JP2019059537A - Cushioning member - Google Patents

Abstract

To provide a cushioning member which can prevent damage, etc. of the cushioning member securely by protecting projections of a product fully without bringing cost increase and enlargement, and can correspond to a plurality kinds of products where positions of the projections differ, and can reduce a forming cost.SOLUTION: In a cushioning member 1 made of pulp mold which hugs a product where projections are projected from the external surface, cushioning portions 3-6 are integrally formed to surroundings of a cushioning member body 2, a reinforcement portion 7 is provided which is cut and risen from the cushioning member body 2 and is arranged near the projections so as to reinforce the cushioning portions 3-6 of surroundings of the projections, predetermined cutting lines of a plurality of patterns are set to surroundings of the reinforcement portion 7 so as to be able to cut and raise the reinforcement portion 7 in a plurality of directions from the cushioning member body 2, and the reinforcement portion 7 is cut and risen in arbitrary one direction of the plurality of directions, and is arranged near the projection which locates in the arbitrary one direction.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a shock absorbing material.

  For example, in a paper feeder which is added as an option to an image forming apparatus such as a copying machine or a printer, positioning pins as protrusions are vertically protruded on a top surface (upper surface). Then, positioning between the paper feeder and the image forming apparatus main body placed thereon is performed by the positioning pins. Thus, the transport position of the sheet from the paper feeder to the image forming apparatus main body is determined.

  When such a paper feeder is transported or stored, for example, as shown in FIG. 12, both ends (only one end is shown in FIG. 12) of the paper feeder 50 has a pair of pulp mold buffer materials 1 (FIG. 12). (Only one is shown). Then, the paper feeders 50 held in the both cushioning materials 1 are stored and packed in a packing case 12 made of cardboard or the like and transported or stored.

  The cushioning material 1 is integrally formed into a substantially W-shaped cross section by molding a pulp material. Horizontally shaped upper and lower buffer portions 3 and 4 covering the upper and lower surfaces of the end portion of the paper feeder 50 are integrally formed on the upper and lower sides of the buffer material body 2.

  When the cushioning material 1 shown in FIG. 12 is used, the positioning pins 51 protruding perpendicularly to the top surface of the paper feeder 50 are protected by the upper cushioning portion 3 of the cushioning material 1. The buffer distance of the positioning pin 51 by the upper buffer portion 3 in this case is L1 which is the length from the upper surface of the paper feeder 50 to the inner surface of the upper wall of the packing case 12.

  However, when the cushioning material 1 shown in FIG. 12 is used, the upper cushioning portion 3 of the cushioning material 1 and the positioning pin 51 overlap in the vertical direction. Therefore, the buffer distance L1 is relatively short and high buffer performance can not be obtained, and the positioning pin 51 can not be sufficiently protected.

  As shown in FIG. 13, when the upper buffer portion 3 of the buffer material 1 is configured to be applied to the top of the positioning pin 51, a buffer distance L2 larger than the buffer distance L1 shown in FIG. 12 is secured.

  However, in this structure, the cushioning material 1 and the packaging case 12 become large, which leads to an increase in cost and an increase in storage space.

  Therefore, as disclosed in Patent Document 1, the applicant integrally forms a dummy rib on the cushioning material body, cuts a part of the periphery of the rib, and bends the rib to perform the positioning. We developed a technology to move the buffer near the pin and reinforce the buffer around the positioning pin.

JP, 2014-46931, A

According to the structure of the above-mentioned conventional patent document 1, the location of the buffer part which can be reinforced with a reinforcement part is decided to one place, and only the location can be reinforced. Therefore, the cushioning material can not be used for other products having different positions of the projections, and the cushioning material has to be manufactured for each product. As a result, a plurality of molds are required, and the molding cost is high. In addition, the types of cushioning materials increased, and it took time for parts management.
The present invention has been made in view of the above situation, and the object of the present invention is to sufficiently protect the protrusion of a product without any increase in cost and size and to surely prevent the breakage and the like. The present invention is to provide a shock absorbing material which can cope with a plurality of kinds of products at different positions, can reduce molding cost, and can be easily managed.

