DE19638096A1 - Pulp mould used to position and cushion irregular shaped objects and device for making mould - Google Patents

Abstract

A pulp mould packaging element 30 for supporting an article 34 comprises a cushioning section 31 with a plurality of units with ridged surfaces 36 for engaging an external packaging material such as a carton, each pair of successive units being connected by an inner surface for engagement with the article, which may have irregular contours. The packaging element may receive the corner of a cuboid or the end of a cylindrical article and the cushioning section may comprise orthogonally disposed units 31,32,33. The ridged surfaces may be rectangular, triangular or semi-circular, and may taper towards a smaller outer end. A method of moulding such a packaging element comprises using a two part mould (see fig 8B), the lower mould members 87 being used to form the inner surface of the packaging element to match the irregular contours of the article, the upper mould members 86 being used to form the ridged surfaces. If the required contours are changed, then only the lower mould members need to be replaced. A further packaging element is shown in fig 2 which comprises a recess 20 with a cushioning section having spaced strips 22 for engaging an article 23 with a substantially circular cross-section.

Description

Background of the Invention (I) Field of the Invention

The present invention relates generally to a pulp form. Technology for packaging objects and especially on a pulp mold for positioning and cushioning an object and on a shaping device for making the pulp mold.

(II) Description of the Prior Art

Conventional packaging materials, such as those used for this be used to produce agricultural products or food, e.g. B. fruits, eggs, cans or fresh meat, or industrial products, e.g. B. computer parts, electronic comm Components, electrical parts and porcelain products are usually kept out Polylones or EPE foam materials made. As is well known, are these materials are massive and extremely flammable and spontaneously flammable, non-degradable, toxic and non-recyclable, and consequently they cause significant problems in environmental protection. EPE foam materials contain CFC that would go away is known to be harmful to the ozone in the atmosphere and so is it is bad for soil pollution.

In order to overcome the disadvantages of conventional packaging materials, the most of the countries that have been concerned with environmental protection for a long time do not make any effort reluctant to find substitutes and they use more and more pulp or cell fabric molded packaging materials. Because the raw material of the pulp molded body is made from recycled paper and does not require tree felling fully suited to the increasingly necessary environmental needs. Compared to the traditional polylones and EPE foam materials require  the pulp molded body materials take up less space and become no toxic substances generate zen when burning. The fibrous components of the pulp molded body mate materials are suitable for absorbing moisture. Furthermore, the pulp shape body materials not spontaneously combustible.

However, existing pulp molding materials are only intended to counter to hold or support stands. More specifically, they only work in order to counter positions and no damping or spring effect in relation to the to deliver packaged items. That means the traditional pulp shape body materials do not damage the packaged items due to egg collision or impact during shipping. Dane The conventional shaping devices for producing pulp Shaped bodies can only be used for a specific design. More specifically is there where there is a change in the contour or shape of an object ne new forming device may be required for such a change. As a result far from the conventional shaping devices no flexibility in use.

Summary of the invention

It is an object of the present invention to provide a pulp molded body for packaging of objects and to achieve functions of positioning and one To achieve suspension or damping for the packaged items. The pulp shape Body according to the invention has at least one damping or resilient cut, which is formed by a plurality of pulp molded body units, each de unit is a ribbed surface on the pulp molding.

It is another object of the present invention to provide a molding device create the upper moldings and lower moldings for producing the pulp moldings per units and in turn includes the pulp molded body. The upper molding Perteile together with the lower molded parts are intended to the rib to form th surfaces of the pulp molded article units, and the lower molded articles Parts are suitable for the contour of an object that is to be packed fit.

Brief description of the drawings

Fig. 1 is a schematic view illustrating the pulp molded article according to an embodiment of the present invention for packaging an article having a substantially circular cross section;

Figs. 2A and 2B are schematic views for packaging a Ge genstands having a substantially rectangular cross-section, represent the pulp molded article according to another embodiment of the present invention;

Figure 3 illustrates an alternative to the present invention shown in Figure 2;

Fig. 4 illustrates another alternative of the present invention, which is shown in Fig. 2;

Fig. 5A illustrates a fastened or reinforced pulp molded body according to the vorlie invention;

Fig. 5B shows a side view of Fig. 5A;

Fig. 6A illustrates a yet another fixed or reinforced pulp-molded body constitutes the present invention;

Fig. 6B shows a side view of Fig. 6A;

Fig. 7 illustrates the molding equipment for manufacturing the pulp molding units of the present invention;

Fig. 8A shows a pulp molded article according to the prior art for supporting fruit or eggs; and

Fig. 8B shows a pulp molded article according to the prior art for packaging articles with jagged contours.

