JP2020119881A - Switching arrangement and cigarette case including the same - Google Patents

Abstract

To provide a switching arrangement in which an operation part capable of button operation can be shaped asymmetrical to the axis, and can be assembled easily.SOLUTION: A switching arrangement 6 includes a button member 10 which can be pushed downward, a base member 20 in which a housing space S for housing the button member 10 is formed, and a coil spring 30 for energizing the button member 10 upward. The button member 10 includes a shank 14 extending downward, an operation part 12 having a configuration asymmetrical to the shank 14, and extended pieces 16A, 16B having engagement claws 18A, 18B at the lower end. The shank 14 is configured so that continuity of contacts can be switched by pushing a switch part 40. The base member 20 includes a cylindrical part 22 into which the shank 14 of the button member 10 is inserted, projections 51A, 51B projecting to the inside of the housing space S, and engaging with the engagement claws 18A, 18B of the button member 10, and rotation regulation walls 53A, 53B, 55A, 55B for regulating movement of the engagement claws 18A, 18B of the button member 10 in the hoop direction.SELECTED DRAWING: Figure 3

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch device and a cigarette case including the switch device, and more particularly to a cigarette case including a switch device including an operation unit capable of operating buttons.

2. Description of the Related Art Conventionally, a switch device including a button-operable operation unit is incorporated in various electric devices. In such a switch device, a button member including an operation portion is mounted in the housing in a state of being movable in the axial direction (for example, refer to Patent Document 1). The operation portion of the conventional switch device is often a simple cylindrical one, and there is no particular problem even if the button member rotates around the axis.

On the other hand, with the multifunctionalization of electric devices in recent years, the shapes of electric devices and the switch devices incorporated therein have been diversified. For example, the outer shape of the case of heating type cigarettes and electronic cigarettes, which are popular because of less harmful substances and smoke compared to conventional cigarettes, are often composed of curved surfaces and inclined surfaces. There is a demand for a switch device incorporated in the cigarette case which has an operating portion including a curved surface or an inclined surface, in other words, an operating portion which has an asymmetric outer shape with respect to the shaft.

However, when the operating portion has an asymmetric outer shape with respect to the axis, in the conventional switch device, the button member can rotate around the axis, and therefore the outer shape of the operating portion deviates from the outer shape of the case due to rotation around the axis. It may be continuous. Such a disagreement in outer shape is not preferable in appearance. Therefore, there is a need for a switch device that does not cause a problem even if the operating portion has an asymmetric outer shape with respect to the shaft.

JP, 2002-373551, A

The present invention has been made in view of the above-mentioned problems of the prior art, and provides a switch device that allows the button-operable operation portion to have an asymmetrical shape with respect to the axis and can be easily assembled. The first purpose is to provide.

A second object of the present invention is to provide a cigarette case in which buttons can be operated by an operation unit having an asymmetric outer shape with respect to an axis.

According to the first aspect of the present invention, there is provided a switch device in which the button-operable operation portion can be asymmetrical with respect to the axis and can be easily assembled. This switch device includes a button member that can be pushed downward, a base member in which a housing space that houses the button member is formed, and a biasing member that biases the button member upward with respect to the base member, And a switch unit arranged on the opposite side of the button member with the base member sandwiched therebetween and configured to switch the conduction state of the contacts. The button member includes a shaft portion extending downward, an operation portion connected to an upper end of the shaft portion and having an asymmetric outer shape with respect to the shaft portion, extending downward from the operation portion, and having an engaging claw at a lower end. And at least one extension piece having. The shaft portion is configured so that the contact state of the contact can be switched by pressing the switch portion. The base member has a cylindrical portion into which the shaft portion of the button member is inserted, at least one protrusion portion that protrudes inside the accommodation space and that engages with the engaging claw of the button member, and the button member. And at least one rotation restricting wall that restricts the movement of the engaging claw in the circumferential direction. In the present specification, “asymmetric with respect to the shaft portion” means not axisymmetric with respect to the central axis of the shaft portion.

With such a configuration, the engaging claw of the button member and the protruding portion of the base member can be engaged by elastically deforming the extension piece of the button member, and thus the button member can be vertically moved with respect to the base member. Can be fixed. Therefore, the button member can be easily attached to the base member, and the switch device can be easily assembled. Further, since the movement of the engaging claw of the extending piece of the button member in the circumferential direction is restricted by the rotation restricting wall of the base member, the button member can be also fixed in the circumferential direction with respect to the base member. Therefore, after the button member is attached to the base member, the button member does not rotate in the circumferential direction. Therefore, even when the operation unit having an asymmetric outer shape with respect to the shaft portion of the button member is used, the operation unit It is possible to prevent the upper surface of the operating portion and the peripheral surface thereof from becoming discontinuous due to the rotation of.

