Sticker remover

Abstract

To provide a sticker peeling tool that can peel off a sticker without force escaping, even when an object to which the sticker is attached has no strength.SOLUTION: A pointed tip (12) of a shaft (11) is used to pierce a hole from a sticker surface of an object to which a sticker is attached, and the shaft (11) is rotated to cut the sticker while applying a blade (13) provided around the shaft (11). By making the beginning portion of cutting of the blade (13) extremely small and increasing its width as it is rotated, a cutting portion will apparently extend the blade (13) from the shaft (11), and a reaction point of the cutting portion is its facing side of the shaft (11), and the force is received at the edge of the hole in the object to which the sticker is attached, so that the sticker can be cut without the force escaping. The blade (13) is displaced in the opposite direction from the tip side of the shaft (11) as it is rotated from the beginning portion of cutting, so that after cutting, the blade (13) can peel off the sticker by getting into between a sticker back surface and the object to which the sticker is attached.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a sticker remover used to remove stickers from items with weak stickers attached, such as food tray lids. [Background technology]

[0002] With the rise of the SDGs, food tray recycling is being implemented. Food trays are divided into a lid and a body. A sticker is attached to the lid of the tray, and it is recommended that the sticker be removed when collecting food trays.

[0003] However, it is difficult to peel them off by hand, and there are no specialized tools for doing so, so consumers generally use a hair dryer or boiling water to heat the food tray to weaken the adhesive, and then peel them off by hand. This has the problem of using thermal energy to recycle.

[0004] In addition, current sticker removers can remove stickers by inserting a blade between the front surface of the item to which the sticker is attached and the back surface of the sticker. In order to do so, it is necessary to press down on the surface of the item to which the sticker is attached, but if this is done to the lid of a food tray, the tray will bend due to its lack of strength, which creates a problem. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent 4600789 Summary of the Invention [Problem to be solved by the invention]

[0006] The problem to be solved is that current sticker removers do not exert enough force on stickers that are attached to objects with weak stickers, such as food tray lids.

[0007] This invention has been made to solve the above-mentioned problems, and its object is to provide a sticker remover that does not lose force when in use and that allows the blade to be inserted sufficiently between the surface of the object to which the sticker is affixed and the back surface of the sticker. [Means for solving the problem]

[0008] In order to achieve the above object, the invention described in claim 1 is a seal remover comprising a shaft, a pointed tip on the shaft, and a blade continuing from the tip, the surface of the cross-sectional shape closest to the tip being on a plane approximately perpendicular to the shaft, the width of the part closest to the tip being from a very small value close to 0 to at least smaller than the diameter of the shaft, the width continuously increasing as the shaft is rotated, and at the same time, the cross-sectional shape of the blade changing from the tip side of the shaft in the opposite direction to the shaft.

[0009] When configured in this manner, a shaft is passed through the hole at the tip, and the reaction point of the force generated between the blade and the seal when the shaft is rotated is on the wall surface of the hole between the shaft and the object to be sealed.

[0010] Also, when the blade first enters, on a surface parallel to the seal surface, the blade is brought into contact with the portion of the seal gouged out by the edge of the opened hole, and the margin for cutting the seal is small.

[0011] Also, as the shaft is rotated, the blade enters the gap between the sticker and the item it is attached to, gradually widening the gap.

[0012] The invention described in claim 2 is the same as the invention described in claim 1, in that the cross-sectional shape of the blade describes a vibration path on the axis as the shaft is rotated.

[0013] With this configuration, for example, if there is one vibration, in the latter half of the blade insertion, the cross-sectional shape of the blade returns to the tip of the shaft, weakening the force that lifts the seal. In other words, it weakens the tension generated in the seal.

[0014] The invention described in claim 3 is such that, in the configuration of the invention described in claim 1, the blades are intermittently disassembled, and the position on the axis of the end face closest to the tip of the shaft of the blade closest to the tip of the shaft is closer to the tip of the shaft than the position on the axis of the end face furthest from the tip of the blade closest to the tip of the shaft.

[0015] With this configuration, when considering the entire blade, the total distance from the part closest to the tip to the part furthest from the tip can be made smaller than the simple displacement from the tip to the opposite side. Effect of the Invention

[0016] As explained above, the invention described in claim 1 does not lose force when the blade peels off the seal. Also, when the blade first enters, the force required to press the product of the present invention against the seal surface is small. Also, when the blade is fully inserted, the seal can be lifted over a wide area.

[0017] The invention described in claim 2 is more resistant to seal tearing than the invention described in claim 1.

