JPS5917820Y2 - packaging equipment - Google Patents

Description

[Detailed description of the invention] The present invention is a packaging device that is most suitable for packaging electronic devices etc. that are vulnerable to vibrations, shocks, etc. The present invention particularly relates to the locking of the cushioning body and the cylindrical frame of a device composed of a cushioning body and a cylindrical frame formed of corrugated paper or the like wound around the outer periphery of the cushioning body.

As a packaging device of this kind, the applicant of the present application had previously applied for Utility Application No. 53-1.
No. 50074 and Utility Model Application No. 152557/1983 have been filed, but in both of these earlier applications, locking parts or locking pieces that are molded or processed separately from the cylindrical frame are used.
The structure was such that the buffer body and the cylindrical frame were engaged with each other.

Therefore, these earlier designs had a large number of parts, resulting in high costs and a lot of time and effort in packaging.

The present invention was devised to correct the above-mentioned defects, and it is possible to reliably lock the shock absorber and the cylindrical frame, without using any separate parts, and with an extremely simple structure.
It is also an attempt to provide a product that is easy to package and intercolor.

Embodiments of the present invention will be described below with reference to the drawings.

First, FIG. 1 shows a cylindrical frame 1 developed.

This cylindrical frame 1 is made of corrugated paper, various thick papers, plastic sheets, etc., and consists of a bottom plate part 2, a side plate part 3, a top plate part 4, etc. from the left end in the figure. The side plate portion 5 constitutes a band-shaped sheet integrally connected via folding lines 6, 7.8.

An insertion piece 9 is integrally connected to the free end of the bottom plate portion 2 via a folding line 10.

Further, a bent piece 1 having a slit 11 at the free end of the side plate portion 5
2 are integrally connected via a folding line 13.

A pair of concave protrusions 15 are integrally formed at both ends of the pair of side plates 3 and 5 of the cylindrical frame 1, respectively, by a pair of mutually parallel notches 14.

Note that these cuts 14 correspond to each pair of folding lines 6.7 and 8.
, 13 at right angles, and these bending lines 6,
7, 8, and 13, and extends to a predetermined length to include the bottom plate portion 2, top plate portion 4, and bent piece 12 portion.

A folding line 16 is provided between both ends of each pair of notches 14.
17 is formed.

Further, a folding line 18 is also formed at the center of each concave protrusion 15 .

However, the bending direction of this folding line 18 is opposite to the bending direction of the other folding lines.

Each of the concave protrusions 15 has a cut-and-raise protrusion formed by a substantially U-shaped cut 19 on the side of the center folding line 18 thereof.

Further, a hole 21 for inserting a fingertip is formed on the tip side of the protruding piece 20.

As shown in FIG. 2, this cylindrical frame 1 is sequentially bent at folding lines 6, 7, 8, 10 and 13, and the insertion piece 9 is inserted into the slit 11 and locked. It is assembled into a rectangular tube shape.

Note that in this assembled state, each pair of folding lines 6, 7 and 8, 13 becomes two ridges in the present invention, and each pair of notches 14 is formed astride these two ridges. When the central part of each concave protrusion 15 is pushed inside the cylindrical frame 1 in the assembled state, the concave protrusion 1
5 is the bending line 16, 6, 18, 7.17 and 16,8゜1
It is configured to be bent in a zigzag shape at the 8.13.17 portions and recessed inside the cylindrical frame 1.

Next, in FIG. 3, reference numeral 23 denotes a pair of left and right shock absorbers, which are supported by foamed polystyrene or other various elastic members.

In Naoko, each buffer body 23 is constructed by stacking a pair of upper and lower halves 23 a and 23 b from above and below.
A structure in which these half bodies 23 a and 23 b are integrally molded may be used.

The pair of buffer bodies 23 are fitted into both left and right ends of an object to be packaged 25 such as an electronic device through recesses 24 formed on these opposing surfaces, and hold the object to be packaged 25 .

Therefore, both sides of both buffer bodies 23 have approximately triangular shapes,
and a pair of recesses 2 having opposite slopes at both upper and lower ends.
6 is molded.

