Abstract: A push switch according to the present invention includes a case with a substantially-box shape, a cover, a manipulation member, a movable contact point, and a spring with a substantially-U-shape. The case with the substantially-box shape is provided with a common contact point and a fixed contact point in its inner bottom surface. The movable contact point is swayably placed on the common contact point and is extended in a leftward and rightward direction. The spring with the substantially-U-shape has one end hitched on a lower surface of the cover, the other end slidably placed on an upper surface of the movable contact point, and a center portion being in elastic contact with a lower surface of the manipulation member. This enables to make the entire push switch have a reduced height and to certainly connect and separate relatively-larger electric currents of about several amperes therethrough.

Abstract: A spring member is provided in a switch having a lever to receive a pushing force from outside, by bringing an arch-part formed at the left end of the spring member into resilient contact with the bottom surface of the lever, in addition to the movable contact, the spring member also can return the lever. In the case of developing a compact and low-profile switch, the returning force of the lever can be increased to perform electrical connection or disconnection reliably.

Abstract: An opening and closing device to be used in a variety of electronic apparatuses is disclosed, and the opening and closing device can be manufactured at a low cost and ensures a positive opening/closing action. After the reversing cam moves along an axial line, a movable cam protruding on an inner wall of a ring-like movable unit elastically urges against a reversing cam. While the movable cam is held at a given angle, the movable cam elastically urges against the reversing cam and rotates, so that a stationary unit needs no stationary cam during this given angle being kept. The stationary unit thus needs the stationary cam on its outer wall only in part but not entirely. As a result, the stationary unit can be manufactured with ease by forming process.

Abstract: An opening-closing device includes a fixed gear of a fixed body, a conversion gear engaged with the fixed gear, a movable gear of a movable body, and a relay gear engaged with the conversion gear and with the movable gear, all of which are attached to a locking plate. The movable body can be held at a predetermined angle with respect to the fixed body by making an engaging portion in the locking plate is contacted with a locking portion in the fixed body and by making the conversion gear move to another position when the movable body is opened at the predetermined angle with respect to the fixed body. Moving the conversion gear to another position makes it possible to perform opening and closing operations in a greater angle. Thus, the opening-closing device can have a simple structure and perform a variety of opening and closing operations.

Abstract: An opening and closing device which includes a roughly cylindrical stator, a concavo-convex stator cam provided at an end of the stator, a ring-like rotor rotatably disposed relative to the stator, a rotor cam opposedly protruding from an inner periphery or outer periphery of the rotor, and a spring pushing the rotor against the stator. The rotor cam slides on the concavo-convex stator cam during the opening and closing operations. In this structure, the opening and closing device is openable roughly up to 180°, and a force in the opening direction is applied to a movable housing even when the movable housing is opened not less than 165°. Accordingly, this opening and closing device eliminates wobbling in the opening and closing direction, and ensures reliable opening and closing operations and retention at a predetermined angle.

Abstract: An opening and closing device in which a movable gear is movably disposed on a fixed plate, and a fixed gear engaged with the movable gear is secured to a right end of a spring member applying a force to a movable plate in a moving direction. This right end of the spring member is installed in an L-shaped guide hole and a left end of the spring member is attached to the movable plate. With this structure, the opening and closing device offers combined operations in an up-and-down direction and a right-and-left direction orthogonal to the up-and-down direction.

Abstract: A switch device includes a wiring board having a cutout provided therein, a land provided on an upper surface of the wiring board around the cutout, and a switch. The switch includes a lever, a switch contact activated upon the lever being moved in a predetermined direction, a case including a step portion protruding from a surface thereof and positioned in the cutout of the wiring board, and a terminal protruding from the case and mounted on the land of the wiring board. The switch device securely holds the switch on the wiring board with a simple structure, and allows the switch to be activated reliably.

Abstract: An opening and closing mechanism includes a fixed member; a movable member disposed on the top face of this fixed member to be movable and rotatable in predetermined directions; a spring applying a spring force in the moving and rotating directions of this movable member; and a guide for restricting movement and rotation of the movable member.

Abstract: A spring member is provided in a switch having a lever to receive a pushing force from outside, by bringing an arch-part formed at the left end of the spring member into resilient contact with the bottom surface of the lever, in addition to the movable contact, the spring member also can return the lever. In the case of developing a compact and low-profile switch, the returning force of the lever can be increased to perform electrical connection or disconnection reliably.

Abstract: An opening and closing device in which a movable gear is movably disposed on a fixed plate, and a fixed gear engaged with the movable gear is secured to a right end of a spring member applying a force to a movable plate in a moving direction. This right end of the spring member is installed in an L-shaped guide hole and a left end of the spring member is attached to the movable plate. With this structure, the opening and closing device offers combined operations in an up-and-down direction and a right-and-left direction orthogonal to the up-and-down direction.

