Electric scissors

Abstract

The utility model provides electric scissors. The electric scissors comprise a machine body; the movable blade is movably connected to the machine body; the knife rest comprises a support and a fixed blade, the support is fixed to the machine body and comprises a body and a first guide part connected to one end of the body, the fixed blade is fixed to the body, and the side face of the first guide part inclines relative to the fixed blade; the side face extends from the top face of the first guide part to the bottom face of the first guide part and is gradually away from the first side face of the fixed blade and the second side face opposite to the first side face. The two parts formed after a complete material is cut off can be guided by the side face of the first guide part to move in the direction away from the first side face and the second side face of the fixed blade respectively, and therefore the situation that the cut-off material is accumulated on the two sides of the fixed blade, and consequently normal work of the electric scissors is possibly affected is prevented.

Description

electric scissors Technical Field

[0001] This utility model relates to power tools, specifically to an electric scissors. Background Technology

[0002] Electric shears are a common type of power tool. Typically, electric shears consist of a fixed blade and a movable blade, forming a cutting edge between them. The movable blade moves under the drive of a motor, causing the cutting edge to open and close continuously. While conventional electric shears meet basic requirements, it is useful and necessary to provide a well-guided structure that directs the material being cut to both sides of the blade. Summary of the Invention

[0003] Therefore, this utility model provides an electric scissor with a good guiding structure.

[0004] To solve the above-mentioned technical problems, the present invention provides an electric scissor, comprising: a body; a movable blade movably connected to the body; and a blade holder, the blade holder comprising a support and a fixed blade, the support being fixed to the body, the support comprising a main body and a first guide portion connected to one end of the main body, the fixed blade being fixed to the main body, the side of the first guide portion being inclined relative to the fixed blade, the side extending from the top surface of the first guide portion to the bottom surface of the first guide portion and gradually moving away from the first side of the fixed blade and the second side opposite to the first side.

[0005] Optionally, the top surface of the first guide portion is an inclined surface that intersects with the side surface of the first guide portion and gradually extends from the side surface toward the cutting edge of the fixed blade.

[0006] Optionally, the first guide portion may further include a convex surface that is opposite to the side surface of the first guide portion and intersects with the top surface of the first guide portion.

[0007] Optionally, it also includes a second guide portion, which is fixed to the body of the support, and the fixed blade is indirectly fixed to the body of the support through the second guide portion. The top end of the second guide portion includes a guide surface that is flush with the top surface of the first guide portion.

[0008] Optionally, the support body is provided with a positioning groove, and the bottom end of the second guide portion is received in the positioning groove.

[0009] Optionally, the positioning groove extends from the top surface of the body of the support to the bottom surface of the body.

[0010] Optionally, the positioning groove includes a first side and a second side opposite to each other, and the body of the support also includes a support block protruding from the first side and extending to the second side, and a protrusion protruding from the first side. The bottom end of the second guide portion is supported by the support block, and one side of the second guide portion abuts against the protrusion.

[0011] Optionally, the first guide portion is provided with an opening groove facing the second guide portion, the opening groove intersecting with the top surface of the first guide portion, and the second guide portion is partially received in the opening groove to achieve the connection between the top surface of the first guide portion and the guide surface of the second guide portion.

[0012] Optionally, the machine body includes a main body section and a handle section connected to the main body section. The moving blade and the support of the tool holder are both connected to the main body section. The main body section and the handle section extend in directions that intersect each other.

[0013] Optionally, the body is provided with a light-emitting element inside, and the body includes a light-transmitting part that allows light emitted by the light-emitting element to pass through.

[0014] The present invention has the following advantages: Since the side extends from the top surface of the first guide portion to the bottom surface of the first guide portion and gradually moves away from the first side of the fixed blade and the second side opposite to the first side, the two parts formed after a complete piece of material is cut will be guided by the side of the first guide portion and move away from the first side and the second side of the fixed blade, respectively, thereby preventing the cut material from accumulating on both sides of the fixed blade and potentially affecting the normal operation of the electric shears. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 is a perspective view of the electric scissors according to an embodiment of the present invention.

