JPS6029510B2 - Electric razor with trimmer mechanism - Google Patents

Description

[Detailed description of the invention] The present invention relates to an electric razor with a trimmer mechanism.

This type of electric razor with a trimmer mechanism not only has a trimmer mechanism but also rotates and protrudes the trimmer mechanism to perform the edge shaving function, and the trimmer mechanism is movable toward the net blade. ,
It is preferable that the hair be shaved with a net blade while cutting long hair. However, in conventional electric razors with a trimmer mechanism, when the trimmer mechanism is brought close to the net blade, the trimmer mechanism and the switch plate that moves the trimmer mechanism are different, so there is a gap on both sides of the switch plate, which makes the appearance I didn't like it.

SUMMARY OF THE INVENTION An object of the present invention is to provide an electric razor with a trimmer mechanism that eliminates the above-mentioned drawbacks and has a good appearance. DESCRIPTION OF THE PREFERRED EMBODIMENTS An electric razor with a trimmer mechanism according to the present invention will be described below with reference to the drawings.
In FIGS. 1 to 10, reference numeral 1 denotes a housing in which a power source such as a storage battery or the like can be housed, and a motor 2 is housed therein, and an outer cutter frame 4 holding an outer cutter, that is, a net cutter 3, is mounted thereon.

Further, a large window 8 having an inverted convex shape is formed in the front wall 5 of the housing 1, and the large hole 6 is made up of a large hole 6 and a small hole 7.
Sliding grooves 9, 9 are provided on both sides of the small hole 7, and stepped portions 10, 10 are formed on the inner surface of the upper portions of both sides of the small hole 7. 1
Reference numeral 1 denotes an inner blade that is slidably installed inside the net blade 3 and is pressed against the net blade 3 by a push-up spring 12 as is well known. It is provided so that it can be reciprocated via a drive paddle 14.

Reference numeral 15 denotes a trimmer mechanism attached to one side of the outer cutter frame 4 as a whole obliquely with respect to the net cutter 3, and includes a moving plate 16 and a trimmer base 17.

The moving plate 16 has a large concave cutout 18 with a tapered bottom surface, and guide tabs 20 are provided on both sides 19, 19 to engage in the sliding grooves 9, 9 of the housing 1.
, 20 are provided protrudingly. Further, the moving plate 16
An enlarged portion 21 is protruded from the lower back surface of the enlarged portion 21.
Concave portions 22, 22 are formed on both sides of the side portion 1.
Engagement recesses 23, 23 are provided on the lower back surfaces of the 9, 19. Further, the trimmer base 17 is connected to the moving plate 1.
6, the lower part 24 has a hole 25 provided in the side parts 19, 19,
Rotating shafts 26, 26, which are pivotally supported by 25, are horizontally protruded. Further, a torsion spring 27 is wound around one of the rotating shafts 26 and has one end fixed to the moving plate 16 and the other end fixed to the trimmer base 17, so that the trimmer base 17 rotates with respect to the moving plate 16. It is arranged to protrude. Furthermore, protrusions 28, 28 are provided at the lower green end of the trimmer base 17 to protrude downward to be engaged with the recesses 22, 22 of the moving plate 16, and an L is provided at the tip.
A fixed blade 29 having a blade portion bent in a letter shape is fixed, and a movable blade 30 is similarly bent in an L shape and has a blade portion that is slidable inside the blade portion of the fixed blade 29. It is installed as is well known. The three movable blades are engaged with a trimmer drive element 31, and the trimmer drive element 31 itself is provided so as to be able to engage with the drive paddle 14 during movement.

Reference numeral 32 denotes a switch plate that is slidably attached to the housing, and has a recess 2 of the moving plate 16 at its upper end.
2 and 22 and engages with the protrusions 28 and 28 of the trimmer base 17, protrusions 34 and 34 that define a recess 33 in which the enlarged portion 21 is received protrude upward, and the protrusions 34 , 34 are provided with engaging protrusions 35, 35 that engage in the engaging recesses 23, 23 of the moving plate 16.

Further, a button sliding window 36 is provided on the upper part of the switch plate 32.
A recess 37 is formed, and fixing pins 38, 38 are fixedly provided at the four corners of the recess 37. 39 is/
- This is a switch button that is attached to the button so that it can move up and down, and the button part 40 is provided so as to protrude from the button sliding window 36 and to be able to slide horizontally within the button sliding window 36.