[0018] The invention described in claim 3 is more resistant to seal tearing than the invention described in claim 1. [Brief description of the drawings]

[0019] [Figure 1] 1 is a perspective view of the external appearance of a seal remover according to a first embodiment of the present invention (Example 1). [Diagram 2] FIG. 2 is a cross-sectional view taken along line CC in FIG. [Diagram 3] FIG. 1 is a top view of the external appearance of a seal remover according to a first embodiment of the present invention (Example 1). [Figure 4] This is a cross-sectional view equivalent to that of FIG. 2, showing a cross-section of an object to which a seal is affixed. [Diagram 5] A cross-sectional view equivalent to Figure 4, showing how the blade cuts into the seal from the side. [Figure 6] A cross-sectional view equivalent to Figure 4, showing the blade cutting through the seal. [Figure 7] FIG. [Figure 8] FIG. 1 is a front view of a first embodiment of the present invention (Example 1). [Figure 9] FIG. 11 is a front view of a second embodiment of the present invention (Example 2). [Figure 10] 13 is a top view of the third embodiment of the present invention (Example 3). [Figure 11] FIG. 1 is a side view of a first embodiment of the present invention (Example 1). [Figure 12] FIG. 11 is a side view of a third embodiment of the present invention (Example 3). DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS EXAMPLES

[0020] As shown in FIG. 1, the seal remover (1) is composed of a shaft (11), a pointed tip (12) on the shaft (11), and a blade (13) connected to the tip (12), as described below.

[0021] As shown in the cross-sectional view of FIG. 2, the surface of the blade (13) closer to the tip (12) is arranged perpendicular to the shaft (11), and the width of the blade (13) at the part closest to the tip (12) is set to be at least smaller than the diameter of the shaft (11), ranging from a very small value close to 0. As shown in the top view of FIG. 3, the width of the blade (13) continuously increases as the shaft (11) is rotated. At this time, as the shaft (11) is similarly rotated, as shown in FIG. 2, the cross-sectional shape of the blade (13) is displaced on the axial line from the tip side of the shaft (11) toward the opposite direction of the shaft (11).

[0022] When using, the pointed tip (12) is inserted through the surface of the seal (3) of the object (2) to be sealed, and while pressing the part of the blade (13) closest to the tip (12) against the surface of the seal, the shaft (11) is rotated clockwise as viewed from above in Figure 3. The blade (13) cuts perpendicularly to the axis or cuts from above parallel to the axis into the part of the seal (3) gouged out by the insertion of the object (2) to be sealed through the tip (12), and as it is rotated further, the blade (13) appears to extend from the shaft (11) at the cut part, increasing the amount of cutting, and the part of the blade (13) that has already finished cutting enters between the backside of the seal (3) and the object (2) to be sealed.

[0023] When the blade (13) reaches its widest point, the cut is complete and the blade (13) is completely inserted between the back surface of the seal (3) and the object (2) to which the seal is affixed.

[0024] When the shaft (11) is further rotated, the blade (13) continues to peel off more of the adhesive of the seal (3), and when a certain area has been peeled off, the seal remover (1) is pulled in the opposite direction from the tip, and the area around the previously peeled area is also peeled off in a concentric manner. Finally, the seal remover (1) is pulled out together with the entire seal (3) from the object (2) to which the seal is affixed, completing the seal removal operation.

[0025] Next, we will explain how this sticker remover (1) is able to remove the sticker (3) without losing force when the object (2) to which the sticker is affixed is weak, compared to conventional ones.

[0026] When the shaft (11) is passed through the hole at the tip (12) and the shaft (11) is rotated as shown in Figure 4, the blade (13) cuts the seal (3) and, from the cut part, the blade (13) penetrates into the back of the page in Figure 4, peeling off the seal (3). As the blade (13) penetrates, a force P1 is generated in a direction perpendicular to the axis, and a reaction point of P1 is generated between the shaft (11) on the opposite side to the part where the blade (13) penetrates and the wall surface (21) of the object (2) to which the seal is affixed; this force is represented as Q1.

[0027] Q1 is a force that tries to crush the wall surface (21) of the hole, but this is not a problem in this direction because the item (2) to which the sticker is attached also has strength. Therefore, when a force is generated on the wall surface (21) of the hole to the right side in Fig. 4 by Q1, a similar force is generated on the item (2) to which the sticker is attached on the left side in Fig. 4 because the item (2) to which the sticker is attached is one piece, and this force is in the opposite direction to P1. Therefore, the force does not escape when the blade (13) peels off the sticker (3).

[0028] As shown in FIG. 7, in conventional devices, since there is no force applied to P1, it is necessary to support the object (2) to which the sticker is affixed in the opposite direction, but this is not necessary with this sticker remover (1).

[0029] Next, explain that although you will need to apply pressure from above when first cutting, the pressure only needs to be small.

[0030] When the blade (13) first cuts, it presses the blade (13) against the edge of the hole made by the sharp tip (12), that is, against the part of the seal (3) that has been gouged out. This is much easier to cut than just pressing the blade (13) against the flat surface of the seal (3).

