Holder member and holder blank sheet member

Abstract

The present invention provides a holder member and a holder blank sheet member capable of holding an object to be held with high stability while reducing material costs. A holder member (1) comprises: an upper holder part (11) having a cross-sectional shape corresponding to a trapezoid excluding a lower base; and a lower holder part (12) having a cross-sectional shape partially extending along the lower base. The upper holder part (11) includes: a top wall (111) corresponding to an upper base; a pair of inclined walls (112) corresponding to a pair of legs; and a pair of holding flaps (113) cut and raised from the respective inclined walls (112) so as to be continuous therewith and extend inward in an inclined state, the pair of holding flaps (113) holding the object to be held (A1) by sandwiching the object to be held at respective distal edges (113a). The lower holder part (12) includes: a bottom wall (121) corresponding to a part of the lower base; and a pair of connecting walls (122) extending from a pair of side edges (121a) of the bottom wall (121) and connected to the pair of inclined walls (112) on a lower base side.

Description

Holder member and holder deployment sheet member

[0001] The present invention relates to a holder member for holding an object to be held, and a holder deployment sheet member for constituting the holder member.

[0002] Holder members for holding objects such as drink cups have been widely used in the past (see, for example, Patent Document 1). The holder member described in Patent Document 1 is made of paper and formed into a rectangular tube with a target through hole formed in the top wall, and the object to be held is inserted into the target through hole.

[0003] Japanese Patent Application Laid-Open No. 2000-109060

[0004] Here, the above-described type of holder member tends to have a flat shape with a reduced height to reduce the amount of raw material used. In such a flat holder member, the lower side of the object to be held, such as a cup, is held, resulting in a less stable hold. On the other hand, increasing the height of the holder member to hold the object closer to the upper side in order to improve stability, increases the amount of raw material used and tends to increase material costs. Furthermore, when a cup or the like is used as the object to be held, the cup diameter increases toward the top, resulting in a larger through-hole. Because the object to be held is inserted and held, the top wall needs a wide edge that is wide enough to support the size of the through-hole. This naturally results in a larger top wall area, which also tends to increase material costs.

[0005] The present invention aims to solve such problems by providing a holder member and a holder deployment sheet member that can hold an object with high stability and reduce material costs.

[0006] In order to achieve the above object, the holder member comprises an upper holder portion in which a sheet-like material is folded so as to have a cross-sectional shape that is a trapezoid with a pair of legs inclined inward toward the upper base, excluding the lower base, and which holds a held object on the upper base side; and a lower holder portion in which a continuous sheet-like material that is continuous with the sheet-like material or a separate sheet-like material that is separate from the sheet-like material is folded so that a part of the cross-sectional shape conforms to the lower base, and the upper holder portion has a top wall that is a band-shaped wall portion corresponding to the upper base and has a target through-hole formed therein through which the held object passes, and a pair of top wall side edges of the top wall that are connected to the pair of legs. and a pair of holding flaps cut out from the sheet-like material so as to be continuous with the top wall side of each of the pair of sloping walls and extend in an inwardly sloping manner toward the target through hole, the flaps abutting the object to be held that has passed through the target through hole at each extending end edge, thereby sandwiching and holding the object to be held; the lower holder portion is a strip-shaped wall portion corresponding to a part of the lower bottom, and comprises a bottom wall on which the object to be held that has passed through the target through hole is placed, and a pair of connecting walls extending from a pair of bottom wall side edges of the bottom wall and connected to the pair of sloping walls.

[0007] In addition, in order to achieve the above-mentioned object, the holder expansion sheet member is a sheet member for constituting the above-mentioned holder member, and is characterized by comprising an upper expansion sheet in which the upper holder portion is stretched, and an expansion sheet in which the lower holder portion is stretched, which is superimposed on the upper expansion sheet to form a two-ply flat sheet state, and which is folded into the lower holder portion following the folding of the upper expansion sheet into the upper holder portion.

[0008] According to the holder member and holder deployment sheet member described above, the object to be held can be held with high stability, and material costs can be reduced.

[0009] 1 is a perspective view showing a holder member according to a first embodiment. FIG. 1 is a front view of the holder member shown in FIG. 1, as seen from the direction of arrow V11 in FIG. 1. FIG. 2 is a side view of the holder member shown in FIG. 1, as seen from the direction of arrow V12 in FIG. 1. FIG. 3 is a top view of the holder member shown in FIG. 1, as seen from the direction of arrow V13 in FIG. 1. FIG. 4 is a bottom view of the holder member shown in FIG. 1, as seen from the direction of arrow V14 in FIG. 1. FIG. 5 is a plan view showing one unfolded sheet for obtaining the holder member shown in FIGS. 1 to 5. FIG. 6 is a top view of a holder unfolded sheet member in a flat sheet state formed from the unfolded sheet shown in FIG. 6, as seen from the direction of arrow V13 in FIG. 1. FIG. 7 is a bottom view of a holder unfolded sheet member in a flat sheet state formed from the unfolded sheet shown in FIG. 6, as seen from the direction of arrow V14 in FIG. 1. FIG. 8 is a diagram showing how the holder member shown in FIGS. 1 to 5 is formed from the holder unfolded sheet member shown in FIGS. 7 and 8. FIG. 9 is a perspective view showing a holder member according to a second embodiment. FIG. 10 is a plan view of one unfolded sheet for obtaining the holder member shown in FIG. 10. 13 is a top view of a holder-developing sheet member in a flat sheet state formed from the developed sheet shown in Fig. 11, as viewed from the direction of arrow V53 in Fig. 10. FIG. 14 is a bottom view of a holder-developing sheet member in a flat sheet state formed from the developed sheet shown in Fig. 11, as viewed from the direction of arrow V54 in Fig. 10. FIG. 15 is a diagram showing how the holder member shown in Fig. 10 is formed from the holder-developing sheet member shown in Figs. 12 and 13.

[0010] Hereinafter, an embodiment of the holder member and the holder deployment sheet member will be described. First, a first embodiment will be described.

[0011] Fig. 1 is a perspective view showing a holder member according to a first embodiment. Fig. 2 is a front view of the holder member shown in Fig. 1 as seen from the direction of arrow V11 in Fig. 1, Fig. 3 is a side view of the holder member shown in Fig. 1 as seen from the direction of arrow V12 in Fig. 1, Fig. 4 is a top view of the holder member shown in Fig. 1 as seen from the direction of arrow V13 in Fig. 1, and Fig. 5 is a bottom view of the holder member shown in Fig. 1 as seen from the direction of arrow V14 in Fig. 1.