[0017] Figure 2 is a side view of an electric scissors according to an embodiment of the present invention, wherein one element is omitted.

[0018] Figure 3 is a perspective view of the electric scissors according to an embodiment of the present invention from another angle, wherein some components are omitted.

[0019] Figure 4 is a perspective view of the electric scissors according to an embodiment of the present invention from another angle, wherein some components are omitted.

[0020] Figure 5 is a perspective view of the blade holder of the electric scissors according to an embodiment of the present invention.

[0021] Figure 6 is a side view of the blade holder of the electric scissors according to an embodiment of the present invention.

[0022] Figure 7 is a top view of the blade holder of the electric scissors according to an embodiment of the present invention.

[0023] Figure 8 is a perspective view of the blade holder of the electric scissors according to an embodiment of the present invention from another angle.

[0024] Figure 9 is a perspective view of the blade holder of the electric scissors according to an embodiment of the present invention from another angle, wherein some components are omitted. Detailed Implementation

[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0027] Referring to Figures 1-4, in one embodiment, an electric shears 100 includes a body 10, a movable blade 20, and a blade holder 30. The movable blade 20 is movably connected to the body 10. The blade holder 30 includes a support 40 and a fixed blade 50. The support 40 is fixed to the body 10, and the fixed blade 50 is fixed to the support 40. In this embodiment, the movable blade 20 is a regular polygon (e.g., a regular decagon), with each side of the polygon forming a cutting edge. The movable blade 20 is rotatably connected to the body 10. In any state, one cutting edge of the movable blade 20 is always offset from the cutting edge of the fixed blade 50. During the rotation of the movable blade 20, this cutting edge gradually moves closer to the cutting edge of the fixed blade 50. During this process, an offset shearing force is generated between the cutting edges of the movable blade 20 and the fixed blade 50, which can cut the material. It is understood that the construction of the moving blade 20 is not limited to the aforementioned situation. In other embodiments, it can adopt other types of construction. For example, the moving blade 20 can have only one cutting edge. The moving blade 20 oscillates back and forth under the forward and reverse drive of the motor, thereby realizing that the cutting edge of the moving blade 20 repeatedly approaches / moves away from the cutting edge of the fixed blade 50.

[0028] In one embodiment, the body 10 includes a first half-shell 101 and a second half-shell 102, which have a generally symmetrical structure. The first half-shell 101 and the second half-shell 102 are connected to each other to form the body 10. The body 10 includes a main body segment 11, a handle segment 12, and a head 13 connected to each other. The main body segment 11 and the handle segment 12 are generally cylindrical and extend along intersecting directions, with an obtuse angle between them. In one embodiment, a decorative shell 103 covers the outer surface of the handle segment 12, which improves the aesthetics of the electric scissors 100.

[0029] In one embodiment, the electric scissors 100 further includes a drive assembly 60 for driving the moving blade 20 and a battery 70. The drive assembly 60 is disposed inside the main body section 11, and the battery 70 is disposed inside the handle section 12. The battery 70 is used to provide the necessary electrical energy to the electronic components of the electric scissors 100.

[0030] In one embodiment, the handle section 12 and the head 13 are located at opposite ends of the main body section 11. The head 13 extends generally in a direction perpendicular to the main body section 11. The moving blade 20 and the support 40 of the tool holder 30 are both connected to one end of the head 13 in its length direction.

[0031] In one embodiment, the body 10 further includes a rotating shaft 14 disposed within the head 13, rotatably connected to the head 13 and driven by the drive assembly 60, one end of the rotating shaft 14 being exposed outside the head 13, and the moving blade 20 being fixed to that end of the rotating shaft 14.

