JPS6147989B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pump device used in facial beauty devices and the like.

In conventional pump devices of this type, a separate connecting rod is fixed to the back of the diaphragm with a washer and a nut, a through hole is formed in the connecting rod, an eccentric shaft is fitted into the through hole, and the eccentric shaft is inserted into the connecting rod. It is configured to be driven by a motor. As a result, the structure was complicated, the number of parts was large, and the lifespan was short.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a pump device that is simple in structure, has a small number of parts, and has a long service life.

That is, in this invention, a diaphragm is formed of a soft material, a connecting rod is formed on the outside surface of the pump chamber in a bulging manner, a hole is formed at the tip of the connecting rod, and a cylindrical bearing having a retaining collar at both ends is inserted into the hole. It is characterized in that it is pushed out and fitted, an eccentric shaft is fitted into this bearing, and this eccentric shaft is driven by a motor. In this way, by forming the connecting rod also from a soft material, the connecting rod can also reciprocate in the lateral direction, so it can follow the movement of the eccentric drive and smoothly transmit the reciprocating motion to the diaphragm. Furthermore, by providing a bearing, the rotational motion of the eccentric shaft can be smoothly transmitted to the connecting rod, and since the bearing can be mounted extremely easily, assembly is easy and the mounted state can be maintained reliably. As a result, the structure is simpler and the number of parts is smaller than in the past, making it possible to achieve a longer life.

A facial beauty device to which an embodiment of the present invention is applied is shown in FIGS. 1 to 19. That is, in FIG. 1, this facial beauty device has an outer shell composed of an upper cover 1, a lower cover 2, and a rear end cover 3, and the upper and lower covers 1,
2 to slidably hold the power switch 4,
A rotation/suction switching switch 5 is slidably provided on the upper cover 1.

In FIG. 2, a suction cover 7 is attached to a suction cup 6.
is installed.

In FIG. 3, a fixed brush 9 is rotatably provided on the outer periphery of the rotating brush 8, and flocks 10 and 11 are provided on the upper surfaces of the rotating brush 8 and the fixed brush 9, respectively.
has been planted.

Next, the internal structure will be explained with reference to FIGS. 4 to 19. A motor 13 is attached to the block base 12, and a gear 15 is fixed to an output shaft 14 of the motor 13. An eccentric shaft 16 is integrally formed at the tip of this gear 15. A cylindrical fixed shaft 17 is integrally formed on the block base 12. A pump chamber 20 is constructed by sandwiching a rubber diaphragm 19 between the block base 12 and the substrate 18. The cylindrical interior 21 of the cylindrical fixed shaft 17 communicates with the pump chamber 20 via an intake valve 22 formed integrally with the diaphragm 19 . An exhaust valve 23 and a connecting rod 24 are integrally formed on the diaphragm 19.
A flanged bearing 25 is fitted onto this connecting rod 24, and an eccentric shaft 16 is fitted into this flanged bearing 25. An opening 26 is formed in the substrate 18, and a valve plate 28 is attached to a bending plate 27 that opens and closes the opening 26. This bending plate 27 is biased by a leaf spring 29 fixed to the rotation/suction switching switch 5 to perform a seesaw movement.

A crown gear 30 is rotatably supported on the cylindrical fixed shaft 17 and meshes with the gear 15. In addition, the cylindrical fixed shaft 1
A bush 31 is mounted on the end of the shaft 7, and elastic claws 32 of the bush 31 elastically support the crown gear 30.
A ring-shaped packing 33 is provided on the outer periphery of the bush 31, and this ring-shaped packing 33 holds the suction cup 6 in an airtight state.

A projection 35 and a rib 36 are formed on the shaft portion 34 of the crown gear 30, and the recess 38 of the elastic pawl 37 of the rotating brush 8 engages with the projection 35, and the rib 3
By engaging the cut groove 39 with the rotary brush 6, the rotary brush 8 can be attached to the crown gear 30. In this case, the fixed brush 9 is fixed to the lower cover 2.