Abstract: A switch device includes a wiring board having a cutout provided therein, a land provided on an upper surface of the wiring board around the cutout, and a switch. The switch includes a lever, a switch contact activated upon the lever being moved in a predetermined direction, and a case including a step portion protruding from a surface thereof and positioned in the cutout of the wiring board, and a terminal protruding from the case and mounted on the land of the wiring board. The switch device securely holds the switch on the wiring board with a simple structure, and allows the switch to be activated reliably.

Abstract: An opening and closing device to be used in a variety of electronic apparatuses is disclosed, and the opening and closing device can be manufactured at a low cost and ensures a positive opening/closing action. After the reversing cam moves along an axial line, a movable cam protruding on an inner wall of a ring-like movable unit elastically urges against a reversing cam. While the movable cam is held at a given angle, the movable cam elastically urges against the reversing cam and rotates, so that a stationary unit needs no stationary cam during this given angle being kept. The stationary unit thus needs the stationary cam on its outer wall only in part but not entirely. As a result, the stationary unit can be manufactured with ease by forming process.

Abstract: An opening-closing device includes a fixed gear of a fixed body, a conversion gear engaged with the fixed gear, a movable gear of a movable body, and a relay gear engaged with the conversion gear and with the movable gear, all of which are attached to a locking plate. The movable body can be held at a predetermined angle with respect to the fixed body by making an engaging portion in the locking plate is contacted with a locking portion in the fixed body and by making the conversion gear move to another position when the movable body is opened at the predetermined angle with respect to the fixed body. Moving the conversion gear to another position makes it possible to perform opening and closing operations in a greater angle. Thus, the opening-closing device can have a simple structure and perform a variety of opening and closing operations.

Abstract: Inclined plane is provided at the tip of rotor cam. On the other hand, inclined planes are also provided in specific positions of stator cam. Because of this structure, in the specific positions, the inclined planes are in resilient contact with each other. Thus, the load is increased only in the specific positions without an increase in the load of spring. This structure can provide an opening and closing device capable of securely holding only desired positions without affecting the feel of opening and closing operation of the entire device, and electronic equipment using the device.

Abstract: To provide a folding mechanism capable of securely holding its opened and closed positions and an electronic apparatus employing the same. The folding mechanism is constructed by disposing outer circumferential fixed cam on the outer circumferential side and inner circumferential fixed cam on the inner circumferential side of a side surface of fixed member and, further, disposing outer circumferential movable cam on the outer circumferential side and inner circumferential movable cam on the inner circumferential side of a side face of movable member in confronting relation with the fixed cams.

Abstract: An opening and closing device which includes a roughly cylindrical stator, a concavo-convex stator cam provided at an end of the stator, a ring-like rotor rotatably disposed relative to the stator, a rotor cam opposedly protruding from an inner periphery or outer periphery of the rotor, and a spring pushing the rotor against the stator. The rotor cam slides on the concavo-convex stator cam during the opening and closing operations. In this structure, the opening and closing device is openable roughly up to 180°, and a force in the opening direction is applied to a movable housing even when the movable housing is opened not less than 165°. Accordingly, this opening and closing device eliminates wobbling in the opening and closing direction, and ensures reliable opening and closing operations and retention at a predetermined angle.

Abstract: An opening and closing mechanism includes a fixed member; a movable member disposed on the top face of this fixed member in a movable and rotatable fashion in a predetermined direction; a spring applying a spring force in the moving and rotating directions of this movable member; and a guide for restricting movement and rotation of the movable member.

Abstract: An opening and closing device and an electronic apparatus using this device. In an urging section, a movable member including a movable cam on its side is urged by a spring. A slide member includes, at one end, a stationary cam, opposed to the movable cam, for resiliently contacting the movable cam. The movable member is urged in opening and closing directions in open and closed states, respectively, according to which portion of the stationary cam resiliently contacts the movable cam. A reversing section includes a release member and a reversing member. The release member includes a release cam resiliently contacting a support cam at the other end of the slide member, and the reversing member is inserted into the slide member and includes a reversing cam. When the release cam is disconnected from the support cam, the slide member slides axially, whereby the movable cam is disconnected from the stationary cam and resiliently contacts the reversing cam.

Abstract: The opening and closing device involves a stationary member, a stationary cam, a rotary cam, a rotary member, a spring disposed between the stationary member and the stationary cam which pushes the stationary cam against the rotary cam, and a shaft passing through the stationary member, the stationary cam, the spring, the rotary cam and the rotary member. A head of the shaft holds the stationary member or the rotary member rotatably at its first end, and a caulked portion of the shaft fixes the shaft to the rotary member or the stationary member at its second end. Upon opening or closing operation, the stationary member or the rotary member, which is fixed to the shaft, rotates with the shaft integrally, causing no wear. The opening and closing device can realize smooth and sure operation without irregular feeling.

Abstract: An opening and closing device includes a rotor pressed by a rotor spring and a reverse-rotor pressed by reverse-rotor spring, of which rotor cam and reverse-rotor cam are respectively placed at a certain position of stator cam. With this construction, rotor is urged in an opening direction in the opening condition and urged in a closing direction in the closing condition with respect to stator. A release cam pushes the reverse-rotor cam by moving a releaser along an axis, so that the device opens.