JP4613785B2 - Hair cutter - Google Patents

Abstract

A hair clipper includes a hair clipper main body (1) having a cutter unit (2) for cutting hair, the cutter unit being installed at a leading end of the hair clipper main body, a hair suctioning section (B) for suctioning the hair cut by the cutter unit therethrough. The hair suctioning section is formed by a suction case (14) detachably attached to a first surface side of a housing of the hair clipper main body, and an attachment (41) for adjusting a hair trim length is attached to a second surface side of the housing to be slidably moved thereon independently of an attachment and separation of the suction case.

Description

  The present invention relates to a hair cutter having a function of sucking cut hair.

Conventionally, a hair cutter provided with an attachment for trimming height adjustment is known (see, for example, Patent Document 1). However, the attachment has a cylindrical shape that is fitted from the front end side of the hair cutter body. Therefore, when the hair cutter body is provided with a hair suction path for drawing cut hair from the suction port, this hair In order to dispose of the hair collected by removing the suction case forming the suction path, it is necessary to remove the attachment once, and there is a problem that the convenience for the user is deteriorated.
Japanese Patent Publication No. 2001-232076

  This invention is invented in view of the said problem, Comprising: It aims at providing the hair cutter provided with the attachment which can be attached or detached and slidable independently of attachment or detachment of the suction case which forms a hair suction part. It is.

The present invention to solve the above problems, the hair clipper main body having a blade portion 2 for the hair cut on the tip, with the hair suction path 6 for sucking the hair cut by the blade unit 2, the hair suction path 6 is formed by a suction case 14 that is detachably mounted on the one side 1a side of the housing 1 of the hair cutter body, and on the other side 1b of the opposite side of the housing 1, the suction case 14 is independent of attachment / detachment. Then, in the hair cutter in which the attachment 41 for adjusting the cutting height is attached so as to be slidable in the suction direction, the attachment 41 is a half-cylindrical base that is slidably attached in the longitudinal direction of the hair cutter body. The comb portion 43 is projected from the top of the table 42, and both end portions of the comb portion 43 are always in a position where the blade portion 2 is hidden in a side view regardless of the slide amount of the attachment 41. It is set and that the Rukoto characterized to form a hair scattering prevention wall.

In this way, if the cut hair is stored in the hair suction path 6, the suction case 14 can be freely removed and discarded, and if the cutting height is to be changed, the attachment 41 is free. Can be slid. That is, since the attachment / detachment of the suction case 14 and the attachment / slide of the attachment 41 can be performed independently of each other, it is possible to remove the suction case 14 and discard the hair without any problem even with the attachment 41 attached. And even if it is the attachment 41 with which it attached to the single side | surface 1b side of the housing 1, it can prevent effectively that hair scatters at the time of haircut by the hair scatter prevention wall.

In the hair cutter having the above-described configuration, the suction case 14 is formed by the upstream block 19 having the suction port 13 at the tip and the downstream block 20 on the downstream side thereof, and is independent of the slide of the attachment 41. The upstream block 19 is slidably provided along the suction direction with respect to the downstream block 20 fixed to the housing 1 of the hair cutter body, and the hair is formed between the inner surface of the downstream block 20 and the outer surface of the housing 1 of the hair cutter body. to form the hair suctioning section B to accumulate a you characterized Rukoto. For example, when hair is cut around the ear, the vicinity of the suction port 13 of the suction case 14 may come in contact with the head of the haircut person, but if the upstream block 19 is slidable as described above, the upstream side It is possible to retract the block 19 so as not to make the haircut person uncomfortable.

  The present invention has an effect of providing a hair cutter including an attachment that can be attached and detached independently of the attachment and detachment of the suction case forming the hair suction portion.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings. As shown in FIGS. 1 to 3, an example of the hair cutter in the embodiment of the present invention is one end in the longitudinal direction of the housing 1 that forms the outer shell of the hair cutter body that can be gripped with one hand (hereinafter referred to as “ The hair cutting part A in which the blade part 2 protrudes from the tip is arranged on the tip side), and the suction fan 3 is provided on the other end side in the longitudinal direction (hereinafter referred to as “base end side”). A suction force generation unit C is arranged, and motors 4 and 5 serving as dedicated drive sources are built in the respective units A and C. Both parts A and C are formed in the housing 1 at a predetermined length in the longitudinal direction (similar to the length of each part A and C), and are formed in the housing 1 from the back of the hair cutting part A. In a series of parts between C, outside air at the tip of the blade part 2 of the hair cutting part A passes through the back of the hair cutting part A and the gap part between both parts A and C into the suction force generating part C. The hair suction part B to be sucked up to is formed.

