Cutting device

Abstract

The present disclosure provides a cutting device capable of more reliably suppressing a situation in which a dial is erroneously operated during use. This cutting device (10) is provided with: a main body section (11) having a gripping section (11a); and a blade part having a fixed blade fixed to the main body part (11) and a movable blade capable of reciprocating sliding with respect to the fixed blade. Furthermore, the cutting device (10) is provided with: a dial (21) which is rotatably attached to the main body part (11) and which is operated when the trimming height is adjusted; and a cover (30) that covers a part of the dial (21) in a state in which the dial (21) is allowed to rotate. Furthermore, the dial (21) is mounted between the grip section (11a) of the main body section (11) and the blade section, and the cover (30) covers the grip section side of the dial (21).

Description

Technical Field

[0001] The present disclosure relates to a cutting device. Background Art

[0002] Conventionally, as a cutting device, as disclosed in Patent Document 1, a trimmer has been proposed which includes a blade unit having a fixed blade and a movable blade and a main body to which the blade unit is mounted, and cuts hair by reciprocatingly sliding the movable blade relative to the fixed blade.

[0003] In Patent Document 1, the trimmer as a cutting device includes a trimming height adjustment mechanism capable of changing the trimming height of hair (i.e., the length of hair remaining after being cut by the blade portion), and the trimming height adjustment mechanism includes a dial rotatably mounted on a main body 11. Then, by operating the dial (more specifically, rotating the dial relative to the main body), the movable blade is slid relative to the fixed blade in a direction intersecting the reciprocating sliding, and the trimming height of hair is adjusted by sliding the movable blade relative to the fixed blade in a direction intersecting the reciprocating sliding.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application Publication No. 2015-195869 Summary of the invention

[0007] Problem that the invention aims to solve

[0008] In such a type of cutting device in which the trimming height is adjusted by operating a dial, it is preferable to more reliably suppress the situation in which the dial is operated incorrectly during use.

[0009] Therefore, an object of the present disclosure is to obtain a cutting device that can more reliably suppress a situation in which a dial is erroneously operated during use.

[0010] Solutions for solving problems

[0011] A cutting device according to one embodiment of the present invention includes: a main body having a grip; a blade having a fixed blade fixed to the main body and a movable blade that can slide back and forth relative to the fixed blade; a dial that is rotatably mounted on the main body and is operated when adjusting the trimming height; and a cover that covers a portion of the dial in a state that allows the dial to rotate, the dial being mounted between the grip of the main body and the blade, and the cover covering the grip side of the dial.

[0012] Effects of the Invention

[0013] According to the present disclosure, it is possible to obtain a cutting device that can more reliably suppress a situation in which the dial is erroneously operated during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a perspective view showing an example of a trimmer according to the embodiment.

[0015] Figure 2 This is a front view showing an example of a trimmer according to an embodiment.

[0016] Figure 3 It is a side view which shows an example of the trimmer of embodiment.

[0017] Figure 4 It is along Figure 2 AA cross-sectional view.

[0018] Figure 5 It is a perspective view showing an example of a blade assembly included in the trimmer according to the embodiment.

[0019] Figure 6 It is a top view showing an example of a blade assembly included in the trimmer according to the embodiment.

[0020] Figure 7 It is a rear view showing an example of a blade assembly included in the trimmer according to the embodiment.

[0021] Figure 8 It is a side view showing an example of a blade assembly included in the trimmer according to the embodiment.

[0022] Fig. 9 It is a perspective view showing an example of a blade assembly provided in the trimmer according to the embodiment in an exploded manner.

[0023] Fig.10 1 is a diagram showing an example of a trimming height adjustment mechanism provided in the trimmer according to the embodiment, and is a cross-sectional view showing a state in which the trimming height is maximum.

[0024] Fig.11 1 is a diagram showing an example of a trimming height adjustment mechanism provided in the trimmer according to the embodiment, and is a cross-sectional view showing a state in which the trimming height is minimum.

[0025] Fig.12 This is a diagram showing an example of a trimming height adjustment mechanism provided in the trimmer according to the embodiment, and is an enlarged plan view showing the inside of the dial in a state where the trimming height is maximum.

[0026] Fig.131 is a diagram showing an example of a trimming height adjustment mechanism provided in the trimmer according to the embodiment, and is an enlarged plan view showing the inside of the dial in a state where the trimming height is minimum.

[0027] Fig.14 It is a top view showing an example of a dial according to the embodiment.

[0028] Fig.15 This is a side view showing an example of a dial according to the embodiment.

[0029] Fig.16 This is a rear view showing an example of a dial according to the embodiment.

[0030] Fig.17 It is a diagram showing an enlarged engagement recess formed in the dial according to the embodiment.

[0031] Fig.18 It is a diagram showing a first modified example of the engaging recessed portion and the engaging protruding portion included in the trimmer according to the embodiment.

[0032] Fig.19 It is a diagram showing a second modified example of the engaging recessed portion and the engaging protruding portion included in the trimmer according to the embodiment.

[0033] Fig. 20 It is a diagram showing a third modified example of the engaging recessed portion and the engaging protruding portion included in the trimmer according to the embodiment.

[0034] Fig.21 It is a perspective view showing, in an enlarged manner, a cover provided in the trimmer according to the embodiment.

[0035] Fig. 22 It is a cross-sectional view showing in an enlarged manner the cover provided in the trimmer according to the embodiment.

[0036] Fig.23 It is a diagram showing an example of a method of holding the trimmer according to the embodiment.

[0037] Fig.24 It is a diagram showing a first modified example of the method of holding the trimmer according to the embodiment.

[0038] Fig.25 It is a diagram showing a second modified example of the method of holding the trimmer according to the embodiment.

[0039] Fig.26 It is a diagram showing a third modified example of the method of holding the trimmer according to the embodiment.

[0040] Fig. 27 It is a diagram showing a fourth modified example of the method of holding the trimmer of the embodiment.

[0041] Fig.28It is a diagram showing a fifth modified example of the method of holding the trimmer according to the embodiment.

[0042] Fig.29 It is a diagram showing a sixth variation of the method of holding the trimmer of the embodiment.

[0043] Fig.30 It is magnified Figure 4 Figure 2.

[0044] Fig.31 It is magnified Figure 4 Figure 2.

[0045] Description of Reference Numerals

[0046] 10. trimmer; 11. main body; 11a. grip; 12. housing; 12a. operation switch; 12b. display; 121. dial arrangement; 121a. surface; 1211. support shaft; 1211a. through hole; 1212. rib; 1213. slit; 1214. fixing portion; 1215. fixed portion; 13. rechargeable battery; 14. electric motor; 15. power transmission mechanism; 16. shaft; 17. control unit; 18. blade fixing spring; 20. trimming height adjustment mechanism; 21. dial; 211a. top surface; 2111. bearing; 2112. through hole; 2113. scale; 212. peripheral wall; 212a. peripheral surface; 2121. concave-convex portion; 2122. protrusion 2123, dial side rib; 21231, first dial side rib; 21232, second dial side rib; 22, transmission mechanism; 221, first conversion mechanism; 2211, groove; 2211a, one end; 2211b, other end; 2212, rod; 22121, pin; 2213, sliding member; 22131, hook; 2214, coil spring; 222, second conversion mechanism; 2221, operating shaft; 2222, rotating member; 2223, rotating shaft; 2224, acting member; 23, holding mechanism; 231, holding spring; 2311, engaging protrusion; 23111, first inclined surface; 23112, second inclined surface; 232, engaged portion; 2321, engaging recess; 23211, first inclined surface; 23212, second inclined surface; 2321, engaging recess; 233, special-shaped engaging portion; 30, cover; 31, top wall; 31a, top surface; 31b, top end surface; 311, supporting shaft; 312, protrusion; 312a, surface; 313, marking line; 32, peripheral wall; 32a, peripheral surface; 33, connecting wall; 33a, connecting surface; 34, locking piece; 341, locking hook; 40, blade assembly; 41, fixing plate; 41a, hook portion; 41b, insertion groove; 41c, holding groove; 42, guide plate; 42a, hook portion; 43, push-up spring; 43a, spiral portion; 43b, connecting portion; 43c, arm portion; 44, switching lever; 44a, cylindrical portion; 44b , storage recess; 44c, storage recess; 44d, protrusion; 45, blade portion; 46, movable blade; 461, main body; 462, movable blade strip; 463, movable blade slot; 47, fixed blade; 4711, insertion protrusion; 472, fixed blade strip; 473, fixed blade slot; C1, rotation axis; D1, radial length; D2, length in the direction along the rotation axis; F1, thumb; F2, index finger; F3, middle finger; F4, ring finger; F5, little finger; H, hair scraps; H1, span height; H11, span height; H12, span height; S1, gap; S3, storage space; S3a, opening; θ1, tilt angle; θ11, tilt angle; θ12, tilt angle. DETAILED DESCRIPTION

[0047] Hereinafter, the embodiments will be described in detail with reference to the accompanying drawings. However, there are cases where an overly detailed description is omitted. For example, there are cases where a detailed description of a well-known matter is omitted or a repeated description of substantially the same structure is omitted.

[0048] In addition, the drawings and the following description are provided to allow those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

[0049] In addition, in the following embodiment and its modified example, a trimmer that cuts the hair (that is, an example of hair) of a user or the like is exemplified as the cutting device.

