Shaver

Abstract

The utility model belongs to the technical field of shaving equipment, and particularly provides a shaver. In order to solve the problem that an opening of a shell of an existing shaver is extremely prone to deformation, so that a segment difference exists between the shell and a component connected with the shell, the shaver comprises a shaver body and a shaver head assembly. The machine body comprises a shell, at least one stop structure arranged on the inner side of the shell and a cover body connected with the shell in an inserted mode, and the part, inserted into the shell, of the cover body is clamped between the shell and the stop structure, so that the stop structure provides force for the shell to be close to the cover body. The tool bit assembly is fixedly connected with the cover body. The shaver provided by the utility model overcomes the technical problems.

Description

Technical Field

[0001] The utility model belongs to the technical field of shaving equipment and specifically provides a shaver. Background Art

[0002] A shaver is a device used for shaving, which can remove beards from men's faces. A three-head shaver is loved and used by a large number of users because of its good shaving effect.

[0003] Existing shavers, especially three-head shavers, mainly include a body and a cutter head assembly mounted on the body. The body generally includes a housing and a battery and a motor integrated in the housing, and is held by the user. The cutter head assembly is used to contact the user's face and remove the beard on the user's face through the cutter head.

[0004] Usually, the opening at the top of the shell is relatively large to ensure that components such as the battery and the motor can be installed in the shell and to ensure the connection between the body and the cutter head assembly. However, the relatively large opening makes the top of the shell easily deformed by force, especially being squeezed by the internal components of the shell and bending outward. In particular, during the assembly of the razor, the opening of the shell is very likely to deform, causing a step difference between the shell and the components connected to the top, affecting the yield rate of the razor. Moreover, during the long-term use of the razor, the shell is also prone to deformation at the opening due to bumps or thermal expansion and contraction. Utility Model Content

[0005] One purpose of the utility model is to solve the problem that the opening of the existing shaver housing is very easy to deform, resulting in a step difference between the housing and the parts connected thereto.

[0006] To achieve the above object, the utility model provides a shaver, comprising:

[0007] A body, comprising a shell, at least one stopper structure arranged inside the shell, and a cover body plugged into the shell, wherein a portion of the cover body inserted into the shell is clamped between the shell and the stopper structure, so that the stopper structure provides a force for the shell to approach the cover body;

[0008] The cutter head assembly is fixedly connected to the cover body.

[0009] Optionally, a side of the top of the stop structure close to the shell is provided with an avoidance recess structure, and a bottom side of the cover body is provided with a ring edge, which is inserted into the shell and embedded in the avoidance recess structure, thereby being clamped between the shell and the stop structure.

[0010] Optionally, there are at least two stop structures, and the cover body is provided with a reinforcing rib on the inner side of the ring edge, and the reinforcing rib is embedded between two adjacent stop structures to prevent the cover body from rotating.

[0011] Optionally, the top end of the shell is inclined downward from back to front, and the avoidance recess structure is located at the bottom side of the front side of the top end of the shell in a direction parallel to the central axis of the shell.

[0012] Optionally, the stop structure is a rib fixedly connected to or integrally formed with the shell.

[0013] Optionally, the cover body is provided with an annular groove on the annular edge, and the fuselage further comprises a sealing ring embedded in the annular groove, so that the cover body is sealed and connected to the shell through the sealing ring.

[0014] Optionally, the cover body is provided with an internal thread structure, and the cutter head assembly includes a bolt, and the bolt is tightened into the internal thread structure to fix the cutter head assembly to the cover body.

[0015] Optionally, the shaver further comprises a decorative cover mounted on the housing, wherein the decorative cover is located between the cover body and the cutter head assembly and is pressed onto the housing by the cutter head assembly.

[0016] Optionally, slots are respectively provided on two opposite sides of the top of the shell, and the decorative cover is provided with a plug-in structure corresponding to the slot, and the plug-in structure is inserted into the slot; and / or, the decorative cover is provided with an avoidance hole for avoiding the bolt.

