Scissors to open the box

Abstract

To provide scissors for opening a box according to the present invention which have the advantage of being simple in construction, low in production cost, and convenient in operation.SOLUTION: The present invention discloses scissors for opening a box which comprise a first shearing blade and a second shearing blade which can be cut from each other. The first shearing blade has a first shearing handle connected to a tail end thereof, the second shearing blade has a second shearing handle connected to a tail end thereof, and the scissors further comprise a connecting screw and a movable hole, and the first shearing blade has the movable hole for the connecting screw to move. The connecting screw is connected to the second shearing blade through the movable hole so that the first shearing blade is pivotable relative to the second shearing blade about the connection screw. The first shearing blade is allowed to move back and forth with respect to the second shearing blade through movement of the connection screw in the movable hole.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to the technical field of scissors, and in particular to scissors for opening boxes. [Background technology]

[0002] Scissors are commonly used in people's daily lives and are primarily used to cut flat or wire-shaped materials such as cloth, paper, steel plates, ropes, and round steel. Scissors are a tool with two crossed blades that can be opened and closed.

[0003] When people use a package box to package items, they typically seal the box with transparent tape or packing tape. To open the box, they can use a knife or scissors to cut the transparent tape or packing tape. Current scissors can cut the transparent tape or packing tape at the closing point of the box, but they require two blades to be extended opposite each other and one of the blades must be used to cut. Compared to cutting with a knife, scissors are less convenient. Furthermore, because only one blade is used for cutting, with the other blade exposed, there is a certain degree of safety risk when using them. Improper handling can result in injury to the hand. Currently, there are scissors specifically designed for opening boxes, which include a first blade means and a second blade means, and the first blade means and the second blade means are connected by a pin so that they rotate opposite each other, allowing the first blade means and the second blade means to slide opposite each other, and a torsion spring is provided at the sliding point to prevent the first blade means and the second blade means from sliding opposite each other. However, not only is the attachment of the torsion spring inconvenient, but the pin at the rotating point of the scissors is also subject to a relatively large frictional force when sliding. Summary of the Invention [Problem to be solved by the invention]

[0004] To solve the above problem, it is necessary to provide scissors to open the box. [Means for solving the problem]

[0005] SUMMARY OF THE INVENTION An object of the present invention is to provide scissors for opening boxes that are simple in construction, low in production cost, and convenient to operate.

[0006] In order to achieve the above object, the present invention provides scissors for opening boxes, which include a first shearing blade and a second shearing blade that can cut each other, the first shearing blade having a first shearing handle connected to its tail end, the second shearing blade having a second shearing handle connected to its tail end, and further including a connecting screw and a movable hole, the first shearing blade having the movable hole through which the connecting screw moves, the connecting screw passing through the movable hole and connected to the second shearing blade so that the first shearing blade can pivot to the second shearing blade around the connecting screw, and the movement of the connecting screw within the movable hole allows the first shearing blade to move back and forth relative to the second shearing blade.

[0007] Preferably, the movable hole is provided in a main body of the first shear blade.

[0008] Preferably, the shearing blade further includes a spacer, the spacer being provided on the first shearing blade, and the movable hole being formed in the spacer.

[0009] Preferably, the movable hole includes a pivot hole and a sliding passage, the pivot hole is for the connecting screw to rotate, the sliding passage is for the connecting screw to slide, the pivot hole is connected to the sliding passage, and the sliding passage is arranged along the sliding direction of the first shearing blade.

[0010] Specifically, the pivot hole is an arc-shaped hole, and the center of the pivot hole is located outside the axis of symmetry in the sliding direction of the sliding passage so as to form a position limiting portion that protrudes outward at the point connecting the pivot hole and the sliding passage.

[0011] Specifically, the diameter of the pivot hole is larger than the width of the sliding passage.

[0012] Preferably, the spacer extends toward the connecting screw to form a ridge, and the connecting screw is slidably mounted on the ridge.

