JP2016154697A - Electric razor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric razor capable of freely manipulating an attitude of the electric razor as user likes, and also performing shaving in a stable state by surely holding a body case.SOLUTION: A razor head 2 is provided in an upper part of a body case 1, and an upper side swelling part 25 and a lower side swelling part 26 are swollen-formed in a state of having an interval between them vertically, at an upper part and a lower part in a front face of the body case 1. A finger hooking recessed part 32 for receiving the thumb is formed continuously to the peripheral edge of the upper side swelling part 25, and a grip recessed part 33 for receiving a part of the thenar is formed along the peripheral edge of the lower side swelling part 26. A finger hooking recessed part 35 for the thumb composed of a rearward recessed-shaped curved surface is formed on a surface of the upper side swelling part 25. The finger hooking recessed part 32 and the grip recessed part 33 are formed of an inward recessed-shaped curved surface, respectively.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a main body case also serving as a grip and an electric razor including a razor head, and is an improvement of the grip structure of the main body case.

  The present applicant has previously proposed an electric razor that can be easily handled during shaving by easily holding the grip portion or changing the posture (Patent Document 1). There, a V-shaped round portion is formed to bulge at the upper part of the front and rear surfaces of the main body case, and an oblique finger receiving surface formed between the round portion and the case surface is positioned above the razor center of gravity. . In use, the main body case can be sandwiched from the front and rear with the thumb placed on the curved portion at the lower end of the round part, and the main body case can be tilted with ease using the fingers other than the thumb. In addition, by tilting the main body case in the front-rear direction while holding the front and rear round parts with the thumb and index finger from the front and rear, the main body case is tilted in the front-rear direction, and the cutting blade surface is placed on the skin surface of the chin. Can be along.

JP 2004-222980 A (paragraph numbers 0034 to 0037, FIG. 1)

  According to the electric razor of Patent Document 1, the grip portion is easily held and the posture is changed and the handling at the time of shaving is performed more easily than an electric razor not provided with a grip structure such as a round portion. be able to. However, since the main body case is sandwiched from the front and rear with the thumb and index finger applied to the curved part at the lower end of the round part, there is no shortage in tilting the main body case in the front-rear direction or the left-right direction. It is not possible to deal with grip modes that vary depending on Therefore, it is not enough to manipulate the electric razor as you like. In addition, since the cross section of the finger receiving surface is formed by a linear inclined surface, the belly of the thumb or forefinger will be in close contact with the finger receiving surface if the thumb or index finger is not firmly applied to the finger receiving surface. You cannot fit your fingers in the state.

An object of the present invention is to provide an electric razor that can be shaved in a stable state by securely holding a main body case by fitting a finger to a grip structure by simply grasping the main body case.
SUMMARY OF THE INVENTION An object of the present invention is to provide an electric razor that can be manipulated as desired by a user while holding the main body case properly and surely while dealing with grip modes that vary depending on the user.

  The electric razor according to the present invention has a razor head 2 at the top of a main body case 1 that also serves as a grip. As shown in FIGS. 1 and 11, a finger hooking recess 32 for receiving a fingertip is formed in a long groove shape on the upper front surface of the main body case 1. As shown in FIG. 5, the finger-hanging recess 32 is formed of an indented curved surface.

  The surface of the main body case 1 and the adjacent edge 47 of the finger hanging recess 32 are inclined with respect to the case center axis P of the main body case 1.

  As shown in FIG. 1, a bulging portion 25 is formed to bulge on the upper front surface of the main body case 1. A finger-hanging concave portion 32 is formed with an indented curved surface at a hem portion continuous with the peripheral edge of the bulging portion 25.

  An upper bulging portion 25 and a lower bulging portion 26 are bulged and formed on the upper and lower sides of the front surface of the main body case 1 with a vertical space therebetween. A grip concave portion 33 for receiving a thumb ball or a finger is formed with an indented curved surface along the inclined peripheral edge of the lower bulging portion 26.

  The peripheral edge of the upper bulging portion 25 is formed in a lower protruding curve shape, and the peripheral edge of the lower bulging portion 26 is formed in an upper protruding curved shape. A finger-hanging recess 32 is formed continuously on the periphery of the upper bulging portion 25, and a grip recess 33 is formed continuously on the periphery of the lower bulging portion 26.

  The finger-hanging recess 32 provided in the upper bulging portion 25 and the grip recess 33 provided in the lower bulging portion 26 are smoothly continued. The finger hanging recess 32 and the grip recess 33 are continuous in an X shape.

  A grip recess 33 is formed in a circular shape along the periphery of the lower bulging portion 26.

  As shown in FIG. 2, a rear-recessed flange portion 29 is formed between the upper bulging portion 25 and the lower bulging portion 26.

  The cross section of the collar portion 29 is formed into a front-projecting corrugated shape, and a ridge portion 45 formed of a back-concave curved surface is formed along the front projecting edge of the corrugation.

