JP2010115315A - Hair clipper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To cut hair at a desired cutting height by a hair clipper. <P>SOLUTION: In the hair clipper, a number of fixed blade bodies 12a and movable blade bodies 13a are arranged parallel in comb-shaped fixed blade 12 and movable blade 13 respectively. The fixed blade 12 and movable blade 13 are layered on each other, and by sliding the movable blade 13 back and force relative to the fixed blade 12 in the direction of arrangement of the movable blade bodies 13a, hair introduced into blade grooves between the fixed blade bodies 12a can be cut. Each fixed blade body 12a has a rib 12b projecting sideways from a side surface of the fixed blade body 12a. The hair introduced into the blade grooves between the fixed blade bodies 12a abuts on the rib 12b, so that the contact area between the hair and the fixed blade body 12a is small. Since the frictional force between the hair and the rib 12 to act on the hair is small, the hair introduced into the blade grooves is hardly laid, so that the hair can be cut at the desired cutting height, or the length from the sliding surface between the movable blade 13 and fixed blade 12 to the lower end of the fixed blade 12. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a clipper that cuts hair by reciprocating a movable blade with respect to a fixed blade.

  Conventionally, a clipper has been known that cuts hair by reciprocatingly sliding a movable blade in the direction in which the blades are juxtaposed with each other, with a comb-shaped fixed blade and a movable blade stacked in parallel with each other. (For example, refer to Patent Document 1). 14 (a) and 14 (b) show such a conventional hair clipper blade block 80. FIG. The blade block 80 includes a fixed blade 82 having a plurality of blade bodies 82a, a movable blade 83 having a plurality of blade bodies 83a that are in sliding contact with the fixed blade 82, a fixed plate 84 that holds the fixed blade 82, and a movable blade 83. A guide plate 85 to be held and a pressing spring 86 for pressing the movable blade 83 against the fixed blade 82 are provided. In the movable blade 83, the driving force of the motor or the like of the clipper body (not shown) is transmitted to the guide plate 85, whereby the blade bodies 82a and 83a are arranged side by side (the direction indicated by the arrow X in FIG. 14A). ). The clipper can introduce hair into the blade groove between the blade bodies 82 a of the fixed blade 82, sandwich the hair between the fixed blade 82 and the movable blade 83, and cut the hair.

  This clipper has a cutting height adjusting mechanism. FIG. 15 shows the tip of the blade block 80. Each blade 82a of the fixed blade 82 has a dimension from the sliding contact surface to the lower end of the movable blade 83 of the fixed blade 82 as it approaches the base end from the blade edge (tip end of the blade) (FIG. 14B). ) Is indicated by a dimension line D) that gradually increases. The movable blade 83 is provided so that the position of the movable blade 83 relative to the fixed blade 82 can be changed from the base end side toward the cutting edge side, that is, the protruding direction of the blade body 82a. It is provided so that the position for cutting can be changed.

FIG. 16 shows the state of the hair H when the hair H is cut with a conventional hair clipper. When the hair clipper body is moved forward (in the direction of arrow F in the figure) so that the lower end portion of the fixed blade 82 is along the epidermis G where the hair H grows, the hair H is moved between the blade bodies 82a of the fixed blade 82. Introduced into the blade groove. When the hair H introduced between the blades 82a reaches the blade tips of the blades 83a of the movable blade 83, the hair H is sandwiched between the fixed blade 82 and the movable blade 83 and cut. At this time, the length (cutting height) of the hair H after cutting from the skin G is substantially the same as the height from the lower end of the fixed blade 82 to the vicinity of the cutting edge of the movable blade 83. In other words, the user can adjust the cutting height by changing the position of the movable blade 83 relative to the fixed blade 82.
JP 2008-80111 A

  By the way, in the conventional hair clipper, the hair H introduced into the blade groove of the fixed blade 82 contacts the side surface of each blade body 82 a of the fixed blade 82 before reaching the cutting edge portion of the movable blade 83. Thus, the hair H which has contacted the side surface of the blade body 82a is sometimes tilted in the traveling direction of the fixed blade 82 by the frictional force with the fixed blade 82, as shown in the figure. When the hair H is cut in a state of being tilted in this way, the cut height of the hair H after cutting is the height from the lower end of the fixed blade 82 to the vicinity of the cutting edge of the movable blade 83, that is, the user's Since it becomes longer than the desired cutting height, the length of the hair H becomes uneven. This problem is caused by the hair clipper having the trimming height adjusting mechanism as described above and the length of the fixed blade 82 being relatively long, and the distance between the cutting edge portion of the movable blade 83 and the cutting edge portion of the fixed blade 82 is increased. Since the amount of H falling increases, it becomes more prominent. Note that the above problem can also occur in a clipper in which the movable blade 82 is not displaced from the base end side to the blade tip side.

