JPH0354022Y2 - - Google Patents

Description

[Detailed explanation of the invention] <Industrial application field> This invention relates to a button-shaped battery storage tray, and more specifically, it is used by stacking a large number of batteries, each containing a large number of batteries, and is transported in a cosmetic case or the like. This invention relates to a button-shaped battery storage tray used for.

<Prior art> The button-shaped battery storage tray as described above has a shape in which the rising wall surface following the bottom surface has a fairly gentle slope, and when the trays are stacked on top of each other as shown in Fig. 4, the tray T Battery B stored in a tray located below the bottom of
It is known that the battery is supported sequentially by the top surface. <Problem to be solved by the invention> However, in the case of button-shaped batteries, although their diameters are approximately the same, their thickness is Since the thickness varies greatly depending on the battery model, in a conventional structure, the total thickness after stacking the trays varies greatly depending on the battery model to be stored. For this reason, the type of cosmetic case or packaging specifications differ depending on the battery model, and it is also necessary to make the overall thickness uniform by inserting spacers between trays or on the top and bottom surfaces of the entire tray. However, there are problems such as the battery packaging work becoming complicated and the packaging cost increasing.

<Means for solving the problems> The button-type battery storage tray of this invention, which was devised in view of the above-mentioned problems, is a flat tray that stores a plurality of button-type batteries. a wall surface, a part of the rising wall surface is steeper than the other part, and the angle (θ) between the part of the rising wall surface and the vertical line is expressed by the following formula: 0<θ<tan ^-1 (t/h) t: material thickness of the tray h: the range determined by the distance from the bottom to the top of the rising wall surface.

That is, in the present invention, the shapes of the trays are defined as described above so that the trays support each other when stacked, and this will be explained with reference to FIGS. 1A and 1B. First, in a tray 1 having a bottom surface 2 and a rising wall surface 3 following this, the bottom of the tray 1 is supported by the top of the tray 1 below at the overlapping portion of the trays as shown in FIG. 1A, and the trays overlap. In order to do this, the overlap length l shown in Figure 1B is
must be l>0 (formula). here,
The material thickness of the tray 1 is t, the distance from the bottom surface 2 to the top of the rising wall surface 3 is h, and the rising wall surface 3 is
If the angle between the vertical line and the vertical line is θ, the overlapping length l is expressed as l=th·tanθ (formula). From the formula, th・tanθ>0 (formula), and from the calculation result of the formula, θ<tan ^-1 (t/h) (formula) is obtained as a condition for the trays to overlap, and,
If the angle θ is not made larger than zero, the mold will separate during tray molding, or the button-shaped battery will be difficult to insert. Therefore, the angle θ must be within the range of the following equation.

On the other hand, in order to prevent trays from overlapping each other, increasing the slope of the rising wall surface of the entire tray and bringing it closer to vertical makes it extremely difficult to separate from the mold during tray molding, and if the tray is forcibly removed from the mold, the tray may become deformed, etc. This will cause inconvenience. Therefore, by making the slope of only a part of the rising wall surface steep as defined by the following formula above, and making the other parts slope more gently than this, the rising wall surface with a gentle slope of more than a certain value can be used. Due to the presence of the above-mentioned steeply sloping rising wall, it is easy to take the batteries in and out, the batteries sit well after being stored, and the molds are not easily separated from the mold during tray molding. The overall thickness of the tray becomes constant, and as a result, the above-mentioned disadvantages can be eliminated. It goes without saying that the inclination above a certain level is an angle such that when the trays are stacked, the bottom of the upper tray fits into the corresponding part of the lower tray. By devising the shape of the trays so that they support each other, when stacking trays for packaging, the overall weight of the stacked trays is always constant regardless of the battery type stored.

<Example> Example 1 Bottom surface 5 and rising wall surfaces 6a and 6b shown in FIG.
In the tray 4 having a battery compartment formed by the above, the rising wall surface 6a has a steep slope in which the angle θ1 between it and the vertical line is determined by 0<θ1<tan ^-1 (t1/h1). On the other hand, the rising wall surface 6b has a gentler slope than the rising wall surface 6a.

Embodiment 2 In FIGS. 3A and 3B, the tray 7 has a bottom portion consisting of a large number of circular bottom surfaces 8 and connecting bottom surfaces 10 formed between the circular bottom surfaces 8, and a circular bottom surface 8 or a connecting bottom surface 10 formed between the circular bottom surfaces 8. It is composed of rising wall surfaces 9, 11a, and 11b formed following the bottom surface 10, and top surface pieces 12 and 13 located on the top surface of the tray.

The circular bottom surface 8 has a diameter slightly larger than the battery diameter of the button-shaped battery to be stored, and has a circular protrusion formed in the center. Further, the rising wall surface 9 is a wall surface formed concentrically around the circular bottom surface 8, and has a gentler slope than the rising wall surface 11a, which will be described in detail below. On the other hand, among the rising wall surfaces 11a and 11b formed on both sides of the connecting bottom surface 10, the angle θ3 between the rising wall surfaces 11a and the vertical line is 0<θ3<tan ^-1 (t2/
h2). still,
t2 is the material thickness of the tray 7, h2 is the bottom surface 1 for connection
This is the distance from 0 to the upper end of the rising wall surface 11a.
Further, the slope of the other rising wall surfaces 11b is gentler than that of the rising wall surfaces.

<Effects of the invention> Since the button-shaped battery storage tray of this invention is constructed as described above, even when the trays are stacked and packed after storing the batteries, the overall thickness of the stacked trays is always the same, regardless of the battery type stored. This makes it possible to standardize gift boxes, significantly standardize packaging specifications, and eliminate the need for spacers, etc. For this reason. This has the effect of facilitating handling and reducing costs during packaging work. In addition, even when the batteries in the stacked trays are cleaned using automatic machines, or when the entire stacked trays are transported for storage, the thickness of the entire tray is uniform regardless of the battery model. Therefore, there are advantages such as ease of designing the machines and jigs to be used.

[Brief explanation of the drawing]

Figures 1A and B are explanatory diagrams of the technical idea of this invention.
Fig. 2 is a sectional view showing the battery storage section in an embodiment of this invention, Fig. 3A is a plan view showing another embodiment, and Fig. 3B is a sectional view taken along line A-F in Fig. 3A. , FIG. 4 is an explanatory diagram of a conventional example. 1, 4, 7...Tray, 2, 5...Bottom, 3,
6, 9, 11a, 11b... rising wall surface, 8...
Circular bottom surface, 10...bottom surface for connection.

Claims (1)

[Claims for Utility Model Registration] 1. A flat tray for accommodating a plurality of button batteries, which has a bottom surface and a rising wall surface following the bottom surface, with a part of the rising wall surface being sloped more than the other part. The angle (θ) between the part of the rising wall surface and the vertical line is defined by the following formula: 0<θ<tan ^-1 (t/h) t: material thickness of the tray n: from the bottom to the top of the rising wall surface A button-shaped battery storage tray characterized by having a range determined by the distance. 2 The bottom surface is composed of a large number of circular bottom surfaces formed to have a diameter slightly larger than the battery diameter, and connecting bottom surfaces formed between the circular bottom surfaces, and a rising wall surface continuing from the connecting bottom surfaces and a vertical line. The button-shaped battery storage tray according to claim 1, characterized in that the angle formed is within the range determined by the following formula. 3. The button according to claim 2 of the utility model registration claim, characterized in that the angle formed between one of the facing rising wall surfaces following the connecting bottom surface and a vertical line is within the range determined by the following formula: Shape battery storage tray.