JPH0449067Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a ventilation fan packaging box for packaging a ventilation fan, which has a front cover at the front end of a rectangular cylindrical frame portion.

[Conventional technology]

Conventionally, ventilation fans that have a front cover that protrudes outward from the frame at the front end of a rectangular cylindrical frame are packed with rigid paper such as corrugated paper or cardboard, or foam, so that the ventilation fan is pushed in from the side. A cushioning material made of resin or the like is attached, and the entire cushioning material is packed into an outer box made of corrugated paper or the like. There are various types of buffer members, but the most widely used type is one made by folding rigid paper and assembling it into a three-dimensional structure. However, in any case, in the past,
As disclosed in No. 20540, the outer box and the shock absorbing member are separate and must be manufactured and handled separately. Therefore, packaging work is complicated and difficult to fully automate, and when automation (mechanization) is attempted, the equipment becomes extremely complex and troubles often occur. In addition, when storing and handling packaging materials, the outer box and cushioning material are separate, so there are many inconveniences, such as a large space being required and the need to be careful about the number of items. The problem with Tatsute was that it produced a relatively large amount of waste wood.

[Summary of the idea]

The present invention was developed with the aim of solving the problems and inconveniences of the conventional methods described above, and includes an integrated buffer structure that cushions the ventilation fan in a part of the box for packing the ventilation fan. To provide a ventilation fan packaging box that can be made into a single unit and ready for packaging with simple operations, is easily compatible with packaging automation, is easy to handle and store, and produces almost no waste materials during manufacturing. be.

[Example of idea]

Next, the configuration of the present invention will be specifically explained based on an embodiment shown in the drawings.

Packaging box 1 as an application example of the present invention shown in the drawing
is a well-known fan having a front cover (a structure on the suction side of a ventilation fan, also called an oil pan) 3 at the front end of a rectangular cylindrical frame part 2 that protrudes more radially than the frame part 2. It is used for packaging the ventilation fan 4 of the type shown in the figure, and consists of a box structure 5 in which the ventilation fan 4 is packed, and a one-to-one set of buffer structures 6 that stabilize the ventilation fan 4 and perform a buffering function. Its unique feature is that it takes the form of a single sheet of rigid paper when unfolded. That is, the packaging box 1 is made of a sheet obtained by punching out a piece of rigid paper such as corrugated paper or cardboard, and a part thereof is integrally provided with the buffer structure 6.
The sheet has four side surface forming surfaces 7 that form the circumferential side of the box, and four lid flaps 8 that form the lid surface.
and the four bottom flaps 9 that make up the bottom surface,
A ruled line 10 for bending is provided in a row as a boundary, and a gluing margin 11 is also provided in a row on the outermost surface of the side surface forming surface 7. This is the unfolded form of a rectangular box consisting of ruled lines 10 and notches 12, and all the ruled lines 10 shown in solid lines in FIG. It is a rectangular box with a lid and a bottom. However, the sheet does not necessarily have to have a lid surface composed of four lid flaps 8 and a bottom surface composed of four bottom forming surfaces 9 as shown in the figure.

The buffer structure 6 contacts a rectangular cover receiving surface 13 that receives the back surface of the front cover 3 of the ventilation fan 4 and one side of the frame portion 12, holds this, and supports the cover receiving surface 13 almost horizontally within the box. A support surface 14 that stands vertically, and a ruled line 1 that is formed in a band shape on both sides of the cover receiving surface 13 and the supporting surface 14 and forming a boundary between the cover receiving surface 13 and the supporting surface 14.
A bent portion 15 is provided at the intermediate portion closer to the support surface 14 than the bending portion 15.
It is composed of a pair of retaining bands 16 having a width of 16 and a rectangular gluing margin 17 formed at the free end, and the developed shape as a whole is a rectangular flat plate with a width approximately corresponding to the width of the side forming surface 7. This buffer structure 6
In this case, the two bottom flaps 9 that face each other are made small and have the same size as the cover receiving surface 13, and are integrally formed in an extended form. That is, on the outer edge of the small bottom flap 9 there is a supporting surface 1.
4 are arranged in a row, and the cover receiving surface 13 is also continuous. The retaining band 16 of the buffer structure 6 has a structure in which the bent part 15 protrudes inward from the support surface 14, and the three-dimensional buffer structure 6 is attached to the frame part 2 of the ventilation fan.
Two opposing surfaces of the holding band 16 are held by the support surface 14, and the other two sides are held by the inner end surface 18 of the bent portion 15 of the holding band 16. That is, the buffer structure 6 in the expanded form is a simple rectangle consisting of two cutting lines 19 running in parallel in the vertical direction and four bending lines 10 that are all arranged in the horizontal direction, and has a hole to be penetrated. Does not include any windows. In addition, ruled line 10
Of these, the part indicated by a dotted line in the figure forms a gluing margin 17 at the free end of the buffer structure 6, and is not a mountain fold but a valley fold.