The present invention is directed to a pulp mold cushioning material that embraces a product with protrusions protruding from the outer surface.
And a buffer part is integrally formed in the circumference of a buffer material body, and it comprises a reinforcement part which is cut and raised from the buffer material body and arranged in the vicinity of the projection to reinforce the buffer section around the projection, the reinforcement A plurality of patterns of planned cutting lines are set around the reinforcing portion so as to be able to cut and raise the portion from the cushioning material main body in a plurality of directions, and the reinforcing portion is cut and raised in any one of the plurality of directions. It is disposed in the vicinity of the protrusion located in any one of the directions.

  According to the present invention, the projections of the product can be sufficiently protected without any increase in cost and size, and the breakage and the like can be reliably prevented, and moreover, it is possible to cope with a plurality of types of products having different positions of the projections. Therefore, it is possible to provide a shock absorbing material which can reduce molding cost and can easily manage parts.

FIG. 1 is a perspective view of an image forming apparatus main body. FIG. 2 is a perspective view of the paper feeder. FIG. 3 is a perspective view showing a state in which a pair of left and right cushioning materials hold the left and right end portions of the paper feeder separately. FIG. 4 is a perspective view showing a state in which the reinforcing portion is fitted in the recess of the upper buffer portion of the shock absorbing material and located in the vicinity of the positioning pin of the paper feeder. FIG. 5 is a perspective view of a shock absorbing material. FIG. 6 is a front view of a shock absorbing material. FIG. 7 is an enlarged front view around a reinforcing portion showing a first cutting line portion. FIG. 8 is an enlarged front view around a reinforcing portion showing a second cutting line portion. FIG. 9 is a perspective view of the shock absorbing material in which the reinforcing portion is cut and raised on the upper shock absorbing portion side. FIG. 10 is a perspective view of the shock absorbing material in a state where the reinforcing portion is cut and raised on the lower shock absorbing portion side. FIG. 11 is a view showing the front end of the shock absorbing material according to another embodiment, wherein (a) is a front view of the front end of the shock absorbing material, and (b) is a front end of the shock absorbing material showing a third cutting line portion. (C) is a front view of the front end portion of the shock absorbing material showing a fourth cutting line portion, (d) is a front view of the front end portion of the shock absorbing material showing a fifth cutting line portion. FIG. 12 is a cross-sectional view showing a state of using a conventional cushioning material. FIG. 13 is a cross-sectional view showing a state of using a conventional shock absorbing material (a shock absorbing material larger than the shock absorbing material of FIG. 12).

  Hereinafter, embodiments of the present invention will be described based on the drawings. FIG. 1 shows an image forming apparatus main body 100 such as a copying machine, and FIG. 2 shows a paper feeder 50 (corresponding to a product). During transportation or storage of the paper feeder 50, the cushioning material 1 (see FIG. 3) made of the pulp mold of the present invention is used.

  The paper feeder 50 is an optional device added to the image forming apparatus main body 100, and the image forming apparatus main body 100 is mounted on the paper feeder 50. Although one paper feeder 50 is shown in FIG. 2, a plurality of paper feeders 50 are stacked below the image forming apparatus main body 100 according to the application.

[Structure of Paper Feeder 50]
As shown in FIG. 2, the paper feeder 50 includes a rectangular box-shaped casing 55 whose height dimension is shorter than the length in the left-right direction and the front-rear direction, and a plurality of sheets are stacked and accommodated in the casing 55. A first positioning pin 51 (corresponding to a protrusion) is vertically protruded from the right end of the top surface of the housing 55, and a second positioning pin 52 vertically protrudes from the left end. The first positioning pin 51 and the second positioning pin 52 are positioned at the middle of the paper feeder 50 in the front-rear direction. Thus, the first positioning pin 51 and the second positioning pin 52 project from the outer surface of the paper feeder 50.