It is preferable that the at least one protrusion of the base member has a first guide surface that is inclined so as to approach the engaging claw of the button member as it goes downward. With this configuration, when the button member is attached to the base member, the engaging claw of the button member abuts and is guided by the first guide surface of the protruding portion of the base member. Can be elastically deformed smoothly. Therefore, the work of attaching the button member to the base member becomes easy.

The lower edge of the engaging claw of the button member is preferably rounded. In this way, by rounding the lower edge of the engaging claw of the button member that abuts the first guide surface of the protrusion, when the engaging claw of the button member is guided by the first guide surface of the protrusion. The resistance can be reduced.

It is preferable that the at least one rotation restricting wall of the base member has a second guide surface that is inclined so as to approach the engaging claw of the button member as it goes downward. With such a configuration, when the button member is attached to the base member, the engagement claw of the button member is brought into contact with and guided by the second guide surface of the rotation restricting wall of the base member, and the extension piece of the button member is positioned. I will do it. Therefore, the button member can be attached at an appropriate position on the base member.

The outer diameter of the cylindrical portion of the base member is preferably smaller as it goes upward. In this case, a coil spring mounted around the cylindrical portion of the base member can be used as the urging member. With such a configuration, when the coil spring, which is the biasing member, is mounted around the cylindrical portion, the coil spring can be inserted from the end portion of the cylindrical portion having a small outer diameter with a sufficient dimension. The mounting work becomes easy.

The at least one protrusion of the base member preferably includes a plurality of protrusions arranged at different angular intervals with the cylindrical portion as a center. With this configuration, when the button member is attached at a position displaced in the circumferential direction with respect to the cylindrical portion of the base member, the circumferential position of some of the engaging claws is the circumferential position of the protruding portion. Therefore, the button member cannot be attached to the base member. Therefore, the button member is prevented from being accidentally attached to the base member at a position displaced in the circumferential direction.

The button member includes a button body including the shaft portion, the at least one extension piece, a base portion to which an upper end of the shaft portion and an upper end of the at least one extension piece are connected, and a button body of the button body. A cover body that covers the upper side of the base portion may be included, and the cover body and the base portion of the button body may constitute the operation portion. With such a configuration, even when there is an external appearance request that the user wants to change only the color of the button operated portion, the cover member of the button member can be replaced without replacing the entire button member. You can change the color by simply replacing the one with a different color. Therefore, it is possible to easily increase the color variation of the portion where the user operates the buttons.

In order to improve the durability and strength of the portion where the user operates the buttons, the cover body is preferably made of metal.

The cover body may include a central portion located above the base portion of the button body, and an outer peripheral portion that extends downward from an outer peripheral edge of the central portion and surrounds the periphery of the base portion of the button body. .. In this way, by enclosing the periphery of the base portion of the button body with the outer peripheral portion of the cover body, the base portion of the button body can be protected by the cover body.

A protrusion may be formed on one of the base portion and the cover body of the button body, and a recess for receiving the protrusion may be formed on the other. By engaging such protrusions and recesses, positioning between the base portion of the button body and the cover body when attaching the cover body to the button body becomes easy.

According to the second aspect of the present invention, there is provided a cigarette case in which a button can be operated by an operation unit having an asymmetric outer shape with respect to an axis. This cigarette case includes a case body having an insertion opening into which a cigarette cartridge can be inserted in the axial direction, and the above-described switch device. The outer shape of the operation portion of the button member of the switch device may be formed so as to be smoothly continuous with the outer shape of the case body.

With such a configuration, even when the operating portion having an asymmetrical outer shape with respect to the shaft portion of the button member of the switch device is used, the outer shape of the operating portion and the outer shape of the case body are discontinuous due to the rotation of the operating portion. Since this can be prevented, the outer shape of the entire cigarette case can be maintained in a smooth and continuous shape, and a good appearance can be maintained.

