JPH07265U - Electric razor with trimmer - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention is a trimmer capable of eliminating unnecessary disconnection of a power switch that occurs when a trimmer is used.
The purpose is to provide an electric shaver. [Structure] An engaging piece 18b is formed by utilizing a part of the auxiliary operation knob 11 on a switch auxiliary plate 16 which is connected to the switch knob 5 and slides together with the switch knob 5. Cut-out portions 24 and 30 that engage and disengage the engaging pieces 18b and 18b are provided at opening edge portions of the through-hole 23 through which the auxiliary operation knob 11 penetrates in the wall portion, which are on and off positions of the power switch. When the slide knob 5 is slid to the off position and the on position of the power switch, the slide knob is locked at each position by engagement. Thus, when the trimmer knob 7 is slid to use the trimmer 6, the switch knob 5 does not move in the off direction even if a reaction force that moves the switch knob 5 in the off direction is applied. become.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electric razor with a trimmer, which has a vertical slide type switch knob for powering on / off and a vertical slide type trimmer knob for operating a trimmer on both sides of a razor body.

[0002]

[Prior art]

 For electric razors, there are slide-type switch knobs on both sides of the razor body for turning on and off the power of the motor that drives the inner blade, and for operating the trimmer in a protruding state and a retracted state. There is a slide type trimmer and a type with a trimmer.

The electric razor has a structure in which the thumb holding the razor body is used to turn the power on and off, and the remaining fingers are used to perform the operation of projecting and retracting the trimmer.

In the reciprocating electric razor as shown in FIG. 6, as shown in FIG. 12, the razor body 1 is gripped by the box-shaped body case 1a. When the thumb 3 and the remaining finger 4 are arranged, a plate-shaped switch knob 5 is provided slidably in the vertical direction on one of both side portions where the thumb 3 and the remaining finger 4 are arranged, and a trimmer 6 for operating the trimmer 6 on the other side The knob 7 is provided slidably in the vertical direction.

[0007] Thus, only by the movement of the fingertips of the hand holding the main body case 1a, the switch knob 5 and the trimmer knob 7 are slid, respectively, so that the shaving operation and the cut-up operation can be performed. ing.

That is, normally, when the switch knob 5 is slid to the upper position, the power switch is turned on to excite the motor and drive the shaving blade portion 1b attached to the razor body 1. When it is slid to the lower position, the power switch is turned off to demagnetize the motor and stop the shaving blade 1b.

Further, the trimmer knob 7 is integrated with the trimmer case 8, and when the trimmer knob 7 is slid to the upper position, the trimmer case is as shown in FIGS. 10 and 14. The trimmer blade portion 6a at the upper portion of 8 projects upward, and the power receiving portion 9a at the lower portion of the trimmer lever 9 built into the trimmer case 8 and the power connecting portion of the motor (not shown). ) Is connected to transmit the power of the motor to the trimmer blade portion 6a. When it is slid downward, the trimmer blade portion 6a of the trimmer 6 returns to its original position and the power transmission of the motor to the blade portion 6a is cut off.

By the way, the electric razor having the above-mentioned switch knob 5 is switched from the OFF state to the ON state unexpectedly when the switch knob 5 is interfered with other objects during transportation, carrying, etc. by other objects. It may be displaced and become in an operating state.

Therefore, in order to prevent such an operating state, usually, the switch knob 5 is provided with a lock mechanism 10 for holding the switch knob 5 in the OFF state. Even if it interferes with other objects, it is not displaced to the ON side.

In such a lock mechanism 10, for example, the switch knob 5 is provided with an auxiliary operation knob 11 which is displaced together with the switch knob 5 in the on / off direction of the power switch.

Specifically, the lock mechanism 10 has a structure as shown in FIGS. 7 to 11.

Explaining the structure of the lock mechanism 10, a rectangular concave portion 12 having a width dimension corresponding to the width length of the plate-shaped switch knob 5 is formed on the side surface portion of the main body case 1a. There is. The switch knob 5 is placed on the inner bottom surface of the recess 12.