The foregoing and other tasks, aspects, and advantages of the present invention can be better understood from the detailed description below will.  

Detailed description

FIGS. 8A and 8B respectively represent the schematic views of conventional Pul pe-shaped body for supporting or holding of fruit or eggs and for supporting indu strieller parts which have jagged contours. As shown in Fig. Shown 8A, the pulp Shaped body according to the prior art with recessed areas for taking on objects 10 , such as apple; which have a substantially circular cross section. The pulp molded body according to the prior art, as shown in Fig. 8B, serves to hold an object 12 , such as an electronic product or a mechanical device, for example, which has a fissured contour. The pulp molded body according to the prior art has recessed sections 13 , 14 corresponding to the contour of the object 12 so as to hold the object 12 therein. The known pulp moldings are easily seen to hold or support the packaged items alone and do not provide a damping or resilient effect to protect the packaged items from an impact or a collision during shipping. In other words, the packaging materials of the prior art cannot minimize the damage to which the objects can be subjected.

Fig. 1 shows an embodiment according to the present invention. The pulp molded body, which is shown in Fig. 1, serves to position and resiliently store objects which have a substantially circular cross-section. These items can include, for example, fruits, eggs and cans. In this embodiment, a substantially cylindrical recess 20 is formed in the pulp molded body. The opening of the recess 20 has an inner diameter significantly larger than that of the bottom 21 of the recess 20th The bottom 21 is vorzugwei se provided with an opening for ventilation. A resilient or damping section 22 , which is formed by a plurality of spaced pulp-shaped strips, defines the inner wall of the recess 20 . Each strip extends from the periphery of the opening to the bottom 21 . The feather or pillow section 22 creates "surface to surface" contact with an article 23 to be packaged. The surface-surface contact is achieved when the ring zones 24 and 24 'engage with each other. The prior art, which is shown in Fig. 8A, typically provides "point to point" contact alone because the prior art pulp molded body is formed with depressions of a uniform dimension and often there is a gap 11 , when an object is placed in one of the recesses. As a result, the prior art packaging material cannot securely hold the packaged item and typically uses sponge-like pads to compensate for the gap 11 . This solution requires undesirable materials that continue to cause additional environmental problems and increase costs. In contrast to this, according to the present invention, due to the cushion section 22, the packaged article 23 can not only be held more securely, but also a cushion or damping effect is created due to the elasticity of the pulp molding fibers.

Figs. 2A and 2B illustrate another embodiment of the present invention. As in Fig. 2a, the pulp-shaped body constructed in this embodiment 30 with resilient or pad portions 31, 32 and 33, each in the X-, Y- and -Z- (negative Z) direction (Cartesian coordinate system) are constructed to encase an object 34 which has a substantially rectangular cross-section. Item 34 may be the actual item to be packaged or an outer wrapper containing an item. The cushion section 33 in the negative Z direction is constructed with a plurality of successive units 35 which extend lengthwise. The units 35 have ribbed surfaces projecting from the surface of the pulp molded body 30 and have, for example, semicircular, rectangular or triangular shapes. The cushion sections 31 and 32 are formed with a number of laterally extending units 36 in the X and Y directions, respectively.

FIG. 2B shows an alternative use of the pulp molded body 30. In this embodiment, an article 37 is packaged at four or eight corners thereof by the pulp molded body 30 .

Although not shown, it can be easily understood that the cushion section ( 31 , 32 ) is arranged at an angle greater than orthogonal to one another, as shown in FIG. 2A, to encase a substantially cylindrical object.

FIG. 3 shows an alternative embodiment of the present invention shown in FIG. 2, wherein a pulp shaped body 40 , similar to the pulp shaped body 30 shown in FIGS. 2A and 2B, on two, four or eight Corners of an object with a substantially rectangular cross section are attached. However, when the receiving portion 42 of the pulp molded body 40 is fitted in the corner, the pulp molded body 40 creates a cushion function along each of the three orthogonal axes, namely the X, Y and Z directions , or alternatively in the (1, 0, 0), (0, 1, 0) and (0, 0, 1) orientation, by means of the pillow sections formed by units 41 arranged in succession along the axes are.