Next, the assembly method will be explained mainly with reference to FIG. A mechanism block in which a motor 13, a substrate 18, a diaphragm 19, a crown gear 30, a bush 31, etc. are attached to a block base 12 is held between upper and lower covers 1 and 2. In this case, the block base 12 is positioned and fixed by the protrusion 40 of the upper cover 1 and the protrusion 41 of the lower cover 2, the locking protrusion 42 of the lower cover 2 engages with the locking hole 43 of the upper cover 1,
The upper and lower covers 1 and 2 are combined. In this case, in order to prevent the block base 12 from wobbling, the elastic body 4
4 (Figures 4 to 6) is used. Next, with the vibration damper 45 positioned at the bottom of the motor 13, the coupling base 46 is attached. In this case, the protrusion 47 presses the vibration damper 45 against the bottom of the motor 13, and the locking protrusion 48 locks into the recess 50 of the four motor holding legs 49 of the block base 12 to prevent it from coming off. The mating protrusion 51 engages with the engaging pieces 52 and 53 of the upper and lower covers 1 and 2 to securely connect the upper and lower covers 1 and 2. The bonding base 46 has battery holding pieces 54 on both sides. Next, by elastically deforming the grip portion 55 of the rear end cover 3 inward and locking the elastic claws 56 with the locking pieces 57 and 58 of the upper and lower covers 1 and 2, the rear end cover 3 is moved between the upper and lower covers 1 and 2. Attach to. At this time, the elastic claws 59 of the bonding base 46
presses against the back surface of the elastic claw 56 of the rear end cover 3 to ensure attachment of the rear end cover 3. Further, a battery pressing spring 60 is fixed to the rear end cover 3. In addition,
The protrusions 61 and 62 of the upper and lower covers 1 and 2 are connected to the motor 13
It is used to supplementally hold the

In FIGS. 11A and 11B, the substrate 1
8, an intake groove 63 and an exhaust groove 64 are formed on the lower surface thereof. The intake valve 22 and exhaust valve 23 of the diaphragm 19 shown in FIG. 12A are positioned in the intake groove 63 and exhaust groove 64, and assembled into the rotating mechanism block shown in FIG. 13. The state is shown in FIG.
In FIG. 14, the substrate 18 is
The diaphragm 19 is then attached to the block base 12, and the state in which it is joined by split pins 65 is shown in FIG.

In FIG. 16, the recess 66 and rear end side surface 67 of the bending plate 27 are
9, and as shown in FIG. 17, the protrusion 70 at the top of the guide pin 68 is deformed to prevent the bending plate 27 from falling off.

In FIG. 8, two batteries 71 are housed in a space having an oval cross-section formed by the upper and lower covers 1 and 2 so as to sandwich the motor 13 therebetween.

In FIG. 9, the anode 72 of the battery 71 is in contact with the battery terminal 73 attached to the block base 12,
A lead wire 74 soldered to the battery terminal 73 leads to a terminal 75 of the motor 13 (FIG. 4).
The two batteries 71 are connected in series, and the cathode of the other battery 71 is connected to the other terminal of the motor 13 via the contact mechanism of the power switch 4.

Next, the operation will be explained with reference to FIGS. 1 to 7. When the rotation/suction switching switch 5 is moved to the "rotation" side as shown in FIG. 1, the leaf spring 29 follows this and moves the bending plate 2 as shown in FIG.
7 on the left side, so that the valve plate 28 separates from the aperture 26 in the diaphragm 19. In this state, when the rotating brush 8 and the fixed brush 9 are attached as shown in FIG. 6 and the power switch 4 is turned on, the motor 13 rotates, and the gear 15 and eccentric shaft 16 rotate. The rotation of the gear 15 is transmitted to the crown gear 30, and the crown gear 30 rotates about the cylindrical fixed shaft 17 as a central axis, thereby rotating the rotating brush 8. At this time, the crown gear 30 is elastically supported by the elastic claws 32 of the bush 31 and rotates smoothly.
The rotating brush 8 is used to wash the face, but since the fixed brush 9 is fixed to the lower cover 2 and does not rotate, the face washing liquid etc. do not scatter. On the other hand, the diaphragm 19 is driven by the rotation of the eccentric shaft 16 via the flanged bearing 25 and the connecting rod 24, but since the aperture 26 is in an open state, the pump chamber 20 is in an open state and the diaphragm 19 does not work as a pump. do not have.

