JP3528190B2 - Reciprocating electric razor - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery-operated reciprocating electric shaver. 2. Description of the Related Art In a conventional battery type reciprocating electric shaver, as shown in FIG. 13, battery contacts for contacting positive and negative electrodes at the upper and lower ends of a battery 30 are provided vertically.
There is a possibility that the load of the contact spring 7 is applied in the direction in which the battery cover 6 for opening and closing the battery 30 is opened, and the battery cover 6 is deformed in the opening direction and the contact load of the contact spring 7 is reduced.
Further, in fixing the battery cover 6, a fixing method which does not lose the force of the contact spring 7 plus the impact by the battery 30 is required. SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to improve the reliability of fixing a battery cover. Another object of the present invention is to provide a reciprocating electric shaver which can be made and has good contact stability of the contact spring. [0004] A reciprocating electric shaver according to the present invention is provided with a battery accommodating chamber 2 inside a housing 1, a reciprocating drive 3 on the upper portion of the housing 1, and a reciprocating drive 3 attached to the reciprocating drive 3. In a reciprocating electric shaver provided with an inner blade 4 provided with an outer blade 20 on the top of which the inner blade 4 slides on the inner surface and a battery cover 6 for opening and closing the lower opening 5 of the housing 1, Positive and negative contact springs 7 are juxtaposed on the inner surface of the chamber 2 along the reciprocating direction of the inner cutter 4, and these positive and negative contact springs 7 can be compressed vertically with respect to the inner surface of the housing 1. The battery in which the positive and negative poles 8 are juxtaposed is stored in the battery storage chamber 2 and the positive and negative contact springs 7 are brought into contact with the positive and negative poles 8 of the battery 30. By adopting such a configuration, the above-mentioned problems of the conventional example can be solved. Thus, the object of the present invention has been achieved. [0005] [action] Thus, according to the present invention constructed as above, positive along the reciprocating direction of the inner blade 4 on the inner surface of the battery housing chamber 2, arranged side by side a negative contact spring 7, The positive and negative contact springs 7
Can be compressed in the direction perpendicular to the inner surface of the housing 1, and a battery having positive and negative poles 8 arranged side by side is housed in the battery housing 2, and the positive and negative contact springs 7 With the configuration in which the battery is brought into contact with the negative pole 8, the spring load of the contact spring 7 is not applied to the battery cover 6 in the lower opening 5 of the housing 1, and the contact spring 7 is opened in the opening direction of the battery cover 6. Is not deformed. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the accompanying drawings. As shown in FIGS. 1 and 2, a base 25 is provided inside the housing 1.
The battery housing 2 is formed by providing the concave portion 26 as shown in FIG. 0, and the motor 9 is provided inside the housing 1 next to the battery housing 2. FIGS. 5 to 9 show exploded perspective views of each part of the reciprocating electric shaver of the present invention. In the drawings, reference numeral 40 denotes a motor cathode metal fitting, and 41 denotes a motor anode metal fitting. Reference numeral 42 denotes a switch contact spring. An outer panel 4 as shown in FIG.
7 is attached. A reciprocating driver 3 is disposed on the upper portion of the housing 1, and fixed portions on both sides of the reciprocating driver 3 are fixed to both sides of an upper end portion of a base 25, and an inner blade 4 is provided on an upper end portion of the reciprocating driver 3. Installed. The eccentric balancer 10 provided on the output shaft of the motor 9, the motor 9 via a drive arm 11 for connecting the eccentric balancer 10 to the reciprocating driver 3, and the like.
Is converted into a reciprocating drive motion of the reciprocating driver 3. In this case, the reciprocating driver 3 performs reciprocating driving by deforming the inverted U-shaped portion. An outer cutter frame 1 having an outer cutter 20 mounted on the top of the housing 1
1 is detachably attached. A hinge 12 is pivotally supported at one end of the outer cutter frame 11 by a shaft 27 , and the hinge 12 urges a spring force of a spring member 13 in a direction in which the hinge 12 projects outward of the outer cutter frame 11. It is. Then, the hinge 12 is inserted into a locking groove 14 provided at one end of the top of the housing 1, and the hinge 12 is elastically clamped by a frame fixing spring 15 provided in the locking groove 14 and provided on the hinge 12. The projection of the frame fixing spring 15 is elastically locked in the locking hole. In addition, hinge 12
By rotating the outer cutter frame 11 at the portion and locking the locking portion 16 at the other end of the outer cutter frame 11 to the locking hook 17 provided at the other end of the top of the housing 1, the outer cutter frame 11 is rotated.
