KR20140087939A

KR20140087939A - Table Lamp Apparatus

Info

Publication number: KR20140087939A
Application number: KR1020120158800A
Authority: KR
Inventors: 김영호; 하철권
Original assignee: 계원예술대학교 산학협력단; 김영호; 하철권
Priority date: 2012-12-31
Filing date: 2012-12-31
Publication date: 2014-07-09

Abstract

It is not only durable enough in terms of mechanism but also can improve interior aesthetics through unique design, and it can be used as sleeping light by having illumination control function.
A tablet stand apparatus of the present invention comprises a base having a switch device for adjusting operation, a rail arm having a pair of conductive rails fixed on the lower side of the base, a light emitting device, and at least a pair of magnet pairs And a head unit that can be attached to the rail arm by a pair of magnets and is fed from the rail arm through the pair of magnets. The conductive rail is made of a conductive metal so that power from the base is directly supplied to the head unit through the pair of magnets without a separate lead. It is preferable that two magnet receiving grooves are formed on one upper surface and an outer surface of the head unit so as to correspond to the pair of conductive rails and a plurality of magnets are respectively attached to the magnet receiving grooves.
It becomes possible to reduce the manufacturing cost by reducing the number of parts, and since the use of the hinge becomes unnecessary, it is possible to escape from the formative limitation of the tabletop stand apparatus, and simpler and more various forms of design become possible. The height direction and the illumination direction of the illumination can be arbitrarily adjusted without such hinges or joints.

Description

{Table Lamp Apparatus}

The present invention relates to a lighting device, and more particularly to a non-portable lighting device suitable for use on a table or desk.

A desk lamp (hereinafter referred to as a "desk stand") is a lighting apparatus that is mainly used for a partial illumination by being placed on a table or the like, and allows the user to increase the concentration and protect the eyesight during learning or work. In many cases, a fluorescent lamp or a three-wavelength lamp is used as a light source of the tabletop stand. Recently, an LED stand using a LED as a light source, which realizes high illumination with low power consumption, is also presented.

Conventionally, the desk stand is provided with a link rotatably installed by a hinge so as to be able to control the area irradiated with light. However, in such a conventional tabletop stand, as the use period becomes longer, the tightening force due to the frictional force inside the hinge is weakened, so that each hinge can not support the link or the light head properly, and the tabletop stand It is necessary to dispose of it. That is, the conventional tabletop stand is mechanically durable and inefficient in terms of resource utilization.

In addition, the conventional tabletop stand has a uniform shape and structure with a slight difference in appearance and color or shape only. As a result, despite the fact that the quality of life is important and the interior design is emphasized, the design of all household appliances has been developed day by day. However, the desk stand has not achieved great development in design, It often acts as an inhibiting factor.

In particular, in the home, in order to obtain a low-illuminance light at night when sleeping, a separate sleeping lamp may be provided in addition to a desk stand. And further deteriorate the sophisticated interior aesthetics.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to provide an image forming apparatus capable of not only having sufficient mechanical durability but also improving interior aesthetics through a unique design, And a stand device.

According to an aspect of the present invention, there is provided a tablet stand apparatus including a base having a switch device for adjusting operation, a rail arm having a pair of conductive rails fixed on the lower side of the base, And a head unit that can be attached to the rail arm by at least a pair of magnets and is fed from the rail arm through the pair of magnets.

The base is preferably in the form of a ring.

In one embodiment, the switch device is installed inside the base, and the switching state can be varied by a magnetic force. In this embodiment, the switching actuator may have a spherical shape and a magnet may be provided inside the switching actuator to change the switching state of the switch device in the state of being close to the switch device, and one end And is fixed to the other end of the wire rod so that the movement is limited. The switching device includes two switching electrodes, a metal piece driven by a magnetic force and whose position can be changed to a first position, and a return spring returning the metal piece to a second position when the magnetic force is lowered .

The conductive rail is made of a conductive metal so that electric power from the base is directly supplied to the head unit through the pair of magnets without a separate lead wire.

It is preferable that two magnet receiving grooves are formed on one upper surface and an outer surface of the head unit so as to correspond to the pair of conductive rails and a plurality of magnets are respectively attached to the magnet receiving grooves.

According to the present invention, since the hinge required for changing the irradiation range in the conventional tabletop stand is unnecessary, the life shortening problem due to the weakening of the tightening force of the hinge is solved and the resource utilization efficiency is improved. In addition, since the number of parts can be reduced, manufacturing costs can be lowered, and the use of the hinge becomes unnecessary, thereby making it possible to deviate from the formative limitations of the tabletop stand apparatus, and simpler and more various forms of design become possible. The height direction and the illumination direction of the illumination can be arbitrarily adjusted without such hinges or joints.