  On the other hand, a first engagement hole and a second engagement hole (both not shown) are formed on the bottom surface of the image forming apparatus main body 100, and a first positioning pin is formed in the first engagement hole and the second engagement hole. 51 and the second positioning pin 52 are separately inserted and fitted. Thus, the paper feeder 50 and the image forming apparatus main body 100 are accurately positioned, and the transport position of the sheet supplied from the paper feeder 50 to the image forming apparatus main body 100 is determined.

  The cushioning material 1 is integrally molded by molding. The cushioning material 1 is used as a pair for one paper feeder 50. As shown in FIG. 3, the pair of cushioning members 1 hold the left and right end portions of the paper feeder 50 separately. The basic configuration of the pair of left and right cushioning materials 1 is the same. Hereinafter, only the shock absorbing material 1 on the right side will be described.

[Structure of shock absorbing material 1]
In the following description, the "outside" of the shock absorbing material 1 on the right side is opposite to the paper feeder 50 in the state of Fig. 3 in which the left and right shock absorbing materials 1 hold the both ends of the paper feeder 50 separately. The side (right side) means "inward" the paper feeder 50 side (left side).

  As shown in FIG. 3, FIG. 5, and FIG. 6, the shock absorbing material 1 is formed in a rectangular box shape opened on the inner side, and includes a shock absorbing material main body 2 overlapping the right end face of the paper feeder 50. The upper buffer 3, the lower buffer 4, the front buffer 5, and the rear buffer 6 are integrally formed around the buffer body 2.

  Each of the buffer portions 3 to 6 is formed in a horizontal trapezoidal shape that opens while being tapered outward. In each of the buffer portions 3 to 6, a plurality of concave portions 3A, 4A, 5A, 6A spreading inward in a tapered trapezoidal shape are formed (see FIG. 6).

  As shown in FIG. 3, when transporting or storing the paper feeder 50, a pair of left and right shock absorbing materials 1 are separately fitted to the left and right end portions of the paper feeder 50, and as described above The 50 left and right ends are held separately. Then, the paper feeder 50 is housed and packaged in a cardboard packaging case (not shown) together with both buffer materials 1 and transported or stored.

  In the present embodiment, in order to miniaturize the shock absorbing material 1 and the packaging case and to reduce the cost, the first positioning pins 51 protruding from the top surface of the paper feeder 50 and the upper shock absorbing portion 3 of the shock absorbing material 1 are vertically moved. It has been overlapped. In this case, the buffer distance is reduced, the buffer performance of the buffer material 1 is reduced, and the first positioning pins 51 can not be sufficiently protected. Therefore, as shown in FIG. 4 to FIG. 8, the reinforcing portion 7 which is cut and raised from the cushioning material main body 2 and arranged in the vicinity of the first positioning pin 51 and reinforces the upper buffer portion 3 around the first positioning pin 51 is The reinforcement of the shock-absorbing material body 2 is not required.

[Structure of Reinforcement 7]
As shown in FIG. 5 and FIG. 6, the reinforcing portion 7 is provided on the cushioning material main body 2 so as to protrude inward of the cushioning material 1, and is formed in a tapered block shape which becomes thinner toward the tip. The reinforcing portion 7 is formed in a trapezoidal shape that narrows to the upper side when viewed from the thickness direction of the shock absorbing material main body 2, and one corner portion of the pair of corner portions on the bottom side of the trapezoid is notched and cut out The recess 17 is formed. Thereby, the lower end portion 18 of the reinforcing portion 7 protrudes downward.

  As shown in FIGS. 6 to 8, a planned cutting line 10 for cutting and raising the reinforcing portion 7 from the buffer material body 2 is set around the reinforcing portion 7. The planned cutting lines 10 have a plurality of patterns set around the reinforcing portion 7 so that the reinforcing portion 7 can be cut and raised in a plurality of directions from the cushioning material main body 2.