According to the present invention, the engaging claw of the button member and the protruding portion of the base member can be engaged by elastically deforming the extension piece of the button member, whereby the button member can be moved vertically with respect to the base member. Can be fixed. Therefore, the button member can be easily attached to the base member, and the switch device can be easily assembled. Further, since the movement of the engaging claw of the extending piece of the button member in the circumferential direction is restricted by the rotation restricting wall of the base member, the button member can be also fixed in the circumferential direction with respect to the base member. Therefore, after the button member is attached to the base member, the button member does not rotate in the circumferential direction. Therefore, even when the operation unit having an asymmetric outer shape with respect to the shaft portion of the button member is used, the operation unit It is possible to prevent the upper surface of the operating portion and the peripheral surface thereof from becoming discontinuous by the rotation of.

FIG. 1 is a perspective view showing a cigarette case according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the cigarette case of FIG. FIG. 3 is an exploded perspective view showing a switch device in the cigarette case of FIG. FIG. 4A is a plan view of a button member in the switch device of FIG. FIG. 4B is a front view of the button member of FIG. 4A. FIG. 4C is a right side view of the button member of FIG. 4A. FIG. 5 is a plan view of a base member in the switch device of FIG. 6A is a cross-sectional view of the cigarette case of FIG. 1, and is a view corresponding to the cross section taken along the line AA of FIG. 5. 6B is a cross-sectional view of the cigarette case of FIG. 1, and is a view corresponding to the cross section taken along the line BB of FIG. 5. FIG. 7A is a plan view showing another example of the button member of FIG. 7B is a front view of the button member of FIG. 7A. FIG. 7C is a right side view of the button member of FIG. 7A. FIG. 7D is an exploded perspective view of the button member of FIG. 7A.

Hereinafter, an embodiment of a cigarette case according to the present invention will be described in detail with reference to FIGS. 1 to 7D. 1 to 7D, the same or corresponding components are designated by the same reference numerals, and duplicate description will be omitted. Further, in FIGS. 1 to 7D, the scale and dimensions of each component may be exaggerated or some components may be omitted.

FIG. 1 is a perspective view showing a cigarette case 1 according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view. This cigarette case 1 has a case body 2 which is composed of a substantially rectangular parallelepiped lower housing 3A for accommodating a heater, a power source, a charger and the like, and an upper housing 3B attached to the lower housing 3A. There is. The upper housing 3B of the case body 2 has a wedge shape having two inclined surfaces 7 and 8. In the present embodiment, for convenience, the +Z direction in FIG. 1 is referred to as “upper” or “upper”, and the −Z direction is referred to as “lower” or “lower”.

As shown in FIG. 2, the lower housing 3A and the upper housing 3B are provided with insertion ports 4A and 4B, respectively, into which rod-shaped cigarette cartridges (not shown) can be inserted along the -Z direction (axial direction). ing. The cigarette case 1 has a cover portion 5 attached to the inclined surface 7 of the upper housing 3B, and the cover portion 5 can slide on the inclined surface 7 of the upper housing 3B as shown by the arrow in FIG. Is configured. In this way, the cover part 5 can open and close the insertion port 4B of the upper housing 3B by sliding on the inclined surface 7 of the upper housing 3B. Although the cover 5 is provided outside the case main body 2 in the present embodiment, the cover 5 may be incorporated inside the case main body 2. Further, although the cover portion 5 of the present embodiment is configured to be opened and closed manually, it may be opened and closed using an actuator.

As shown in FIG. 2, inside the cigarette case 1, a switch device 6 for switching on/off of a power source housed in the lower housing 3A is incorporated. FIG. 3 is an exploded perspective view showing the switch device 6. As shown in FIG. 3, the switch device 6 includes a button member 10 that can be pushed downward, a base member 20 that holds the button member 10, and a coil spring 30 that biases the button member 10 upward with respect to the base member 20. It has a (biasing member) and a switch section 40 configured to switch the conduction state of the contacts. The switch unit 40 is fixed on the lower housing 3A as shown in FIG. 2, and is connected to a power source housed in the lower housing 3A via a wiring (not shown). The power supply is switched on/off by switching the conduction of the contacts in the switch section 40.