[0017] Optionally, the body further includes a fixing frame arranged in the shell, a motor mounted on the fixing frame and a battery mounted on the fixing frame, and the cover body is fixedly connected to the top end of the fixing frame; and / or, the cutter head assembly includes three cutter heads.

[0018] Based on the above description, those skilled in the art can understand that, in the aforementioned technical solution of the present invention, by providing at least one stop structure on the inner side of the shell, the portion of the cover body inserted into the shell is clamped between the shell and the stop structure, so that the stop structure provides a force for the shell to approach the cover body. Therefore, the shell of the present invention can be tightened inward by the cover body through the stop structure, effectively curbing the deformation of the open part of the shell, thereby avoiding the step difference between the shell and the parts connected thereto, and improving the yield rate during the assembly process of the shaver.

[0019] Furthermore, by setting an avoidance recess structure on the top of the stop structure close to the side of the shell, and setting a ring edge on the bottom side of the cover body, the ring edge is inserted into the shell and embedded in the avoidance recess structure, so that the ring edge is clamped in the middle by the shell and the stop structure, thereby achieving the clamping and fixing of the cover body by the stop structure and the shell.

[0020] Furthermore, by providing at least two stop structures, providing reinforcing ribs on the inner side of the ring edge, and embedding the reinforcing ribs between two adjacent stop structures, the cover body can be prevented from rotating, thereby improving the structural stability and connection strength between the cover body and the shell.

[0021] Furthermore, by making the top of the shell tilt downward from the back to the front, the cutter head assembly mounted on the body can be tilted forward and upward, which is convenient for the user to shave the face when holding the body. By making the avoidance recess structure located at the bottom side of the front side of the top of the shell in a direction parallel to the central axis of the shell, the avoidance recess structure is located inside the shell and can be protected by the shell, and it is ensured that the cover body can be inserted into the shell.

[0022] Furthermore, by sealingly connecting the cover body and the shell through a sealing ring, the cover body and the shell can provide a relatively sealed environment, thereby preventing dust from entering the shell and contaminating the interior of the shell.

[0023] Furthermore, by providing an internal thread structure on the cover body and tightening the bolts on the cutter head assembly into the internal thread structure, the cutter head assembly is fixed to the cover body, thereby ensuring the connection strength between the cutter head assembly and the body.

[0024] Furthermore, by arranging a decorative cover between the cover body and the cutter head assembly and pressing the cover body onto the housing, the overall aesthetics of the shaver is ensured.

[0025] Furthermore, by respectively arranging slots on two opposite sides of the top of the shell, and arranging a plug-in structure corresponding to the slots on the decorative cover, when the plug-in structure is inserted into the slot, even if the decorative cover squeezes the shell outward, the shell will be tightened inwardly under the action of the stop structure, maintaining a normal shape, and will not bulge outward.

[0026] Other beneficial effects of the present invention will be described in detail below in conjunction with the accompanying drawings so that those skilled in the art can more clearly understand the improved purposes, features and advantages of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solution of the utility model, some embodiments of the utility model will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that the same figure number indicates the same or similar parts or components in different drawings; the drawings of the utility model are not necessarily drawn to scale. In the drawings:

[0028] Figure 1 is a structural exploded view of a shaver in some embodiments of the present invention (from a front upper axonometric perspective);

[0029] Figure 2 is a structural exploded view of a shaver in some embodiments of the present invention (from a rear lower axonometric perspective);

[0030] Figure 3 is a front upper isometric view of a shaver in some embodiments of the present invention;

[0031] Figure 4 yes Figures 1 to 3 Axonometric view of the middle shell;

[0032] Figure 5 yes Figure 4 A cross-sectional view of the middle shell along the AA direction;

[0033] Figure 6 yes Figure 1 View of the middle decorative cover along the F1 direction;

[0034] Figure 7 yes Figure 6 View of the middle decorative cover along the F2 direction;

[0035] Figure 8 yes Figure 7 A cross-sectional view of the middle decorative cover along the BB direction;

[0036] Fig. 9 yes Figures 1 to 3 Front view of the middle razor;

[0037] Fig.10 yes Fig. 9 Cross-sectional view of the middle razor along the CC direction;

[0038] Fig.11 yes Fig.10 Enlarged view of the middle D part;

[0039] Fig.12 yes Fig.10 Enlarged view of part E in the middle.

