JP2009146638A - Lighting apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting apparatus having a structure that never disturbs rotary operation for changing a direction of illumination. <P>SOLUTION: A lighting apparatus 10 includes: a lamp fitting 11 having a light source 11a and a control section for controlling the light source; and an arm 15 having a cap part 12 for supporting the lamp fitting, a flexible support post part 13 with one end connected to the cap part, and a fixing part 14 that is connected to the other end of the support post part and is supported in a rotatable manner relative to a part mounted, wherein the cap part, the support post part, and the fixing part are formed in approximately linear shape. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a luminaire that can freely adjust the height, position, and the like of illumination.

  Conventionally, this type of lighting apparatus is used as a bed lamp in a hospital room or a medical treatment room in a medical welfare facility, and as a desk lamp such as a study desk or a work desk.

  For example, as shown in Patent Document 1, the configuration of these lighting fixtures includes an upper column having a lamp connected to the tip, and a lower unit in which a fixing rod fixed to a fixed part such as a bed is rotatably connected to a lower end. The two columns and the upper and lower columns are connected by joints, and the height and direction of illumination can be freely adjusted by the bending operation and the rotation operation of the fixed rod.

Furthermore, in Patent Document 2, a lamp that uses a light-emitting diode with low power consumption as a light source is supported on an arm that can rotate 360 ° so that the direction of light irradiation can be selected, and the arm is formed of a flexible tube. It is configured so that the light irradiation direction can be finely adjusted.
JP 2000-138008 A JP 2004-146315 A

  However, what is shown in Patent Document 1 is that each connecting portion, that is, the lamp and the upper column, the upper and lower columns, and the lower column and the fixing rod are connected to each other with a joint portion, and the structure is In addition to the complexity, a joint portion for connecting the lower support column and the fixed rod protrudes laterally from the support column (see FIG. 1 of Patent Document 1), and the support column rotates around the fixed rod. At this time, since the joints rotate together, it may be difficult to rotate by hitting equipment or objects around the bed. For this reason, the installation location must be changed, which causes a problem that illumination in a desired direction is difficult.

  This is not limited to bed lamps, and even desk lamps used for study desks, work desks, etc., may hit tabletop equipment or objects, and similarly, the installation location cannot be freely selected, making it difficult to achieve the desired lighting. There's a problem.

  For this reason, as shown in Patent Document 2, a method is adopted in which a support column portion that performs a bending operation is formed of a flexible tube, and a joint portion of a connection portion is eliminated. However, as shown in Patent Document 2, since the lower end of the flexible tube and the main body are fixed without rotating, only the function of finely adjusting the direction of light can be achieved, and a separate 360 ° rotation is performed. The structure becomes complicated.

  In order to solve these problems, a bed lamp having a configuration shown in FIG. 6 has recently been proposed. That is, in FIG. 6 (a), a power source part 2 of a light emitting diode is provided at the lower end portion of the flexible tube 1 having a lamp attached to the tip, and a fixing rod 3 is provided at the lower end of the power source unit. It supports so that it can rotate to the bracket 4 installed in the wall surface. However, even in this configuration, the case portion housing the power supply unit 2 is larger than the diameter of the flexible tube 1 in order to control the lighting of the light emitting diodes, and thus protrudes to the side, hindering the rotation operation.

  Further, as shown in FIG. 6B, the power supply unit 2 of the light emitting diode is housed in the lamp 5, and a fixing rod 3 'is integrally formed in parallel with the side of the lower end of the flexible tube 1, The fixing rod 3 'is supported and configured to be able to rotate on a bracket 4 installed on a wall surface in the vicinity of the bed. However, the lower end portion of the flexible tube 1 protrudes to the side of the fixed rod 3 ', which hinders the rotating operation. In particular, when the distance b between the fixing bar 3 'and the tip of the bracket 4 is large, there is a problem that the fixing bar cannot be inserted into the bracket and versatility is lowered. Further, since the electric wire 6 led out from the lamp 4 is drawn out from the lower end portion of the flexible tube 1, the drawn out electric wire 6 protrudes to the side of the bracket 4 and hinders the rotating operation.