  More specifically, the planned cutting line 10 is a first planned cutting line portion 21 (see FIG. 7) capable of cutting and raising the reinforcing portion 7 from the cushioning material main body 2 to the upper buffer portion 3 side, and the lower cutting portion 4 side. And a second predeterminable cutting line portion 22 (see FIG. 8) which can be cut and raised. The first planned cutting line portion 21 and the second planned cutting line portion 22 partially overlap.

  As shown in FIG. 6, a pair of slits 31 positioned on both sides of the reinforcing portion 7 in the front-rear direction (longitudinal direction) of the cushioning material 1 is formed in the cushioning body 2 along the vertical direction. Further, as shown in FIG. 7, a plurality of small lower side rectangular holes 30A positioned side by side in the front-rear direction are formed near the lower side of the lower peripheral edge of the reinforcing portion 7. In the vicinity of the upper side, a plurality of small upper side angular holes 30B positioned in line in the front-rear direction are formed. The first planned cutting line portion 21 is formed by the upper portions of the pair of slits 31 and the plurality of small lower rectangular holes 30A. Thereby, the worker can easily cut and raise the reinforcing portion 7 to the upper buffer portion 3 side by hand. The code | symbol 15 is a bending line (center of bending) when the reinforcement part 7 is cut and raised to the upper side buffer part 3 side.

  Further, as shown in FIG. 8, the second scheduled cutting line portion 22 is formed by the plurality of small upper rectangular holes 30B and the pair of slits 31 below the upper rectangular holes 30B. . Thereby, the worker can easily cut and raise the reinforcing portion 7 to the lower buffer portion 4 side by hand. The code | symbol 16 is a bending line when the reinforcement part 7 is cut and raised to the lower side buffer part 4 side.

  When the upper buffer portion 3 around the first positioning pin 51 is reinforced by the reinforcing portion 7, the buffer body 2 is cut at the first planned cutting line portion 21. That is, in the state before use, the shock absorber main body 2 is cut at the first planned cutting line portion 21 leaving a part of the periphery, and the reinforcing portion 7 centers the bending line 15 along the longitudinal direction of the shock absorber main body 2 It is bent upward as it is and cut up from the shock absorbing material body 2.

  Then, as shown in FIGS. 4 and 9, the top portion of the reinforcing portion 7 is fitted in the concave portion 3A located in the vicinity of the first positioning pin 51 among the plurality of concave portions 3A of the upper buffer portion 3. It is held. As shown in FIGS. 5 and 7, the concave surface 3A1 of the concave portion 3A of the upper buffer portion 3 is formed on an inclined surface (an inclined surface which spreads in a tapered trapezoidal shape inward) corresponding to the reinforcing portion 7.

  As shown in FIG. 4, in the state where the top side portion of the reinforcing portion 7 is fitted and held in the concave portion 3A positioned in the vicinity of the first positioning pin 51, the notch concave portion 17 is closer to the upper buffer portion 3. Also located inward. The concave surface 17A of the cutout recess 17 is close to a part of the peripheral part of the first positioning pin 51 to surround the part from the upper side and the front side (the front side of the paper feeder 50).

  As a result, the portion in the vicinity of the first positioning pin 51 of the upper buffer portion 3 of the shock absorbing material 1 can be reinforced by the reinforcing portion 7, and in particular, the reinforcing portion 7 can resist the shock absorbing force against compression from above. Further, since the reinforcing portion 7 is fitted and held in one of the concave portions 3A of the upper upper buffer portion 3, the reinforcing portion 7 needs to be reinforced (near the first positioning pin 51 of the paper feeder 50) ) Can be fixed securely to be able to exhibit a reinforcing function.

  Furthermore, when the reinforcing portion 7 and the concave portion 3A of the upper buffer portion 3 are in a fitting state, the shape of the reinforcing portion 7 is a tapered block shape which becomes thinner toward the tip, so the upper buffer portion 3 is compressed from above When a force is received, the reinforcing portion 7 can be supported to prevent the upper buffer portion 3 from being deformed downward. Therefore, the first positioning pin 51 can be protected from impact without causing the cost increase and the size increase of the shock absorbing material 1, and the breakage, the deformation, and the like of the first positioning pin 51 can be reliably prevented.