FIG. 4 shows yet another alternative embodiment of the present invention, which is shown in FIG. 2, in which the pulp shaped body 50 can also be used at two, four or eight corners of a substantially rectangular cross section. However, when the receiving portion 52 of the pulping pad 50 is fitted into a corner of the article, the units 51 forming a pillow portion are sequentially in each of the (1, 1, 0) , (0, 1, 1) and (1, 0, 1) orientation as opposed to the (1, 0, 0), (0, 1, 0) and (0, 0.1) orientation that are in Fig. 3 is provided.

Fig. 5A illustrates a pulp-molded body 60 according to another embodiment of the present invention, having the pad portions which are formed by a plurality of pulp-shaped body units 61. As shown, four units form a resilient or pillow section. Each unit 61 has a rib-like surface which is not simply formed by elementary, geometric shapes such as semicircular, triangular or rectangular, but is formed with a terrace-like portion 62 on both sides of the rib-like surface to define a configuration , which has a narrow, upper surface and a wide, lower area. The pulp molded body 60 is also provided with a base 63 to which the bottom surfaces 64 connecting the units 61 are connected. In addition, to provide shock absorption and cushioning effect on the packaged item, the units formed with the terrace-like portion 62 also provide additional resistance to the pressure from above. The base 63 is intended to continue to support the units 61 to protect them from collapsing to thereby form a reinforced pulp molded structure.

FIG. 6A illustrates a pulp molded body 70 that also has a reinforced structure that has a pillow portion constructed with a plurality of units 71 . As shown, four units form a pillow section. Compared to the embodiment shown in FIG. 5A, the units 71 have a terrace-like portion 72 on one side of the ribbed surface alone and a base 73 .

The present invention also provides a molding device for manufacturing the units. FIG. 7A illustrates a finished pulp molded article 81. The pulp molded article 81 has a cushion portion, the body units with a plurality of pulp mold is constructed 82, which, as shown, as a unit matrix arranged are so that it is in contact with an outer packaging material such as a carton or a cardboard box (not shown). The bottom surfaces 83 , each connecting successive units, can be shaped according to the contour of the object 84 to be packaged. In the embodiment, the object 84 has a contour which is defined by curved lines f and g in the horizontal plane. The bottom surfaces 83 are designed to form a wrapping plane by curved lines f 'and g' corresponding to the curved lines f and g so as to closely match the object 84 .

FIG. 7B shows a shaping device 85 for producing the pulp shaped body 81 , which is shown in FIG. 7A. The shaping device 85 has an upper shaped body part 86 (hatched areas) and a lower shaped body part 87 (non-hatched areas), wherein each lower molded part connects two successive upper molded parts together. The upper and lower molded parts 86 and 87 together define the configuration of the units 82 , such as a semicircular, a triangular, a square or a terrace-like configuration. The lower molded parts 87 are also used to form the bottom surface 83 so that an envelope plane can be defined to correspond to the contour of the object. In Fig. 7B, broken line 88 represents the pulp molded units attached to the upper and lower molded parts, which are then dehydrated, dried, or baked and possibly further processed to form the pulp molded article 81 .

In the former 85 of the present invention, the upper molded body parts 86 can be used repeatedly even when the contour of the article to be packaged changes, such as when it has a contour that is indicated by another curved contour line h (not shown) is defined. In such a case, only the lower molded parts 87 are redesigned to fit the new contour, and the upper molded parts 86 can be retained. In contrast, the prior art molding device for making pulp molded articles as shown in FIGS . 8A and 8B take the form of integral molded article parts so that the entire molding device is no longer subject to design changes are usable. Obviously, the molding device according to the present invention is flexible and economical to use.

As discussed above, the present invention provides a pulp molding per who has cushion-like or resilient and shock-absorbing features, and a Molding device for producing the pulp molded body units of the pulp mold body that are sometimes used repeatedly with a different design can. Although the present invention with reference to the specific before Preferred embodiments have been described, those skilled in the art subject make a variety of modifications and changes without the scope of the present invention as defined by the appended claims is defined to leave.