  The present invention has been made in view of the above problems, and can reduce the frictional force between the fixed blade and make the hair difficult to fall down, and can cut the hair to a desired cutting height. The purpose is to provide a simple clipper.

  In order to achieve the above-mentioned object, the invention of claim 1 is characterized in that a plurality of blades are arranged in parallel and a comb-like fixed blade and a movable blade are stacked, and the movable blade is arranged in parallel with the fixed blade. In the clipper that reciprocally slides in the direction and cuts the hair, each blade of the fixed blade has a rib that protrudes from the side surface of each blade.

  According to a second aspect of the present invention, in the first aspect of the present invention, the rib is extended from the cutting edge side to the base end side of each blade body of the fixed blade, and the distal end portion on the blade edge side is each blade body. It is formed so as to rise from the side surface of the taper.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the rib is disposed so as to constitute a part of a sliding contact surface between the fixed blade and the movable blade.

  According to a fourth aspect of the present invention, in the first or second aspect of the present invention, each blade body of the fixed blade is a rib arranged so as to constitute a part of a sliding contact surface between the fixed blade and the movable blade. And each side surface has a plurality of ribs including ribs disposed below the ribs.

  According to a fifth aspect of the present invention, in the third or fourth aspect of the present invention, the rib arranged so as to constitute a part of the sliding contact surface is constituted by a protruding end surface of the rib and the sliding contact surface. The corner portion is formed to have an acute cross section.

  According to a sixth aspect of the present invention, in the first or second aspect of the present invention, the rib extends to at least a portion in the vicinity of the tip end portion of a predetermined sliding contact range in which the movable blade can slide in the fixed blade. It is what.

  The invention according to claim 7 is the invention according to claim 1 or 2, wherein the rib is extended from the vicinity of the base end portion of each of the blades of the fixed blade to the vicinity of the blade edge portion.

  The invention according to claim 8 is the invention according to claim 1 or 2, wherein the rib is arranged such that a direction parallel to a sliding contact surface between the fixed blade and the movable blade is a longitudinal direction. is there.

  The invention according to claim 9 is the invention according to any one of claims 1 to 8, wherein the movable blade changes the position of the blade edge relative to the fixed blade from the base end side of the fixed blade toward the blade edge side. It is configured to be possible.

  According to invention of Claim 1, the hair introduced into the blade groove between each blade body of a fixed blade is sent toward the base end part in which the movable blade is provided, contacting a rib. Since the hairs are substantially in line contact with the ribs, the contact area with each other is reduced, and the frictional force between the ribs acting on the hair is reduced, so that the hair reaches the cutting edge of the movable blade without falling down. Therefore, the hair can be cut to a desired cutting height.

  According to invention of Claim 2, the hair introduce | transduced into the blade groove | channel of the fixed blade contacts a rib, contacting the taper-like standing part. Therefore, the introduction of the hair into the blade groove is not hindered by the rib, and the hair can be smoothly introduced into the blade groove and cut.

  According to the invention of claim 3, since the rib functions as a cutting blade for cutting between the movable blade and the hair is cut between the rib and the movable blade, the vicinity of the hair cutting site is supported by the rib. The hair can be cut reliably.

  According to the invention of claim 4, since the hair is cut between the rib and the movable blade while the hair is supported by the plurality of ribs, the position of the hair can be stabilized and supported, and the hair can be more reliably secured. Can be cut into pieces.

  According to the invention of claim 5, since the cutting resistance at the time of pinching between the fixed blade and the movable blade is reduced, the load at the time of driving the movable blade can be reduced, and a more excellent sharpness can be obtained. it can.

  According to the sixth aspect of the present invention, since the frictional force between the movable blade and the fixed blade acting on the hair can be reduced in the substantially entire range of the predetermined sliding contact range, the hair cannot be tilted more reliably. In this way, it can be supported and cut to a desired cutting height.

  According to the invention of claim 7, when hair is introduced into the blade groove between the blades of the fixed blade, the hair is always brought into line contact with the ribs, and the frictional force acting on the hair is reduced. Therefore, the introduction resistance of the hair in the blade groove of the fixed blade can be further reduced, and the cutting can be reliably cut to a desired cutting height.

  According to the eighth aspect of the present invention, the positional relationship in the direction perpendicular to the sliding contact surface of the movable blade between the movable blade and the hair support portion by the rib can be kept constant. Can be more stably supported, and more stable sharpness can be obtained.

