JP2002177666A - Electric razor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric razor that is simple in structure and in which a battery is fixed so that it may not move radially during use, and the battery can be extracted easily by releasing fixation when taking out the battery. SOLUTION: In an electric razor whose bottom lid 1 can be opened and closed to remove a battery 3, a backlash prevention means 4 is provided to prevent radial backlash of the battery 3 with the bottom lid 1 mounted and with the bottom lid 1 removed, backlash prevention of the backlash prevention means 4 is released.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for attaching and detaching a battery of an electric shaver.

[0002]

2. Description of the Related Art Conventionally, there has been known an electric razor in which a bottom cover is attached to a bottom opening of a main body case so as to be openable and closable, and a battery can be attached and detached in a longitudinal direction by opening and closing the bottom cover. In such an electric shaver, in order to form the electric path of the battery, the connection fittings connected to the poles at both ends of the battery are usually pressed by a spring or the like in order to ensure the reliability of the contact. The spring length and the spring load are set so as to cover the dimensional variation in the longitudinal direction of the battery. There is also a dimensional variation of the battery in the radial direction of the battery, and the battery housing portion is set to have a sufficient size in the radial direction.

However, in the case of a vibrating device such as an electric razor, the vibration causes rattling of the battery and produces an unpleasant vibration sound, or the vibration causes a problem such as abrasion at a contact portion between the battery and the connection fitting. There is.

[0004] In order to avoid such a problem, there is a case where the pressing load of a spring or the like is increased to avoid the problem. In some cases, a spring or the like that comes into pressure contact with the battery in the radial direction is provided in the battery housing and fixed. However, in this case, when removing the battery from the battery housing, there is a problem that the battery cannot be taken out unless the spring to be pressed is opened.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has a simple structure in which a battery is fixed so as not to move in a radial direction at the time of use, and is released when the battery is taken out. It is an object of the present invention to provide an electric razor which can be easily taken out.

[0006]

In order to solve the above problems, an electric shaver according to the present invention comprises an electric shaver 2 in which a bottom cover 1 is opened and closed and a battery 3 is detachable. A rattling means 4 for stopping the battery 3 in the radial direction is provided, and when the bottom cover 1 is detached, the rattling means 4 is released. . By adopting such a configuration, the bottom cover 1 is put on, so that the battery 3 is rattled in the radial direction by the rattling means 4 so that the battery 3 does not rattle during use. When the battery 3 is to be removed, the battery 3 can be easily taken out by releasing the bottom cover 1 to release the rattling of the battery 3 in the radial direction by the rattling means 4. It is.

Further, a fixed cam 6 for attaching and detaching the bottom cover 1 to and from the main body case 5 is provided. Preferably, an elastic piece 7 is provided. With such a configuration, when the bottom cover 1 is attached to the main body case 5 by the fixed cam 6, the battery 3 is provided by the elastic piece 7 provided on the fixed cam 6 at the same time.
Can be pressed radially to stop.

Further, a fixed cam 6 for attaching and detaching the bottom cover 1 to and from the main body case 5 is provided, and the battery 3 is pressed in the radial direction with the bottom cover 1 attached to the fixed cam 6 to stop it. It is preferable to provide an elastic portion 8 such as rubber. With this configuration, when the bottom cover 1 is attached to the main body case 5 by the fixed cam 6, the battery 3 is pressed in the radial direction by the elastic portion 8 such as rubber provided on the fixed cam 6, and the battery 3 is stopped. You can do it.

A fixed cam 6 for attaching and detaching the bottom cover 1 to and from the main body case 5 is provided.
It is preferable that an elastic body 10 is provided on a base 9 for receiving the battery, and the battery 3 is pressed in the radial direction via the elastic body 10 by the fixed cam 6 with the bottom cover 1 attached. With this configuration, the elastic body 10 provided on the base 9 by the fixed cam 6 at the same time when the bottom cover 1 is attached to the main body case 5 by the fixed cam 6.
, The battery 3 can be pressed in the radial direction and stopped.

