Abstract: A contact-breaker device that can be miniaturized, realize low power consumption and low cost, and generate an irregular pulse current by causing irregular electrical conduction and insulation of a circuit. The contact-breaker device comprises: fixed terminals 12A and 12B secured at positions spaced apart from each other; and a movable member 11 capable of moving relative to the fixed terminals 12A and 12B and coming into or avoiding contact with the fixed terminals 12A and 12B based on its movement, thereby causing electrical conduction or insulation between the fixed terminals 12A and 12B; wherein the movable member 11 irregularly moves in accordance with externally applied vibration, thereby causing irregular electrical conduction or insulation between the fixed terminals 12A and 12B.

Abstract: A contact-breaker device that can be miniaturized, realize low power consumption and low cost, and generate an irregular pulse current by causing irregular electrical conduction and insulation of a circuit. The contact-breaker device comprises: fixed terminals 12A and 12B secured at positions spaced apart from each other; and a movable member 11 capable of moving relative to the fixed terminals 12A and 12B and coming into or avoiding contact with the fixed terminals 12A and 12B based on its movement, thereby causing electrical conduction or insulation between the fixed terminals 12A and 12B; wherein the movable member 11 irregularly moves in accordance with externally applied vibration, thereby causing irregular electrical conduction or insulation between the fixed terminals 12A and 12B.

Abstract: An ion toothbrush which can be tested on the supply voltage by turning on a switch, and concerning which assembling steps are simplified. This ion toothbrush comprises: a head (50) with brush bristles (51) implanted therein; a handle (10); and a battery (14) received in the handle (10). One electrode of the battery (14) is conductively connected with the external surface of the handle (10), and the other electrode is conductively connected with the vicinity of the implanted area of the brush bristles (51) at the head (50). This ion toothbrush further comprises: an LED (18) with its one terminal (18B) connected to one electrode of the battery (14), and with the other terminal (18A) connected to the other electrode of the battery; a spindle capable-of conductively connecting the other electrode of the battery.

Abstract: A cleaning tool which uses a disposable adhesive sheet, where the adhesive sheet which is the surface layer of an adhering roller may be peeled and torn in a simple and easy manner without causing the user annoyance or discomfort. The cleaning tool has an adhering roller with an adhesive sheet wound in layers thereon and supported rotatably about an axis. The adhesive sheet forming the surface layer of the adhering roller is peelable from the portion of the adhesive sheet forming the layer thereunder and torn at least in the direction of the width thereof. A stopper means for stopping rotation of the adhering roller is provided.

Abstract: There is provided an electrically driven toothbrush having a simple structure and capable of changing the reciprocation stroke of bristles in a simple operation. The toothbrush is composed of a head portion 10 including a bristle portion 15 studded with bristles 14, a grip portion 12 having a motor 22, an intermediate transmission member 20 mounted in the grip portion and connected to the head portion, and a conversion mechanism 24 interposed between the intermediate transmission member and the motor for converting a rotational movement of the motor into a reciprocal movement of the intermediate transmission member. At least the bristle portion of the head portion is resiliently tiltable with respect to an axis of the intermediate transmission member, and at least the reciprocation stroke of the bristle portion can be changed in accordance with the tilting distance of the bristle portion.

Abstract: A toothbrush for controlling brushing-stroke comprises a brush portion studded with bristles; a handle portion extended from the brush portion; a cavity associated with the handle portion for defining a space; and a moving member placed within the space for reciprocally moving within the space by reciprocal movement of the toothbrush and for hitting an end of the space and making a continuous hitting sound when the brushing-stroke of the reciprocal movement of the toothbrush is longer than a predetermined value. The use of the present toothbrush will reduce the brushing stroke until the continuous hitting warning sound ceases to perform the so-called "Bass' method " or "scrubbing method".

Abstract: An electronic toothbrush including a head portion at one end which is studded with bristles, a grip portion in the middle which contains a battery, and a voltage tester at the other end which is separable from the grip portion and has a tester body with coupling means associated with the grip portion for separably coupling the tester body with the grip portion. The grip portion has a first electrically conductive member which is adapted to be touched by a user and is electrically connected to one pole of the battery, and a second electrically conductive member which is adapted to be electrically connected to the bristles and is electrically connected to the other pole. The tester has a light emitting member mounted inside the tester body and visible from outside the tester body, and a pair of electrical conductors extending from the light emitting member and being exposed at least partially from the tester body.

Abstract: A voltage testing device for electric tooth-brushes comprises a device body, a light emitting member mounted to the device body, and a pair of electrical conductors mounted to the device body and having each one end connected to the light emitting member and the other end projecting outwardly of the device body.

Abstract: An electric tooth-brush has a head portion studded with bristles, and a grip portion removably coupled thereto. The grip portion accomodates a battery and carries an electrically conductive bar which has one end connected to the battery and the other end projecting outwardly from one end of the grip portion. The top surface of the grip portion is mounted with an electrically conductive cover which is connected to the battery.

Abstract: This electric tooth brush holder includes a cylindrical handle portion, and a motor, a drive unit and a cylindrical attachment disposed within said cylindrical handle portion, wherein said attachment is designed to reciprocate within the cylindrical handle portion through said drive unit by the action of said motor and further is provided on its top with a brush holding ring which has been disposed to stand erect normally and permitted to oscillate in the vertical direction.

Abstract: The illumination device comprises a body, an illumination means, a holding means and a switching means, the last mentioned three means being attached to said body. Said holding means includes a battery and a biasing means made of an electrically conductive material. The holding means is made of an electrically conductive material and is constantly electrically connected to one electrode of said battery through said biasing means. The biasing means is designed to function so as to keep the other electrode of the battery in the state of being constantly electrically connected to one terminal of said illumination means while keeping, in a steady state, the holding means in the state of being removed from the other terminal of the illumination means.

Abstract: An inspection device for cavities comprises a body and an inspection mirror which is installed on said body and is designed to be rotatable as well as tiltable in relation thereto.

Abstract: A controlling apparatus for the driving gear of a suction cleaner equipped with a container accommodating a suction fan together with a motor for actuating said fan, a suction hose, and a device for the paying-out and hauling-in of said suction hose together with a reversible motor for actuating said device, both of said motors being supposed to be controlled by means of controlling circuits to be actuated by a switch disposed near the fore end of said hose through a couple of lead wires buried in the hose, wherein said controlling circuits for these motors are respectively provided with three relays for actuating the respective motor and three switches for actuating said relays as incorporated therein, two of three circuits thus combined with said relay and actuating switch corresponding therewith are respectively provided with AC half-wave rectifiers having opposite polarities while the remaining one circuit is provided with contacts to be controlled by two relays included in said two circuits.

Abstract: A suction cleaner, wherein the interior of a container thereof is divided into two chambers, namely, the first chamber and the second chamber, by a partition, and the first chamber accommodates a suction fan, a filter member and a dust-receiving box installed therein while the second chamber randomly stores a suction hose, the rear end of said hose being rotatably supported within an opening provided in said partition while the front end of said hose projects out of an opening provided on one side of said container; a device for the paying-out and hauling-in of the hose is installed adjacent the inside of said opening provided on the container; lead wires are provided for the hose along the whole length thereof, the front end of said lead wires being connected with a switch mounted on the hose while the rear end of the same being connected with a ring contact provided on the hose; said movable contact is devised to be in touch with a fixed contact provided on the partition; and said fixed contact is connected