JPS5924305Y2 - Electric razor with trimmer mechanism - Google Patents

Description

[Detailed explanation of the idea] 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, the operation button for the trimmer mechanism and the operation button for turning the power on and off are separate, making it difficult to assemble due to the large number of parts and poor operability. .

The object of the present invention is to eliminate the above-mentioned drawbacks and to provide an electric razor with a trimmer mechanism that is easy to assemble and easy to use.

The electric razor with a trimmer mechanism of the present invention will be described below with reference to the drawings.

In FIGS. 1 to 8, reference numeral 1 denotes a housing in which a power source such as a storage battery can be housed, 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 convex window 8 consisting of a large hole 6 and a small hole 7 is formed on the front wall 5 of the housing 1, and sliding grooves 9 are provided on both sides of the large hole 6. In addition, step portions 10, 10 are formed on the inner surface of the upper portions of both sides of the small hole portion 70.

Further, an engaging protrusion 1 extending inward is provided at the upper edge of the large hole 6.
1 and 11 are provided protrudingly, and a locking piece 12 is provided protruding in the same direction from one side of the alternating hole portion 7, and the locking piece 12 is provided with a rectangular insertion hole 13, and a locking piece 12 is provided in the same direction. The upper edge of the stopper 12 has a small hole 7
It is formed as a tapered surface 12a that slopes toward the bottom edge.

Reference numeral 14 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 15 as is well known. It is provided so that it can reciprocate via a drive rod 17.

Reference numeral 18 denotes a trimmer mechanism that is attached obliquely to the net blade 3 as a whole on one side of the outer cutter frame 4, and includes a moving plate 19 and a trimmer base 20.

The moving plate 19 has a large concave cutout 21 with a tapered bottom surface, and guide tabs 23 on both sides 22 and 22 that engage in the sliding grooves 9 of the housing 1.
, 23 are provided protrudingly.

Further, an enlarged portion 24 is protruded from the lower back surface of the moving plate 19, and recesses 25.2 are provided on both sides of the enlarged portion 24.
5 is formed, and engagement recesses 26, 26 are provided on the lower back surfaces of both side portions 22.22.

Further, on both sides of the trimmer base 20, there are L-shaped recesses 20a, 20a into which the engaging protrusions 11, 11 on the upper edge of the large hole 6 formed in the front wall 5 of the housing 1 can be inserted. and both sides 22.2 of the moving plate 19.
A rotating shaft 29.29 is horizontally protruded from the lower part 27 and is pivotally supported in a shaft hole 28.28 provided in the side part 22.22.

Further, a torsion spring 30 is wound around one rotating shaft 29 and has one end fixed to the moving plate 19 and the other end fixed to the trimmer base 20.
The trimmer base 20 is provided so as to rotate and protrude relative to the trimmer base 20.

Further, on the lower edge of the trimmer base 20, protrusions 31, 31 that are engaged in the recesses 25, 25 of the moving plate 19 are provided to protrude downward, and a blade that is bent into an L-shape is provided at the tip. A fixed blade 32 having a section is fixed, and a movable blade 33 which is similarly bent into an L shape and has a slidable blade part inside the blade part of the fixed blade 32 is installed in a well-known manner.

The movable blade 33 is engaged with a trimmer driver 34,
The trimmer drive element 34 itself is provided so as to be able to engage with the drive rod 17 during movement.

35 is a switch plate that is slidably attached to the housing 1, and has a recess 2 of the moving plate 19 at its upper end.
5.25 and comes into contact with the protrusions 31, 31 of the trimmer base 20, and the protrusions 37, 37 that define the recess 36 in which the enlarged portion 24 is received protrude upward, and the protrusions 3
7. Engagement recess 2 of moving plate 19 on both sides of 37
6, 26 are provided with engaging protrusions 38,38 that engage with them.

Further, on the upper part of the switch plate 35, a button sliding window 39 is provided.
A recess 40 is formed, and fixing pins 41, 41 are implanted in the four corners of the recess 40, and a notch 40a is bored in a part of the peripheral wall.

Reference numeral 42 designates a switch button which is attached to the housing 1 so as to be movable up and down, and the button portion 43 is provided so as to protrude from the button sliding window 39 and to be able to slide horizontally within the button sliding window 39. .

Further, on the back surface of the switch button 42, a fixing pin 46.46 is protruded to fix a switch electrode plate 45 having a pair of contact portions 44.44.

Further, on one side of the switch button 42, the recess 40 is provided.
The locking piece 1 protrudes from the notch 40a and is located on the side of the small hole 7-
A locking protrusion 47 that can be engaged with the square engagement hole 13 drilled in 2 is horizontally protruded, and the end surface of the locking protrusion 47 is connected to the locking piece 12.
The tapered surface 12a is formed as an inclined surface 48 so as to be able to slide on the tapered surface 12a.