[0032] In one embodiment, the drive assembly 60 includes a rotary motor 61 and a transmission device 62 connected to the motor shaft of the rotary motor 61. A first gear 63 is mounted on the output shaft of the transmission device 62, and a second gear 64 is mounted on the rotary shaft 14. The first gear 63 and the second gear 64 mesh with each other. In this embodiment, since the rotary shaft 14 is arranged along the length of the head 13, and the rotation axis of the rotary shaft 14 is approximately perpendicular to the rotation axis of the first gear 63, both the first gear 63 and the second gear 64 are bevel gears. With this configuration, the rotational motion output by the rotary motor 61 can be transmitted to the rotary shaft 14, thereby driving the moving blade 20 to rotate synchronously with the rotary shaft 14.

[0033] In one embodiment, the electric shears 100 further includes a display module 80 disposed on the side of the body 10 opposite to the fixed blade 50. This arrangement allows the user to easily observe various information displayed on the display module 80 (e.g., battery level, blade rotation direction, current gear position, etc.) when cutting materials with the electric shears 100. In one embodiment, the display module 80 includes a display screen (e.g., an LCD or LED display). In another embodiment, the display module 80 includes one or more indicator lights, allowing the user to determine the battery level range based on the indicator light's color. In the case of multiple indicator lights, they can be arranged in a circle, and sequential flashing can provide a clockwise or counterclockwise rotation effect, thereby indicating different rotation directions of the moving blade.

[0034] From the perspective of Figure 2, the fixed blade 50 is located on the bottom side of the body 10, while the display module 80 is located on the top side of the body 10. In one embodiment, the display screen of the display module 80 is approximately parallel to the bottom surface 401 of the support 40. Thus, in a working scenario, the user places material (e.g., cardboard) on a supporting surface (e.g., a tabletop), and then brings the bottom surface 401 of the support 40 of the electric shears 100 into contact with the supporting surface. The user then activates the electric shears 100 and pushes them to slide the support 40 relative to the supporting surface, thereby quickly cutting the material. Because the display screen of the display module 80 is approximately parallel to the bottom surface 401 of the support 40, the user can easily observe the various information displayed by the display module 80 during the above-described working process.

[0035] In one embodiment, the display module 80 is positioned on the handle section 12 near the main body section 11, specifically at the end of the handle section 12 facing the main body section 11. With this arrangement, when the user holds the handle section 12 (more precisely, the decorative shell 103), the user's gaze can naturally fall on the display screen of the display module 80.

[0036] In one embodiment, the electric scissors 100 further includes a trigger switch 15 and a button 16 for controlling the rotation motor 61 of the drive assembly 60. The trigger switch 15 is disposed inside the body 10. The first end 161 of the button 16 is movably connected to the body 10, for example, the first end 161 can be rotatably connected to the body 10. The second end 162 of the button 16 is opposite to the contact 151 of the trigger switch 15. When the second end 162 of the button 16 is pressed by the user, the button 16 rotates relative to the body 10, and the second end 162 of the button 16 moves into the body 10, thereby pushing the contact 15 and triggering the trigger switch 15. After the trigger switch 15 is triggered, the rotation motor 61 of the drive assembly 60 is started / stopped. It can be understood that in other embodiments, the button 16 may also be slidably connected to the body 10, and its entirety can move relative to the body 10, instead of only the second end 162 being able to move relative to the body, while the first end 161 can only rotate in place.

[0037] In one embodiment, at least a portion of the projection of the button 16 onto the plane of the display screen of the display module 80 lies outside the display screen. From the perspective shown in FIG2, the display module 80 is located on the top side of the handle section 12, while the button 16 is located on the bottom side of the handle section 12. From the perspective shown in FIG2, one end of the button 16 is approximately aligned with one end of the display module 80, and the length of the button 16 is significantly greater than the length of the display module 80. This ensures that at least a portion of the projection of the button 16 onto the plane of the display screen of the display module 80 lies outside the display screen. This construction ensures that when the user holds the handle section 12 (more precisely, the decorative shell 103), the user's fingers can easily reach the button 16, and the user's palm will not interfere with the display module 80, thus preventing the user from being affected while operating the button 16 and observing the display module 80.