In addition, the tablet stand of the present invention has unique structure and sophisticated form, which not only makes the tablet stand itself distinctive, but also increases the interior aesthetics of the home or office.

In addition, since the desk stand of the present invention has a function of adjusting the illuminance and further a large part of the emitted light can be obscured, it can be used for sleeping or the like, thereby improving the efficiency of indoor space utilization .

Further, since LED is used as a light source, generation of harmful electromagnetic waves can be minimized, eye fatigue can be minimized, user's eye fatigue can be lowered, power consumption can be reduced, and energy saving can be achieved.

Power is directly supplied to the head unit through the body of the rail arm that supports the head unit, and no separate wire is used, so that it is possible to realize a neatly designed product.

In addition, since on / off and illuminance adjustment are performed by adjusting the position of the switch balls and / or the yarn, it is possible to stimulate the fun and emotional aspects, and it is also possible to satisfy the movement and the fun and the emotional aspect of the head unit .

Hereinafter, preferred embodiments of the present invention will be described more specifically with reference to the accompanying drawings. In the figure,
1 is a perspective view of a tablet stand apparatus according to an embodiment of the present invention;
Figure 2 is a partially exploded perspective view of the base and rail arm assembly;
FIG. 3A is a perspective view of the head unit as seen from the side upper side; FIG.
FIG. 3B is a perspective view of the head unit as viewed from the lower side; FIG.
4A is a cross-sectional view showing an embodiment of the fastening structure of the upper frame and the lamp cover in the head unit;
4B is a cross-sectional view showing another embodiment of the fastening structure of the upper frame and the lamp cover in the head unit;
5 is a base plan view for explaining the operation of the switch device;
FIG. 6 is a sectional view taken along the line AA of FIG. 5; FIG.
7 is a block diagram showing an example of the electrical configuration of the tablet stand apparatus of the present invention;
Figures 8A-8C illustrate locations where the head unit is attached to the rail arm; And
9A to 12C are photographs of actual products of the tablet stand apparatus according to the present invention.

Referring to FIG. 1, a tablet stand apparatus according to a preferred embodiment of the present invention includes a base 100, a rail arm 200 extending upward from the base 100, And a head unit 300 which can be attached and detached.

The base 100 has a plurality of switches for on / off inside thereof and a dimming circuit for controlling the illumination output. The base 100 supports the lower end of the rail arm 200, 300). In one embodiment, the base 100 is annular and has a rectangular cross-section.

The rail arm 200 serves as a conductor that not only supports the head unit 300 but also transmits power supplied from the base 100 to the head unit 300 as a part constituting the vertical skeleton of the tablet stand apparatus .

The head unit 300 can be attached to the rail arm 200 and has a light source to irradiate the light from the light source downward and downward. In the present invention, the direction of the head unit 300 and the portion of the rail arm 200 to which the head unit 300 is attached can be arbitrarily changed by the user. In one embodiment, the head unit 300 is annular, has a rectangular cross-section, and has approximately the same height as the base 100.

On the other hand, in the inner space of the base 100, a switch ball 402 constituting a part of a switch device for ON / OFF and dimming control is provided via a wire material such as a seal 404. One end of the chamber 404 is fixed to the inner peripheral surface of the base 100 and the other end is coupled to the switch ball 402.

Referring to FIG. 2, the base 100 includes an upper frame 110 having a substantially 'D' -shaped cross-sectional structure and an open bottom, a weight 120 And a bottom plate 130 for closing the opened lower side of the upper frame 110. Although not shown in the drawing, a switch for ON / OFF and a dimming circuit for controlling the illumination output are additionally provided in the base 100, and a structure for closely supporting the lower end of the rail arm 200 Respectively. In one embodiment, the upper frame 110 and the bottom plate 130 are formed of coated non-magnetic metal or synthetic resin, and the weight 120 may be made of brass or other non-magnetic metal material.

A plurality of protrusions 112 are formed on the inner upper surface of the upper frame 110 so as to protrude downward. A female thread is formed upwardly in the center of the lower end of each protrusion 112. The rear end of the upper frame 110 is preferably formed with a cutout 114 so as to receive the lower side of the rail arm 200.

The weight 120 is circularly shaped so as to be inserted into the upper frame 110, and in a preferred embodiment, two weight pieces 120 are provided. However, in a modified embodiment, the weight 120 may be integrally formed in a circular shape. A plurality of through holes 122 are vertically formed in the weight 120 so as to allow the protrusions 112 of the upper frame 110 to pass therethrough.