49 is a lock switch that is projected from the switch button 42 (L52), and when the lock protrusion 51 is pushed in against the spring force of the extrusion spring 50, the lock protrusion 51 is inserted into the recess 40 by the extrusion spring 50. The formed protruding groove 53
It is provided so that it can escape from the guide groove 54 and move within the guide groove 54.

55 is a fixing pin 41.41 so as to close the recess 40.
a switch cover fixed to the switch button 4;
2, the contact portion 44.4 of the switch electrode plate 45
Connecting piece 56.56 having a contact part on the inner surface that can be contacted with 4.
and 57 are attached.

The connecting pieces 56, 56 and 57 are connected to the power supply and the motor 2 when the switch button 42 is slid, respectively, and the motor 2 is connected to the power supply when the switch button 42 is slid.
The wires are suitably connected so that it can be driven.

Further, a housing 1 is provided on both sides of the upper part of the switch plate 35.
Hidden plates 58 and 58 that can be seated are expanded on the stepped parts 10 and 10 on both sides of the small hole part 7, and a notch part 59 is formed so that the entire upper part of the roof is bent inward, and a cut part 59 is formed in the lower part. a protrusion 60 that engages with and disengages from a protrusion (not shown) on the inner surface of the housing 1 and provides a click action when the switch plate 35 moves up and down;
60 is attached.

Further, reference numeral 61 denotes a rotating shaft suspended within the housing 1, into which a ratchet wheel 62 and a star gear 63 are inserted, and a pressure spring 64 is wound around it. Rotating shaft 6 via pin 65
1, its ratchet surface 66 is opposed to the ratchet protrusion 67 of the star gear 63, and the spring force of the pressing spring 64, one end of which is locked to the fixing pin 68, can be engaged. There is.

The ratchet surface 66 and the ratchet protrusion 67 are formed as a one-way clutch surface.

Further, a corner 69 is provided at the end of the rotating shaft 61, and is formed to be engageable with an engagement square groove 70 of the housing 1, and a spring support piece 71 attached to the housing 1, for example.
It is pressed and held by a recess 73 of a plate spring 72 whose both ends are fixed to a plate spring 71 .

Furthermore, the operation of the present invention will be explained.

The lock protrusion 51 is now protruded from the through hole 52 of the switch button 42 under the spring force of the extrusion spring 50, and the protrusion groove 53
When the lock switch 49 is engaged, the locking protrusion 47 protruding from the notch 40a provided in the recess 40 of the switch plate 35 engages the locking piece 12 provided in the small hole 7 of the large window 8. The switch plate 35 is engaged in the square hole 13 to prevent the switch plate 35 from moving and being pushed in, thereby ensuring that the switch plate 35 is kept in the OFF state.

Next, when the button portion 43 of the upper switch button 42 with the lock protrusion 51 pushed in and the lock switch 49 removed from the protrusion groove 53 is slid within the button sliding window 39, the switch button 42 is moved into the recess 40 of the switch plate 35. The stop protrusion 47 is removed from the square engagement hole 13, and the switch electrode plate 45 and a suitable contact portion of the switch cover 55 are brought into contact with each other, and the motor 2 is driven.

When the motor 2 is driven, the eccentric cam 16. The inner cutter 14 is reciprocated on the inner surface of the net blade 3 via the drive rod 17, allowing normal shaving operation.

Also, in this state, since the stopper protrusion 47 has come off from the square engagement hole 13, the switch plate 35 can be moved upward.
If the moving plate 19 is slid upward, the engaging protrusion 3 will also fit into the engaging recess 26°26 of the moving plate 19.
8.38 are engaged, the tonoma base 20 connected to the moving plate 19 is guided and moved upward by the sliding grooves 9, 9 via the guide ears 23, 23, as shown in FIG. The net blade 3 is moved from the position shown in FIG. 7 to the position shown in FIG.

At the same time as the trimmer base 20 approaches the net blade 3, the trimmer driver 34 engages with the drive rod 17, and the movable blade 33 slides on the inner surface of the fixed blade 32, causing the fixed blade 32 and the movable blade 33 to shave. It can sometimes cut long beards or curly hair, improving the shaving effect.

When the trimmer base 20 approaches the net blade 3, the large hole 6
The engaging protrusions 11, 11 of the L-shaped recesses 20a, 20a
Since the trimmer mechanism 18 is engaged with the trimmer mechanism 18, rattling of the trimmer mechanism 18 can be reliably prevented.

On the other hand, as described above, if the switch button 42 is pushed inward at the position where the switch button 42 is moved in the horizontal direction,
Since the switch plate 35 has a notch 59 made of cedar bark, the upper part of the switch plate 35 begins to incline inward.