Claims (23)

1. Pulp molded article for positioning and cushioning an object which has an irregular contour, the pulp molded article having:
resilient portions, each having a plurality of consecutive pulp molded body units, each pulp molded body unit defining a corrugated surface on the pulp molded body for contact with an outer packaging material, and each two successive units being connected to a bottom surface, wherein the floor surfaces define a wrapping plane corresponding to the irregular contour of the object. 2. Pulp molded article according to claim 1, wherein the corrugated surface of each unit takes the form of a rectangular shape. 3. Pulp molded article according to claim 1, wherein the corrugated surface of each unit takes the form of a triangular shape. 4. Pulp molded article according to claim 1, wherein the corrugated surface of each unit takes the form of a semicircular shape. 5. Pulp molded article according to claim 1, wherein the ribbed surface is at least egg NEN terrace-like section such that the ribbed surface one Has top area smaller than a bottom area thereof. 6. Molding device for producing a pulp molding, the pulp molding being provided for positioning and cushioning an article which has an irregular contour and has resilient sections, each of which has a plurality of consecutive pulp molding units, each pulp Molded body unit defines a corrugated surface on the pulp molded body for contact with an outer packaging material, and wherein every two successive units are connected to a bottom surface, the bottom surfaces defining a wrapping plane corresponding to the irregular contour of the article, the shaping device comprising:
upper mold parts and lower mold parts to together define the ribbed surfaces of the units, and wherein the lower mold parts further serve to define the bottom surfaces. 7. The molding apparatus of claim 6, wherein the corrugated surface of each unit takes the form of a rectangular shape. 8. The molding apparatus of claim 6, wherein the corrugated surface of each unit takes the form of a triangular shape. 9. The molding apparatus of claim 6, wherein the corrugated surface of each unit takes the form of a semicircular shape. 10. Molding device according to claim 6, wherein the ribbed surface at least has a terrace-like section, so that the ribbed surface has a Has top area smaller than a bottom area thereof. 11. Pulp shaped body for positioning and cushioning an object which has a substantially rectangular cross section, the pulp shaped body having:
a receiving portion for receiving a corner of the object;
Planes extending from the receiving portion, the planes being substantially orthogonal to each other, and each of the planes having an inner and an outer surface, each inner surface covering the surface of the object associated with the corner when the Corner is received by the receiving portion; and
resilient portions provided on the outer surfaces of the planes for contact with an outer packaging material, each resilient portion having a plurality of consecutive pulp molded article units, each unit being a corrugated surface provided on the plane . 12. The pulp molded article according to claim 11, wherein the corrugated surface of each unit takes the form of a rectangular or quadrangular shape. 13. The pulp molded article according to claim 11, wherein the corrugated surface of each unit takes the form of a triangular shape. 14. The pulp molded article according to claim 11, wherein the corrugated surface of each unit takes the form of a semicircular shape. 15. Pulp molded article according to claim 11, wherein the ribbed surface at least has a terrace-like section such that the ribbed surface has a Upper side area smaller than a bottom area thereof. 16. A pulp molded article according to claim 15, further comprising a raised base points, which is connected to the floor surfaces. 17. Pulp molded article for positioning and cushioning an object which has a cylindrical shape, the pulp molded article having:
a receiving area for receiving a segment in one end of the article;
Layers extending from the receiving portion, with the inner surface of one of the layers touching the end of the article and the inner surfaces of the remaining layers covering the surface associated with the segment when the segment is received by the receiving portion becomes; and
resilient portions provided on the outer surfaces of the planes for contact with an outer packaging material, each resilient portion having a plurality of consecutive pulp molded article units, each unit being a corrugated surface provided on the plane . 18. Pulp molded article according to claim 17, wherein the corrugated surface of each unit takes the form of a rectangular or quadrangular shape.   19. A pulp molded article according to claim 17, wherein the corrugated surface of each unit takes the form of a triangular shape. 20. Pulp molded article according to claim 17, wherein the corrugated surface of each unit takes the form of a semicircular shape. 21. Pulp molded article according to claim 17, wherein the ribbed surface at least has a terrace-like section such that the ribbed surface has a Upper side area smaller than a bottom area thereof. 22. Pulp molded article according to claim 21, further comprising a raised base points, which is connected to the floor surfaces. 23. Pulp molded body for positioning and cushioning an object which has a substantially circular cross section, the pulp molded body having:
a recessed portion for receiving the article, the recessed portion defining an upper opening, a bottom and an inner wall, the diameter of the opening being larger than that of the bottom; and
a resilient portion having a plurality of pulp molded strips which are spaced apart and form the inner wall of the recessed portion, each strip extending from the periphery of the opening to the bottom.