Reinforced handle tray

Abstract

This tray features a reinforced handle that allows for a stable thumb placement and easy gripping, while maintaining the strength of the left and right side panels that serve as gripping points. [Solution] The tray comprises a tray body B1 made of a single synthetic resin sheet material and corner members C attached to the four upper corners thereof. The tray body has an inner surface of the left plate portion 5 and an inner surface of the right plate portion 4, respectively, with the outer surfaces of connecting pieces 2C and 3C in contact, and notches 2D and 3D forming insertion portions. The connecting pieces are sandwiched between the left plate portion and the left bent piece 5B, and the right plate portion and the right bent piece 4B, and the insertion pieces 5C and 4C are inserted into the insertion portions. The left plate portion, one gusset portion 5A, the left bent piece and one insertion piece are arranged in a rectangular cross-section, and the right plate portion, the other gusset portion 4A, the right bent piece and the other insertion piece are arranged in a rectangular cross-section, and each insertion piece is a reinforced handle that serves as a thumb rest.

Description

Technical Field

[0001] The present invention relates to a tray made of synthetic resin that can be used for transporting articles, etc., and is provided with reinforcing portions on the upper parts of the left and right side surfaces to be gripped, and the reinforcing portions have the function of handles that facilitate gripping, and relates to a tray with reinforcing handles.

Background Art

[0002] Disclosing a tray or box formed from a single sheet of synthetic resin material and having a structure with reinforced left and right edges, a foldable transport box comprising a one-piece die-cut board of corrugated material, the board comprising: a rectangular bottom panel, the rectangular bottom panel having a predetermined length and width defined by two side edges and two end edges; a pair of side wall panels, each side wall panel having a folding edge integrally connected to the side edge of the bottom panel, and a first notch fold to form the side wall of the box A pair of sidewall panels that fold along a fold line, each having a top edge opposite the folded edge and two end edges defining the width of the sidewall panel that defines the height of the box; a pair of filler beam panels connected to the end edge of each sidewall panel, each of which extends from each end edge of the sidewall panel along a second notched fold line and folds to form a hollow support beam; a pair of endwall panels, each of which extends along a third notched fold line to the bottom The end wall panels are integrally connected to and extending from the edge of the section panel, and each end wall panel comprises a flap section and an end wall section divided by a first double cut line defining a support surface, where a pair of lock insertion tabs are cut out in the form of the cut line in the flap section and interlock with a pair of retaining tabs formed in place on the filler beam panel, so as to be able to hold the support beam against the end wall section of the end wall panel when the box is assembled, and where each of the lock insertion tabs and its corresponding retaining tabs A collapsible transport box is known in which the lock insertion tabs face different directions when the box is unfolded and face the same direction when the box is assembled, and the lock insertion tabs are longer than the retaining tabs, while the retaining tabs are wider than the lock insertion tabs, and when the box is assembled, the insertion tabs can be pushed in and inserted through an opening created by pushing the retaining tabs away from the corner panel, and the retaining tabs can hold and lock the insertion lock tabs when the push is released (see, for example, Patent Document 1). [Prior art documents] [Patent Documents]

[0003] [Patent Document 1] Patent No. 3467253 [Overview of the project] [Problems that the invention aims to solve]

[0004] It is common to place handles on the outside of the left and right side panels that serve as the gripping points of a tray. However, placing handles on the outside increases the width of the tray and the required loading space. Therefore, by adding handles that can be placed on the inside of the left and right side panels, it is possible to prevent the loading space from becoming too large. In addition, increasing the strength of the gripping points allows for more stable transport.

[0005] The invention described in Patent Document 1 above is formed using a single sheet of synthetic resin material, and has a bottom plate portion (bottom panel 2) with side plate portions (end wall portions 8) on the left and right sides, with gusset portions (end wall support surfaces 92) connecting to bent plate portions (flap portions 7), and front and rear panels (side wall panels 1 and 3) on the front and back of the bottom plate portion (bottom panel 2), with connecting portions (rectangular tubular filler beams) at both ends. As shown in Figure 5 of Patent Document 1, the box body is reinforced on the upper left and right sides by overlapping and pressing tabs (tabs 66) provided on the bent plate portion (flap portion 7) onto tabs (tabs 77) provided on the connecting portions (rectangular tubular filler beams), and the lower edge of the bent plate portion (flap portion 7) appears to function as a handle to facilitate gripping.