[0040] Description of reference numerals:

[0041] 001. Razor;

[0042] 100, fuselage; 110, shell; 111, slot; 120, stopper structure; 121, avoidance recess structure; 130, cover; 131, internal thread structure; 132, ring edge; 1321, annular groove; 133, reinforcing rib; 140, fixing frame; 150, motor; 160, battery; 170, sealing ring;

[0043] 200, cutter head assembly; 210, cutter head; 220, bolt;

[0044] 300, decorative cover; 301, front swing; 310, avoidance hole; 320, plug-in structure;

[0045] 400. Central axis. DETAILED DESCRIPTION

[0046] It should be understood by those skilled in the art that the embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments of the present invention, and the embodiments are intended to explain the technical principles of the present invention, rather than to limit the protection scope of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should still fall within the protection scope of the present invention.

[0047] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0048] Furthermore, it should be noted that in the description of the present utility model, unless otherwise clearly specified and limited, the terms "install", "connect", and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances. For example, the terms "install", "connect", "connect" and "fix", unless otherwise specifically described, can specifically be any feasible connection form such as bolt connection, screw connection, welding, plug-in, riveting, melting, and clamping.

[0049] like Figures 1 to 3 As shown, in some embodiments of the present invention, the shaver 001 includes a body 100 , a cutter head assembly 200 and a decorative cover 300 .

[0050] Among them, the body 100 includes a shell 110, at least one stop structure 120 arranged on the inner side of the shell 110, and a cover body 130 plugged into the shell 110. The part of the cover body 130 inserted into the shell 110 is clamped in the middle by the shell 110 and the stop structure 120, so that the stop structure 120 provides a force for the shell 110 to approach the cover body 130.

[0051] The cutter head assembly 200 is fixedly connected to the cover body 130 .

[0052] The decorative cover 300 is disposed between the cutter head assembly 200 and the cover body 130 to decorate or optimize the appearance of the shaver 001 .

[0053] Those skilled in the art can understand that, in some embodiments of the present invention, by providing at least one stop structure 120 inside the housing 110, the portion of the cover 130 inserted into the housing 110 is clamped between the housing 110 and the stop structure 120, so that the stop structure 120 provides a force for the housing 110 to approach the cover 130. Therefore, the housing 110 of the present invention can be tightened inward by the cover 130 through the stop structure 120, effectively curbing the deformation of the open portion of the housing 110, thereby avoiding the step difference between the housing 110 and the parts connected thereto, and improving the yield rate of the shaver 001 during the assembly process.

[0054] In addition, in other embodiments of the present invention, those skilled in the art may also omit the decoration cover 300 as required.

[0055] It should be noted that the present invention is particularly suitable for a shaver 001 whose body 100 has a certain length and whose cross section is relatively close to a circle. Further, the cutter head assembly 200 includes three cutter heads 210 .

[0056] Of course, in other embodiments of the present invention, those skilled in the art may also set the body 100 to any other feasible shape as needed, for example, setting the body 100 to have a cross-section of an oblong, strip, triangle, etc. Further, those skilled in the art may also make the cutter head assembly 200 include any other number of cutter heads 210 as needed, for example, one, two, five, etc.

[0057] like Figure 1 and Figure 2As shown, in some embodiments of the present invention, the body 100 further includes a fixing frame 140 disposed in the housing 110, a motor 150 mounted on the fixing frame 140, and a battery 160 mounted on the fixing frame 140. The cover 130 is fixedly connected to the top of the fixing frame 140.

[0058] Furthermore, the cover body 130 and the fixing frame 140 can be fixedly connected together by any feasible connection method such as clamping, screw connection, welding, etc.

[0059] Exemplarily, a pair or a group of fixing ears (not marked in the figure) are provided on one side of the cover body 130 close to the fixing frame 140, and the fixing ears are plate-like structures extending from the cover body 130 to the fixing frame 140. A card slot is provided on the fixing ear, and a card protrusion (not marked in the figure) corresponding to the card slot is provided on the fixing frame 140, and the card protrusion is inserted into the card slot to fix the cover body 130 and the fixing frame 140 together.