  According to the ninth aspect of the present invention, in the fixed blade having a long blade, the frictional force between the blade and the fixed blade acting on the hair can be reduced, and the desired hair can be trimmed more effectively. Can be cut to height.

  Hereinafter, the configuration of the clipper according to the first embodiment of the present invention will be described with reference to the drawings. Fig.1 (a), (b), (c) shows an example of the clipper 1 which concerns on this embodiment. This clipper 1 is configured by mounting a blade block 10 having a fixed blade 12, a movable blade 13 and the like on a longitudinal end portion (the upper end in FIG. 1A) of an elongated body portion 2 that also serves as a gripping portion. Has been. In operation, the clipper 1 uses the motor 6 disposed in the main body 2 as a drive source to move the movable blade 13 of the blade block 10 in the short direction of the main body 2 with respect to the fixed blade 12 (FIG. ) Slide back and forth in the left-right direction). At this time, when the hair is introduced into the blade groove at the tip of the fixed blade 12, the hair is sandwiched between the fixed blade 12 and the movable blade 13 and cut (clipping).

  First, the configuration of the main body 2 will be described. As shown in FIG. 1A, the main body 2 is covered with a main body housing 3 that forms an outer shell that is substantially S-shaped in side view and can be gripped with one hand. As shown in FIG. 1B, the main body housing 3 is provided with an operation switch 4 a and a cutting height adjustment dial 4 b that are exposed to the outside of the main body housing 3 and can be operated by the user. The cutting height adjusting dial 4b is rotatably arranged. As shown in FIG. 1 (c), inside the main body housing 3, there are a rechargeable battery 5, a motor 6 that is reciprocated and supplied with power by the rechargeable battery 5, and the driving force of the motor 6 is on the upper end side A power transmission mechanism 6a that transmits power to the motor, an output shaft 6b that is reciprocally driven by the power transmission mechanism 6a, a control unit 7 that controls power supply to the motor 6 in response to a pressing operation of the operation switch 4a, and a dial 4b. The interlocking transmission mechanism 8 and the like are accommodated. As will be described later, the output shaft 6b is disposed so as to protrude from the distal end portion (upper side in the figure) of the main body housing 3 so as to be interlocked with a guide plate 15 provided in the blade block 10. As will be described later, the transmission mechanism 8 is operated in the up-down direction of the body housing 3 in conjunction with the forward / reverse rotation of the dial 4b so that the switching lever 17 provided on the blade block 10 is tilted up and down. It is arranged to be displaceable.

  Next, the configuration of the blade block 10 will be described. 2 to 4 show the blade block 10. The blade block 10 includes a comb-shaped fixed blade 12 formed by arranging a large number of blade bodies (hereinafter referred to as fixed blade blade bodies) 12a, and a blade body (hereinafter referred to as a movable blade blade body) that is in sliding contact with the fixed blade 12. ) It has a comb-shaped movable blade 13 formed by arranging a large number of 13a. The blade block 10 also holds a fixed plate 14 that holds the fixed blade 12 and a guide plate 15 that holds the movable blade 13, a pressing spring 16 that presses the movable blade 13 against the fixed blade 12, and a pressing spring 16. A switching lever 17 and the like are provided. The blade block 10 is attached to the main body 2 with the fixing plate 14 held by the main body 2. 2 and 4A, an arrow X indicates a direction in which the fixed blade body 12a and the movable blade body 13a are juxtaposed, that is, the direction in which the movable blade 13 reciprocates when the clipper 1 is driven. Moreover, in FIG.2 and FIG.4 (b), the arrow Y shows the displacement direction of the movable blade 13 by the cutting height adjustment function mentioned later.

  As shown in FIG. 3, a plurality of tapered fixed blade blade bodies 12 a whose both side portions on the upper surface are cutting edges are arranged in parallel at a predetermined interval at the tip of the fixed blade 12. In addition, a large number of movable blade bodies 13a having both side portions on the lower surface serving as cutting edges are juxtaposed at the distal end portion of the movable blade 13 at predetermined intervals different from the parallel intervals of the fixed blade blade bodies 12a. The fixed plate 14 has a hook 14a for engaging with the fixed blade 12, and the fixed blade 12 is fixed by the hook 14a. Further, the fixing plate 14 has a semicircular groove portion 14 b for supporting the switching lever 17 and a spring receiving portion 14 c for supporting a part of the pressing spring 16. The guide plate 15 has a holding part 15 a formed so as to hold the tip part of the output shaft 6 b on the main body part 2 side, and a hook 15 b for engaging with the movable blade 13. The guide plate 15 holds the movable blade 13 by, for example, fixing it through a heat seal (not shown) or the like so that the hook 15 b engages with the movable blade 13.