[0012] The holder member 1 of this embodiment is a paper drink holder that holds two drink cups (A1) side by side, as shown by the dotted line in FIG. 1 . The holder member 1 is set, for example, in a paper bag for carrying purchased products. The holder member 1 includes an upper holder portion 11 and a lower holder portion 12. As shown in the front view of FIG. 2 , the upper holder portion 11 is bent to have a cross-sectional shape that is a trapezoid B1 with a pair of legs B13 inclined inward toward the upper base B11, excluding the lower base B12, and holds the object A1 on the upper base B11 side. The lower holder portion 12 also has a cross-sectional shape that is bent to conform to the lower base B12.

[0013] The upper holder part 11 includes a top wall 111, a pair of inclined walls 112, and a pair of holding flaps 113. In this embodiment, two pairs of holding flaps 113 are provided.

[0014] The top wall 111 is a rectangular strip-shaped wall portion corresponding to the upper base B11 of the trapezoid B1, and is a wall portion formed with circular target through holes 111a through which the holding object A1 passes. Two target through holes 111a are formed side by side in the longitudinal direction D11.

[0015] The pair of sloped walls 112 are a pair of wall portions extending from a pair of top wall side edges 111b along the longitudinal direction D11 of the top wall 111 so as to correspond to a pair of legs B13 of the trapezoid B1. Furthermore, both end edges of each sloped wall 112 in the longitudinal direction D11 are protruding edges 112a consisting of two sides forming an obtuse angle. The width dimension of the sloped wall 112 in the longitudinal direction D11 on the bottom edge 112b side, determined by the side of each of the protruding edges 112a closest to the bottom edge 112b, decreases toward the bottom edge 112b. This shape facilitates placing the holder member 1 in a paper bag. Note that both end edges of each sloped wall 112 in the longitudinal direction D11 may be formed linearly so that the sloped wall 112 has a uniform width up to the bottom edge 112b.

[0016] The two pairs of holding flaps 113 are wall portions cut and raised so as to extend inwardly toward the target through-hole 111a, continuing from the top wall 111 of each of the pair of sloped walls 112. Each pair of holding flaps 113 in each set abuts the holding object A1 passing through the target through-hole 111a with its extending edge 113a, thereby sandwiching and holding the holding object A1 in a clamping direction D13 along a width direction D12 perpendicular to the longitudinal direction D11. Note that the abutment of the holding flaps 113 against the holding object A1 does not mean that the holding flaps 113 are always in contact when the holding object A1 is set. For example, when the holder member 1 is stationary and placed on a mounting surface, the holding flaps 113 may become separated from the holding object A1 if the holding object A1 is too small. However, even in such a case, when the holder member 1 is carried, the holding flap 113 abuts against the holding object A1 due to shaking or the like of the holding object A1, thereby holding the holding object A1. This abutment suppresses shaking of the holding object A1 during carrying. Thus, the abutment of the holding flap 113 against the holding object A1 refers to the abutment associated with holding the holding object A1. Furthermore, when the upper holder portion 11 is in an expanded state in which it is extended in the width direction D12, the pair of holding flaps 113 are formed so that they extend from the pair of top wall side edges 111b to the inside of the target through-holes 111a, with the extending edges 113a facing the width direction D12. Furthermore, the extending edges 113a of each holding flap 113 are formed in an arc-like concave shape corresponding to the tapered cylindrical outer surface shape of the holding object A1, i.e., a drink cup.

[0017] The inner edge of the target through hole 111a provided in the top wall 111 is formed in an arc-shaped concave shape corresponding to the outer surface shape of the object to be held, similar to the extending edge 113a of the holding flap 113. The inner edge of the target through hole 111a holds the object to be held A1 on the lower side, which is on the top wall 111 side as viewed from the extending edge 113a of each of the pair of holding flaps 113, as follows: That is, by cutting and raising the pair of holding flaps 113, only a pair of portions of the inner edge of the target through hole 111a facing the intersecting direction D14 along the longitudinal direction D11 with respect to the clamping direction D13 remain. The remaining pair of portions of the inner edge of the target through hole 111a hold the object to be held A1 so as to sandwich it in the intersecting direction D14.

[0018] Next, the lower holder portion 12 of the holder member 1 will be described. The lower holder portion 12 includes a bottom wall 121 and a pair of connecting walls 122 .

[0019] The bottom wall 121 is a rectangular strip-shaped wall portion corresponding to a part of the lower base B12 of the trapezoid B1. The bottom wall 121 is placed on the placement location of the holder member 1, and the object A1 to be held that passes through the target through-hole 111a of the top wall 111 is placed on the bottom wall 121.

[0020] The pair of connecting walls 122 are a pair of wall portions that extend from a pair of bottom wall side edges 121a along the longitudinal direction D11 of the bottom wall 121 and are connected to the lower base B12 sides of the pair of sloped walls 112. Each connecting wall 122 includes an inner sloped wall 122a and an attached wall 122b, and has a V-shaped cross section that is convex toward the top wall 111 side.

[0021] The inner inclined walls 122a of each connecting wall 122, that is, the pair of inner inclined walls 122a of a pair of connecting walls 122, are wall portions that extend in an outwardly opening inclined state from a pair of bottom wall side edges 121a to reach the inner surfaces of a pair of inclined walls 112.

[0022] Furthermore, the attachment walls 122b of each connecting wall 122, i.e., the pair of attachment walls 122b of the pair of connecting walls 122, are bent at the reaching edge 122a-1 of the pair of inner inclined walls 122a that reaches the inner surface of the inclined wall 112, and extend to overlap the inner surface and are attached to the wall. Furthermore, each attachment wall 122b extends and is attached to the bottom edge 112b of the respective inclined wall 112, so that the area from the reaching edge 122a-1 to the bottom edge 112b forms a double wall. In this embodiment, the first attachment wall 122b-1 of the pair of attachment walls 122b is formed so that it is continuous with the first inclined wall 112-1 to which the first attachment wall 122b-1 is attached at the bottom edge 112b. The first attachment wall 122b-1 is folded back along the bottom edge 112b and attached to the first sloped wall 112-1. On the other hand, the second attachment wall 122b-2 of the pair of attachment walls 122b is a separate body from the second sloped wall 112-2 and is attached to the second sloped wall 112-2 by overlapping it.

[0023] Here, the holder member 1 of this embodiment is formed by a user's operation on a holder development sheet member 2 (FIGS. 7 and 8) in a flat sheet state formed from a single development sheet C1 (FIG. 6) described below.