[0060] Alternatively, in other embodiments of the present invention, those skilled in the art may also configure the cover body 130 and the fixing frame 140 as a whole as needed.

[0061] Continue reading Figure 1 and Figure 2 In some embodiments of the present invention, an internal thread structure 131 is provided on the cover body 130 , and the cutter head assembly 200 includes a bolt 220 , which is tightened into the internal thread structure 131 to fix the cutter head assembly 200 to the cover body 130 .

[0062] It will be understood by those skilled in the art that by providing an internal thread structure 131 on the cover body 130 and tightening the bolt 220 on the cutter head assembly 200 into the internal thread structure 131, the cutter head assembly 200 is fixed to the cover body 130, thereby ensuring the connection strength between the cutter head assembly 200 and the body 100.

[0063] Furthermore, in some embodiments of the present invention, the decorative cover 300 is located between the cover body 130 and the cutter head assembly 200 , and is pressed onto the housing 110 by the cutter head assembly 200 when the shaver 001 is assembled.

[0064] Specific as Figure 1 and Figure 2 As shown, the decorative cover 300 is provided with an avoidance hole 310 for avoiding the bolt 220. After the decorative cover 300 is installed on the cover body 130, the bolt 220 of the cutter head assembly 200 passes through the avoidance hole 310 and is tightened with the internal thread structure 131 on the cover body 130, so that the cutter head assembly 200 presses the decorative cover 300 onto the shell 110.

[0065] like Figure 4 and Figure 5 As shown, in some embodiments of the present invention, two opposite sides of the top of the housing 110 are respectively provided with slots 111, so that the housing 110 and the decorative cover 300 are plugged together through the slots 111, thereby realizing the pre-fixation of the decorative cover 300 and the housing 110. At the same time, the avoidance hole 310 on the decorative cover 300 can be aligned with the internal thread structure 131 on the cover body 130.

[0066] like Figure 6 to Figure 7 As shown, in some embodiments of the present invention, a plug-in structure 320 corresponding to the slot 111 is disposed on the decorative cover 300 , so that the decorative cover 300 is plugged together with the housing 110 through the plug-in structure 320 .

[0067] from Figures 4 to 7 As can be seen in the figure, the two slots 111 are respectively located at the front and rear sides of the housing 110, the two plug structures 320 are respectively located at the front and rear sides of the decorative cover 300, and there is a height difference between the two slots 111, and there is also a height difference between the two plug structures 320. The height difference also forms a front swing 301 on the front side of the decorative cover 300. The front swing 301 can make the shaver 001 more beautiful as a whole.

[0068] like Figure 4 and Figure 5 As shown, the slot 111 located at the rear side of the housing 110 has a top opening and an inner opening. That is, the slot 111 located at the rear side of the housing 110 only has an outer side wall, a bottom wall and two end walls.

[0069] In addition, in other embodiments of the present invention, those skilled in the art may also locate the two slots 111 on the left and right sides of the housing 110 and the two plug-in structures 320 on the left and right sides of the decorative cover 300 as needed.

[0070] like Figure 4 and Figure 5 As shown, in some embodiments of the present invention, a side of the top of the stop structure 120 close to the housing 110 is provided with an avoidance recess structure 121 .

[0071] like Figure 2 , Figures 9 to 11 As shown, in some embodiments of the present invention, a ring edge 132 is provided on the bottom side of the cover body 130 , and the ring edge 132 is inserted into the shell 110 and embedded in the avoidance recess structure 121 , so as to be clamped in the middle by the shell 110 and the stop structure 120 .

[0072] It will be understood by those skilled in the art that by providing an avoidance recess structure 121 on the top of the stop structure 120 close to the side of the shell 110, and providing an annular edge 132 on the bottom side of the cover body 130, the annular edge 132 is inserted into the shell 110 and embedded in the avoidance recess structure 121, so that the annular edge 132 is clamped in the middle by the shell 110 and the stop structure 120, thereby achieving the clamping and fixing of the cover body 130 by the stop structure 120 and the shell 110.

