JP2008027792A - Portable lighting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable lighting device, compact and capable of responding sufficiently to needs of a variety of usage modes. <P>SOLUTION: The portable lighting device is composed of a main body substrate 2 and two pieces of lighting units which are installed around the axial center of a pivot 3 installed concentrically on both sides of the main body substrate 2. The lighting unit 4 consists of a rotating substrate 5 installed rotatably on a pivot 3 of the main body substrate 2, an illumination lamp 6 consisting of a light-emitting diode which is installed at the peripheral part of the rotating substrate 5 so that the optical axis may be oriented in a centrifugal direction of the pivot 3, a power supply battery for a lamp consisting of a button battery which is installed on a plate surface of the rotating substrate 5, and a cover 9 which is installed detachably on the rotating substrate 5 and has a lighting on-and-off operating switch 8 of the illumination lamp. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a portable lighting device, and more particularly to a portable lighting device that can be used in various ways such as various operations and leisure.

Conventionally, portable lighting fixtures such as flashlights and key lights have been marketed and widely used. Among such portable lighting fixtures, flashlights have a mini-bulb as a light source and a dry battery as a power source for the light source. In addition, the key light is compact and convenient to carry, but it has a low illuminance and it is difficult to say that it has a sufficient function as a lighting fixture. From such a viewpoint, Patent Document 1 proposes a portable lighting device using a light emitting diode as a light source.
JP 2002-367401 A

  The portable illuminator disclosed in Patent Document 1 is a light-emitting diode as a light source in view of the fact that the conventional illuminator using a miniature light bulb has low luminous efficiency and high power consumption, so that the volume of the battery increases. The size of the light emitting unit and the battery storage unit is reduced, and the overall size is reduced. However, a battery that can be recharged, a battery that can be recharged such as an alkaline storage battery or a nickel metal hydride storage battery has been disclosed as a battery stored in the battery storage unit, and therefore, the volume occupied by the battery storage unit is considered to decrease to the left. It was expected that there was a limit to downsizing.

  Moreover, the portable lighting fixture of patent document 1 is comprised so that the light emission part which accommodates a some light emitting diode with respect to a battery accommodating part is rotatably connected, and it can illuminate arbitrary directions with a light emission part. Has been. However, a plurality of light emitting diodes and their substrates are accommodated in one light emitting unit case, and thus the light emitting unit can be rotated, but the irradiation direction of each light emitting diode can be individually changed. Therefore, it was not possible to irradiate a plurality of locations at the same time or arbitrarily change the irradiation range, and could not sufficiently meet the needs of various usage modes.

  This invention is made | formed in view of the said situation, and it aims at providing the portable illuminating device which can fully respond | correspond to the needs of a various usage aspect compactly.

  The portable lighting device according to the present invention includes a main body substrate, and two lighting units that are individually pivotably attached around the axis of a support shaft that is concentrically fixed on both surfaces of the main body substrate. The lighting unit is installed on a rotating substrate rotatably attached to the support shaft of the main body substrate, and is installed on the periphery of the rotating substrate so that the optical axis faces the centrifugal direction of the support shaft. An illumination lamp made of a light emitting diode, a lamp power battery made of a button battery installed on the plate surface of the rotating board, and a lighting on / off operation of the lighting lamp mounted on the rotating board detachably. It is characterized by comprising a cover with a switch.

  In the present invention, the support shaft is formed on a fixed substrate fixed to both surfaces of the main body substrate, a gear concentric with the support shaft is fixed to the fixed substrate, and the rotating substrate meshes with the gear. An elastically biased ratchet claw is attached, and the rotation of the rotating substrate around the support shaft can be intermittently performed by meshing with a gear that resists the biasing elasticity of the ratchet claw. Can do. The lighting on / off operation switch may be a slide switch, and the sliding direction may be along the optical axis direction of the illumination lamp.

  Since the portable lighting device of the present invention uses a light emitting diode as an illumination lamp and uses a button battery as a power battery for the illumination lamp, the whole is compact, consumes less power, and has good luminous efficiency. A portable lighting device can be provided. Further, since the two lighting units can be individually turned on / off, only one of them or both can be turned on according to the conditions of the place of use. Furthermore, since both the illumination units can be individually rotated around the axis with respect to the support shaft, the irradiation field can be widened or narrowed by arbitrarily changing the rotation angle. In addition, it is also possible to irradiate different directions at the same time, and its usage is diverse.