  For this reason, in this type of luminaire, how to realize a luminaire that does not hinder the rotation operation for changing the direction of illumination and can freely select the installation location in a hospital room etc. Has become an important issue.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a lighting fixture having a configuration that does not hinder a rotating operation for changing the direction of illumination.

  In order to achieve the above object, a lighting apparatus according to a first aspect of the present invention includes: a lamp provided with a light source and a control unit that controls the light source; a base portion that supports the lamp; and one end portion connected to the base portion A bendable strut portion, connected to the other end portion of the strut portion, and having a fixing portion that is rotatably supported with respect to the installation portion, so that the base portion, the strut portion, and the fixing portion are substantially linear. And formed arms.

  According to the present invention, an illuminating device that does not hinder a rotation operation for changing the direction of illumination is configured by an arm formed such that the base portion, the support column portion, and the fixing portion are substantially linear.

  In the present invention, the light source of the lamp is preferably composed of a light emitting diode with low power consumption and relatively strong directivity of radiated light. However, incandescent lamps such as krypton bulbs and halogen bulbs, bulb-type fluorescent lamps and compact fluorescent lamps are preferred. It may be a surface light source composed of a discharge lamp such as a lamp, or an EL element. In order to obtain the target illumination, the light source may be provided with a lens, a reflecting mirror, a light shielding body, and the like so as to perform spot light distribution.

  In addition, the control unit for controlling the light source is an electronic ballast for controlling the lighting when the light source is a light emitting diode, even if it is a power source unit constituting a power circuit of the light emitting diode. In the case of an incandescent light bulb, it may be a switch box or the like that constitutes a power switch that is turned on and off, and further a dimming control unit for dimming these light sources. Good.

  The base portion and the fixing portion of the arm are preferably made of a metal such as brass, but may be made of a strong synthetic resin. In addition, the bendable support column is preferably formed of a flexible tube made of metal or synthetic resin. However, even if it is formed of a plurality of arms that can be bent, it is configured by combining the arm and the flexible tube. It is also possible to allow the struts of all configurations that can be bent. Further, the base part, the column part, and the fixing part may be supported so as to be detachable by means such as screw connection, or may be fixed by means such as caulking, welding, or adhesion.

  The base part of the arm, the column part, and the fixed part are formed so as to be substantially linear, but even if they are formed so as to form a straight line, they are formed so as to draw a substantially arc. May be. Moreover, the linear shape which changes from a straight line to a substantially circular arc, or the curved shape which has a some bending part may be sufficient like the flexible tube which can be bent freely. In addition, it is preferable that the base part, the column part, and the fixed part have substantially the same thickness and are formed in a linear shape. In short, what is necessary is just to form it substantially linearly in the range which does not prevent rotation, when turning an arm centering | focusing on a fixing | fixed part.

  It is preferable that the arm base portion, the column portion, and the fixing portion have a hollow portion through which the electric wire is inserted and the electric wire is housed in the arm, but here, the electric wire is not made hollow. You may comprise along the outer side of an arm.

  Supporting the installation part so as to be pivotable means, for example, that the fixed part of the arm may be rotatably supported via a bracket fixed to the installation part. It is sufficient if the structure rotates. When supporting the fixed part via a bracket, it is possible to form a vertical hole on the bracket side and insert a fixed rod that forms a rod shape of the arm so that it can be freely rotated 360 °, or specified You may enable it to rotate within the range of the angle. Moreover, even if it supports in the state which can attach / detach the fixing | fixed part so that attachment or detachment is possible, you may make it support in the state which cannot attach or detach. Conversely, a fixing rod may be formed on the bracket side, a vertical hole may be formed in the fixing portion of the arm, and the vertical hole of the arm may be inserted into the fixing rod of the bracket.