[0073] Continue reading Figure 4 and Figure 5 In some embodiments of the present invention, there are at least two stopping structures 120, such as two, three, five, etc.

[0074] In addition, in other embodiments of the present invention, those skilled in the art may also provide one stop structure 120 as needed.

[0075] like Figure 2 As shown, in some embodiments of the present invention, the cover body 130 is provided with a reinforcing rib 133 on the inner side of the ring edge 132 , and the reinforcing rib 133 is embedded between two adjacent stop structures 120 to prevent the cover body 130 from rotating.

[0076] It will be understood by those skilled in the art that by providing at least two stop structures 120, providing reinforcing ribs 133 on the inner side of the ring edge 132, and embedding the reinforcing ribs 133 between two adjacent stop structures 120, the cover body 130 can be prevented from rotating, thereby improving the structural stability and connection strength between the cover body 130 and the shell 110.

[0077] like Figure 1 and Figure 4 As shown, in some embodiments of the present invention, the top of the shell 110 tilts downward from back to front, and the avoidance recess structure 121 is located at the bottom side of the front side of the top of the shell 110 in a direction parallel to the central axis 400 of the shell 110 .

[0078] Those skilled in the art will appreciate that the above structure of the housing 110 not only enables the housing 110 to fit the decorative cover 300, especially the front swing 301 structure of the decorative cover 300, but also enables the cutter head assembly 200 mounted on the body 100 to tilt forward and upward, making it convenient for the user to shave the face while holding the body 100. By making the avoidance recess structure 121 located at the bottom side of the front side of the top end of the housing 110 in a direction parallel to the central axis 400 of the housing 110, the avoidance recess structure 121 is located inside the housing 110 and can be protected by the housing 110, and it is ensured that the cover 130 can be inserted into the housing 110.

[0079] Furthermore, in some embodiments of the present invention, the stop structure 120 is a rib fixedly connected to or integrally formed with the housing 110 , and the stop structure 120 is generally parallel to the central axis 400 of the housing.

[0080] like Figure 4 and Figure 5 As shown, the stop structure 120 as a whole can be a wedge-shaped structure that is wide at the top and narrow at the bottom, so as to reduce the consumables of the stop structure 120 while ensuring the structural strength of the stop structure 120.

[0081] In addition, in other embodiments of the present invention, those skilled in the art will appreciate that the stop structure 120 can be configured as any other feasible structure, such as a rectangular block threadedly connected to the housing 110 , a screw installed on the housing 110 , and the like.

[0082] like Fig.10 and Fig.12 As shown, in some embodiments of the present invention, the cover 130 is provided with an annular groove 1321 on the annular edge 132. The body 100 further includes a sealing ring 170 embedded in the annular groove 1321, so that the cover 130 is sealedly connected to the housing 110 through the sealing ring 170.

[0083] Those skilled in the art will appreciate that by sealing the cover 130 and the shell 110 via the sealing ring 170 , the cover 130 and the shell 110 can provide a relatively sealed environment to prevent dust from entering the shell 110 and contaminating the interior of the shell 110 .

[0084] like Figures 10 to 12 As shown, when the shaver 001 of the utility model is assembled, the fixing frame 140, the motor 150 and the battery 160 are all located in the housing 110, and the ring edge 132 of the cover body 130 is inserted into the housing 110 and abuts against the inner peripheral wall of the housing 110 in the circumferential direction. The decorative cover 300 is plugged into the slot 111 on the housing 110 through its plug-in structure 320. The bolt 220 on the cutter head assembly 200 passes through the avoidance hole 310 on the decorative cover 300 and is tightened with the internal thread structure 131 on the cover body 130, thereby fixing the cutter head assembly 200 to the cover body 130 and pressing the decorative cover 300 to the cover body 130.

[0085] Furthermore, the upper cover (not marked in the figure) of the cutter head assembly 200 can be disassembled so that the bolts 220 can be fixed to the cover body 130 after the upper cover is disassembled.