Further, it is preferable that the elastic body 10 is constituted by the electric path forming bracket 17. With such a configuration, the electric path forming bracket 17 can also be used as a member for pressing the battery 3 in the radial direction and stopping the battery 3.

Further, a fixed cam 6 for attaching and detaching the bottom cover 1 to and from the main body case 5 is provided, and the fixed cam 6 detects a normal storage posture of the battery 3 in the main body case 5.
1 is preferably provided. With such a configuration, when the bottom cover 1 is attached to the main body case 5 by the fixed cam 6, at the same time, whether or not the battery 3 is stored in the normal storage posture in the main body case 5 is known by the normal posture detection unit 11. Can be.

A fixed cam 6 for attaching and detaching the bottom cover 1 to and from the main body case 5 is provided, and a contact spring 13 for moving the contact spring 13 by pressing the contact spring 13 in contact with the pole portion of the battery 3 on the fixed cam 6. It is preferable to provide the part 12. With such a configuration, when the bottom cover 1 is attached to the main body case 5 by the fixed cam 6, the contact spring 13 of the battery 3 is moved by the contact spring pressing portion 12 provided on the fixed cam 6, and the pole portion of the battery 3 is moved. And the surface of the contact spring 13 is rubbed, so that a favorable contact state between the pole portion of the battery 3 and the contact spring 13 can be secured.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments shown in the accompanying drawings.

The electric shaver 2 includes a reciprocating type, a rotary type and the like as a driving method of the blade. In the present invention, the driving method is not particularly limited, but the following description will be made on the reciprocating type. FIG.
2 shows an exploded perspective view of the electric shaver 2 of the present invention, and shows a reciprocating type as a blade driving system.

A switch handle 14 is disposed in the main body case 5, and a motor 15 fixed to the base 9 provided in the main body case 5 is driven by turning on and off the switch handle 14. Motor 15 is battery 3
, A contact switch 16, a contact spring 13 attached to the bottom cover 1 that constitutes a battery cover, and an electric path forming bracket 17 (17).
a, 17b, 17c) to form an energizing circuit.
The contact switch 6 is turned on / off in conjunction with the on / off operation of the switch handle 14 to operate the motor 15 or stop the operation.

The driving element 18 is for converting the rotation of the motor 15 into reciprocating motion. When the driving element 18 reciprocates, the inner blade 19 engaged with the driving element 18 reciprocates, and the outer blade 2
0 and the reciprocating inner blade 19 are used to shave.

An engaging groove 2 is provided at an end of the base 9 which is mounted inside the main body case 5 and is attached to the main body case 5 by screws 24.
3 are provided.

With the base 9 on which the motor 3 is mounted inside the main body case 5 and mounted therein, two battery storage portions 25 are formed in the main body case 5, and the battery storage portion 25 is opened from the bottom opening of the main body case 5. The battery 3 can be stored in the battery 25.

A contact spring 13 is provided on the inner side of the bottom cover 1. Further, a concave portion 26 is provided on an outer surface portion of the bottom cover 1, and the concave portion 26 is opened outside (below) and on both sides of the bottom cover 1. A hole 27 is provided in the center of the recess 26. A dial 21 is rotatably fitted in the concave portion 26, and a part of the outer peripheral portion of the dial 21 is formed in the concave portion 2 of the bottom cover 1.
6 project laterally from the side opening 30. Dial 2
Reference numeral 1 denotes an arc-shaped flange 21c protruding from a part of the outer periphery of a disc-shaped dial body 21a, and a shaft 21b protruding from the center of the dial body 21a.
1b is inserted through the hole 27 of the bottom cover 1. The fixed cam 6 is formed by projecting a shaft cylinder 6b from the center of a narrow plate-like portion 6a. The fixed cam 6 and the dial 21 are screwed into the screw 28 while the shaft cylinder 6b is fitted on the shaft 21b inserted through the hole 27.
The dial 21 is fixed to the bottom cover 1 in a state where the dial 21 and the fixed cam 6 are connected to each other. The fixed cam 6 can be rotated integrally. Here, a shaft for rotating the rotary block in which the dial 21 and the fixed cam 6 are coupled by the shaft portion 21b and the shaft cylinder portion 6b fitted to the shaft portion 21b so as to be rotatable with respect to the bottom cover 1. Is composed.