[0006] However, in the configuration of the invention described in Patent Document 1, a gap is formed between the connecting parts (rectangular tubular filler beams), and the bent plate portion (flap portion 7) is locked to tab 77 by tab 66 located above its lower edge. If a thumb is placed on the lower edge of the bent plate portion (flap portion 7), the bent plate portion (flap portion 7) is easily pulled up in the direction of opening, and there is a risk that the locking between tab 66 and tab 77 will be easily released.

[0007] Furthermore, the invention described in Patent Document 1 is a box that can be folded, and if a corner member covering the corner is attached to the upper corner, folding will be hindered. Therefore, it is not possible to attach a corner member to the invention described in Patent Document 1, and such an idea cannot be applied.

[0008] This invention was made in view of the above circumstances, and aims to provide a tray with a reinforced handle that allows the thumb to be placed stably and is easy to grip, while maintaining the strength of the left and right side plates that serve as gripping points. [Means for solving the problem]

[0009] This invention comprises a tray body (B1) made of a single synthetic resin sheet member (S), and corner members (C) attached to the four upper corners of the tray body (B1). The synthetic resin sheet member (S) comprises a bottom plate portion (1), a front plate portion (2) and a rear plate portion (3) continuous with the bottom plate portion (1), connecting pieces (2C) and (3C) provided on the left and right sides of the front plate portion (2) and the rear plate portion (3), a left plate portion (5) and a right plate portion (4) continuous with the left and right sides of the bottom plate portion (1), and left bends provided via gussets (5A) and (4A) to the left of the left plate portion (5) and to the right of the right plate portion (4). It comprises a piece (5B) and a right-bending piece (4B), and insert pieces (5C) (4C) that are continuously provided to the left of the left-bending piece (5B) and to the right of the right-bending piece (4B), the connecting pieces (2C) (3C) each have notches (2D) (3D), the insert pieces (5C) (4C) are fixed in an upright position relative to the left-bending piece (5B) and the right-bending piece (4B), and the gussets (5A) (4A) are each left-side plate ( 5) and the right side plate (4) are fixed in an upright position, and the tray body (B1) is such that the inner surface of the left side plate portion (5) and the inner surface of the right side plate portion (4) abut against the outer surfaces of the connecting pieces (2C) and (3C), respectively, and the notches (2D) and (3D) form the insertion portion, and the connecting pieces (2C) and (3C) are sandwiched between the left side plate portion (5) and the left bent piece (5B), and the right side plate portion (4) and the right bent piece (4B). A tray with a reinforced handle is provided as a means to solve the above problem, having a configuration in which the insertion pieces (5C)(4C) are inserted into the insertion portion, the left plate portion (5), the gusset portion (5A), the left bent piece (5B), and the insertion piece (5C) are arranged in a rectangular cross-section, the right plate portion (4), the gusset portion (4A), the right bent piece (4B), and the insertion piece (4C) are arranged in a rectangular cross-section, and the insertion pieces (5C)(4C) are the parts on which the thumb rests. [Effects of the Invention]

[0010] According to this invention, the insertion pieces (5C) and (4C) are fixed in an upright position relative to the left-bent piece (5B) and the right-bent piece (4B), respectively, and the gussets (5A) and (4A) are fixed in an upright position relative to the left-side plate (5) and the right-side plate (4), respectively. As a result, the insertion pieces (5C) and (4C) are inserted linearly from the lower ends of the left-bent piece (5B) and the right-bent piece (4B) into the insertion area formed by the notches (2D) and (3D), ensuring strength. Furthermore, since the corner members are attached to the four upper corners of the tray body (B1), the left-bent piece (5B) and the right-bent piece (4B) are fixed, so even if the thumb is placed on the insertion piece (5C) and (4C), the insertion piece will not come out. This maintains the strength of the left and right side plates that serve as gripping points, allowing for a stable thumb placement and making it easy to grip. This results in a tray with a reinforced handle that is easy to grip. [Brief explanation of the drawing]