[0050] (Implementation Method)

[0051] Figure 1 It is a perspective view showing an example of the trimmer 10 according to the embodiment. Figure 2 It is a front view which shows an example of the trimmer 10 which concerns on embodiment. Figure 3 It is a side view which shows an example of the trimmer 10 which concerns on embodiment. Figure 4 It is along Figure 2 The AA cross-sectional view of Figure 1 to Figure 4 As shown, the trimmer 10 of this embodiment includes a main body 11 and a blade assembly 40 detachably mounted on the main body 11. In this embodiment, the main body 11 is formed in an elongated shape, and a grip 11a that can be gripped by hand is formed on the main body 11.

[0052] The trimmer 10 is, for example, a device for treating or arranging the hair of a user or the like by cutting the hair of the user or the like into a desired length. Specifically, the blade assembly 40 includes a metal fixed blade 47 and a metal movable blade 46 that reciprocates and slides relative to the fixed blade 47 in the width direction (i.e., one direction). The blade assembly 40 is mounted on the main body 11, and the movable blade 46 is reciprocated and slid relative to the fixed blade 47 in the width direction using the electric motor 14 housed in the main body 11 as a driving source, so that the fixed blade 47 and the movable blade 46 are sandwiched and cut.

[0053] In addition, in this embodiment, the main body 11 includes a housing 12 that forms a substantially S-shaped outer shell when viewed from the side. The housing 12 can be formed of a material such as synthetic resin, and an operation switch 12a is installed on the front side of the housing 12 so that it can be pushed inward in a state exposed to the outside. In addition, a display unit 12b for confirming the on / off state of the power supply, the charging status of the rechargeable battery 13, etc. is formed on the front side of the housing 12.

[0054] In addition, in the present embodiment, the housing 12 is formed by joining a plurality of split bodies, and a cavity is formed inside the housing 12 formed by joining the split bodies. Various electrical components are accommodated in the cavity. The plurality of split bodies can be joined, for example, by using screws or by fitting the split bodies together.

[0055] In this embodiment, a rechargeable battery 13 and an electric motor 14 driven by the rechargeable battery 13 are housed in a cavity formed inside the housing 12. In addition, a power transmission mechanism 15 for transmitting the rotational driving force of the electric motor 14 to the blade assembly 40 and a shaft 16 driven back and forth by the power transmission mechanism 15 are housed in the cavity formed inside the housing 12. Figure 4 As shown, the shaft 16 is oriented with its top end toward the blade assembly 40 (i.e., Figure 4 The blade assembly 40 is housed in a hollow space inside the housing 12 in a protruding state (on the upper side) and is connected to a guide plate 42 described later of the blade assembly 40. In addition, power can be supplied from the outside using a power cord or the like. In addition, the driving method of the blade assembly 40 is not limited to the above method, and various methods can be used. For example, the blade assembly 40 can be driven using an eccentric shaft that is driven to rotate eccentrically.

[0056] In addition, a control unit 17 and the like that controls the power supply to the electric motor 14 in response to a push-in operation of an operation switch 12 a exposed to the outside are accommodated in a cavity formed inside the housing 12 .

[0057] Figure 5 It is a perspective view showing an example of the blade unit 40 provided in the trimmer 10 according to the embodiment. Figure 6 It is a plan view showing an example of the blade unit 40 provided in the trimmer 10 according to the embodiment. Figure 7 It is a rear view showing an example of the blade unit 40 provided in the trimmer 10 according to the embodiment. Figure 8 It is a side view showing an example of the blade unit 40 provided in the trimmer 10 according to the embodiment. Fig. 9 1 is a perspective view showing an example of a blade assembly 40 of the trimmer 10 according to the embodiment in an exploded manner. The blade assembly 40 has a function of cutting hair, such as Figures 5 to 8 As shown, a blade portion 45 (more specifically, a trimmer blade) is provided by arranging a movable blade 46 and a fixed blade 47 opposite to each other. The blade portion 45 is configured such that a movable blade strip 462 (described later) of the movable blade 46 reciprocates and slides relative to a fixed blade strip 472 (described later) of the fixed blade 47 in the width direction.

[0058] And, if Fig. 9As shown, the blade assembly 40 includes a resin fixed plate 41 for arranging a blade portion 45 and a resin guide plate 42 fixed to a movable blade 46. In addition, the blade assembly 40 includes a metal push-up spring 43 that presses the movable blade 46 toward the fixed blade 47 side and a resin switching lever 44 that holds the push-up spring 43. Fig.10 1 is a diagram showing an example of a cutting height adjustment mechanism 20 provided in the trimmer 10 according to the embodiment, and is a cross-sectional view showing a state in which the cutting height is maximum. Fig.11 1 is a diagram showing an example of a trimming height adjustment mechanism 20 provided in the trimmer 10 of the embodiment, and is a cross-sectional view showing a state in which the trimming height is at a minimum. In the present embodiment, the switching lever 44 is held on the fixing plate 41 in a state in which it can rotate relative to the fixing plate 41, and can be moved from Fig.10 The prone position shown Fig.11 Prostrate between the standing positions shown.

[0059] The fixing plate 41 is a member fixed to the main body 11 in a state where the fixed blade 47 is fixed, and includes a hook portion 41a for engaging with the main body 11, an insertion groove 41b for inserting an insertion protrusion 4711 for holding the fixed blade 47, and a holding groove 41c opened upward. A cylindrical portion 44a of the switching lever 44, which will be described later, is inserted and held in the holding groove 41c in a state where it can rotate relative to the fixing plate 41.

[0060] The guide plate 42 is connected to the shaft 16 when the blade assembly 40 is mounted on the main body 11, and is a member that reciprocates in the width direction. A movable blade 46 is fixed to the guide plate 42. In the present embodiment, the guide plate 42 is provided with a hook portion 42a for engaging the movable blade 46, and the movable blade 46 is fixed to the guide plate 42 by the hook portion 42a and heat sealing. Moreover, the movable blade 46 reciprocates and slides relative to the fixed blade 47 in the width direction in conjunction with the reciprocating motion of the guide plate 42 in the width direction.

[0061] The push-up spring 43 is a member for making the movable blade strip 462 and the fixed blade strip 472 described later more reliably slide in contact with each other by pressing the movable blade 46 toward the fixed blade 47 side, and can be formed by, for example, a torsion spring. In the present embodiment, the push-up spring 43 includes a pair of spiral portions 43a held by the switching lever 44 and a connecting portion 43b held by the switching lever 44 and connecting the pair of spiral portions 43a. In addition, the push-up spring 43 includes an arm portion 43c, which is connected to the side of each spiral portion 43a opposite to the connecting portion 43b side and is fixed to the movable blade 46, and presses the movable blade 46 toward the fixed blade 47 side.

[0062] Furthermore, in this embodiment, if Figure 4As shown, the blade fixing spring 18 is fixed to the housing 12 by means of screws or the like, and the blade fixing spring 18 holds the blade assembly 40 to prevent the blade assembly 40 from falling off from the housing 12 .

[0063] In addition, an attachment may be mounted on the blade assembly 40 , and the trimming height of the trimmer 10 may be changed by mounting the attachment.

[0064] Furthermore, in the trimmer 10 of this embodiment, the trimming height of the hair can also be changed without using accessories, and the main body 11 is provided with a trimming height adjustment mechanism 20. Furthermore, by operating the trimming height adjustment mechanism 20, the switching lever 44 is raised and lowered, and the trimming height of the hair is changed by the raising and lowering operation of the switching lever 44.

[0065] In the present embodiment, the switching lever 44 includes a cylindrical portion 44a, which is inserted into a retaining groove 41c held in the fixed plate 41 in a state in which it can rotate relative to the fixed plate 41. In addition, the switching lever 44 includes a receiving recess 44b that receives the spiral portion 43a of the push-up spring 43 in a state of being engaged with the spiral portion 43a of the push-up spring 43, and a receiving recess 44c that receives the connecting portion of the push-up spring 43. In addition, the switching lever 44 includes a protrusion 44d operated by the transmission mechanism 22. In addition, the switching lever 44 is held in the fixed plate 41 in a state in which it is urged toward the side of the lying posture by the push-up spring 43.

[0066] Fig.12 1 is a diagram showing an example of a trimming height adjustment mechanism 20 provided in the trimmer 10 according to the embodiment, and is a plan view showing, in an enlarged manner, the inner side of the dial 21 in a state where the trimming height is maximum. Fig.13 1 is a diagram showing an example of a trimming height adjustment mechanism 20 provided in the trimmer 10 according to the embodiment, and is an enlarged top view showing the inner side of the dial 21 in a state where the trimming height is minimum. Figure 10 to Figure 13 As shown, the trimming height adjustment mechanism 20 includes a trimming height adjustment dial 21 rotatably mounted on the main body 11 and a transmission mechanism 22 for raising and lowering the switching lever 44 of the blade assembly 40 in conjunction with the rotation of the dial 21. In the present embodiment, the trimming height adjustment dial 21 is provided on the front side of the housing 12, closer to the blade assembly 40 side than the operation switch 12a (i.e., Figure 1 The position of the lower side) is between the gripping portion 11a of the main body 11 and the blade portion 45. At this time, the dial 21 can be Fig.10 In the illustrated state, the housing 12 is relatively rotated about a rotation axis C1 extending in the left-right direction (ie, the horizontal direction).

[0067] In the present embodiment, the dial placement portion 121 is formed between the grip portion 11 a of the main body 11 and the blade portion 45 in a manner recessed inwardly, and the dial 21 is placed on the dial placement portion 121 .