[0038] In one embodiment, to prevent the electric scissors 100 from being activated due to user error, the electric scissors 100 also includes a locking button 17. The locking button 17 includes a base 171 and a stop block 172 connected to the base. The base 171 is slidably connected to the body 10. A protrusion 161 protrudes from the inner surface of the button 16, and the protrusion 161 abuts against the stop block 172, preventing the button 16 from rotating. Therefore, under normal conditions, due to the interaction between the protrusion 161 and the stop block 172, the button 16 cannot rotate relative to the body 10 even when pressed by the user. When needed, the user needs to press the locking button 17. The base 171 moves relative to the body 10, causing the stop block 172 to move. When the stop block 172 moves to a position where it disengages from the protrusion 161, the user can press the button 16 to trigger the trigger switch 15.

[0039] In one embodiment, the locking button 17 further includes a push rod 173 connected to the base 171. The housing 10 has an internal receiving cylinder 104 and an elastic element (not shown) disposed within the receiving cylinder 104. The end of the push rod 173 is received within the receiving cylinder 104 and compresses the elastic element. With this configuration, the elastic element applies a pushing force to the push rod 173, causing the locking button 17 to remain in the state shown in FIG. 4 under normal conditions, i.e., the state where the protrusion 161 abuts against the stop block 172. After the locking button 17 is pushed by the user, causing the stop block 172 to disengage from the protrusion 161, the elastic element is further compressed. After the user releases the locking button 17, the restoring force of the elastic element pushes the push rod 173, which ultimately causes the locking button 17 to return to the state shown in FIG. 4, i.e., the state where the protrusion 161 abuts against the stop block 172.

[0040] In one embodiment, a light-emitting element 90 (e.g., an LED light) is disposed inside the body 10, and the body 10 includes a light-transmitting portion 105 that allows light emitted by the light-emitting element 90 to pass through. In this embodiment, the light-transmitting portion 105 is disposed at the head 13 of the body 10 near the support 40. With this configuration, the light-emitting element 90 can provide additional illumination for the user in low-light conditions. Specifically, the light-transmitting portion 105, disposed at the head 13 of the body 10 near the support 40, allows the light-transmitting portion 105 to guide the light emitted by the light-emitting element 90 to the front of the blade holder 30, which helps the user to see the material being sheared in front of the blade holder 30 in low-light conditions.

[0041] Referring to Figures 5-9, in one embodiment, the support 40 includes a body 41 and a first guide portion 42 connected to one end of the body 41. The fixed blade 50 is fixed to the top surface 411 of the body 41. The side surface 421 of the first guide portion 42 is inclined relative to the fixed blade 50. The side surface 421 extends from the top surface 422 of the first guide portion 42 to the bottom surface 423 of the first guide portion 42 and gradually moves away from the first side surface 51 of the fixed blade 50 and the second side surface 52 opposite to the first side surface 51. In one embodiment, the fixed blade 50 is fixed to the top surface 411 of the body 41. It is understood that the position of the fixed blade 50 is not limited to this. As long as the cutting edge of the fixed blade 50 and the cutting edge of the moving blade 20 are opposite and staggered, the fixed blade 50 can be selected in other suitable positions as needed.

[0042] With the above-described structure, the side surface 421 of the first guide portion 42 can guide the material. For example, during use, the user can place the material (e.g., cardboard) on a supporting surface (e.g., a tabletop), and then bring the bottom surface 401 of the support 40 of the electric scissors 100 into contact with the supporting surface. Afterward, the user can push the material toward the electric scissors 100. Because the side surface 421 of the first guide portion 42 is inclined, the material will continue to slide along the side surface 421 after contacting it until it is moved between the moving blade 20 and the fixed blade 50. The material then begins to be cut by the electric scissors 100. Since the side surface 421 extends from the top surface 422 of the first guide portion 42 to the bottom surface 423 of the first guide portion 42 and gradually moves away from the first side surface 51 of the fixed blade 50 and the second side surface 52 opposite to the first side surface 51, the two parts formed after a complete piece of material is cut will be guided by the side surface 421 of the first guide portion 42 and move away from the first side surface 51 and the second side surface 52 of the fixed blade 50, respectively, thereby preventing the cut material from accumulating on both sides of the fixed blade 50 and potentially affecting the normal operation of the electric shears 100.