The packaging box 1 configured in this way has a buffer structure 6.
If the combined sheets are folded in the same way as a normal box, a one-to-one pair of buffer structures 6 will be formed three-dimensionally facing each other, and a part for housing the ventilation fan 4 will naturally be formed. It will become. That is, after the sheet is bent and formed into a box, two opposing buffer structures 6 are formed inside.
Glue allowance 17 is adhered to the inner surface of side surface forming surface 7, and ventilation fan 4 is installed in the space formed by each buffer structure 6.
Packing is completed by putting the items in from the top and binding the whole thing with tape or belts. The work of constructing the packaging box 1 from the unfolded packaging box 1 is similar to the box-making work by simple folding and mounting, and is a simple problem that requires special attention whether it is done by hand or by machine. There are no points. Therefore, not only is it possible to automatically pack the ventilation fan 4 using a device with a relatively simple and trouble-free mechanism, but the main materials for packaging can be handled as a single unit, so no space is required for storage. . Further, there is no need to pay attention to the quantity of packaging materials, and it is possible to plan for overall cost reduction and simplification of packaging work. Furthermore, since the overall structure does not include any structures that can be completely extracted, such as holes or windows, the proportion of waste materials produced during manufacturing is low, and costs can be reduced.

[Effect of idea]

As is clear from the above description of the embodiments, the ventilation fan packaging box of the present invention has a one-to-one set of buffer structures that keep the ventilation fan inside the box in a buffered state, in a part of the unfolded shape of the box in which the ventilation fan is packed. The buffer structure consists of a cover receiving surface that receives the front cover of the ventilation fan, a support surface that holds the outer periphery of the frame part, and a retaining band, so it can be easily folded by a simple bending operation in normal box making work. Not only is it possible to obtain a box body with excellent shock absorbing properties with high binding properties, but also it is possible to eliminate cumbersome processes such as assembling and installing shock absorbing members during packaging work, significantly simplifying the packaging work. It can be made into something. Furthermore, with regard to packaging automation, the mechanism of the device can be made simple and less troublesome. Furthermore, it is easy to store and handle because it can be handled as a single unit, and the proportion of waste materials produced during manufacturing is small, so it is possible to realize a significant reduction in packaging costs as a whole.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing a packaging box in an unfolded state as an application example of the present invention, and FIG. 2 is a longitudinal cross-sectional view showing the packaging form. In the figure, 1 is a packaging box, 2 is a frame part, 3 is a front cover, 4 is a ventilation fan, 6 is a buffer structure, and 7
9 is a side forming surface, 9 is a bottom flap, 13 is a cover receiving surface, 14 is a supporting surface, 15 is a bent portion, and 16 is a retaining band. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] Of the four bottom flaps 9 that form the bottom connected to each end of the four continuous side surface forming surfaces 7 in the developed shape of a box with a bottom and a lid made of rigid paper, these flaps face each other when the bottom is formed. For two sides,
A cover receiving surface 13 that receives the back surface of the front cover 3 of the ventilation fan 4, and a rectangular cylindrical frame of the ventilation fan that is continuous with this cover receiving surface, supports the cover receiving surface almost horizontally, and projects to the rear of the front cover 3. A support surface 14 that contacts and holds the circumferential surface of the portion 2, and a band-shaped band formed on both sides of the cover receiving surface 13 and the support surface 14 and having a bent portion 15 in the middle. Each of the buffer structures 6, which have a flat expanded shape and a retention band 16, is integrally formed in an extended form, and the retention band 16 of each buffer structure 6 has its bent portion 15 protruding inwardly from the support surface. , the peripheral side of the frame part 2 that does not come into contact with the support surface 14 is held by the inner side end surface of the bent part 15, and two opposing buffers formed inside the rigid paper sheet are bent and formed into a box. A ventilation fan packaging box characterized in that the adhesive margin 17 of the structure 6 is bonded to the inner surface of the side surface forming surface 7.