  Further, the ratchet claw attached to the rotating board is meshed with the gear fixedly formed on the main body board, and the rotation of the rotating board around the support shaft is caused by the biasing elasticity of the ratchet claw. If the illumination unit can be intermittently engaged with the gear that resists this, the illumination unit can be stably held at an arbitrary rotational position, and the target object can be irradiated accurately. Furthermore, if the lighting on / off operation switch is composed of a slide switch formed so that the slide direction is along the optical axis direction of the illumination lamp, the switch operation is simple and the switch operation direction and the illumination Since the illumination direction of the lamp coincides, the switch operation can be performed without any sense of incompatibility regardless of the rotation position of the illumination unit. Further, since it is a mechanical switch, the battery has very little spontaneous discharge and is suitable for disaster prevention and emergency storage.

  The best mode for carrying out the present invention will be described below with reference to the drawings. 1 is a perspective view showing an example of the portable lighting device of the present invention, FIG. 2 is an exploded perspective view of the portable lighting device, FIG. 3 is a plan view of the interior of the portable lighting device, and FIG. FIG. 5B is an enlarged view of a portion X in FIG. 3 and shows an operation state thereof, and FIGS. 5A, 5B, 5C, 5D, and 5E are conceptual views showing usage modes of the portable lighting device. It is.

  The portable lighting device 1 shown in FIG. 1 has two main body substrates 2 and two pivotal attachments that are individually rotatable around the axis of a support shaft 3 concentrically fixed on both sides of the main body substrate 2. The lighting unit 4 is included. L in FIGS. 1 and 2 indicates the axis of the support shaft 3 that is the center of rotation. The illumination unit 4 has a rotating substrate 5 attached to the supporting shaft 3 of the main body substrate 2 so as to be rotatable around an axis L thereof, and an optical axis on the peripheral portion of the rotating substrate 5. 3, an illumination lamp 6 made of a light emitting diode (hereinafter referred to as LED) installed so as to face the centrifugal direction, a lamp power supply battery 7 made of a button battery installed on the plate surface of the rotating substrate 5, The cover 9 is detachably mounted on the rotating substrate 5 and has an on / off operation switch 8 for turning on the illumination lamp 7 on the outer surface. The support shaft 3 is formed on a fixed substrate 2 a fixed to both surfaces of the main body substrate 2. A gear 10 concentric with the support shaft 3 is fixed to the fixed substrate 2 a, and the rotating substrate 5 is connected to the rotation substrate 5. An elastically biased ratchet pawl 11 that meshes with the gear 10 is attached. The rotation substrate 5 is rotated about the support shaft 3 intermittently by meshing with the gear 10 against the urging elasticity of the ratchet pawl 11. The fixed substrate 2a may also serve as the main substrate 2 itself.

  Reference numerals 5a and 5b denote screws and washers for rotatably attaching the rotary substrate 5 to the support shaft 3. The rotating substrate 5 has an LED (illumination lamp) 6 at the periphery thereof, a lamp holding portion 5c for holding the optical axis thereof in the centrifugal direction of the support shaft 3, and two button batteries (on the plate surface). Lamp power supply batteries) 7 and 7 are provided. As the LED 6, a commercially available LED such as a white LED, a blue LED, and a red LED can be appropriately adopted, and these are combined in the two illumination units 4, for example, the white LED is used for normal illumination, and the red LED is very It is also possible to use them in combination as appropriate, taking into consideration design and fashionability. The LED 6 is held by the lamp holding portion 5d in a state where the two terminals 6a and 6a are fitted in the terminal grooves 5e and 5e formed on the bottom surfaces of the battery holding portions 5d and 5d. The two button batteries 7 and 7 are held by the battery holding portions 5d and 5d so that the front and back are reversed (plus and minus are reversed), and the respective positive and negative poles are fitted into the terminal grooves 5e and 5e. The terminals 6a and 6a are in contact with each other in an electrically conductive state. Further, two guide ribs 5 f and 5 f for guiding the contact terminal 8 a of the slide switch (lamp lighting on / off switch) 8 are formed on the plate surface of the rotating substrate 5.