Next, turn off the power switch 4, remove the rotating brush 8 and fixed brush 9, attach the suction cup 6 to the pusher 31 as shown in FIG. 5, and set the rotation/suction switch 5 to the "suction" side. move it. As a result, the leaf spring 29 presses the right side of the bending plate 27, the bending plate 27 performs a see-saw action, and the valve plate 28 closes the opening 26 of the diaphragm 19. When the power switch 4 is turned on in this state, the motor 13 rotates, and the gear 15 and eccentric shaft 16 rotate. Due to the rotation of the eccentric shaft 16, the diaphragm 1 is
9 is driven, and the diaphragm 19 performs a pumping action. The air flow in this case is shown by arrows. When the skin comes into contact with the opening of the suction cover 7, the pressure inside the suction cover 7 is reduced by the pumping action of the diaphragm 19, removing dirt from the skin and performing suction massage. In this case, the action of the ring-shaped packing 33 promotes the reduction in pressure within the suction cup 6. In addition, the air to be sucked goes through the suction cover 7 → suction cup 6 → cylindrical interior 21 → intake valve 22 →
Intake groove 63 → pump chamber 20 → exhaust groove (Fig. 7) →
It passes through the path of the exhaust valve 23 (FIG. 7).

Note that battery replacement is performed by removing the rear end cover 3. The rear end cover 3 can be removed by elastically deforming the grip portion 55 inward and disengaging the elastic claw 56 from the locking piece 58 .

As described above, in the pump device of the present invention, a connecting rod is formed in a bulging manner on the outside surface of the pump chamber of a diaphragm made of a soft material, and a cylindrical bearing having a retaining collar at both ends is formed at the tip of the connecting rod. The structure is simple, the number of parts can be reduced, and the connecting rod can be connected to the diaphragm. Since it is made of the same elastic material such as rubber, it is possible to smoothly transmit reciprocating motion to the diaphragm without applying unreasonable force, and the rotational motion of the eccentric shaft can be smoothly transmitted to the connecting rod by the bearing.
Moreover, the bearing can be mounted extremely easily and reliably, and therefore has the effect of achieving a long service life.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view of a facial beauty device to which the present invention is applied, Fig. 2 is a perspective view of a suction cup used when attached to the device of Fig. 1, Fig. 3 is a perspective view of a facial cleansing brush, and Fig. 4 is a partially cutaway plan view of Figure 1, and Figure 5 is a partially cutaway plan view of Figure 1.
The figure is a sectional view of Fig. 4 when using a suction cup, Fig. 6 is a sectional view of Fig. 4 when a facial cleansing brush is used, and Fig. 7 is a sectional view of Fig. 4.
8 is a sectional view of FIG. 4, FIG. 9 is a sectional view of FIG. 4, FIG. 10 is an exploded perspective view of the device of FIG. 1, FIG. 11A is a perspective view of the board, and FIG. 11B is 11A is a cross-sectional view taken along line XI--XI, FIG. 12A is a perspective view of the diaphragm, and FIG. 12B is a cross-sectional view taken along line XI-XI in FIG. 12A.
XII sectional view, FIG. 13 is a perspective view of the rotating mechanism block, FIG. 14 is an explanatory diagram of the assembly of the pump block, FIG. 15 is an enlarged sectional view of the main parts of the pump block,
Figure 16 is an assembly explanatory diagram of the pump chamber opening/closing valve, Figure 17
The figure is a perspective view of the assembled state, FIG. 18 is a perspective view of the brush, and FIG. 19 is a partially cutaway side view of the facial cleansing brush. 13...Motor, 14...Output shaft, 16...Eccentric shaft,
18... Board, 19... Diaphragm, 20... Pump chamber, 22... Intake valve, 23... Exhaust valve, 24... Connection rod, 25... Flange bearing.

Claims (1)

[Claims] 1. A connecting rod is formed to bulge on the outside surface of the pump chamber of a diaphragm made of a soft material, and a cylindrical bearing having a retaining collar at both ends is fitted into the hole by pushing out a hole formed at the tip of the connecting rod. A pump device is configured such that an eccentric shaft is fitted into the bearing, and the eccentric shaft is driven by a motor.