  The pressing spring 16 is, for example, a torsion coil spring of a double torsion type, and two coils 16 a arranged substantially coaxially are arranged to be fitted and supported by the switching lever 17. The pressing spring 16 is arranged such that the arm portions 16b at both ends that are relatively long are connected to the guide plate 15 and the movable blade 13, and the arm portion 16c at the center portion is supported by the spring receiving portion 14c of the fixed plate 14, respectively. The pressing spring 16 is arranged in an elastically deformed state so as to press the guide plate 15 and the movable blade 13 toward the fixed blade 12 by the restoring force of the pressing spring 16. When the motor 6 is driven, the driving force of the reciprocating drive of the output shaft 6b is transmitted to the guide plate 15 via the clamping portion 15a. Thereby, the movable blade 13 is fixed while displacing the arm portions 16b at both ends of the pressing spring 16 with respect to the coil 16a while being pressed against the sliding surface of the fixed blade 12 by the pressing spring 16 together with the guide plate 15. Reciprocates with respect to the blade 12. Even if a force is applied to the movable blade 13 during hair cutting by the urging force of the pressing spring 16, the movable blade 13 does not lift from the fixed blade 12, and the hair can be cut stably.

  The switching lever 17 has a substantially cylindrical rotating shaft 17a formed at both ends of the lower portion, and a protruding portion 17b formed so as to protrude upward from both side portions and come into contact with the transmission mechanism 8 of the main body 2. Yes. The switching lever 17 is arranged such that the rotation shaft 17a is supported by the semicircular groove portion 14b of the fixed plate 14, rotates about the rotation shaft 17a, and can be tilted with respect to the fixed plate 14. A coil 16 a of a pressing spring 16 is fitted to the switching lever 17, and the switching lever 17 is urged by the pressing spring 16 in such a direction that the posture with respect to the fixed plate 14 becomes a lying posture. When the switching lever 17 is turned to the standing posture side against the urging force of the pressing spring 16, the movable blade 13 and the guide plate 15 are fixed blade blades while the movable blade 13 is pressed by the fixed blade 12. It slides toward the protruding direction (arrow Y direction) of 12a and the movable blade blade body 13a. 4A shows the position of the movable blade 13 with respect to the fixed blade 12 when the switching lever 17 is in the lying posture, and FIG. 4B shows the fixed blade when the switching lever 17 is in the standing posture. The position of the movable blade 13 with respect to 12 is shown.

  The raising / lowering operation of the switching lever 17 can be performed by rotating the dial 4 b and changing the position of the transmission mechanism 8. That is, when the rotational position of the dial 4b is moved in a predetermined positive direction, the projecting portion 17b is pushed in the protruding direction of the fixed blade 12a by the transmission mechanism 8, and the switching lever 17 is rotated toward the standing posture. Thereby, as shown in FIG.4 (b), the movable blade 13 slides so that the blade edge part of the movable blade blade body 13a may approach the blade edge part of the fixed blade blade body 12a. Further, when the rotational position of the dial 4b is moved in the reverse direction with respect to the normal direction, the pushing amount of the projection 17b by the transmission mechanism 8 is reduced, so that the switching lever 17 is directed to the lying posture by the urging force of the pressing spring 16. Rotate. Thereby, the movable blade 13 slides in a direction in which the blade edge portion of the movable blade blade body 13a is separated from the blade edge portion of the fixed blade blade body 12a. The dial 4b and the transmission mechanism 8 are configured such that the position of the transmission mechanism 8 can be changed in a plurality of stages, and a plurality of positions of the movable blade 13 with respect to the fixed blade 12 are plural in the protruding direction of the fixed blade blade body 12a and the movable blade blade body 13a. The position can be changed to a predetermined position. The fixed blade body 12a is formed in a sharp shape in side view so that the wall thickness, that is, the dimension from the sliding contact surface of the fixed blade 12 to the movable blade 13 to the lower end portion gradually increases as it approaches the base end portion. Has been. Therefore, the hair cutting height can be adjusted by changing the position of the movable blade 13 relative to the fixed blade 12.