[0068] Fig.14 It is a plan view showing an example of the dial 21 according to the embodiment. Fig.15 It is a side view showing an example of the dial 21 according to the embodiment. Fig.16 FIG. 2 is a rear view showing an example of the dial 21 according to the embodiment. Figure 2 to Figure 4 and Figure 14 to Figure 16 As shown, the dial 21 includes a top wall 211 formed in a substantially disk shape and a peripheral wall 212 extending from the outer peripheral edge of the top wall 211 toward the housing 12 (more specifically, the dial placement portion 121 ).

[0069] Furthermore, a bearing 2111 is formed on the back side of the top wall 211 (i.e., the side opposite to the surface 121a of the dial arrangement portion 121), and the substantially cylindrical support shaft 1211 formed on the dial arrangement portion 121 is fitted into the bearing 2111. In the present embodiment, the bearing 2111 is also substantially cylindrical, and a through hole 2112 is formed in the center of the bearing 2111 so as to penetrate the top wall 211 in the plate thickness direction.

[0070] In addition, in the present embodiment, the trimmer 10 (i.e., an example of a cutting device) includes a cover 30 that covers a portion of the dial 21 in a state that allows the dial 21 to rotate, and a substantially cylindrical support shaft 311 formed in the cover 30 is inserted into the through hole 2112. In this way, the cover 30 and the dial 21 are mounted on the housing 12.

[0071] Specifically, a through hole 1211 a penetrating in the plate thickness direction of the housing 12 is also formed in the central portion of the support shaft 1211 of the dial arrangement portion 121 . Fig. 22 1 is a cross-sectional view showing an enlarged view of the cover 30 of the trimmer 10 according to the embodiment. When the cover 30 and the dial 21 are mounted on the housing 12, as shown in FIG. Fig. 22 As shown, the support shaft 1211 formed on the dial arrangement portion 121 is inserted into the through hole 2112 formed on the top wall 211, and the support shaft 311 formed on the cover 30 is inserted into the through hole 2112. At this time, the top end of the support shaft 311 is opposite to the periphery of the through hole 1211a. In addition, the support shaft 311 is fixed to the dial arrangement portion 121 by the mounting screw 50 in a state where the top end of the support shaft 311 is opposite to the periphery of the through hole 1211a, so that the cover 30 is fixed to the housing 12, and the dial 21 is rotatably mounted to the housing 12 and the cover 30.

[0072] In addition, in this embodiment, a scale 2113 is provided on the outer periphery of the top surface 211a of the top wall 211. The scale 2113 can be formed by indicating the numerical value of the trimming height on the outer periphery of the top surface 211a of the top wall 211. The numerical value can be indicated by, for example, engraving or printing. Figure 2 As shown, a marking line 313 is formed on the top surface 31b of the cover 30, and the current trimming height can be recognized by visually checking the value indicated by the marking line 313. In addition, in the drawings, the scale 2113 is represented by a black circle without showing a specific value.

[0073] On the other hand, a plurality of concave-convex portions 2121 are formed along the circumferential direction on the peripheral surface 212a of the peripheral wall 212. Such concave-convex portions 2121 can be formed, for example, by knurling. Moreover, when operating the dial 21, the finger can be hooked on the concave-convex portion 2121 to operate. In this way, the dial 21 can be operated more easily.

[0074] Furthermore, a protrusion 2122 is formed at the top end of the peripheral wall 212 (more specifically, the top end on the housing 12 side) so as to protrude toward the surface 121a of the dial arrangement portion 121. In addition, a predetermined gap S1 is formed between the top end of the protrusion 2122 and the surface 121a of the dial arrangement portion 121. By doing so, when the dial 21 is operated, the dial 21 and the housing 12 do not interfere with each other. The size of the gap S1 formed at this time is preferably set to a size that can minimize the entry of hair scraps H (i.e., an example of cuttings) into the dial 21 without impairing the rotation operability of the dial 21.

[0075] Here, in the present embodiment, the transmission mechanism 22 is accommodated in a cavity formed inside the housing 12 , and includes a first conversion mechanism 221 and a second conversion mechanism 222 .

[0076] The first conversion mechanism 221 converts the rotation of the dial 21 about the rotation axis C1 (that is, the reciprocating rotational motion) into the radial direction (for example, Fig.10 The mechanism for reciprocating linear motion in the state shown in the vertical direction) has a groove 2211. Fig.12 and Fig.13 As shown, the groove 2211 is formed inside the dial 21 and is formed in a curved shape such that the distance from the rotation axis C1 decreases from one end 2211 a toward the other end 2211 b .

[0077] In addition, the first conversion mechanism 221 includes: a rod 2212 having a pin 22121 that is movably inserted into the groove 2211; and a slider 2213 that is provided at the top end of the rod 2212. When the dial 21 is rotated, the pin 22121 moves in the groove 2211 in conjunction with the rotation of the dial 21. In this way, the rod 2212 and the slider 2213 move in the radial direction of the dial 21 (as an example, Fig.10 Reciprocating linear motion in the up and down directions (in the state shown).

[0078] Furthermore, in this embodiment, a coil spring 2214 is attached to the rod 2212, and the pin 22121 is urged toward the other end 2211b side by the coil spring 2214 in the groove 2211. By doing so, the load required when rotating the dial 21 counterclockwise is reduced.

[0079] On the other hand, the second conversion mechanism 222 is a mechanism for converting the reciprocating linear motion converted by the first conversion mechanism 221 into a rotation (i.e., reciprocating rotational motion) centered on a rotation axis extending in the width direction (i.e., one direction), and includes an operating shaft 2221. The operating shaft 2221 is attached to a hook portion 22131 provided on the slider 2213 in a state extending in the width direction (i.e., one direction), and is rotated in the radial direction (as an example) of the dial 21 together with the slider 2213. Fig.10 Reciprocating linear motion in the up and down directions (in the state shown).

[0080] Furthermore, the second conversion mechanism 222 includes: a rotating member 2222, one end of which is connected to the operating shaft 2221; and a rotating shaft 2223, which extends in the width direction (i.e., one direction), and the rotating member 2222 is rotatably mounted on the rotating shaft 2223. In this embodiment, a pair of rotating members 2222 are connected to both ends of the operating shaft 2221 in the width direction (i.e., one direction). In addition, the second conversion mechanism 222 has an action member 2224, which is connected to the other end of the rotating member 2222 and performs the standing and falling operations of the switching lever 44.

[0081] Furthermore, when the operating shaft 2221 is moved in the radial direction of the dial 21 (as an example, Fig.10 When the rotating member 2222 reciprocates linearly (in the up and down direction of the state shown), the rotating member 2222 rotates around the rotating shaft 2223 in conjunction with the reciprocating linear motion of the operating shaft 2221. In this way, the action member 2224 connected to the rotating member 2222 rotates in conjunction with the other end of the rotating member 2222, and the rotation of the action member 2224 performs the standing up and falling down operation of the switching lever 44.

[0082] In this embodiment, when the dial 21 is rotated counterclockwise, Fig.10 and Fig.11 In the state shown, the sliding member 2213 and the operating shaft 2221 move linearly downward. Moreover, as the operating shaft 2221 moves downward, the rotating member 2222 rotates around the rotating shaft 2223. At this time, the rotating member 2222 rotates in a manner such that one end side connected to the operating shaft 2221 moves downward and the other end connected to the action member 2224 moves upward. In addition, the action member 2224 moves upward as the other end side of the rotating member 2222 moves upward. Moreover, by moving the action member 2224 upward, the switching lever 44 overcomes the force of the push-up spring 43 and rotates toward the upright posture side. By doing so, the movable blade 46 slides toward the top side (i.e., the front in the front-to-back direction) while maintaining a pressed state relative to the fixed blade 47 with the help of the push-up spring 43 and the guide plate 42.

[0083] On the other hand, when the dial 21 is rotated clockwise, Fig.10 and Fig.11 In the state shown, the sliding member 2213 and the operating shaft 2221 move linearly upward. Moreover, as the operating shaft 2221 moves upward, the rotating member 2222 rotates around the rotating shaft 2223. At this time, the rotating member 2222 rotates in a manner that one end side connected to the operating shaft 2221 moves upward and the other end connected to the action member 2224 moves downward. In addition, the action member 2224 moves downward as the other end side of the rotating member 2222 moves downward. Moreover, by moving the action member 2224 downward, the switching lever 44 is rotated to the side of the lying posture by utilizing the action force of the push-up spring 43. By doing so, the movable blade 46 slides toward the root side (i.e., the rear in the front-to-back direction) while maintaining a pressed state relative to the fixed blade 47 with the help of the push-up spring 43 and the guide plate 42.

[0084] Thus, in the present embodiment, when the dial 21 is rotated counterclockwise, the movable blade 46 slides toward the tip side of the fixed blade 47, and when the dial 21 is rotated clockwise, the movable blade 46 slides toward the root side of the fixed blade 47. Figure 2 In the state shown, the dial 21 is rotated counterclockwise, and the dial 21 is rotated clockwise. Figure 2 In the state shown, the dial 21 is rotated clockwise.

[0085] At this time, the fixed blade 47 is set to a tapered shape with a tapered tip side, and the movable blade 46 slides on the tapered fixed blade 47. That is, in this embodiment, the movable blade 46 slides between the root side and the tip side on the tapered fixed blade 47. By doing so, the trimming height of the hair is changed.