[0011] [Figure 1] This is a plan view showing a synthetic resin sheet unfolded to constitute a tray with a reinforced handle according to an embodiment of the present invention. [Figure 2] (a) A perspective view showing the unfolded synthetic resin sheet of Figure 1, and (b) A partial front view showing the structure near the right-side plate portion. [Figure 3] (a) A perspective view showing a synthetic resin sheet member for forming a tray with a reinforcing handle according to an embodiment of the present invention, and (b) A partial front view showing the configuration near the right side plate portion thereof. [Figure 4] Figure 3(a) is a perspective view showing the front and rear side panels in a folded state. [Figure 5] Figure 4 is a perspective view showing the connecting piece in a bent state. [Figure 6] (a) A perspective view showing the left and right panels in an upright position, as in Figure 5, and (b) A partial front view showing the configuration near the right panel. [Figure 7] (a) A perspective view showing the tray body and corner member of a tray with a reinforced handle according to an embodiment of the present invention, and (b) A partial front view showing a partial cross-section of the structure near the right side plate portion of the tray body. [Figure 8] This is a perspective view of a tray with a reinforced handle according to an embodiment of the present invention. [Modes for carrying out the invention]

[0012] A tray with a reinforced handle according to one embodiment of the present invention comprises a tray body (B1) made of a single synthetic resin sheet member (S), and corner members (C) attached to the four upper corners of the tray body (B1), The synthetic resin sheet member (S) comprises a bottom plate portion (1), a front plate portion (2) and a rear plate portion (3) continuous with the bottom plate portion (1), connecting pieces (2C) and (3C) provided on the left and right sides of the front plate portion (2) and the rear plate portion (3), a left plate portion (5) and a right plate portion (4) continuous with the left and right sides of the bottom plate portion (1), and left turn sections provided via gussets (5A) and (4A) to the left of the left plate portion (5) and to the right of the right plate portion (4). The device comprises a curved piece (5B) and a right-bent curved piece (4B), and insert pieces (5C) and (4C) continuously provided to the left of the left-bent curved piece (5B) and to the right of the right-bent curved piece (4B), the connecting pieces (2C) and (3C) each having notches (2D) and (3D), the insert pieces (5C) and (4C) fixed in an upright position relative to the left-bent curved piece (5B) and the right-bent curved piece (4B), respectively, and the gussets (5A) and (4A) are on the left side, respectively. The tray body (B1) is fixed in an upright position relative to the plate (5) and the right plate (4), and the inner surfaces of the left plate portion (5) and the inner surface of the right plate portion (4) of the tray body (B1) are in contact with the outer surfaces of the connecting pieces (2C) and (3C), respectively, and the notches (2D) and (3D) form the insertion portion, and the connecting pieces (2C) and (3C) are connected to the left plate portion (5) and the left bent piece (5B), and to the right plate portion (4) and the right bent piece (4B) The tray is provided with a configuration in which the insert pieces (5C)(4C) are inserted into the insertion portion, the left plate portion (5), the gusset portion (5A), the left bent piece (5B), and the insert piece (5C) are arranged in a rectangular cross-section, the right plate portion (4), the gusset portion (4A), the right bent piece (4B), and the insert piece (4C) are arranged in a rectangular cross-section, and the insert pieces (5C)(4C) are reinforced handles that serve as thumb rests (first configuration).

[0013] According to the first configuration described above, the insertion pieces (5C) and (4C) are fixed in an upright position relative to the left-bending piece (5B) and the right-bending piece (4B), respectively, and the gussets (5A) and (4A) are fixed in an upright position relative to the left-side plate (5) and the right-side plate (4), respectively. As a result, the insertion pieces (5C) and (4C) are inserted linearly from the lower ends of the left-bending piece (5B) and the right-bending piece (4B) into the insertion portion formed by the notches (2D) and (3D). Furthermore, the left-side plate portion (5) and the right-side plate portion (4), and the gussets (5A) and (4A), and the left-bending piece The tray has a structure that forms a rectangular cross-section when sequentially bent by the curved piece (5B) and the right-bent curved piece (4B), and the respective insert pieces (5C) and (4C). Strength is ensured, and furthermore, because the corner members are attached to the four upper corners of the tray body (B1), the left-bent curved piece (5B) and the right-bent curved piece (4B) are fixed, so even if the thumb is placed on the insert pieces (5C) and (4C), the insert pieces will not come out. This maintains the strength of the left and right side plates that serve as gripping points, allowing for a stable thumb placement and resulting in a reinforced handle tray that is easy to grip.