[0013] Specifically, the first shear blade has a mounting hole, the spacer is mounted in the mounting hole, the spacer includes an inner cylindrical portion and an outer receiving portion that are connected to each other, the inner cylindrical portion is arranged around the inside of the mounting hole and has the movable hole, the outer receiving portion is attached to the outer wall of the first shear blade, the connecting screw includes a connecting post and a cap, the lower end is connected to the second shear blade and the upper end is connected to the cap, the connecting post moves to the inner cylindrical portion, and the bottom end surface of the cap is attached to the outer receiving portion.

[0014] Specifically, the spacer further includes a traction portion extending outward from the outer receiving portion, and the spacer is removed from the mounting hole of the first shearing blade by pulling the traction portion.

[0015] Preferably, the second shear blade has an inclined cutting surface on its outer surface.

[0016] Preferably, the second shear blade has an inner straight blade portion and an outer blunt blade portion, the inner straight blade portion and the outer blunt blade portion are connected to each other, the inner straight blade portion is located inside the outer blunt blade portion, and is arranged along the sliding direction of the first shear blade.

[0017] Preferably, the scissors for opening the box further include a locking means, and when the first shearing blade and the second shearing blade are in a closed state, the first shearing blade has a return position and an extended position by moving relative to the second shearing blade, and when the first shearing blade is in the return position, the edge of the second shearing blade extends beyond the edge of the first shearing blade, and when the first shearing blade is in the extended position, the edge of the second shearing blade is aligned with the edge of the first shearing blade, and when the first shearing blade is in the return position, the locking means is capable of locking the first shearing blade and the second shearing blade in a closed state.

[0018] Specifically, the locking means includes a groove and an engaging portion, the groove is provided on the first shear handle, the engaging portion is formed by the second shear handle extending to the first shear handle, and the groove is provided with an engaging portion, and when the first shear blade is located in the return position, the engaging portion extends to the locking groove and engages with the engaging portion to lock it. [Effects of the Invention]

[0019] Compared with the prior art, the scissors for opening boxes according to the present invention have a movable hole in the first shearing blade through which a connecting screw moves, allowing the connecting screw to pass through the movable hole and connect to the second shearing blade. The first shearing blade pivots to the second shearing blade around the connecting screw, allowing the first and second shearing blades to close or open oppositely, thereby achieving the purpose of shearing with scissors. When the first and second shearing blades are closed, the movement of the connecting screw within the movable hole allows the first shearing blade to move back and forth relative to the second shearing blade, and the first shearing blade has a return position and an extended position by moving relative to the second shearing blade. When the first shearing blade is in the return position, the edge of the second shearing blade exceeds the edge of the first shearing blade, allowing the first shearing blade and the second shearing blade to move oppositely and shift. When the first shearing blade is returned to its original position, the blade of the second shearing blade is exposed, allowing it to cut transparent tape or packaging tape and open a box. The scissors are simple in structure, easy to operate, and highly safe. When the first shearing blade is in its extended position, the blade of the second shearing blade is aligned with the blade of the first shearing blade, allowing the first shearing blade to be reset to its restored position. The spacer reduces friction caused by movement of the connecting screw relative to the first shearing blade, thereby achieving the purpose of protecting the first shearing blade. Furthermore, because a certain pushing force is required to move the connecting screw into the movable hole of the spacer, damage caused by accidental movement of the first or second shearing blade during use can be avoided, resulting in high safety and a simple structure. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is a schematic diagram of a three-dimensional configuration of scissors for opening boxes according to the present invention; FIG. [Figure 2] 1 is a schematic diagram of a configuration of scissors for opening boxes according to the present invention when the first shearing blade and the second shearing blade are relatively closed and the first shearing blade is in an extended position relative to the second shearing blade. FIG. [Figure 3] FIG. 3 is an enlarged view of a portion A in FIG. 2. [Figure 4] 1 is a schematic diagram of a configuration of scissors for opening boxes according to the present invention when the first shearing blade and the second shearing blade are relatively closed and the first shearing blade is in a return position relative to the second shearing blade. FIG. [Figure 5] FIG. 5 is an enlarged view of a portion B in FIG. [Figure 6] 10 is a schematic diagram of a three-dimensional configuration of scissors for opening boxes according to the present invention, viewed from another angle. FIG. [Figure 7] 1 is a schematic diagram of the configuration of connecting screws and spacers in scissors for opening boxes according to the present invention; FIG. [Figure 8] FIG. 8 is an enlarged view of a portion C in FIG. 7. [Figure 9] 8 is a schematic diagram of the configuration in which the connecting screws and spacers in FIG. 7 are cut in the vertical direction. [Figure 10] 1 is a schematic diagram of the configuration of a first shear blade and a spacer in scissors for opening boxes according to the present invention; FIG. [Figure 11] 10 is a schematic diagram of a part of the configuration of another embodiment of scissors for opening boxes according to the present invention. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0021] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to describe in detail the technical contents, structural features, and effects to be achieved of the present invention, the following description will be given based on embodiments with reference to the drawings.