The rotation of the dial 21 causes the fixed cam 6 to rotate in conjunction therewith, and the rotation of the fixed cam 6 causes the fixed cam 6 to be provided on the base 9 provided inside the main body case 5. When the bottom cover 1 is engaged with the engagement groove 23 and is fixed to the main body case 5, or the fixed cam 6 is disengaged from the engagement groove 23 and the bottom lid 1 is not fixed to the main body case 5. It can be made to be in a state of being removed.

The bottom cover 1 is disposed in the bottom opening of the main body case 5, and the fixed cam 6 is engaged with the engaging groove 23 on the main body case 5 side to fix the bottom cover 1 to the main body case 5. Part 2
The battery 3 inserted in the battery 5 is sandwiched in the longitudinal direction of the battery 3 by the contact spring 13 and the electric path forming brackets 17a and 17b. The electric path forming brackets 17a and 17b are provided with spring-like contact portions, and press the poles of the battery 3 to secure the contact pressure and fix the battery 3 in the longitudinal direction.

When the battery 3 is removed, by rotating the dial 21 in the opening direction, the fixed cam 6 is disengaged from the engagement groove 23, so that the fixing of the bottom cover 1 to the main body case 5 is released.
The bottom cover 1 can be separated from the main body case 5, and in this state, the battery housing 2 provided in the main body case 5 is provided.
5 can be taken out from the bottom opening of the main body case 5.

Since a part of the outer periphery of the dial 21 protrudes laterally from the side opening 30 of the concave portion 26 of the bottom cover 1, a finger is applied to the part protruding from the side opening 30 of the outer periphery of the dial 21. When the battery 3 is removed as described above, an arc-shaped flange portion 21c of the outer peripheral portion of the dial 21 projects from the side opening 30. That is, when the bottom cover 1 is fixed to the main body case 5 by the fixing cam 6, as shown in FIG.
A portion of the outer peripheral portion of the dial 21 where the flange portion 21c is not protruded slightly protrudes from the side opening 30 so that the dial 21 can be operated but the dial 21 is not obstructed. In a state where the bottom cover 1 is unlocked from the main body case 5, as shown in FIG.
The flange portion 21c of the outer peripheral portion protrudes from the side opening 30 to protrude from the side opening 30 and the bottom cover 1 is easily detached from the main body case 5 by putting a finger on the flange portion 21c. It is made easy.

When the battery 3 is housed in the battery housing 25, the battery housing 25 is set slightly larger in consideration of variations in the size of the battery 3 in the radial direction. That is, if the battery housing 25 has no allowance in the radial direction, the battery 3 may not be able to be taken out of the battery housing 25 due to variations in the radial direction of the battery 3.

Therefore, in the present invention, the diameter of the battery housing 25 is made slightly larger than the diameter of the battery 3 in order to absorb the dimensional variation in the radial direction of the battery 3 and facilitate the removal of the battery 3 as described above. In the electric shaver 2 in which the bottom cover 1 is opened and closed and the battery 3 is detachable, a rattling means 4 for stopping the battery 3 in the radial direction with the bottom cover 1 attached is provided.

In the embodiment shown in FIGS. 1 to 7,
The fixed cam 6 constitutes the play preventing means 4.

That is, in the present embodiment, the bottom cover 1 is disposed at the bottom opening of the main body case 5, and as shown in FIGS.
In a state where the fixed cam 6 is engaged with the engagement groove 23 of the main body case 5 and the bottom cover 1 is fixed to the main body case 5,
The side surface of the battery 3 is pressed against the inner wall surface of the battery accommodating portion 25 of the main body case 5 by the distal end portion of the narrow plate-shaped portion 6a of the fixed cam 6 to clamp the battery 3 in the radial direction. Attached state of lid 1 (fixed state of bottom lid 1 to main body case 5)
To stop the play of the battery 3 in the radial direction.