The recess 12 extends in the vertical direction. As a result, the entire switch knob 5 can be displaced in the recess 12 in the vertical direction.

The switch knob 5 has an elongated hole 13 extending in the width direction at the center. Further, on the back surface of the switch knob 5, a pair of leg portions 14, 14 are provided so as to be located on both sides of the elongated hole 13. In addition, outward claws 15 1 and 15 2 are formed at the tip ends of the legs 14 and 14.

A switch auxiliary plate 16 is superposed on the bottom surface of the concave portion 12 exposed inside the main body case 1a.

The switch auxiliary plate 16 has a frame-shaped support seat 17 extending in the width direction of the recess 12 as shown in FIG. On the side of the recessed portion 12 side of the support seat 17, strip-shaped rib pieces 18 (movers) are arranged in a direction perpendicular to the support seat 17 along the width direction.

The rib piece 18 is elastically supported so as to float from the central portion of the support seat 17 by elastically displaceable branch portions 19 extending from the long sides 17 a, 17 a of the support seat 17. As a result, the rib piece 18 can be displaced in the direction of retracting from the same position. A pair of steps 20, 20 is formed on both sides of the tip of the rib piece 18 so as to leave a portion corresponding to the elongated hole 13. The tip of the rib piece 18 remaining in the center constitutes the auxiliary operation knob 11. Further, the pair of engaging pieces 18b, 18b are formed by the pieces remaining at both ends of the rib piece 18.

A pair of notches 21 and 21 are formed at the inner edge portions of the short sides 17 b and 17 b forming the support seat 17 at positions corresponding to the legs 14 and 14. As shown in FIG. 11, the opening edges of the notches 21 1, 21 and the claws 15, 15 are engaged with each other through through holes 22, 22 provided in the bottom wall 12 a of the recess 12. Thereby, the switch knob 5 and the switch auxiliary plate 16 are connected.

According to this connection, the auxiliary operation knob 11 slidably penetrates through the through hole 23 provided in the bottom wall 12a of the recess 12 and the elongated hole 13 of the switch knob 5.

The through hole 23 is located at the position A of the auxiliary operation knob 11 when the switch knob 5 is arranged at the power switch OFF position and the auxiliary operation knob when the switch knob 5 is arranged at the power switch ON position. The opening is over the area Z surrounded by the position B of 11. This allows the switch knob 5 to slide between the off position and the on position of the power switch.

Further, notches 24, 24 into which the engaging pieces 18b 1, 18b can be fitted are provided at the lowermost ends of both widthwise edges of the through hole 23 at the position A. Therefore, only at the position A 1, the entire rib piece 18 can be fitted and inserted into the bottom wall 12 a of the recess 12.

Reference numeral 23 a is a cutout portion provided at the edge of the through hole 23 for allowing the branch portion 19 of the auxiliary switch plate 16 to pass when the switch knob 5 is in the off position of the power switch.

According to such a configuration, the locking pieces 18b, 18b are provided with the cutouts 24, 24 only when the switch knob 5 is in the off position as shown by "switch knob in off state" in FIGS. And insert. By this insertion, the movement of the power switch of the switch knob 5 in the on / off direction is restricted.

This fitting is continued by the elastic force of the branch portions 19, 19 of the auxiliary switch plate 16, and the switch knob 5 at the off position of the power switch is held so as not to move in the on / off direction.

Then, from this state, the auxiliary operation knob 11 projecting from the switch knob 5 is pushed against the elastic force of the branch portions 19 and 19 as shown in “Switch knob in ON state” in FIGS. 10 and 11. Then, push the locking pieces 18b, 18b until they come off the notches 24, 24 to make them slidable, and slide them together with the switch knob 5 over the razor body 1 to turn on the power switch. .

Of course, if the switch knob 5 is slid downward from this state, the locking pieces 18b and 18b and the cutouts 24 and 24 are fitted again at the point where the power switch is in the off position. , Lock the switch knob 5 at the same position.