Is attached to the top of the housing 1. And
When the operation button 18 provided on the housing 1 is pressed, the spring 19
The outer cutter frame 11 is opened by pressing the locking hook 17 to release the locking of the locking hook 17 and the locking portion 16 against the armature, and the outer cutter frame 11 is removed by removing the hinge 12. Can be done. In the figure, 21 is a driver waterproof rubber, 22 is a rubber pressing plate, and 23 is a vibration isolating plate. The rubber pressing plate 22 is pressed from above with the driver waterproof rubber 21 applied to the opening of the hole at the top of the housing 1. Pressing, and furthermore, a vibration isolating plate 23 is applied thereon and fixed by screws. In the figure, reference numeral 24 denotes a switch handle, and the motor circuit is turned on and off by operating the switch handle 24. [0007] Positive and negative contact springs 7 are juxtaposed along the reciprocating direction of the inner blade 4 as shown in FIG. 1 and FIG. . here,
The juxtaposition direction of the positive and negative contact springs 7 is the same as the reciprocating drive direction of the reciprocating driver 3. The positive and negative contact springs 7 are compressible in a direction perpendicular to the inner surface of the housing 1. As the battery 30, a lithium battery 2CR5 type is used, and positive and negative poles 8 are provided on side surfaces. Also,
A protrusion 39 that conforms to the shape of the battery 30 is provided on a portion of the base 25 that forms the inner side surface of the battery storage chamber 2 so that erroneous insertion of the front and rear surfaces when the battery is inserted is eliminated. [0008] Under face of the housing 1 is open, the opening on the bottom 5 of the housing 1 is intended to be closed by the openable battery cover 6. As shown in FIG. 8, the battery cover 6 includes a battery cover 31, an O-ring 32, an O-ring cover 33, a cam 34, and a dial 35.
And a cam 34 disposed on the upper surface side of the dial 35 and the battery cover 31 arranged in the recess 48 of the lower surface of the battery cover 31 through the O-ring 36 secured by tapping screws 37, cam by turning the dial 35 34 can be rotated. Then, by turning the dial 35, the cam 34 is rotated as shown in FIG. 11 to lock or unlock the locking recess 38 provided on the inner wall of the housing 1. I have. Then, the battery cover 6 is removed and the housing 1 is removed.
The battery 30 having the positive and negative poles 8 arranged side by side from the lower opening 5 is inserted into the battery compartment 2, and the positive and negative contact springs 7 provided on the inner side of the battery compartment 2 are connected to the battery. The positive and negative poles 8 are brought into contact. The outer blade 2 has an outer blade 2
The outer blade frame 11 is formed by two-color molding of a synthetic resin, so that a transparent portion 46 is partially formed on the outer blade frame 11. Is provided, and the blade which is a characteristic of the reciprocating electric shaver main body can be shown by showing the inside without impairing the flow of the color scheme (design) from the reciprocating electric shaver main body. According to the present invention, as described above, positive and negative contact springs are juxtaposed on the inner surface of the battery storage chamber along the reciprocating direction of the inner blade. The battery can be compressed in the direction perpendicular to the inner surface of the housing, and the battery having positive and negative poles arranged side by side can be stored in the battery chamber, and the positive and negative contact springs can be Since the contact is made with the poles, the load of the contact spring is not applied to the battery lid, and as a result, no force is applied by the contact spring in the opening direction of the battery lid, and the reliability of fixing the battery lid is lower than before. For example, even if the structure is exactly the same as that of the conventional fixing of the battery lid, the reliability of the fixing is far improved compared to the conventional case. In addition, the contact load of the contact spring can be set irrespective of the structure of the battery lid, so that the contact load does not vary due to the variation in the fixing position of the battery lid, and the reliability of the contact is further improved. It is also possible to set the load of the contact spring high in order to make the contact spring high. In addition, the battery is subjected to a load by the contact spring in a direction perpendicular to the vibration direction of the inner blade and the reciprocating driver and perpendicular to the vertical direction of the housing. The rattling and vibration can be suppressed, and the spring load of the contact spring does not change as in the related art, so that the contact stability is improved as compared with the related art.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front sectional view of the present invention. FIG. 2 is a side sectional view of the same. FIG. 3 is a partially broken front view of the same. FIG. 4 is a bottom view of the above. FIG. 5 is an exploded perspective view of a housing, an outer panel and the like of the same. FIG. 6 is an exploded perspective view of a base, a battery, a motor, a reciprocating drive, a contact spring, and the like in the above. FIG. 7 is an exploded perspective view of an outer blade frame, an outer blade, an inner blade, a cap and the like of the above. FIG. 8 is an exploded perspective view of a battery lid part according to the third embodiment. FIG. 9 is an exploded perspective view of the battery, the contact spring, and the reciprocating driver according to the first embodiment. FIG. 10 is a bottom view of the housing. FIG. 11 is a partially cutaway perspective view showing a locking relationship between the cam and the locking recess according to the first embodiment. FIG. 12 is a partially cutaway perspective view showing a state where the above-mentioned cap is covered. FIG. 13 is a sectional view of a conventional example. [Description of Signs] 1 Housing 2 Battery storage room 3 Reciprocating drive 4 Inner blade 5 Lower surface opening 6 Battery lid 7 Contact spring 8 Poles 30 Battery

Claims (1)

(57) [Claims 1] A battery storage room is provided inside the housing,
A reciprocating drive provided with a reciprocating driver and an inner blade attached to the reciprocating driver on the upper part of the housing, an outer blade on which the inner blade slides on the inner surface on the top of the housing, and a battery lid for opening and closing the lower opening of the housing. In the electric shaver, positive and negative contact springs are arranged side by side along the reciprocating direction of the inner blade on the inner surface of the battery storage chamber, and these positive and negative contact springs can be compressed in a direction perpendicular to the inner surface of the housing. A reciprocating electric shaver comprising: a battery having positive and negative poles arranged side by side in a battery compartment; and positive and negative contact springs contacting the positive and negative poles of the battery. .