  In addition, said longitudinal direction is the suction direction in the hair suction part B and the suction force generation part C. Therefore, the front end side in this text can be rephrased as the upstream side, and the base end side can be restated as the downstream side. Moreover, said back is based on the direction seen from the haircut person side from which hair is cut.

  Hereinafter, the detailed structure of each part AC will be described. First, the hair cutting part A is provided with a blade block 9 having a blade part 2 attached to the tip, a motor 4 serving as a drive source, a drive cam 7 press-fitted into an output shaft 4a of the motor 4, and the drive A drive shaft 8 attached to a position deviating from the center axis of the cam 7 is built in, and the drive shaft 8 is connected to a guide plate 10 provided in the blade block 9 so that the eccentric rotational motion of the drive shaft 8 is achieved. Is converted into a reciprocating motion through the guide plate 10 and transmitted to the blade portion 2, so that the movable blade 12 side of the blade portion 2 composed of the fixed blade 11 and the movable blade 12 is placed on the hair cutter body with respect to the fixed blade 11. It is a structure which reciprocates in the short direction. An operation button 30 (see FIG. 2, FIG. 3, etc.) is exposed on the side surface of the housing 1 so as to be slidable in the longitudinal direction, and the power supply to the motor 4 can be controlled by sliding the operation button 30. It has become.

  Next, the hair suction part B will be described. The hair suction part B forms a cylindrical body having a suction port 13 opened in the vicinity of the back of the blade part 2 of the hair cutting part A, and the proximal end side of the hair suction path 6 formed in the cylindrical body is It is structured to communicate with the suction force generation part C.

  The hair suction part B forming the cylindrical body has a concave groove-like back surface portion on the one surface 1a side of the outer surface of the housing 1, and an inner surface of a suction case 14 that is detachably attached to the outer surface of the housing 1. It is a structure which forms the hair suction path 6 with 14a. A pair of hook-like locking pieces 15 are provided on both side ends of the rear portion of the housing 1 so as to face the back (see FIG. 4). The locking piece 16 protrudes toward the base end side (see FIGS. 5 and 6). Then, the engaging pieces 15 at both ends of the housing 1 are engaged with both end portions of the suction case 14 so that the suction case 14 is slidably engaged with the housing 1 in the longitudinal direction. The edge is applied to the stepped portion 17 on the outer surface of the housing 1, and the locking piece 16 of the suction case 14 is engaged with the locked portion 18 recessed in the rear portion of the housing 1 at this position (see FIG. 1), the slide of the suction case 14 with respect to the housing 1 is fixed, whereby the suction case 14 is fixed to the outer surface of the housing 1 to form the hair suction portion B.

  The suction case 14 has a half-cylindrical upstream block 19 that has a suction port 13 at the tip and forms an upstream portion of the suction case 14, and a half that forms a downstream portion of the suction case 14 from the upstream block 19. It is formed by connecting with the cylindrical downstream block 20 in an overlapping state. The downstream block 20 is a portion of the suction case 14 that is fixed to the housing 1 as described above, and the upstream block 19 is connected to the downstream block 20 so as to be slidable in the longitudinal direction, and the suction case according to the sliding amount. 14 is a part for changing the amount of protrusion of the entire 14 toward the tip side.

  FIG. 5B and FIG. 6 show a connection structure between the upstream block 19 and the downstream block 20. The downstream block 20 is formed with a slidable contact surface 21 that is one step lower through the stepped portion 17 on the tip side, and the upstream block 19 covers the slidable contacted surface 21 and contacts the stepped portion 17 in the upstream side. The outer surface of the block 19 and the outer surface of the downstream block 20 are formed to be flush with each other. A pair of hook-like slide locking pieces 22 extending in the longitudinal direction are provided in parallel on the inner surface of the upstream block 19, and the sliding contact surface 21 is slidable in the longitudinal direction with the slide locking pieces 22. Two pairs of slide-engaged pieces 23 having hook-like cross sections to be engaged are projected in parallel.