  The ratchet pawl 11 is mounted on the plate surface of the rotating substrate 5 while being elastically biased by the compression coil spring 11a, and elastically meshes with a gear (number of teeth 12) 10 fixed to the fixed substrate 2a. Has been made. The meshing operation of the ratchet pawl 11 and the gear 10 will be described later. A cover 9 is detachably attached to the rotating substrate 5 so as to cover the above-described parts and the like equipped on the rotating substrate 5. This detachable mounting is performed by screwing the screw 9a into a female screw cylinder 5g formed on the rotating substrate 5. Reference numeral 9b denotes a screw hole for inserting the screw 9a. The slide switch 8 is attached to the cover 9 so that the sliding direction is along the optical axis of the LED 6. The slide switch 8 is fitted into an opening 9c provided in the cover 9 so that the lower half of the slide switch 8 faces the inside of the cover 9, and the contact terminal 8a is attached to the lower surface of the slide switch 8. The contact terminal 8a is made of a conductive metal plate having a spring property, and strides over the two button batteries 7 and 7 when the slide switch 8 is turned on, that is, when the slide switch 8 is pushed out to the LED 6 side. The contacts 8b, 8b formed in a downward angle at both ends thereof are configured to elastically contact the positive and negative poles of the button batteries 7, 7 in an electrically connected state. Accordingly, a power supply circuit for the LED 6 is established in this state, and the LED 6 is lit. When the slide switch 8 is slid in the reverse direction, the contact terminal 8a is detached from the button batteries 7 and 7, and the white LED 6 is turned off.

The screw hole 9b is formed at a position hidden by the slide switch 8 when the slide switch 8 is turned off. The guide ribs 5f and 5f are formed with valleys 5h and 5h for receiving the contacts 8b and 8b of the contact terminal 8a. The slide switch 8 is received by elastically receiving the contacts 8b and 8b in the valleys 5h and 5h. The contact point 8b, 8b is elastically escaped from the valleys 5h, 5h to be pushed out to the LED 6 side during the on operation, thereby giving the user a sense of operation during the on operation. .
Two illumination units 4 having the above-described configuration are paired, and are attached to both surfaces of the main body substrate 2 (one is indicated by a two-dot chain line in FIG. 2) so as to be individually rotatable around the axis L of the support shaft 3. ing. A protruding portion 2b is provided at one peripheral edge portion of the main body substrate 2, and a locking hole 2c for binding a hanging string or strap 12 (see FIG. 1) is formed in the protruding portion 2b.

  The meshing operation of the ratchet pawl 11 and the gear 10 accompanying the rotation operation of the illumination unit 4 will be described with reference to FIGS. 3 and 4A and 4B. As described above, the rotating substrate 5 is supported so as to be rotatable around the axis L of the support shaft 3 and the cover 9 is detachably attached to the rotating substrate 5. Each illumination unit 4 can be gripped and rotated about the support shaft 3 in either of the 360 ° and right and left directions. Thus, as shown in FIG. 4A, the ratchet pawl 11 elastically biased by the compression coil spring 11a meshes with the gear 10 fixed to the fixed substrate 2a concentrically with the support shaft 3. During the turning operation, as shown in FIG. 4B, the ratchet pawl 11 repeatedly goes over the tooth tip of the gear 10 against the elasticity of the compression coil spring 11a and repeatedly fits into the adjacent tooth base. The rotation operation is performed intermittently. When the LED 6 is directed in a desired direction, the rotation operation is stopped, and the ratchet claw 11 is fitted into one of the tooth bases, and is stopped and maintained at that position. Such a rotation operation is individually performed in the two illumination units 4 and 4.

  In this embodiment, since the number of teeth of the gear 10 is 12, the intermittent rotation operation is performed every 30 °. Therefore, the relative irradiation angle between the two irradiation units 4 can be estimated by counting the number of intermittent rotation operations. Needless to say, the intermittent rotation angle can be arbitrarily set by changing the number of teeth of the gear 10. When replacing the button battery 7, etc., it can be done simply by loosening the screw 9a and removing the cover 9. Further, if the rotating substrate 5 and the cover 9 are made of a synthetic resin integrally molded product, they can be obtained at a low cost, and the elastic portion peculiar to the synthetic resin allows the engagement portion of the cover 9 to be attached and detached. The shape design of the locking portion of the lamp holding portion 5c or the battery holding portion 5d can be easily achieved. Furthermore, by using a synthetic resin molded body, coloring can be freely performed, and a product design that can inspire consumers to purchase can be realized.

