JP2603117Y2 - Push button device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a push button device for electronic equipment, and more particularly to a structure of a zoom operation button of a video camera.

[0002]

2. Description of the Related Art The structure of a zoom operation button of a video camera is disclosed in, for example, Japanese Utility Model Laid-Open Publication No. 61-128612.
(G02B 7/10). As shown in the publication, the conventional one is configured such that an operation member of a portion directly pressed by a finger and two switches pressed by the operation member are integrally formed.

[0003]

In such a conventional push-button device, since the operating member and the switch are integrally formed, the thickness of the entire push-button device is increased. Therefore,
If an attempt is made to provide a cover member that covers other operation buttons or a cover member that covers a cassette insertion slot in a camera-integrated video tape recorder, a part of the cover member becomes thicker for the push button device, and the video camera or the camera cannot be used. This will hinder the miniaturization of the entire body type video tape recorder. Further, there is a problem that wiring using a harness or the like is required to connect a switch provided on the lid member to an electric circuit that requires the switch, thereby reducing productivity and reliability.

The present invention has been made to solve such a drawback, and an object of the present invention is to provide a push button device suitable for being provided on a cover member.

[0005]

According to the present invention, there is provided a push button device comprising: a lid member rotatably held by an electronic apparatus main body; an operation member provided on a surface of the lid member so as to be vertically movable;
A protruding portion provided on the operation member and protruding in the direction of the rotation center of the lid member; a hinge portion serving as a fulcrum of the electronic device main body; and the operation is performed only when the lid member is closed. A lever member that rotates with a contact portion pressed by the protrusion in accordance with the movement of the member as a point of force; and a switch provided on the electronic device main body and pressed at an action point of the lever member. It is characterized by.

[0006]

When the operating member is pushed only when the lid member is closed, the projection pushes the lever member, and the lever member pushes the switch.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to the drawings showing the embodiments.

FIG. 2 is an external perspective view of a camera-integrated video tape recorder according to an embodiment of the present invention. FIG. 2A shows a state in which the lid member 2 covering the cassette insertion slot 1 is open,
FIG. 2B shows a state in which the lid member 2 is closed. As shown,
The lid member 2 is provided with an operation member 3 for operating a zoom motor (not shown) for moving the zoom lens.
Reference numeral 4 denotes an optical lens barrel including the zoom lens, and 5
Denotes a microphone, 6 denotes an electronic viewfinder, 7 denotes a detachable driving battery, 8 denotes a recording start / stop button, and 9 denotes a grip belt.

Next, the internal structure of the embodiment will be described with reference to FIG.

FIG. 3 is a partial cross-sectional view taken along a plane passing through the center of the operation member 3 in FIG. 2 and perpendicular to the optical axis of the optical lens barrel 4, and FIGS. 2 correspond to A and B. As shown in the figure, a support shaft 3a of the operation member 3,
3b is held by U-shaped ribs 2a, 2b provided on the operation portion support member 21 of the lid member 2. Further, the operation member 3 is provided with a protrusion 3c protruding in the direction of the rotation center 22 of the lid member 2. The main body 10 is provided with a lever member 11, its arm 11a, a printed circuit board 12 on which an electric circuit is mounted, a switch 13a provided on the printed circuit board 12, and a video tape recorder mechanism 14.

However, since FIG. 3 is a partial sectional view, only one set of the projection 3c, the arm member 11a, and the switch 13a is shown, but as shown in FIG.
d, an arm member 11b, and a switch 13b are provided. The operation member 3 moves like a seesaw by pressing the user's finger around the support shafts 3a and 3b. The detailed description of FIG. 1 will be given later.

As shown in FIG. 3, when the lid member 2 is open, the projection 3c and the lever member 11 do not come into contact with each other, but when the lid member 2 is closed, the spherical member provided at the tip of the projection 3c is closed. The projection 3e is provided on the arm 11 of the lever member 11.
a can be contacted. When the operation member 3 is pressed in a state where the lid member 2 is closed, the operation member 3 rotates around the support shafts 3a and 3b, and the spherical protrusion 3e comes into contact with and pushes the arm portion 11a serving as a point of force of the lever member 11. And the arm 11a
Rotates about a hinge 11c provided on the main body side, and a protrusion 11e provided on the arm 11a presses the switch 13a. FIG. 4 shows a state where the operating member 3 is operated and the switch 13a is pressed.

Next, the main part of this embodiment will be described in detail with reference to FIG. FIG. 1 is an exploded perspective view around the operation member 3 and the lever member 11. Reference numeral 21 denotes an operation portion support member which is a part of the lid member 2, and includes U-shaped ribs 2a and 2b,
c and 2d are provided. The operating member 3 is connected to the support shafts 3a and 3b by U-shaped ribs 2a and 2b so that the seesaw operation can be performed.
Hold with. In addition, the flexible projections 2c and 2d push the operation member 3 from the lower surface, and give an appropriate operation feeling and restoring force to the seesaw operation. Regardless of the return force of the tact switch, etc.
In addition, since no metal spring is used, reliability against electrostatic breakdown is improved.

On the other hand, the protrusion 3 provided on the operation member 3
The spherical projections 3e and 3f of c and 3d can come into contact with the arm portions 11a and 11b of the lever member 11 in the state of FIG. 1, that is, in a state where the lid member 2 is closed. Switch 13
a printed circuit board 12 provided with a and 13b, and a lever member 1
1 is provided on the main body side.

When the operation member 3 is not operated, the movable projection 2
It is held at the neutral position at c and 2d. When one of the operation members 3, for example, the 3W side is pressed, the projection 3c is lowered by the seesaw operation, and the spherical projection 3e pushes the arm 11a of the lever member 11. The arm 11a rotates around the hinge 11c, and the protrusion 11e of the arm 11a presses the switch 13a. The same operation is performed even if the other of the operation members 3, that is, the 3T side is pressed, and the operation returns to the neutral position after the operation is completed.

Although the embodiment of the present invention has been described above, the present invention is not limited to the embodiment, and various applications are possible. For example, the operating member may be vertically movable using an elastic member instead of the seesaw operation, and the number of switches may be one.

[0017]

According to the present invention as described above, the push button device can be provided on the lid member without increasing the thickness of the lid member by separating the operation member from the switch. Therefore, it is effective in reducing the size of the entire apparatus. In addition, since the switch cannot be operated by the operation member unless the lid member is in the closed state, erroneous operation in the state where the lid member is opened is prevented. Furthermore, the present invention eliminates the need for wiring using a harness or the like, which is conventionally required, for connecting a switch to an electric circuit that requires the switch, thereby improving reliability against electrostatic breakdown and the like, and improving the assemblability. Has an excellent effect.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a main part of an embodiment of the present invention.

FIG. 2 is an external perspective view of the embodiment of the present invention.

FIG. 3 is a partial cross-sectional view of the embodiment of the present invention.

FIG. 4 is a partial cross-sectional view of the embodiment of the present invention.

[Explanation of symbols]

 2 Lid member 3 Operation member 3c, 3d Projection 11 Lever member 13a, 13b Switch

Claims (1)

(57) [Scope of request for utility model registration] A cover member rotatably held by a main body of the electronic device; an operation member provided on a surface of the cover member so as to be vertically movable; and a rotation member provided on the operation member and rotating the cover member. A contact protruding in the direction of the center of movement, a hinge portion serving as a fulcrum on the electronic device main body, and being pressed by the protrusion in accordance with the movement of the operating member only when the lid member is closed; A push button device, comprising: a lever member that rotates with a portion as a power point; and a switch provided on the electronic device main body and pressed by an action point of the lever member.