JPH0620785B2 - Molding method for hand-held shopping baskets - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a method for forming a shopping basket that is carried and used by a large number of unspecified persons.

<Prior Art and Problems to be Solved> For example, in a shopping basket made of synthetic resin (commonly known as a self basket) used in a store such as a supermarket,
Due to the unspecified number of people gripping the carrying handle, bacteria such as staphylococci and fungi easily grow on it, which may cause deterioration, discoloration, strength deterioration, and odor of the product itself. However, there is a problem in that it is not preferable in terms of hygiene and appearance.

Even if the carrying handle is formed by bending from a temporary metal rod, the basket body made of synthetic resin accommodates and uses various foods. It adheres to and accumulates in the corners, and the above problems still occur.

Therefore, in the case of this kind of handbag shopping basket, it is subjected to regular cleaning work for hygiene, but once it deteriorates or discolors,
It is impossible to recover the properties that caused the decrease in strength, and there is a situation where measures are being sought.

<Means for Solving the Problems> The present invention intends to fundamentally solve such problems, and for that purpose, a polypropylene or polyethylene pellet main material and an auxiliary material such as an antistatic agent or a colorant are used because of its constitution. When the basket main body or / and its handbag handle is injection-molded, a pellet type bainazine for giving the basket main body / and / or handbag handle antibacterial property is added to about 0.5 to about 0.5 weight% of the weight of the pellet main material. It is characterized by mixing only 1.0%.

<Action> If a basket body or a handbag is injection-molded by adding “Binadine” (antifungal agent) in the ratio specified in the above numerical range, excellent antibacterial properties can be imparted to the product. , The intended purpose can be effectively achieved.

<Examples> Hereinafter, the details of the present invention will be described with reference to the drawings.
FIG. 11 shows an example of a synthetic resin hand-held shopping basket according to the application of the present invention. (A) is a basket main body in the shape of a rectangular parallelepiped box as a whole open upward, and (11) is its rectangular flat. The grounding seats (12) and (13) project downwardly from the center and square corners of the bottom wall.

(14) are front and rear and left and right surrounding walls standing upright from the peripheral portion of the bottom wall (11), and are provided with an inclination gradient that gradually expands upward, and the entire upper end of the wall is inverted. The L-shaped opening brim (15) is formed by bending outward. The bottom wall (11) and the surrounding wall (14) are adjacent ribs (a) by a group of ribs (a) and (b) that intersect with each other.
A large number of vent holes (S) are formed between the parts (b) so that the contents accommodated in the basket body (A) can be seen through.

In that case, in combination with the grounding seat (13) at the corresponding position, a squared corner of the bottom wall (11) also defines a droop outlet (16) with a particularly large opening that is framed in a substantially triangular shape in plan view. On the other hand, at the same square corner of the surrounding wall (14), there is also provided a support piece (17) projecting outward from the boundary position with the opening flange (15). When a plurality of basket main bodies (A) are stacked, the support piece (17) engages with the opening flanges (15) of the adjacent basket main bodies (A) as shown in FIG.

Reference numeral (18) denotes a pair of left and right handle mounting pieces which are vertically erected upward from the opening brim (15) of the surrounding wall (14), and the vertical height (H) of which is the supporting piece. It is set equal to the working height (h) of (17), and when a plurality of basket main bodies (A) are stacked, their mounting pieces (18) are adjacent to the opening brim (15) of the basket main body (A). To the back side (downward).

Then, as is clear from FIGS. 5 to 7, the respective attachment pieces (18) are provided with a central hole (20) for receiving the tip hook portion (19) of the handbag (B) and the tip hook portion (19). The cam groove (22) that holds the handle (B) itself upright at a certain inclination angle (θ) by being locked to the protruding stopper piece (21) is opened in a so-called stepped communication state with each other. There is.

The pair of carrying handles (B) are bent in a gate shape in a plan view which comes into contact with the opening brim (15) of the basket body (A) when the handle is folded down, and the hook tip (19) at the tip of the detachment thereof is bent. ) Is pivotally connected to the attachment piece (18) of the basket body (A) so as to be detachable and capable of undulating. That is, when stacked, the handles (B) in the laid-down state are constrained from the vertical direction by the opening flanges (15) of the adjacent basket bodies (A), so that the raising and lowering operations cannot be performed.

In that case, the handle (B) itself has a high-strength H-shaped cross-section as extracted from FIGS. 8 to 10, but only the center of the horizontal bar portion (23) of the basket body (A) is particularly formed. Opening collar (1
It is formed as a grip part (24) that projects slightly outward from 5) and is easy to hold and stand up. The cross-sectional shape of the grip part (24) is a horizontal T-shape as shown in Fig. 10. It is also formed into a mold. by this,
The cleaning liquid is designed to flow particularly smoothly, and consideration is given to prevent foreign substances from accumulating.