  The portion to be installed is a wall surface or the like near the head of the bed or a table board such as a desk, but includes all places where a lighting fixture can be attached. When the fixed part is supported via the bracket, the bracket is inserted into the desk plate, which is the installation part, even if it is directly attached to the wall surface near the bed head, which is the installation part. You may attach so that attachment or detachment is possible. The material is preferably made of metal such as brass or aluminum die cast, but may be made of strong synthetic resin.

  According to a second aspect of the present invention, in the luminaire according to the first aspect, the support column portion of the arm is formed of a flexible tube.

  According to a third aspect of the present invention, in the lighting apparatus according to the first or second aspect, the base portion, the column portion, and the fixing portion of the arm are configured to have a hollow portion through which the electric wire is inserted, and the side surface of the fixing portion. An insertion hole for communicating with the hollow portion and for inserting the electric wire is formed.

  The insertion hole may be configured so as to cover with a bush and insert an electric wire from the hole of the bush to improve the appearance near the insertion hole.

  According to the first aspect of the present invention, when the arm is rotated around the fixing portion by the arm formed so that the base portion, the support column portion, and the fixing portion are substantially linear, the rotation is prevented. Therefore, it is possible to provide a lighting fixture that does not hinder the rotation operation for changing the direction of lighting.

  According to invention of Claim 2, since the support | pillar part of the arm was comprised with the flexible tube, it can provide the lighting fixture which can change the direction of illumination freely with a simple structure.

  According to the invention of claim 3, the base portion, the support column portion and the fixing portion of the arm are configured to have a hollow portion through which the electric wire is inserted, and are connected to the hollow portion on the side surface of the fixing portion for inserting the electric wire. Since the insertion hole is formed, the electric wire can be accommodated in the arm, and the amount of the electric wire protruding to the side is reduced, thereby preventing the rotation of the arm from being hindered. Furthermore, since an electric wire can be accommodated in an arm, it is possible to provide a lighting apparatus that is safe and has an excellent appearance and design.

  Hereinafter, embodiments of the lighting apparatus according to the present invention will be described.

  The lighting apparatus of the present embodiment is configured as a bed lamp for installation on a hospital bed, and will be described below with reference to FIGS.

  The luminaire 10 includes a lamp 11 and an arm 15 having a base portion 12, a support column portion 13, and a fixing portion 14, and the arm fixing portion 14 is supported by a bracket 16 so as to be rotatable with respect to the installation portion A. The

  The lamp 11 includes a main body case 11c that houses a light source 11a and a control unit 11b that controls the light source. The light source 11a is a light emitting diode (hereinafter referred to as “LED”), and in the present embodiment, is composed of five white LEDs arranged concentrically. The LED 11a is configured to perform spot light distribution by a lens body and a reflector. The control part 11b is comprised with the power supply circuit for carrying out lighting control of LED11a.

  The main body case 11c is made of a synthetic resin or the like and has a substantially cylindrical shape with one end open. The main body case 11c houses the control unit 11b inside, and the LED 11a that forms the light source is disposed in the open part. In addition, a support portion 11d including a female screw portion for supporting the lamp to a base portion 12 of the arm 15 described later is formed at the other end portion that is closed. The open part of the main body case may be closed with a transparent plate made of transparent glass or synthetic resin.

  As shown in FIG. 2, the arm 15 includes a base part 12 that supports the lamp 11, a bendable support part 13 having one end connected to the base part, and a fixing part 14 connected to the other end of the support part. Become. The base portion 12 is made of brass and is formed in a hollow short pipe shape with a circular cross section, and integrally forms a fixing portion 12a for inserting and fixing one end portion of a post portion 13 to be described later at one end portion. The other end portion is integrally formed with a hollow male screw portion 12b that is screwed and fixed to a support portion 11d that is a female screw portion of the lamp 11.

