JP2011113751A - Desk lamp - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a desk lamp capable of easily changing its illumination range without deteriorating the design of the desk lamp by easily changing the mount position of a lamp fitting while maintaining the shape of a stand. <P>SOLUTION: The desk lamp 10 includes a lamp fitting 11 irradiating light, and a stand 12 having a mount area P to mount the lamp fitting 11 at a predetermined position. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a desk lamp, and more particularly to a desk lamp that can change the position of a lamp as a light source.

  Conventionally, as shown in FIGS. 9 and 10, the desk lamp 1 includes a lamp 2 and a stand part 3, and the lamp 2 is fixed to a tip part 3 a of the stand part 3. When changing the illumination range in such a desk lamp 1, for example, when illuminating the whole, as shown in FIG. 9A and FIG. 10A, the lamp unit 2 is raised by extending or tilting the stand part 3. When illuminating the lamp by placing it at a position and partially illuminating it at the time of reading, etc., as shown in FIGS. The lighting range was changed by arranging in the.

  In addition, the first member is applied to the desk lamp with a turning mechanism that can turn about 90 degrees between two positions of a position that is substantially perpendicular to the second member and a position that is substantially parallel to the second member. An arm that can be opened and closed (see, for example, Patent Document 1), or a pair of adjacent cases in which lamps are housed are arranged so as to be openable and closable around a vertical axis. A light-emitting device intended for an interesting and novel design by changing the form of the case (for example, see Patent Document 2) is disclosed.

JP 2003-329028 A JP 2000-090709 A

  However, since the lamp 2 is fixed to the distal end portion 3a of the stand portion 3 in the table lamp 1 shown in FIGS. 9 and 10, if the illumination range is changed, the form of the stand portion 3 must be changed. However, as a result, the design of the desk lamp 1 as a whole may be impaired. This also applies to the desk lamp of Patent Document 1. Moreover, the light-emitting device of Patent Document 2 is intended to be a light-emitting device with a novel and interesting design mainly for street lamps, and the appearance design will change.

  The present invention has been made in view of the above-described problems, and the object thereof is to make it possible to easily change the mounting position of the lamp while maintaining the shape of the stand part without impairing the design as a desk lamp. Another object of the present invention is to provide a desk lamp that can easily change the illumination range.

  Therefore, the desk lamp of the present invention includes a lamp that constitutes a light source, and a stand portion that has an attachment region in which the lamp can be attached at a predetermined position.

  Moreover, the present invention is characterized in that, in the table lamp, the lamps are separated along the longitudinal direction of the stand part and attached to a plurality of lamp attachment parts provided in the attachment region.

  Moreover, the present invention is characterized in that, in the desk lamp, the lamp can be mounted at an arbitrary position of a lamp mounting portion provided continuously in the mounting area.

  According to the present invention, in the table lamp, the lamp is supplied with electric power through a non-contact power supply device disposed in the attachment region.

  According to the desk lamp of the present invention, since the lamp and the stand portion having a mounting area where the lamp can be mounted at a predetermined position, the lamp mounting position can be mounted without changing the shape of the stand portion. Can be changed within the region. Thereby, the illumination range can be changed without impairing the design of the entire desk lamp.

  In addition, since a plurality of lamp mounting portions that are separated from each other are provided in the mounting area, the position of the lamp can be easily changed simply by reattaching the lamp to the lamp mounting portion. It is possible to change the illumination range without impairing.

  Furthermore, since the lamp mounting portion is provided continuously in the mounting area, the lamp can be mounted at an arbitrary position in the lamp mounting area, and a desired illumination range can be illuminated.

  In addition, since power is supplied to the lamp via a non-contact type power supply device disposed in the attachment area, there is no damage to the cord or wear parts, and it is possible to prevent short circuits and electric shocks and to be maintenance-free. .

The side view of the desk lamp of Embodiment 1 of this invention II-II sectional view in FIG. (A) is a side view of a table lamp when the lamp is attached to a high position and illuminates the whole. Side view of the lamp mounting part of each modification Side view of the desk lamp of Embodiment 2 of the present invention VI-VI sectional view in FIG. Sectional drawing of the desk lamp of Embodiment 3 of this invention Schematic configuration diagram of a non-contact power feeding device Side view of a conventional desk lamp Side view of another conventional desk lamp

  Embodiments of a desk lamp according to the present invention will be described below in detail with reference to the drawings.