[0086] In addition, in the present embodiment, when the dial 21 is rotated counterclockwise to rotate the switching lever 44 from the initial position to the upright posture side by a predetermined amount, the protrusion 44d contacts the hook 41a of the fixed plate 41 to restrict further uprighting. That is, the protrusion 44d contacts the hook 41a of the fixed plate 41 to restrict further uprighting of the switching lever 44, thereby restricting the sliding of the movable blade 46 toward the tip side. In addition, in the present embodiment, when the switching lever 44 is in the initial position, the movable blade 46 is in a state where the movable blade 46 is located closest to the root side of the fixed blade 47 (i.e., a state where the trimming height is the highest). Moreover, when the uprighting of the switching lever 44 is restricted by the protrusion 44d, the movable blade 46 is located closest to the tip side of the fixed blade 47 (i.e., a state where the trimming height is the shortest).

[0087] In addition, the movable blade 46 includes a main body 461, a plurality of movable blade strips 462 arranged in parallel along the width direction at one end side of the main body 461 (i.e., the front side in the front-to-rear direction), and a plurality of movable blade grooves 463 formed between adjacent movable blade strips 462.

[0088] On the other hand, the fixed blade 47 includes a main body 471, a plurality of fixed blade strips 472 arranged in parallel along the width direction at one end side (i.e., the front side in the front-rear direction) of the main body 471, and a plurality of fixed blade grooves 473 formed between adjacent fixed blade strips 472. Moreover, each fixed blade strip 472 has a tapered portion whose top end becomes thinner as it goes toward the top end side (i.e., the front side in the front-rear direction).

[0089] Here, in this embodiment, the tapered portion is formed so that the trimming height is 2.0 mm when the movable blade 46 is located closest to the root side of the fixed blade 47, and the trimming height is 0.8 mm when the movable blade 46 is located closest to the tip side of the fixed blade 47. And, by operating the trimming height adjustment dial 21, the trimming height can be set to a plurality of stages between 2.0 mm and 0.8 mm.

[0090] Specifically, the clipping height adjustment mechanism 20 includes a holding mechanism 23 capable of holding the dial 21 in stages. And, by holding the dial 21 in stages by the holding mechanism 23, the clipping height can be changed in stages.

[0091] In the present embodiment, the holding mechanism 23 includes: a holding spring 231 fixed to a fixing portion 1214 provided on the main body 11; and an engaged portion 232 formed on the back side of the dial 21 and capable of engaging with the holding spring 231. In addition, the dial 21 can rotate relative to the holding spring 231, and the engaged portion 232 formed on the back side of the dial 21 can also rotate relative to the holding spring 231. Moreover, when the dial 21 is rotated and the relative position of the holding spring 231 and the engaged portion 232 reaches a predetermined position, the holding spring 231 and the engaged portion 232 are disengaged, thereby preventing the dial 21 from rotating in both directions.

[0092] Specifically, the engaged portion 232 is formed into a shape including an arc centered on the rotation axis C1. In addition, a plurality of engaging recesses 2321 (i.e., an example of a recess) that are recessed toward the rotation axis C1 are formed at equal intervals along the circumferential direction on the circumferential surface of the engaged portion 232. On the other hand, an engaging protrusion 2311 (i.e., an example of a protrusion) that protrudes toward the circumferential surface of the engaged portion 232 and engages with the engaging recess 2321 of the engaged portion 232 is formed on the retaining spring 231.

[0093] As described above, in the present embodiment, the positions of the holding spring 231 and the engaged portion 232 in a state where any one of the seven engaging recesses 2321 faces the engaging protrusion 2311 are set to the above-mentioned predetermined positions.

[0094] Alternatively, the trimming height may be continuously changed between 2.0 mm and 0.8 mm. The upper and lower limits of the trimming height may also be appropriately set. Furthermore, when the trimming height is changed in stages, any number of stages may be used, and there is no need to set the number to 7 stages, as long as the number is more than two stages.

[0095] The above-mentioned trimming height adjustment mechanism 20 is only an example, and any other conventionally known trimming height adjustment mechanism may be used as long as it is a structure that slides the movable blade 46 in the front-rear direction relative to the fixed blade 47 in accordance with the user's operation.

[0096] As described above, in this embodiment, when the dial 21 is rotated counterclockwise, the switching lever 44 is rotated toward the upright posture side against the urging force of the push-up spring 43 , and a larger load is required when the dial 21 is rotated counterclockwise than when the dial 21 is rotated clockwise.

[0097] Therefore, in this embodiment, the pin 22121 is urged toward the other end 2211b by the coil spring 2214 in the groove 2211. By doing so, the load required when rotating the dial 21 counterclockwise is reduced.

[0098] However, even if the coil spring 2214 is provided, the load required for rotating the dial 21 counterclockwise and clockwise is different. Therefore, in the structure of the conventional trimming height adjustment mechanism 20, it is difficult to further improve the operability of the dial 21.

[0099] Therefore, in the present embodiment, the operability of the dial 21 can be further improved.

[0100] Specifically, the trimming height adjustment mechanism 20 includes a holding mechanism 23 capable of holding the dial 21 in stages, and the holding mechanism 23 includes a releasably engaged engagement recess 2321 (i.e., an example of a recess) and an engagement protrusion 2311 (i.e., an example of a protrusion). Furthermore, at least one of the engagement recess 2321 (i.e., an example of a recess) and the engagement protrusion 2311 (i.e., an example of a protrusion) has a special-shaped engagement portion 233 having different shapes on one side and the other side of the rotation direction of the dial 21.

[0101] In the present embodiment, the seven engaging recesses 2321 (ie, an example of recesses) formed in the dial 21 are provided as the deformed engaging portions 233 having different shapes on one side and the other side in the rotation direction of the dial 21 .

[0102] Fig.17 2 is an enlarged view showing the engagement recess 2321 formed in the dial 21 of the embodiment. Fig.17 As shown, the engaging recess 2321 (i.e., an example of a recess) as the special-shaped engaging portion 233 has different inclination angles θ1 on one side and the other side in the rotation direction of the dial 21. In this embodiment, the difference between the load required when the dial 21 is rotated to one side and the load required when the dial 21 is rotated to the other side is smaller than when the shapes of the dial 21 on the one side and the other side in the rotation direction are the same. That is, the engaging recess 2321 (i.e., an example of a recess) is formed so that the inclination angle θ11 of the first inclined surface 23211 located on the side where the dial 21 is rotated so as to lower the trimming height is larger than the inclination angle θ12 of the second inclined surface 23212 located on the side where the dial 21 is rotated so as to increase the trimming height.

[0103] By doing so, the difference between the load required when rotating the dial 21 to one side and the load required when rotating the dial 21 to the other side becomes smaller, and the operability of the dial 21 can be further improved.

[0104] In addition, in the present embodiment, the first inclined surface 23111 located on one side and the second inclined surface 23112 located on the other side of the engaging protrusion 2311 (i.e., an example of a convex portion) are set to the same shape, but not only the engaging recessed portion 2321 (i.e., an example of a recessed portion), but also the engaging protrusion 2311 (i.e., an example of a convex portion) may have different inclination angles θ1. In addition, the shape of the engaging recessed portion 2321 (i.e., an example of a recessed portion) may be set to the same shape, and the inclination angles θ1 on both sides of the rotation direction of the engaging protrusion 2311 (i.e., an example of a convex portion) may be different.

[0105] In this way, the difference between the load required when rotating the dial 21 to one side and the load required when rotating the dial 21 to the other side can be reduced simply by making the inclination angle θ1 different, so the load of the dial 21 can be set more easily.

[0106] Furthermore, the load required when rotating the dial 21 to one side and the load required when rotating the dial 21 to the other side can be set to be substantially the same. If the operating force of the dial 21 when increasing the trimming height and the operating force of the dial 21 when decreasing the trimming height are set to be substantially the same, the operability of the dial 21 can be further improved.

[0107] Fig.18 2 is a diagram showing a first modified example of the engagement recess 2321 and the engagement protrusion 2311 of the trimmer 10 of the embodiment. Fig.18 As shown, by making the span height H1 different between one side and the other side in the rotation direction of the dial 21 , the engaging recess 2321 (ie, an example of a recess) becomes a special-shaped engaging portion 233 .

[0108] For example, it could be, Fig.18 As shown in FIG. 1 , the engagement recess 2321 (i.e., an example of a recess) is formed so that the span height H11 on the side where the dial 21 is rotated so as to lower the trimming height is lower than the span height H12 on the side where the dial 21 is rotated so as to increase the trimming height. In this case, the height from the top of the engagement protrusion 2311 (i.e., an example of a protrusion) to the base ends on both sides in the rotation direction is the respective span height H1.

[0109] By doing so, the difference between the load required when the dial 21 is turned to one side and the load required when the dial 21 is turned to the other side can be reduced simply by making the crossing height H1 different, so the load of the dial 21 can be set more easily.

[0110] Furthermore, the load required when rotating the dial 21 to one side and the load required when rotating the dial 21 to the other side can be set to be substantially the same. If the operating force of the dial 21 when increasing the trimming height and the operating force of the dial 21 when decreasing the trimming height are set to be substantially the same, the operability of the dial 21 can be further improved.

[0111] In addition, Fig.18 In the embodiment, the first inclined surface 23111 on one side and the second inclined surface 23112 on the other side of the engaging protrusion 2311 (i.e., an example of a convex portion) are set to the same shape, but not only the engaging recessed portion 2321 (i.e., an example of a recessed portion) but also the engaging protrusion 2311 (i.e., an example of a convex portion) may have different span heights H1. In addition, the shape of the engaging recessed portion 2321 (i.e., an example of a recessed portion) may be set to the same shape, and the span heights H1 on both sides of the rotating direction of the engaging protrusion 2311 (i.e., an example of a convex portion) may be different.