  Here, the fixed blade body 12a of the fixed blade 12 and the movable blade body 13a of the movable blade 13 will be described in detail with reference to FIGS. As shown in FIG. 5B, each fixed blade 12a gradually moves from the sliding contact surface with the movable blade 13 toward the lower end as seen from the blade tip side to the base end side, as shown in the drawing. It is formed in a tapered shape with a narrow width. In the present embodiment, each fixed blade body 12a is formed with a rib 12b that protrudes laterally from the side surface. The rib 12b is formed so as to constitute a part of a sliding contact surface between the fixed blade 12 and the movable blade 13, and serves as a cutting blade of the fixed blade body 12a. The detailed shape of the rib 12b will be described later. As shown in FIG. 6A, the fixed blade edge 12a is formed in a tapered shape so that the width dimension is gradually narrowed from the base end side toward the blade edge side in a top view. The fixed blade edge 12a is configured to be able to introduce hair into the blade groove between the adjacent fixed blade edges 12a. Since the fixed blade edge 12a has a tapered shape, the introduction of hair is not hindered by the fixed blade edge 12a, and the hair can be smoothly introduced into the blade groove.

  On the other hand, each movable blade blade body 13a has a cutting blade portion 13b formed to protrude in a wedge shape over substantially the entire length in the protruding direction of each movable blade blade body 13a on both lower side portions, and a cutting blade portion 13b on both side portions. And a rising surface 13c formed so as to rise from the top. The movable blade blade 13a introduces the hair introduced into the groove between the fixed blade blades 12a into the blade groove between the movable blade blades 13a, and the movable blade blade 13a is sandwiched between the movable blade blade 13a and the fixed blade blade 12a. Cut off. As shown in the figure, the cutting edge portion 13b has a rake angle β so that the amount of protrusion from the side surface of each movable blade blade body 13a decreases as it goes upward from the lower end portion that is a sliding contact surface with the fixed blade 12. Is formed to have an acute angle. Thereby, when the hair is sandwiched between the fixed blade blade body 12a and the movable blade blade body 13a as described above, the cutting resistance force applied to the movable blade blade body 13a is reduced, so that the hair is cut more smoothly. be able to. In addition, since the movable blade body 13a is provided with the rising surface 13c, the cut hair does not easily scatter when it hits the rising surface 13c.

  In the present embodiment, the rib 12b extends from the slidable contact surface with the movable blade 13 downward with a predetermined width and extends from the blade tip side (tip end side) to the base end side of each fixed blade blade body 12a. Yes. That is, each rib 12b is arranged so that the direction parallel to the sliding contact surface becomes the longitudinal direction so that one surface becomes the sliding contact surface with the movable blade 13. As shown in the figure, the rib 12b has an acute cross section in which a corner portion formed by the sliding contact surface with the movable blade 13 and the protruding end surface of the rib 12b has a rake angle γ that is an acute angle in a cross-sectional view. Is formed. As a result, the cutting resistance at the time of pinching between the fixed blade 12 and the movable blade 13 is reduced as in the case where the cutting edge portion 13b has an acute rake angle β as described above. The load at the time of driving 13 can be further reduced, and a better sharpness can be obtained. Further, as shown in FIG. 6B, the rib 12b has a tip end on the blade edge side of the fixed blade blade body 12a that rises in a tapered shape from the side surface of each fixed blade blade body 12a. As the base end portion is approached, the protruding amount from the side surface of the fixed blade body 12a is gradually increased. As shown in FIG. 7A, the rib 12 b is formed from the blade tip portion to the base end portion of the fixed blade blade body 12 a, and the movable blade 13 is formed of the fixed blade 12 as shown in FIG. Even when displaced so as to approach the blade edge portion, the movable blade 13 is formed so as to be in sliding contact with the blade edge portion. That is, the rib 12b is formed over the entire range of a predetermined sliding contact range in which the movable blade 13 that is displaced by the operation of the dial 4b in the fixed blade 12 can slide.

  FIG. 8 shows a state of the hair H when the hair H is cut by the clipper 1. The clipper 1 is used by moving the clipper 1 forward (in the direction of arrow F in the figure) so that the lower end of the fixed blade 12 is along the skin G on which the hair H grows. In this embodiment, when the hair H is introduced into the blade groove between the fixed blade blades 12a, the hair H is fed toward the proximal end where the movable blade 13 is located while contacting the rib 12b as the clipper 1 moves. It is done. At this time, since the hair H is in substantially line contact with the rib 12b, the contact area with each other is reduced, and the frictional force between the hair H and the rib 12b acting on the hair H is reduced. Therefore, as compared with the case where the conventional hair clipper is used, the hair H reaches the cutting edge portion of the movable blade 13 without falling down, so that the hair H is moved from a desired cutting height, that is, from the lower end portion of the fixed blade 12. The movable blade 13 can be cut to a height up to the vicinity of the blade edge portion. At this time, the positional relationship in the direction perpendicular to the sliding contact surface of the movable blade 13 and the contact position of the hair H with the rib 12b can be kept constant. It can be supported more stably, and a more stable sharpness can be obtained.