[0014] Another embodiment of the present invention provides a tray with a reinforced handle, which, in addition to having the first configuration described above, has bent pieces (2B) and (3B) via gussets (2A) and (3A) respectively in front of the front plate portion (2) and behind the rear plate portion (3), and has a configuration in which the inner surface of the front plate portion (2) and the bent piece (2B) abut and fix together, and the inner surface of the rear plate portion (3) and the bent piece (3B) abut and fix together (second configuration).

[0015] According to the second configuration described above, the effects of the first configuration are achieved, and the strength of the front and rear side plates can also be maintained.

[0016] The tray with a reinforcing handle according to another embodiment of the present invention has the above first configuration or the above second configuration, and the corner member includes a left bent piece (5B), a left side plate (5), connection pieces (2C)(3C) sandwiched therebetween, and a right bent piece (4B), a right side plate (4), and connection pieces (2C)(3C) sandwiched therebetween, and can be sandwiched and fixed (third configuration).

[0017] According to the above third configuration, in addition to exerting the operational effects of the above first configuration or second configuration, by enabling sandwiching including the connection piece by the corner member, the fixing at the upper four corners of the tray body (B1) is ensured, and the strength of the tray with a reinforcing handle can be secured.

[0018] Hereinafter, the tray with a reinforcing handle according to an embodiment of the present invention will be described. In the drawings, the same or corresponding parts are denoted by the same reference numerals, and the description thereof will not be repeated. For the sake of easy understanding of the description, in the drawings referred to below, the configuration is shown in a simplified or schematic manner, or some configurations are omitted. Also, the dimensional ratios between the constituent members shown in each drawing do not necessarily indicate the actual dimensional ratios.

Example

[0019] The tray with a reinforcing handle according to an embodiment of the present invention comprises a tray body B1 formed by assembling a single synthetic resin sheet member S shown in FIG. 3, and corner members attached to the upper four corners of the tray body B1 (see FIGS. 7 and 8).

[0020] The synthetic resin sheet member S shown in FIG. 3 is formed by bending and fixing a part of the synthetic resin sheet developed body S1 shown in FIGS. 1 and 2. Although FIG. 1 shows the locking holes 6 used for attaching the corner members, the description of the locking holes 6 is omitted in FIGS. 2 and subsequent figures.

[0021] The synthetic resin sheet unfolded body S1 is constructed by die-cutting a single sheet of low-foaming polypropylene. It comprises a bottom plate portion 1, a front plate portion 2 and a rear plate portion 3 that are continuous to the front and rear of the bottom plate portion 1, connecting pieces 2C and 3C provided on the left and right sides of the front plate portion 2 and the left and right sides of the rear plate portion 3, a left plate portion 5 and a right plate portion 4 that are continuous to the left and right of the bottom plate portion 1, a left bending piece 5B and a right bending piece 4B provided via gussets 5A and 4A to the left of the left bending piece 5B and to the right of the right bending piece 4B, and bending pieces 2B and 3B provided via gussets 2A and 3A in front of the front plate portion 2 and behind the rear plate portion 3, respectively.

[0022] The connecting pieces 2C and 3C each have notches 2D and 3D, respectively. When assembled as the tray body B1, the openings of these notches 2D and 3D abut against each other to form a receiving portion.

[0023] Here, the boundary lines on all four sides of the bottom plate are defined as boundary line L6. The boundary lines between the front plate portion 2 and its left and right connecting pieces 2C, and the boundary lines between the rear plate portion 3 and its left and right connecting pieces 3C are defined as boundary line L7. Boundary lines L6 and L7 are formed by pressing during the die-cutting of the synthetic resin sheet unfolded body S1, thereby creating easily bendable fold lines.

