JPH04348787A - Hair cutter - Google Patents

Abstract

PURPOSE:To prevent the hair cutter from occurrence of such a trouble as cutting height is set erroneously and hair is cut excessively by constituting the hair cutter so that turn-on/turn-off of a power source and an adjusting operation of cutting height by a slide of an attachment can be executed by a single operation, and also, the previous curring height can be stored. CONSTITUTION:In the hair cutter in which a cutting height adjusting attachment 2 is connected to an operating piece 4 for turning on and turning off a power source switch attached so as to be freely slidable to a main body 10 and the attachment 2 slides together with the operating piece 4, a switch contact part is formed by a contact spring 43 and a conductive piece 51 provided on the operating piece 4 and a substrate 50 provided in the main body, and also, a contact conducting position changing member for varying a turn-on position of the switch contact part by the contact spring 43 and the conductive piece 51 in the slide direction of the attachment 2 is provided.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair cutter for cutting hair and beards, and more particularly to a hair cutter having a cutting height adjustment function.

0002

[Prior Art] In order to be able to adjust the cutting height (length of hair remaining on the scalp and face) with a hair cutter, a method is generally used as shown in Japanese Patent Application Laid-Open No. 101282/1982. In this method, an attachment equipped with a comb formed of comb-like teeth is attached to the outer surface of the hair cutter, and this attachment is slidable in the longitudinal direction of the hair cutter, so that the tip of the comb of the attachment is attached to the outer surface of the hair cutter. The distance between the blade and the cutting edge of the hair cutter is variable, and when this distance is lengthened, the cutting height is high.
When shortened, the cutting height is lowered.

[0003] In providing such an attachment, the one disclosed in the above publication connects the attachment with a slide handle provided for turning on and off the power, and turns the power on and off simply by sliding the slide handle. The cutting height can be adjusted by sliding the attachment.

0004

[Problem to be Solved by the Invention] In this case, it is easy to use in that it is possible to adjust the cutting height and turn the power on and off with a single operation, but on the other hand, it has the following problems. ing. In other words, even if the cutting height is set to a certain level, once the power is turned off, the attachment will return to its initial position, and in order to return to the previous cutting height, the user must The user has to remember the cutting height and adjust the cutting height so that the attachment is at the same point, which often leads to incorrect cutting height settings and over-cutting. Become.

[0005] In the case where the power on/off and the sliding operation of the attachment are performed separately, although the attachment does not return to the initial position when the power is turned off, it is still necessary to move the attachment even once or to clean the hair waste. If the attachment is removed at any time, returning to the original cutting height will depend on the user's memory. Of course, if the attachment could be fixed at a certain cutting height, the cutting height would not change inadvertently, but it would be difficult to adjust the cutting height and , it becomes impossible to easily remove the attachment to clean the hair debris.

[0006] The present invention has been made in view of the above points, and its purpose is to enable turning the power on/off and adjusting the cutting height by sliding the attachment in one operation, and to improve the efficiency of the conventional method. To provide a hair cutter that can store the cutting height and prevents the situation of erroneously setting the cutting height and cutting too much.

[0007]

[Means for Solving the Problems] The present invention has a main body provided with a blade at one end, and a mowing height adjusting device that is slidably attached to the main body and whose sliding direction is in the direction of the cutting edge of the blade. It consists of an attachment and
In a hair cutter in which the above-mentioned attachment is connected to an on/off operator of a power switch provided in a slidable manner on the main body, and the attachment slides together with the operator, a contact spring provided on the operator and a board provided in the main body; The main feature is that a switch contact part is formed with the conductive piece, and a contact conduction position changing member is provided that changes the ON position of the switch contact part by the contact spring and the conductive piece in the sliding direction of the attachment. ing.