[0043] In one embodiment, the bottom surface 423 of the first guide portion 42 and the bottom surface 412 of the body 41 together form the bottom surface 401 of the support 40. The bottom surfaces 423 and 412 are flush with each other, making the bottom surface 401 a complete plane. The side surface 421 is inclined relative to the bottom surface 423, and the included angle between the two is an acute angle.

[0044] The side surface 421 of the first guide portion 42 is a smooth curved surface, which intersects with any plane parallel to the bottom surface 423 to form an arc or nearly an arc. In one embodiment, the side surface 421 of the first guide portion 42 can be divided into two parts: a first side surface 424 and a second side surface 425. The first side surface 424 is close to the first side surface 51 of the fixed blade 50, and the second side surface 425 is close to the second side surface 52 of the fixed blade 50. Here, "close" refers to the comparison between the first side surface 424 and the second side surface 425. That is, compared with the second side surface 425, the first side surface 424 is closer to the first side surface 51 of the fixed blade 50; compared with the first side surface 424, the second side surface 425 is closer to the second side surface 52 of the fixed blade 50.

[0045] In one embodiment, the top surface 422 of the first guide portion 42 is an inclined surface that intersects with the side surface 421 of the first guide portion 42 and gradually extends from the side surface toward the cutting edge 53 of the fixed blade 50. In this way, the top surface 422 can guide the material to move toward the fixed blade 50.

[0046] In one embodiment, the first guide portion 42 further includes a convex surface 426 that faces away from the side surface 421 of the first guide portion 42 and intersects with the top surface 422 of the first guide portion 42. The function of the convex surface 426 is to prevent the two parts formed after a complete piece of material is cut from remaining stable, making it easier for these two parts to move away from the first side surface 51 and the second side surface 52 of the fixed blade 50, respectively, guided by the first side surface 424 and the second side surface 425. This prevents the cut material from accumulating on both sides of the fixed blade 50 and potentially affecting the normal operation of the electric shears 100.

[0047] In one embodiment, the electric shears 100 further includes a second guide portion 43, which is fixed to the body 41 of the support 40. The fixed blade 50 is indirectly fixed to the body 41 of the support 40 via the second guide portion 43. The top end of the second guide portion 43 includes a guide surface 431 flush with the top surface 422 of the first guide portion 42. In this embodiment, the second guide portion 43 is an elongated plate that can be fixed to a fixing plate 44 protruding from the top surface 411 of the body 41 by screws. The fixing plate 44 is fixed to one end of the machine body 10 in its length direction by screws. In this embodiment, the fixed blade 50 is fixed to the second guide portion 43 near its front end by fasteners. The guide surface 431 extends from the front end of the second guide portion 43 in a direction away from the front end. The guide surface 431 can cooperate with the top surface 422 of the first guide portion 42 to guide the material, facilitating its movement toward the fixed blade 50.

[0048] In one embodiment, the top surface 411 of the body 41 of the support 40 is provided with a positioning groove 413, and the bottom end of the second guide portion 43 is received in the positioning groove 413. The positioning groove 413 provides pre-positioning for the second guide portion 43, facilitating subsequent fixing operations of the second guide portion 43.

[0049] In one embodiment, the positioning groove 413 extends from the top surface 411 of the body 41 of the support 40 to the bottom surface 412 of the body 41. This structure helps to reduce the weight of the support 40 and also helps to allow debris generated during the cutting process of the electric shears 100 to pass through the positioning groove 413 without accumulating on the top surface 411 of the body 41.