On the other hand, when removing the battery 3, the dial 21 is operated to rotate the fixed cam 6 to release the engagement with the engagement groove 23, so that the bottom cover 1 is moved to the main body case 5. The bottom cover 1 is detached from the main body case 5 as shown in FIGS.

Next, another embodiment of the present invention will be described with reference to FIGS. In the present embodiment, the elastic piece 7 is provided integrally with the fixed cam 6 at the distal end of the fixed cam 6 (for example, when the fixed cam 6 is integrally formed with synthetic resin, the elastic piece 7 is also integrally formed at the same time). The backstop means 4 is formed, and the fixed cam 6 is rotated by operating the dial 21 to engage with the engagement groove 23 to fix the bottom cover 1 to the main body case 5. The battery 3 is resiliently pressed against the side of the battery 3 by the elastic piece 7 at the distal end of the narrow plate-shaped portion 6a of the fixed cam 6 constituting the stopping means 4, so that the battery 3 is inserted into the battery housing 25 of the main body case 5. Battery 3
Are held in the radial direction, and thereby the bottom cover 1 is attached (the bottom cover 1
(Fixed state to the main body case 5) in the radial direction of the battery 3. In the present embodiment, since the radial variation of the battery 3 can be absorbed by the elastic pieces 7, the load on the inner wall of the main body case 5 is reduced, and the deformation of the main body case 5 is suppressed. Further, since the elastic piece 7 is formed integrally with the fixed cam 6, the number of members is reduced.

FIGS. 10 and 11 show another embodiment of the present invention. In the above embodiment, an example is shown in which an elastic piece 7 is formed integrally with the fixed cam 6 at the tip of the fixed cam 6. ,
In the present embodiment, a separate elastic portion 8 such as rubber is fixed to the distal end portion of the fixed cam 6 to constitute the play stopper 4. Also in this embodiment, in the state where the fixed cam 6 is rotated by operating the dial 21 to engage with the engagement groove 23 and the bottom cover 1 is fixed to the main body case 5, the rattling means 4 is fixed.
Of the fixed cam 6 constituting the battery 3
The battery 3 is pressed against the inner wall surface of the battery accommodating portion 25 of the main body case 5 by elastically pressing the side surface of the battery case 3 to sandwich the battery 3 in the radial direction. (Fixed state to the main body case 5) in the radial direction of the battery 3. In the present embodiment, since the variation in the radial direction of the battery 3 can be absorbed by the elastic portion 8, the load on the inner wall of the main body case 5 is reduced, and the deformation of the main body case 5 is suppressed.

Next, still another embodiment of the present invention will be described with reference to FIGS. In the present embodiment, the elastic body 10 is provided on the base 9 provided inside the main body case 5, and the bottom cover 1 is fixed to the main body case 5 by the fixed cam 6, and the battery is inserted through the elastic body 10 by the fixed cam 6. 3 is configured to be pressed in the radial direction. That is, in the present embodiment, the fixed cam 6 and the elastic body 10 provided on the base 9 constitute the rattling stopper 4. In the embodiment shown in FIGS. 12 and 13, an elastic protrusion 32 is provided integrally with the base 9, and the elastic protrusion 32 is provided as an elastic body 10 provided on the base 9. Are located between the battery housing 25 and the engagement groove 23. The elastic protruding portion 32 is attached to the main body case 5.
Together with the inner wall surface and the base 9 constitute a part of the periphery of the battery storage unit 25. In the present embodiment, the dial 21
When the fixed cam 6 is rotated by the above operation to engage with the engaging groove 23 and fix the bottom cover 1 to the main body case 5, the elastic protrusion 32 is pushed by the distal end of the fixed cam 6, and the elastic protrusion 32 is pressed. Part 3
2, the side surface of the battery 3 is elastically pressed, so that the battery 3 is pressed against the inner wall surface of the battery housing portion 25 of the main body case 5 and the battery 3 is sandwiched in the radial direction. In a state where the bottom cover 1 is fixed to the main body case 5, the battery 3 is stopped in the radial direction. In the present embodiment, the variation in the radial direction of the battery 3 can be absorbed by the elastic projections 32, so that the load on the inner wall of the main body case 5 is reduced, and the deformation of the main body case 5 is suppressed.