According to the present invention, not only can the power be turned on and off by sliding the operator, but also the cutting height can be adjusted, and by sliding the contact conduction position changing member, the power can be turned on and off. Therefore, by adjusting the contact conduction position changing member to a position that provides a preferable cutting height, it is possible to prevent over-cutting.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on the illustrated embodiments. The blade block 3 is attached to one end surface of a rectangular tube-shaped main body 10 that has a built-in main body 10, and the attachment 2 is placed over the outer surface of the part of the main body 10 that has a slightly smaller external shape on this one end side. It is configured.

The blade block 3 is composed of a blade base 30, a comb-shaped fixed blade 31 fixed to this, and a comb-shaped movable blade 32 pressed against the fixed blade 31 by a presser spring 33. By engaging the eccentric shaft 7 of the motor 6 with the engagement recess 34 provided in the movable blade 32, the motor 6
The rotational motion of the movable blade 32 is converted into a reciprocating motion, and the movable blade 32 reciprocates with respect to the fixed blade 31.

As shown in FIGS. 2 and 3, the attachment 2 for adjusting the cutting height has a rectangular tube shape, and
The main body 10 is provided with a comb 20 composed of a plurality of parallel connecting pieces connecting the opening edges facing each other to the opening at one end.
It is attached to the main body 10 so as to be slidable in the longitudinal direction. And on the inside of this attachment 2,
Two engaging parts, a first engaging part 21 and a second engaging part 22, are formed, and a groove 23 continuous to the gap between the combs 20 is formed on one surface. The first engaging portion 21 is formed as a recess on the inner surface of the other end of the attachment 2,
The second engaging portion 22 is formed as a recess on the inner surface facing the first engaging portion 21 .

To cut the beard, the hair cutter 1 may be moved while keeping the inclined surface of the comb 20 of the attachment 2 in contact with the face. The beard can be cut to a cutting height set by the distance between the tip of the comb 20 and the blade edge. On the other hand, an operator 4 and a second operator 8 are attached to the main body 10. The operator 4 attached to the surface of the main body 10 where the cutting edge of the blade block 3 is located at the tip is slidable in the longitudinal direction of the main body 10, and has an engaging hook 40 integrally protruding from one end in the sliding direction. At the same time, a pair of click legs 42, 42 are integrally provided projecting from the other end side that enters into the main body 10, and a contact spring 43 is attached to one surface of the portion located inside the main body 10.

As shown in FIG. 3, the other second operator 8 is attached to one side of the main body 10 so as to be slidable in the longitudinal direction of the main body 10, and has a leading edge and a trailing edge. It has a parallelogram shape with sloped sides that match the rear edge of attachment 2, and is shown in Figures 7 and 8.
As shown in FIG. 2, a pair of hooks 80, 80 are provided that protrude into the main body 1 through a long hole 13 formed in the main body 10. It engages with the engagement window 85 at. The rib 82 provided along the edge of the second operator 8 slides and guides the second operator 8 by fitting into the groove 14 formed in the main body 10 . Preventing the second control element 8 from lifting off from the main body 10, preventing the second control element 8 from hitting the attachment 2 when it is slid, and further preventing the second control element 8 from coming off when a fall shock or the like is applied. Together with the hooks 80, 80, this prevents.

[0014] In addition, FIG. 8(a), FIGS. 18 and 19
The reason why the pair of hooks 80, 80 are staggered in the front-rear direction of the main body 10 as shown in FIG. Both ends of the elongated hole 13 can be tilted, that is, the entire length of the elongated hole 13 to be hidden by the second operating element 8, that is, the sliding amount of the second operating element 8 can be increased. It's for a reason.

The sliding contact plate 84, which slides in the longitudinal direction of the main body 10 within the main body 10 in response to the sliding operation of the second operator 8, has a plurality of contact members 9 attached in parallel and an elastic click member. It is integrally equipped with legs 86 and is disposed between one surface of the board 50 on which the storage battery 5 is mounted and a portion of the operator 4 located inside the main body 10.