  The support column 13 is made of a flexible tube having a circular cross section made of metal and having one end inserted into and fixed to the fixing portion 12a of the base portion 12, and the other end fixed to a fixing portion 14 to be described later. The

  The fixing portion 14 is made of brass and is formed in a short pipe shape having a hollow portion 14a having a circular cross section, and a fixing portion 14b for inserting and fixing the other end portion of the support column 13 into one end portion is integrated. A fixing rod 14c formed with a small diameter at the other end is formed integrally with the fixing portion. The hollow portion 14a of the fixed portion is formed up to the upper portion of the fixed rod 14c, and the portion of the fixed rod is configured with a solid brass rod so as to increase the strength. An insertion hole 14d is formed on the side surface of the fixed portion 14 so as to communicate substantially perpendicularly to the hollow portion 14a formed in the vertical direction. In the figure, reference numeral 14e denotes a retaining recess formed on the side surface of the fixed rod 14c, and reference numeral 14f denotes a bush formed of a flexible member such as rubber fitted in the insertion hole 14d.

  The base part 12, the column part 13, and the fixing part 14 configured as described above are fixed together by inserting both ends of the column part 13 into the respective fixing parts 12 a and 14 b and by means such as caulking, welding, or bonding. Thereby, although the diameter of the fixing | fixed part 14c of the nozzle | cap | die part 12, the support | pillar part 13, and the fixing | fixed part 14 is a little small diameter, the linear (FIG. 2) arm which makes the substantially same diameter as a whole and makes a substantially straight line. 15 is formed (in the case where the flexible tube is bent, a linear shape in which a substantially circular arc is drawn (FIG. 1)).

  Each fixing part 12a, 14b and the support | pillar part 13 are coat | covered with the opaque rubber tube 15a which has a softness | flexibility, and covers the bending step part of the support | pillar part which consists of a flexible tube, and has improved the external appearance property.

  As shown in FIG. 3, the bracket 16 is made of brass and has a box-like shape. A support hole 16a formed of a vertical vertical hole is formed on the upper surface, and the fixing rod 14c of the arm 15 is formed in the support hole. And support the arm so that it can freely rotate 360 °. Thereby, the base part 12, the support column part 13, the fixing part 14, the fixing rod 14c of the fixing part, and the support hole 16a of the bracket 16 are arranged in a linear shape.

  In addition, an installation surface 16b made of a flat surface for installing the bracket 16 on the installation portion such as the wall surface A is formed on the back surface of the bracket 16, in FIG. A plurality of mounting holes 16c are formed on the installation surface to be supported by wood screws or the like. 16d in the drawing is a screw for a stopper provided on the left side surface portion in the front, FIG. 3A, and is screwed into the recess 14e formed in the fixing rod 14c of the arm 15 described above from the screw hole and engaged. Thus, the fixing rod 14c is prevented from coming off upward. By removing the screw 16d, the engagement with the recess 14e is released, and the fixing rod 14c, that is, the arm 15 can be pulled out.

  In addition, the output terminal of the control part 11b is connected to LED11a which is a light source with a lead wire, and the electric wire C connected to a commercial power source is connected to the input terminal of a control part. The electric wire C is led out from the input terminal of the control unit to the hollow part 14a of the fixing part 14 through the hollow part of the female screw part 11d of the lamp 11, the male screw part 12b of the base part 12, and the hollow part of the column part 13, and fixed. It is pulled out from the insertion hole 14d formed in the side surface of the portion 14 (FIG. 2). A plug P for connecting to the outlet of a commercial power source is connected to the tip of the electric wire C (FIG. 4).

  Note that a push-type switch SW is provided between the input terminal of the control unit 11b and the electric wire C, and is configured to be turned on and off by pressing a button from the upper surface of the lamp 11.

  Next, the operation of the lighting fixture as the bed lamp configured as described above will be described. First, the bracket 16 is attached to the wall surface A near the bed head, which is the installation part. That is, with the support hole 16a formed of a vertical hole of the bracket 16 facing upward, the flat installation surface 16b is pressed against the wall surface A, and wood screws are inserted into the plurality of attachment holes 16c and screwed into the wall surface A (FIG. 1). ).

