, the lower member b can be easily molded, and the molded product does not need to be unscrewed from the mold after the mold is opened.
Does not require expensive auxiliary equipment.

[Advantages of the Invention] According to the present invention, the upper member a forming the upper half of the head 1 to the nozzle cylinder 2 and the lower member b forming the remaining lower half and the screw cylinder 3 have different colors. Since they are formed differently and a fitting means is provided between them to fit and integrate the upper member a and the lower member b, the following effects can be obtained.

i) Ease of molding / manufacturing, etc. The upper member a and the lower member b can be molded while the nozzle cylinder 2 is bent in a V shape, and then the fitting can be integrated. There is no need for secondary processing to bend 2 into a V shape, and of course, neither secondary processing equipment nor labor is required, so it is possible to easily mold and manufacture, to secure design flexibility, and cost. Can be reduced.

ii) Improvement of quality and accuracy There is no need for secondary processing to bend the nozzle tube 2 into a V-shape, so there is no variation in bending accuracy due to cooling of the heated and bent secondary processing. , Quality and accuracy can be improved.

iii) Mass production etc. For molding, it is possible to use a simple mold consisting of only upper and lower punching molds, and therefore the mold cost can be reduced, and the mold has many cavities in the mold. In addition to the fact that no bending work is required, the productivity can be greatly improved, mass production is possible, and the product cost can be greatly reduced as a whole.

iv) Differentiation etc. Since the colors of the upper member a and the lower member b, which are fitted and integrated, are different from each other, it is possible to easily color the side surfaces that are extremely noticeable into two colors, the upper and lower sides. The contents can be differentiated from the conventional ones, differentiated from similar products at the time of store display, and the contents (such as shampoo and conditioner) when using the same shape container can be distinguished at a glance. Can be differentiated, and can be beautiful.

BRIEF DESCRIPTION OF THE DRAWINGS The drawings are embodiments of the present invention. FIG. 1 is a perspective view, FIG. 2 is a vertical sectional side view of an essential part, and FIG. 3 is a perspective view of an essential part. . (A) ... Main body, (B) ... Stem (C) ... Nozzle, 1 ... Head 2, Nozzle cylinder, 3 Spiral cylinder, 4 Inner cylinder, 5 Fitting piece, 6 Internal flow path, 7,8 Fitting Colliding part 9 ... Recessed groove, 10 ... Thread 11 ... Escape hole, a ... Upper member b ... Lower member

Claims (1)

[Scope of utility model registration request] 1. A small resin synthetic resin nozzle for a small pump, wherein a nozzle tube (2) bent in a V-shape is projected from the front surface of a head (1) and a screw tube (3) is hung vertically from the lower surface.
The upper member a constituting the upper half portion of the above and the lower member b constituting the remaining lower half portion and the screw cylinder 3 are formed in different colors, and a fitting means is provided between them. A synthetic resin nozzle for a small-sized pump, characterized in that the upper member a and the lower member b are fitted and integrated by the fitting means.