JP3460791B2 - Ventilation fan packaging structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilating fan packaging structure, and more particularly to a ventilating fan packaging structure effective for protecting a square frame member of a ventilation fan.

[0002]

2. Description of the Related Art Conventionally, as a ventilation fan packaging structure,
For example, the structure disclosed in Japanese Utility Model Publication No. 62-1113 or the structure shown in FIG. 20 is known.

The ventilation fan packaging structure shown in FIG. 20 is realized by a rectangular frame holder 10, a motor holder 12, and an outer box 14. The ventilation fan 16 includes a square frame member 18.
A motor 20 is fixed to the back surface of the rectangular frame member 18.
Further, an impeller 20 is fixed to the rotation shaft of the motor 20.

The square frame holder 10 is provided with a cardboard frame 24 having an angled cross section on each side, and styrene corner holders 26 arranged at the four corners of the frame 24. The motor holder 12 is composed of a double-folded cardboard. Two protrusions 28 and 30 having a trapezoidal cross section and a motor housing 32 formed between them are formed in the center of the motor holder 12.

The ventilation fan 16 is housed in the outer box 14 made of cardboard while being sandwiched between the square frame holder 10 and the motor holder 12. At this time, the square frame member 18 of the ventilation fan 16
Each of the four corners is gripped by the corner holder 26. Further, the motor 20 of the ventilation fan 16 is fitted in the motor housing 32. According to the above structure, the ventilation fan can be stably stored inside the outer box 14. Further, according to the above structure, it is possible to prevent the stress applied to the outer box from being concentrated and acting on the local portion of the ventilation fan 16. Therefore, according to the above structure, it is possible to effectively prevent the ventilation fan 16 from being deformed during the distribution process.

[0006]

By the way, the ventilation fan 16
The packaging structure is required to be able to easily carry out the packaging work, have a sufficient cushioning capability, and be easily recycled or disposed of.
However, in the conventional ventilation fan packaging structure described above, a desired cushioning capacity is ensured by using the corner holder 26 made of styrene. For ease of recycling or disposal, it is desirable that the components used in the packaging structure be composed of a single material. In this respect, the conventional structure is not always a suitable packaging structure in order to obtain excellent recyclability or excellent disposal property.

The present invention has been made in order to solve the above problems, and provides a ventilation fan packaging structure which can be realized only by a corrugated cardboard material and has sufficient cushioning ability and excellent workability. The purpose is to provide.

[0008]

According to a first aspect of the present invention, there is provided a ventilation fan packaging structure including a square frame member having a ventilation opening, a motor fixed to the back side of the square frame member, and a rotation of the motor. A ventilation fan packaging structure for packaging a ventilation fan comprising an impeller rotatably disposed near the ventilation opening by an axis, the holding surface having a projection surface substantially equal to the square frame member, and A rectangular frame portion that surrounds the holding surface, and a square frame holder that is composed only of cardboard material; and a fitting recess that holds the protrusion of the motor,
And a motor holder composed only of cardboard material,
The ventilating fan is provided with an outer box made of cardboard which is housed in a state of being sandwiched between the square frame holder and the motor holder, and an inner vertical surface of the tubular edge frame portion is a normal direction of the holding surface. It is inclined to the outside.

According to a second aspect of the present invention, there is provided a ventilation fan packaging structure in which a normal direction of the holding surface is such that an outer surface of the cylindrical edge frame portion has a trapezoidal sectional shape. Is inclined inwardly with respect to.