Further, on the back surface of the switch button 39, fixing pins 43, 43 are protrudingly provided to fix a switch electrode plate 42 having a pair of contact portions 41, 41. 44 is an extrusion spring 45
When the lock protrusion 46 is pushed in against the spring force of the extrusion spring 45 with the lock switch protruding from the through hole 47 of the switch button 39, the protrusion groove 48 formed in the recess 37 It is provided so that it can escape from the guide groove 49 and move within the guide groove 49.

50 is a fixing pin 38, 38 so as to close the recess 37.
a switch cover fixed to the switch button 3;
When moving the switch electrode plate 9, the contact portions 41, 4 of the switch electrode plate 42
Connecting pieces 51, 51 having a contact portion on the inner surface that can be contacted with 1
and 52 are attached.

The connecting pieces 51, 51 and 52 are connected to the power supply and the motor 2 when the switch button 39 is slid, respectively, and the motor 2 is connected to the power supply when the switch button 39 is slid.
The wires are well connected so that the motor is driven. Further, on both sides of the upper part of the switch plate 32, there is a groove that extends to the same extent as the moving plate 16 and can be seated on the stepped portions 10, 10 on the inner surface of both sides of the small hole 7 of the housing, so that when the switch plate is moved, there is a gap on both sides of the switch plate. The shielding plates 53, 53 are extended so as not to cause a Protrusions 55, 55 are attached that engage and disengage with the switch plate (not shown) and provide a click action when the switch plate 32 moves up and down.

Further, reference numeral 56 denotes a rotating shaft suspended within the housing, through which a ratchet wheel 57 and a star gear 58 are inserted, and a pressure spring 59 is wound around the rotating shaft. It is fixed on the rotating shaft 56 via a pin 60, and its ratchet surface 61 is connected to the star gear 58.
The ratchet protruding surface 62 is opposed to the ratchet protruding surface 62, and one end thereof is provided so as to be able to receive the spring force of the pressing spring 59 and engage with the fixing pin 63.

In this case, the ratchet surface 61 and the ratchet protrusion surface 62 are formed as one-way clutch surfaces. Further, a corner portion 64 is provided at the end of the rotating shaft 56, and is formed to be engageable with an engagement square groove 65 of the housing 1, and is formed to be engageable with, for example, spring support pieces 66, 66 attached to the housing 1. It is pressed and held by a recess 68 of a plate spring 67 whose both ends are fixed. The operation of the present invention will be further explained.

If the button portion 40 of the upper switch button 39, which has been removed from the protrusion groove 48 by pushing in the lock protrusion 46, is slid within the button sliding window 36, the switch button 39 will move into the recess 37 of the switch plate 32. move horizontally inside the switch electrode plate 42 and switch cover 50.
The motor 2 is driven by contact with a suitable contact portion of the motor 2.

When the motor 2 is driven, the inner blade 11 is reciprocated on the inner surface of the net blade 3 via the eccentric cam 13 and the drive blade 14, allowing normal shaving operation. Also switch board 3
2 upward, the moving plate 16 also has its engaging protrusions 35, 35 engaged with the matching recesses 23, 23 of the moving plate 16, so that the guide tabs 20, 20
The trimmer base 17, which is guided through the sliding grooves 9, 9) and connected to the moving plate 16, is connected to the second
It moves from the position shown in the figure to the position shown in FIG. 8 and approaches the net blade 3. At the same time as the trimmer base 17 approaches the net blade 3, the trimmer driver 31 engages with the drive rod 14, and the movable blade 30 slides on the inner surface of the fixed blade 29. It can cut long beards and curly hairs when shaving, improving the shaving effect. On the other hand, if the switch button 39 is pushed inward at the position shown in FIG.
Since the notch 54 is formed in the switch plate 32, the upper part of the switch plate 32 begins to incline inward as shown in FIG.