[0050] In one embodiment, the positioning groove 413 includes a first side surface 4131 and a second side surface 4132 facing each other. The body 41 of the support 40 also includes a support block 4133 protruding from the first side surface 4131 and extending to the second side surface 4132, and a protrusion 4134 protruding from the first side surface 4131. The bottom end of the second guide portion 43 is supported by the support block 4133, and one side of the second guide portion 43 abuts against the protrusion 4134. During assembly, after the bottom end of the second guide portion 43 is placed into the positioning groove 413, it is supported by the support block 4133, and then the side of the second guide portion 43 abuts against the inner side surface of the positioning groove 413 and the protrusion 4134, respectively, thus positioning the second guide portion 43. At this time, the through hole on the second guide portion 43 for screws or rivets to pass through is approximately aligned with the corresponding through hole on the fixing plate 44.

[0051] In one embodiment, the first guide portion 42 is provided with an opening slot 427 facing the second guide portion 43 and communicating with the positioning groove 413. The opening slot 427 intersects with the top surface 422 of the first guide portion 42, and the front end of the second guide portion 43 is received in the opening slot 427 to achieve the connection between the top surface 422 of the first guide portion 42 and the guide surface 431 of the second guide portion 43. Here, "connection" means that after the material passes the top surface 422 of the first guide portion 42, it immediately contacts the guide surface 431 of the second guide portion 43. That is, the cooperation between the top surface 422 of the first guide portion 42 and the guide surface 431 of the second guide portion 43 can provide continuous guidance for the material.

[0052] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. An electric scissor, characterized in that, include: The machine body; a moving blade movably connected to the machine body; and a tool holder, the tool holder including a support and a fixed blade, the support being fixed to the machine body, the support including a body and a first guide portion connected to one end of the body, the fixed blade being fixed to the body, the side of the first guide portion being inclined relative to the fixed blade, the side extending from the top surface of the first guide portion to the bottom surface of the first guide portion and gradually moving away from the first side surface of the fixed blade and the second side surface opposite to the first side surface.

2. The electric scissors according to claim 1, characterized in that, The top surface of the first guide portion is an inclined surface that intersects with the side surface of the first guide portion and gradually extends from the side surface toward the cutting edge of the fixed blade.

3. The electric scissors according to claim 2, characterized in that, The first guide portion also includes a convex surface that is opposite to the side surface of the first guide portion and intersects with the top surface of the first guide portion.

4. The electric scissors according to claim 2, characterized in that, It also includes a second guide portion, which is fixed to the body of the support. The fixed blade is indirectly fixed to the body of the support through the second guide portion. The top end of the second guide portion includes a guide surface that is flush with the top surface of the first guide portion.

5. The electric scissors according to claim 4, characterized in that, The support body is provided with a positioning groove, and the bottom end of the second guide portion is received in the positioning groove.

6. The electric scissors according to claim 5, characterized in that, The positioning groove extends from the top surface of the support body to the bottom surface of the support body.

7. The electric scissors according to claim 6, characterized in that, The positioning groove includes a first side and a second side opposite to each other. The body of the support also includes a support block protruding from the first side and extending to the second side, and a protrusion protruding from the first side. The bottom end of the second guide is supported by the support block, and one side of the second guide abuts against the protrusion.

8. The electric scissors according to claim 4, characterized in that, The first guide portion is provided with an opening groove facing the second guide portion. The opening groove intersects with the top surface of the first guide portion. The second guide portion is partially received in the opening groove to achieve the connection between the top surface of the first guide portion and the guide surface of the second guide portion.

9. The electric scissors according to claim 1, characterized in that, The machine body includes a main body section and a handle section connected to the main body section. The moving blade and the support of the blade holder are both connected to the main body section. The main body section and the handle section extend in directions that intersect each other.

10. The electric scissors according to claim 1, characterized in that, The body contains a light-emitting element, and the body includes a light-transmitting section that allows light emitted by the light-emitting element to pass through.

Images