Next, still another embodiment of the present invention will be described with reference to FIGS. FIG. 12 and FIG.
In the embodiment shown in FIG. 3, an example is shown in which the elastic protruding portion 32 is formed integrally with the base 9 and the elastic body 10 is provided on the base 9. In the embodiment, an elastic body 10 provided on the base 9 is constituted by an elastic circuit-forming fitting 17 attached to the base 9. That is, in FIGS. 14 to 17, the elasticity of the electric circuit forming metal 17 provided on the base 9 is utilized, and the electric circuit forming metal 17 is used.
The elastic protruding piece 33 is provided on the elastic member 10, and the elastic protruding piece 33 is formed between the battery housing 25 and the engaging groove 23.

In this embodiment, as shown in FIGS. 14 and 15, when the fixed cam 6 is not engaged with the engagement groove 23, the elastic projecting piece 33 does not abut on the battery 3; As shown in FIG. 17, when the fixed cam 6 is rotated by the operation of the dial 21 to engage with the engaging groove 23 and fix the bottom cover 1 to the main body case 5, the tip of the fixed cam 6 The battery 3 is pressed against the inner wall surface of the battery housing portion 25 of the main body case 5 by pressing the elastic protruding piece 33 provided on the electric path forming bracket 17 and elastically pressing the side portion of the battery 3 by the elastic protruding piece 33. 3 is held in the radial direction, whereby the bottom cover 1 is attached (the bottom cover 1 is fixed to the main body case 5).
To stop the play of the battery 3 in the radial direction.
In the present embodiment, the variation in the radial direction of the battery 3 can be absorbed by the elastic projecting pieces 33, so that the load on the inner wall of the main body case 5 is reduced, and the deformation of the main body case 5 is suppressed. Further, in the present embodiment, the electric path forming bracket 17 is used.
Can be used also as a member for preventing the rattling of the battery 3 in the radial direction, so that the number of members is reduced and the configuration can be simplified.

Next, still another embodiment of the present invention will be described with reference to FIGS. In the present embodiment, the fixed cam 6 for attaching and detaching the bottom cover 1 to and from the main body case 5 is provided with a normal storage posture detecting unit 11 for detecting a normal storage posture of the battery 3 in the main body case 5. Below the plate-like portion 6a of the fixed cam 6, the shaft-like portion 6b
a protruding portion 34 for projecting the position in the same direction as the protruding direction on one side of the plate-like portion 6a. The position detecting projection 34 constitutes the normal storage posture detecting unit 11.

By the way, the polarity of the battery 3 is distinguished because the positive electrode portion 3a of the battery 3 is formed in a projecting shape slightly smaller than the body portion, and the negative electrode portion 3b side has the same shape as the body portion.
According to the present invention, when the fixing cam 6 is engaged with the engagement groove 23, the battery 5 is inserted in the regular insertion direction into the battery housing 25. In this embodiment, the fixed cam 6 is provided with a position detecting projection 34 so that the position detecting projection 34 is positioned in the direction in which the positive electrode 3a comes to the bottom opening side of the main body case 5. That is, when the battery 3 is stored in the battery storage portion 25 in a proper state when the plate-shaped portion 6 a of the fixed cam 6 is engaged with the engagement groove 23, the dial 21 is turned to the closed side to rotate the fixed cam 6. The plate-shaped portion 6a engages with the engaging groove 23 by interlocking the
By pressing the side surface of the battery 3 with the front end of the battery 3, the battery 3 is pressed against the inner wall surface of the battery housing 25 of the main body case 5, and the battery 3 is held in the radial direction. While the bottom cover 1 is fixed to the main body case 5), the battery 3 is prevented from rattling in the radial direction. In the state in which the backlash is stopped, the position detecting projection 34 is positioned below the end surface of the battery 3 from which the positive electrode portion 3a protrudes as shown in FIGS. In this case, it can be seen that the battery 3 is in the normal storage position.