  As a result of the slidable engagement between the slide locking piece 22 and the slide locked piece 23, the upstream block 19 has the suction port 13 at the tip as far as the tip of the blade 2 as shown in FIG. As shown in FIG. 3, switching is possible between the protruding position and the retracted position in which the suction port 13 at the distal end is retracted larger than the distal end of the blade portion 2 toward the proximal end side. Reference numeral 24 in FIG. 6A denotes an elastically deformable click member fixed on the sliding surface 21 of the downstream block 20, and reference numeral 25 in FIG. 6B denotes a longitudinal direction from the inner surface of the upstream block 19. A click engaging portion having a pair of convex shapes projecting at a predetermined interval in the direction, and when the click member 24 gets over the click engaging portion 25 while elastically deforming, a click feeling is given. The load at the time of getting over is a means for holding the upstream block 19 in the protruding position or the retracted position.

  Next, the suction force generator C will be described with reference to FIG. 1 and FIGS. The suction force generation unit C is configured so that the fan section 27 having the suction fan 3 in the fan cover 26 and the flow passage cross section toward the downstream side in order to reduce the air sent from the fan section 27 and recover the static pressure. A fan block 29 formed by integrally connecting the diffuser portion 28 formed to be enlarged and the motor 5 for rotationally driving the suction fan 3 in the fan portion 27 so as to be connected in this order toward the downstream side, It is formed by being fixed to the inner surface of the housing 1. A filter 40 is interposed in a communicating portion between the space 50 where the fan block 29 in the housing 1 is disposed and the hair suction path 6 in the hair suction portion B, and at the base end portion of the housing 1 the space 50 described above. A discharge port 31 communicating with the air, and the air drawn into the hair suction portion B from the outside of the front end side of the housing 1 through the suction port 13 through the filter 40 and the fan portion 27 in the void 50 and After passing through the diffuser portion 28, it passes through the gap between the motor 5 and the inner surface of the housing 1 and is discharged from the discharge port 31 to the outside on the base end side.

  The fan block 29 has a structure in which the outer peripheral edge portion 32a of the cylindrical body portion 32 that forms the outer shell of the diffuser portion 28 is supported in the space 50 in the housing 1 by being fitted and fixed in the concave groove on the inner surface of the housing 1. The fan block 29 is configured to prevent the fan block 29 from vibrating due to the rotation of the suction fan 3 by pressing the portion of the fan block 29 having the maximum diameter with the housing 1. Further, in order to further prevent the occurrence of vibration, a buffer material (not shown) is provided on the outer peripheral surface of the diffuser portion 28 so as to be interposed between the outer peripheral edge portion 32a of the diffuser portion 28 and the concave groove on the inner surface of the housing 1. It is also suitable to attach

  The fan cover 26 that forms the outer shell of the fan portion 27 is a member that is formed by standing a side peripheral wall 26b from the periphery of the bottom wall 26a having an opening in the center, and the front edge of the side peripheral wall 26b is connected to the diffuser portion 28. By fixing to the cylindrical portion 32, a space in which the suction fan 3 is disposed is formed between the fan cover 26 and the diffuser portion 28. The suction fan 3 is a centrifugal fan formed by arranging a plurality of blades 34 radially on the hub 33.

  As shown in FIG. 8B, the diffuser portion 28 divides the outer peripheral side portion in the cylindrical body 35 into a plurality of flow paths 37 by a plurality of blades 36 arranged radially, and the cylindrical body 35. It is a diffuser with a blade | wing which forms the through-hole 38 for inserting the output shaft 5a of the motor 5 in the center part inside. The flow path 37 is formed so that the cross-sectional area gradually increases along the axial direction of the cylindrical body 35. The motor 5 is fixed to the diffuser portion 28 with the output shaft 5a inserted through the through hole 38, and the rotational force is generated by connecting the output shaft 5a and the suction fan 3 in the fan portion 27. To communicate.

  In the fan block 29, the number of blades m of the diffuser portion 28, which is a diffuser with blades, and the number of blades n of the suction fan 3 are natural numbers that are different from each other, and are provided so as to be prime to each other. In this example, m = 7 and n = 9. The wind noise during rotation of the suction fan 3 increases when the blades 34 of the suction fan 3 come closest to the nearby structure (that is, the blades 36 of the diffuser section 28). By setting, it is possible to prevent the wind noise of each blade 34 from being generated at the same time, and to reduce the noise of the entire fan block 29.