(Embodiment 1)
1 is a side view of a table lamp according to Embodiment 1 of the present invention, FIG. 2 is a sectional view taken along the line II-II of FIG. 1, and a table lamp 10 includes a lamp 11 and a stand unit 12. In the lamp 11, for example, an incandescent bulb 14 mounted on a lamp socket 13 is suspended in a lamp shade 16 by a hanging bracket 15. The lamp shade 16 is attached to a predetermined position of the stand portion 12 by a hanging string 17 whose both ends are fixed to the upper frame 18 of the lamp shade 16.

  The stand portion 12 includes a base portion 20, a leg portion 21 extending vertically upward from the base portion 20, and a support column 22 formed continuously from the leg portion 21 and extending obliquely upward while being curved. 23. The support column 23 is formed of, for example, a metal pipe having a circular cross section, and an attachment region P in which a lamp 11 described later can be attached to the suspension portion 22 is set.

  The suspension portion 22 is provided with a plurality of (three in the embodiment shown in FIG. 1) lamp attachment portions 24 (24a, 24b, 24c) that are grooves formed from the upper surface of the metal pipe. The lamp 11 is attached to the stand part 12 by engaging the hanging string 17 with any of the plurality of lamp attaching parts 24. In addition, an elongated hole 26 through which the power cord 25 can be inserted is provided in the lower portion of the suspension portion 22 over the entire attachment region P (see FIG. 2).

  A cord reel 27 capable of winding the power cord 25 is disposed inside the base portion 20, and the power cord 25 led out from the cord reel 27 is routed in the column 23 via the guide roller 28, It is connected to the electrode of the lamp socket 13. A plurality of (two in the embodiment shown in FIG. 1) cord holders 29 that are engaged with the suspension portion 22 are fixed to the power cord 25 arranged in the suspension portion 22. Hold in a state of being accommodated in the suspension 22. Thereby, it is prevented that the power cord 25 hangs down from the long hole 26 below the suspension part 22 and disturbs the design.

  The operation of the present embodiment will be described. The table lamp 10 according to the first embodiment of the present invention is provided in any one of a plurality of lamp mounting portions 24 (24a, 24b, 24c) in which the lamp 11 is provided on the stand portion 12 in order to illuminate a desired illumination range. It is attached. For example, in the case of illuminating the entire wide area, as shown in FIG. 3A, the lamp 11 is arranged at a high position by attaching the hanging strap 17 of the lamp 11 to the lamp attaching part 24a on the distal end side of the suspension part 22. And illuminate a wide area.

  Further, when partially illuminating at the time of reading or the like, as shown in FIG. 3 (b), the hanging strap 17 hung on the lamp mounting part 24a on the distal end side of the suspension part 22 is removed from the lamp mounting part 24a, The illumination range can be easily changed simply by switching to the lamp mounting part 24c on the base side of the suspension part 22 and moving the lamp 11 to a lower position.

  There is a risk that the power cord 25 may be loosened by moving the lamp 11 from the lamp mounting portion 24a on the tip side to the lamp mounting portion 24c on the base side. However, since the surplus power cord 25 is wound around the cord reel 27, The cord 25 is housed neatly in the column 23. On the other hand, when the lamp 11 is moved from the lamp mounting part 24c on the base side to the lamp mounting part 24a on the tip side, the power cord 25 is fed out from the cord reel 27, so that the movement of the lamp 11 is inhibited. Absent.

  As described above, the power cord 25 also moves (extends / contracts) in the column 23 along with the movement of the lamp 11, but the power cord 25 accommodated in the suspension portion 22 is slidably engaged with the suspension portion 22. Since the power cord 25 is secured to and held by the tool 29, the power cord 25 does not hang down from the long hole 26 and is held in the suspension portion 22.

  As described above, according to the table lamp 10 of the present embodiment, the position of the lamp 11 attached to the lamp mounting unit 24 can be changed while maintaining the shape of the stand unit 12. The illumination range can be easily changed without impairing the design properties.