In other words, in the switch knob 5, the auxiliary operation knob 11 protruding from the switch knob 5 resists the elastic force of the branch portions 19 and 19 so that the locking pieces 18 b and 18 b are removed from the cutout portions 24 and 24. You cannot slide to the on position of the power switch unless you push it to the position where it will come off.

As a result, even if the switch knob 5 interferes with another object during transportation or carrying, it will not be displaced to the ON side.

[0029]

[Problems to be solved by the device]

 However, according to the electric shaver using the lock mechanism 10, the power switch may be turned off when the trimmer 6 is used while the power switch is turned on.

That is, when shaving with a reciprocating electric shaver, the thumb 3 is usually placed on the switch knob 5 and the other finger 4 is placed on the trimmer knob 7 as shown in FIGS. 12 and 13. And hold the grip portion 2 of the razor body 1.

Then, from this state, while pushing the auxiliary operation knob 11 with the fingertip of the thumb 3, the switch knob 5 is slid upward, that is, to the ON position of the power switch to operate the motor.

At this time, a downward force acts as a reaction on the remaining fingers 4.

Since the trimmer knob 7 is in the retracted position when the power switch is turned on, there is no problem even if the above-mentioned downward direction is applied to the trimmer knob 7.

However, when attempting to use the trimmer 6 during such motor operation, the power switch is turned off under such a downward acting force.

Specifically, when the trimmer 6 is used during motor operation, the thumb 3 is usually placed on the trimmer knob 7 as shown in FIGS. Change the razor body 1 so that the other finger 4 is placed on the switch knob 5 that has become.

Then, from this state, the trimmer knob 7 is slid upward by the movement of the fingertip of the thumb 3.

However, the movement of the switch knob 5 which is in the ON state at this time is not restricted in the ON / OFF direction of the power switch. That is, since the engaging pieces 18b and 18 are simply slidably stacked on the bottom surface of the bottom wall 12a by being pushed in, the switch knob 5 is in a slidable state.

Therefore, the switch knob 5 is pushed down by the downward force acting on the finger 4 when pushing up the trimmer knob 7.

That is, if the trimmer 6 is used while gripping, the power source of the electric razor is turned off and the operation of the motor is stopped.

In this case, the razor body 1 has to be held again and the switch knob 5 has to be turned on, which is inconvenient.

The present invention has been made in view of such a situation, and an object thereof is to provide a trimmer capable of eliminating unnecessary disconnection of a power switch which occurs when the trimmer is used. To provide an electric razor.

[0042]

[Means for Solving the Problems]

 In order to achieve the above object, an electric shaver with a trimmer according to the present invention includes a moving member that is displaced in the on / off direction of a power switch together with a switch knob, and is movable at the on / off position of a power switch by engaging and disengaging the moving member. And a lock mechanism having a lock portion for holding each child.

[0043]

[Action]

 According to the electric razor with a trimmer of the present invention, when the slide knob is operated to slide in the on or off direction of the power switch to turn the power of the electric razor on and off, the slider is displaced together with the slide knob.

As the slide knob reaches the on position or the off position, the mover engages with the lock portion at the on position or the off position. Then, the slide knob is held at the ON position and the OFF position of the power switch.

This means that the slide knob is locked at each of the off position and the on position.

Therefore, when the trimmer is used, the power switch does not turn off even if a reaction force such as sliding it in the off direction is applied to the slide knob arranged at the on position.

[0047]

【Example】

 Hereinafter, the present invention will be described based on a first embodiment shown in FIGS.

However, in the drawings, the same parts as those described in the above-mentioned “Prior Art” are designated by the same reference numerals, and the description thereof will be omitted. In this section, different parts (main parts of the invention) Will be explained.

That is, the present embodiment uses the structure of the lock mechanism 10 described in the section “Prior Art” so that the switch knob 5 can be held even at the ON position of the power switch.