[0112] Fig.19 It is a diagram showing a second modified example of the engaging recessed portion 2321 and the engaging protruding portion 2311 included in the trimmer 10 according to the embodiment. Fig. 20 2 is a diagram showing a third modified example of the engagement recess 2321 and the engagement protrusion 2311 of the trimmer 10 of the embodiment. Fig.19 and Fig. 20 As shown, the engaging recessed portion 2321 (ie, an example of a recessed portion) and the engaging protruding portion 2311 (ie, an example of a protruding portion) are formed by curved surfaces.

[0113] Moreover, in this case, it is also possible to Fig.19 As shown, the inclination angle θ1 of the engagement recess 2321 (ie, an example of the recess) is made different on both sides of the rotation direction to reduce the difference between the load required when rotating the dial 21 to one side and the load required when rotating the dial 21 to the other side.

[0114] When the engagement recess 2321 (i.e., an example of a recess) is formed by a curved surface, the tangents (i.e., a tangent L1 on one side and a tangent L2 on the other side) passing through the contact points (i.e., a contact point P1 on one side and a contact point P2 on the other side) of the engagement recess 2321 (i.e., an example of a recess) and the engagement projection 2311 (i.e., an example of a projection) may be different in inclination angle θ1 (i.e., an inclination angle θ11 on one side and an inclination angle θ12 on the other side). That is, the engagement recess 2321 (i.e., an example of a recess) may be formed so that the inclination angle θ11 of the tangent L1 on the side where the dial 21 is rotated so as to lower the trimming height is larger than the inclination angle θ12 of the tangent L2 on the side where the dial 21 is rotated so as to increase the trimming height.

[0115] In addition, if Fig. 20 As shown, by making the span height H1 of the engagement recess 2321 (ie, an example of the recess) different on both sides in the rotation direction, the difference between the load required when rotating the dial 21 to one side and the load required when rotating the dial 21 to the other side can be reduced.

[0116] In this case, Fig.18 Similarly, the height from the top of the engagement protrusion 2311 (ie, an example of a convex portion) to the base ends on both sides in the rotation direction is the respective span height H1.

[0117] In addition, Fig.19 In the embodiment, the first inclined surface 23111 on one side and the second inclined surface 23112 on the other side of the engaging protrusion 2311 (i.e., an example of a convex portion) are set to the same shape, but not only the engaging recess 2321 (i.e., an example of a recess) but also the engaging protrusion 2311 (i.e., an example of a convex portion) can have different inclination angles θ1. In addition, the shape of the engaging recess 2321 (i.e., an example of a recess) can be set to the same shape, and the inclination angles θ1 on both sides of the rotation direction of the engaging protrusion 2311 (i.e., an example of a convex portion) can be different.

[0118] In addition, Fig. 20 In the embodiment, the first inclined surface 23111 on one side and the second inclined surface 23112 on the other side of the engaging protrusion 2311 (i.e., an example of a convex portion) are set to the same shape, but not only the engaging recessed portion 2321 (i.e., an example of a recessed portion) but also the engaging protrusion 2311 (i.e., an example of a convex portion) may have different span heights H1. In addition, the shape of the engaging recessed portion 2321 (i.e., an example of a recessed portion) may be set to the same shape, and the span heights H1 on both sides of the rotating direction of the engaging protrusion 2311 (i.e., an example of a convex portion) may be different.

[0119] Alternatively, the special-shaped engaging portion 233 may be formed by making the shapes of the one side and the other side of the rotation direction of the dial 21 different in such a manner that the difference between the load required when rotating the dial 21 to one side and the load required when rotating the dial 21 to the other side becomes larger than when the shapes of the one side and the other side of the rotation direction of the dial 21 are the same.

[0120] Such a special-shaped engaging portion 233 can be applied Figures 17 to 20 The shape shown is formed.

[0121] By increasing the difference between the load required when the dial 21 is turned to one side and the load required when the dial 21 is turned to the other side in this way, the load required when the dial 21 is turned to one side and the load required when the dial 21 is turned to the other side can be set to more clearly different loads. Therefore, without visually observing the scale or the like, it is possible to recognize whether the dial 21 is operated so as to increase the trimming height or to decrease the trimming height simply by operating the dial 21.

[0122] By making it possible to recognize the movement direction of the dial 21 without visual observation and only by operating the dial 21 in this way, the operability of the dial 21 can be further improved.

[0123] In addition, the dial 21 may be configured such that the shape of the portion touched by the finger is different. For example, the dial 21 may be configured such that there are portions where the height, width, etc. of the concave-convex portion 2121 are different. If this is done, the current trimming height can be identified before the dial 21 is turned. However, in order to be able to identify the difference from other portions simply by touching with a finger, it is preferred that only the shape at the representative trimming height is different, and the shape is not changed at all trimming heights. For example, it is preferred that the shape at the highest trimming height, the shape at the lowest trimming height, and the shape at the median trimming height are different from each other. If this is done, it is possible to more clearly identify whether it is the representative trimming height state simply by touching the dial 21.

[0124] Furthermore, by adopting such a dial 21 , the operability of the dial 21 can be further improved.

[0125] In addition, in the present embodiment, a cover 30 is provided on the main body 11 to cover a part of the dial 21 in a state where the rotation of the dial 21 is allowed. If such a cover 30 is provided on the main body 11, it is possible to suppress the situation where the dial 21 is operated erroneously when the trimmer 10 (i.e., an example of a cutting device) is used, but it is preferable to suppress the erroneous operation of the dial 21 more reliably.

[0126] Therefore, in the present embodiment, it is possible to more reliably suppress erroneous operation of the dial 21 . Fig.21 1 is a perspective view showing an enlarged view of the cover 30 of the trimmer 10 according to the embodiment. Fig.21 and Fig. 22 As shown, the grip portion side of the dial 21 mounted between the grip portion 11 a of the main body 11 and the blade portion 45 is covered with a cover 30 .

[0127] By doing so, when the trimmer 10 (i.e., an example of a cutting device) is used by holding the grip 11a, the cover 30 can prevent the finger from contacting the dial 21. That is, when the trimmer 10 (i.e., an example of a cutting device) is used by holding the grip 11a, the finger can be prevented from contacting the dial 21.

[0128] In this embodiment, the cover 30 includes a top wall 31 covering the top surface 211 a of the dial 21 , a peripheral wall 32 covering the peripheral surface 212 a on the grip side of the dial 21 , and a connecting wall 33 connecting the top wall 31 and the peripheral wall 32 .

[0129] Furthermore, a locking piece 34 is continuously provided at the other end of the peripheral wall 32 , and a slit 1213 into which the locking piece 34 is inserted is formed in the main body 11 . Fig.31 It is magnified Figure 4 Figure C of the diagram. Fig. 22 and Fig.31 As shown, when the cover 30 is mounted on the main body 11, the locking piece 34 is inserted into the slit 1213 formed in the main body 11, and the locking hook 341 formed on the locking piece 34 is locked with the locked portion 1215 formed on the main body.

[0130] By doing so, the grip portion side of the peripheral surface 212 a of the dial 21 is covered by the peripheral wall 32 of the cover 30 .

[0131] In this embodiment, the slit 1213 is formed on the gripping portion side of the dial arrangement portion 121 along the circumferential direction, and the locked portion 1215 is formed on the gripping portion side inside the slit 1213. In this way, the slit 1213 is covered by the cover 30.

[0132] Furthermore, in the present embodiment, the cover 30 has a plurality of surfaces (e.g., a top surface 31a, a peripheral surface 32a, a connecting surface 33a, etc.). In addition, the cover having a plurality of surfaces means that there are two or more surfaces on the surface of the cover that are different in at least any one of the normal direction, the curvature, and the curvature form of the curved surface (e.g., a concave curved surface or a convex curved surface). In the present embodiment, the surface of the cover 30 is formed by a plurality of different types of surfaces, such as the top surface 31a which is a flat surface whose normal direction is the direction of the rotation axis C1, the peripheral surface 32a which is a convex curved surface, and the connecting surface 33a whose curvature is different from that of the peripheral surface 32a. Furthermore, in the present embodiment, by making the surface of the cover 30 a shape formed by combining such a plurality of different types of surfaces, the trimmer 10 (i.e., an example of a cutting device) can be used in a variety of holding methods while preventing erroneous operation of the dial 21.

[0133] Fig.23 1 is a diagram showing an example of a method of holding the trimmer 10 according to the embodiment. Fig.23 The method shown is to hold the trimmer 10 (i.e., an example of a cutting device). Fig.23 2 shows a holding method in which the thumb F1 is placed on the top surface 31a with the tip hooked on the protrusion 312 and the holding portion 11a is held with other fingers (index finger F2, middle finger F3, ring finger F4 and little finger F5).

[0134] In addition, the protrusion 312 is formed at the top end of the top wall 31 on the blade portion 45 side so as to protrude in a direction away from the dial 21. Therefore, if the thumb F1 is placed on the top surface 31a with the top end hooked on the protrusion 312, the thumb F1 placed on the cover 30 can be more reliably prevented from sliding toward the blade portion 45 side, and erroneous operation of the dial 21 can be more reliably prevented.

