Special receptacle or package – Shock protection type – With yieldable retainer
Reexamination Certificate
1999-09-13
2001-02-13
Bui, Luan K. (Department: 3728)
Special receptacle or package
Shock protection type
With yieldable retainer
C206S320000, C206S723000
Reexamination Certificate
active
06186330
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a shock absorber, and particularly to a shock absorber mounted in a storage box or packaging box.
2. Description of the Related Art
A corrugated cardboard cushion has been used to moderate damages to a product due to falling of a packaging box or storage box when the product is distributed while accommodated in the packaging or storage box.
FIG. 1
is a perspective view showing a conventional corrugated cardboard cushion.
The corrugated cardboard cushion comprises a flat face portion
101
for supporting a product (not shown), and side face portions
103
,
105
linked to both the sides of the flat face portion
101
. When a projecting portion of the product interferes in (locally abuts against) the flat face portion
101
, holes
107
,
109
, for example, are formed in the flat face portion
101
to avoid such interference. When an external force is applied to the product in a direction indicated by an arrow in
FIG. 1
, the flat face portion
101
of the corrugated cardboard cushion is folded in accordance with the external force, whereby the corrugated cardboard cushion exhibits its shock absorption effect.
FIG.
2
(A) is a perspective view showing another conventional corrugated cardboard cushion, and FIG.
2
(B) is an exploded perspective view of the corrugated cardboard cushion of FIG.
2
(A). The corrugated cardboard cushion shown in FIGS.
2
(A) and
2
(B) comprises a flat face portion
101
on which a product (not shown) is put, side face portions
103
,
105
linked to both the sides of the flat face portion
101
, and side face portion
111
and
113
which are perpendicularly linked to each of the flat face portion
101
and the side face portions
103
and
105
, the side face portions
111
and
113
having linear end portions
111
a
and
113
a
on which the product is actually put. When an external force is applied to the product in an direction indicated by an arrow in FIG.
2
(A), the side face portions
111
,
113
having the linear end portions
111
a
,
113
a
are crushed, thereby exhibiting a shock absorption effect.
In the corrugated cardboard cushion shown in FIG.
1
and other conventional similar corrugated cardboard cushions, the product is supported on the flat face portion
101
of the cushion while the projecting portions of the product are inserted into the holes
107
,
109
to avoid the interface (local abutting), thereby exhibiting the shock absorption effect on the product. Therefore, when a product having a number of projecting portions is mounted on such a corrugated cardboard cushion, the number of clearance portions such as holes or the like is increased, so that it is difficult to exhibit the shock absorption effect.
In the corrugated cardboard cushion shown in FIGS.
2
(A) and
2
(B) and other conventional similar corrugated cardboard cushions, when an external force is applied to a product, the side face portions
111
,
113
having the linear end portions
111
a
,
113
a
are crushed, thereby exhibiting the shock absorption effect on the product. However, it is difficult to crush the linear end portions (
113
a
,
113
b
,
111
a
,
111
b
) stably, so that dispersion of the absorption effect is liable to occur.
FIG.
3
(A) is a cross-sectional view showing a part of an arrangement of a corrugated cardboard cushion and a product when the product is put on the side face portions having linear end portions of the cushion. FIG.
3
(B) is a cross-sectional view showing a state where the side face portions are ideally crushed due to an external force applied to the product shown in FIG.
3
(A), whereby the cushion exhibits a shock absorption effect on the product. FIG.
3
(C) is a cross-sectional view showing a state where the side face portions tilt and fall due to an external force applied on the product and thus no shock absorption effect is exhibited on the product.
As shown in FIG.
3
(B), for example when an external force is applied to a product
115
due to falling of a packaging box or the like, the sufficient shock absorption effect could be exhibited if the side face portions
113
are crushed in parallel to the side faces thereof. However, in many cases, the side face portions
113
tilt and fall as shown in FIG.
3
(C) and thus no sufficient shock absorption effect is exhibited.
SUMMARY OF THE INVENTION
It is therefore an object of the.present invention to provide a shock absorber which resolves the above-mentioned problem.
According to an aspect of the present invention, there is provided a shock absorber which is accommodated in a storage box and comprises: a main body portion for mounting thereon a product to be accommodated in the storage box; at least one shock absorption portion which is provided to the main body portion and supports the product to be accommodated in the storage box; and a shock absorption guide portion which is provided to the main body portion and guides the shock absorption portion when the shock absorption portion is deformed.
According to another aspect of the present invention, there is provided a shock absorber which is accommodated in a storage box and comprises: a main body portion designed to have a substantial frame structure and having a recess for mounting therein a product to be accommodated in the storage box; at least one shock absorption portion which is provided to the main body portion and supports the product to be accommodated in the storage box; and a shock absorption guide portion which is provided to the main body portion and guides the shock absorption portion when the shock absorption portion is deformed.
REFERENCES:
patent: 1929918 (1933-10-01), Dreyer et al.
patent: 2984399 (1961-05-01), Gaulke
patent: 4840277 (1989-06-01), Waldner
patent: 5339958 (1994-08-01), Taravella et al.
patent: 5341934 (1994-08-01), Hsu
patent: 5398808 (1995-03-01), Chen et al.
patent: 5772025 (1998-06-01), Chen et al.
patent: 5979659 (1999-11-01), Kataoka
Bui Luan K.
Maioli Jay H.
Sony Corporation
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