On the other hand, if the battery 3 is not in the normal storage position, as shown in FIG. , The position detecting projection 34 abuts against the side surface of the battery 3 that is not in the normal storage position, and the fixed cam 6 cannot rotate. 23, the dial 21 cannot be turned to the closed position, and it can be seen that the battery 3 is not in the normal storage position (that is, the wrong insertion polarity direction of the battery 3 can be detected). is there. As described above, in the present embodiment, when the bottom cover 1 is attached to the main body case 5 by the fixed cam 6, the fixed cam 6 simultaneously stops the battery 3 in the radial direction, and the main body case 5 has the normal battery 3. The normal posture detection unit 11 determines whether or not the storage position is stored.
You can know by.

In the embodiment shown in FIGS. 18 to 20, when the bottom cover 1 is fixed to the main body case 5 by the fixed cam 6, the battery 3 is pressed by the distal end of the plate-like portion 6a of the fixed cam 6 so that the diameter is reduced. Although the displacement in the direction is prevented, the normal storage posture detecting unit 11 may be provided in the case where the displacement of the battery 3 in the radial direction is as described in each of the above embodiments.

Next, still another embodiment of the present invention will be described with reference to FIG.
24 will be described with reference to FIG. In the present embodiment, the contact spring 13 that contacts the pole of the battery 3 is attached to the fixed cam 6.
Contact spring pressing portion 12 for pushing contact spring 13 to move
Is provided. That is, as shown in FIG. 23, a substantially inverted U-shaped terminal portion 36 is provided on both sides of the contact spring 13, and terminal fitting projections 37 are provided on both sides of the inner surface of the bottom cover 1. The terminal portions 36 on both sides of the contact spring 13 disposed and attached to the inner surface of the lid 1 are fitted in the terminal fitting projections 37, respectively. Here, the terminal portion 36 fitted on the terminal fitting projection 37 is slidably fitted in a direction orthogonal to the projecting direction of the terminal fitting projection 37.
FIG. 23 shows a state where no external force is applied. Below the plate-like portion 6a of the fixed cam 6, a contact spring pressing portion 12 is provided in parallel with and protrudes from the shaft cylinder portion 6b in the same direction as the projecting direction on both sides of the plate-like portion 6a.

When the dial 21 is turned to the closing side and the fixed cam 6 is interlocked, the plate-like portion 6a is engaged with the engaging groove 23, and the side of the battery 3 at the tip of the plate-like portion 6a. By pressing, the battery 3 is pressed against the inner wall surface of the battery accommodating portion 25 of the main body case 5 so as to sandwich the battery 3 in the radial direction, thereby fixing the bottom cover 1 (fixing the bottom cover 1 to the main body case 5). 21), the plate-shaped portion 6a is engaged with the engagement groove 23 to stop the battery 3 in the radial direction. 22, the side piece of the substantially inverted U-shaped terminal portion 36 is pressed by the contact spring pressing portion 12, and the terminal portion 36 is moved from the state shown by the broken line in FIG.
1, and moved to the state shown by the solid line in FIG.
a is rubbed and moves, the surface of the pole portion of the battery 3 and the surface of the pole contact protrusion 36a are rubbed, and the surface is activated.
A better contact state can be ensured. On the other hand, when the dial 21 is turned to the open side and the engagement of the fixed cam 6 with the engagement groove 23 is released, the contact spring pressing portion 12 is rotated as shown in FIGS. The pressing of the terminal portion 36 against the side piece is released, and the terminal portion 36 moves and returns to the position shown in FIGS. 23 and 24 by the elastic restoring force of the terminal portion 36 having a substantially inverted U shape.

In the embodiment shown in FIGS. 21 to 24, when the bottom cover 1 is fixed to the main body case 5 by the fixed cam 6, the battery 3 is pressed by the distal end of the plate-like portion 6a of the fixed cam 6 so as to have a diameter. Although the displacement of the battery 3 is prevented, the contact spring 13 of the battery 3 is pressed against the fixed cam 6 in the same manner as described above even in the case where the prevention of the displacement of the battery 3 in the radial direction is as described in each of the above embodiments. A contact spring pressing portion 12 for moving the spring 13 may be provided.