[0135] Furthermore, the surface 312a of the protrusion 312 on the grip 11a side is formed as a concave surface. This allows the trimmer 10 (i.e., an example of a cutting device) to be used with a finger (e.g., thumb F1) pressed against the surface 312a (i.e., concave surface) on the grip 11a side of the protrusion 312, thereby further improving the ease of use of the trimmer 10 (i.e., an example of a cutting device).

[0136] Even when the trimmer 10 (ie, an example of a cutting device) is held in such a manner, the trimmer 10 (ie, an example of a cutting device) can be used while preventing erroneous operation of the dial 21 .

[0137] Fig.24 FIG. 1 is a diagram showing a first variation of a method of holding the trimmer 10 of the embodiment. Fig.24The method shown is to hold the trimmer 10 (i.e., an example of a cutting device). Fig.24 2 shows a holding method in which the connecting surface 33a is pressed with the thumb F1 and the holding portion 11a is held with other fingers (index finger F2, middle finger F3, ring finger F4, little finger F5).

[0138] Even when the trimmer 10 (ie, an example of a cutting device) is held in such a manner, the trimmer 10 (ie, an example of a cutting device) can be used while preventing erroneous operation of the dial 21 .

[0139] In addition, the connecting surface 33a of the connecting wall 33 is a convex surface, which can further reduce the stimulation applied to the finger from the connecting wall 33 when the finger is placed on the connecting surface 33a of the connecting wall 33 for use or when the finger contacts the connecting surface 33a of the connecting wall 33. Fig.24 When the trimmer 10 (ie, an example of a cutting device) is held in the manner shown, it is also possible to use the trimmer 10 for a longer period of time.

[0140] Fig.25 FIG. 2 is a diagram showing a second variation of the method of holding the trimmer 10 of the embodiment. Fig.25 The method shown is to hold the trimmer 10 (i.e., an example of a cutting device). Fig.25 3 shows a holding method in which the peripheral surface 32a is pressed with the tip of the thumb F1 and the holding portion 11a is held with other fingers (index finger F2, middle finger F3, ring finger F4, little finger F5).

[0141] Even when the trimmer 10 (ie, an example of a cutting device) is held in such a manner, the trimmer 10 (ie, an example of a cutting device) can be used while preventing erroneous operation of the dial 21 .

[0142] Fig.26 FIG. 3 is a diagram showing a third modified example of a method of holding the trimmer 10 of the embodiment. Fig.26 The method shown is to hold the trimmer 10 (i.e., an example of a cutting device). Fig.26 3 shows a holding method in which the side of the thumb F1 is placed against the peripheral surface 32a and the holding portion 11a is held with other fingers (index finger F2, middle finger F3, ring finger F4, and little finger F5).

[0143] Even when the trimmer 10 (ie, an example of a cutting device) is held in such a manner, the trimmer 10 (ie, an example of a cutting device) can be used while preventing erroneous operation of the dial 21 .

[0144] Fig. 27FIG. 4 is a diagram showing a fourth variation of the method of holding the trimmer 10 of the embodiment. Fig. 27 The method shown is to hold the trimmer 10 (i.e., an example of a cutting device). Fig. 27 2 shows a holding method in which the top surface 31 a is pressed with the index finger F2 and the holding portion 11 a is gripped with other fingers (the thumb F1 , the middle finger F3 , the ring finger F4 , and the little finger F5 ).

[0145] Even when the trimmer 10 (ie, an example of a cutting device) is held in such a manner, the trimmer 10 (ie, an example of a cutting device) can be used while preventing erroneous operation of the dial 21 .

[0146] Fig.28 FIG. 5 is a diagram showing a fifth variation of the method of holding the trimmer 10 of the embodiment. Fig.28 The method shown is to hold the trimmer 10 (i.e., an example of a cutting device). Fig.28 3 shows a holding method in which the side of the little finger F5 is placed against the peripheral surface 32a and the holding portion 11a is held with other fingers (thumb F1, index finger F2, middle finger F3, and ring finger F4).

[0147] Even when the trimmer 10 (ie, an example of a cutting device) is held in such a manner, the trimmer 10 (ie, an example of a cutting device) can be used while preventing erroneous operation of the dial 21 .

[0148] Fig.29 FIG. 6 is a diagram showing a sixth variation of the method of holding the trimmer 10 of the embodiment. Fig.29 The method shown is to hold the trimmer 10 (i.e., an example of a cutting device). Fig.29 2 shows a holding method in which the side of the index finger F2 is placed against the peripheral surface 32a and the holding portion 11a is held with other fingers (thumb F1, middle finger F3, ring finger F4, and little finger F5).

[0149] Even when the trimmer 10 (ie, an example of a cutting device) is held in such a manner, the trimmer 10 (ie, an example of a cutting device) can be used while preventing erroneous operation of the dial 21 .

[0150] Thus, in this embodiment, even when the trimmer 10 (ie, an example of a cutting device) is held differently, it is possible to more reliably suppress the situation where the dial 21 is erroneously operated when using the trimmer 10 (ie, an example of a cutting device).

[0151] In addition, by covering the gripping portion side of the dial 21 with the cover 30, when the gripping method is changed from not placing the fingers on the cover 30 when using it to placing the fingers on the cover 30, etc., when the gripping method is changed when using the trimmer 10 (i.e., an example of a cutting device), it is also possible to prevent the fingers from coming into contact with the dial 21.

[0152] Therefore, the method of holding the trimmer 10 (ie, an example of a cutting device) can be changed while suppressing erroneous operation of the dial 21 .

[0153] As described above, the trimmer 10 (ie, an example of a cutting device) according to the present embodiment is a device that is more convenient to use.

[0154] In addition, the holding method of the trimmer 10 (ie, an example of a cutting device) is not limited to Figure 23 to Figure 29 The trimmer 10 (i.e., an example of a cutting device) can be held in various ways. For example, the trimmer 10 (i.e., an example of a cutting device) can be held with both hands. In such a holding method, the trimmer 10 (i.e., an example of a cutting device) can be used while preventing the dial 21 from being misoperated.

[0155] In addition, in this embodiment, an anti-slip portion is formed on the cover 30. Specifically, a protrusion 312 is provided at the tip of the top wall 31 on the blade portion 45 side, and the protrusion 312 has an anti-slip function.

[0156] By doing so, when using the trimmer 10 (ie, an example of a cutting device), it is possible to more reliably suppress the fingers placed on the cover 30 from slipping, and it is possible to more reliably suppress erroneous operation of the dial 21 caused by the fingers placed on the cover 30 from slipping.

[0157] In addition, the cover 30 may have an anti-slip function by providing a concavo-convex shape on the surface, or may have an anti-slip function by providing rubber on the surface side of the cover 30. The concavo-convex shape on the surface of the cover 30 may be formed, for example, by embossing or knurling. In addition, as the concavo-convex shape, for example, a dot shape, a top protrusion shape (more specifically, the protrusion 312 of this embodiment), etc. can be cited.

[0158] Furthermore, in the present embodiment, the width of the peripheral wall 32 is wider than the width of the top wall 31 .

[0159] By doing so, it is possible to minimize the reduction in the exposed area of ​​the dial 21 and more reliably suppress the contact between the finger holding the grip 11a and the finger placed on the cover 30 and the dial 21. In other words, it is possible to suppress the decrease in the operability of the dial 21 and prevent erroneous operation of the dial 21 when using the trimmer 10 (i.e., an example of a cutting device).

[0160] In particular, in the present embodiment, the width of the top wall 31 is narrower at a position farther from the grip 11a. By doing so, the exposed area of ​​the portion of the dial 21 closer to the grip 11a can be reduced and the exposed area of ​​the portion of the dial 21 farther from the grip 11a can be increased. That is, the state of the dial 21 is such that the portion that is easier for the finger to touch when the grip 11a is held is covered with the cover 30 and the portion that is harder for the finger to touch is exposed as much as possible. By doing so, it is possible to more reliably suppress the situation where the operability of the dial 21 is reduced and more reliably prevent the dial 21 from being misoperated when the trimmer 10 (i.e., an example of a cutting device) is used.

[0161] In addition, in the present embodiment, as described above, a predetermined gap S1 is formed between the tip of the protrusion 2122 of the peripheral wall 212 and the surface 121a of the dial arrangement portion 121. Therefore, when the trimmer 10 (i.e., an example of a cutting device) is used, hair scraps H (i.e., an example of cuttings) may enter the dial 21 through the gap S1.

[0162] If the hair shavings H (i.e., an example of cuttings) enter the dial 21, the rotation operation of the dial 21 may be hindered by the hair shavings H (i.e., an example of cuttings) or the hair shavings H (i.e., an example of cuttings) may be entangled in the spring (more specifically, the push-up spring 43) that applies force to the movable blade 46, and the trimming height adjustment mechanism 20 may no longer function.

[0163] Therefore, in the present embodiment, it is possible to more reliably suppress the hair scraps H (ie, an example of cutting chips) from entering the gap formed between the dial 21 and the main body 11 .

[0164] Fig.30 It is magnified Figure 4 Specifically, Fig.30 As shown, a rib 1212 is formed on the main body 11 , and the rib 1212 is opposed to a gap S1 formed between the dial 21 and the main body 11 in the radial direction of the dial 21 .

[0165] By doing so, it is possible to more reliably suppress the situation where hair scraps H (i.e., an example of cuttings) and the like enter the inner side of the dial 21 from the gap S1 formed between the dial 21 and the main body 11. If the hair scraps H (i.e., an example of cuttings) and the like can be suppressed from entering the inner side of the dial 21, it is possible to more reliably suppress the situation where the hair scraps H (i.e., an example of cuttings) and the like entering the inner side of the dial 21 hinder the rotation of the dial 21 and the adjustment of the trimming height. As a result, the trimming height can be adjusted for a longer period of time by operating the dial 21, and the life of the trimming height adjustment function realized by operating the dial 21 can be extended.