[0022] 1 to 5, a pair of scissors 100 for opening boxes provided by the present invention includes a connecting screw 5, a spacer 6, a first shearing blade 1, and a second shearing blade 2. The first shearing blade 1 has a first shearing handle 3 connected to its rear end, and the second shearing blade 2 has a second shearing handle 4 connected to its rear end. The first shearing blade 1 and the second shearing blade 2 cut each other to achieve a clamping action. The spacer 6 is provided on the first shearing blade 1 and has a movable hole 61 through which the connecting screw 5 moves. The connecting screw 5 passes through the movable hole 61 and is fixedly connected to the second shearing blade 2 so that the first shearing blade 1 pivots around the connecting screw 5 to the second shearing blade 2. The first shearing blade 1 and the second shearing blade 2 open and close relative to each other, thereby achieving the purpose of clamping with scissors. When the first shearing blade 1 and the second shearing blade 2 are closed, the movement of the connecting screw 5 in the movable hole 61 allows the first shearing blade 1 to move back and forth relative to the second shearing blade 2. The first shearing blade 1 has a return position and an extended position, depending on its movement relative to the second shearing blade 2. When the first shearing blade 1 is in the return position, the edge of the second shearing blade 2 extends beyond the edge of the first shearing blade 1 (as shown in Figure 4), allowing the first shearing blade 1 and the second shearing blade 2 to move relative to each other and be misaligned. When the first shearing blade 1 and the second shearing blade 2 are in the return position, the edge of the second shearing blade 2 is exposed and can be used to cut transparent tape or packaging tape to open a box. This device has a simple configuration, is easy to operate, and is highly safe. When the first shearing blade 1 is in the extended position, the edge of the second shearing blade 2 is aligned with the edge of the first shearing blade 1 (more specifically, as shown in Figures 1 and 2). At this time, the first shearing blade 1 and the second shearing blade 2 can pivot relative to each other to achieve clamping. The first shearing blade 1 and the second shearing blade 2 can be reset to their return positions. The spacer 6 can reduce friction caused by the movement of the connecting screw 5 relative to the first shearing blade 1, thereby achieving the purpose of protecting the first shearing blade 1.Furthermore, since a certain pushing force is required to move the connecting screw 5 into the movable hole 61 of the spacer 6, it is possible to prevent the first shearing blade 1 or the second shearing blade 2 from accidentally moving and causing damage during use, thereby improving safety and simplifying the structure. The simplified structure of the spacer 6 makes assembly, replacement, and maintenance easy, and also effectively reduces costs. It is understandable that in other embodiments, the movable hole 61 may be directly installed in the main body of the first shearing blade 1, that is, the spacer 6 may be omitted, as shown in FIG. 11.