[0024] Fig. 6 is a plan view showing one spread sheet for obtaining the holder member shown in Fig. 1 to Fig. 5. Fig. 7 is a top view of the holder spread sheet member in a flat sheet state formed from the spread sheet shown in Fig. 6, as seen from the direction of arrow V13 in Fig. 1. Fig. 8 is a bottom view of the holder spread sheet member in a flat sheet state formed from the spread sheet shown in Fig. 6, as seen from the direction of arrow V14 in Fig. 1.

[0025] 7 and 8 is formed by folding the single expanding sheet C1 shown in Fig. 6 in half and pasting the edges of the expanding sheet C1. The expanding sheet C1 and the holder expanding sheet member 2 include an upper expanding sheet 21 formed by extending the upper holder portion 11 in the width direction D12, and a lower expanding sheet 22 formed by extending the lower holder portion 12 in the width direction D12.

[0026] The upper deployment sheet 21 is a sheet-like member that includes a top wall 111 that constitutes the upper holder portion 11, a pair of inclined walls 112, and two pairs of holding flaps 113.

[0027] The lower developing sheet 22 is a continuous sheet that is continuous with the upper developing sheet 21 at the bottom edge 112b of the first inclined wall 112-1 of the pair of inclined walls 112. The lower developing sheet 22 and the upper developing sheet 21 are overlapped to form the holder developing sheet member 2 in the form of a two-ply flat sheet. The lower developing sheet 22 is folded into the lower holder part 12 in accordance with the folding of the upper developing sheet 21 into the upper holder part 11. The lower developing sheet 22 includes a bottom wall 121 that forms the lower holder part 12, and a pair of connecting walls 122, and each connecting wall 122 includes an inner inclined wall 122a and an attachment wall 122b.

[0028] Furthermore, the deployed width W11 of the upper deployed sheet 21 in the width direction D12 and the deployed width W12 of the lower deployed sheet 22 in the width direction D12 are the same width. Therefore, when one deployed sheet C1 is folded in half at the bottom edge 112b, the edge of the second attachment wall 122b-2 located opposite the bottom edge 112b is aligned with the bottom edge 112b of the second inclined wall 112-2 to which it is attached.

[0029] The processing of a single expanded sheet C1 into the holder expanded sheet member 2 is performed by folding the expanded sheet C1 in half at the bottom edge 112b and attaching the first and second attachment walls 122b-1 and 122b-2 to the first and second inclined walls 112-1 and 112-2. The attachment is performed by applying adhesive to the first and second attachment walls 122b-1 and 122b-2 or the first and second inclined walls 112-1 and 112-2 before folding, and then folding the sheet in half after the adhesive is applied.

[0030] In establishments such as restaurants that handle the holder member 1 shown in Figures 1 to 5, the holder member 1 is stored in the state of the holder-expanding sheet member 2 shown in Figures 7 and 8. When the holder member 1 is to be used, the holder member 1 is formed by deforming the holder-expanding sheet member 2 so that the top wall 111 and the bottom wall 121 are pulled away from each other.

[0031] FIG. 9 is a diagram showing how the holder member shown in FIGS. 1 to 5 is formed from the holder development sheet member shown in FIGS.

[0032] As shown in Fig. 9, the transformation from the holder-expanding sheet member 2 to the holder member 1 is performed manually by an operator Y1. At this time, the two target through-holes 111a in the upper expandable sheet 21 in the expanded state are used as handles when folding and forming the upper holder portion 11 and the lower holder portion 12 by the above-mentioned separation. Furthermore, two bottom-wall through-holes 121b are also formed in the bottom wall 121 of the lower expandable sheet 22, and are used as handles when folding and forming the lower holder portion 12. As shown in Fig. 7, the two bottom-wall through-holes 121b are circular holes formed so as to be approximately concentric with the two target through-holes 111a when the holder-expanding sheet member 2 is in the state of being.

[0033] When transforming into the holder member 1, the worker Y1 places the fingers of one hand through the two target through-holes 111a and the fingers of the other hand through the two bottom wall through-holes 121b. When the worker Y1 applies force in a deformation direction D15 that pulls the top wall 111 and the bottom wall 121 apart from each other, the upper deployable sheet 21 is folded toward the upper holder part 11, and at the same time, the lower deployable sheet 22 is folded toward the lower holder part 12. This folding forms the holder member 1.

[0034] The holder member 1 and holder-deploying sheet member 2 of the first embodiment described above can achieve the following effects. That is, in this embodiment, a pair of holding flaps 113 extending inwardly from a pair of inclined walls 112 hold the holding object A1 that has penetrated the target through-hole 111a in the top wall 111 by sandwiching it above the top wall 111. This holding on the upper side allows the holding object A1 to be held with greater stability than when the holding object A1 is held only by the target through-hole 111a in the top wall 111. Furthermore, the top wall 111 is positioned below the holding positions of the pair of holding flaps 113 on the holding object A1. This allows the height dimension of the structure consisting of the upper holder part 11 including the top wall 111 and the lower holder part 12 supporting the lower side thereof to be smaller, thereby reducing material costs. Furthermore, the target through-hole 111a through which the tapered holding object A1, such as a cup, passes can be made smaller in diameter than when the holding flap 113 passes through the holding position of the holding object A1. As a result, the area of ​​the top wall 111 can be reduced, which also contributes to reducing material costs. Thus, according to this embodiment, the holding object A1 can be held with high stability and material costs can be reduced.

[0035] Furthermore, according to this embodiment, the inclination of the pair of inclined walls 112 and the pair of holding flaps 113 in the holder member 1 is determined by the holding flaps 113 abutting against the holding object A1 that has passed through the target through-hole 111a. Therefore, even if the diameter size of the holding object A1 varies slightly, the position of the holding flaps 113 can be finely adjusted to set the inclination of the inclined walls 112 and the holding flaps 113 according to the diameter size, thereby allowing the holding object A1 to be properly held. In other words, according to this embodiment, a high degree of freedom can be obtained in determining the diameter size of the holding object A1.

[0036] In this embodiment, when the upper holder portion 11 is in an expanded state, the pair of holding flaps 113 extend from the pair of top wall side edges 111b to the inside of the target through hole 111a, with the extending edges 113a facing the width direction D12 of the top wall 111. With this configuration, as shown in FIG. 7 , the cut-and-raised portions 113b of the pair of holding flaps 113 from the top wall side edges 111b to the target through hole 111a are integrated with the top wall 111 in the expanded state and become part of it, so they can be formed using this part. Furthermore, the edge side portions 113c, including the extending edges 113a that are inside the target through hole 111a, can be formed using the missing portion of the target through hole 111a. This eliminates the need for additional material to form the holding flaps 113, further reducing material costs.