[0041]

As described above, in the invention according to the first aspect of the present invention, in the electric shaver in which the bottom cover is opened and closed and the battery is detachable, the size of the battery in the radial direction is determined with the bottom cover attached. A rattling means for performing rattling is provided, and the rattling by the rattling means is released when the bottom cover is removed. The battery can be held in the direction to prevent it from rattling during use, and by removing the bottom cover, the battery's radial play is released by the rattling means and the battery can be opened. The battery can be easily removed, and the simple structure of attaching and detaching the bottom cover makes it possible to stop the battery in the radial direction during use and to easily remove the battery when removing the battery. is there.

According to a second aspect of the present invention, in addition to the effects of the first aspect, a fixed cam for attaching and detaching the bottom cover to and from the main body case is provided. When the bottom cover is attached to the main body case by the fixed cam, the elastic piece provided on the fixed cam simultaneously presses the battery in the radial direction. It is possible to use a member for attaching the bottom cover to the main body case and a member for preventing lateral displacement of the battery, thereby reducing the number of members and simplifying the configuration. .

According to the third aspect of the present invention, in addition to the effects of the first aspect, a fixed cam for attaching and detaching the bottom cover to and from the main body case is provided, and the fixed cam is provided on the fixed cam. An elastic part such as rubber is provided to press the battery in the radial direction in the state of being attached and to stop the battery. The part can be pressed radially to stop the battery, and the bottom lid can be attached to the main body case and the battery can be stopped with a simple structure, and the battery can be pressed radially by an elastic part such as rubber. Therefore, there is no fear of damaging the battery when stopping the play in the radial direction.

According to the fourth aspect of the present invention, in addition to the effects of the first aspect of the present invention, a fixed cam for attaching and detaching the bottom cover to and from the main body case is provided, and the battery is inserted in the main body case. An elastic body is provided on the receiving base, and the battery is pressed in the radial direction via the elastic body by the fixed cam with the bottom lid attached, so when the bottom lid is attached to the main body case by the fixed cam, the fixed cam is attached to the base at the same time. The battery can be pressed in the radial direction via the provided elastic body and can be rattled, and the battery can be rattled in the radial direction with a simple configuration.

According to the fifth aspect of the present invention, in addition to the effect of the fourth aspect of the present invention, since the elastic body is formed by the metal member for forming the electric circuit, the metal member for forming the electric circuit can be used for the battery. It can also be used as a member for pressing in the radial direction and stopping, reducing the number of members and simplifying the configuration.

According to a sixth aspect of the present invention, in addition to the effects of the first aspect, a fixed cam for attaching and detaching the bottom cover to and from the main body case is provided, and the fixed cam is provided on the fixed cam. A normal storage posture detector that detects the normal storage posture in the case is provided, so when the bottom cover is attached to the main case by the fixed cam, it is checked whether the battery is stored in the proper storage posture in the main case at the same time. It can be known by the detection unit, and the bottom cover can be attached to the main body case in a normal storage state of the battery.

According to the seventh aspect of the present invention, in addition to the effects of the first aspect, a fixed cam for attaching and detaching the bottom cover to and from the main body case is provided, and the fixed cam is provided on the fixed cam. A contact spring pressing portion for pressing the contact spring contacting the portion and moving the contact spring is provided. When the bottom cover is attached to the main body case by the fixed cam, the contact spring pressing portion provided on the fixed cam at the same time as the contact spring of the battery. By moving the battery, the surface of the contact portion of the battery and the contact spring is rubbed to ensure a good contact state between the contact portion of the battery and the contact portion of the battery. And the contact state between the contact portion and the contact spring can be secured.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view of an embodiment of the electric shaver of the present invention.

FIG. 2 is a sectional view taken along line XX of FIG.

FIG. 3 is an overall exploded perspective view of the electric shaver.