The bottom plate 130 is formed of an annular plate and has a plurality of screw holes 132 corresponding to the protrusions 112 of the upper frame 110. The screw holes 140 are formed in the upper frame 110 . Although it is not shown in the drawings, it is preferable that a plurality of protrusions are formed on the bottom surface of the bottom plate 130 so that the tablet stand apparatus does not slip during use.

The rail arm 200 includes a rail part 202 for feeding the head unit 300 while feeding the head unit 300 and a fastening part 204a provided at the lower end of the rail part 202 and connected to the base 100 , And 204b.

The rail portion 202 is provided in a pair so as to increase the support rigidity of the head unit 300 and effectively provide electrical connection to the positive and negative terminals in feeding the head unit 300. [ The rail portion 202 is curved as a whole when viewed from its side. The direction of light emitted from the head unit 300 can be changed in accordance with the position where the head unit 300 is installed, and also the curvature of the head unit 300 can be changed .

On the other hand, the upper ends of the pair of rails constituting the rail portion 202 are bent inward and attached to form an arc. At this time, in order to prevent an electrical short-circuit due to the direct contact of the upper ends of the respective rails, the upper end of each rail is attached by an adhesive having excellent insulation property or is attached with a separate insulating material inserted therein.

In one embodiment, the fastening portion 202 of the rail arm 200 is formed by bending the lower side of the rail portion 202 forward, and then bending the rail portion 200 backward. However, in another embodiment, it may be attached to the lower end of the rail portion 202 by welding.

In the preferred embodiment, the rail arm 200, particularly the rail portion 202, is comprised of a metal wire of rectangular cross section. However, the cross section of the rail portion 202 is not limited thereto, and may have a circular cross section, a triangle or other polygonal cross sectional structure. Regardless of the cross-sectional structure of the rail portion 202, the front to upper bottom portions contacting with the head unit 300 are provided with a flat surface so that the head unit 300 can be attached by a magnet to maintain a sufficient adhesion state .

Since the rail arm 200, particularly the rail portion 202, can be directly exposed to the outside in a metallic state, since the magnitude of current required for driving LTD is extremely small, even if a part of current is exposed, Because. However, it is also possible to prevent leakage of electric current through coating or other treatment with respect to a part of the rail portion 202. This coating treatment can be applied to other parts, for example, except for a part that can be in direct contact with the head unit 300. [

3A and 3B, the head unit 300 includes an upper frame 310 that defines an upper surface and an outer surface and an upper surface of the inner surface, and a lamp cover 330 that defines a bottom surface and an inner bottom surface .

The upper frame 310 and the lamp cover 330 are preferably made of a material that is not damaged even when the head unit 300 accidentally falls. In one embodiment, the upper frame 310 is made of coated metal or synthetic resin, and the lamp cover 330 is made of translucent silicone resin for anti-glare. However, it goes without saying that the lamp cover 330 may be made of transparent or translucent acrylic or other synthetic resin.

In the upper frame 310, an LED substrate (not shown) in which a plurality of LEDs 340 are arranged in a circular shape is installed. Here, LEDs of the same color may be used as the LEDs 340, but the multi-color LEDs such as a white LED and a yellow LED may be arranged in a predetermined pattern according to a desired optical spectrum. Also, the LED substrate may be provided with a heat sink for efficiently emitting heat generated from the LED.

On the other hand, two magnet receiving grooves 312a and 312b are formed on the rear upper surface and the outer side surface of the upper frame 310 so as to be inclined toward the outside. A plurality of magnets 320a, 320a and 320c which can be attached to the rail arm 200 are attached to the magnet accommodating grooves 312a and a plurality of magnets 322a, 322b and 322c are provided in the magnet accommodating grooves 312b. Respectively. Here, the two magnets 320a and 322a function as a pair, the magnets 320b and 322b also function as a pair, and the magnets 320c and 322c also function as a pair.

Each of the pair of magnets 320a-322a, 320b-322b and 320c-322c acts as an electrode so that not only the electric power supplied through the rail arm 200 is supplied to the head unit 300, To be attached to the arm (200). At this time, the installation angle of the head unit 300 is changed depending on which part of the rail arm 200 is attached to which magnet pair. Here, a pair of magnets may be attached to the rail arm 200, but two pairs of adjacent magnets may be attached to the rail arm 200.

4A shows an embodiment of the fastening structure of the upper frame 310 and the lamp cover 330 in the head unit 300. FIG. An outer end of the bottom surface 332 of the lamp cover 330 is coupled to the lower end of the outer surface 314 of the upper frame 310 by a hooking jaw 318, 318, respectively.