  A rear constricted portion 28 corresponding to the flange portion 29 is formed on the rear surface of the main body case 1. The curvature of the ridge portion 45 is set larger than the curvature of the rear constricted portion 28.

  As shown in FIG. 1, laterally narrowed portions 27 are formed on the left and right sides of the main body case 1. A horizontal finger hook portion 36 is formed between the horizontal constricted portion 27 and the finger hook concave portion 32.

  The horizontal finger hook 36 is formed into a petal shape that is long in the vertical direction (see FIGS. 2 and 3). A finger receiving step 42 that curves in a front-projecting manner is formed at the adjacent edge of the finger hanging recess 32 and the horizontal finger hanging portion 36.

  On the surface of the upper bulging portion 25, a thumb-fitting concave portion 35 made of a curved surface having a back-dent shape is formed (see FIG. 1).

  The curvature of the thumb finger recess 35 is set to be smaller than the curvature of the finger recess 32.

  As shown in FIG. 8, a group of rib-like non-slip bodies 38 are formed in the thumb finger-hanging recess 35. A non-slip step 39 is formed at the upper end of the thumb finger-holding recess 35. The length T of the non-slip step 39 is set to be greater than the rib height t of the non-slip body 38.

  In the electric shaver according to the present invention, a long groove-like finger-hanging recess 32 is formed on the front surface of the upper portion of the main body case 1, and the recess 32 is formed of an indented curved surface. As described above, when the finger-hanging concave portion 32 is formed with an indented curved surface, the surface area of the finger-holding concave portion 32 can be increased as compared with the case where the finger receiving surface is formed with a linear inclined surface, and The abdomen and thumb ball can be fitted snugly in a state of being in close contact with the internally recessed finger-hanging recess 32. Therefore, according to the electric shaver of the present invention, it is possible to shave the body case 1 in a stable state by holding the body case 1 firmly by simply gripping the body case 1 and fitting the fingers to the grip structure. Further, since the main body case 1 can be securely held, the posture of the main body case 1 can be freely manipulated as the user desires, and the handling of the electric razor can be improved. Since the finger hanging concave portion 32 is formed in a long groove shape, there is an advantage that the position and posture of the finger when the finger is applied to the finger hanging concave portion 32 can be changed according to preference.

  When the surface of the main body case 1 and the adjacent edge 47 of the finger-holding recess 32 are inclined obliquely with respect to the case center axis P of the main body case 1, the electric razor is tilted back and forth, left and right, up and down, or obliquely. The finger can be received by the edge of the finger-hanging recess 32 when the finger is about to slide. Therefore, the posture change of the main body case 1 can be performed more accurately, and the handling property of the electric razor can be further improved.

  When a finger-hanging recess 32 made of an indented curved surface is formed at the bottom of the bulging portion 25 bulging and formed on the main body case 1, a standard case in which the main body case 1 is grasped by four fingers and thumb balls excluding the thumb In a simple grip mode, the front of the razor head 2 can be directly opposed to the user by naturally placing the thumb on the finger hanging recess 32. Since the internally recessed finger-hanging recess 32 is formed along the peripheral edge of the bulging portion 25, it is possible to emphasize the fact that the bulging portion 25 is bulging, and to increase the stereoscopic effect of the bulging portion 25. There is an advantage that the design effect with which the sharpness is effective can be demonstrated.

  An upper bulging portion 25 and a lower bulging portion 26 are formed to bulge on the upper and lower sides of the main body case 1, and a grip concave portion having an indented curved surface along the round peripheral edge of the lower bulging portion 26. When 33 is formed, in the above-described standard grip mode, the thumb ball or the three fingers excluding the thumb and the index finger can be fitted snugly with the grip recess 33 in close contact. Accordingly, in various grip modes, a finger, a thumb ball, a palm, or the like is brought into close contact with the finger-hanging recess 32 and the grip recess 33, and the body case 1 is more securely held and shaved in a stable state. Can do. In addition, since the posture of the main body case 1 can be changed while the thumb ball or palm cooperates with the fingers, the handling of the electric razor can be further improved.

  When the finger-hanging recess 32 and the grip recess 33 are formed on the periphery of the upper bulging portion 25 formed in the lower protruding curve and the periphery of the lower bulging portion 26 formed in the upper protruding curve, the dominant arm is formed. Even if they are different, since the posture of the main body case 1 can be changed equally, the handleability of the electric razor can be improved. Further, when the main body case 1 is gripped with one hand, the main body case 1 can be gripped in various grip modes according to the user's preference. For example, as shown in FIG. 11 (a), in the grip mode in which the main body case 1 is supported by pinching the left and right with the thumb and forefinger, the main body case 1 is firmly held by bringing the thumb and forefinger into close contact with the grip recess 33. Can be shaved with.