[0037] Furthermore, in this embodiment, the extending edge 113a of each holding flap 113 is formed in a shape (specifically, an arc-shaped concave shape) that corresponds to the outer surface shape of the holding object A1, and the inner edge of the target through hole 111a in the top wall 111 is formed in a shape (specifically, an arc-shaped concave shape) that corresponds to the outer surface shape of the holding object A1. With this configuration, the extending edge 113a of the holding flap 113 and the inner edge of the target through hole 111a, which have shapes that correspond to the outer surface shape of the holding object A1, can hold the holding object A1 with even higher stability.

[0038] In this embodiment, the inner edge of the target through hole 111a holds the object to be held A1 in a direction D14 intersecting the clamping direction D13 by the pair of holding flaps 113 below the extending end edges 113a of each holding flap 113. With this configuration, the object to be held A1 can be held with even higher stability by the pair of holding flaps 113 holding the object to be held in the clamping direction D13 on the upper side and the inner edge of the target through hole 111a holding the object to be held in the intersecting direction D14 on the lower side.

[0039] In this embodiment, the pair of connecting walls 122 includes a pair of inner inclined walls 122a and a pair of attached walls 122b. The pair of inner inclined walls 122a are a pair of wall portions that extend in an outwardly inclined manner from the pair of bottom wall side edges 121a to the inner surfaces of the pair of inclined walls 112. The pair of attached walls 122b are a pair of wall portions that extend from the end edges 122a-1 of the pair of inner inclined walls 122a that reach the inner surfaces of the inclined walls 112 and are attached to the inner surfaces so as to overlap the inner surfaces. With this configuration, when the holder member 1 is placed so that the bottom wall 121 of the lower holder part 12 is placed on top, the pair of inclined walls 112 to which the pair of attached walls 122b are attached function as a pair of leg walls that support the upper holder part 11 on both sides of the bottom wall 121. This allows the held object A1 to be held with even greater stability. Furthermore, with the above-described configuration, the length of the attachment wall 122b of the connecting wall 122 can be adjusted, for example, so that the bottom wall 121 is slightly raised above the placement surface before the holding object A1 is set, thereby achieving the following effect: When the holding object A1 is set on the holder member 1 in this state, the weight of the holding object A1 presses the bottom wall 121 down toward the placement surface, and a force acts on the pair of holding flaps 113 to narrow the gap between the extending edges 113a. As a result, the force with which the pair of holding flaps 113 press the holding object A1 with the extending edges 113a is further strengthened, thereby improving the holding force for the holding object A1.

[0040] In this embodiment, the pair of attachment walls 122b extend and are attached to the bottom edges 112b of the pair of inclined walls 112, forming a double wall from the reaching edge 122a-1 to the bottom edge 112b. With this configuration, the pair of inclined walls 112 form a double wall from the reaching edge 122a-1 on the lower side to the bottom edge 112b, so that the object A1 to be held can be held with even greater stability.

[0041] In this embodiment, the lower holder portion 12 has a first attachment wall 122b-1 formed by folding a continuous sheet that is continuous with the first sloping wall 112-1 at the bottom edge 112b. The first attachment wall 122b-1 is folded back along the bottom edge 112b and attached to the first sloping wall 112-1, and the second attachment wall 122b-2 is attached separately from the second sloping wall 112-2 and overlaps the second sloping wall 112-2. With this configuration, the upper holder portion 11 and the lower holder portion 12 are formed by folding a single unfolded sheet C1 and attaching the first attachment wall 122b-1 and the second attachment wall 122b-2. At this time, the relative positional relationship between the first attachment wall 122b-1 and the second attachment wall 122b-2 and the first inclined wall 112-1 and the second inclined wall 112-2 to be attached is approximately determined by folding the unfolded sheet C1, so alignment for attachment is not required. Therefore, compared to, for example, a case in which a sheet-like material for the upper holder part 11 and a separate sheet-like material for the lower holder part 12 are attached together, the number of steps for manufacturing the holder member 1 can be reduced, and the manufacturing cost for the holder member 1 can be kept down.

[0042] In this embodiment, when the lower holder part 12 and the upper holder part 11 are unfolded, the unfolded upper holder part 11 and the lower holder part 12 are overlapped in a flat sheet state. According to this configuration, by folding the holder member 1 into a flat sheet state, it can be stored in a space-saving manner and can be transformed into the holder member 1 as needed.

[0043] In this embodiment, a bottom wall through-hole 121b is formed in the bottom wall 121 of the lower holder part 12. The target through-hole 111a of the upper holder part 11 in the unfolded state and the bottom wall through-hole 121b of the lower holder part 12 in the unfolded state serve as clues when separating the top wall 111 and the bottom wall 121 from each other to bend and form the upper holder part 11 and the lower holder part 12. With this configuration, the upper holder part 11 and the lower holder part 12 can be efficiently bent and formed in a one-step operation in which the target through-hole 111a and the bottom wall through-hole 121b are used as clues to separate the top wall 111 and the bottom wall 121 from each other.

[0044] This concludes the description of the first embodiment, and next, a second embodiment will be described.

[0045] Fig. 10 is a perspective view showing a holder member according to the second embodiment. In Fig. 10, components equivalent to those in the holder member 1 of the first embodiment shown in Fig. 1 are assigned the same reference numerals as in Fig. 1 only for those components necessary for explanation, and duplicate explanations of these equivalent components will be omitted below.

[0046] First, the holder member 5 of this embodiment is a paper drink holder that holds two drink cups as the holding object A1 side by side, similar to the first embodiment. Here, in this embodiment, a dividing perforation 5a is provided across the holder member 5 at the center in the longitudinal direction D11, so that the holder member 5 can be divided into two holders, each of which holds only one holding object A1.

[0047] Furthermore, the top wall 511, which constitutes the upper holder section 51 together with the pair of inclined walls 112 and the two pairs of holding flaps 513, has the following bending perforations 511b formed thereon. The bending perforations 511b are arc-shaped perforations formed on the outer periphery of each inner edge portion of the target through hole 511a that sandwiches the holding object A1. Furthermore, two bending slits 511c are formed across each bending perforation 511b and each inner edge portion of the target through hole 511a. These bending perforations 511b and bending slits 511c enable the diameter of the target through hole 511a to be expanded as follows, for example, when a large-sized drink cup is inserted into the target through hole 511a. That is, when the area between the bending perforation 511b and the inner edge of the target through hole 511a is pressed against a large-sized drink cup, the area is divided by the bending slit 511c and folded inward along the bending perforation 511b, thereby expanding the diameter of the target through hole 511a. The holding flap 513 is substantially the same as the holding flap 113 of the first embodiment, but has an inwardly curled portion 513a formed at the base of a pair of side edges. The formation of this inwardly curled portion 513a reduces the stress load on the base when the holding flap 513 is folded up.