Further, on the surface 27 perpendicular to each recess 26, the recess 26 is
A hemispherical convex portion 28 facing the innermost position of is integrally molded.

Next, the packaging procedure will be explained with reference to FIGS. 4 and 5.

First, as shown in FIG. 3, a pair of buffer bodies 23 are fitted and held at both left and right ends of an object 25 to be packaged, and this is placed inside the cylindrical frame 1 assembled into a rectangular tube shape with holes as shown in FIG. insert.

However, in this case, the concave protrusion 15 is attached to the cylindrical frame 1 as shown in FIG.
The above-mentioned insertion is easily performed without recessing the device.

Next, as shown in FIG. 4, each concave protrusion 15 is pushed into the inside of the cylindrical frame 1, and is fitted into each concave portion 26 of each buffer body 23.

As a result of the above, the buffer body 23 is locked in the cylindrical frame 1 by the concave projections 15, and packaging is completed.

However, at this time, each circular protrusion 15 is pushed in and hooked on the convex portion 28 as shown in FIG. 4, thereby preventing the concave protrusion 15 from returning to the outside, thereby ensuring the above-mentioned locking function.

In addition, when interpolating, insert your fingertips into each hole 21 and press each protrusion 20.
When the protruding pieces 20 are pulled outward as shown in FIG.
The latching between the cylindrical frame body 1 and the cylindrical frame body 1 is released, and both the buffer bodies 23 and the packaged object 25 can be easily extracted from the cylindrical frame body 1.

In the above embodiment, when forming the concave protrusion 15 on the open end portion of the cylindrical frame 1, only one cut 14 is required.

As described in the embodiments below, according to the present invention, a concave shape is formed integrally with a cylindrical frame by a cut spanning two edges of the cylindrical frame, and is recessed into the inside of the cylindrical frame. Since the shock absorber is configured to be locked with the protrusion, there is no need to use any separate parts to lock the shock absorber and the cylindrical frame as in the past.

Therefore, the number of parts is reduced compared to the conventional method, which reduces costs and reduces packaging work.
Packaging efficiency can be significantly improved.

Furthermore, during packaging, after inserting the buffer into the cylindrical frame, the concave protrusions are recessed into the inside of the cylindrical frame to achieve the above-mentioned locking, and when intercoloring, the concave protrusions are pulled out to the outside. Since the buffer body can be removed from the cylindrical frame, packaging and intercoloring operations can be performed very easily.

Moreover, according to the present invention, the cylindrical frame is provided with only one pair of concave protrusions for one buffer body, and each buffer body is also provided with only one pair of concave portions. Both the body and the buffer body have extremely simple structures and are very easy to manufacture.

Further, according to the present invention, the concave protrusion fitted into the concave portion of the buffer body is locked to the convex portion provided on the buffer body, thereby preventing the concave protrusion from returning to the outside, and thereby connecting the buffer body and the cylindrical shape. Since the structure has a perfect locking function with the frame, the shock absorber and the cylindrical frame can be separated from each other if the concave protrusion unexpectedly comes off outside the concave part due to vibration or shock after packaging. It is possible to reliably prevent such inconveniences and provide a highly reliable packaging device.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a developed plan view of the cylindrical frame, Fig. 2 is a perspective view of the same fully assembled state, and Fig. 3 is a perspective view of the buffer body. Figures 4 and 5
The figure is a perspective view showing how the buffer body and the cylindrical frame are locked and unlocked.

Claims (1)

[Scope of utility model registration request] In a device consisting of a pair of cushioning bodies that fit and hold an object to be packaged, and a cylindrical frame that wraps around the outer periphery of the cushioning bodies, the cylindrical frame is integrated by a cut spanning two edges of the cylindrical frame. A pair of concave protrusions formed to be recessed into the inside of the cylindrical frame are provided on both side surfaces of the buffer bodies at opposite positions, respectively. is provided with a pair of recesses into which each pair of concave protrusions is fitted and a convex portion that locks the fitted concave protrusions, and each pair of concave protrusions is connected to each pair of both buffer bodies. A packaging device, characterized in that the concave protrusion is fitted into the concave portion and the fitted concave protrusion is locked to the convex portion.