  According to the grip structure in which the finger hanging concave portion 32 and the grip concave portion 33 are smoothly continued in an X shape, the main body case 1 can be fitted in a state in which the thumb is in close contact with the intersecting portion of both the concave portions 32 and 33 to further various grip modes Can be held in. Moreover, since it can respond | correspond to the grip aspect variously changed by a user, the main body case 1 can be hold | maintained appropriately and reliably, and an electric shaver can be freely operated as a user desires.

  When the grip concave portion 33 is formed in a circular shape along the periphery of the lower bulging portion 26, the thumb ball or three fingers excluding the thumb and index finger are brought into close contact with the grip concave portion 33 in the above-described standard grip mode. It can be made to fit in the state to do. Therefore, in various grip modes, the main body case 1 can be securely held and shaving can be performed in a stable state.

  By forming a rear-recessed brim 29 between the upper bulge 25 and the lower bulge 26, the finger-holding concave part 32 and the grip concave part 33 can be smoothly continued on both the left and right sides of the brim 29. Therefore, the thumb and index finger applied to the continuous surfaces of the concave portions 32 and 33 can be fitted in a state of being in close contact with the left and right sides of the flange portion 29.

  When the ridge portion 29 is formed in a cross-sectional corrugated shape and the rear concave ridge portion 45 is formed along the front protrusion edge of the corrugation, the boundary between the curved surfaces on both the left and right sides of the heel portion 29 is clarified, and either one of the curves The posture of the main body case 1 can be changed more accurately by placing a thumb or index finger on the surface.

  When the curvature of the ridge portion 45 is set larger than the curvature of the rear constricted portion 28, it is further clarified that the ridge portion 45 is a boundary between the left and right slopes of the heel portion 29, and the thumb is caught on the left and right curved surfaces of the heel portion 29. The handling property when changing the posture of the main body case 1 can be improved. If the curvature of the rear constricted portion 28 is smaller than the curvature of the ridge portion 45, the index finger and the ring finger become familiar with the rear constricted portion 28 in a state where the grip handle portion 43 is held back and forth with four fingers other than the thumb ball and the thumb. In this state, the wide range of the grip handle portion 43 can be securely held.

  By forming the horizontal finger hook portion 36 between the horizontal constriction portion 27 and the finger hook recess portion 32, the body of the main body case 1 can be held from the left and right sides by bringing the belly of the thumb and the index finger into close contact with the pair of horizontal finger hook portions 36. Compared with the electric razor, the main body case 1 can be securely held and shaved in a stable state.

  If the horizontal finger-hanging portion 36 is formed in a vertically long petal shape, the belly of the thumb and the forefinger are fitted and adhered to almost the entire surface of the left and right horizontal finger-hanging portions 36, and the body case 1 is firmly pinched from the left and right. And can hold. In addition, since the thumb and forefinger can be received by the finger receiving step portion 42 in a state where the main body case 1 is held, the thumb and forefinger can be prevented from slipping, so that the main body case 1 can be securely compared with a conventional electric shaver. Shaving can be performed in a stable state.

  When a thumb finger hanging concave portion 35 having a rear concave curved surface is formed on the upper bulging portion 25, the belly of the thumb is fitted to and closely adhered to the thumb finger hanging concave portion 35, and the main body case 1 is formed with a finger and a thumb ball. Since it can hold firmly, it can shave in a more stable state. When the posture of the main body case 1 is changed, the thumb does not slide.

  The reason for setting the curvature of the thumb-fitting recess 35 to be smaller than the curvature of the finger-holding recess 32 is that the degree of curvature of the thumb-fitting recess 35 is larger than the roundness of the thumb and the thumb is pressed against the thumb-fitting recess 35. This is because the belly of the thumb is greatly deformed in the state and is brought into close contact with the thumb finger-hanging recess 35 in a large area, thereby further securely holding the main body case 1.

  When a group of non-slip bodies 38 is formed in the thumb finger-holding recess 35 and a non-slip step 39 is formed at the upper end of the thumb finger-holding recess 35, the thumb belly closely contacts the anti-slip body 38 and the anti-slip step 39 simultaneously. The main body case 1 can be securely held. If the length T of the anti-slip step 39 is set sufficiently larger than the rib height t of the anti-slip member 38, the thumb belly is pressed against the inclined surface and the inclined upper edge of the anti-slip step 39. Thus, the main body case 1 can be held more securely.

It is a front view of the electric razor which concerns on this invention. It is a side view of the electric razor which concerns on this invention. It is a disassembled side view of the electric razor which concerns on this invention. It is explanatory drawing which shows the outline of the drive structure of an inner blade. It is the front view and sectional drawing of a grip case. It is the sectional view on the AA line in FIG. It is the BB sectional view taken on the line in FIG. It is CC sectional view taken on the line in FIG. It is explanatory drawing which shows the grip aspect of the electric razor at the time of use. It is explanatory drawing which shows another grip aspect of the electric shaver at the time of use. It is explanatory drawing which shows another grip aspect of the electric shaver at the time of use. It is a front view of the electric razor which shows the modification of a grip structure.