Further, if the switch button 39 is pressed down sufficiently, the protrusions 34, 34 of the switch plate 32 will be moved to the protrusions 28, 34 of the trimmer base 17.
28 and the trimmer base 17 itself is pivotally supported by the moving plate 16, so the trimmer base 17 is rotated counterclockwise around the rotating shafts 26, 26, and the star gear 58 is rotated clockwise, and the projections 28, 28 are engaged between the teeth of the star gear 58 to reach the position shown in FIG. At this time, since the trimmer drive element 31 is engaged with the drive rod 14, the movable blade 30 is slid on the inner surface of the fixed blade 29, and the trimmer base 17 is sufficiently spaced apart from the net blade 3, so that the trimmer mechanism 15 can be moved. It can be used independently to achieve a sharp shaving action. Further, while the spring force of the torsion spring 27 is applied to the trimmer base 17, the star gear 58 is meshed with the ratchet wheel 57 so as to be allowed to rotate only in one direction, so even if a load is applied to the trimmer mechanism 15, Trimmer base 1
7 and the star gear 58 are reliably engaged without any play. In addition, switch button 39 is pressed from the position shown in FIG.
When pushed further inward, the protruding piece 34 of the switch plate 32 hits the star gear 68, and the rotating shaft 56 is moved in the direction of the arrow X against the spring force of the leaf spring 67, causing the protruding piece of the trimmer base 17 to move in the direction of the arrow 28 is released from the star gear 58, and the trimmer base 17 is returned to the position shown in FIG. 2 by the spring force of the torsion spring 27.

According to the electric razor with a trimmer mechanism of the present invention configured as described above, since the upper part of the switch plate for moving the trimmer mechanism is provided in the same place as the trimmer mechanism, there is no gap between both sides of the switch plate when the switch plate is moved. To achieve effects such as not spoiling the appearance.

[Brief explanation of drawings]

FIG. 1 is a front view of an electric razor with a trimmer mechanism of the present invention;
FIG. 2 is a sectional view of the same, FIGS. 3 to 6 a and b are partially exploded perspective views of the same, and FIGS. 7 to 10 are explanatory views of the same operation. 1...Housing, 2...Motor, 3...Net blade, 4
...Outer blade frame, 5...Front wall, 6...
・・Large hole, 7・・・・4・Hole, 8・・・・
Large window, 9...Sliding groove, 10...Step part,
11... Inner blade, 12... Push-up spring, 13.
... Eccentric cam, 14... Drive rod, 15...
...Trimmer mechanism, 16...Moving plate, 17
・・・・・・Trimmer base, 18・・・・Important missing item, 1
9... Side part, 20... Guide ear piece, 21... Enlarged part, 22... Recessed part, 23... Engagement recessed part, 24... Lower part, 25...Keyhole, 2
6... Rotating shaft, 27... Torsion spring,
28... Projection piece, 29... Fixed blade, 30
......Movable blade, 31...Trimmer drive element,
32...Switch plate, 33...Recess, 34
...Protrusion piece, 35...Engagement protrusion, 36.
...Button sliding window, 37...Recess, 38
...Fixing pin, 39...Switch button, 40...Button part, 41...Contact part,
42...Switch electrode plate, 43...Fixing pin, 44...Lock switch, 45...
...Extrusion spring, 46...Lock protrusion, 47...
...Through hole, 48...Protrusion groove, 49...Guide groove, 50...Switch cover, 51, 52...
Connection piece, 53... Hidden plate, 54...
Notch, 55... Protrusion, 56... Rotating shaft, 57... Ratchet wheel, 58...
Star gear, 59... Push-up spring, 60... Fixing pin, 61... Ratchet surface, 62... Ratchet protrusion, 63... Fixing pin, 64...
... Corner part, 65 ... Engagement square groove, 66 ...
...Spring support piece, 67...Plate spring, 68...
...concavity. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10

Claims (1)

[Scope of Claims] 1. In addition to having a trimmer mechanism, an inner cutter is slidably disposed on the inner surface of the net blade, the trimmer mechanism is provided so as to be close to the net blade, and the trimmer mechanism is provided so that it can be rotated and protruded. 1. An electric razor with a trimmer mechanism, characterized in that an upper part of a switch plate for moving the trimmer mechanism is provided with the same width as the trimmer mechanism. 2. A large inverted convex window consisting of a small hole and a large hole is provided in the housing that slidably accommodates the switch plate, and a stepped portion is formed on the inner surface of the small hole. 2. The electric razor with a trimmer mechanism according to claim 1, further comprising a cover plate which can be seated on the stepped portion and has the same width as the trimmer mechanism.