[0024] Furthermore, the boundary line between the insertion piece 5C and the left-bending piece 5B, and between the insertion piece 4C and the right-bending piece 4B are defined as boundary line L1, the boundary line between the left-bending piece 5B and the gusset 5A, and between the right-bending piece 4B and the gusset 4A are defined as boundary line L2, and the boundary line between the left-side plate portion 5 and the gusset 5A, and between the right-side plate portion 4 and the gusset 4A are defined as boundary line L3.

[0025] Furthermore, the boundary lines between the folded pieces 2B and 3B and the gusset portions 2A and 3A are defined as boundary line L4, respectively, and the boundary lines between the gusset portion 2A and the front plate portion 2, and between the gusset portion 3A and the rear plate portion are defined as boundary line L5, respectively.

[0026] A heated, elongated metal member (not shown) with a V-shaped contour in cross-section is used to heat and melt boundary lines L1, L2, and L3. This heating and melting process forms V-shaped grooves in cross-section along boundary lines L1, L2, and L3.

[0027] The V-shaped groove in the molten state at the boundary line L1 is closed in each of the following: the insert piece 5C and the left bend piece 5B, and the insert piece 4C and the right bend piece 4B, respectively, and the insert pieces 5C and 4C are fixed to the left bend piece 5B and the right bend piece 4B so that they stand upright.

[0028] Next, the molten V-shaped grooves at the boundary line L3 are closed in the left plate portion 5 and the gusset portion 5A, and in the right plate portion 4 and the gusset portion 4A, respectively, and the gusset portions 5A and 4A are fixed to the left plate portion 5 and the right plate portion 4 so that they stand upright.

[0029] The V-shaped groove formed at boundary line L2 is allowed to cool in that state, allowing for free bending and restoration.

[0030] Furthermore, a heated, elongated metal member having a V-shaped contour in cross-section is used to heat and melt boundary lines L4 and L5. This heating and melting process forms V-shaped grooves in cross-section along boundary lines L4 and L5.

[0031] The molten V-shaped grooves at boundary line L4 are closed in both the folded piece 2B and the gusset 2A, and in both the folded piece 3B and the gusset 3A. The molten V-shaped grooves at boundary line L5 are also closed in both the gusset 2A and the front plate portion 2, and in both the gusset 3A and the rear plate portion 3. As a result, the folded plate portion 2B is folded back and abuts against the front plate portion 2 via the gusset 2A, and the folded plate portion 3B is folded back and abuts against the rear plate portion 3 via the gusset 3A.

[0032] Based on the above, the synthetic resin sheet member S is constructed as shown in Figure 3.

[0033] Next, we will show how to assemble the tray body using the synthetic resin sheet member S. As shown in Figure 4, the front plate portion 2 and the rear plate portion 3 are erected relative to the bottom plate portion 1. Next, the connecting pieces 2C and 3C are bent and their edges are brought together. At this time, the open ends of the notches 2D and 3D coincide, forming the insertion portion. In this embodiment, the insertion portion is elongated. Since the connecting pieces are fixed by the contact of the edges of the connecting pieces 2C and 3C, the left and right side walls do not become distorted, and the strength of the left and right side walls can be improved.

[0034] As shown in Figure 5, the left plate portion 5 and the right plate portion 4 are raised relative to the bottom plate portion 1. As described above, the V-shaped groove formed at the boundary line L2 is in a state where it can be freely bent and restored, so by lifting the insertion pieces 4C and 5C upward, the left plate portion 5 and the right plate portion 4 can be raised upright without the insertion pieces 4C and 5C interfering with the connecting pieces 2C and 3C (see Figure 6).

[0035] Then, by folding the bent pieces 2B and 3B inward through the V-shaped groove formed at boundary line L2, the insert pieces can be fitted into the insertion part. As a result, the tray body B1 is formed as shown in Figure 7.

[0036] Next, the corner members C disclosed in Figure 7 are fixed to the four upper corners of the tray body B1. As shown in Figure 1, the synthetic resin sheet unfolded is provided with a plurality of locking holes 6, and the corner members C are fixed to the four upper corners of the tray body B1 by engaging with the locking claws (not shown) provided inside the corner members C with the locking holes 6. This constitutes the tray B with reinforced handles, as shown in Figure 8.