Example 1 FIGS. 1 to 11 show Example 1 in which the present invention is applied to a rotary electric shaver. In the present invention, “front / rear”, “left / right”, and “upper / lower” follow the crossing arrows shown in FIG. 1 and FIG. 1 and 2, the electric razor includes a main body case 1 that also serves as a grip, and a razor head 2 provided on the upper portion thereof. A motor 3 and a secondary battery 4 are disposed inside the main body case 1, and a razor head is provided. 2, the inner blade 5 and the outer blade 6 are arranged. As shown in FIG. 4, the rotational power of the motor 3 is decelerated by the gear train 7 and then transmitted to the inner blade 5 via a winding transmission mechanism 8 having a timing belt as a transmission element. As shown in FIG. 3, the gear train 7, the winding transmission mechanism 8, and the motor 3 are assembled to the head frame of the razor head 2. As shown in FIG. 2, the razor head 2 in a normal state is supported in a state of being inclined forward with respect to the vertical center axis of the main body case 1, and can be inclined forward from this state to the side where the forward inclination angle increases. The pair of left and right springs are urged to return so that the forward tilt angle is reduced. 3 and 4, reference numeral 9 denotes a control board, and a power switch 11 that is switched by a switch button 10 and a plurality of LEDs 12 are mounted on the front surface thereof.

  3, the main body case 1 includes a front case 15 and a rear case 16 that are divided into front and rear, and a grip case 17 that covers the front surface of the front case 15, and grips along the dividing line of the front and rear cases 15 and 16. Case 17 covers the surface of front case 15. The front case 15 includes a front upper case 15 a and a front lower case 15 b which are divided into upper and lower parts, and is fixed to the rear case 16 with screws 18. The grip case 17 is fixed to the rear case 16 with a screw 19 screwed from the rear case 16 side at the lower end of the grip case 17 with its upper part and upper and lower halfway parts engaged with the front case 15. A boat-shaped switch panel 20 with a sharp upper and lower part is arranged at the lower part of the grip case 17, and the switch button 10 is arranged near the upper end thereof. On the rear surface side of the main body case 1, there are provided a shaving blade 21 and a slide knob 22 that pushes up the shaving blade 21 to a driving position.

  In order to improve the ease of gripping and fitting when holding an electric razor with one hand during use, the main body case 1 is provided with a grip structure in order to improve the handling of the electric razor. . The grip structure includes an arrowhead-shaped upper bulging portion 25 bulged on the surface of the grip case 17 with a vertical gap, a boat-shaped lower bulging portion 26 surrounding the switch panel 20, It is composed of a laterally narrowed portion 27, a rear narrowed portion 28, and the like. The surface of the switch panel 20 also serves as the front surface of the lower bulging portion 26.

  As shown in FIG. 1, the laterally narrowed portion 27 is formed of an indented curved surface formed on the left and right side surfaces of the grip case 17 and the rear case 16. As shown in FIG. 2, the rear constricted portion 28 is composed of a front concave curved surface formed on the rear surface of the rear case 16, and the lateral constricted portion 27 and the rear constricted portion 28 are smoothly continuous. The peripheral edge of the upper bulging portion 25 in the arrowhead shape is formed in a lower protruding curve, while the peripheral edge of the lower bulging portion 26 in the boat shape is formed in an upper protruding curve. A rear-recessed flange portion 29 is formed between the protruding portions 25 and 26. The upper protrusion 50 located at the uppermost end of the peripheral edge of the lower bulging portion 26 formed in the upper protrusion curve shape is positioned below the constriction center position of the lateral constriction 27. In the grip mode shown in FIG. 11, the index finger and the thumb can be easily placed on both sides of the upper protruding curved portion of the lower bulging portion 26, and the middle finger is placed on the side finger hanging portion 36 and the finger receiving step portion 42. This is to make it easier. As shown in FIG. 7, the cross section of the flange portion 29 is formed in a front-projecting waveform, and a ridge portion 45 formed of a back-concave curved surface is formed along the front projection edge of the waveform.

  The main body case 1 is gripped in a grip manner as shown in FIGS. 9, 10, and 11, for example. In these various grip modes, in order to grasp the main body case 1 in a more preferable grip mode and improve the handling of the electric razor, the hem portions around the upper and lower bulging portions 25 and 26, the side constricted portion 27, etc. In addition, a recess for receiving a finger and a finger hook are provided. Further, in this embodiment, the concave portions and the finger-hanging portions are provided symmetrically around the upper and lower bulging portions 25 and 26 and in the side constricted portion 27 so as to cope with the difference between the right and left of the dominant arm.