4A and 4B show a state in which the bottom cover is attached to a main body case by a fixing cam, FIG. 4A is a front view of an electric shaver, FIG. 4B is a side view, and FIG. .

5A and 5B show a state in which the attachment to the main body case by the fixed cam is released, FIG. 5A is a front view of the electric shaver, FIG. 5B is a side view, and FIG. 5C is a bottom view. .

FIG. 6 is a partially broken front view showing a state where the bottom cover is detached from a main body case.

FIG. 7 is a partially broken side view showing the same bottom cover detached from the main body case.

FIG. 8 is a sectional view of another embodiment of the electric shaver of the present invention.

FIG. 9 is a sectional view taken along line XX of FIG. 8;

FIG. 10 is a sectional view of still another embodiment of the electric shaver of the present invention.

FIG. 11 is a sectional view taken along line XX of FIG.

FIG. 12 is a sectional view of still another embodiment of the electric shaver of the present invention.

FIG. 13 is a sectional view taken along line XX of FIG.

FIG. 14 is a sectional view of still another embodiment of the electric shaver of the present invention.

FIG. 15 is a sectional view taken along line XX of FIG.

FIG. 16 is a sectional view of still another embodiment of the electric shaver of the present invention.

FIG. 17 is a sectional view taken along line XX of FIG.

FIG. 18 is a sectional view of still another embodiment of the electric shaver of the present invention.

FIG. 19 is a cross-sectional view taken along line XX of FIG. 18 of the above.

FIG. 20 is an explanatory diagram showing a state where the battery is not properly stored in the battery.

FIG. 21 is a sectional view of still another embodiment of the electric shaver of the present invention.

FIG. 22 is a sectional view taken along the line XX of FIG. 21 of the above.

FIG. 23 is a cross-sectional view showing a state where the bottom cover is not attached by the fixed cam and a contact spring is not pressed by the contact spring pressing portion.

FIG. 24 is a cross-sectional view taken along line XX of FIG. 23 of the above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bottom cover 2 Electric razor 3 Battery 4 Jig stop means 5 Main body case 6 Fixed cam 7 Elastic piece 8 Elastic part 9 Base 9 Elastic body 10 Elastic body 11 Normal storage posture detecting part 12 Contact spring pressing part 13 Contact spring

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yuichi Kato 1048 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Works Co., Ltd. F-term (reference) 3C056 JD07 JD11 JD19

Claims (7)

[Claims] An electric shaver in which a bottom cover is opened and closed and a battery is detachable is provided with rattling means for stopping the battery in a radial direction in a state where the bottom cover is attached, and removing the bottom cover. An electric razor, characterized in that the rattling means is released by a rattling means. 2. A fixed cam for attaching / detaching the bottom cover to / from the main body case, and an elastic piece for pressing the battery in the radial direction with the bottom cover attached to the fixed cam to stop the battery. The electric razor according to claim 1, wherein: 3. A fixed cam for attaching and detaching the bottom cover to and from the main body case, and an elastic portion such as rubber for pressing the battery in the radial direction with the bottom cover attached to the fixed cam to stop the battery. The electric shaver according to claim 1, characterized by comprising: 4. A fixed cam for attaching / detaching the bottom cover to / from the main body case, an elastic body provided on a base for receiving the battery in the main body case, and the battery being inserted through the elastic body by the fixed cam with the bottom cover attached. 2. The electric shaver according to claim 1, wherein the electric shaver is pressed in a radial direction. 5. The electric shaver according to claim 4, wherein the elastic body is formed by a metal fitting for forming an electric path. 6. A fixed cam for attaching / detaching the bottom cover to / from the main body case, and a normal storage posture detecting unit for detecting a normal storage posture of the battery in the main body case is provided on the fixed cam. Item 7. An electric razor according to item 1. 7. A fixed cam for attaching and detaching the bottom lid to and from the main body case, and a contact spring pressing portion for pressing a contact spring in contact with a pole portion of the battery and moving the contact spring is provided on the fixed cam. The electric shaver according to claim 1, characterized in that: