JP2010165606A - Portable illumination device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable illumination device capable of being compact through storage of a battery in a base axis and preventing a broken wire or unlighting even when a power source unit is rotated by 360 degrees. <P>SOLUTION: The portable illumination device 1 includes a battery case 5 for housing a battery 4, a drive unit 8 including a switch 7 for switching on/off a LED (power source) 6 and power feeding from the battery 4 to the LED 6, a light source unit 2 having a base 9 for holding the drive unit 8 and the battery case 5, and a base case 3 for holding the light source unit 2 in a way that allows the light source unit 2 to rotate by 360 degrees around a first axis (vertical axis) disposed in a first direction. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a portable lighting device capable of rotating a light source unit including a light source and a battery by 360 ° around one axis.

  A lamp as shown in FIG. 11 is proposed in Patent Document 1 for a portable lighting device that is used for a rider such as a bicycle when traveling at night or used for tire replacement at night of an automobile. .

  That is, FIG. 11 is a perspective view of the lamp proposed in Patent Document 1, and the illustrated lamp 101 includes a longitudinal axis X extending in a first direction and a first axis perpendicular to the longitudinal axis X. A base (not shown) having a transverse axis Y extending in two directions is provided, and a pivot arm 102 is mounted on the base so as to be rotatable through 180 ° about the transverse axis Y. A plurality of (three in the illustrated example) LEDs 103 are attached to the pivot arm 102, and electric means (not shown) including a battery and a switch for supplying power to each LED 103 are provided in the base and the pivot arm 102. Is housed in. A cover 104 is attached to the base, and the cover 104 and the base rotate about the longitudinal axis X.

JP 2007-059398 A

  By the way, when an LED is used as a light source of a portable lighting device, a plurality of batteries must be used in order to ensure the light quantity of the LED and the lifetime as illumination, but the conventional lamp 101 shown in FIG. However, since a space for the battery is required, there is a problem that the lamp 101 itself is increased in size when a plurality of batteries are used.

  Further, in the conventional lamp 101 shown in FIG. 11, the pivot arm 102 requires a larger diameter than the battery housing portion, and there is a problem that the pivot arm 102 cannot be used when there is no degree of freedom with respect to the lateral axis Y.

  The present invention has been made in view of the above problems, and the object of the present invention is to reduce the size by storing the battery in the shaft of the base, and to disconnect or turn off the power unit even if it is rotated 360 °. It is an object of the present invention to provide a portable lighting device that does not generate the above.

In order to achieve the above object, the invention according to claim 1 includes a battery case that houses a battery, a light source, a drive unit that includes a switch for turning on / off power supply from the battery to the light source, the drive unit, A light source unit having a base for holding a battery case;
A base case for holding the light source unit so as to be able to rotate 360 ° about the first axis arranged in the first direction;
The portable lighting device is configured by the above.

  According to a second aspect of the present invention, in the first aspect of the invention, by engaging a plurality of claws protruding from one of the light source unit and the base case with a plurality of engaging grooves formed at the other. The light source unit is rotatably held with respect to the base case, and the claw and the engagement groove with which the claw engages are formed at an unequal angular pitch in the circumferential direction.

  According to a third aspect of the invention, in the first or second aspect of the invention, the drive unit is pivotally supported on the base so as to be rotatable by 90 ° or more about a second axis orthogonal to the first axis. Features.

  According to a fourth aspect of the present invention, in the third aspect of the present invention, a click mechanism including a plurality of concave and convex portions is provided around a shaft support portion of the drive portion to the base.

  The invention according to claim 5 is the invention according to claim 4, wherein the concave and convex portions are provided on both sides of the shaft support portion of the driving portion, and the arrangement phases of the concave and convex portions provided on each side are shifted from each other. And

  According to the first aspect of the present invention, the light source unit including the light source and the battery is held to be able to rotate 360 ° around the first axis with respect to the base case, and the battery is accommodated in the axis of the base. There is no need to separately provide a space for the battery, and the portable lighting device can be miniaturized. Even if the light source unit is rotated 360 ° with respect to the base case, the light source, battery, etc. included therein are Since it rotates integrally, the lead wire for supplying power from the battery to the light source is not broken, and a problem such as the light source does not light does not occur.

  According to the second aspect of the present invention, the claw formed on one side of the light source unit and the base case and the engaging groove formed on the other side are formed at an irregular pitch in the circumferential direction. Even in this case, at least one of the claws and the engaging groove are engaged with each other, and the occurrence of a problem that the light source unit falls off the base case is prevented.

  According to the invention of claim 3, since the drive unit including the light source is pivotally supported by 90 ° or more around the second axis orthogonal to the first axis, the base case is fixed, Light can be irradiated in any direction within a range of at least a solid angle of 180 °.

  According to invention of Claim 4, a click feeling is provided to rotation (rise / fall) of a drive part by the click mechanism by a some uneven | corrugated | grooved part, and the standing angle of a drive part can be set arbitrarily.

  According to the fifth aspect of the present invention, the concave and convex portions constituting the click mechanism are provided on both sides of the shaft support portion of the drive unit, and the arrangement phases of the concave and convex portions provided on each side are shifted from each other. Positioning can be performed by finely adjusting the angle at a pitch that is ½ of the arrangement pitch of the uneven portions provided.

It is a perspective view of the portable illuminating device which concerns on this invention. It is a top view of the portable illuminating device which concerns on this invention. It is the sectional view on the AA line of FIG. It is a front view of the portable illuminating device which concerns on this invention. It is the BB sectional view taken on the line of FIG. It is a perspective view which removes and shows the drive part of the portable illuminating device which concerns on this invention. It is a disassembled perspective view of the portable illuminating device which concerns on this invention. It is a bottom view of the light source unit of the portable illuminating device which concerns on this invention. It is a front view of the base case of the portable illuminating device which concerns on this invention. It is CC sectional view taken on the line of FIG. It is a perspective view of the lamp proposed in patent documents 1.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  1 is a perspective view of a portable lighting device according to the present invention, FIG. 2 is a plan view of the portable lighting device, FIG. 3 is a cross-sectional view taken along line AA of FIG. 2, and FIG. 5 is a cross-sectional view taken along line B-B in FIG. 4, FIG. 6 is a perspective view showing the portable lighting device with the drive unit removed, FIG. 7 is an exploded perspective view of the portable lighting device, and FIG. 9 is a bottom view of the light source unit of the portable lighting device, FIG. 9 is a front view of the base case of the portable lighting device, and FIG. 10 is a sectional view taken along the line CC of FIG.

  The portable lighting device 1 according to the present embodiment is used by attaching it to a wrist such as a wrist of a motorcycle rider or a driver of an automobile, and the light source unit 2 having a substantially cylindrical shape is arranged at the center of the base case 3. Is fitted into a circular recess 3A (see FIG. 6) that can be rotated 360 ° horizontally. Here, as shown in FIG. 1, the light source unit 2 has a first axis (hereinafter referred to as “vertical axis”) X arranged in the vertical direction, which is the first direction, as a center with respect to the base case 3. It is held so that it can rotate 360 °.

  By the way, as shown in FIG. 3, the light source unit 2 includes a battery case 5 that houses a cylindrical battery 4, three LEDs 6 that are light sources, and a switch that turns on / off power supply from the battery 4 to the LEDs 6. And a base 9 that holds the drive unit 8 and the battery case 5, and electrodes 10 and 11 are arranged above and below the battery 4.

  The three LEDs 6 provided in the driving unit 8 are mounted on the substrate 12 and arranged in the circumferential direction. The switch 7 includes a switch cap 13 exposed on the upper surface of the driving unit 8 and the switch. A switch terminal 15 connected to the cap 13 by a screw 14 is provided, and power supply from the battery 4 to the LED 6 is turned ON / OFF by sliding in the direction of the arrow in the figure.