  Specifically, as shown in FIG. 5, a finger-hanging recess 32 mainly for receiving the thumb is formed in a long groove shape at the hem portion continuous to the periphery of the upper bulging portion 25, and the lower bulging portion A grip recess 33 for receiving a finger and a thumb ball other than the thumb or a part of the palm is formed in a circular shape along the peripheral edge of 26. Further, as shown in FIG. 1, a bulging wall 34 having an upward expansion shape is formed on the upper surface of the bulging portion 25 on the upper side, and a finger-fitting concave portion 35 having a curved surface having an indented shape is formed at the center thereof. did. As shown in FIG. 3, the thumb finger hanging recess 35 is formed integrally with the front upper case 15 a and is exposed from an opening formed in the bulging wall 34. Further, a horizontal finger hooking portion 36 for receiving the thumb and forefinger is formed between the horizontal constricted portion 27 and the finger hooking concave portion 32.

  As shown in FIG. 5, the finger-hanging recess 32 is formed with an indented curved surface, and similarly, the grip recess 33 is formed with an indented curved surface. Therefore, in the grip modes shown in FIGS. 9A and 9B, the thumb belly (the side with the fingerprint) is fitted to the finger hanging recess 32, and at the same time, the thumb ball or the middle finger, ring finger, and little finger belly are fitted. Can be brought into close contact with the grip recess 33. As shown in FIG. 1, the upper bulging portion 25, the adjacent edge 47 of the finger hanging recess 32, and most of the finger hanging recess 32 are inclined obliquely with respect to the case center axis P. Is formed in an indented shape. Therefore, when the posture of the razor head 2 is changed following the change in the skin surface, the main body case 1 is tilted freely and forward and backward or left and right with the thumb held in close contact with the concave portion 32. be able to. Further, when the posture of the razor head 2 is changed, the thumb does not slip and separate from the finger-hanging recess 32.

  As shown in FIGS. 6 and 8, the thumb-fitting recess 35 for the thumb is formed by a curved surface having a back recess shape, and is formed in a bowl shape when viewed from the front. A group of rib-shaped anti-slip bodies 38 are formed in a multi-stage shape in the thumb-fitting recess 35 for the thumb, and an inclined non-slip step 39 is formed on the upper end of the thumb-fitting recess 35 for the thumb. In the grip mode shown in FIG. 10 (a), the thumb belly can be brought into close contact with the anti-slip body 38 and the anti-slip step 39 at the same time, so that the body case 1 is firmly held and shaved in a stable state. Can be done. As shown in FIG. 8, the length T from the thumb finger-hanging recess 35 to the upper end of the slope of the anti-slip step 39 is set sufficiently larger than the rib height t of the anti-slip body 38. The main body case 1 can be more securely held by pressing the belly of the thumb against the inclined surface and the inclined upper edge of the step portion 39.

  The curvature of the thumb finger recess 35 is set to be smaller than the curvature of the previous finger recess 32. This is because the degree of curvature of the thumb finger-hanging recess 35 is made larger than the roundness of the thumb belly and the thumb belly is greatly deformed in a state where the thumb is pressed against the thumb finger-hanging recess 35. It is for making it adhere | attach in a larger area.

  As shown in FIGS. 2 and 3, the horizontal finger hook 36 is formed in a petal shape that is long in the vertical direction when viewed from the side. A finger receiving step 42 is formed on the adjacent edge of the horizontal finger holding portion 36 and the finger holding recess 32, and this finger receiving step 42 is formed by a front-projecting curved surface. When the main body case 1 is viewed from the front, the horizontal finger hook portion 36 is curved along the outline of the horizontal constricted portion 27. In the grip mode shown in FIG. 10 (b), the belly of the thumb and the forefinger of the index finger are brought into close contact with the pair of horizontal finger hooks 36, so that the main body case 1 can be held and pinched from the left and right, so that compared with a conventional electric shaver. The body case 1 can be securely held and shaved in a stable state. In this grip mode, the thumb and forefinger are received by the finger receiving step 42, so that the thumb and forefinger are prevented from slipping and the main body case 1 can be held firmly. In addition, it is possible to fit with the thumb and index finger in close contact with almost the entire surface of the horizontal finger hook 36. The lateral finger hook 36 is formed integrally with the grip case 17.

  The rear constricted portion 28 is formed corresponding to the formation position of the flange portion 29, and the slide knob 22 is disposed on the upper side of the rear constricted portion 28. The lower side of the side constricted part 27 and the rear constricted part 28 is a grip handle part 43. By grasping the grip handle part 43 with the middle finger, the ring finger, the little finger, and the palm or the thumb ball, the main body case 1 is firmly fixed. Can hold a handful. In order to prevent the fingers of the middle finger, ring finger, little finger, palm and the like from slipping in a state where the grip handle portion 43 is grasped with one hand, anti-skid grooves 44 are formed in a multistage shape below the left and right side constricted portions 27. is there.

