JPH0789964B2 - Metal container - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a metal container such as a pen case and an eyeglass case, and in particular, a container body and a lid can be freely opened and closed by using a pin member. A metal container configured.

(Prior Art) A pen case is taken as a typical example of this type of metal container, and will be described.

That is, as shown in FIGS. 6 and 7, the conventional pen case has a container body 1, a lid 2 that covers the opening of the container body 1, the container body 1 and the lid 2. The hinge pin 3 is located between the two and connects the two, and when the lid 2 is opened and closed, the hinge pin 3 forming the pivot plays an important role.

Further, in this pen case, in particular, when the lid 2 is opened, a slip stopper 4 is provided to prevent the fingers from slipping, and further, a locking portion 5 as a substitute for a clasp so that the lid 2 does not open by itself. Are provided respectively.

Note that reference numeral 6 in the figure indicates pin suppression.

On the other hand, the pen case shown in FIG. 8 and FIG. 9 is the main elements of the container body 1, the lid body 2, the hinge pin 3.
Each of the above-mentioned pen cases has no slip stopper 4, and the locking portion 5 is provided at a position in contact with the lid body 2 of the container body 1.

However, such a pen case is impeccable in that it functions as a container because it is made from a steel sheet and is extremely robust, and it is inexpensive because it is manufactured in large quantities at one time. It is said that.

(Problems to be Solved by the Invention) By the way, in such a pen case in the related art, a thick steel plate tends to be used in order to maintain a certain degree of robustness.

That is, generally, as the bottom of the container body 1 becomes deeper, a thin steel plate has a larger overall twist, which makes it impossible to maintain a large rule as a container. Thick steel plates are often used in a deep pen case.

In such a case, if the weight of the entire pen case is increased, the convenience of carrying the pen case is impaired, and the handling becomes inconvenient.

On the other hand, among the above-mentioned pen cases, the one shown in FIG. 6 and FIG. 7 has the hinge pin 3 and the slip stopper 4 protruding from the side surface of the lid body 2 or the like. If the part is not sufficiently chamfered and some parts remain sharply cut, or the insertion opening of the lid 2 and the hinge pin 3 of the container body 1 is not sufficiently rounded. In that case, there is a risk that the fingers may be injured at those places, or the documents and the like may be broken at the time of taking them in and out of the bag, and there is also a problem in safety. This point is a little improved by eliminating the slip stopper 4 in the pen case shown in FIGS. 8 and 9 or by housing the hinge pin 3 and the like inside the lid 2. However, in order to put the hinge pin 3 inside the lid body 2 as described above, it is necessary to widen the width of the lid body 2 so that the outer peripheral portion comes to the outside of the container body 1. Is spread, which promotes an increase in weight, which is a cause of impaired convenience.

Therefore, it is an object of the present invention to provide a metal container in which the material of the metal container can be made relatively thin and is not deformed by a torsion load.

Another object of the present invention is to provide a metal container in which a protruding portion for accommodating a pin member is removed from the metal container to improve safety.

(Means for Solving the Problems) In order to achieve the above object, the present invention comprises a container body having a dish-shaped cross section and an inverted dish-shaped lid body made of a relatively thin metal material. In a metal container in which a container body and a lid are connected by a pin member that constitutes a pivot so that it can be freely opened and closed, each side part that rises vertically from the base of the container body is bent horizontally to the container body side. An extended step portion and an upper edge extending upward by vertically bending the tip of the step portion are formed, and a pair of pin holes for receiving both ends of the pin member are provided directly below the step portion so as to face each other, and a lid is provided. A pin that extends downward from the ceiling of the body to the upper surface of the stepped portion to extend downward while keeping flush with the outer surface of the side of the container body to form the lower edge and to accommodate the region excluding both ends of the pin member. The lowers that extend between the pin holes When the container body and the lid are connected to each other by a pin member, the pin member fits directly under the step and is flush with both sides of the container body and the lid. It is characterized in that it is kept.

(Operation) The container body formed with a relatively thin steel plate in a dish shape in cross section and the lid body formed in an inverted dish shape in cross section are strong against bending load but weak against torsion load. Therefore, a step is provided on the side of the container body to increase the resistance to the torsional load. This makes it possible to obtain the same strength as when using a thick steel plate.