  Thus, there are three claws 9a projecting vertically downward around the base 9 of the optical unit 2, but as shown in FIG. 8, these claws 9a have an unequal angular pitch in the circumferential direction. Is formed. That is, the circumferential array pitch angles θ1, θ2, and θ3 of the claws 9a are set to different values (θ1 ≠ θ2 ≠ θ3).

  As shown in FIGS. 7 and 10, three claws 9 a protruding from the base 9 of the light source unit 2 engage with the inner periphery of the circular recess 3 </ b> A formed in the base case 3. Three engagement grooves 3a, 3b, 3c are formed, but these engagement grooves 3a, 3b, 3c are formed at an unequal angular pitch in the circumferential direction. That is, the circumferential arrangement pitch angles α1, α2, α3 and circumferential lengths of the engagement grooves 3a, 3b, 3c are set to different values (α1 ≠ α2 ≠ α3). A bifurcated attachment portion 3B is formed at both ends of the base case 3, and a band (not shown) is attached to these attachment portions 3B.

  By the way, in the present embodiment, the drive unit 8 of the light source unit 2 rotates by 90 ° or more about the second axis (hereinafter referred to as “lateral axis”) Y orthogonal to the vertical axis X. The side of the drive unit 8 on which the LED 6 is provided can be erected at an arbitrary angle. Here, the pivot mechanism with respect to the base 9 of the drive part 8 is demonstrated based on FIG.5 and FIG.6.

  A hollow block-shaped support portion 9A is erected integrally on the upper surface of the base 9 opposite to the side on which the LED 6 is disposed, and a lateral hole 9b is provided through the support portion 9A. A plurality (four in the illustrated example) of circular hole-shaped recesses 9c (only one side is shown in FIG. 6) are provided along the rotation locus of the drive unit 8 around the horizontal holes 9b on the left and right sides of the support portion 9A. Are formed in an arc shape at an appropriate angular pitch.

  Thus, a bifurcated support portion 8A is formed on the side of the drive portion 8 opposite to the side where the LED 6 is disposed, and a recess 8a formed between these support portions 8A is erected on the base 9. Further, the drive unit 8 is fitted into the support portion 9A, and the support portions 8A and 9A are connected by two hollow shafts 16 inserted through the horizontal holes 8b and 9b penetrating through the support portions 8A and 9A. As described above, it is pivotally supported so that it can be rotated by 90 ° or more with respect to the base 9 about 16 (lateral axis Y).

  Here, as shown in FIG. 5, the inner surface of each bifurcated support portion 8A of the drive unit 8 is a circle that selectively fits into the recesses 9c formed on the left and right surfaces of the support portion 9A on the base 9 side. Columnar convex portions 8c are respectively formed, and the convex portions 8c and the concave portions 9c that are fitted to each other constitute a click mechanism, and by this click mechanism, the hollow shaft 16 (lateral axis Y) of the drive portion 8 is formed. A click feeling is given to the rotation around the center. In the present embodiment, in the concave portion 9c and the convex portion 8c constituting the click mechanism, the concave portion 9c provided on one side of the support portion 9A of the base 9 and the driving portion 8 side that selectively engages with the concave portion 9c. The convex portion 8c, the concave portion 9c provided on the other side of the support portion 9A of the base 9 and the convex portion 8c on the driving portion 8 side selectively fitted thereto are arranged with phases shifted from each other. Yes.

  In the above, in the portable lighting device 1 according to the present embodiment, the light source unit 2 including the LED 6 and the battery 4 is held so as to be able to rotate 360 ° around the vertical axis X with respect to the base case 3. Since the battery 4 is housed in the shaft, there is no need to provide a space for the battery 4, the portable lighting device 1 can be downsized, and the light source unit 2 can be attached to the base case 3. Even if it is rotated 360 °, the LED 6, the battery 4, and the like included therein rotate integrally, so that a lead wire (not shown) for supplying power from the battery 4 to the LED 6 is disconnected and the LED 6 is not lit. It does not occur.