  As shown in FIG. 2, the flange portion 29 is formed with a back concave curved surface in a side view, and the front surface of the longitudinal section thereof is formed with a back concave curved surface. Further, as shown in FIG. 7, the cross section of the flange portion 29 is formed into a front-projecting corrugated shape, and a ridge formed of a curved surface having a back-dent shape with the front projecting end rounded along the front projecting edge of the corrugation. A portion 45 is formed. In this manner, by providing the collar portion 29 made of a curved three-dimensional plane between the upper bulge portion 25 and the lower bulge portion 26, the finger-hanging concave portion 32 provided on the upper bulge portion 25 side and The grip concave portion 33 provided in the lower bulging portion 26 continues smoothly through the flange portion 29. Also, the finger-hanging recess 32 and the grip recess 33 are smoothly connected continuously in an X shape at the ridge portion 45.

  Incidentally, the curvature in the cross section of the ridge portion 45 is set to be larger than the curvature in the cross section of the rear constricted portion 28. This clarifies that the ridge portion 45 is a boundary between the left and right slopes of the heel portion 29, improves the catch of the thumb on the left and right slopes of the heel portion 29, and is easy to handle when changing the posture of the main body case 1. It is for improving. In addition, when the curvature of the rear constriction portion 28 is small, the grip handle portion 43 is firmly held in a state where the index finger and the ring finger are familiar with the rear constriction portion 28 in a state where the grip handle portion 43 is held back and forth with four fingers other than the thumb ball and the thumb. Because it can.

  According to the electric razor configured as described above, the user's fingers are fitted to the grip structure simply by grasping the main body case 1 lightly, and the main body case 1 is securely held in various grip modes, and the beard can be stably held. You can shave. Further, by comparing the case where the main body case 1 is gripped in an appropriate grip mode using the finger hanging concave portion 32 and the case where the main body case 1 is gripped without using the finger hanging concave portion 32, the fit feeling is greatly different between the two. The user can realize that the main body case 1 can be securely held in the former grip mode.

  In the grip mode shown in FIG. 9A, the grip handle portion 43 is held and held by the middle finger, the ring finger, the little finger, the thumb ball and the palm, and the finger hook recess 32 and the side finger hook portion 36 are held by the thumb and forefinger. Thus, the main body case 1 can be securely held and the front surface of the razor head 2 can be directly opposed to the user. In this state, the middle finger, the ring finger, the little finger belly, and the thumb ball fit and closely contact with the grip recess 33, and the thumb belly is placed on the finger hook recess 32 and the adjacent edge 47 on the right side in FIG. The index finger fits and adheres closely to the left side finger hooking portion 36 and the side constriction portion 27 on the left side as viewed in FIG. 9A, so that the main body case 1 can be securely held.

  The length of the finger varies depending on the user, but in order to cope with such a situation, the finger hanging recess 32 and the grip recess 33 are formed in a long groove shape along the peripheral edges of the upper and lower bulging portions 25 and 26. For this reason, even when there is a difference in the length of the fingers by fitting and bringing the fingers into close contact with any part of the finger hanging recess 32 and the grip recess 33 in the vertical direction, the main body case 1 can be securely held. In the grip mode shown in FIG. 9A, the body of the main body case 1 is obtained by placing the belly of the thumb on the right slope of the buttock 29 and gripping and holding the grip 43 with the remaining four fingers and the thumb ball. Can be held firmly and the front of the razor head 2 can be directly opposed to the user.

  In the grip mode shown in FIG. 9 (b), the gripping portion 43 is gripped and held by the middle finger, the ring finger, the little finger, the thumb ball and the palm, and the finger-hanging recess 32 is further held by the thumb to secure the main body case 1. In this state, the front surface of the razor head 2 can be directly opposed to the user. The thumb ball in this state is in close contact with the surface of the lower bulging portion 26, and the belly of the thumb fits and closely contacts the left finger resting portion 32 and the adjacent edge 47 toward FIG. The main body case 1 can be securely held. In the grip mode shown in FIG. 9B, the main body case 1 can be securely held in a slanting posture with the belly of the thumb fitted to and in close contact with the horizontal finger hook 36. In that case, it is better to hold and hold the handle part 43 with the palm so as to be wrapped from the front side.

  In the grip mode shown in FIG. 10 (a), the grip handle portion 43 is held back and forth with the index finger, middle finger, ring finger, little finger, and thumb ball, and the thumb belly is applied to the thumb finger recess 35. With the main body case 1 securely held, the front surface of the razor head 2 can be directly opposed to the user. The grip handle portion 43 in this state is gripped and held back and forth by the four fingers excluding the thumb and the thumb ball, and the belly of the thumb fits and comes into close contact with the finger hook recess 35 so that the main body case 1 is securely held. be able to.

  In the grip mode shown in FIG. 10 (b), the main body case 1 can be held by being pinched from the left and right sides by fitting the belly of the thumb and the belly of the index finger into close contact with the pair of horizontal finger hooks 36. In addition, the rear surface of the grip handle portion 43 is supported at the branch portion between the thumb and the index finger, and the main body case 1 is securely held in a three-point support shape, so that shaving can be performed in a stable state. In this grip mode, the finger receiving step 42 is in close contact with the belly of the thumb and the index finger to prevent both fingers from slipping.