[0023] 1 to 5 and 7 to 10, the movable hole 61 includes a pivot hole 611 and a sliding passage 612. The pivot hole 611 rotates the connecting screw 5, allowing the first shearing blade 1 to pivot relative to the second shearing blade 2 to achieve clamping. The sliding passage 612 slides the connecting screw 5, allowing the first shearing blade 1 to move back and forth relative to the second shearing blade 2, allowing the first shearing blade 1 to switch between a return position and an extended position relative to the second shearing blade 2. The pivot hole 611 communicates with the sliding passage 612, which is disposed along the sliding direction of the first shearing blade 1, thereby enabling the first shearing blade 1 to move more smoothly relative to the second shearing blade 2. Preferably, the pivot hole 611 is an arc-shaped hole, and the center a is located outside the axis of symmetry L of the sliding direction of the sliding passage 612. In other words, because the center of the circle is located on one side of the symmetry axis and the pivot hole 611 is shifted to one side of the second shearing blade 2, a position limiting portion 613 that protrudes outward is formed at the connection between the pivot hole 611 and the sliding passage 612. Using the position limiting portion 613, the connecting screw 5 is engaged with the pivot hole 611, and a certain force is required for the connecting screw 5 to switch between the pivot hole 611 and the sliding passage 612. This further prevents the first shearing blade 1 and the second shearing blade 2 from accidentally sliding, thereby improving safety. Preferably, the diameter of the pivot hole 611 is larger than the width of the sliding passage 612, allowing the scissors to pivot more smoothly. Simply applying force to push the scissors starts the sliding, improving safety. The spacer 6 extends to the connecting screw 5 to form a protruding ridge 6a. The connecting screw 5 is slidably mounted on the ridges 6a, which are arranged along the sliding direction of the first shearing blade 1. The ridges 6a are symmetrically arranged on both sides of the movable hole 61. By providing the ridges 6a, the contact area between the connecting screw 5 and the spacer 6 can be reduced, thereby reducing the effect of friction.

[0024] 1 to 5, a mounting hole (not shown) is provided in the first shearing blade 1, and a spacer 6 is attached to the mounting hole. The spacer 6 includes a traction portion (not shown), an inner cylindrical portion 62, and an outer support portion 63, which are connected to each other. The inner cylindrical portion 62 is circumferentially disposed within the mounting hole and has a movable hole 61. The outer support portion 63 is attached to the outer wall of the first shearing blade 1. The connecting screw 5 includes a connecting post (not shown) and a cap (not shown). The connecting post has a lower end connected to the second shearing blade 2 and an upper end connected to the cap and moves to the inner cylindrical portion 62. The cap has its bottom end attached to the outer support portion 63, which improves the smoothness of movement of the connecting screw 5. The traction portion is formed by extending outward from the outer support portion 63, and the spacer 6 is removed from the mounting hole of the first shearing blade 1 by pulling the traction portion. This makes the components more compact and improves convenience during use. Preferably, the first shearing blade 1 has a "V" shape, and the second shearing blade 2 has an inner straight cutting portion 21 and an outer blunt cutting portion 22. The inner straight cutting portion 21 is connected to the outer blunt cutting portion 22. The inner straight cutting portion 21 is located inside the outer blunt cutting portion 22 and is arranged toward the first shearing blade 1 in the sliding direction of the first shearing blade 1. The first shearing blade 1 is configured as a sharp cutting edge to make clipping easier, and the second shearing blade 2 is configured as a blunt cutting edge to reduce the risk of injury to the user when opening the box.