  FIGS. 5 (a) to 5 (e) show examples of various usage modes of the portable lighting device 1, and each lighting unit 4 is rotated to an arbitrary position around the axis of the support shaft 3. It has been shown that it can be retained. The one-dot chain line in the figure indicates the irradiation field from each LED 6. The mode of Fig.5 (a) has shown the state which orient | assigns the two illumination units 4 to the same direction, and is lighting one or both LED6. When both LEDs 6 are turned on simultaneously in the same direction, the illuminance is increased and the target part can be illuminated brightly. The mode of FIG.5 (b) shows the state which lights up both LED6 simultaneously by making one illumination unit 4 into a horizontal direction and making the other illumination unit 4 into diagonally downward. The mode of this example includes, for example, a usage mode when walking while illuminating a distant place and a step at the same time. The mode of FIG.5 (c) shows the state which turned on both the LED units 6 with the both illumination units 4 turned to the front-back and horizontal direction. In this example, for example, when walking or riding a bicycle, the front side is illuminated and the rear side is informed of the existence of itself to other vehicles, and the lateral distance is measured in a dark space. Examples of usage in work and the like are also included.

  The mode of FIG. 5 (d) shows a state in which both the LED units 6 are turned on at the same time with both illumination units 4 at a small angle (about 30 °). In the aspect of this example, since the irradiation fields of both LEDs 6 partially overlap, the irradiation fields can be widened and a wide range can be illuminated. The mode of FIG.5 (e) shows the state which orient | assigns both the illumination units 4 to the up-down direction, and is lighting both LED6 simultaneously. As an example of this example, for example, a usage mode for measuring a longitudinal distance in a dark space can be used.

  The use mode shown in FIG. 5 is an exemplification, and it is needless to say that other use modes are possible according to the intended use of the user. In this way, by making the two lighting units 4 individually rotatable, night work auxiliary lighting for all occupations, dark place auxiliary lighting (behind the ceiling, under the floor, wiring work in the control panel, etc.), walking at night Assistance lighting for bicycles, jogging, etc. Nighttime cycling assistance lighting, outdoor lighting for fishing, camping, driving, etc., lighting for preventing traffic accidents such as when attending school, auxiliary lighting for walking and searching for indoors at night, earthquakes and disasters Various usage modes are possible, such as emergency lighting for dark action due to power outages, auxiliary tools for signaling with light from a distant person, lighting for searching for objects in the bag, and lighting up the interior.

  In addition, it is also possible to incorporate the control mechanism which blinks at the time of lighting in the on / off circuit of the illumination lamp 6. It goes without saying that the outer shape of the portable lighting device 1 is not limited to the illustrated example, and various shapes can be adopted in consideration of design.

It is a perspective view which shows an example of the portable lighting fixture of this invention. It is a disassembled perspective view of the portable lighting fixture. It is a top view inside the portable lighting fixture. (A) and (b) are the enlarged views of the X section of Drawing 3, and are the figures showing the operation state. (A) (b) (c) (d) (e) is a conceptual diagram which shows the various usage aspects of the portable lighting fixture.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Portable lighting fixture 2 Main body board 2a Fixed board 3 Support axis 4 Illumination unit 5 Rotating board 6 Light emitting diode (illumination lamp)
7 Button battery (power battery for lamp)
8 Lighting ON / OFF switch 9 Cover 10 Gear 11 Ratchet claw L Shaft center

Claims (3)

A main body substrate, and two lighting units that are individually pivotably mounted around the axis of a support shaft concentrically fixed on both surfaces of the main body substrate,
The lighting unit includes a rotating substrate rotatably attached to a support shaft of the main body substrate, and a light emitting diode installed at a peripheral portion of the rotating substrate so that an optical axis faces a centrifugal direction of the support shaft A lamp power battery comprising a button battery installed on the plate surface of the rotating board, and a lighting on / off operation switch for the lighting lamp detachably mounted on the rotating board. A portable lighting device comprising a cover provided. The portable lighting device according to claim 1,
The support shaft is formed on a fixed substrate fixed to both surfaces of the main body substrate, a gear concentric with the support shaft is fixed to the fixed substrate, and the rotating substrate is elastically biased to mesh with the gear. The ratchet pawl is attached, and the rotation of the rotating substrate around the support shaft can be intermittently performed by meshing with a gear that resists the urging elasticity of the ratchet pawl. Portable lighting fixture. The portable lighting device according to claim 1 or 2,
The portable lighting device, wherein the lighting on / off operation switch is a slide switch, and a sliding direction thereof is along an optical axis direction of the illumination lamp.

Images