  In the grip mode shown in FIG. 11 (a), the index finger and the thumb are applied to both sides of the upper protruding curved portion of the lower bulge portion 26, and the middle finger belly is placed on the side finger hook portion 36 and the finger receiving step portion 42 on the index finger side. The razor head 2 can be held upward while the main body case 1 is securely held by supporting the rear constricted portion 28 with the ring finger. This pen-held grip mode is suitable for shaving the lower side of the jaw as shown in FIG. 11B, and the razor head 2 can be used to change the curved surface of the jaw as compared with other grip modes. It can follow and adhere closely.

  Depending on the user, the main body case 1 may be gripped in a grip mode not shown in FIGS. In such a case, for example, the belly of the finger is in close contact with the grip case 17 in a state that spans both the upper and lower bulging portions 25 and 26 and the finger hanging concave portion 32 or the grip concave portion 33, that is, in an unstable state. To do. Alternatively, the belly of the finger is in close contact with the grip case 17 in an unstable state over both the finger hanging recess 32 and the lateral finger hanging portion 36. In such a grip mode, the finger belly tends to be in close contact with the more stable contact surface side, i.e., any one of the finger hook recess 32, the grip recess 33, and the side finger hook 36 that are easy to fit. Therefore, even if the initial state of gripping the body case 1 is an unstable state, the body case 1 can be gripped in an appropriate grip mode that is easy to grip.

  12 (a) to 12 (d) respectively show modifications of the grip structure according to the present invention, in which the upper and lower bulging portions 25 and 26 and the side constricted portion 27 are omitted and the main body case 1 is removed. Forming. In FIG. 12A, a pair of finger-hanging recesses 32 are formed in the shape of a long groove in a state of being inclined obliquely with respect to the case center axis P on the left and right sides of the front surface of the main body case 1. As described above, as the finger hanging concave portion 32 is inclined, the case surface of the main body case 1 and the adjacent edge 47 of the finger hanging concave portion 32 are also inclined obliquely with respect to the case center axis P. The finger-hanging recess 32 is formed of a curved surface having an inner recess shape or a rear recess shape. When the body case 1 is grasped, the belly of the thumb and the inner surface of the first joint of the index finger fit and closely contact the upper portions of the left and right finger-hanging recesses 32 and the adjacent edge 47, and the thumb ball and a part of the palm are left and right. The main body case 1 can be securely held in a state of being in close contact with the lower part of the finger-hanging recess 32.

  In FIG. 12B, a linear finger-hanging recess 32 is provided at the upper part of the main body case 1, and a linear grip recess 33 is inclined at an angle with respect to the case center axis P at the lower part of the main body case 1. And formed into a long groove shape. The finger hanging recess 32 and the grip recess 33 are inclined in opposite directions. In the state where the body case 1 is gripped, the body of the thumb 1 is secured in a state in which the belly of the thumb fits and adheres to the upper portions of the finger-hanging recess 32 and the adjacent edge 47, and a part of the thumb ball closely contacts the grip recess 33. And can be held.

  In FIG. 12 (c), a finger hanging recess 32 is formed in a U-shaped groove in the upper part of the front surface of the main body case 1. The majority of the U-shaped groove and the adjacent edge 47 are inclined with respect to the case center axis P. In a state where the main body case 1 is gripped, the main body case 1 can be securely held in a state where the belly of the thumb fits and comes into close contact with the concave end of the upper portion of the finger hanging concave portion 32.

  In FIG. 12 (d), a finger-hanging recess 32 is formed on the upper portion of the main body case 1 in a hooked shape, and an inverted U-shaped grip recess 33 is formed on the lower portion of the main body case 1. Most of the inverted U-shaped grip recess 33, the finger-hanging recess 32 and the adjacent edge 47 are inclined with respect to the case center axis P. In the state where the main body case 1 is gripped, the belly of the thumb fits and adheres to the upper portion of the finger hanging concave portion 32, and further, a part of the thumb ball comes into close contact with many portions of the curved concave portion 33. 1 can be securely held.

  In the above embodiment, the finger hanging recess 32 is provided symmetrically along the periphery of the upper bulging portion 25, but it is not necessary, and it is formed only on either the left or right side of the periphery of the upper bulging portion 25. May be. Similarly, the grip recess 33 may be formed only on one of the left and right sides of the peripheral edge of the lower bulging portion 26. Further, the grip recess 33 does not need to be formed in a circular shape along the peripheral edge of the lower bulging portion 26, and is formed in a horseshoe shape along the round peripheral edge of the lower bulging portion 26. Also good. The grip case 17 can be omitted. In this case, the front case 15 may be provided with upper and lower bulging portions 25 and 26, a laterally narrowed portion 27, and the like.