  For example, when the lower surface of the paper feeder 50 is provided with a protrusion (not shown) that protrudes downward, and the lower buffer portion 4 around the protrusion is reinforced by the reinforcing portion 7, the buffer material 2 is used. It cuts in the 2nd cutting planned line part 22 (refer FIG. 8).

  That is, in the state before use, the shock absorber main body 2 is cut at the second planned cutting line portion 22 leaving a part of the periphery, and as shown in FIG. 8 and FIG. It is bent downward about a folding line 16 along the line 2 and cut up from the shock absorber main body 2.

  Then, as shown in FIGS. 5 and 10, the lower end portion 18 of the reinforcing portion 7 is engaged with and held by the concave portion 4A positioned in the vicinity of the protrusion of the plurality of concave portions 4A of the lower buffer portion 4. .

  As described above, the reinforcing portion 7 is cut and raised in any one of a plurality of directions, and is disposed in the vicinity of the protrusion (first positioning pin 51) positioned in any one direction.

  According to the configuration of the present invention, it is possible to increase the number of locations of the buffer portion that can be reinforced by the reinforcing portion 7 to a plurality, and with one buffer material 1 to a plurality of types of products (e.g. It is possible to correspond and reduce the number of molds for forming the cushioning material 1.

  Therefore, the protuberance of the product can be sufficiently protected without causing cost increase or enlargement, and the breakage etc. can be surely prevented, and moreover, the molding cost can be reduced, and the cushioning material 1 made of pulp mold can be easily managed Can be provided.

[Another embodiment]
[1] As shown in FIG. 11A, the reinforcing portion 7 may be provided on the front end portion (one end portion in the longitudinal direction) side of the shock absorbing material main body 2. A planned cutting line 10 capable of cutting and raising the reinforcing portion 7 in a plurality of directions from the cushioning material body 2 is set around the reinforcing portion 7. The planned cutting line 10 is a third planned cutting line portion 27 capable of cutting and raising the reinforcing portion 7 in three directions, the front buffer portion 5 side, the lower buffer portion 4 side, and the upper buffer portion 3 side (FIG. 11 (b)) , And a fourth planned cutting line portion 28 (FIG. 11 (c)), and a fifth planned cutting line portion 29 (FIG. 11 (d)). 11A to 11D, reference numeral 41 denotes a slit forming third to fifth scheduled cutting line portions 27 to 29, and reference numeral 40 denotes third to fifth scheduled cutting line portions 27 to 29. Are square holes that form

  As shown in FIGS. 11 (a) and 11 (b), the reinforcing portion 7 cut at the third scheduled cutting line portion 27 has a bending line 47 along the vertical direction orthogonal to the longitudinal direction of the cushioning material body 2. It is bent toward the front cushioning portion 5 as a center and cut and raised from the cushioning body 2. And the reinforcement part 7 is fitted by the recessed part 5A of the front side buffer part 5 located in the vicinity of the protrusion of protection object, and is hold | maintained.

  As shown in FIGS. 11 (a) and 11 (c), the reinforcing portion 7 cut at the fourth planned cutting line portion 28 is located on the lower side centering on the bending line 48 along the longitudinal direction of the shock absorber main body 2. It is bent to the buffer 4 side and cut up from the buffer main body 2. And the reinforcement part 7 is fitted by the recessed part 4A of the lower side buffer part 4 located in the vicinity of the protrusion of protection object, and is hold | maintained.

  As shown in FIGS. 11 (a) and 11 (d), the reinforcing portion 7 cut at the fifth scheduled cutting line portion 29 has an upper buffer centering on a bending line 49 along the longitudinal direction of the shock absorber main body 2. It is bent to the part 3 side and cut up from the shock absorber main body 2. And the reinforcement part 7 is fitted and hold | maintained at the recessed part 3A of the upper side buffer part 3 located in the vicinity of the protrusion of protection object.