Each contact member 9 attached to this slide contact plate 84 is U-shaped, as shown in FIG. 10, and a contact spring 91 is formed at the tip of one piece, and a contact spring 91 is formed at the tip of the other piece. A bent piece 92 with protrusions 93 is formed on both side edges, and when the bent piece 92 is press-fitted into the engagement hole 88 formed in the second operator 8, the rib 87 of the slide contact plate 84 is inserted.
, 87 by heat sealing, and at this time, one piece of each contact member 9 on the bending piece 92 side is located on the side of the slide contact plate 84 facing the operator 4, so that the contact spring 43 can freely come into contact with it. The conductive piece 90 is configured and the substrate 50
The contact spring 91 located on the side opposite to the contact spring 91 contacts a plurality of conductive pieces 51 arranged in parallel on the substrate 50 . Note that the contact spring 91 of the contact member 9 is always in contact with the conductive piece 51 on the board 50 regardless of its sliding position, but the contact spring 43 is in contact with the conductive piece 51 on the board 50.
Depending on the mutual position with respect to the conductive piece 90, it is determined whether the conductive piece 90 is in contact with the conductive piece 90 or separated from the conductive piece 90. The protrusion 93 provided on the bent piece 92 bites into the inner surface of the engagement hole 88 to prevent the conductive piece 90 from lifting off from the slide contact plate 84. Since the bent piece 92 is inserted into the engagement hole 88, the contact member 9 does not shift in the sliding direction when the sliding contact plate 84 slides.

Now, when the operator 4 and the second operator 8 are in the position shown in FIG. 3, the contact spring 43 and the conductive piece 90 and the contact spring 91 and the conductive piece 51 are in the positional relationship shown in FIG. Since the spring 43 is separated from the conductive piece 90 which is electrically connected to each conductive piece 51 through the contact spring 91, the motor 6 and the storage battery 5 are in an OFF state in which the motor 6 and the storage battery 5 are disconnected. Also, at this time, the engagement hook 40 of the operator 4 is attached to the attachment 2.
is not engaged with the first engaging portion 21 of the attachment 2.
is positioned at a position where the second engaging portion 22 engages with a protrusion 15 protruding from the surface of the main body 10 opposite to the surface on which the operator 4 is installed.

From this state, when the operator 4 is moved one step toward the blade side as shown in FIG. 12, the engaging hook 40 engages with the first engaging portion 21, and the operator 4 and the attachment 2 are connected. , and at this time, as shown in FIG. 13, the contact spring 4
3 short-circuits between the conductive pieces 51 on the board 50 through the contact member 9, the power switch is turned on, and the motor 6
is energized, and the movable blade 32 in the blade block 3 is driven. When the operator 4 slides enough to turn the power switch on and off, the attachment 2 does not move at all.

If the operator 4 is moved further toward the blade from this state, the attachment 2 will be pushed by the operator 4 and the projection 15
The comb 20 is slid after disengaging from the second engaging portion 22, and the distance between the cutting edge and the tip of the comb 20 is set by the operator 4.
It increases sequentially according to the amount of slide. Moreover, if the operator 4 is slid in the opposite direction, the depth of the groove 18 on the surface of the main body 10 into which the engaging hook 40 is fitted is shallow and the first
Since the engagement between the engagement portion 21 and the engagement hook 40 is maintained, the attachment 2 is also slid in the opposite direction by being pulled by the operator 4. During this time, the contact spring 43 is in sliding contact with the conductive piece 90 of the contact member 9, and the power source remains on. Therefore, even during use, the cutting height can be easily changed by moving the attachment 2. The current cutting height can be determined by checking the main unit 10.
Since the scale described in is displayed on the groove 23 of the attachment 2, it can be easily grasped. Further, when the operator 4 and the attachment 2 are returned to the first stage, the protrusion 15 of the main body 10 engages with the second engagement portion 22 of the attachment 2, and the engagement hook 40 is fitted. Since the depth of the groove 18 on the surface of the main body 10 is deep, if the operator 4 is pulled back further from this position, the connection between the attachment 2 and the operator 4 is released. For this purpose, the attachment 2 can be removed and the blade block 3 can be cleaned.