[0037] The tray with a reinforced handle according to this embodiment has a structure in which the left plate portion 5, the right plate portion 4, and the left bent piece 5B and the right bent piece 4B provided via the grommets sandwich the connecting pieces 2C and 3C, and then the insertion piece is fitted into the insertion part formed by the connecting pieces 2C and 3C, and the left plate portion 5 and the right plate portion 4, the grommets 5A and 4A, the left bent piece 5B and the right bent piece 4B, and the insertion pieces 5C and 4C are sequentially bent to form a rectangular cross-section, thereby providing an improved strength.

[0038] Furthermore, since the left bendable piece 5B, the right bendable piece 4B, and the respective insertion pieces 5C and 4C are positioned on the inside of the left and right side panels, respectively, the thumb can be stably placed on each insertion piece 5C and 4C, resulting in a tray with a reinforced handle that is easy to grip. [Explanation of symbols]

[0039] B Reinforced handle tray B1 Tray Body C Corner Member L1 border L2 border L3 border L4 boundary line L5 border L6 border L7 border S Synthetic resin sheet material S1 Synthetic resin sheet unfolded 1 Bottom plate part 2 Front side panel 2A Kusube 2B bent piece 2C connector 2D notch 3 Rear side plate 3A Kusube 3B bent piece 3C connection piece 3D cutout 4 Right side plate 4A Kusube 4B Right turn piece 4C insert piece 5 Left side plate 5A Kusube 5B Left turn piece 5C Insertion piece 6 locking holes

Claims

1. The tray body (B1) is made of a single synthetic resin sheet member (S), and corner members (C) are attached to the four upper corners of the tray body (B1). The synthetic resin sheet member (S) comprises a bottom plate portion (1), a front plate portion (2) and a rear plate portion (3) continuous with the bottom plate portion (1), connecting pieces (2C) and (3C) provided on the left and right sides of the front plate portion (2) and the rear plate portion (3), a left plate portion (5) and a right plate portion (4) continuous with the left and right sides of the bottom plate portion (1), and a left bending piece (5B) and a right bending piece (4B) provided via gussets (5A) and (4A) to the left of the left plate portion (5) and to the right of the right plate portion (4). ) and insert pieces (5C) (4C) are provided continuously to the left of the left bending piece (5B) and to the right of the right bending piece (4B), the connecting pieces (2C) (3C) each have notches (2D) (3D), the insert pieces (5C) (4C) are fixed in an upright position to the left bending piece (5B) and the right bending piece (4B), respectively, and the gussets (5A) (4A) are fixed in an upright position to the left plate (5) and the right plate (4), respectively. The tray body (B1) has an inner surface of the left plate portion (5) and the inner surface of the right plate portion (4) that abut against the outer surfaces of the connecting pieces (2C) and (3C), respectively, and the notches (2D) and (3D) form an insertion portion, the connecting pieces (2C) and (3C) are held between the left plate portion (5) and the left bent piece (5B), and the right plate portion (4) and the right bent piece (4B), and the insertion pieces (5C) and (4C) are inserted into the insertion portion. The left plate portion (5), the gusset portion (5A), the left bent piece (5B), and the insert piece (5C) are arranged in a rectangular shape in cross-section. The right-side plate section (4), the gusset section (4A), the right-bent piece (4B), and the insert piece (4C) are arranged in a rectangular shape in cross-section. Furthermore, the tray has a reinforced handle where the insertion pieces (5C) and (4C) serve as the part on which the thumb rests.

2. The tray with a handle according to claim 1, wherein the synthetic resin sheet member (S) is provided with bent pieces (2B) and (3B) via gussets (2A) and (3A) in front of the front side plate portion (2) and behind the rear side plate portion (3), respectively, and the inner surface of the front side plate portion (2) and the bent piece (2B) are in contact and fixed, and the inner surface of the rear side plate portion (3) and the bent piece (3B) are in contact and fixed.

3. The tray with a handle according to claim 1 or 2, wherein the corner member includes a left-bent piece (5B), a left-side plate (5), and connecting pieces (2C) (3C) sandwiched between them, and a right-bent piece (4B), a right-side plate (4), and connecting pieces (2C) (3C) sandwiched between them, and is clamped and fixed.

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