According to a third aspect of the present invention, there is provided a ventilating fan packaging structure, comprising a plurality of cardboard boxes which are disposed on the holding surface of the square frame holder and are interposed between the square frame member and the holding surface of the ventilating fan. A cushioning member is provided. In addition, according to the present invention
The ventilation fan packaging structure according to claim 4 has a ventilation opening.
Square frame member and motor fixed to the back side of the square frame member
And the vicinity of the ventilation opening by the rotation shaft of the motor.
And an exhaust fan that is rotatably arranged in the
A ventilation fan packaging structure to be installed, which is almost the same as the square frame member.
Holding surface having a new projection surface and a cylinder surrounding the holding surface
-Shaped edge frame portion, and the holding surface and the edge frame portion
Is composed of a single cross-shaped cardboard sheet,
The edge frame portion is a periphery of the holding surface of the cardboard sheet.
And angular frame holder configured by winding a portion of the circumference, before
A fitting recess for holding the protruding portion of the motor is provided and
A motor holder composed only of corrugated board material and the ventilation
The fan is sandwiched between the square frame holder and the motor holder.
And an outer box cardboard for accommodating at state, said angle frame Hol
And a square frame member of the ventilation fan and
A plurality of cardboard cushioning members interposed between the holding surface
And are provided.

In the ventilation fan packaging structure according to a fifth aspect of the present invention, the plurality of cushioning members are formed by bending a part of a cardboard extending to the holding surface.

According to a sixth aspect of the present invention, there is provided a ventilation fan packaging structure in which the plurality of cushioning members are formed by further bending a peripheral edge portion of a portion forming the edge frame portion of a cardboard forming the square frame holder. It is what is done.

In a ventilation fan packaging structure according to a seventh aspect of the present invention, the plurality of cushioning members are formed by adhering separate members made of cardboard to the holding surface.

According to an eighth aspect of the present invention, there is provided a ventilation fan packaging structure in which the separate member is a first cardboard member having a tubular cushioning member formed by bending at both ends, or a tube formed by bending. This is a second cardboard member that is provided with upper and lower members on the left, right, top, and bottom.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. It should be noted that elements common to each drawing are denoted by the same reference numerals, and redundant description will be omitted.

Embodiment 1. FIG. 1 shows a ventilation fan 34 packaged by the packaging structure according to the first embodiment of the present invention, and
The perspective view of the component used for the packaging structure of this embodiment is shown. The ventilation fan 34 includes a square frame member 36 having a flat rectangular shape. The square frame member 36 is provided with a ventilation opening 37. A motor 38 is provided on the back side of the square frame member 36.
Is fixed. An impeller 40 that rotates at the ventilation opening 37 is fixed to the rotation shaft of the motor 38.

Various stresses may be applied to the ventilation fan 36 during its distribution process. Due to such stress, the ventilation fan 36 is likely to be deformed such as a dent at the corner portion or the outer peripheral portion of the square frame member 36. For this reason, the packaging structure of the ventilation fan 36 is required to have a cushioning capacity capable of effectively preventing the deformation thereof. In addition, the packaging structure of the ventilation fan 36 is required to have excellent workability capable of realizing an appropriate state with simple work.

Further, the components used for packaging the ventilation fan 36 are not needed at the stage when the distribution process is completed. Therefore, it is desirable that those constituent elements have excellent recyclability and disposal property. The ventilation fan packaging structure of the present embodiment is characterized in that it uses only a cardboard material as a base material and satisfies the various requirements described above.

As shown in FIG. 1, a square frame holder 42 is used in the ventilation fan packaging structure of this embodiment. FIG. 2 shows a development view of the square frame holder 42. The rectangular frame holder 42 is realized by subjecting the cardboard material 44 having the shape shown in FIG. 2 to an appropriate bending process. The cardboard material 44 is
It has a square central portion 46 and four edge portions 48 extending vertically and horizontally to the central portion 46.

At the edge portion 48, three mountain folding ruled lines 50,
52, 54 and one valley-folded ruled line 56 are provided. The marginal portion 48 is formed by the ruled lines on the outer side surface 5
8, a top surface 60, an inner side elevation surface 62, and a joint surface 64. In the rectangular frame holder 42, the edge portion 48 is mountain-folded along the mountain fold ruled lines 50, 52 and 54, and is valley-folded along the valley fold ruled line 56, and the joint surface 64 is bonded to the central portion 46 by an adhesive. It is formed by bonding.