[0020] Here, a certain cutting height, for example ■
In the illustrated example in which the cutting height can be adjusted in six stages ranging from ~■, if the cutting height at the fourth stage ■ is preferable, the operator 4 located at the fourth stage ■ The second operator 8 may be slid until the alignment mark 81 provided on the second operator 8, which also serves as a finger rest, matches the alignment mark 41 which also serves as a finger rest. As a result, the sliding contact plate 8 that slides together with the second operator 8
4 will be located at the position shown in FIGS. 14 and 15. In this state, simply pulling the operator 4 back to the third stage ■ will cause the contact spring 43 to separate from the conductive piece 90 and turn off the power. becomes. Furthermore, when the second operator 8 is in the above position, when the operator 4 is slid from the initial position shown in FIGS. 16 and 17, the contact spring 43 is not activated until the operator 4 reaches the fourth stage ■. It is turned on by contacting the conductive piece 90, so even if the cutting height from the previous use is unknown, if the operator 4 and attachment 2 are extended to the point where the power is turned on, The cutting height at that time is the same value as the previous use, so there is no possibility of reducing the cutting height and causing over-cutting.

The positioning of the operator 4 and the attachment 2 over the plurality of stages is such that the pair of click legs 42, 42 formed on the operator 4 are aligned with the main body 1 as shown in FIG.
This is done by contacting both wavy side surfaces of the click boss 16 formed on the inner surface of the 0. Also, the second operator 8
As shown in FIG. 5, the slide contact plate 84 is also positioned in multiple stages by the click leg 86 protruding from the slide contact plate 84 contacting one side of the click boss 16. By sharing the click boss 16 between the two, it is possible to maintain the positional relationship between the operator 4 and the slide contact plate 84 in a predetermined state, and to reduce the space for arranging parts. In addition, since there is a pair of click legs 42 and only one click leg 86, the width of the click leg 86 is made wider than the click leg 43, so that the operating force between the operator 4 and the second operator 8 is increased. Furthermore, the shape of the click boss 16 itself is slightly different between the part where the click leg 43 contacts and the part where the click leg 86 contacts, so that the spring constant of the click leg 43 and the spring constant of the click leg 86 are made equal. The difference between the two is corrected. The direction of deflection of these click legs 43, 86 is determined by the contact springs 43, 91.
The reason why the direction is perpendicular to the direction of deflection of the click legs 43 and 86 is to prevent the deflection of the click legs 43 and 86 from affecting the spring loads of the contact springs 43 and 91.

In addition, in the illustrated hair cutter, in order to shorten the overall length, the attachment 2 is advanced the most to achieve the highest cutting height, and the second operator 8 is
When it is positioned at its most retracted position, as shown in FIG. However, in actual use, as shown in FIG. Since the tip is used with the tip inserted into the interior of the attachment 2, there is no possibility that hair debris will accumulate in the gap and make it difficult to slide the second operator 8 due to the hair debris.

In the embodiment shown in FIGS. 20 to 26, a push button 47 is provided on the operator 4 in the above embodiment, and an engagement hole 89 into which the push button 47 can be fitted is provided in the slide contact plate 84. It is something. When the slide contact plate 84 is located at the lowest position in the figure, if the operator 4 is moved upward one step and the push button 47 is pushed in, the push button 47 fits into the engagement hole 89 and the operator 4 and the slide contact plate 84 are connected. If the operator 4 is moved further upward in this state, the slide contact plate 84 will also move upward as shown in FIGS. 24 and 25. In other words, the sliding contact plate 84 can be moved to the desired position without separately operating the second operator 8, and if the user releases the push button 47 when returning the operator 4, the position shown in FIG. As shown in 26, the operator 4 can be returned with the slide contact plate 84 in the required position.