On the other hand, since the stepped portion is formed in the container body, the pin member is accommodated therein because an empty space is formed inside.
As a result, when the lower edge of the lid is put on the upper edge of the container body, the pin member does not project on the outer surface of the container, and a flat surface can be maintained over the entire side portion, which can improve safety. .

(Example) Hereinafter, an example of application to a pen case will be described with reference to FIGS. 1 to 3.

1 and 2 show the overall structure of the pen case, in which the container body 11 is covered with the lid 12 (FIG. 1) and the lid.
It shows a state in which 12 is opened (Fig. 2), respectively. These container body 11 and lid 12 are made of a metal material, for example, 0.
By pressing a surface-treated steel sheet having a thickness of 3 mm, the container body 11 is made up of five steps, and the lid body 12 is made up of 4 pieces as described later.
Each is manufactured by two processes.

As shown in FIG. 3, the container body 11 is formed with a step portion 15 in which a side portion 14 standing up by the base portion 13 is bent substantially horizontally and extends inward. An upper edge 16 extending upward is formed by re-folding the tip portion vertically.

On the other hand, a lower edge of the lid body 12 that extends downward so that the tip of the side portion 18 depending from the ceiling portion 17 is flush with the outer surface of the side portion 14 of the container body 11 and engages with the upper edge 16 described above. 19 are formed.

Further, the container body 11 and the lid body 12 are respectively provided with a pin hole for a hinge pin, a relief groove and a pin retainer, which are as shown in FIG.
A pin hole 20 and a relief groove to be described later are provided directly below the stepped portion 15 of 11, and a pin retainer 22 is provided in an extended portion of the lower edge 19 of the lid body 12, and the pin retainer 22 and the hinge pin 23 are provided in the pin hole 20. The container body 11 and the lid body 12 are mounted and connected to each other, and the lid body 12 can be freely opened and closed by this.

In the figure, reference numeral 24 indicates a slip stopper, and reference numeral 25 indicates a locking portion.

In the pen case having the above structure, an external force applied to the container body 11 by the step portion 15 provided around the container body 11,
In particular, the resistance to a torsional load is significantly increased, and the same strength as when a thick steel plate is used can be obtained. Conventionally, increasing the thickness of the steel plate in order to maintain the strength has led to an increase in the weight of the pen case, which has been a cause of impaired convenience, but according to the present invention, since the increase in weight is suppressed, It is convenient to carry as a light pen case.

On the other hand, in the pen case according to the present invention, the hinge pin 23 and the pin retainer 22 that is a supporting portion thereof are all housed inside the container main body 11 or the lid 12, and the one projecting to the outer surface is the container by pressing. Only the non-slip 24 slightly raised on the side surface of the main body 11. Therefore, various accidents caused by the careless use of these elements,
In particular, a finger injury and a document damage accident during handling cannot occur because the pen case does not have a protruding portion, which is a safety consideration.

Next, a method of manufacturing the pen case of the above embodiment will be described with reference to FIGS. 4 and 5.

In FIG. 4, first, the base part which constitutes the bottom of the container by drawing and drawing the raw material plate prepared for the container body 11
13 and the side part that rises almost vertically from the end of this base part 13.
And 14 (see FIG. 4 (a)).

Next, a step 15 which intersects the side portion 14 at an angle of about 30 degrees by applying a tension from the inside of the container with a mold in the vicinity of the center in the vertical direction of the side portion 14 formed by the above drawing process. Simultaneously with the formation, the upper edge 16 is formed at the tip of the step 15 so as to follow the side portion 14 (see FIG. 4 (b)). Then, these steps
15 and the upper edge 16 are bent and the step portion 15 is bent to the extent where it intersects the side portion 14 at an angle of approximately 60 degrees, while the upper edge
The edge of 16 is slightly bent inward (see Fig. 4 (c)).