  Then, by incorporating the fan block 29 having the above configuration into the space 50 in the housing 1, the air drawn from the hair suction portion B by the rotation of the suction fan 3 passes through the fan block 29 in the space 50 to the proximal end side. An exhaust passage 39 is formed to be discharged to the exhaust port 31 and exhausted from the discharge port 31. In the exhaust passage 39, the air sent out in the centrifugal direction by the suction fan 3 in the fan portion 27 strikes the fan cover 26 and is directed toward the proximal end side in the axial direction. It is formed so as to flow in the flow path 37 toward the base end side in the axial direction, and air sent to the base end side through the exhaust flow path 39 is applied to the outer surface of the motor 5 to cool the motor 5. In addition, the exhaust from the discharge port 31 is sent away from the base end of the housing 1 in a direction away from the blade 2 at the tip, so that the user does not feel bothered by the exhaust.

  The hair cutter having the above configuration is further detachably mounted with a cutting height adjustment attachment 41 as shown in FIGS. This attachment 41 has a comb portion 43 protruding from a half-cylindrical base 42 that is slidably mounted in the longitudinal direction on the outer surface of the housing 1 of the hair cutter body. In this structure, the outer surface is mounted on one side 1b (that is, the front portion) opposite to the one side 1a (that is, the back portion) on the side where the suction case 14 is mounted. Therefore, the attachment / detachment and protrusion amount changing operation of the suction case 14 on the one side 1a side and the attachment / detachment and sliding operation of the attachment 41 on the other side 1b side are performed independently without interfering with each other.

  The attachment 41 is divided in half into a pair of concave grooves 44 (see FIGS. 2 and 3) formed so as to extend in the longitudinal direction on both sides between the one side 1a side and the other side 1b side of the housing 1. The both ends of the cylindrical base 42 are slidably fitted to be held slidably on the outer surface of the housing 1. Then, a locking button 45 (FIG. 1) that is slidable and urged in a protruding direction by a coil spring (not shown) on the back side of the housing 1 and covered with the attachment 41. This locking button 45 is inserted into one of a plurality of locking holes (not shown) formed in the inner surface of the attachment 41 with a predetermined distance in the longitudinal direction. In this structure, the slide is held at any slide amount set in a plurality of stages.

  It should be noted that both end portions of the comb portion 43 of the attachment 41 have a shape that always covers both end portions of the blade portion 2 in the reciprocating direction regardless of the sliding amount of the attachment 41. That is, the both side end portions are extended to a position where the blade portion 2 is hidden in a side view and cover both side ends of the blade portion 2 to prevent the hair cut by the blade portion 2 from scattering. It is designed to play the role of an anti-scattering wall.

  In order to cut the hair using the hair cutter with the attachment 41 attached, first, the attachment 41 is appropriately slid with the operation button 30 turned off, and the attachment 41 is housed at a desired slide position. 1 to hold. When a plug (not shown) of an AC adapter is inserted into a plug insertion hole 47 provided in the base end of the housing 1 and the operation button 30 is turned on, the motor 4 of the hair cutting unit A and the suction force are generated. Electric power is supplied to the motor 5 of the part C so that the movable blade 12 of the blade part 2 is reciprocally slid relative to the fixed blade 11 in the hair cutting part A, and the suction is generated in the suction force generating part C. The fan 3 is rotationally driven to suck the air in the hair suction portion B into the suction force generation portion C and generate wind force discharged from the discharge port 31.

  Here, when the hair cutter body is moved while the back side of the comb portion 43 of the attachment 41 is applied to the head of the haircut person, the hair is sequentially cut by the blade portion 2, and the cut hair is the blade portion. 2 is sucked into the hair suction path 6 of the hair suction section B together with outside air from the suction port 13 opened at a position close to 2, and the sucked outside air is sucked into the suction force generation section C through the filter 40 and sucked. The hair is sequentially stored in the hair suction path 6. The air sucked into the suction force generating part C passes between the motor part 5 and the housing 1 after passing through the fan part 27 and the diffuser part 28 as described above, and is discharged from the outlet 31 at the base end part to the outside. Discharged.