  At this time, the arm 15 as a whole is configured in a linear shape having substantially the same diameter and forming a substantially straight line, and in particular, a joint portion as shown in the conventional patent document 1 protrudes laterally from the support column in the fixed portion 14. Not. Further, there is no fixing rod 3 ′ formed on the side of the lower end portion of the power source unit 2 and the flexible tube 1 as shown in FIGS. 6 (a) and 6 (b) of the conventional example. For this reason, there is nothing that obstructs the turning operation of the arm 15 and it does not become difficult to turn the arm by hitting equipment or objects around the bed, thereby changing the installation location according to the presence of the equipment or goods. The installation location can be freely selected.

  Next, the fixing rod 14 c of the arm 15 to which the lamp 11 is attached is inserted into the support hole 16 a formed by the vertical hole of the bracket 16. Further, a stopper screw 16d is screwed in from the front and engaged with the recess 14e of the fixing rod 14c to prevent the fixing rod 14c from coming off upward.

  At this time, the arm 15 is formed in a linear shape having substantially the same diameter as a whole and forming a substantially straight line. In particular, the fixing portion 14 includes the conventional patent document 1 and the conventional example shown in FIGS. 6 (a) and 6 (b). There is nothing that hinders the rotation of the arm as shown, and the arm 15 is supported so that it can freely rotate 360 ° about the fixed rod 14c.

  In the state installed above, the plug P of the electric wire C is inserted into an outlet and commercial power is supplied to the control unit 11b through the electric wire. At this time, the arm 15 as a whole is formed in a linear shape having substantially the same diameter and forming a substantially straight line, and a space a having a sufficient width is formed between the fixed portion 14 and the wall surface A. For this reason, the electric wire C drawn out from the side surface of the fixed portion 14 of the arm 15 is not caught by a gap between the electric wire and the wall surface when the arm is rotated, and the rotation is not hindered.

  Next, when the switch SW of the lamp 11 is turned on, the LED 11a as the light source is turned on. In this state, the arm 15 is gripped, and the support column 13 of the arm 15 made of a flexible tube is freely bent up and down to adjust the position of illumination in the vertical direction. Further, the illumination position in the left-right direction is adjusted by rotating left and right about the fixed rod 14c. Thus, the user can freely adjust and determine the desired illumination position. When the light is turned off after use, the switch SW is pressed to turn off the power.

  When repairing or inspecting the lighting fixture, removing the screw 16d releases the engagement with the recess 14e and pulls the fixing rod 14c out of the support hole 16a of the bracket 16. Can be removed (state of FIG. 4).

  If the bracket 16 is installed corresponding to each bed, the removed lamp 11 and arm 15 can be moved to a desired bed, or the lamp and arm for each bed can be exchanged.

  In the present embodiment, the bracket 16 is configured to be directly attached to the wall surface A or the like close to the bed head, which is an installation part. However, as shown in FIG. A U-shaped portion may be sandwiched between a table board B such as a desk and attached so that it can be attached and detached with a thumbscrew 20a.

  The fixing portion 14 of the arm 15 is configured such that the fixing rod 14c can be rotated by being inserted into the support hole 16a formed of a vertical hole of the bracket 16, but a spherical hole is formed in the bracket, and a spherical shape is formed in the fixing portion of the arm. A so-called ball joint may be formed by forming the ball integrally and fitting the spherical ball into the spherical hole of the bracket.

  Although LED11a which is the light source of the lamp 11 was comprised by white LED, you may comprise by LED which light-emits in red, green, blue, etc. according to a use aspect. Or you may comprise by multiple, such as mixing these.

  Although the lighting apparatus of the present embodiment is configured as a bed lamp in a hospital, a medical welfare facility, or the like, it may be configured as a lighting apparatus such as a general household, an office, a facility such as a hotel, a business bed lamp or a desk lamp. .

  As described above, according to the present embodiment, by providing the lamp 11 with the control unit 11b that controls the light source 11a, the arm 15 is configured in a linear shape that has substantially the same diameter as a whole and forms a substantially straight line. There is nothing that obstructs the pivoting operation of the arm as shown in the conventional patent document 1 and the conventional examples shown in FIGS. 6 (a) and 6 (b).