[0166] In addition, in the present embodiment, the rib 1212 is provided at a position on the inner peripheral side of the protrusion 2122 , but the rib 1212 may be provided at a position on the outer peripheral side of the protrusion 2122 .

[0167] In the present embodiment, the rib 1212 has a portion overlapping the dial 21 in the radial direction of the dial 21. That is, the rib 1212 is formed so as to overlap the dial 21 (more specifically, the peripheral wall 212) at least partially (more specifically, a portion of the tip side) when viewed along the radial direction of the dial 21.

[0168] By doing so, it is possible to achieve a structure in which hair scraps H (i.e., an example of cuttings) and the like cannot enter the inner side of the dial 21 simply by moving in the radial direction of the dial 21, and it is possible to further reliably suppress the hair scraps H (i.e., an example of cuttings) and the like from entering the inner side of the dial 21 through the gap S1 formed between the dial 21 and the main body 11.

[0169] The rib 1212 is formed in an annular shape centered on the rotation axis C1. That is, the rib 1212 is formed over the entire circumference around the rotation axis C1.

[0170] By doing so, no matter where the hair scraps H (ie, an example of cuttings) or the like exist around the dial 21 , the ribs 1212 can suppress the hair scraps H (ie, an example of cuttings) or the like from entering the inner side of the dial 21 .

[0171] Furthermore, if the dial 21 is operated in a state where hair scraps H (i.e., an example of cuttings) etc. exist around the dial 21, the hair scraps H (i.e., an example of cuttings) etc. may move around the dial 21 as the dial 21 is rotated, but in such a case, the hair scraps H (i.e., an example of cuttings) etc. can be prevented from entering the inner side of the dial 21 by the ribs 1212 regardless of where the hair scraps H (i.e., an example of cuttings) etc. move. That is, if the ribs 1212 are formed over the entire circumference, even if the dial 21 is rotated in a state where hair scraps H (i.e., an example of cuttings) etc. exist around the dial 21, the hair scraps H (i.e., an example of cuttings) etc. can be prevented from entering the inner side of the dial 21.

[0172] If this is done, for example, when using the trimmer 10 (i.e., an example of a cutting device), even if the dial 21 is operated to change the trimming height without shaking off the hair shavings H (i.e., an example of cutting chips) and the like attached near the dial 21, it is possible to prevent the hair shavings H (i.e., an example of cutting chips) and the like from entering the inside of the dial 21.

[0173] Thus, in this embodiment, the ribs 1212 are formed throughout the entire circumference, so that when the trimming height is changed at various times, hair shavings H (i.e., an example of cutting chips) and the like can be prevented from entering the inner side of the dial 21, which can further improve the ease of use of the trimmer 10 (i.e., an example of a cutting device).

[0174] Furthermore, in the present embodiment, the rib 1212 extends in a direction along the rotation axis C1 of the dial 21 .

[0175] By doing so, the rib 1212 is made more difficult to cross, and it is possible to more reliably prevent hair scraps H (ie, an example of cutting chips) and the like from crossing the rib 1212 and entering the inner side of the dial 21 .

[0176] In addition, in the present embodiment, the dial 21 has a dial side rib 2123. This allows the path drawn by the hair scraps H (i.e., an example of cuttings) etc. when entering the inner side of the dial 21 to be more complicated, and the entry path S2 formed between the gap S1 and the inner side of the dial 21 to be a structure that is more difficult to move (a structure that is more difficult to enter). This can more reliably prevent the hair scraps H (i.e., an example of cuttings) etc. from crossing the rib 1212 and entering the inner side of the dial 21.

[0177] In this embodiment, the dial side rib 2123 includes a first dial side rib 21231 located on the outer circumference side and a second dial side rib 21232 located on the inner circumference side. That is, at least one of the ribs 1212 and the dial side ribs 2123 is formed in multiple layers in the radial direction of the dial 21.

[0178] By doing so, the path drawn by the hair scraps H (i.e., an example of cuttings) etc. when entering the inner side of the dial 21 becomes a more complex shape. Specifically, the curved entry path S2 is formed by forming the rib 1212 between the first dial side rib 21231 and the second dial side rib 21232. By doing so, the entry path S2 formed between the gap S1 and the inner side of the dial 21 becomes a structure that is further difficult to move (i.e., a structure that is further difficult to enter), so it is possible to more reliably suppress the hair scraps H (i.e., an example of cuttings) etc. from crossing the rib 1212 and entering the inner side of the dial 21.

[0179] In the present embodiment, the dial 21 side has a plurality of ribs, but the main body 11 side may have a plurality of ribs, or both the dial 21 side and the main body 11 side may have a plurality of ribs.

[0180] Furthermore, in the present embodiment, the length D2 of the rib 1212 in the direction along the rotation axis C1 of the dial 21 is longer than the length D1 from the rib 1212 to the dial 21 in the radial direction of the dial 21 .

[0181] By doing so, the following structure is achieved: unless the hair scraps H (i.e., an example of cuttings) and the like are moved at an angle of 45 degrees or more or a plurality of hair scraps H (i.e., an example of cuttings) and the like are accumulated while maintaining an angle of 45 degrees or more, the hair scraps H (i.e., an example of cuttings) and the like cannot cross the rib 1212. In other words, the hair scraps H (i.e., an example of cuttings) and the like are less likely to cross the rib 1212 and enter the inner side of the dial 21. By doing so, the hair scraps H (i.e., an example of cuttings) and the like can be more reliably prevented from crossing the rib 1212 and entering the inner side of the dial 21.

[0182] In addition, considering the operability of the dial 21, the radial length D1 is preferably 0.3 mm or more. However, if the radial length D1 becomes larger, hair scraps H (i.e., an example of cuttings) and the like are likely to enter the inner side of the dial 21. Therefore, in the present embodiment, the radial length D1 is set to a size of 0.5 mm to ensure operability and obtain an effect of preventing hair scraps from entering. In the case of the trimmer 10 for cutting hair in this way, the radial length D1 is preferably set to a range of 0.3 mm or more and 0.5 mm or less.

[0183] In addition, in this embodiment, an inclined surface (more specifically, a chamfer) is formed on the outer side of the upper portion of the rib 1212, and the height of the outer vertical surface is 0.5 mm, and the overall height of the rib 1212 (that is, the height of the inner vertical surface) is 1.0 mm. That is, the length D2 of the rib 1212 in the direction along the rotation axis C1 of the dial 21 is 1.0 mm.

[0184] Thus, in this embodiment, the length D2 of the rib 1212 in the direction along the rotation axis C1 of the dial 21 is twice the length D1 in the radial direction of the dial 21 from the gap S1 formed between the dial 21 and the body 11 to the rib 1212 .

[0185] In addition, if Fig.31 As shown, in the present embodiment, an opening S3a is formed at a position closer to the outer periphery of the main body 11 than the rib 1212, and the opening S3a is connected to a storage space S3 formed in the main body 11 and capable of storing hair scraps H (i.e., an example of cuttings) etc. In addition, in the present embodiment, the storage space S3 is divided by a partition wall 19 arranged inside the housing 12.

[0186] By doing so, hair scraps H (an example of cuttings) and the like adhering to the vicinity of the dial 21 are actively stored in the storage space S3 , so that the hair scraps H (an example of cuttings) and the like can be more reliably prevented from entering the dial 21 .

[0187] In addition, in the present embodiment, as described above, the trimmer 10 (i.e., an example of a cutting device) includes the cover 30 that covers a portion of the dial 21 in a state that allows the dial 21 to rotate. Therefore, the back side of the cover 30 becomes a portion where hair scraps H (i.e., an example of cuttings) and the like are easily accumulated. If a large amount of hair scraps H (i.e., an example of cuttings) and the like are accumulated on the back side of the cover 30, the hair scraps H (i.e., an example of cuttings) and the like on the back side of the cover 30 are likely to enter the inner side of the dial 21.

[0188] Therefore, in the present embodiment, the opening S3 a is covered by the cover 30 when viewed along the rotation axis C1 of the dial 21 .

[0189] Since the opening S3a connected to the storage space S3 is provided on the back side of the cover 30, which is a location where hair scraps H (i.e., an example of cuttings) and the like are easily accumulated, hair scraps H (i.e., an example of cuttings) and the like accumulated in a location that is difficult to shake off can be stored in the storage space S3. In addition, in the present embodiment, the slit 1213 formed to mount the cover 30 on the main body 11 is used as the storage space S3.

[0190] Furthermore, when the trimmer 10 (i.e., an example of a cutting device) is used, the hair scraps H (i.e., an example of cuttings) and the like accumulated on the back side can be actively stored in the storage space S3 by pressing the cover 30 with a finger or the like. By doing so, it is possible to suppress a situation where a large amount of hair scraps H (i.e., an example of cuttings) and the like are stored on the back side of the cover 30, and it is possible to further reliably suppress a situation where the hair scraps H (i.e., an example of cuttings) and the like existing on the back side of the cover 30, which is a location where the hair scraps H (i.e., an example of cuttings) and the like are easily stored, enter the inner side of the dial 21.