[0048] In this embodiment, the lower holder part 52 includes a bottom wall 521, an inner inclined wall 522a, and an attached wall 522b, which are substantially the same as those in the first embodiment, and also includes a return-restricting protrusion 522c. The return-restricting protrusion 522c, together with the inner inclined wall 522a and the attached wall 522b, constitutes the connecting wall 522.

[0049] The return-restricting protrusions 522c are tongue-shaped protrusions (at least one protrusion each, four protrusions in this embodiment) that protrude from the inner edge of the inclined wall 112 of the upper holder portion 51 on each of the pair of inner inclined walls 522a. Each return-restricting protrusion 522c is a flat, trapezoidal tongue that is wide in the longitudinal direction D11 and protrudes a short distance from the edge of the inner inclined wall 522a. Each return-restricting protrusion 522c abuts the inner surface of the corresponding inclined wall 112 with its protruding edge and presses the inner surface outward. This outward pressure prevents the pair of inclined walls 112 and the pair of inner inclined walls 522a from returning to their seated positions.

[0050] In this embodiment, the lower holder part 52 further includes a pair of bottom wall-side flaps 523. The pair of bottom wall-side flaps 523 are a pair of rectangular flaps that extend from each end edge of the bottom wall 521 of the lower holder part 52 in the longitudinal direction D11 and are folded back inward. In this embodiment, the bottom wall 521 is formed with a transverse through-hole 521a that crosses the bottom wall 521 in the width direction D12. The transverse through-hole 521a is formed with band-like holes whose both ends overlap the bottom wall 521 sides of the pair of inner inclined walls 522a.

[0051] As in the first embodiment, the holder member 5 of this embodiment is formed by user operation on a flat sheet-state holder unfolded sheet member 6 (Figures 12 and 13) formed from a single unfolded sheet C5 (Figure 11) described below.

[0052] FIG. 11 is a plan view showing one spread sheet for obtaining the holder member shown in FIG. 10. FIG. 12 is a top view of the holder-spread sheet member in a flat sheet state formed from the spread sheet shown in FIG. 11, as viewed from the direction of arrow V53 in FIG. 10. FIG. 13 is a bottom view of the holder-spread sheet member in a flat sheet state formed from the spread sheet shown in FIG. 11, as viewed from the direction of arrow V54 in FIG. In these FIGS. 11 to 13, components equivalent to those in the spread sheet C1 and holder-spread sheet member 2 of the first embodiment shown in FIGS. 6 to 8 are assigned the same reference numerals as in FIGS. 6 to 8, only when necessary for explanation. Below, a repeated explanation of these similar components will be omitted.

[0053] 12 and 13 is formed by folding the single expanding sheet C5 shown in Fig. 11 in half and pasting the edge portions of the expanding sheet C5. The expanding sheet C5 and the holder expanding sheet member 6 include an upper expanding sheet 61 formed by extending the upper holder portion 51 in the width direction D12, and a lower expanding sheet 62 formed by extending the lower holder portion 52 in the width direction D12.

[0054] The upper deployment sheet 61 is a sheet-like member including a top wall 511 forming the upper holder portion 51, a pair of inclined walls 112, and two pairs of holding flaps 513.

[0055] The lower deployable sheet 62 is a continuous sheet that is continuous with the first sloped wall 112-1 of the pair of sloped walls 112. The lower deployable sheet 62 and the upper deployable sheet 61 are overlapped to form the holder deployable sheet member 6 in the form of a two-ply flat sheet. The lower deployable sheet 62 is folded toward the lower holder portion 52 in accordance with the folding of the upper deployable sheet 61 toward the upper holder portion 51. The lower deployable sheet 62 includes a bottom wall 521 that forms the lower holder portion 52, and a pair of connecting walls 522. Each connecting wall 522 includes an inner sloped wall 522a, an attachment wall 522b, and four return-restricting protrusions 522c. As shown in FIGS. 11 and 13 , the return-restricting protrusions 522c are cut out from the attachment walls 522b.

[0056] As in the first embodiment, the processing of a single developing sheet C5 into the holder developing sheet member 6 is performed by folding the developing sheet C5 in half and attaching the first and second attaching walls 522b-1 and 522b-2 to the first and second inclined walls 112-1 and 112-2. In addition, in the lower developing sheet 62, the pair of bottom wall-side flaps 523 are folded inward.

[0057] When the holder member 5 is used, the holder unfolding sheet member 6 is deformed as follows by utilizing the transverse through-hole 521a that traverses the bottom wall 521 and has both ends resting on the pair of inner inclined walls 522a.

[0058] Figure 14 is a diagram showing how the holder member shown in Figure 10 is formed from the holder-expanding sheet member shown in Figures 12 and 13. In Figure 14, the same components as those in the first embodiment shown in Figures 6 to 8 are denoted by the same reference numerals as in Figures 6 to 8, but only those necessary for explanation are used. Below, a duplicate explanation of these similar components will be omitted.

[0059] 14, in this embodiment, too, the deformation from the holder deploying sheet member 6 to the holder member 5 is performed manually by an operator Y5. At this time, the transverse through-hole 521a in the deployed lower deploying sheet 62 is used as a guide when folding and forming the upper holder portion 51 and the lower holder portion 52.

[0060] When transforming the holder member 5, the worker Y5 inserts the thumbs of both hands into both ends of the transverse through-hole 521a in the bottom wall 521 to bend the inner edges at both ends. In this state, the worker Y5 uses his other fingers to bend the pair of inclined walls 112 in the bending direction D51, thereby erecting the pair of inclined walls 112 and the pair of connecting walls 522. At this time, the thumbs apply force to the inner edges at both ends of the transverse through-hole 521a so as to separate them to the left and right, thereby using each inner edge as a fulcrum for erecting the inclined walls 112 and the connecting walls 522. As shown in FIGS. 11 and 13 , the bottom wall 521 has bottom-side perforation arrows 521b indicating the direction in which the thumbs should apply force near both ends of the transverse through-hole 521a. Furthermore, the attachment wall 522b has inclined-side perforation arrows 522d indicating the direction in which the inclined walls 112 and the connecting walls 522 should be erected.