(Modification)
4A, 4 </ b> B, and 4 </ b> C are modifications of the lamp mounting portion, and a pin-shaped or substantially triangular locking piece 30 is provided so as to protrude from the upper surface of the suspension portion 22. . The lamp 11 is attached to an arbitrary position of the suspension portion 22 by locking the hanging strap 17 to any of the locking pieces 30. In addition, if the locking piece 30 is configured to be able to protrude and retract from the suspension portion 22 by a built-in spring or the like, the movement of the lamp 11 is further facilitated.

(Embodiment 2)
Next, a table lamp that is Embodiment 2 of the present invention will be described with reference to FIGS. FIG. 5 is a side view of the desk lamp according to the second embodiment, and FIG. 6 is a sectional view taken along line VI-VI in FIG.

  In the table lamp 10 according to the second embodiment, the lamp attachment portion is set continuously over the entire attachment region P. Therefore, the lamp 11 is different from the table lamp of Embodiment 1 in that the lamp 11 can be attached to an arbitrary position in the attachment region P. Other configurations are the same as those of the desk lamp of the first embodiment. In addition, the same code | symbol was attached | subjected to the same part as the desk lamp of Embodiment 1. FIG.

  As shown in FIG.5 and FIG.6, the suspension part 22 of the support | pillar 23 is formed in the cross-sectional substantially inverted U shape by which the downward direction was open | released with insulating materials, such as resin. In the suspension part 22, a pair of electrode plates 41 </ b> A and 41 </ b> B is accommodated in an electrode plate accommodation groove 42 formed along the longitudinal direction of the suspension part 22. The pair of electrode plates 41A and 41B are connected to the power cord 25, respectively. In addition, a pair of engaging grooves 43 </ b> A and 43 </ b> B formed in the horizontal direction on the left and right side surfaces and a jetty 44 formed in the lower surface of the ceiling portion are continuous along the longitudinal direction of the suspension portion 22 inside the suspension portion 22. Is formed.

  The lamp holder 45 is a block-like member formed of an insulating material such as resin, and is slidably fitted to the suspension portion 22. A pair of locking projections 46A and 46B are formed in the lamp holder 45 along the longitudinal direction, and are engaged with the pair of engaging grooves 43A and 43B of the suspension part 22, respectively. Thus, the lamp holder 45 is slidable along the suspension portion 22 with the locking projections 46A and 46B being guided by the engagement grooves 43A and 43B. Further, a U-shaped groove 47 is formed on the upper surface of the lamp holder 45 along the longitudinal direction, and the jetty 44 of the suspension portion 22 is fitted. A leaf spring 48 is mounted between the jetty 44 of the suspension part 22 and the U-shaped groove 47 of the lamp holder 45, and applies sliding resistance between the lamp holder 45 and the suspension part 22.

  Further, the lamp holder 45 has a T-shaped hole formed in a substantially central portion, which includes a horizontal hole 49 provided corresponding to the pair of electrode plates 41A and 41B and a cord hole 50 penetrating downward from the horizontal hole 49. Has been. A pair of electrode plates 51A and 51B are arranged in the horizontal hole 49, and the respective electrode plates 51A and 51B are slidably contacted with the electrode plates 41A and 41B by the coil springs 52A and 52B. It is electrically connected to 53B. An electrical cord 55 having one end connected to the lamp socket 13 to which the incandescent bulb 14 is attached is connected to the pair of electrode plates 51A and 51B.

  Therefore, the electrode plates 41A and 41B and the sliding contacts 53A and 53B are always in contact regardless of the mounting position of the lamp holder 45. Therefore, even if the lamp holder 45 is moved to an arbitrary position in the mounting area P, Power is always supplied to the lamp socket 13 via the electrode plates 41A and 41B, the sliding contacts 53A and 53B, the electrode plates 51A and 51B, and the electric cord 55.

  According to the table lamp 10 of the present embodiment, the lamp holder 45 can be moved along the suspension portion 22 and can be disposed at any continuous position in the attachment region P. Without changing the above, it is possible to efficiently illuminate a desired illumination range while maintaining the design of the desk lamp 10 as a whole.

(Embodiment 3)
Next, a table lamp that is Embodiment 3 of the present invention will be described with reference to FIGS. FIG. 7 is a cross-sectional view of a main part of the table lamp according to Embodiment 3, and FIG. 8 is a schematic configuration diagram of the non-contact power feeding device.