Further, while the step portion 15 and the upper edge 16 are subjected to the bending process again, the step portion 15 is formed in a substantially horizontal state, while the upper edge 16 is formed so that the edge ends have an annular shape (Fig. 4). (D)
reference). After that, a point which is located a certain distance downward from the step portion 15 of the side portion 14 is recessed with a mold to form a relief groove 21 and a pair of pin holes 20 located at both ends of the relief groove 21 at the same time ( See FIG. 4 (e). In this step, the slip stopper 24 is attached to the side portion 14 on the side opposite to the side where the hinge pin is attached.
However, the locking portion 25 is simultaneously formed on the upper edge 16 located right above the slip stopper 24.

On the other hand, as for the lid body 12, as shown in FIG. 5, first, a raw material plate prepared for the lid body 12 is subjected to a drawing process to form a ceiling of a container, and a ceiling portion 17 of the ceiling. A side part 18 hanging from the end of the part 17 and a lower edge 19 and a pin retainer 22 extending downward from the tip of the side part 18 are formed at the same time (see FIG. 5 (a)).

Next, while the pin retainer 22 is subjected to the punching bending process, the pin retainer 22 is cut into a certain length L, and at the same time, the edge of the pin retainer 22 is slightly bent inward (see FIG. 5 (b ),
(See (b ')). Further, the lower edge 19 is subjected to a bending process so that its edge is slightly bent inward (see FIG. 5 (c)). After that, the lower edge 19 and the pin retainer 22 are subjected to bending again, and are shaped so that the edges are annular (see FIG. 5 (d)).

Through the above steps, the container body 11 and the lid 12 are completed, and the two are connected via the hinge pin 23 to be integrated into one metal container.

(Effect of the invention) As described above, the present invention has a step portion that horizontally bends each side portion of the container body and extends horizontally inward, and an upper edge that bends the tip of this step portion vertically and extends upward. And a pair of pin holes for receiving both ends of the pin member are provided directly below the step portion so as to face each other, and the side portion of the lid is flush with the outer surface of the side portion of the container body up to the upper surface of the step portion. When a thin metal material is used, when a thin metal material is used, a container is formed when the thin metal material is used because the pin retainer that extends downward and forms the lower edge and accommodates the region excluding both ends of the pin member is formed further below the lower edge extending between the pin holes. The stepped portion of the main body acts as a reinforcing portion for floating the torsional load, and deformation of the metal container can be eliminated. Furthermore, since there is no protruding portion for accommodating the pin member on the outer surface of the metal container, safety can be improved.

[Brief description of drawings]

1 and 2 are perspective views of a metal container according to the present invention,
FIG. 3 is a cross-sectional view of the metal container shown in FIGS. 1 and 2, and FIGS. 4 and 5 are process explanatory views showing a method of manufacturing a container body and a lid according to the present invention in the order of processes, and FIG. And FIG. 7 is a perspective view and a sectional view showing an example of a conventional pen case, and FIGS. 8 and 9 are perspective views showing a conventional special pen case. 11 …… Container body, 12 …… Lid body 13 …… Base part, 14, 18 …… Side part 15 …… Step part, 16 …… Top edge 17 …… Ceiling part, 19 …… Bottom edge 20 …… Pin Hole, 22 …… pin restraint 23 …… hinge pin, 24 …… slip prevention

Claims (1)

[Claims] 1. A pin member having a container body having a dish-shaped cross section and a lid body having an inverted dish shape and made of a relatively thin metal material, and a pin member constituting a pivot for opening and closing the lid body freely on the upper surface of the container body. In a metal container formed by connecting the container body and the lid body, a step portion that extends inside the container body by horizontally bending each side portion that rises vertically from a base portion of the container body, and a tip of the step portion. An upper edge is formed by vertically bending and extending upward, and a pair of pin holes for receiving both end portions of the pin member are provided directly below the step portion so as to face each other, and extend downward from the ceiling portion of the lid body. Each side portion is extended to the upper surface of the step portion while being flush with the outer surface of the side portion of the container body to extend downward to form a lower edge, and the pin retainer for holding the region excluding both ends of the pin member is held by the pin. The lower edge extending between the holes Further formed to extend downward, thereby when the said lid and said container body and connected by the pin member, the pin member fits beneath the step portion,
A metal container characterized in that the entire surface of the side of both the container body and the lid is kept flush.