Another embodiment is shown in FIGS. 27 to 32. This uses a spacer 84' having an opening 95 in place of the slide contact plate 84 in the above embodiment, and the spacer 84' here includes the contact spring 43 and the conductive piece 5.
1, and allows the contact spring 43 to come into contact with the conductive piece 51 through the opening 95. If the operator 4 is moved one step upward from the initial state shown in FIG. 29, as shown in FIG. If the spacer 84' is moved upward by operating the button 47 or moving the operator 4 further upward while pressing the push button 47, the position of the operator 4 when the contact spring 43 contacts the conductive piece 51 changes. It is something that will be done. 31 and 32 show the state when the spacer 84' is moved upward and the operator 4 is returned to its initial state. As shown in FIG. 33, the opening 95 in the spacer 84' may have a short length and allow the contact spring 43 to contact the conductive piece 51 at only one position.

In FIGS. 34 and below, the alignment mark 81 on the second operator 8 is formed as a protrusion that is slidable in the longitudinal direction, and the alignment mark 81 is formed on the main body 10 side.
1 is provided with a plurality of lock grooves 19 in which the slide contact plate 8 can be freely engaged, and the alignment mark 81 is engaged with the lock groove 19 as shown in FIG.
4 or spacer 84' can be locked in place.

[0026]

[Effects of the Invention] As described above, in the present invention, the cutting height is changed by sliding the attachment in conjunction with the operation of the power on/off control.
The mowing height can be easily adjusted by sliding the attachment with the hand holding the main body, and inadvertent movement of the attachment can be easily suppressed.Moreover, by sliding the contact conduction position change member. This allows you to switch the slide position of the operator and attachment at which the power is turned on.
By setting the position of the contact conduction position changing member so that the power is turned on at the position that provides the desired cutting height, even if you move the attachment with the operator or remove it to clean hair debris. , the position of the attachment that provides the appropriate cutting height is memorized, which prevents the user from accidentally resetting the cutting height and causing excessive cutting.

In providing the slide contact plate as a contact conduction position changing member, the slide contact plate is arranged between the operator and the board, and the switch part between the operator and the slide contact plate is connected to the slide contact. By stacking it on the current-carrying part between the board and the board, these parts can be accommodated without increasing the width of the main body, and the width of the main body can be made narrower like a hair cutter for beards. A sliding contact plate can be installed without any problem even in cases where the following is required.

Furthermore, if the direction of deflection of the contact springs in the switch section is made to coincide with the direction of deflection of the contact springs in the current-carrying section, it is possible to prevent contact failures due to individual variations in the contact springs. By providing a connecting member that can freely engage and disengage the sliding contact plate and the operator, the sliding contact plate can be easily placed in a predetermined position.

Furthermore, if the contact conduction position changing member is formed of a spacer, the number of required parts can be reduced.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of an embodiment of the present invention.

FIG. 2 is a front view of the same as above.

FIG. 3 is a cutaway side view of the same as above.

FIG. 4 is a front view of the same as above with the attachment removed.

FIG. 5 is a cross-sectional view showing the back side of the slide contact plate same as above.

FIG. 6 is a cross-sectional view showing the rear side of the operator same as above.

FIG. 7 is a horizontal cross-sectional view of the same as above.

FIG. 8 shows the second operator, (a) is a front view;
(b) is a side view.

FIG. 9 shows a sliding contact plate; (a) is a front view, (b) is a side view, and (c) is a rear view.

FIG. 10 shows the contact member attached to the sliding contact plate, (a) is a plan view, (b) is a front view, and (c) is a top view.
) is a side view.

FIG. 11 is an explanatory diagram of the positional relationship between the switch section and the current-carrying section in the state shown in FIG. 1;

FIG. 12 is a longitudinal cross-sectional view of the operator moved one step.

FIG. 13 is an explanatory diagram of the positional relationship between the switch section and the current-carrying section in the state shown in FIG. 10;

FIG. 14 is a longitudinal sectional view when the operator and the attachment are set in the fourth stage and the slide contact plate is positioned in the fourth stage.