[0025] 1 to 6, the scissors 100 for opening boxes provided by the present invention further include a locking means 7. When the first shearing blade 1 is in the return position, the locking means 7 locks the first shearing blade 1 and the second shearing blade 2, and the scissors 100 are in a closed state. This prevents the first shearing blade 1 and the second shearing blade 2 from opening, which could injure a hand. The locking means 7 includes a groove 71 and an engaging portion 73. The groove 71 is provided in the first shearing handle 3, and the engaging portion 73 is formed by the second shearing handle 4 extending toward the first shearing handle 3. The groove 71 is provided with a fitting portion 72. When the first shearing blade 1 is in the return position, the engaging portion 73 extends into the groove 71 and locks into engagement with the fitting portion 72. When the first shearing blade 1 is in the extended position, the first shearing blade 1 and the second shearing blade 2 are aligned and rotate relative to each other, switching to a clamping state. The outer surface of the second shearing blade 2 is an oblique cutting surface 23. By providing this cutting surface 23, it is useful for the operation of piercing the box with the scissors 100 to cut it, and it also serves as a guide.

[0026] Therefore, the operation of the scissors 100 for opening boxes according to the present invention will be described in more detail with reference to FIGS.

[0027] When the first shearing blade 1 is in the extended position relative to the second shearing blade 2, the blade of the second shearing blade 2 is aligned with the blade of the first shearing blade 1, and the connecting screw 5 engages with the pivot hole 611. At this time, the first shearing blade 1 pivots relative to the second shearing blade 2, and the first shearing blade 1 opens and closes relative to the second shearing blade 2, thereby achieving the purpose of pinching with scissors. When the first shearing blade 1 and the second shearing blade 2 are closed, the movement of the connecting screw 5 in the sliding passage 612 of the movable hole 61 allows the first shearing blade 1 to move back and forth relative to the second shearing blade 2. When the first shearing blade 1 is in the return position, the blade of the second shearing blade 2 extends beyond the blade of the first shearing blade 1, allowing the first shearing blade 1 and the second shearing blade 2 to move and be misaligned relative to each other. When the first shearing blade 1 and the second shearing blade 2 are in their return positions, the edge of the second shearing blade 2 is exposed and can be used to cut transparent tape or packaging tape, thereby realizing the opening of a box. After the box has been opened, the first shearing blade 1 and the second shearing blade 2 can be moved relative to each other and reset to their extended positions.

[0028] By installing a spacer 6 on the first shearing blade 1, the spacer 6 is provided on the first shearing blade 1 and has a movable hole 61 through which the connecting screw 5 moves. The connecting screw 5 passes through the movable hole 61 and is connected to the second shearing blade 2. The first shearing blade 1 then pivots to the second shearing blade 2 around the connecting screw 5, allowing the first shearing blade 1 and the second shearing blade 2 to open and close relative to each other, thereby achieving the purpose of scissors clamping. When the first shearing blade 1 and the second shearing blade 2 are closed, the movement of the connecting screw 5 within the movable hole 61 allows the first shearing blade 1 to move back and forth relative to the second shearing blade 2. The first shearing blade 1 has a return position and an extended position by moving relative to the second shearing blade 2. When the first shearing blade 1 is in the return position, the edge of the second shearing blade 2 extends beyond the edge of the first shearing blade 1, allowing the first shearing blade 1 and the second shearing blade 2 to move and shift relative to each other. When the first shearing blade 1 and the second shearing blade 2 are fully closed, the blade of the second shearing blade 2 is exposed, allowing the blade of the second shearing blade 2 to cut transparent tape or packaging tape and open a box. This simple configuration, convenient operation, and high safety are achieved. When the first shearing blade 1 is in the extended position, the blade of the second shearing blade 2 aligns with the blade of the first shearing blade 1, allowing the first shearing blade 1 and the second shearing blade 2 to be reset to their return positions. The spacer 6 reduces friction caused by the connecting screw 5 moving directly relative to the first shearing blade 1, thereby achieving the purpose of protecting the first shearing blade 1. Furthermore, because a certain pushing force is required to move the connecting screw 5 into the movable hole 61 of the spacer 6, damage caused by accidental movement of the first shearing blade 1 or the second shearing blade 2 during use can be prevented, resulting in high safety and a simple configuration.