[0031] Since the width of the blade (13) is extremely small, close to zero, it either cuts sideways at the edge of the hole made by the sharp tip (12) along the seal (3) where it has been gouged out, as shown in FIG. 5, or, as shown in FIG. 6, the blade (13) cuts from top to bottom as if it were cutting with the flat blade of a carving knife. In either case, since the amount of seal (3) to be cut is small, only a small amount of pressure is required to press down from above in FIGS. 5 and 6.

[0032] Also, once the blade (13) penetrates into the back surface of the seal (3), no pressure is required from above as long as the strength of the seal (3) allows.

[0033] For these two reasons, if the object (2) to which the sticker is affixed is weak, when using this sticker remover (1), it is sufficient to support the blade (13) from below only at the beginning when the blade (13) first enters. With conventional devices, as shown in Figure 7, it is necessary to support the object from two directions, from below and in the direction opposite to where the blade is pointing, which is an extremely difficult operation. EXAMPLES

[0034] Fig. 8 is a front view of the first embodiment, and Fig. 9 is a front view of the second embodiment. In the first embodiment, the blade (13) starts at the tip of the shaft (11) and continues to move from the tip to the opposite side, increasing in width along the circumference of the shaft (11).

[0035] In contrast, in the second embodiment, the blade (13) starts out the same, but is displaced from the opposite side to the tip of the shaft (11) midway toward the tip side.

[0036] This means that as the shaft (11) is rotated, the cross-sectional shape of the blade (13) describes a trajectory that vibrates on the axis, and in this example, the vibration occurs once.

[0037] In this second embodiment, the case where the vibration occurs multiple times is also included, in which case the blade (13) should appear to undulate.

[0038] Usage is the same as in the first embodiment, so a detailed description will be omitted.

[0039] The advantage of the second embodiment is that by reducing the overall axial displacement of the blade (13), the tension generated in the seal (3) when the blade (13) penetrates into the seal (3) is reduced, preventing the seal (3) from breaking due to exceeding its strength limit. EXAMPLES

[0040] Fig. 10 is a top view of the third embodiment. Fig. 11 is a side view of the first embodiment, and Fig. 12 is a side view of the third embodiment. In the third embodiment, the blade (13) is disassembled intermittently compared to the first embodiment. In this example, the blade (13) is divided into three. If these three blades are called blade (31), blade (32), and blade (33) in order from the tip of the shaft (11), the characteristics of each blade are the same as those of the first embodiment.

[0041] If blade (31), blade (32), and blade (33) are considered as a continuous series, the width of blade (13) gradually increases from the beginning of blade (31) to the end of blade (33), as shown in FIG.

[0042] As shown in FIG. 12, the positional relationship on the axis of the blades (31) and (32) is such that the starting point of the blade (32), i.e., the end face closer to the tip of the shaft (11), is closer to the tip of the shaft (11) than the ending point of the blade (31), i.e., the end face farther from the tip of the shaft (11).

[0043] The same applies to the positional relationship on the axial line between the blades (32) and (33).

[0044] Usage is the same as in the first embodiment, so a detailed description is omitted.

[0045] The advantage of the third embodiment is that by reducing the overall axial displacement of the blade (13), the tension generated in the seal (3) when the blade (13) penetrates into the seal (3) is reduced, thereby preventing the seal (3) from breaking due to exceeding its strength limit. [Explanation of symbols]

[0046] 1 Sticker remover 2. Items with stickers attached 3. Seal 11 Axis 12 Pointed tip 13 Blades 21 Hole Wall 31, 32, 33 Blades of the third embodiment

Claims

1. Axle and a pointed tip on the shaft; a surface of the cross-sectional shape adjacent to the tip portion that is on a plane substantially perpendicular to the axis; The width of the portion closest to the tip is from a minimum close to 0 to at least smaller than the diameter of the shaft, As the shaft is rotated, the width of the shaft increases continuously. At the same time, the cross-sectional shape of the shaft is displaced from the tip side of the shaft toward the opposite direction of the shaft. A seal remover equipped with a blade.

2. As the shaft is rotated, the cross-sectional shape of the blade describes a trajectory that oscillates on the axis line. The seal remover according to claim 1.

3. The blade is intermittently disassembled; From the position on the axis of the end face of the blade close to the tip side of the shaft, far from the tip side, The position of the end face of the blade closest to the tip of the shaft on the axis line is closer to the tip of the shaft, The seal remover according to claim 1.

4. Make a hole in the surface of the sticker on the item to which the sticker is attached, A shaft is passed through the hole, and the surface of the cross-sectional shape of the shaft that is closer to the tip side inserted into the hole is A blade attached to the shaft so as to be on a plane substantially perpendicular to the shaft, Rotate the shaft and insert it between the object to which the sticker is attached and the back of the sticker to lift the sticker, As the rotation increases, the width of the blade increases, increasing the area where the seal is lifted. When the area becomes large enough, the shaft is removed from the hole to remove the entire seal. How to remove the sticker.

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