4B shows another embodiment of the fastening structure of the upper frame 310 and the lamp cover 330 in the head unit 300. FIG. A hooking protrusion 319 is formed at the lower end of the inner surface 316 of the upper frame 310 so as to be bent outward and is bent inward at the upper end of the inner surface 334 of the lamp cover 330 The latching jaw 336 is formed so that the latching jaw 336 of the lamp cover 330 can be placed on the latching jaw 319 of the upper frame 310. [

As mentioned above, the tablet stand apparatus of the present invention is controlled on / off and dimming by the switch apparatus including the switch ball 402. [ 5 shows the upper surface of the base 110 together with the switch ball 402 in order to explain the operation of the switch device.

The off-state, the low-illuminated state, the intermediate illuminated state, and the high-illuminated state are respectively provided on the upper surface of the base 100 opposite to the inner peripheral surface of the base 100 to which the seal 404 connected to the switch ball 402 is fixed A plurality of markers 410 to 416 are displayed. In the base 100, unit switches each having a metal piece are provided below the respective markers 410 to 416. On the other hand, a magnet is embedded in the switch ball 402. Accordingly, the switch ball 402 stably remains in the inside of each unit switch, that is, only at the position of each marker 410 to 416.

6 shows the structure of each unit switch. Each unit switch includes a metal piece 424 for selectively connecting the first and second electrodes 420 and 422 to the first and second electrodes 420 and 422 and the metal piece 424 and the base 100 (Not shown).

When the user pushes the switch ball 402 or the seal 404 and places the switch ball 402 near the metal piece 424, the magnet embedded in the switch ball 402 pulls the metal piece 424, The first and second electrodes 420 and 422 are electrically connected by the metal piece 424. When the user pushes the switch ball 402 or the seal 404 again to move the switch ball 402 to another switching position, the metal piece 424 is compressed by the return spring 426 and the first and second electrodes 420 , 422 are released.

Thus, in the tablet stand apparatus of the present invention, the switch apparatus is operated by the switch ball 402 and the seal 404. And, when the switch ball 402 is near four switching positions indicated by the markers 410 to 416, the switch ball 402 is suspended from the room 404, floating in the air, And the seal 404 is maintained in a taut state.

7 shows an example of the electrical configuration of the tablet stand apparatus of the present invention.

The tablet stand apparatus includes a LED driving circuit 500, first to fourth switches 510 and 520 to 524, and a plurality of LEDs 340.

The LED driving circuit 500 receives DC power from an adapter (not shown) provided outside or inside the apparatus, adjusts the power level, and outputs the DC power. The first switch 510 is provided between the output terminal of the LED driving circuit 500 and the first node N1 and maintains the ON state in the steady state. When the switch ball 402 is positioned near the marker 410 It is changed to the OFF state. Such a switch can be easily implemented by a person skilled in the art from the unit switch configuration shown in FIG. 6, so that a detailed description thereof will be omitted.

The second switch 520 is provided via the resistor R1 between the first node N1 and the second node N2 and is turned on when the switch ball 402 is located near the marker 412. [ The third switch 522 is installed via the resistor R2 between the first node N1 and the second node N2 and is turned on only when the switch ball 402 is located near the marker 414 . The fourth switch 524 is provided via the resistor R3 between the first node N1 and the second node N2 and is turned on only when the switch ball 402 is positioned near the marker 416 . Here, it is assumed that R1> R2> R3.

The second node N2 may be connected to the LED 340 via the rail arm 200 and the magnet pair 320a-322a, 320b-322b, 320c-322c.

Accordingly, when the switch ball 402 is positioned near the marker 410, the first switch 510 is turned off and the current supply to the LED 340 is completely cut off.

When the switch ball 402 is positioned near the marker 412, the first switch 510 is turned on and the second switch 520 is turned on so that a small current is supplied to the LED 340, An illumination light is generated. At this time, the third and fourth switches 522 and 524 are maintained in a turned off state.

When the switch ball 402 is positioned near the marker 414, the first switch 510 is turned on and the third switch 522 is turned on so that a medium-sized current is supplied to the LED 340, An illumination light is generated. At this time, the second and fourth switches 520 and 524 are maintained in a turned off state.

When the switch ball 402 is positioned near the marker 416, the first switch 510 is turned on, the fourth switch 524 is turned on, and a large current is supplied to the LED 340, . At this time, the second and third switches 520 and 522 maintain the turn-off state.

The tablet stand apparatus of the present invention is used as follows.

The user can operate the tabletop stand apparatus by attaching the head unit 300 to an appropriate position of the rail arm 200 and supplying electricity to the tabletop stand apparatus.