[0029] It goes without saying that the above disclosure is merely a preferred embodiment of the present invention and does not limit the scope of the present invention, and other equivalent modifications based on the scope of the utility model registration claims are still included in the scope of the present invention.

Claims

1. A pair of scissors for opening boxes, comprising a first shearing blade and a second shearing blade that can cooperate with each other to cut an object, the first shearing blade having a first shearing handle connected to a tail end thereof, and the second shearing blade having a second shearing handle connected to a tail end thereof; a connecting screw and a movable hole, the first shear blade having the movable hole for movement of the connecting screw, the connecting screw passing through the movable hole and connected to the second shear blade such that the first shear blade is pivotable to the second shear blade about the connecting screw, and allowing the first shear blade to move back and forth relative to the second shear blade via movement of the connecting screw within the movable hole; the movable hole includes a pivot hole and a sliding passage, the pivot hole is for the connecting screw to rotate, the sliding passage is for the connecting screw to slide, the pivot hole is in communication with the sliding passage, the sliding passage is arranged along the sliding direction of the first shearing blade, and the pivot hole has a center located outside the axis of symmetry of the sliding passage in the sliding direction so as to form a position limiting part that protrudes outward at a point connecting the pivot hole and the sliding passage.

2. The scissors for opening boxes according to claim 1, wherein the movable hole is directly provided on the first shear blade.

3. 2. The scissors for opening boxes according to claim 1, further comprising a spacer, the spacer being provided on the first shear blade, and the movable hole being formed in the spacer.

4. 2. The scissors for opening boxes according to claim 1, wherein the diameter of said pivot hole is greater than the width of said sliding passage.

5. 4. The scissors for opening boxes according to claim 3, wherein the spacer extends toward the connecting screw to form a ridge, and the connecting screw is slidably mounted on the ridge.

6. The first shear blade has a mounting hole, and the spacer is mounted in the mounting hole; the spacer includes an inner cylindrical portion and an outer receiving portion that are connected to each other, the inner cylindrical portion being disposed around the mounting hole and having the movable hole formed therein, and the outer receiving portion being bonded to an outer wall of the first shearing blade; 4. The scissors for opening boxes according to claim 3, wherein the connecting screw includes a connecting post and a cap, a lower end of which is connected to the second shear blade and an upper end of which is connected to the cap, the connecting post moving to the inner tube portion, and the cap having a bottom end surface attached to the outer receiving portion.

7. 7. The scissors for opening boxes according to claim 6, wherein the spacer further includes a traction portion extending outward from the outer receiving portion, and the spacer is removed from the mounting hole of the first shearing blade by pulling the traction portion.

8. 2. The box-opening scissors of claim 1, wherein the second shear blade has an inclined cutting surface on its outer surface.

9. 2. The scissors for opening boxes according to claim 1, wherein the second shearing blade comprises an inner straight cutting portion and an outer blunt cutting portion, the inner straight cutting portion and the outer blunt cutting portion are connected to each other, the inner straight cutting portion is located inside the outer blunt cutting portion and is arranged along the sliding direction of the first shearing blade.

10. 2. The scissors for opening a box according to claim 1, further comprising a locking means, wherein when the first shearing blade and the second shearing blade are in a closed state, the first shearing blade has a return position and an extended position by moving relative to the second shearing blade, wherein when the first shearing blade is in the return position, the edge of the second shearing blade extends beyond the edge of the first shearing blade, and when the first shearing blade is in the extended position, the edge of the second shearing blade is aligned with the edge of the first shearing blade, and wherein the locking means is capable of locking the closed state of the first shearing blade and the second shearing blade when the first shearing blade is in the return position.

11. 11. The box-opening scissors according to claim 10, wherein the locking means includes a groove and an engaging portion, the groove being provided on the first shearing handle, the engaging portion being formed by the second shearing handle extending to the first shearing handle, and the groove being provided with a fitting portion, and when the first shearing blade is in the return position, the engaging portion extends to the locking groove and engages with the fitting portion to lock it.

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