FIG. 15 is an explanatory diagram of the positional relationship between the switch section and the current-carrying section in the state shown in FIG. 14;

FIG. 16 is a longitudinal sectional view when the slide contact plate is positioned at the fourth stage and the operator and attachment are returned to their initial positions.

FIG. 17 is an explanatory diagram of the positional relationship between the switch section and the current-carrying section in the state shown in FIG. 16;

FIG. 18 is a cutaway side view in a state where only the operator is operated.

FIG. 19 is a cutaway side view of the second operating element aligned with the operating element.

FIG. 20 is a longitudinal cross-sectional view of another embodiment.

FIG. 21 is a front view of the same as above.

FIG. 22 shows a sliding contact plate, in which (a) is a front view, (b) is a side view, and (c) is a rear view.

FIG. 23 is a horizontal sectional view.

FIG. 24 is a longitudinal sectional view when the operator and the attachment are set at the fourth stage and the slide contact plate is positioned at the fourth stage.

FIG. 25 is a cutaway side view.

FIG. 26 is a longitudinal cross-sectional view.

FIG. 27 is a cross-sectional view showing the rear side of the slide contact plate of another embodiment.

FIG. 28 shows a spacer, in which (a) is a front view, (b) is a side view, (c) is a rear view, and (d) is an end view.

FIG. 29 is an explanatory diagram of the positional relationship between the switch section and the spacer in an initial state.

FIG. 30 is a longitudinal cross-sectional view.

FIG. 31 is a longitudinal cross-sectional view of the state after changing the contact conduction position.

FIG. 32 is an explanatory diagram of the positional relationship between the switch section and the spacer.

FIG. 33 is a front view of another spacer.

FIG. 34 shows another example of the second operator, in which (a) is a front view, (b) is a side view, and (c) is an enlarged sectional view.

FIG. 35 is a cutaway side view.

FIG. 36 is a cutaway side view when locked.

[Explanation of symbols]

2 Attachment 3 Blade block ４　　　　Controller 43 Contact spring 50 Board 51 Conductive piece 84 Slide contact plate 90 Conductive piece 91 Contact spring

Claims (5)

[Claims] Claim 1: Consists of a main body with a blade at one end, and an attachment for adjusting the cutting height that is slidably attached to the main body and whose sliding direction is in the direction of the cutting edge of the blade. In a hair cutter in which the above-mentioned attachment is connected to an on/off operator of a power switch provided in the hair cutter and the attachment slides together with the operator, a contact spring and a conductive piece provided on the operator and a board provided in the main body are used. A hair cutter comprising a contact conduction position changing member that forms a switch contact part and changes the ON position of the switch contact part by a contact spring and a conductive piece in the sliding direction of an attachment. 2. The contact conduction position changing member is a sliding contact plate that is disposed between a board provided in the main body and the operator and is slidable in the same direction as the operator. A switch section consisting of a contact spring extending in the sliding direction and a conductive piece with which the contact spring slides is provided between the operator and one surface of the sliding contact plate facing opposite to the operating element, and a switch section is provided between the substrate and the other surface of the sliding contact plate. Claim 1 characterized in that a current-carrying part is provided in said contact spring that extends in said sliding direction and includes a conductive piece with which said contact spring comes into sliding contact.
Hair cutter as described. [Claim 3] The sliding contact plate has a conductive piece for the switch section or the current-carrying section on one side of the sliding contact plate, and a contact spring for the current-carrying section or the switch section on the other side. 3. The hair cutter according to claim 2, wherein the contact springs of the current-carrying part are deflected in the same direction. 4. The hair cutter according to claim 2, wherein the operating element includes a connecting member that allows the sliding contact plate and the operating element to be engaged with and separated from each other. 5. The contact conduction position changing member is a spacer that is disposed between a board provided in the main body and the operator and is slidable in the same direction as the operator, and is a spacer that is slidable in the same direction as the operator. 2. The hair cutter according to claim 1, wherein the spacer interposed between the spring and the conductive piece has an opening for bringing the contact spring and the conductive piece into contact.