4A is a plan view of the button member 10, FIG. 4B is a front view, and FIG. 4C is a right side view. The button member 10 is made of, for example, a resin, and as shown in FIGS. 4A to 4C, an operating portion 12 having an elliptical shape in a plan view of FIG. 4A, and a shaft portion extending downward from the vicinity of the center of the operating portion 12. 14 and a pair of extension pieces 16A and 16B extending downward from both edges of the operation portion 12 in the Y direction. The operating portion 12 has a shape obtained by obliquely cutting an elliptic cylinder, and does not have an outer shape that is axisymmetric with respect to the central axis of the shaft portion 14. That is, the operation portion 12 has an asymmetric outer shape with respect to the shaft portion 14. The shaft portion 14 has an abutting portion 14A at its lower end that can abut the upper surface of the switch portion 40. Since the extending pieces 16A and 16B are cantilevered to both edges of the operation portion 12 in the Y direction, they can be elastically deformed in the Y direction.

As shown in FIG. 4B, an engaging claw 18A protruding in the −Y direction is formed at the lower end of the extending piece 16A of the button member 10. Similarly, an engaging claw 18B protruding in the +Y direction is formed at the lower end of the extending piece 16B of the button member 10. The lower edge 19A of the engagement claw 18A on the −Y direction side and the lower edge 19B of the engagement claw 18B on the +Y direction side are rounded.

As shown in FIG. 2, an elliptical opening 9 is formed in the inclined surface 8 of the upper housing 3B, and as shown in FIG. 1, the operating portion 12 of the button member 10 is provided in the opening 9 of the upper housing 3B. Is located. The upper surface of the operation portion 12 is inclined at the same slope as the inclined surface 8 of the upper housing 3B, and the upper surface of the operation portion 12 and the inclined surface 8 of the upper housing 3B are inside the opening 9 of the upper housing 3B. It is designed to be smoothly continuous.

FIG. 5 is a plan view of the base member 20. As shown in FIG. 3, the base member 20 includes a trapezoidal columnar frame body 21, and a housing space S that is recessed downward is formed at a substantially center of the frame body 21 in the X direction and the Y direction. There is. The button member 10 described above is housed in the housing space S.

6A and 6B are cross-sectional views of the cigarette case 1, FIG. 6A is a view corresponding to the cross section taken along the line AA of FIG. 5, and FIG. 6B is a view corresponding to the cross section taken along the line BB of FIG. As shown in FIGS. 6A and 6B, the base member 20 protrudes inward (in the +Y direction) of the cylindrical space 22 that extends upward in the center of the housing space S and the inner peripheral surface of the frame body 21 into the housing space S. The protrusion 51</b>A and the protrusion 51</b>B that protrudes (in the −Y direction) from the inner peripheral surface of the frame 21 to the inside of the accommodation space S are provided. As shown in FIG. 6A, a guide surface 52A (first guide surface) that is inclined (toward the +Y direction side) toward the engaging claw 18A of the button member 10 as it goes downward is provided on the upper portion of the protrusion 51A. A guide surface 52B (first guide surface) is formed on the upper portion of the protruding portion 51B and is inclined (toward the −Y direction side) so as to approach the engaging claw 18B of the button member 10 as it goes downward. Has been done.

As shown in FIGS. 3 and 5, the cylindrical portion 22 of the base member 20 is formed with a through hole 23 having an inner diameter larger than the outer diameter of the shaft portion 14 of the button member 10. The shaft portion 14 of the button member 10 is inserted into the through hole 23. As a result, the contact portion 14A at the lower end of the shaft portion 14 of the button member 10 is positioned below the frame body 21 of the base member 20. As shown in FIGS. 6A and 6B, the contact portion 14A of the shaft portion 14 of the button member 10 is located above the switch device 6 arranged below the base member 20, and the button member 10 is operated by the button operation. Is contacted with the upper surface of the switch device 6 when the switch is pushed downward.

As shown in FIG. 6A, the coil spring 30 is arranged so that the cylindrical portion 22 of the base member 20 is located inside thereof. The coil spring 30 is mounted around the cylindrical portion 22 in a compressed state between the operation portion 12 of the button member 10 and the base member 20, and the button member 10 is attached to the base member 20 by the coil spring 30. And is biased upward. In addition, in the present embodiment, as shown in FIG. 6A, the outer diameter of the cylindrical portion 22 becomes slightly smaller as it goes upward. With such a configuration, when the coil spring 30 is mounted around the cylindrical portion 22, the coil spring 30 can be inserted from the end of the cylindrical portion 22 having a small outer diameter with a sufficient dimension, so that the coil spring 30 The mounting work becomes easy.