  Moreover, since the rib 12b is formed in the substantially whole range of the predetermined sliding contact range of the movable blade 13, it can support the hair H more reliably so that it may not fall down, and can cut | disconnect to the desired cutting height. it can. Furthermore, since the hair H introduced into the blade groove is always in line contact with the rib 12b, the introduction resistance of the hair H into the blade groove can be further reduced.

  Further, the hair H introduced into the blade groove between the fixed blade blade bodies 12a comes into contact with the ribs 12b from the tip portion rising in a tapered shape from the side surface of the fixed blade blade body 12a. Therefore, the introduction of the hair H into the blade groove is not hindered by the rib 12b, and the hair H can be introduced into the blade groove more smoothly. Further, in the clipper 1, the rib 12b functions as a cutting edge for sandwiching with the movable blade 13, so that the hair H can be cut more reliably while the vicinity of the cutting portion of the hair H is supported by the rib 12b. Can do.

  In addition, a rib is not restricted to what has the above cross-sectional shapes. FIG. 9 shows an example of a fixed blade body 112a having a rib 112b according to a modification of the first embodiment. The rib 112b of the fixed blade body 112a is disposed so as to constitute a part of the sliding contact surface with the movable blade 13, similarly to the above-described rib 12b, and a protruding portion from the side surface of the fixed blade blade body 112a. Has a substantially triangular cross section. That is, as shown in the drawing, the corner portion constituted by the protruding end surface of the rib 112b and the sliding contact surface of the movable blade 13 is formed to have an acute cross section in which the rake angle γ is an acute angle. Thus, by providing the rib 112b that protrudes in a substantially triangular shape from the fixed blade body 112a, the hair H is supported so as not to fall down as described above, and is smoothly cut to a desired cutting height. Is possible.

  FIGS. 10A, 10B, and 10C show examples of fixed blade bodies 212a, 312a, and 412a according to a modification of the first embodiment, respectively. As shown in FIG. 10 (a), on both side surfaces of the fixed blade blade body 212a, a taper shape rises from the cutting edge of the fixed blade blade body 212a toward the base end side, and is substantially uniform from the side surface of the fixed blade blade body 212a. Ribs 212b are formed so as to protrude to the base end portion with an appropriate protruding height. Thus, even if the rib 212b is formed so that only a part of the blade edge side rises in a tapered shape from the side surface of the fixed blade blade body 212a, the hair H is smoothly smoothed between the fixed blade blade bodies 212a as described above. Can be introduced into the blade groove. Further, as shown in FIG. 10B, the fixed blade edge 312a is tapered on both side surfaces from a position away from the edge of the fixed blade edge 312a toward the proximal end toward the proximal end. The rib 312b is formed so as to protrude from the side surface of the fixed blade body 312a to the base end portion with a substantially uniform protruding height. Thus, by providing the rib 312b that is not formed over the entire region in the protruding direction of the fixed blade body 312a, the frictional force applied to the hair H in contact with the rib 312b can be reduced. Furthermore, as shown in FIG. 10 (c), the fixed blade edge 412a is provided so as to rise from the blade tip side toward the proximal end side, and is provided with tapered portions having rounded corners and corners. Ribs 412b are provided on both sides. By providing the rib 412b having such a roundness, the hair H can be more smoothly introduced into the blade groove between the fixed blade edges 412a. The rib 412b is not formed over the entire region of the fixed blade edge 412a in the protruding direction, but extends at least to the vicinity of the tip end portion of the predetermined sliding contact range where the movable blade 13 is in sliding contact. In other words, as shown in the figure, the rib 412b is a fixed blade that extends from the vicinity of the distal end of the slide range (indicated by the dimension line S in the figure) of the movable blade blade 13a by the cutting height adjustment function toward the proximal end. The blade body 412a is provided. Thereby, when cutting the hair H, the frictional force acting on the hair H can always be reduced, and the hair H can be reliably cut to a desired cutting height.

  Next, the configuration of the clipper according to the second embodiment of the present invention will be described with reference to FIGS. In the following description, parts that are configured in the same manner as in the first embodiment described above are denoted by the same reference numerals, and only portions that are different from the first embodiment are described. In the second embodiment, the configuration of the fixed blade 22 of the blade block 20 is different from that of the first embodiment, and the main body 2 of the clipper and the other portions of the blade block 20 are configured in the same manner as the above-described clipper 1. Therefore, the whole clipper is not shown. FIG. 11 shows the fixed blade 22 and the movable blade 13 of the blade block 20 and corresponds to the above-described FIG. FIG. 12 shows the blade block 20 and corresponds to the above-described FIG.