Specifically, as shown in FIGS. 1 and 4, the engaging pieces 18 b and 18 b of the rib piece 18 are provided at the uppermost ends of both widthwise edges of the through hole 23 at the position B. Notch portions 30 and 30 (corresponding to a lock portion) that can be fitted are provided. As a result, not only at the position A but also at the position B, the engaging pieces 18b, 18b can be fitted into the bottom wall 12a of the recess 12 as shown in FIGS.

That is, the switch knob 5 is held not only at the power switch off position but also at the power switch on position by inserting the engaging pieces 18b, 18b into the notches 30, 30. become.

Further, a cutout portion 32, 32 for allowing the branch portions 19, 19 to pass therethrough is provided at the upper end edge of the through hole 23, and when the auxiliary operation knob 11 is arranged at the position A, the branch portion is provided. The portions 19 and 19 do not interfere with the bottom wall 12a.

However, according to the electric shaver having the lock mechanism 10 configured as described above, when the switch knob 5 is in the off position as shown in FIGS. 2 and 3, it moves together with the auxiliary operation knob 11. The locking pieces 18b, 18b are inserted into the notches 24, 24. By this insertion, the movement of the power switch of the switch knob 5 in the on / off direction is restricted.

Since this fitting is continued by the elastic force of the branch portions 19 of the switch auxiliary plate 16, the switch knob 5 at the off position of the power switch is held so as not to move in the on / off direction.

When the switch knob 5 is in the ON position, the locking pieces 18b, 18b are fitted into the notches 30, 30 this time.

Here, this fitting is continued by the elastic force of the branch portions 19 of the switch auxiliary plate 16 as in the case of turning off the power switch.

That is, the switch knob 5 at the ON position of the power switch is held so as not to move in the ON / OFF direction.

This means that the slide knob 5 is locked at each of the off position and the on position of the power switch.

Therefore, with the thumb 3 holding the razor body 1, the switch knob 5 is slid until the power switch is turned on, and the trimmer 6 is used while the electric razor is being used. As shown in FIGS. 14 and 15, put the thumb 3 on the trimmer knob 7, replace the razor body 1 with the other finger 4 on the switch knob 5, and use the thumb 3 to pull the trimmer knob 7. Even when it is slid upward, the switch knob 5 in the operating state does not move in the OFF direction of the power switch due to the reaction force at this time. That is, the power switch is never turned off.

Therefore, it is possible to eliminate the unnecessary disconnection of the power switch of the electric razor that occurs when the trimmer 6 is used, and it is unnecessary to re-hold the switch and operate the switch knob 5 as in the conventional case. Becomes

FIG. 5 shows a second embodiment of the present invention.

In this embodiment, the auxiliary operation knob 11 arranged in the center of the switch knob 5 has a small outer shape, and the auxiliary operation knob 11 is provided so as to be shifted from the center of the switch knob 5 to the periphery thereof.

With this configuration, when the trimmer 6 is operated, the auxiliary operation knob 11 of the switch knob 5 is moved away from the other fingers 4 placed on the switch knob 5, so that the hand of a person who operates the hand considerably. The power switch of the electric razor does not turn off even when the size is different.

In the above-described embodiment, the locking pieces 18b and 18b that form the mover are provided on the knob piece 18, and the notches 24 and 30 that form the lock portion are provided on the edge of the through hole 23. The switch knob 5 is held at each position where the power switch is turned on and off. However, the switch knob 5 is not limited to this structure, and the lock knob using other moving elements and parts constituting the lock section is used to switch the switch knob 5 to the power switch. It may be held at each position where ON and OFF.

Further, in the above-described embodiment, the moving mechanism constituted by the locking piece 18b is provided on the switch knob 5 side, and the lock portion constituted by the notches 24, 30 is provided on the razor body 1 side. However, the lock mechanism in which the mover is provided on the razor body side 1 and the lock part is provided on the mover is not limited to this, but a lock in which both the mover and the lock part are provided on the razor body side is used. It may be a mechanism, and the mounting positions of the mover and the lock part are not limited.