  Planned cutting lines 10 of four or more patterns may be set around the reinforcing portion 7 so that the reinforcing portion 7 can be cut and raised in four or more directions from the cushioning material main body 2.

[2] The reinforcing portion 7 is cut out from the buffer material body 2 and disposed in the vicinity of a protrusion (for example, the positioning pin 51) of a product such as a paper feeder 50, and the buffer portion (upper buffer portion 3) around the protrusion And any one of the lower cushioning portion 4, the front cushioning portion 5, and the rear cushioning portion 6) may be reinforced.

  In this case, a concave fixing portion (for example, the concave portions 3A, 4A, 5A) for fixing the reinforcing portion to any one of the upper cushioning portion 3, the lower cushioning portion 4, the front cushioning portion 5 and the rear cushioning portion 6 , 6A) are provided. And the reinforcement part 7 is fitted-fixed by one arbitrary fixing part located in the vicinity of the said protrusion among several fixing parts.

  The fixing portion may have a shape other than a concave shape, and the reinforcing portion may be fixed to the fixing portion other than the concave shape by fixing means other than fitting.

[3] The cushioning material 1 can be used for any other product (product other than the paper feeder 50) having a protrusion protruding from the outer surface.

[4] The protrusion may be a protrusion other than the positioning pin 51, and may be, for example, a switch. Moreover, the protrusion which protrudes from the lower surface and side surface of an apparatus may be sufficient.

  As described above, the present invention is useful for buffer materials used during transportation or storage of devices provided in an image forming apparatus, and in particular, provided in copying machines, facsimiles, printers, multifunction machines (MFPs), etc. Useful as a cushioning material used during transportation or storage of equipment.

2 Shock absorber main body 3A Recess (recess of upper shock absorber)
4A Recess (recess of lower buffer)
5A recessed part (concave part of front cushioning part)
6A Recess (recess of back buffer)
3A1 Concave 3 buffer (upper buffer)
4 Buffer section (lower buffer section)
5 Buffer section (front buffer section)
6 Buffer (back side buffer)
7 reinforcement 10 cut line 50 product (paper feeder)
51 projection (first positioning pin)

Claims (5)

A pulp mold cushioning material for holding a product in which projections protrude from the outer surface,
A buffer section is integrally formed around the buffer material body,
And a reinforcing portion which is cut and raised from the shock absorbing material main body and disposed in the vicinity of the protrusion to reinforce the shock absorbing portion around the protrusion.
Planned cutting lines of a plurality of patterns are set around the reinforcing portion such that the reinforcing portion can be cut and raised in a plurality of directions from the shock absorbing material main body,
The cushioning material disposed in the vicinity of the protrusion located in any one of the plurality of directions, wherein the reinforcing portion is cut and raised in any one of the plurality of directions.   The shock absorbing material according to claim 1, wherein the cut and raised reinforcing portion is fitted and held in a recess formed in the buffer portion. The reinforcing portion is formed in a tapered block shape which becomes thinner toward the tip,
The cushioning material according to claim 2, wherein the concave surface of the recess is formed in an inclined surface corresponding to the reinforcing portion. A pulp mold cushioning material for holding a product in which projections protrude from the outer surface,
A buffer section is integrally formed around the buffer material body,
It has a reinforcing portion which is cut out from the shock absorbing material main body and disposed in the vicinity of the protrusion to reinforce the shock absorbing portion around the protrusion.
The buffer portion is provided with a plurality of fixing portions for fixing the reinforcing portion,
The said reinforcement part is a shock absorbing material fixed to one arbitrary fixing part located in the vicinity of the said protrusion among these fixing parts. The fixing portion is formed in a concave shape,
The shock absorbing material according to claim 4, wherein the reinforcing portion is fitted to the fixing portion.

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