  As shown in FIG. 7, the table lamp 10 according to the third embodiment is different from the table lamp according to the second embodiment in that power is supplied to the lamp socket 13 (incandescent light bulb 14) by the non-contact power feeding device 60. Unlike the other parts, which are the same as those of the table lamp according to the second embodiment of the present invention, the same parts are denoted by the same or corresponding reference numerals, and the description thereof will be simplified or omitted.

  As shown in FIG. 7, in the table lamp 10 according to the present embodiment, the power feeding side core 61 formed by laminating electromagnetic steel plates is disposed at a plurality of locations that serve as lamp attachment portions of the suspension portion 22. A power supply side coil 62 connected to the power cord 25 is wound around the power supply side core 61. On the other hand, in the lamp holder 45 in which the locking projections 46A and 46B are engaged with the engaging grooves 43A and 43B and slidably fitted to the suspension part 22, a power receiving side core 63 formed by laminating electromagnetic steel plates is provided. Contained. The power receiving side coil 64 wound around the power receiving side core 63 is connected to the other end of the electric cord 55 having one end connected to the lamp socket 13.

  When the lamp holder 45 that is slidably fitted to the suspension part 22 is attached to the lamp attachment part (arrangement position of the power supply side core 61) of the suspension part 22, the power supply side core 61 and the power reception side core 63 are In this way, a non-contact type power feeding device 60 is configured, and power is supplied from the power feeding side coil 62 to the power receiving side coil 64 in a non-contact manner. The

  The non-contact type power feeding device 60 transmits power from the power feeding side coil 62 to the power receiving side coil 64 by an electromagnetic dielectric action, and is configured as shown in FIG. 8, for example. That is, an AC power supply 67 is connected to the power supply coil 62 wound around the power supply core 61 via a coil drive circuit 65 and a rectifier circuit 66 that are power supply circuits. The incandescent light bulb 14 that is a load is connected to the power receiving side coil 64 wound around the power receiving side core 63 via a smoothing circuit 68.

  The AC voltage input from the AC power supply 67 is converted to DC by the rectifier circuit 66 and applied as a high-frequency square wave voltage from the coil drive circuit 65 to the power supply side coil 62. The magnetic flux generated in the power supply side coil 62 is linked to the power reception side coil 64 through the gap C, and generates a high frequency voltage in the power reception side coil 64. The high frequency voltage generated in the power receiving side coil 64 is converted into direct current by the smoothing circuit 68 and supplied to the incandescent bulb 14.

  As described above, according to the table lamp 10 of the present embodiment, power is supplied to the lamp 11 via the non-contact power supply device 60 disposed in the attachment region P, so that the power cord 25 is damaged. Since there is no fear and there are no wear parts, short circuit and electric shock can be prevented and maintenance can be made free.

  In the above-described embodiment, the plurality of power supply side cores 61 are individually disposed in the lamp mounting portion of the suspension portion 22 and are supplied with power when the lamp holder 45 is located at a position corresponding to the lamp mounting portion. However, it is also possible to supply the lamp 11 at an arbitrary continuous position in the attachment region P.

  Note that the present invention is not limited to the above-described embodiments and modifications, and modifications and improvements can be made as appropriate. For example, in the above embodiment, the lamp is an incandescent lamp, but the lamp is not limited to this, and a fluorescent lamp, LED illumination, organic electroluminescence (organic EL) capable of surface emission, and the like are also applicable.

DESCRIPTION OF SYMBOLS 1, 10 Desk lamp 11 Lamp 12 Stand part 24 (24a, 24b, 24c) Lamp attachment part 60 Non-contact-type electric power feeder P attachment area

Claims (4)

A lamp that emits light,
A stand portion having a mounting area where the lamp can be mounted at a predetermined position;
A desk lamp equipped with. The desk lamp according to claim 1,
The lamp is a desk lamp that is spaced along the longitudinal direction of the stand portion and is attached to a plurality of lamp attachment portions provided in the attachment region. The desk lamp according to claim 1,
The lamp is a desk lamp that can be mounted at an arbitrary position of a lamp mounting portion provided continuously in the mounting area. The desk lamp according to any one of claims 1 to 3,
The lamp is a desk lamp to which electric power is supplied through a non-contact power supply device disposed in the attachment area.

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