As shown in FIGS. 5 and 6B, the base member 20 includes a rotation restriction wall 53A extending in the Z direction on the +X direction side of the protrusion 51A, and a rotation restriction wall extending in the Z direction on the −X direction side of the protrusion 51A. It has a wall 55A. As shown in FIG. 6B, the engagement claw 18A of the extension piece 16A of the button member 10 is located between the rotation restricting walls 53A and 55A, and the rotation restricting walls 53A, 55A. Thus, the movement of the engaging claw 18A in the circumferential direction is restricted. Similarly, the base member 20 includes a rotation restriction wall 53B extending in the Z direction on the +X direction side of the protrusion 51B and a rotation restriction wall 55B extending in the Z direction on the −X direction side of the protrusion 51B. The rotation restricting walls 53B and 55B restrict the movement of the engaging claw 18B in the circumferential direction.

As shown in FIG. 6B, on the upper portion of the rotation restricting wall 53A, a guide surface 54A (second guide surface) that inclines toward the engagement claw 18A of the button member 10 (in the −X direction side) as it goes downward. Similarly, a guide surface 54B (second side) that is inclined toward the (-X direction side) so as to approach the engaging claw 18B of the button member 10 as it goes downward is formed on the upper portion of the protruding portion 51B. A guide surface) is formed (see FIG. 5).

When attaching the button member 10 to the base member 20, the shaft portion 14 of the button member 10 is inserted into the through hole 23 of the cylindrical portion 22 of the base member 20, and the button member 10 is moved in the −Z direction. At this time, the engaging claws 18A and 18B of the button member 10 come into contact with the guide surfaces 52A and 52B of the protruding portions 51A and 51B of the base member 20, respectively, and when the button member 10 is further moved in the -Z direction, the guide surface 52A. , 52B, the extension pieces 16A, 16B of the button member 10 are elastically deformed in the Y direction. Eventually, when the engaging claws 18A and 18B of the button member 10 get over the projecting portions 51A and 51B of the base member 20, the deformation of the extension pieces 16A and 16B of the button member 10 is restored, and as shown in FIG. 6A, The engaging claws 18A and 18B of the button member 10 are engaged with the protruding portions 51A and 51B of the base member 20, and the button member 10 is fixed to the base member 20 in the vertical direction (Z direction). As described above, according to the switch device 6 of the present embodiment, the button member 10 can be easily attached to the base member 20.

At this time, the engaging claws 18A, 18B of the extending pieces 16A, 16B of the button member 10 are restricted in movement in the circumferential direction by the rotation restricting walls 53A, 55A, 53B, 55B of the base member 20. It is possible to fix 10 to the base member 20 also in the circumferential direction. As described above, after the button member 10 is attached to the base member 20, the button member 10 does not rotate around the shaft portion 14, and thus the operation portion having an asymmetric outer shape with respect to the shaft portion 14 of the button member 10. Even in the case of using 12, the discontinuity between the upper surface of the operation portion 12 and the inclined surface 8 of the upper housing 3B due to the rotation of the operation portion 12 can be prevented. Therefore, the outer shape of the entire cigarette case 1 can be maintained in a smooth and continuous shape, and a good appearance can be maintained.

Here, since the protruding portions 51A and 51B of the base member 20 have the guide surfaces 52A and 52B on their upper portions, when the button member 10 is attached to the base member 20, the engaging claws 18A of the button member 10 are provided. , 18B come into contact with the guide surfaces 52A, 52B of the protrusions 51A, 51B and are guided in the Y direction. Thereby, the extending pieces 16A and 16B of the button member 10 can be elastically deformed smoothly, and the work of attaching the button member 10 to the base member 20 becomes easy. Further, since the lower edges 19A and 19B of the engaging claws 18A and 18B that abut the guide surfaces 52A and 52B of the projecting portions 51A and 51B are rounded, the engaging claws 18A and 18B of the button member 10 are protruded from the projecting portion 51A. , 51B has a small resistance when abutting and being guided by the guide surfaces 52A, 52B.

Further, since the rotation restricting walls 53A and 53B of the base member 20 are formed with the guide surfaces 54A and 54B, respectively, when the button member 10 is attached to the base member 20, the engaging claws 18A and 18B of the button member 10 are The rotation restricting walls 53A and 53B are brought into contact with the guide surfaces 54A and 54B and guided in the X direction. Thereby, the extending pieces 16A and 16B of the button member 10 are positioned in the X direction, and the button member 10 can be attached to the base member 20 at an appropriate position.