  In the second embodiment, the fixed blade body 22a of the fixed blade 22 is provided with a first rib 22b and a second rib 22c, respectively. These two ribs 22b and 22c are formed so as to protrude from both side surfaces of each fixed blade body 22a. As shown in FIG. 11, the first rib 22 b is arranged so that one side surface constitutes a part of the sliding contact surface that is in sliding contact with the movable blade 13, as in the rib 12 b of the first embodiment described above. . On the other hand, the second rib 22c is disposed below the first rib 22b. As shown in FIG. 11, the first rib 22b has a rake angle γ formed by a corner formed by the sliding contact surface with the movable blade 13 and the protruding end surface of the first rib 22b, as in the above-described rib 12b. Is formed so as to have an acute angle cross section having an acute angle. Thereby, when the hair is sandwiched between the fixed blade 22 and the movable blade 13, the cutting resistance applied to the movable blade 13 is reduced, so that the hair can be cut smoothly. The protruding end surface of the first rib 22b and the protruding end surface of the second rib 22c formed on the same side surface of each fixed blade body 22a are located on substantially the same plane. As shown in FIG. 12, the two ribs 22b and 22c are both longitudinal in the direction parallel to the slidable contact surface between the fixed blade 22 and the movable blade 13 from the cutting edge portion to the base end portion of the fixed blade body 22a. It is formed to become. Thereby, the hair introduced into the blade groove between the fixed blade blades 22a always contacts the ribs 22b and 22c.

  As described above, according to the second embodiment, the hair is cut between the first rib 22b and the movable blade body 13a while the hair is supported by the two ribs 22b and 22c. It is possible to stabilize and support the position of the hair while preventing it from falling down. In particular, since the protruding end surfaces of the two ribs 22b and 22c formed on the same side surface of the fixed blade body 22a are located on substantially the same plane, the hair can be supported more stably and the hair can be cut more reliably. be able to. Moreover, since the hair introduced into the blade groove is always in contact with the ribs 22b and 22c, the hair can be more reliably kept from falling down due to frictional force. Further, since the two ribs 22b and 22c are formed so that the direction parallel to the sliding contact surface between the fixed blade 22 and the movable blade 13 is the longitudinal direction, the ribs 22b and 22c between the hairs are between the ribs 22b and 22c. The distance in the direction perpendicular to the sliding contact surface between the position where the frictional force acts and the movable blade 13 does not change. Accordingly, it is possible to cut the hair introduced into the blade groove between the fixed blade bodies 22a in a more stably supported state.

  In addition to the first rib 22b and the second rib 22c, the fixed blade body 22a may further include another rib disposed below the first rib 22b. Even when three or more ribs 22b, 22c,... Are provided as described above, the hair is stably supported and can be reliably cut while reducing the frictional force applied to the hair as compared with the conventional case. Can do.

  In the second embodiment, the tip portions of the two ribs on the cutting edge side may not be located at the cutting edge portion of the fixed blade 12. FIGS. 13A and 13B show an example of a fixed blade 122 in which fixed blade bodies 122a in which two ribs 122b and 122c are formed on both side surfaces are arranged side by side. As shown in FIG. 13 (a), the two ribs 122b and 122c are arranged so that the fixed blade edge 122a extends from the position away from the edge of the fixed blade edge 122a toward the proximal end toward the proximal end. The base end portion is formed so as to taper up from the side surface and protrude from the side surface of the fixed blade edge 122a. As shown in FIG. 13 (b), the tips of the ribs 122b and 122c on the cutting edge side are in sliding contact with the movable blade 13 that slides in the protruding direction of the fixed blade body 122a (the arrow Y direction in the figure). It is located closer to the cutting edge than the tip of the range. Accordingly, the hair is always reliably cut by the fixed blade 12 and the movable blade 13 while being supported by the ribs 122b and 122c.

  In addition, this invention is not limited to the structure of the said embodiment, A various deformation | transformation is possible suitably in the range which does not change the meaning of invention. For example, the clipper may not have a cutting height adjustment function, and the position of the fixed blade body in the protruding direction with respect to the fixed blade of the movable blade may be substantially fixed. That is, even in the case of such a clipper with a relatively short length in the protruding direction of the fixed blade blade body, by providing a rib on the side surface of each fixed blade blade body, The fall of the introduced hair H can be prevented, and the hair H can be cut to a desired cutting height. Moreover, the rib may be arrange | positioned so that the sliding contact surface with the movable blade 13 may not be comprised among the side surfaces of each fixed blade blade body. Even in this case, when the hair H introduced into the blade groove between the fixed blade bodies contacts the rib, the frictional force applied to the hair H can be reduced and the hair H can be made difficult to fall down. H can be cut to a desired cutting height.