[0061] Furthermore, when the inclined wall 112 and the connecting wall 522 are erected, the return-restricting protrusion 522c, which is continuous with the inner inclined wall 522a, is cut and raised from the attached wall 522b while its protruding edge rubs against the inner surface of the inclined wall 112, leaving a cut-and-raise hole 522e in the attached wall 522b. The return-restricting protrusion 522c is cut and raised until the surface of the return-restricting protrusion 522c that was exposed in the state of the lower deployed seat 62 is turned over so that it faces the inner surface of the inclined wall 112. In this turned-over state, the return-restricting protrusion 522c presses outward with its protruding edge against the inner surface of the inclined wall 112. This pressure restricts the inward inclination of the inclined wall 112 and the outward inclination of the inner inclined wall 522a from returning to their seat states, stabilizing each inclined state. When this return-limiting protrusion 522c turns over and its protruding edge presses the inner surface of the inclined wall 112 outward, the bending deformation from the upper expansion sheet 61 and the lower expansion sheet 62 to the upper holder part 51 and the lower holder part 52 is completed, and the holder member 5 is completed.

[0062] The division along the dividing perforations 5a may be performed on the holder member 5 after the above-described bending deformation, or on the holder-expanding sheet member 6 before the bending deformation. In either state, the holder member 5 can be divided into two by cutting along the dividing perforations 5a.

[0063] It goes without saying that the holder member 5 and holder deployment sheet member 6 of the second embodiment described above can hold the object to be held A1 with high stability while reducing material costs, just like the first embodiment described above.

[0064] In this embodiment, the connecting wall 522 is provided with at least one (four in this embodiment) return-restricting protrusion 522c that protrudes tongue-like from the edge of each inner inclined wall 522a. The return-restricting protrusion 522c presses the inner surface of the inclined wall 112 outward with its protruding edge, thereby restricting the return of the inwardly inclined state of the inclined wall 112 and the outwardly inclined state of the inner inclined wall 522a to the sheet state. This configuration effectively restricts the return of the holder member 5 to the holder-deploying sheet member 6, thereby favorably maintaining the shape of the holder member 5.

[0065] In this embodiment, a transverse through-hole 521a is formed in the bottom wall 521 of the lower holder part 52, and the inner edges at both ends of the transverse through-hole 521a serve as handles when bending and forming the upper holder part 51 and the lower holder part 52. According to this configuration, when the worker Y5 places his or her thumbs on the inner edges at both ends of the transverse through-hole 521a, the inner edges function as fulcrums when erecting the inclined wall 112 and the connecting wall 522, thereby improving workability.

[0066] In this embodiment, the lower holder portion 52 is provided with a pair of bottom wall-side flaps 523 that extend from both end edges of the bottom wall 521 and fold inward. This configuration effectively prevents the bottom wall 521 from being flexed or deformed in the width direction D12. Furthermore, folding the bottom wall-side flaps 523 inward creates a gap between the upper holder portion 51 and the lower holder portion 52, the gap being equal to the thickness of the bottom wall-side flaps 523. As a result, it becomes easier for the operator Y5 to insert his or her fingers into the transverse through-holes 521a formed in the bottom wall 521 as described above, improving the workability of the folding process.

[0067] The first and second embodiments described above are merely representative examples, and the holder member and the holder-expanding sheet member are not limited to these embodiments. In other words, those skilled in the art can implement various modifications in accordance with conventionally known knowledge.

[0068] For example, in the first and second embodiments described above, holder members 1 and 5 and holder-expanding sheet members 2 and 6 are shown as examples of holder members and holder-expanding sheet members for holding a drink cup as a held object A1. However, the holder members and holder-expanding sheet members are not limited to these, and the specific form of the held object is not important as long as the holder member and holder-expanding sheet member hold the held object A1 by sandwiching it between a pair of holding flaps, with the target through-hole passing through it.

[0069] Furthermore, in the first and second embodiments described above, as examples of the holder member and holder-expanding sheet member, the holder members 1 and 5 and the holder-expanding sheet members 2 and 6 are shown as examples of holder members and holder-expanding sheet members for holding two holding objects A1 side by side. In this example, two target through holes 111a and 511a are provided, and two pairs of holding flaps 113 and 513 are provided. However, the holder members and holder-expanding sheet members are not limited to this, and the specific number of holding objects may be one, three, or more. Furthermore, when holding three or more holding objects, the holding objects do not need to be arranged in a row, and the arrangement can be set as appropriate.

[0070] In the first and second embodiments described above, the holder members 1 and 5 and the holder-expanding sheet members 2 and 6 are made of paper as examples of the holder members and the holder-expanding sheet members. However, the holder members and the holder-expanding sheet members are not limited to these. The holder members and the holder-expanding sheet members may be made of, for example, a plastic sheet, a metal sheet, a wooden sheet, or the like that is thin enough to be bendable, and the specific material for forming them is not limited to these.

[0071] In the first and second embodiments described above, a pair of holding flaps 113, 513 are illustrated as an example of a pair of holding flaps that extend into the target through holes 111a, 511a in the upper deployable sheet 21, 61 and have their extending edges 113a facing each other in the width direction D12 of the top wall 111, 511. However, the pair of holding flaps is not limited to this, and their specific arrangement, shape, etc. can be set arbitrarily as long as they hold the object to be held by sandwiching it between their extending edges. However, as described above, the pair of holding flaps 113, 513 that extend into the target through holes 111a, 511a and face each other can utilize part of the top wall 111, 511 or the missing portion of the target through holes 111a, 511a, which further reduces material costs.

[0072] In the first and second embodiments described above, an example of a pair of holding flaps is a pair of holding flaps 113, 513 in which each extending edge 113a is formed in a shape corresponding to the outer surface shape of the holding object A1 (specifically, a concave arc shape). In the present embodiment, an example of a target through hole in the top wall is a pair of target through holes 111a, 511a in which the inner edge is formed in a shape corresponding to the outer surface shape of the holding object A1 (specifically, a concave arc shape). However, the pair of holding flaps and the target through holes are not limited to this, and any shape may be adopted for the extending edge of each holding flap and the inner edge of the target through hole as long as they can abut against the holding object. However, as described above, by forming the extending edge 113a of each holding flap 113, 513 and the inner edge of the target through hole 111a, 511a in a shape corresponding to the outer surface shape of the holding object A1, the holding object A1 can be held with even greater stability.