  For this reason, the arm 15 is supported so that it can freely rotate 360 ° about the fixed rod 14c. Further, it is possible to freely select the installation location without causing difficulty in rotation by hitting equipment or objects around the bed. Further, a sufficient width a is formed between the fixed portion 14 and the wall surface A, and the electric wire C drawn from the side surface of the fixed portion 14 is prevented from being caught when the arm 15 is rotated. There is nothing.

  Further, the fixing rod 14c of the arm 15 is formed integrally and continuously with the fixing portion 14 so as to have a substantially straight line and a substantially straight line as a whole, and is shown in FIG. 6 (b). Thus, without forming a separate fixing rod 3 ′ on the side of the lower end portion of the flexible tube 1, the number of components can be reduced, the structure can be simplified, and a lighting device that is advantageous in terms of cost can be provided. . Furthermore, since there is no need to provide a separate fixing rod 3 ', there is no restriction due to the distance dimension b between the fixing rod 3' and the bracket 4 tip. Thereby, the fall of the versatility which was a problem conventionally can be eliminated.

  In addition, the fixing rod 14c of the arm 15 has a simple configuration that is held by the hole diameter of the support hole 16a formed of a vertical hole of the bracket 16, and thus can be used for various brackets such as wall surfaces and desks. Furthermore, it is possible to provide a lighting apparatus with a high versatility.

  Since the support column 13 of the arm 15 is composed of a flexible tube, the arm can be easily configured in a substantially straight line with a substantially same diameter as a whole, the structure is simplified, and the direction of illumination is free. Can be changed to

  Since the insertion hole 14d for inserting the electric wire C through the hollow portion is formed on the side surface of the fixed portion 14, the electric wire C can be accommodated in the arm 15, and the amount of the electric wire protruding to the side is reduced. Thus, the rotation of the arm is prevented from being hindered, and at the same time, the electric wire can be accommodated in the arm, so that it is possible to provide a lighting apparatus that is safe and excellent in appearance and design. Further, as shown in FIG. 6B, since the drawn out electric wire 6 does not protrude to the side of the bracket 4, there is no possibility of preventing the rotation.

  Since the LED 11a having a relatively high directivity is used as the light source of the lamp 11 and the spot light distribution is made by the lens body and the reflector, only the person in the installed bed illuminates within a necessary range. The person in the next bed does not receive the light, and the next patient in bed does not feel dazzling. At the same time, it is small and lightweight, and does not become unpleasant because it does not generate as much heat as an incandescent light bulb, and can provide an energy-saving lighting fixture.

  Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the scope of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The lighting fixture which concerns on embodiment of this invention is shown, (a) is the side view which notches and shows a part, (b) is the front view which looked at the light source of the lamp from the arrow direction of (a). Similarly, the side view which abbreviate | omits one part and shows the arm of a lighting fixture partially. Similarly, the state which inserted the fixing | fixed part of the arm in the bracket of a lighting fixture is shown, (a) is a side view which notches and shows a part, (b) is a front view. The perspective view which similarly shows a lighting fixture. Similarly, the side view which cuts off and shows the modification of a lighting fixture. The conventional lighting fixture is shown, (a) is a side view showing a first conventional example with a part cut away, and (b) is a side view showing a second conventional example with a part cut away.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Lighting fixture 11 Lamp 11a Light source 11b Control part 12 Base part 13 Support | pillar part 14 Fixing part 14a Hollow part 14d Insertion hole 15 Arm A Installation part

Claims (3)

A lamp provided with a light source and a control unit for controlling the light source;
A base part that supports the lamp, a support part that can be bent with one end connected to the base part, a fixing part that is connected to the other end part of the support part and is rotatably supported with respect to the installation part, An arm formed so that the section, the support section and the fixed section are substantially linear;
The lighting fixture characterized by comprising. The lighting fixture according to claim 1, wherein the support column portion of the arm is formed of a flexible tube. The base part, the column part, and the fixing part of the arm are configured to have a hollow part through which the electric wire is inserted, and an insertion hole for connecting the electric wire to the hollow part is formed on the side surface of the fixing part. The lighting fixture according to claim 1 or 2.

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