(A) is a side view showing an example of the clipper according to the first embodiment of the present invention, (b) is a plan view of the clipper, and (c) is a side sectional view of the clipper. The perspective view which shows the blade block of the said clipper. The disassembled perspective view of the said blade block. (A) is a top view of the said blade block, (b) is a top view which shows the same blade block when a switching lever is a standing state. (A) is the sectional view on the AA line of Fig.4 (a), (b) is the elements on larger scale of (a). (A) is a top view which shows the movable blade blade body of the said blade block, (b) is a perspective view which shows the front-end | tip part vicinity site | part of the same blade block. (A) is the BB sectional view taken on the line of Fig.4 (a), (b) is CC sectional view taken on the line of FIG.4 (b). The sectional side view which shows the front-end | tip part vicinity site | part of a blade block at the time of use of the said clipper. The fragmentary sectional view which shows the front-end | tip part vicinity site | part of the blade block which concerns on one modification of the said embodiment. (A) is a top view which shows the fixed blade blade body of the blade block which concerns on another modification of the said embodiment, (b) is a top view which shows the fixed blade blade body concerning one modification of (a), (c) (A) is a top view which shows the fixed blade blade body which concerns on another modification of (a). The partial expanded view of the cross section in the front-end | tip part vicinity site | part of the blade block of the clipper which concerns on 2nd Embodiment of this invention. The sectional side view of the tip vicinity part site | part of the said blade block. (A) is a perspective view which shows the front-end | tip part vicinity site | part of the blade block which concerns on one modification of 2nd Embodiment, (b) is a perspective view which shows the front-end | tip part vicinity site | part of the same blade block when a switching lever is a standing state. Figure. (A) is a top view which shows an example of the blade block of the conventional clipper, (b) is the elements on larger scale of the cross section in the AA of (a). The perspective view which shows the front-end | tip part vicinity site | part of the said blade block. The sectional side view which shows the front-end | tip part vicinity site | part of a blade block at the time of use of the said clipper.

Explanation of symbols

1 Hair clipper 12, 22, 122 Fixed blade 12a, 22a, 112a, 122a, 212a, 312a, 412a Fixed blade blade (fixed blade blade)
12b, 22b, 22c, 112b, 122b, 122c, 212b, 312b, 412b Rib 13 Movable blade 13a Movable blade blade (blade of movable blade)
H Hair

Claims (9)

In a clipper that cuts the hair by reciprocatingly sliding the movable blade in the juxtaposition direction of the blade body with respect to the fixed blade by overlapping a comb-shaped fixed blade and a movable blade formed by arranging a large number of blade bodies in parallel,
Each blade body of the fixed blade has a rib projecting from a side surface of each blade body.   The rib extends from the cutting edge side to the proximal end side of each blade body of the fixed blade, and the tip portion on the blade edge side is formed to rise in a tapered shape from the side surface of each blade body. The clipper according to claim 1.   The clipper according to claim 1 or 2, wherein the rib is disposed so as to constitute a part of a sliding contact surface between the fixed blade and the movable blade.   Each blade body of the fixed blade includes a plurality of ribs including a rib disposed so as to constitute a part of a sliding contact surface between the fixed blade and the movable blade and a rib disposed below the rib. The clipper according to claim 1 or 2, wherein   The rib arranged so as to constitute a part of the sliding contact surface is formed such that a corner portion constituted by the protruding end surface of the rib and the sliding contact surface has an acute cross section. The clipper according to claim 3 or claim 4.   3. The clipper according to claim 1, wherein the rib extends to at least a portion in the vicinity of a tip end portion of a predetermined sliding contact range in which the movable blade can be slidably contacted among the fixed blades. .   The clipper according to claim 1 or 2, wherein the rib extends from a vicinity of a base end portion of each blade body of the fixed blade to a vicinity of a blade edge portion.   The clipper according to claim 1 or 2, wherein the rib is arranged so that a direction parallel to a sliding contact surface between the fixed blade and the movable blade is a longitudinal direction.   The said movable blade is comprised so that the position of the blade edge | tip with respect to a fixed blade can be changed toward the blade edge | edge side from the base end side of the said fixed blade, The any one of Claim 1 thru | or 8 characterized by the above-mentioned. Hair clipper described in 1.

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