In the present embodiment, the example in which the two extending pieces 16A and 16B are formed on the button member 10 and the two projecting portions 51A and 51B are also formed on the base member 20 corresponding thereto has been described. The number of extension pieces 10 and the number of protrusions of the base member 20 may be one. However, in order to stably attach the button member 10 to the base member 20, it is preferable that the extension piece of the button member 10 and the base member 20 have a plurality of protrusions.

Further, when the base member 20 is provided with a plurality of protrusions, it is preferable to dispose these protrusions at different angular intervals around the cylindrical portion 22. If a plurality of protrusions are arranged at different angular intervals with the cylindrical portion 22 as the center, when the button member 10 is attached at a position deviated from the cylindrical portion 22 of the base member 20 in the circumferential direction, a part of Since the position of the engaging claw in the circumferential direction does not coincide with the position of the protruding portion in the circumferential direction, these members interfere with each other and the button member 10 cannot be attached to the base member 20. Therefore, it is possible to prevent the button member 10 from being accidentally attached to the base member 20 at a position displaced in the circumferential direction. For example, in the example shown in FIG. 5, the protruding portions 51A and 51B of the base member 20 and the cylindrical portion 22 are not aligned in a straight line, and the cylindrical portion 22 is centered between the protruding portions 51A and 51B. It is not equiangularly spaced.

Further, instead of the button member 10 described above, a button member 110 as shown in FIGS. 7A to 7D may be used. The button member 110 includes a button body 160 made of resin, for example, and a cover body 170 made of metal, for example. The button body 160 includes the shaft portion 14 and the extending pieces 16A and 16B described above. The button body 160 also includes a base portion 162 to which the upper end of the shaft portion 14 and the upper ends of the extending pieces 16A and 16B are connected. That is, the shaft portion 14 extends downward from the vicinity of the center of the base portion 162 of the button body 160, and the extension pieces 16A and 16B extend downward from both edges of the base portion 162 of the button body 160 in the Y direction.

The cover body 170 has an elliptical shape in the plan view of FIG. 7A, and covers the upper portion of the base portion 162 of the button body 160. The cover body 170 includes a central portion 172 located above the base portion 162 of the button body 160, and an outer peripheral portion 174 extending downward from the outer peripheral edge of the central portion 172. The outer peripheral portion 174 of the cover body 170 surrounds the periphery of the base portion 162 of the button body 160. In this way, by surrounding the periphery of the base 162 of the button body 160 by the outer peripheral portion 174 of the cover body 170, the base 162 of the button body 160 can be protected by the cover body 170. The cover body 170 is fixed to the base portion 162 of the button body 160 with, for example, an adhesive material.

The cover body 170 and the base portion 162 of the button body 160 each have a shape obtained by obliquely cutting an elliptic cylinder, and have an asymmetric outer shape with respect to the central axis of the shaft portion 14. As described above, in the example shown in FIGS. 7A to 7D, the operation unit 12 described above is configured by the cover body 170 and the base portion 162 of the button body 160.

The central portion 172 of the cover body 170 is exposed to the outside through the opening 9 (see FIG. 1) of the upper housing 3B and serves as a portion where the user operates the button. For example, it is desired to change only the color of the portion where the button can be operated. Even if there is a demand for such appearance, the color can be changed by replacing the cover member 170 of the button member 110 with a different color without replacing the entire button member 110. Therefore, it is possible to easily increase the color variation of the portion where the user operates the buttons. If the cover body 170 is made of metal as described above, the durability and strength of the portion where the user operates the buttons can be improved.

Here, the base 162 of the button body 160 is formed with a protrusion 164 protruding outward, and the outer peripheral portion 174 of the cover body 170 is formed with a recess 176 having a shape corresponding to the protrusion 164. .. When the cover body 170 is attached to the button body 160, the protrusion 164 of the base portion 162 of the button body 160 is engaged with the recess 176 of the outer peripheral portion 174 of the cover body 170, so that the base portion 162 and the cover body 170 of the button body 160 are engaged. Positioning between and becomes easy. Note that, contrary to the illustrated example, a protrusion may be formed on the cover body 170 and a concave portion having a shape corresponding to the protrusion may be formed on the base portion 162 of the button body 160.