In manufacturing the basket main body (A) and the carrying handle (B) of the shopping basket as described above, in the present invention, a good material such as an antistatic agent or a coloring agent is added to the polypropylene or polyethylene pellet main material. It is injection-molded, in which case a pellet type "Binadine" is mixed in to impart antibacterial properties to the product itself.

"Binadine" is a product name of a kneading type antifungal agent developed by Morton Thiokol Company in the United States.
The active ingredient is 0,10'-oxybisphenoxyarsine, which is mixed, dissolved and dispersed in a fixed carrier and diluted to a fixed concentration. In the present invention, among such "binazines", a pellet type having polypropylene or polyethylene as a carrier, which is compatible with the above-mentioned pellet main material, is adopted, and moreover, 10 of the above-mentioned pellet main materials are adopted.
Only about 0.5-1.0% by weight, based on 0% by weight, is added.

Then, "bainazine" uniformly disperses in the product of the basket body (A) and the handle (B), and the antibacterial property of the product is significantly enhanced. If a large amount of the "Binadine" is added in excess of the above 1.0% by weight, the colorant will be adversely affected, and the color of the finished product will easily turn black, and the addition amount of Antibacterial properties do not improve proportionately. On the other hand, the desired antibacterial properties cannot be obtained by adding a small amount of less than 0.5% by weight, so it is necessary to define the addition ratio within the above numerical range.

By the way, 1000 kg of polypropylene and polyethylene pellet main materials, 5 kg of "Binadine" pellets, 5 kg of antistatic agent pellets (trade name-Electric stripper), and 5 kg of fine particles of colorant. The whole is about 30-4 by tumbler
After kneading for 0 minutes, the shopping basket that was injection molded
Standards for additives, etc. (Showa 34 Ministry of Health and Welfare Notification 370
No.) was tested and good results were obtained for all of the test items.

Needless to say, the method of the present invention as described above can be applied not only to the entire shopping basket, but to only the basket main body (A) or the carrying handle (B). Needless to say, the form of the hand-held shopping basket is not limited to the illustrated one.

<Effects of the Invention> As described above, in the method for forming a hand-held shopping basket according to the present invention, by adding auxiliary materials such as an antistatic agent and a colorant to the polypropylene or polyethylene pellet main material, the basket main body or / When injection-molding the bag and the handle, the pellet-type bainazine for imparting antibacterial properties to the basket body or / and the handle is mixed in an amount of about 0.5 to 1.0% of the weight of the pellet main material. Therefore, it is possible to completely solve the problems of the prior art described at the beginning, and it is possible to obtain a product that conforms to the standards of the Food Sanitation Law.

Further, if the "binadine" is added within the above numerical range, there will be no molding problem at all, and mass production can be carried out almost in the same manner as in the past, which is extremely useful. Also, as a shopping basket manufactured by using the method of the present invention, a drip outlet (16) is provided at a square corner portion of the basket body (A), while a grip portion (24) of the carrying handle (B) is provided. It can be said that is preferable because the above effect can be further improved if the cleaning liquid is set to have a simple cross-sectional shape in which the cleaning liquid easily flows and foreign substances are hard to be deposited.

[Brief description of drawings]

1 and 2 are a side view and a plan view showing a hand-held shopping basket according to an application object of the present invention, FIG. 3 is a partially enlarged sectional view taken along line 3-3 of FIG. 1, and FIG. 4 is FIG. 4-4 is a sectional view taken along line 4-4, and FIGS. 5 and 6 are partially enlarged side views showing the operation of raising and lowering the carrying handle with respect to the basket body. FIG. 7 is a sectional view taken along line 7-7 of FIG. 6, and FIG. FIG. 9 is a plan view showing a handbag handle extracted, FIGS. 9 and 10 are enlarged cross-sectional views taken along lines 9-9 and 10-10 of FIG. 8, and FIG. 11 is a side view showing a stacked state of shopping baskets. is there. (A) …… Basket body (B) …… Handle handle

Claims (1)

[Claims] 1. A basket main body or / and a basket main body and / or injection-molded by adding auxiliary materials such as an antistatic agent or a colorant to a polypropylene or polyethylene pellet main material A method for forming a hand-held shopping basket, characterized in that the pellet-type bainazine for imparting antibacterial properties to the hand-held handle is mixed in an amount of about 0.5 to 1.0% of the weight of the pellet main material.