8A, when the head unit 300 is attached near the upper end of the rail arm 200, illumination light can be irradiated over a relatively large area. In this state, the user may change the illuminance by changing the position of the switch ball 402. [

On the other hand, when the head unit 300 is attached to the central portion of the rail arm 200 as shown in FIG. 8B, illumination light is irradiated to a relatively narrow region. Even in this state, the user can change the illuminance by changing the position of the switch ball 402.

On the other hand, the user may mount the head unit 300 on the base 100, that is, in the lowest position in the rail arm 200. In this case, the illumination light generated by the LED 340 is not emitted through the bottom surface 332 of the lamp cover 330 of the head unit 300, but is emitted only through the inner surface 334 of the lamp cover 330 Accordingly, not only a specific area on the table is illuminated, but the whole illumination is illuminated with a low illuminance. Particularly, when the output is lowered by the switch ball 402, only a very small amount of light leaks out so that the indoor illuminance is greatly lowered so that it can be used for sleeping.

8A to 8C show only the case where the head unit 300 is attached to three places on the rail arm 200, the position where the head unit 300 is attached can be arbitrarily changed. That is, the user can remove the head unit 300 and attach it to the rail arm 200 at a desired position. Accordingly, the irradiation range of the illumination light can be arbitrarily changed. Since the center of gravity of the tabletop stand apparatus is maintained at the lower portion by the weight 120 inserted into the base 100 in the process of detaching or attaching the head unit 300, The possibility of the device falling or shaking is very low.

9 to 12C are photographs of actual products of the tabletop stand apparatus according to the present invention.

9 shows a tablet stand apparatus in a standby state in which no power is supplied.

10A to 10C show illumination light emission states when the head unit 300 is attached near the upper end of the rail arm 200, as shown in FIG. 8A. Specifically, FIGS. 10A to 10C show the high illuminance, Respectively.

11A to 11C show illumination light emission states when the head unit 300 is attached to an intermediate portion of the rail arm 200 as shown in FIG. 8B. Specifically, FIGS. 11A to 11C show the state of emission of highlights, Respectively.

12A to 12C show illumination light emission states at a position where the head unit 300 is placed on the base 100 as shown in FIG. 8C. Specifically, FIGS. 12A to 12C are diagrams showing the state of emission of light of high illuminance, medium illuminance, Respectively.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but on the contrary may be embodied in many forms without departing from the spirit or essential characteristics thereof.

For example, although the shapes of the rail arm and the head unit have been exemplarily described above, since the movement and fixation of the head unit are performed using the magnetic force, the shapes of the rail arms and the head unit are not limited to the above description, It is possible.

Therefore, it should be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: Base
110: upper frame, 112: projection, 114: incision
120: weight, 122: through hole
130: bottom plate, 140: screw
200: rail arm, 202: rail part, 204a, 204b; The fastening portion
300: head unit, 310: upper frame, 330: lamp cover, 340: LED
312a, 312b: a magnet storage groove,
320a, 320a, 320c, 322a, 322b, 322c: magnet
318, 319, 336:
402: switch ball, 404: room
410 to 416: Marker
420, 422: switch electrode, 424: metal piece, 426: return spring

Claims

A base provided with a switch device for operation adjustment;
A rail arm fixed to a lower side of the base and having a pair of conductive rails; And
A head unit having a light emitting device, which can be attached to the rail arm by at least a pair of magnets, and is fed from the rail arm through the pair of magnets;
And a display panel.

The method according to claim 1,
Wherein the base is in the form of a ring.

The method of claim 2,
The switching device is installed inside the base, the switching state can be varied by the magnetic force,
The tablet stand apparatus
A switching drive body which is spherical and has a magnet inside thereof and is capable of changing a switching state of the switching device in a state of being close to the switching device; And
A wire having one end fixed to one point on the inner circumferential surface of the base and the other end fixed to the switching actuator;
Further comprising:

4. The apparatus according to claim 3,
Two switching electrodes,
A metal piece which is driven by a magnetic force and whose position can be changed to the first position,
A return spring for restoring the metal piece to a second position when the magnetic force is lowered;
And the switching electrode can be selectively connected by the metal piece and the return spring.

The tablet stand apparatus according to claim 1, wherein the conductive rail is made of a conductive metal, and supplies power from the base directly to the head unit through the pair of magnets without a separate conductor.

The head unit according to claim 1, wherein two magnet receiving grooves are formed on one upper surface and an outer surface of the head unit so as to correspond to the pair of conductive rails,
And a plurality of magnets are respectively attached to the magnet receiving grooves.