  In the above-described embodiment, the side constricted portion 27 and the rear constricted portion 28 are provided in the middle of the upper and lower portions of the main body case 1 corresponding to the flange portion 29, but it is not necessary, and the main body case 1 has been described with reference to FIG. Thus, the structure which abbreviate | omitted the collar part 29 and both constricted parts 27 * 28 may be sufficient. The application object of the present invention can be applied to a reciprocating electric razor, an electric razor having a vertical rotary blade structure for driving an inner blade around a vertical axis, in addition to a rotary electric razor. Moreover, it is applicable also to the electric razor which is not provided with an outer blade and performs a whisker cutting only with an inner blade. The electric razor does not need to have a structure in which the razor head 2 tilts back and forth or right and left, and may be an electric razor in which the razor head 2 is fixed to the main body case 1 so as not to tilt.

DESCRIPTION OF SYMBOLS 1 Main body case 2 Razor head 17 Grip case 25 Upper bulging part 26 Lower bulging part 27 Horizontal constricted part 28 Rear constricted part 29 Grow part 32 Finger hanging recessed part 33 Grip recessed part 35 Thumb finger hanging concave part 36 Horizontal finger hanging part 45 Ridge part P Case center axis

Claims (15)

An electric razor having a razor head (2) at the top of the body case (1) which also serves as a grip,
On the front surface of the upper part of the main body case (1), a finger-hanging recess (32) for receiving a fingertip is formed in a long groove shape,
An electric shaver characterized in that the finger-hanging recess (32) is formed of an indented curved surface.   The electric shaver according to claim 1, wherein the surface of the main body case (1) and the adjacent edge (47) of the finger-hanging recess (32) are inclined obliquely with respect to the case central axis (P) of the main body case (1). . A bulging portion (25) is bulged on the front surface of the upper part of the main body case (1),
The electric shaver according to claim 1 or 2, wherein a finger-hanging concave portion (32) is formed as an indented curved surface at a skirt portion continuous to the periphery of the bulging portion (25). An upper bulge portion (25) and a lower bulge portion (26) are bulged and formed on the upper and lower sides of the front surface of the main body case (1) with a vertical gap therebetween,
4. A grip recess (33) for receiving a thumb ball or a finger is formed by an indented curved surface along the inclined peripheral edge of the lower bulge (26). The electric razor described in one. The peripheral edge of the upper bulge part (25) is formed in a lower protruding curve, the peripheral edge of the lower bulge part (26) is formed in an upper protruding curve,
A finger-hanging recess (32) is formed continuously around the periphery of the upper bulging portion (25), and a grip recess (33) is formed continuously around the periphery of the lower bulging portion (26). 4. The electric razor according to 4. The finger hanging recess (32) provided in the upper bulge (25) and the grip recess (33) provided in the lower bulge (26) are smoothly and continuously connected.
The electric shaver according to claim 4 or 5, wherein the finger hanging concave portion (32) and the grip concave portion (33) are continuous in an X shape.   The electric shaver according to any one of claims 4 to 6, wherein a grip recess (33) is formed in a circular shape along the periphery of the lower bulging portion (26).   The electric shaver according to any one of claims 4 to 6, wherein a rear-recessed brim portion (29) is formed between the upper bulge portion (25) and the lower bulge portion (26).   The cross section of the flange (29) is formed into a front-projecting corrugated shape, and a ridge (45) consisting of a back-dent-shaped curved surface is formed along the front projecting edge of the corrugation. Electric razor. A rear constriction portion (28) corresponding to the flange portion (29) is formed on the rear surface of the main body case (1),
The electric razor according to claim 8 or 9, wherein a curvature of the ridge (45) is set larger than a curvature of the rear constriction (28). Side constrictions (27) are formed on the left and right of the body case (1),
The electric shaver according to any one of claims 1 to 10, wherein a horizontal finger hooking portion (36) is formed between the horizontal constricted portion (27) and the finger hooking concave portion (32).   The lateral finger hanging portion (36) is formed in a vertically long petal shape, and a finger receiving step portion (42) curved in a forward projecting shape is formed at the adjacent edge of the finger hanging concave portion (32) and the lateral finger hanging portion (36). The electric shaver according to claim 11.   The electric shaver according to any one of claims 3 to 12, wherein a thumb-fitting concave portion (35) made of a curved surface having a concave shape is formed on a surface of the upper bulging portion (25).   The electric shaver according to claim 13, wherein the curvature of the thumb-fitting recess (35) is set smaller than the curvature of the finger-holding recess (32). A group of rib-like non-slip bodies (38) is formed in the thumb finger-hanging recess (35), and a non-slip step (39) is formed at the upper end of the thumb finger-holding recess (35).
The electric shaver according to claim 13 or 14, wherein the length (T) of the anti-slip step (39) is set to be greater than the rib height (t) of the anti-slip body (38).

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