[0073] Furthermore, in the first and second embodiments described above, the target through holes 111 a, 511 a are exemplified as examples of the target through holes, whose inner edges hold the holding object A1 so as to sandwich it below the extending end edges 113 a of each holding flap 113, 513. However, the target through holes are not limited to this, and their inner edges may be spaced apart from the holding object and may not perform any holding function. However, as described above, by providing the target through holes 111 a, 511 a in the top wall 111, 511, whose inner edges hold the holding object A1 so as to sandwich it, the holding object A1 can be held even below the extending end edges 113 a of the holding flaps 113, 513, and the holding object A1 can be held with even greater stability.

[0074] In the first and second embodiments described above, an example of a pair of connecting walls is a pair of connecting walls 122, 522 including a pair of inner inclined walls 122a, 522a and a pair of attached walls 122b, 522b, each having a V-shaped cross section convex toward the top wall 111, 511. However, the pair of connecting walls is not limited to this, and any specific connecting manner is possible as long as they extend from the side edges of a pair of bottom walls and are connected to a pair of inclined walls. For example, the upper holder and the lower holder may be formed separately, and the lower holder may have only a pair of inner inclined walls as connecting walls, with insertion pieces formed at the ends of each inner inclined wall and slits formed in each inclined wall into which the insertion pieces are inserted and engaged. However, as described above, the pair of connecting walls 122, 522 having a pair of inner inclined walls 122a, 522a and a pair of attaching walls 122b, 522b can hold the object to be held A1 with even greater stability. In the separate structure of the upper and lower holders as described above, when a pair of inner inclined walls and a pair of attaching walls are provided as connecting walls, each attaching wall may be attached to the upper bottom side of the inner surface of each inclined wall, rather than the lower bottom side as in the first and second embodiments.

[0075] In the first and second embodiments described above, a pair of attached walls 122b, 522b are illustrated as an example of a pair of attached walls that are formed so as to form a double wall up to the bottom edges 112b of the pair of inclined walls 112. However, the pair of attached walls is not limited to this, and may be formed so as not to extend to the bottom edges of the inclined walls, leaving the vicinity of the bottom edges of the inclined walls as a single wall. However, as described above, a pair of attached walls 122b, 522b that are formed so as to form a double wall up to the bottom edges 112b can hold the object A1 with even greater stability.

[0076] Furthermore, in the first and second embodiments described above, the lower holder portion 12, 52 is exemplified as an example of the lower holder portion, in which the first attachment wall 122b-1, 522b-1 is formed by folding a continuous sheet material that is connected to the first sloping wall 112-1 and the bottom edge 112b. However, the lower holder portion is not limited to this, and may be formed by folding a separate sheet material that is separate from the sheet material that forms the upper holder portion 11, 51. However, as described above, forming the lower holder portion 12, 52 from the above-mentioned continuous sheet material can reduce the number of steps required to manufacture the holder members 1, 5, and can reduce the manufacturing costs of the holder members 1, 5. Note that when the upper holder portion and the lower holder portion are formed as separate sheet materials, the attachment destination of the connecting wall connecting the two is not limited to the lower bottom side of the sloping wall, but may also be the upper bottom side.

[0077] Furthermore, in the first and second embodiments described above, the holder members 1 and 5 are exemplified as an example of a holder member, which assume a flat sheet state when the lower holder portion 12 and 52 and the upper holder portion 11 and 51 are each unfolded. However, the holder member is not limited to this, and may be one that maintains its three-dimensional shape without assuming a flat sheet state. However, as described above, by folding the holder members 1 and 5 into a flat sheet state, they can be stored in a space-saving manner and then transformed into the holder members 1 and 5 for use as needed.

[0078] Furthermore, in the first embodiment described above, the holder member 1 and the holder-expanding sheet member 2 are exemplified as examples of the holder member and the holder-expanding sheet member, in which the target through-hole 111a of the upper holder part 11 and the bottom wall through-hole 121b of the lower holder part 12 serve as clues for deformation. However, the holder member and the holder-expanding sheet member are not limited to this, and may not have any particular parts that serve as clues for deformation. However, as described above, by using the target through-hole 111a and the bottom wall through-hole 121b as clues, the upper holder part 11 and the lower holder part 12 can be efficiently folded and formed.

[0079] In the second embodiment described above, the holder member 5 and the holder-expanding sheet member 6 are exemplified as examples of the holder member and the holder-expanding sheet member, which are provided with a dividing perforation 5a and can be divided into two. However, the holder member and the holder-expanding sheet member are not limited to this, and may be indivisible as in the first embodiment.

[0080] In the second embodiment described above, the holder member 5 and the holder-expanding sheet member 6 are exemplified as examples of the holder member and the holder-expanding sheet member, in which the bending perforations 511b and the bending slits 511c are provided so that the target through hole 511a can be expanded in diameter. However, the holder member and the holder-expanding sheet member are not limited to this, and the target through hole 111a may be one in which the diameter cannot be expanded, as in the first embodiment.

[0081] In the second embodiment described above, a holding flap having an inwardly curved portion 513a formed at the base of the side edge is exemplified as an example of the holding flap. However, the holding flap is not limited to this, and may not have any curved portion as in the first embodiment.

[0082] In the second embodiment described above, the connecting wall 522 is exemplified by a connecting wall 522 having at least one (four in this example) return-restricting protrusion 522c protruding tongue-like from each end edge of the inner sloped wall 522a. However, the connecting wall is not limited to this, and the connecting wall 522 may not have a return-restricting protrusion, as in the first embodiment. However, as described above, providing the return-restricting protrusion 522c on the connecting wall 522 can favorably maintain the shape of the holder member 5. Even when the return-restricting protrusion 522c is provided, it is not limited to the second embodiment in which it is provided together with the transverse through-hole 521a, the inwardly curved portion 513a, the bottom wall-side flap 523, etc. For example, the return-restricting protrusion 522c may be provided on the holder member 1 of the first embodiment described above, which does not have these configurations.

[0083] Furthermore, in the second embodiment described above, as an example of a holder member and a holder-expanding sheet member, a holder member 5 and a holder-expanding sheet member 6 are illustrated in which a transverse through-hole 521a is formed in the bottom wall 521, and the inner edges at both ends of the transverse through-hole 521a serve as guides for folding. However, the holder member and the holder-expanding sheet member are not limited to this, and other guide configurations shown in the first embodiment may be adopted, and the specific guide configuration is not limited to this. Furthermore, the holder member and the holder-expanding sheet member may not be provided with any guides for folding. However, as described above, using the inner edges at both ends of the transverse through-hole 521a in the bottom wall 521 as guides improves the workability of folding.