If the switch button 42 is further pushed down sufficiently, the protrusions 37 of the switch plate 35 will be moved to the protrusions 31 of the trimmer base 20.
, 31, and since the trimmer base 20 itself is pivotally supported by the moving plate 19, the trimmer base 20
is rotated counterclockwise around the rotating shafts 29, 29, and the star gear 63 is rotated clockwise, so that the protrusions 31, 3
1 is engaged between the teeth of the star gear 63 to reach the position shown in FIG.

At this time, the trimmer drive element 34 is engaged with the drive rod 17, so the movable blade 33 slides on the inner surface of the fixed blade 32, and the trimmer base 20 is sufficiently spaced from the net 1-blade 3, so the trimmer mechanism 18 can be used uniquely to realize the edge shaving operation.

Further, while the spring force of the torsion spring 30 is applied to the trimmer base 20, the star gear 63 is meshed with the ratchet wheel 62 so that it is allowed to rotate only in one direction, so even if a load is applied to the trimmer mechanism 18, The trimmer base 20 and the star gear 63 are reliably engaged without any play.

In addition, if the switch button 42 is pushed further inward from the position shown in FIG.
At this time, the rotating shaft 61 is moved in the direction of the arrow X against the spring force of the leaf spring 72, and the protruding piece 31 of the trimmer base 20 is released from the star gear 63, and the trimmer base 20 is moved by the spring force of the torsion spring 30. The force allows it to return to the position shown in FIG.

According to the electric razor with a trimmer mechanism of the present invention configured as described above, the trimmer mechanism and the switch plate for turning on and off the power are connected through the engagement recess and the engagement protrusion. The trimmer mechanism can be operated and the power turned on and off using a single switch plate, which reduces the number of parts and improves ease of assembly.
In addition, when the trimmer mechanism is brought close to the net blade, the trimmer mechanism is gripped without wobbling, and overall usability is extremely good, which is a distant relative.

[Brief explanation of drawings]

Figure 1 is a front view of the electric razor with trimmer mechanism of the present invention.
FIG. 2 is a sectional view of the same, and FIGS. 3 to 6a. b is a partially exploded perspective view of the same, and FIGS. 7 and 8 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...
...Small hole, 8...Large window, 9...
Sliding groove, 10...Step part, 11...Entering protrusion, 12...Locking piece, 12a...Tapered surface, 13... ...Enter square hole, 14...
Inner blade, 15... Push-up spring, 16... Eccentric cam, 17... Drive rod, 18... Trimmer mechanism, 19... Moving plate, 20
... Trimmer base, 20a ... L-shaped recess, 21 ... Major cutout, 22 ... Side part,
23... Guide ear piece, 24... Ampulla, 25... Concave portion, 26... Engagement concave portion,
27...Lower, 28...Shaft hole, 29.
... Rotating shaft, 30 ... Torsion spring, 31
... Protruding piece, 32 ... Fixing force, 33 ...
...Movable blade, 34...Trimmer drive element, 35
...Switch plate, 36...Recess, 37
...Protrusion piece, 38...Engagement protrusion, 39.
...Button sliding window, 40...Recess, 40
a...Notch, 41...Fixing pin, 4
2...Switch button, 43...Button part, 44...Contact part, 45...Switch electrode plate, 46...Fixing pin , 47...
... Stopping protrusion, 48 ... Inclined surface, 49 ...
... Lock switch, 50 ... Extrusion spring, 51
....Lock protrusion, 52 ....Through hole, 53
...Protrusion groove, guide groove, 55 ... Switch cover, 56° contact piece, 58 ... Hidden plate, 59 ... Notch, protrusion , 61...rotating shaft, 62...ratchet wheel, star gear, 64...
... Push-up spring, 65 ... Fixed pin, ratchet surface, 67 ... Ratchet collapse, fixed pin, 69 ... Corner, 70 ... ... Engagement square groove,
Spring support piece, 72...Plate spring, 73...
・Concavity.

Claims (1)

[Scope of utility model registration request] 1. A trimmer mechanism is provided in the housing, and an inner blade is slidably disposed on the inner surface of the net blade, and the trimmer mechanism is installed in the housing so that it can approach the net blade, and the trimmer mechanism can be rotated and projected with respect to the housing. In the electric razor provided in the above, a locking protrusion is provided on one side of the housing and the trimmer mechanism, and a recess into which the locking protrusion is engaged when the trimmer mechanism approaches the net blade is formed on the other side. An electric razor 62 with a trimmer mechanism has locking protrusions 11, 11 protruding from the edge of a large window of the housing that exposes the trimmer mechanism, and the locking protrusions 11, 11 are engaged with the sides of the trimmer mechanism 18. 1-shaped recess 20a, 2
0a is formed. An electric razor with a trimmer mechanism according to claim 1 of the claimed utility model registration.