[0191] Furthermore, if the opening S3 a communicating with the storage space S3 is covered with the cover 30 , the appearance of the trimmer 10 (ie, an example of a cutting device) can be further improved.

[0192] [Function, Effect]

[0193] Hereinafter, characteristic structures of the cutting devices shown in the above-mentioned embodiment and its modified examples and effects obtained thereby will be described.

[0194] (Technology 1) The trimmer 10 (i.e., an example of a cutting device) shown in the above-mentioned embodiment and its modified example includes: a main body 11, which has a gripping portion 11a; and a blade portion 45, which has a fixed blade 47 fixed to the main body 11 and a movable blade 46 that can reciprocate and slide relative to the fixed blade 47.

[0195] The trimmer 10 (ie, an example of a cutting device) includes a dial 21 rotatably mounted on the main body 11 and operated when adjusting the trimming height, and a cover 30 covering a portion of the dial 21 to allow the dial 21 to rotate.

[0196] Furthermore, the dial 21 is attached between the grip portion 11 a of the main body 11 and the blade portion 45 , and the cover 30 covers the grip portion side of the dial 21 .

[0197] Thus, the trimmer 10 (i.e., an example of a cutting device) shown in the above embodiment and its modified example has a dial 21 that is operated when adjusting the trimming height. In addition, the cover 30 that covers a part of the dial 21 in a state that allows the dial 21 to rotate covers the grip side of the dial 21.

[0198] With this configuration, when the trimmer 10 (i.e., an example of a cutting device) is used by holding the grip 11a, the cover 30 can prevent the finger from contacting the dial 21. That is, when the trimmer 10 (i.e., an example of a cutting device) is used by holding the grip 11a, it is possible to suppress the finger from contacting the dial 21. As a result, it is possible to more reliably prevent the dial 21 from being accidentally rotated when the trimmer 10 (i.e., an example of a cutting device) is used.

[0199] With the trimmer 10 (ie, an example of a cutting device) described in the above embodiment and its modified example, it is possible to more reliably suppress erroneous operation of the dial 21 when using the trimmer 10 (ie, an example of a cutting device).

[0200] Furthermore, if it is set as the trimmer 10 shown in the above-mentioned embodiment and its modified example (i.e., an example of a cutting device), whether it is used with a finger placed on the cover 30 (i.e., the cover 30 is used as a finger placement portion) or not, it is possible to prevent erroneous operation of the dial 21 caused by contact between the finger and the dial 21 when using the trimmer 10 (i.e., an example of a cutting device).

[0201] Therefore, if it is set as the trimmer 10 (i.e., an example of a cutting device) shown in the above-mentioned embodiment and its modified examples, even if the method of holding the trimmer 10 (i.e., an example of a cutting device) is different, it is possible to more reliably suppress the situation of erroneous operation of the dial 21 when using the trimmer 10 (i.e., an example of a cutting device).

[0202] In addition, if the cover 30 covers the gripping side of the dial 21, when the gripping method is changed by placing the fingers on the cover 30 when using the trimmer 10 (i.e., an example of a cutting device) without placing the fingers on the cover 30, it is also possible to prevent the fingers from coming into contact with the dial 21.

[0203] Therefore, with the trimmer 10 (ie, an example of a cutting device) described in the above-described embodiment and its modified example, it is also possible to change the holding method while suppressing erroneous operation of the dial 21 .

[0204] (Technique 2) In addition, in the above (Technique 1), the cover 30 may have a plurality of surfaces (for example, the top surface 31a, the peripheral surface 32a, the connecting surface 33a, etc.).

[0205] By doing so, even when the trimmer 10 (i.e., an example of a cutting device) is held with fingers placed at various locations of the cover 30, the trimmer 10 (i.e., an example of a cutting device) can be used while preventing erroneous operation of the dial 21. That is, the trimmer 10 (i.e., an example of a cutting device) can be used in various holding methods while preventing erroneous operation of the dial 21. As a result, the ease of use of the trimmer 10 (i.e., an example of a cutting device) can be further improved.

[0206] (Technique 3) In addition, in the above-mentioned (Technique 1) or (Technique 2), an anti-slip portion (for example, the protrusion 312 on the front end side, etc.) may be formed on the cover 30.

[0207] If so, when using the trimmer 10 (ie, an example of a cutting device), it is possible to more reliably suppress the situation where the finger placed on the cover 30 slips. As a result, it is possible to more reliably suppress the erroneous operation of the dial 21 caused by the sliding of the finger placed on the cover 30.

[0208] (Technique 4) In any one of the above-mentioned (Technique 1) to (Technique 3), the cover 30 may include: a top wall 31 that covers the top surface 211a of the dial 21; a peripheral wall 32 that covers the peripheral surface 212a on the grip side of the dial 21; and a connecting wall 33 that connects the top wall 31 and the peripheral wall 32. Furthermore, the peripheral wall 32 may be formed to be wider than the top wall 31.

[0209] By doing so, it is possible to minimize the reduction in the exposed area of ​​the dial 21 and more reliably suppress the contact between the finger holding the grip 11a and the finger placed on the cover 30 and the dial 21. That is, it is possible to suppress the decrease in the operability of the dial 21 and prevent erroneous operation of the dial 21 when using the trimmer 10 (i.e., an example of a cutting device).

[0210] In particular, if the width of the top wall 31 at a position far from the grip 11a is narrow, the exposed area of ​​the portion of the dial 21 near the grip 11a can be reduced and the exposed area of ​​the portion of the dial 21 far from the grip 11a can be increased. That is, the state of the dial 21 can be made such that the portion that is easy for the finger to touch when the grip 11a is held is covered with the cover 30 and the portion that is difficult for the finger to touch is exposed as much as possible. In this way, the operability of the dial 21 can be more reliably suppressed from being reduced and the erroneous operation of the dial 21 when the trimmer 10 (i.e., an example of a cutting device) is used can be more reliably prevented.

[0211] (Technique 5) In addition, in the above-mentioned (Technique 4), the connecting surface 33a of the connecting wall 33 may be a convex curved surface.

[0212] By doing so, when the finger is placed on the connecting surface 33a of the connecting wall 33 for use or when the finger contacts the connecting surface 33a of the connecting wall 33, the stimulation applied to the finger from the connecting wall 33 can be further reduced. As a result, the trimmer 10 (i.e., an example of a cutting device) can be used for a longer period of time, and the usability of the trimmer 10 (i.e., an example of a cutting device) can be further improved.

[0213] (Technology 6) In addition, in any one of the above-mentioned (Technology 1) to (Technology 5), the cover 30 may also include a top wall 31, which covers the top surface 211a of the dial 21, and a protrusion 312 protruding in a direction away from the dial 21 is formed at the top end of the blade portion 45 side of the top wall 31.

[0214] With this configuration, it is possible to more reliably suppress the finger placed on the cover 30 from sliding toward the blade portion 45 , and thus it is possible to more reliably suppress erroneous operation of the dial 21 .

[0215] (Technique 7) In addition, in the above-mentioned (Technique 6), the surface 312a of the protrusion 312 on the gripping portion 11a side may be a concave curved surface.

[0216] If this is done, the trimmer 10 (i.e., an example of a cutting device) can be used with a finger (e.g., thumb F1) in contact with the surface 312a (i.e., concave surface) on the gripping portion 11a side of the protrusion 312, which can further improve the ease of use of the trimmer 10 (i.e., an example of a cutting device).

[0217] [other]

[0218] As mentioned above, although the content of the cutting device of this indication was demonstrated, it is not limited to the above description, and it is obvious to a person skilled in the art that various deformation|transformation and improvement are possible.

[0219] For example, the present disclosure can be applied to embodiments in which the configurations described in the above-described embodiments and their modifications are modified, replaced, added, omitted, etc. In addition, each component described in the above-described embodiments and their modifications can be combined to form a new embodiment.

[0220] Furthermore, the specifications (shape, size, layout, etc.) of the main body, blade, and other detailed parts may be appropriately changed.

[0221] Industrial Applicability

[0222] As described above, the cutting device of the present disclosure can more reliably suppress erroneous operation of the dial during use, and is therefore not limited to hair processing, but can also be applied to processing various body hair of humans, animals, etc., cutting grass, branches, etc., and other uses.

Claims

1. A cutting device, wherein: The cutting device comprises: A main body having a handle; a blade portion having a fixed blade fixed to the main body portion and a movable blade capable of reciprocatingly sliding relative to the fixed blade; a dial rotatably mounted on the main body, the dial being operated when adjusting the trimming height; and a cover covering a portion of the dial in a state allowing the dial to rotate, The dial is installed between the holding portion of the main body and the blade portion. The cover covers the grip portion side of the dial.

2. The cutting device according to claim 1, wherein: The cover has multiple faces.

3. The cutting device according to claim 1 or 2, wherein: The cover is formed with an anti-slip portion.

4. The cutting device according to claim 1 or 2, wherein: The cover comprises: a top wall covering the top surface of the dial; a peripheral wall covering a peripheral surface of the dial on the gripping portion side; and a connecting wall connecting the top wall and the peripheral wall, The peripheral wall is formed to have a width wider than that of the top wall.

5. The cutting device according to claim 4, wherein: The connecting surface of the connecting wall is a convex curved surface.

6. The cutting device according to claim 1 or 2, wherein: The cover includes a top wall, which covers the top surface of the dial. A protrusion that protrudes in a direction away from the dial is formed at a top end of the top wall on the blade portion side.

7. The cutting device according to claim 6, wherein: The surface of the protrusion on the gripping portion side is a concave curved surface.

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