  Further, since the claw 9a formed on the base 9 of the light source unit 2 and the engaging grooves 8a, 8b, 8c formed on the circular recess 8A of the base case 8 are formed at an unequal angular pitch in the circumferential direction, the light source unit 2 At any angular position, at least one of the claws 9a and the engaging grooves 8a to 8c are engaged, and the occurrence of a problem that the light source unit 2 falls off the base case 3 is prevented.

  Further, in the present embodiment, the drive unit 8 including the LED 6 is pivotally supported on the base 9 so as to be capable of rotating by 90 ° or more about a horizontal axis Y orthogonal to the vertical axis X, so that the base case 3 is fixed. However, it is possible to irradiate light in any direction from the LED 6 at least within a solid angle range of 180 °.

  In the present embodiment, the click mechanism of the drive unit 8 is configured by a click mechanism including a plurality of concave portions 9c formed on both sides of the support portion 9A on the base 9 side and a convex portion 8c protruding from the drive portion 8 side. A click feeling is given to the rotation (tilting), and the standing angle of the drive unit 8 can be arbitrarily set. In this case, as described above, the concave portion 9c provided on one side of the support portion 9A of the base 9, the convex portion 8c on the drive portion 8 side to be selectively fitted thereto, and the other of the support portion 9A of the base 9 Since the concave portion 9c provided on the side of the driving portion 8 and the convex portion 8c on the side of the driving portion 8 that selectively engages with the concave portion 9c are arranged out of phase with each other, the concave portion provided with the driving portion 8 on each side. Positioning can be performed by finely adjusting the angle at half the pitch of the array pitch of 9c.

  In the above embodiment, three LEDs are used as the light source. However, any other light source such as an incandescent lamp or a fluorescent lamp other than the LED can be used as the light source. is there. In this embodiment, three claws are formed on the light source unit side and three engagement grooves are formed on the base case side. On the contrary, the claws are formed on the base case side, and the light source unit An engagement groove may be formed on the side, and the number thereof is also arbitrary.

  The portable lighting device according to the present invention is used for illumination and the like in addition to general lighting.

DESCRIPTION OF SYMBOLS 1 Portable illuminating device 2 Light source unit 3 Base case 3A Circular recess of base case 3B Base case attachment part 3a-3c Engagement groove of base case 4 Battery 5 Battery case 6 LED (light source)
7 switch 8 drive unit 8A drive unit support unit 8a drive unit recess 8b drive unit side hole 8c drive unit projection 9 base 9A base support unit 9a base claw 9b base side hole 9c base recess 10 11 Electrode 12 Substrate 13 Switch cap 14 Screw 15 Switch terminal 16 Hollow shaft X Vertical shaft (first shaft)
Y Horizontal axis (second axis)

Claims (5)

A battery case that houses a battery, a drive unit that includes a light source and a switch that turns on / off power supply from the battery to the light source, and a light source unit that includes a base that holds the drive unit and the battery case;
A base case for holding the light source unit so as to be able to rotate 360 ° about the first axis arranged in the first direction;
A portable lighting device comprising:   The light source unit is rotatably held with respect to the base case by engaging a plurality of claws protruding on one of the light source unit and the base case with a plurality of engaging grooves formed on the other, and 2. The portable lighting device according to claim 1, wherein the claw and the engaging groove with which the claw is engaged are formed at an irregular angular pitch in the circumferential direction.   The portable lighting device according to claim 1, wherein the driving unit is pivotally supported by the base so as to be rotatable by 90 ° or more about a second axis orthogonal to the first axis.   The portable lighting device according to claim 3, wherein a click mechanism including a plurality of concave and convex portions is provided around a shaft support portion of the drive portion to the base.   The portable illumination device according to claim 4, wherein the uneven portions are provided on both sides of the shaft support portion of the drive unit, and the arrangement phases of the uneven portions provided on each side are shifted from each other.

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