  Here, in this example, since the suction fan 3 which is a centrifugal fan is provided in the suction force generation part C as a suction force generation means in the hair suction part B, a strong suction force is provided even if it is small. In addition, the air sent from the suction fan 3 to the downstream side can be gradually restored to static pressure by the diffuser portion 28 and sent out with high efficiency without loss. Therefore, the hair cutter of this example can exhibit a high suction force without increasing the size of the motor 5, and is a hair cutter capable of powerfully sucking cut hair even if it is small. .

  The attachment 41 may be slid in the longitudinal direction when changing the cutting height, and the upstream block 19 of the suction case 14 may be slid in the longitudinal direction when changing the protruding amount of the suction port 13. . Since the attachment 41 and the suction case 14 are structured to be supported independently on the one side 1a side and the other side 1b side of the outer surface on the front end side where the hair cutting part A of the housing 1 is disposed, the attachment / detachment operation of both 41 and 14 is performed. And slide operations are not affected by each other.

  Here, instead of the attachment 41, another form of attachment 41 'as shown in FIG. 12 may be used. The attachment 41 'is structured to be slidably locked to the front end portion of the housing 1, and a plurality of types of attachments 41' having different heights of the comb portion 43 'are prepared and appropriately replaced to obtain a cutting height. Is adjustable.

  After the haircut is finished, the operation button 30 is turned off to stop the reciprocating drive of the blade part 2 and the rotational drive of the suction fan 3, and the suction case 14 is removed from the housing 1 and the hair accumulated in the hair suction part B is discarded. That's fine. Here, in this example, by removing the suction case 14, the entire portion from the suction port 13 in the hair suction part B to the vicinity of the suction fan 3 (immediately before the filter 40) is opened, and the hair suction path 6 is opened. It is possible to efficiently and reliably discard the hair stored inside.

  For example, when hair is cut around the ear, the attachment 41 is used without being attached. At this time, the area around the suction port 13 of the suction case 14 comes into contact with the head of the haircut person and becomes an obstacle. 19 is retracted. Thus, the amount of protrusion of the suction port 13 can be changed in accordance with the use site, which is convenient for the user.

BRIEF DESCRIPTION OF THE DRAWINGS The whole hair cutter of the example in embodiment of this invention is shown, (a) is a rear view, (b) is XX sectional drawing of (a). It is a perspective view of a hair cutter same as the above. It is a perspective view of the state which made the discharge port of the hair cutter same as the above retracted. It is a perspective view of the state which removed the suction case of the hair cutter same as the above. The suction case same as the above is shown, (a) is a rear view, and (b) is a sectional view of a connecting portion. The parts of the suction case are shown, wherein (a) is a rear view of the downstream block, and (b) is a front view of the upstream block. It is a perspective view of the fan block incorporated in the hair cutter same as the above. The parts of the fan block are shown, wherein (a) is a perspective view with the fan cover removed, and (b) is a perspective view of the diffuser portion. The state which attached the attachment to the hair cutter same as the above is shown, (a) is a rear view, (b) is a side view, (c) is a side view at the time of changing cutting height. It is a perspective view of a hair cutter same as the above. It is a perspective view at the time of changing the cutting height of a hair cutter same as the above. It is a perspective view which shows the state which attached the attachment of another form to the hair cutter same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Housing 1a Single side 1b Single side 2 Blade part 6 Hair suction path 13 Suction port 14 Suction case 19 Upstream block 20 Downstream block 41 Attachment

Claims (1)

A hair cutter body having a hair cutting blade at its tip is provided with a hair suction passage for sucking hair cut by the blade portion, and the hair suction passage is detachable on one side of the housing of the hair cutter body. An attachment for adjusting the cutting height is mounted on the other side of the housing opposite to the housing so as to be slidable in the suction direction independently of the attachment / detachment of the suction case. In the hair cutter, the attachment has a comb portion projecting from a half-cylindrical base that is slidably mounted in the longitudinal direction of the hair cutter body, and both end portions of the comb portion are attached to the attachment. extending at all times side view regardless of the sliding amount to a position where the blade portion is hidden to form a hair scattering prevention wall, the upstream block Toko with the suction casing, a suction opening at the tip The upstream block is slidable along the suction direction with respect to the downstream block fixed to the housing of the hair cutter body independently of the slide of the attachment. hair cutter characterized that you form a hair suctioning section to accumulate the hair with the inner surface and the housing outer surface of the hair clipper main body of the block.

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