[0084] In the second embodiment described above, the holder member 5 and holder-expanding sheet member 6 are illustrated as an example of a holder member and a holder-expanding sheet member in which a pair of bottom wall-side flaps 523 are provided on the lower holder portion 52. However, the holder member and holder-expanding sheet member are not limited to this, and may not have any bottom wall-side flaps, as in the first embodiment. However, as described above, providing a pair of bottom wall-side flaps 523 can effectively suppress bending deformation, etc., of the bottom wall 521 in the width direction D12. Also, as described above, folding back the bottom wall-side flaps 523 creates a gap between the upper holder portion 51 and the lower holder portion 52, thereby improving the workability of folding and forming the holder-expanding sheet member using the transverse through-holes 521a.

[0085] 1, 5 Holder member 2, 6 Holder expanding sheet member 5a Division perforation 11, 51 Upper holder portion 12, 52 Lower holder portion 21, 61 Upper expanding sheet 22, 62 Lower expanding sheet 111, 511 Top wall 111a, 511a Target through hole 111b Top wall side edge 112 Inclined wall 112-1 First inclined wall 112-2 Second inclined wall 112a Projecting edge 112b Bottom side edge 113, 513 Holding flap 113a Extended edge 113b Cut-and-raised portion 113c End edge side portion 121, 521 Bottom wall 121a Bottom wall side edge 121b Bottom wall through hole 122, 522 Connecting wall 122a, 522a Inner sloped wall 122a-1 Reaching edge 122b, 522b Attached wall 122b-1, 522b-1 First attached wall 122b-2, 522b-2 Second attached wall 511b Bending perforation 511c Bending slit 513a Inwardly rolled R portion 521a Transverse through hole 521b Bottom side perforation arrow 522c Return restriction protrusion 522d Slope side perforation arrow 523 Bottom wall side flap A1 Holding object B1 Trapezoid B11 Upper base B12 Lower base B13 Legs C1, C5 Unfolded sheet D11 Longitudinal direction D12 Width direction D13 Clamping direction D14 Cross direction D15 Deformation direction D51 Folding direction Y1, Y5 Operator W11, W12 Deployment width

Claims

1. An upper holder section in which a sheet-like material is folded to have a cross-sectional shape that is a trapezoid with a pair of legs inclined inward toward the upper base, excluding the lower base, and which holds an object to be held on the upper base side; and a lower holder section in which a continuous sheet-like material that is continuous with the sheet-like material or a separate sheet-like material that is separate from the sheet-like material is folded so that part of the cross-sectional shape follows the lower base, wherein the upper holder section comprises: a top wall that is a band-shaped wall portion corresponding to the upper base and has a target through hole through which the object to be held passes; a pair of sloping walls extending from a pair of top wall side edges of the top wall to correspond to the pair of legs; and a pair of holding flaps that are cut out from the sheet-like material so as to extend contiguously with the top wall side of the pair of sloping walls in an inwardly inclined manner toward the target through hole, and which abut against the object to be held that has passed through the target through hole at each extended edge, thereby sandwiching and holding the object to be held; and the lower holder section A holder member characterized by comprising: a bottom wall, which is a strip-shaped wall portion corresponding to a part of the lower bottom, on which the object to be held that has passed through the target through hole is placed; and a pair of connecting walls extending from a pair of bottom wall side edges of the bottom wall and connecting to the pair of inclined walls.

2. A holder member as described in claim 1, characterized in that the inner edge of the target through hole in the top wall holds the object to be held in a manner that clamps it in a direction perpendicular to the clamping direction of the pair of holding flaps, on the lower side that is on the top wall side when viewed from the extended end edge of each of the pair of holding flaps.

3. A holder member as described in claim 1, characterized in that the pair of connecting walls comprise a pair of inner inclined walls extending in an outwardly opening manner from the side edges of the pair of bottom walls until they reach the inner surfaces of the pair of inclined walls, and a pair of affixed walls extending from the edges of the pair of inner inclined walls that reach the inner surfaces and affixing them so as to overlap the inner surfaces.

4. A holder member as described in claim 1, characterized in that the pair of connecting walls comprise: a pair of inner inclined walls extending in an outwardly inclined state from the side edges of the pair of bottom walls to reach the inner surfaces of the pair of inclined walls; and at least one tongue-shaped protrusion protruding from the inner surface side edge of each of the pair of inner inclined walls, which protrudes in a tongue-like shape from the inner surface side edge of each of the pair of inner inclined walls and which presses the inner surface outward with its protruding edge, thereby restricting the return of the inwardly inclined state of the pair of inclined walls and the outwardly inclined state of the pair of inner inclined walls to their sheet state.

5. A holder member as described in claim 1, characterized in that when the lower holder portion is in an extended, expanded state and the upper holder portion is in an extended, expanded state, the upper holder portion and the lower holder portion in each expanded state overlap each other to form a flat sheet.

6. A holder member as described in claim 5, characterized in that a bottom wall through-hole is formed in the bottom wall of the lower holder part, and the target through-hole in the upper holder part in the unfolded state and the bottom wall through-hole in the lower holder part in the unfolded state serve as a guide when bending and forming the upper holder part and the lower holder part by pulling the top wall and the bottom wall apart from each other.

7. A holder member as described in claim 5, characterized in that a transverse through-hole is formed in the bottom wall of the lower holder portion, crossing the bottom wall in the width direction, and the inner edges at both ends of the transverse through-hole in the lower holder portion in the unfolded state serve as guides when raising the pair of inclined walls and the pair of connecting walls and bending and forming the upper holder portion and the lower holder portion.

8. A holder member as described in claim 1, characterized in that the extended edge of each of the pair of holding flaps is formed in a shape corresponding to the outer surface shape of the object to be held, and the inner edge of the target through hole in the top wall is formed in a shape corresponding to the outer surface shape of the object to be held.

9. A holder member as described in claim 1, characterized in that the lower holder portion further comprises a pair of bottom wall side flaps extending from each longitudinal edge of the bottom wall of the lower holder portion and folded inward.

10. A sheet member for constituting a holder member according to any one of claims 1 to 9, comprising: an upper developing sheet in which the upper holder portion is stretched; and a lower developing sheet in which the lower holder portion is stretched, the lower developing sheet being superimposed on the upper developing sheet to form a two-ply flat sheet state, and being folded into the lower holder portion in response to the upper developing sheet being folded into the upper holder portion.

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