In the above-described embodiment, an example in which the two protrusions 51A of the base member 20 are provided with the two rotation restricting walls 53A and 55A and the protrusions 51B are provided with the two rotation restricting walls 53B and 55B will be described. However, it suffices to provide at least one rotation restriction wall on the base member 20, it is not always necessary to provide a plurality of rotation restriction walls, and it is not necessary to provide a rotation restriction wall corresponding to each protrusion. ..

The switch device 6 in the present embodiment is used to switch on/off the power supply in the cigarette case 1, but the switch device 6 may be used to realize other functions. For example, when the cover unit 5 is driven by an actuator, the switch device 6 may be used to operate the actuator that drives the cover unit 5.

It should be noted that the terms “lower”, “upper”, “upper”, “lower”, “upper”, “lower”, and other terms used for the positional relationship in the present specification are related to the illustrated embodiment. It is used in the above, and changes depending on the relative positional relationship of the devices.

Although the preferred embodiments of the present invention have been described so far, it is needless to say that the present invention is not limited to the above-described embodiments and may be implemented in various different forms within the scope of the technical idea thereof.

1 Cigarette Case 2 Case Body 3A Lower Housing 3B Upper Housing 4A, 4B Insertion Port 5 Cover Part 6 Switch Device 7, 8 Inclined Surface 9 Opening 10 Button Member 12 Operation Part 14 Shaft Part 14A Abutting Part 16A, 16B Extending Piece 18A, 18B Engaging claws 19A, 19B Lower edge 20 Base member 21 Frame body 22 Cylindrical portion 23 Through hole 30 Coil spring (biasing member)
40 Switch part 51A, 51B Projection part 52A, 52B (1st) guide surface 53A, 53B, 55A, 55B Rotation regulation wall 54A, 54B (2nd) guide surface 110 Button member 160 Button body 162 Base part 164 Protrusion 170 Cover Body 172 Central part 174 Outer peripheral part 176 Recess S Storage space

Claims (12)

A button member that can be pushed downward,
A base member having a housing space for housing the button member,
A biasing member that biases the button member upward with respect to the base member;
A switch unit arranged on the opposite side of the button member with the base member sandwiched therebetween and configured to switch the conduction state of the contacts;
The button member is
A shaft portion extending downward, the shaft portion capable of switching the conduction state of the contact by pressing the switch portion,
An operating portion connected to the upper end of the shaft portion and having an asymmetric outer shape with respect to the shaft portion,
At least one extending piece extending downward from the operation portion and having an engaging claw at a lower end thereof, and including at least one elastically deformable extending piece,
The base member is
A cylindrical portion through which the shaft portion of the button member is inserted;
At least one protrusion that protrudes inside the accommodation space and engages with the engagement claw of the button member;
At least one rotation restricting wall that restricts movement of the engaging claw of the button member in the circumferential direction,
Switch device. The switch device according to claim 1, wherein the at least one protruding portion of the base member has a first guide surface that is inclined so as to approach the engaging claw of the button member as it extends downward. The switch device according to claim 2, wherein a lower edge of the engaging claw of the button member is rounded. The at least one rotation restricting wall of the base member has a second guide surface inclined so as to approach the engaging claws of the button member as it goes downward. Switch device described. The outer diameter of the cylindrical portion of the base member becomes smaller as it goes upward,
The biasing member is a coil spring mounted around the cylindrical portion of the base member,
The switch device according to claim 1. The switch device according to claim 1, wherein the at least one protrusion of the base member includes a plurality of protrusions arranged at different angular intervals with the cylindrical portion as a center. The button member is
A button body including the shaft portion, the at least one extension piece, and a base portion to which the upper end of the shaft portion and the upper end of the at least one extension piece are connected;
A cover body that covers the base of the button body from above,
The cover body and the base portion of the button body constitute the operation portion,
The switch device according to any one of claims 1 to 6. The switch device according to claim 7, wherein the cover body is made of metal. The cover body is
A central portion located above the base portion of the button body,
The switch device according to claim 7, further comprising: an outer peripheral portion that extends downward from an outer peripheral edge of the central portion and surrounds a periphery of the base portion of the button body. The switch device according to claim 7, wherein a protrusion is formed on one of the base portion and the cover body of the button body, and a concave portion that receives the protrusion is formed on the other. A case body formed with an insertion opening into which a cigarette cartridge can be inserted along the axial direction,
A cigarette case comprising the switch device according to claim 1. The cigarette case according to claim 11, wherein the outer shape of the operation portion of the button member of the switch device is formed so as to be smoothly continuous with the outer shape of the case body.

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