FIG. 3 shows a plan view of the rectangular frame holder 42.
4 shows a cross-sectional view obtained by cutting the rectangular frame holder 42 along the line IV-IV shown in FIG. As shown in FIGS. 3 and 4, the square frame holder 42 includes
8, an edge frame portion 65 formed by the top surface 60 and the outer side elevation surface 62 is formed. A holding surface 66 is formed on the inner peripheral side of the edge frame portion 65. The holding surface 66 has the same projected shape and projected area as the square frame portion 36 of the ventilation fan 34.

Each edge 68 of the edge frame portion 65 has an inclination of 45 °, and the mating portion of the edge frame portions 65 is formed at a right angle. According to the above structure, the square frame holder 42
The stress applied to one of the edge frame portions 65 of the
5 can be transmitted to the other edge frame portion 65 adjacent to 5, that is, the stress applied to the corner frame holder 42 can be shared by the entire edge frame structure. Therefore, according to the corner frame holder 42, excellent cushioning ability can be secured without adhering the mating portions of the adjacent edge frame portions 65.

As shown in FIG. 4, the outer elevation surface 58 of the edge frame portion 65 is provided with an inclination angle that is inclined inward by α ° with respect to the normal direction of the holding surface 66. On the other hand, the edge frame portion 65
An inclination angle that is inclined outward by β ° with respect to the normal direction of the holding surface 66 is provided on the inner side elevation surface of the. As a result, the cross-sectional shape of the edge frame portion 65 is trapezoidal.

As shown in FIG. 1, a motor holder 70 is used in the packaging structure of this embodiment. Motor holder 70
Is provided with a cardboard seat 72 having an area substantially equal to that of the rectangular frame holder 42. Cardboard laminates 74 and 76 are adhered to the sea and 72. The motor holder 70 is used such that the laminated body 74 is located on the top side and the laminated body 76 is located on the ground side in the packaged state.

A fitting recess 78 for fitting the motor 38 of the ventilation fan 34 is formed between the two laminated bodies 74 and 76. The laminated body 76 is formed larger than the laminated body 74. The side surface of the laminated body 76 on the side of the fitting recess 78 is formed in an arc shape that matches the outer shape of the motor 38.

In the work process for realizing the packaging structure of the present embodiment, first, the ventilation frame 34 is mounted with the square frame holder 42 from the side of the impeller 40 so that the square frame member 36 is fitted to the holding surface 66. , And from the motor 38 side, the motor 38
The work of mounting the motor holder 72 is performed so that the motor holder 72 fits into the fitting recess 78. After the above work, the ventilation fan 36
Is inserted into the outer box 80 while being sandwiched between the square frame holder 42 and the motor holder 72. The ventilation fan 36, the square frame holder 42, and the motor holder 72 are housed inside the outer box 80 in a state of being in close contact with each other. The packing work of the ventilation fan 36 is then completed by closing the lid flap of the outer box 80 and sealing.

FIG. 5 is a view showing a cross section of the ventilation fan packaging structure realized by the above-described work, as viewed from the direction of arrow V shown in FIG. As shown in FIG. 5, according to the packaging structure of the present embodiment, the four corners and four sides of the square frame member 36 of the ventilation fan 36 are surrounded by the edge frame portion 65. Since the edge frame portion 65 has a hollow structure, when a stress acts on the outer box 80, the edge frame portion 65 exerts a buffering effect of absorbing the stress. Therefore, according to the packaging structure of the present embodiment, the rectangular frame member 36 is distributed during the distribution process of the ventilation fan 36.
Can be properly protected.

Further, according to the above packaging structure, the motor 3
8 is kept stable between the two stacks 74,76. Therefore, during the distribution process, the motor 38 is stably buffered and protected inside the outer box 80. As described above, according to the ventilating fan packaging structure of the present embodiment, the ventilating fan 36 is used in the distribution process while using the constituent elements having only the cardboard material as the base material.
It is possible to ensure the necessary buffering capacity to protect the.

When the constituent elements for realizing the ventilation fan packaging structure are composed only of cardboard materials, they can be easily recycled or disposed of. Therefore, according to the ventilation fan packaging structure of the present embodiment, excellent recyclability and disposal processability can be ensured.

As described above, the rectangular frame holder 42 used in this embodiment has the edge frame portion 65 in which the inner side elevation surface 62 is inclined outward. Inner elevation surface 62 of edge frame portion 65
Is inclined outward, the square frame holder 42 and the ventilation fan 34
The fitting work with can be easily performed.

Further, in this embodiment, the rectangular frame holder 4
The second edge frame portion 65 is provided with an outer rising surface 58 that is inclined inward. When the outer side elevation surface 58 of the edge frame portion 65 is inclined inward, the edge frame portion 65 and the opening of the outer box 80 are less likely to be caught when the square frame holder 42 is inserted into the outer box 80. The above insertion work can be easily performed.

As described above, according to the square frame holder 42, both the fitting work with the ventilation fan 34 and the inserting work into the outer box 80 can be easily performed. Therefore, according to the ventilation fan packaging structure of the present embodiment, excellent workability can be obtained. Further, according to the ventilation fan packaging structure of the present embodiment, the packaging work can be easily mechanized due to the excellent workability described above.

The edge frame portion 65 of the square frame holder 42 can be easily tilted inward or outward when the cross-sectional shape is square. However, when the cross-sectional shape is a trapezoid, the displacement of the top surface 60 is constrained by the inner side elevation surface 62 and the outer side elevation surface 58, so that the tilting of the edge frame portion 65 is effectively prevented. In other words, the edge frame portion 65 exhibits the characteristic of stably maintaining a predetermined shape when the cross-sectional shape is trapezoidal.

The above-mentioned characteristics are advantageous in simplifying the construction of the edge frame portion 65 in a desired state, and at the same time, the edge frame portion 65.
It is advantageous in securing a large strength. For this reason,
According to the ventilation fan packaging structure of the present embodiment, excellent cushioning ability and excellent workability can be obtained as compared with the case where the edge frame portion 65 has a rectangular cross-sectional shape.

Embodiment 2. Next, a second embodiment of the present invention will be described with reference to FIGS. The ventilation fan packaging structure of the present embodiment is realized by using a square frame holder 82 described later in place of the square frame holder 42 in the packaging structure shown in FIG.

FIG. 6 is a developed view of the rectangular frame holder 82 used in this embodiment. The square frame holder 82 is shown in FIG.
It is realized by the cardboard material 84 shown in FIG. The cardboard material 84 includes a central portion 46 and a peripheral portion 48.
In the present embodiment, the central portion 46 is provided with two notch portions 86 and 88 symmetrically. The area surrounded by the cut portions 86 and 88 is divided into an inner upright surface 92, an upper surface 94, an outer upright surface 96 and a lower surface 98 by four mountain fold lines 90.

FIG. 7 is a plan view of the rectangular frame holder 82 used in this embodiment. Further, FIG. 8 shows a square frame holder 82.
FIG. 8 is a cross-sectional view obtained by cutting along the line VIII-VIII shown in FIG. As shown in FIG. 7, the square frame holder 82
Has an edge frame portion 100. Inside the edge frame portion 100, a holding surface 66 having substantially the same projected area as the square frame member 36 of the ventilation fan 34 is formed. Also, the holding surface 66
Two cushioning members 104 and 106 are formed on the top.

The edge frame portion 100 is formed by processing the edge portion 48 shown in FIG. 6 as in the case of the first embodiment. In the present embodiment, the edge frame portion 100
Are formed to have a rectangular cross section as shown in FIG. In addition, the two cushioning members 104 and 106 have the lower surface 92 after holding the lower surface 92 after bending the region surrounded by the notches 86 and 88 in FIG. 6 along the mountain folding ruled line 90.
It is formed by adhering to No. 6.

FIG. 9 is a sectional view of the ventilation fan packaging structure of this embodiment. As shown in FIG. 9, cushioning members 104 and 106
Is formed at a position where a gap of a predetermined length is secured with the edge frame portion 100. In addition, the cushioning members 104, 1
06 is designed to be interposed between the square frame member 36 of the ventilation fan 34 and the holding surface 102 at a predetermined position sandwiching the center line, and to separate the square frame member 36 from the holding surface 102 by a predetermined distance.

The cushioning members 104 and 106 make it possible to increase the strength of the holding surface 102 of the rectangular frame holder 82 and prevent the stress applied to the rectangular frame holder 82 from being easily transmitted to the rectangular frame member 36 of the ventilation fan 34. Can be formed.
The cushioning members 104 and 106 also function as positioning members that determine the positions of the square frame holder 82 when it is mounted on the ventilation fan 34. Therefore, according to the ventilation fan packaging structure of the present embodiment, excellent workability and excellent cushioning capacity can be realized.

By the way, in the above embodiment, the edge frame portion 100 of the square frame holder 82 is assumed to have a rectangular cross-sectional shape, but the present invention is not limited to this, and the square frame holder 82 is not limited thereto. The cross section of the edge frame portion 100 may be trapezoidal as in the case of the first embodiment.

Embodiment 3. Next, a third embodiment of the present invention will be described with reference to FIGS. 10 to 12. The ventilation fan packaging structure of the present embodiment is realized by using a later-described square frame holder 108 instead of the square frame holder 42 in the packaging structure shown in FIG.

FIG. 10 is a developed view of the rectangular frame holder 108 used in this embodiment. Square frame holder 108
Is realized by the cardboard material 110 shown in FIG. The cardboard material 110 is formed with a central portion 46, four edge portions 48, and two expansion portions 112 and 114 integrally provided with a pair of opposing edge portions 48. The extension parts 112 and 114 include three mountain fold lines 116 and 1
The valley fold line 118 of the book connects the connecting surface 120 and the inner surface 1
22, upper surface 124, outer elevation surface 126 and lower surface 128.

FIG. 11 is a plan view of the rectangular frame holder 108 used in this embodiment. FIG. 12 is a sectional view obtained by cutting the rectangular frame holder 108 along the line XII-XII shown in FIG.

As shown in FIG. 11, the rectangular frame holder 82 has a holding surface 130 on the inner peripheral side of the edge frame portion 100. Further, as shown in FIGS. 11 and 12, two cushioning members 132 and 134 are formed above the holding surface 130. The cushioning members 104 and 106 are formed by bending the expanded portions 112 and 114 shown in FIG. 10 along the mountain fold line 116 and the valley fold line 118, and then bonding the connecting surface 120 and the lower surface 128 to the holding surface 130. Has been done.

According to the above-mentioned structure, one corrugated cardboard material 110 is formed without providing the holding surface 130 with a notch.
The rectangular frame holder 108 including the plurality of cushioning members 104 and 106 can be formed using the above as a base material. Holding surface 13
In order to secure a high strength of 0, it is desirable that the holding surface 130 has no notch. Therefore, according to the ventilation fan packaging structure of the present embodiment, it is possible to obtain a more excellent cushioning capacity as compared with the structure of the second embodiment described above.

Fourth Embodiment Next, FIG. 13 and FIG.
Embodiment 4 of the present invention will be described with reference to FIG.
FIG. 13 shows a plan view of the rectangular frame holder 136 used in this embodiment. Further, FIG. 14 shows a cross-sectional view obtained by cutting the rectangular frame holder 136 along the line XIV-XIV shown in FIG. 11. The ventilation fan packaging structure of the present embodiment is realized by using the rectangular frame holder 136 shown in FIGS. 13 and 14 in place of the rectangular frame holder 42 in the packaging structure shown in FIG.

The rectangular frame holder 136 of this embodiment has a pair of cushioning members 138 and 140 on the upper surface of the holding surface 130. The cushioning members 138, 140 are arranged in parallel with each other at a position separated from the edge frame member 100 by a predetermined distance from a pair of laminated bodies having a cardboard as a base material, which is formed as a member different from the cardboard material forming the square frame holder 136. It is realized by bonding. According to the structure described above, the corrugated cardboard material serving as the base material of the rectangular frame holder 136 does not have the expansion portions 112 and 114 as shown in FIG.
It is possible to realize a configuration similar to that of the rectangular frame holder 108 shown in FIG.

Fifth Embodiment Next, a third embodiment of the present invention will be described with reference to FIGS. The ventilation fan packaging structure of the present embodiment is realized by using a square frame holder 142 described later in place of the square frame holder 42 in the packaging structure shown in FIG.

FIG. 15 is a development view of the first cardboard member 144 which is a component of the rectangular frame holder 142 used in this embodiment. First cardboard member 144
Is shaped like a rectangle. First cardboard member 14
In FIG. 4, four mountain-folded ruled lines 146 are provided as targets with the central axis sandwiched therebetween. The area of the first cardboard member 144 is connected to the connecting surface 148, the outer surface 150, the upper surface 152, the inner surface 154, and the lower surface 15 by their mountain fold lines.
It is divided into six.

FIG. 16 is a plan view of the rectangular frame holder 108 used in this embodiment. Further, FIG. 17 shows a cross-sectional view obtained by cutting the rectangular frame holder 142 along the line XVII-XVII shown in FIG.

As shown in FIGS. 16 and 17, the square frame holder 142 has two cushioning members 15 on the upper surface of the holding surface 130.
It is equipped with 8,160. The cushioning members 158 and 160 are
After the first cardboard material 144 shown in FIG. 15 is bent along the mountain folding ruled line 146, the lower surface 156 is connected to the connecting surface 1.
48, and the connecting surface 148 is bonded to the holding surface 130.

According to the structure described above, the two buffer members 158 and 160 can be easily formed on the holding surface 130. Therefore, according to the ventilation fan packaging structure of the present embodiment, excellent productivity can be realized.

Sixth Embodiment Next, FIG. 18 and FIG.
The sixth embodiment of the present invention will be described with reference to FIG.
FIG. 18 shows a rectangular frame holder 1 used in this embodiment.
The development view of the 2nd cardboard member 164 which is a component of 62 is shown. 19 is a plan view of the rectangular frame holder 162 used in this embodiment.

As shown in FIG. 18, the second cardboard member 164 has a connecting surface 166 and four expanding portions 168 extending from the connecting surface 166 in four directions. Each of the expansion portions 168 has four mountain crease lines 146, and thus the outer elevation surface 1
50, an upper surface 152, an inner elevation surface 154 and a lower surface 156.

As shown in FIG. 19, the rectangular frame holder 162 used in this embodiment has four cushioning members 170 to 176 on the upper surface of the holding surface 130. Buffer member 170-
176 is the second cardboard material 144 shown in FIG.
After folding along the mountain folding ruled line 146,
The lower surface 156 of 68 to the connecting surface 166, and the connecting surface 16
6 is bonded to the holding surface 130.

According to the structure described above, the four buffer members 170 to 176 can be easily formed on the holding surface 130. Therefore, according to the ventilation fan packaging structure of the present embodiment, excellent productivity can be realized.

In the square frame holder 142 shown in FIG. 16 and the square frame holder 162 shown in FIG. 19, the base material of the cushioning member formed above the holding surface 130 is the first cardboard member 144 and the first cardboard member 144, respectively. It has the same configuration except that it is two cardboard members 164. Therefore, these two structures can be easily and selectively realized.

In order to obtain sufficient cushioning capacity when the packed ventilation fan 36 has a large weight, the holding surface 1
It is advantageous to increase the number of cushioning members arranged on 30. According to the structure of the square frame holders 142 and 162 described above, the number of cushioning members can be easily changed according to the weight of the ventilation fan 36 to be wrapped. Therefore, according to the ventilation fan packaging structure using the square frame holders 142 and 162, an appropriate packaging structure can be easily realized according to the weight of the ventilation fan 36.

[0060]

Since the present invention is constructed as described above, it has the following effects. Claim 1
According to the invention described above, since the rectangular frame holder, the motor holder and the outer box for packaging the ventilating fan are all made only of the corrugated cardboard material, excellent recyclability and disposal property can be secured. Further, according to the present invention, since the rectangular frame member of the ventilation fan is surrounded by the tubular edge frame member, sufficient cushioning ability can be secured. Further, according to the present invention, since the edge frame portion of the square frame holder has the inner vertical surface inclined outward, the work of mounting the square frame holder on the ventilation fan can be facilitated.

According to the second aspect of the invention, the edge frame portion of the square frame holder has a trapezoidal cross section. When the rectangular frame holder has a trapezoidal cross-sectional shape, the rectangular frame holder can stably maintain a constant shape against external stress and the like. Therefore, according to the present invention, it is possible to secure an excellent buffering capacity.

According to the third or fourth aspect of the present invention, the corner frame member of the ventilation fan and the holding surface of the square frame holder can be separated from each other by the plurality of cushioning members arranged on the holding surface of the square frame holder. . According to the above structure, the strength of the rectangular frame holder is improved, and the stress acting on the rectangular frame holder is difficult to concentrate on the local part of the ventilation fan. Therefore, according to the present invention, it is possible to secure an excellent buffering capacity.

According to the fifth aspect of the present invention, the plurality of cushioning members are constituted by a part of the cardboard extending on the holding surface. According to the above structure, it is possible to easily form the plurality of cushioning members and the square frame holder with a single cardboard.

According to the sixth aspect of the present invention, the plurality of cushioning members are constituted by a cardboard extending further to the peripheral side of the cardboard forming the edge frame portion. According to the above structure, the plurality of cushioning members and the square frame holder can be easily configured by a single cardboard without lowering the strength of the holding surface.

According to the seventh aspect of the invention, the plurality of cushioning members are realized by bonding different members to the holding surface. According to the above structure, it is possible to secure an excellent cushioning ability without complicating the structure of the rectangular frame holder.

According to the invention described in claim 8, the separate member is
The first cardboard member is provided with a pair of tubular cushioning members or the second cardboard member is provided with two pairs of tubular cushioning members. According to the above configuration, an appropriate packaging structure can be selected according to the weight of the ventilation fan.

[Brief description of drawings]

FIG. 1 is a perspective view showing a ventilation fan packaging structure according to a first embodiment of the present invention.

FIG. 2 is a development view of a rectangular frame holder used in the ventilation fan packaging structure according to the first embodiment of the present invention.

FIG. 3 is a plan view of a rectangular frame holder used in the ventilation fan packaging structure according to the first embodiment of the present invention.

FIG. 4 is a cross-sectional view obtained by cutting the rectangular frame holder used in the ventilation fan packaging structure according to the first embodiment of the present invention along the line IV-IV shown in FIG. 3.

FIG. 5 is a cross-sectional view of the ventilation fan packaging structure according to the first embodiment of the present invention.

FIG. 6 is a development view of a rectangular frame holder used in the ventilation fan packaging structure according to the second embodiment of the present invention.

FIG. 7 is a plan view of a rectangular frame holder used in the ventilation fan packaging structure according to the second embodiment of the present invention.

FIG. 8 is a cross-sectional view obtained by cutting the rectangular frame holder used in the ventilation fan packaging structure according to the second embodiment of the present invention along the line VIII-VIII shown in FIG. 7.

FIG. 9 is a sectional view of a ventilation fan packaging structure according to a second embodiment of the present invention.

FIG. 10 is a development view of a rectangular frame holder used in the ventilation fan packaging structure according to the third embodiment of the present invention.

FIG. 11 is a plan view of a rectangular frame holder used in the ventilation fan packaging structure according to the third embodiment of the present invention.

FIG. 12 is a cross-sectional view obtained by cutting the rectangular frame holder used in the ventilation fan packaging structure according to the third embodiment of the present invention along the line XII-XII shown in FIG. 11.

FIG. 13 is a plan view of a rectangular frame holder used in the ventilation fan packaging structure according to the fourth embodiment of the present invention.

FIG. 14 is a sectional view obtained by cutting the rectangular frame holder used in the ventilation fan packaging structure according to the fourth embodiment of the present invention along the XIV-XIV straight line shown in FIG.

FIG. 15 is a development view of a first cardboard member that is a component of a rectangular frame holder used in the ventilation fan packaging structure according to the fifth embodiment of the present invention.

FIG. 16 is a plan view of a rectangular frame holder used in the ventilation fan packaging structure according to the fifth embodiment of the present invention.

FIG. 17 is a cross-sectional view obtained by cutting the rectangular frame holder used in the ventilation fan packaging structure according to the fifth embodiment of the present invention along the line XVII-XVII shown in FIG. 16.

FIG. 18 is a development view of a second cardboard member that is a component of a rectangular frame holder used in the ventilation fan packaging structure according to the sixth embodiment of the present invention.

FIG. 19 is a plan view of a rectangular frame holder used in the ventilation fan packaging structure according to the sixth embodiment of the present invention.

FIG. 20 is a perspective view showing a conventional ventilation fan packaging structure.

[Explanation of symbols]

34 ventilation fan, 36 square frame member, 38 motor, 42;
82; 108; 136; 142; 162 square frame holder,
58 outer surface, 62 inner surface, 65; 100 edge frame part, 66; 102; 130 holding surface, 70 motor holder, 74,76 laminated body, 78 fitting recess, 80 outer box, 86 cut, 104,106 132, 13
4; 138, 140; 158, 160; 170-176.
Cushioning member, 144 First cardboard member, 164
Second cardboard member.

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B65D 5/50 101 B65D 77/26 B65D 85/68

Claims (8)

(57) [Claims] 1. A square frame member having a ventilation opening, a motor fixed to the back surface side of the square frame member, and a rotation shaft of the motor so as to be rotatably disposed near the ventilation opening. An exhaust fan packaging structure for packaging an exhaust fan comprising: an impeller, comprising: a holding surface having a projection surface substantially equal to the square frame member; and a cylindrical edge frame portion surrounding the holding surface, and A square frame holder made only of cardboard material, a fitting recess for holding the protruding portion of the motor, and a motor holder made only of cardboard material, the ventilation fan, the square frame holder and the motor. A cardboard outer box that is housed in a state of being sandwiched between a holder and the cardboard outer box, wherein the inner standing surface of the tubular edge frame portion is inclined outward with respect to the normal direction of the holding surface. Characteristic ventilation fan packaging structure. 2. The outer standing surface of the tubular edge frame portion is inclined inward with respect to the normal line direction of the holding surface so that the cross-sectional shape of the edge frame portion is trapezoidal. The ventilation fan packaging structure according to claim 1, which is characterized in that. 3. A holding surface of the rectangular frame holder,
The ventilation fan packaging structure according to claim 1 or 2, further comprising a plurality of cardboard cushioning members interposed between the rectangular frame member and the holding surface of the ventilation fan. 4. A square frame member having a ventilation opening, a motor fixed to the back surface side of the square frame member, and a rotation shaft of the motor so as to be rotatably disposed near the ventilation opening. a ventilation fan packaging structure for packaging a ventilation fan comprising an impeller, a has a support surface having a substantially equal projection surface and the angle frame member, and a cylindrical edge frame portion surrounding the holding surface, the holding
The surface and the edge frame part are a single cross-shaped cardboard box.
And the edge frame portion is formed of the cardboard box.
A rectangular frame holder configured by winding a portion around the holding surface of the motor, and a fitting recess for holding the protrusion of the motor, and
A motor holder configured only of cardboard material, a cardboard outer box for storing the ventilation fan in a state of being sandwiched between the square frame holder and the motor holder, and a holding surface of the square frame holder. And a plurality of cardboard cushioning members interposed between the square frame member and the holding surface of the ventilation fan. 5. The ventilation fan packaging structure according to claim 3, wherein the plurality of cushioning members are configured by bending a part of a cardboard extending on the holding surface. 6. The buffer member according to claim 3, wherein the plurality of cushioning members are formed by further bending a peripheral edge portion of a portion of the cardboard forming the corner frame holder, the portion forming the edge frame portion. The ventilation fan packaging structure according to 4. 7. The ventilation fan packaging structure according to claim 3, wherein the plurality of cushioning members are configured by adhering separate members made of cardboard to the holding surface. 8. The separate member is a first cardboard member having a tubular cushioning member formed by bending at both ends, or a second cardboard having tubular members formed by bending at top, bottom, left and right. The ventilation fan packaging structure according to claim 7, wherein the ventilation fan packaging structure is a member.