[0066]

[Effect of device]

 As described above, according to the present invention, since the slide knob is locked at each of the off position and the on position, when the trimmer is used, the slide knob is slid in the off direction to the slide knob arranged at the on position. Even if such reaction force is applied, the power switch is not turned off.

Therefore, it is possible to prevent unnecessary disconnection of the power switch which occurs when the trimmer is used.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a structure of a switch knob in an electric shaver with a trimmer according to a first embodiment of the present invention, together with a structure of a lock mechanism for locking the switch knob at an off position and an on position.

FIG. 2 is a side sectional view showing a state in which the lock knob is locked at an on position, an off position, and an intermediate unlocked state by the lock mechanism of the embodiment.

FIG. 3A is a plan sectional view showing a state where the switch knob is locked by the lock mechanism of the embodiment. (B)
Is a plan sectional view showing a state where the same is unlocked.

FIG. 4 is a view for explaining a notch structure which is provided in the main body case and which constitutes the lock portion of the embodiment.

FIG. 5 is a perspective view showing the outer appearance of a trimmer-equipped electric shaver for explaining an essential part of a second embodiment of the present invention.

FIG. 6A is a perspective view showing an external appearance of a reciprocating electric shaver with a normal trimmer as viewed from the front side. (B) is
Similarly, the perspective view which shows the external appearance seen from the back side.

FIG. 7 is an exploded perspective view for explaining a conventional lock mechanism that locks a switch knob used in the electric razor.

FIG. 8 is a view for explaining a notch structure that constitutes a lock portion of the lock mechanism.

9 is a cross-sectional view taken along line XX in FIG. 7 of the switch auxiliary plate that constitutes the lock mechanism.

FIG. 10 is a side sectional view showing a state where the switch knob is locked and an state where the switch knob is unlocked by the lock mechanism.

FIG. 11A is a plan sectional view showing a state where the switch knob is unlocked by the lock mechanism. (B) is
Similarly, the horizontal cross-sectional view showing a locked state.

FIG. 12 is a partially cross-sectional side view showing a state in which a thumb is placed on the switch knob and a finger remaining on the trimmer knob is placed for shaving use, and the shaving body is held by one hand.

13A is a front view showing the state where the switch knob is slid upward with the thumb from the state of FIG. 12 to turn on the power. (B) is a rear view showing the trimmer knob in the same state together with a finger placed on the trimmer knob.

FIG. 14 is a partial cross-sectional side view showing a state in which a thumb is placed on the trimmer knob and a finger remaining on the switch knob is placed, and the shaving body is changed over for use of the trimmer.

15 (a) is a trimmer with a thumb from the state of FIG.
The rear view which shows the time of sliding a knob upwards. (B)
[Fig. 3] is a front view showing the switch knob in the same state together with a finger placed on the switch knob.

[Explanation of symbols]

1 ... Razor main body 1a ... Main body case 2 ... Gripping portion 3 ... Thumb 4 ... Remaining finger 5 ... Switch knob 7 ... Trimmer knob 10 ... Lock mechanism 11 ... Auxiliary operation knob 12 ... Recess 13 ... Long hole 14 ... Leg 15 ... Claw part 16 ... Switch auxiliary plate 18 ... Rib piece 18b ... Engaging piece (mover) 19 ... Branch part 20 ... Step 23 ... Through hole 24 ... Notch part (lock part) 30 ... Notch part (lock part)

Claims (1)

[Scope of utility model registration request] 1. A switch knob for turning a power switch on and off is provided on one side surface of a razor body so as to be vertically slidable, and a trimmer is operated on the other side surface in a vertical direction. In an electric shaver with a trimmer provided with a trimmer knob slidable in an up-and-down direction, a mover that is displaced in the on / off direction of the power switch together with the switch knob, and an on-position of the power switch disengaged from the mover. , And a lock mechanism having a lock portion for holding each of the moving elements in the off position, and the electric shaver with a trimmer.