[0086] Based on the above description, those skilled in the art can understand that the shaver 001 of the utility model has at least the following technical effects:

[0087] The structural stability is enhanced, and the shell 110 is not easily deformed. By providing at least one stop structure 120 inside the shell 110 of the body 100, a stable clamping relationship is formed between the shell 110 and the cover 130, which effectively reduces the deformation problem at the opening of the shell 110, avoids the step difference between the components during the assembly process, and improves the product yield. In addition, the design of the stop structure 120 makes the shell 110 and the cover 130 closely connected, enhancing the overall structural strength and durability.

[0088] The assembly process is relatively simple. By passing the bolt 220 on the cutter head assembly 200 through the avoidance hole 310 on the decorative cover 300 and directly tightening it in the internal thread structure 131 of the cover body 130, the effect of fixing two components at one time is achieved, thereby improving the assembly efficiency.

[0089] The cover 130 has good waterproof and dustproof functions. By embedding the sealing ring 170 in the annular groove 1321 on the ring edge 132 of the cover 130, the cover 130 and the housing 110 are sealed and connected, effectively preventing dust and moisture from entering the housing 110, keeping the interior clean, and extending the service life of the shaver 001.

[0090] So far, the technical solution of the utility model has been described in combination with the above multiple embodiments, but it is easy for those skilled in the art to understand that the protection scope of the utility model is not limited to these specific embodiments. Without departing from the technical principle of the utility model, those skilled in the art can split and combine the technical solutions in the above embodiments, and can also make equivalent changes or replacements to the relevant technical features. Any changes, equivalent replacements, improvements, etc. made within the technical concept and / or technical principle of the utility model will fall within the protection scope of the utility model.

Claims

1. A shaver, characterized in that: include: A body, comprising a shell, at least one stopper structure arranged inside the shell, and a cover body plugged into the shell, wherein a portion of the cover body inserted into the shell is clamped between the shell and the stopper structure, so that the stopper structure provides a force for the shell to approach the cover body; The cutter head assembly is fixedly connected to the cover body.

2. The shaver according to claim 1, characterized in that A side of the top of the stop structure close to the shell is provided with an avoidance recess structure. The bottom side of the cover body is provided with a ring edge, which is inserted into the shell and embedded in the avoidance recess structure, so as to be clamped in the middle by the shell and the stop structure.

3. The shaver according to claim 2, characterized in that There are at least two stop structures. The cover body is provided with reinforcing ribs on the inner side of the ring edge, and the reinforcing ribs are embedded between two adjacent stop structures to prevent the cover body from rotating.

4. The shaver according to claim 2, characterized in that The top end of the shell body is inclined downward from the back to the front, and the avoidance recess structure is located at the bottom side of the front side of the top end of the shell body in a direction parallel to the central axis of the shell body.

5. The shaver according to any one of claims 1 to 4, characterized in that The stop structure is a rib fixedly connected to the housing or integrally formed therewith.

6. The shaver according to any one of claims 2 to 4, characterized in that The cover body is provided with an annular groove on the annular edge. The body further comprises a sealing ring embedded in the annular groove, so that the cover body is sealed and connected to the shell through the sealing ring.

7. The shaver according to any one of claims 1 to 4, characterized in that The cover body is provided with an internal thread structure. The cutter head assembly includes a bolt that is tightened into the internal thread structure to fix the cutter head assembly to the cover body.

8. The shaver according to claim 7, characterized in that The shaver further comprises a decorative cover mounted on the housing, wherein the decorative cover is located between the cover body and the cutter head assembly and is pressed onto the housing by the cutter head assembly.

9. The shaver according to claim 8, characterized in that The top of the housing is provided with slots on two opposite sides respectively, and the decorative cover is provided with plug-in structures corresponding to the slots, and the plug-in structures are inserted into the slots; and / or, The decorative cover is provided with an escape hole for escaping the bolt.

10. The shaver according to any one of claims 1 to 4, characterized in that The fuselage further includes a fixing frame arranged in the shell, a motor mounted on the fixing frame, and a battery mounted on the fixing frame, and the cover is fixedly connected to the top of the fixing frame; and / or, The cutter head assembly includes three cutter heads.

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