JP2010199011A - Lighting system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting system capable of making a continuous shift of illumination direction. <P>SOLUTION: The lighting system 1 is provided with a light source, a housing 2 to hold the light source, a pair of protrusions 3 protruding from both ends of the housing 2 in a major axis direction of the housing 2, and a pair of holders 4 to axially support the housing 2 by gripping the pair of protrusions 3 so that the housing 2 can make a free rotation around the major axis. The protrusions 3 are cylinder members protruding from both ends of the housing 2 in the major axis direction of the housing 2 and arranged so that a rotation central axis of the cylinder is to be coaxial with the major axis direction of the housing 2. The holders 4 are gripping members to grip the protrusions 3 so that the same make free rotation around the major axis; formed by bending a plate into a circular arc, and a diameter of the circular arc is arranged to be slightly smaller than that of the protrusions 3. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an illumination device capable of continuously changing an irradiation direction.

  Patent Document 1 describes an LED illumination device that includes terminals that fit into sockets of fluorescent lamp fixtures at both ends of a transparent cylindrical pipe that incorporates LED elements.

  Since this LED illumination device includes a terminal that fits into a socket of a fluorescent lamp fixture, it can be used by being attached to an existing fluorescent lamp fixture instead of a normal fluorescent lamp. However, since the LED element of this LED lighting device is fixed in a transparent cylindrical pipe and the transparent cylindrical pipe is fixed to a fluorescent lamp fixture, the irradiation direction of the LED lighting device cannot be changed to a desired direction. was there.

  Therefore, in order to solve this problem, end pipes that freely rotate around the central axis of the transparent cylindrical pipe are attached to both ends of the transparent cylindrical pipe of the LED lighting device, and the fluorescent lamp fixture is attached to the end pipe. Patent Document 2 proposes providing a terminal that fits into a socket.

JP 2001-351402 A JP 2007-012322 A

  In the LED illumination device described in Patent Document 2, the transparent cylindrical pipe rotates with respect to the end pipe fixed to the socket of the fluorescent lamp fixture, so that the illumination light irradiation direction can be changed.

  However, since the rotation angle of the transparent cylindrical pipe is held at a position where the plunger attached to the transparent cylindrical pipe and the small hole drilled in the end pipe are fitted, the irradiation direction of the LED lighting device can be freely set. There was a problem that fine adjustment was not possible. For example, when the small holes are arranged at a pitch corresponding to a rotation angle of 90 ° of the transparent cylindrical pipe, the irradiation direction of the LED lighting device can only be changed at a pitch of 90 °. If the number of small holes is increased, the irradiation direction can be changed with a small pitch, but since the number of small holes is finite, this LED illumination device can select the irradiation direction discretely, but the irradiation direction can be changed. It could not be changed continuously.

  This invention is made | formed in view of the said situation, and it aims at providing the illuminating device which can change an irradiation direction continuously.

  An illumination device according to the present invention grips a light source, a housing holding the light source, a pair of projecting portions projecting in the longitudinal axis direction of the housing from both ends of the housing, and the pair of projecting portions, respectively. And a pair of holders that pivotally support the housing so as to freely rotate about the longitudinal axis.

  According to the present invention, the irradiation direction can be fixed in an arbitrary direction by continuously changing the irradiation direction of the illumination light.

It is an external view of the illuminating device which shows embodiment of this invention. (A) is a figure which shows the basic composition of an illuminating device, (b) is a figure which shows the function of an illuminating device. It is an exploded view which shows the detailed structure of an illuminating device. It is a figure which shows the state which attached the illuminating device to the ceiling. (A) is an outline drawing, (b) is a figure which shows a function. It is a figure which shows the state which attached the illuminating device to the wall surface. It is a figure which shows the modification of a projection part and a holder. (A) is the longitudinal cross-sectional view of a projection part, (b) is the cross-sectional view cut | disconnected by the A-A 'line | wire of (a), (c) is the external view of a holder. It is a figure which shows the modification of a holder. It is a figure which shows the modification which fastens a holder to a ceiling.

  Hereinafter, the configuration and operation of the illumination device 1 shown in the embodiment of the present invention will be described with reference to the drawings.

  The illuminating device 1 is an illuminating device that is used by being attached to a ceiling, a wall or the like (hereinafter referred to as an “attachment place”). As shown in FIG. And a holder 4 for holding the protrusion 3.

  The housing 2 is a cylindrical housing containing a light source as described later. Further, light emitted from the light source is emitted to the outside of the housing 2. The material of the housing 2 is not particularly limited. For example, an appropriate one is selected from various plastics.

  The protrusion 3 is a columnar member that protrudes from both ends of the housing 2 in the longitudinal axis direction of the housing 2, and is arranged so that the rotation center axis of the column is coaxial with the longitudinal axis of the housing 2.

  The holder 4 is a gripping member that is fixed at the mounting location and grips the protrusion 3 so as to be rotatable about the longitudinal axis. The holder 4 is formed by bending a plate-like body into an arc shape, and the diameter of the arc is slightly smaller than the diameter of the protrusion 3. Therefore, when the protrusion 3 is attached to the holder 4, the diameter of the arc is expanded, and the protrusion 3 is pressed by an elastic force that attempts to restore the diameter of the holder 4. Further, the material, shape and dimensions of the holder 4 are appropriately selected, and in a natural state, the protrusion 3 is gripped by the holder 4 and stopped at an arbitrary angle. The protrusion 3 rotates with respect to the holder 4.

  That is, as shown in FIG. 1B, if a force is applied to the housing 2 by hand, the housing 2 rotates freely about its longitudinal axis, and if the hand is released, the housing 2 can be rotated at an arbitrary rotation angle ( Position).

  Next, a detailed configuration of the lighting device 1 will be described with reference to FIG.

  As described above, a light source is built in the housing 2, but here the LED element 5 is used as the light source. The LED element 5 is mounted on a circuit board 6, and the circuit board 6 is inserted into the housing 2 from the end of the housing 2 and fixed.

  Note that power is supplied to the circuit board 6 from an external power supply device (not shown) via a conductor (not shown), and the LED element 5 emits light by the power.

  An opening 7 is formed on the side surface of the housing 2 facing the LED element 5, and the opening 7 is covered with a cover 8. The cover 8 is a transparent face that protects the LED element 5, and for example, a transparent polycarbonate resin or the like may be selected as the material of the cover 8. Since it is configured in this way, the light emitted from the LED element 5 is emitted to the outside through the opening 7.

  The protrusion 3 is formed at the end of the cap 9. Further, when the cap 9 is fitted into the housing 2 from the openings at both ends of the housing 2, the cap 9 is fixed to the housing 2 by the elasticity of the cap 9 itself. That is, when the cap 9 is fitted into the housing 2, the protrusion 3 is fixed to the housing 2. Needless to say, the shape and size of the cap 9 are selected so as not to interfere with the LED element 5 and the circuit board 6.

  Further, a stopper 10 is provided at the tip of the protrusion 3 to prevent the protrusion 3 from falling off the holder 4.

  The holder 4 has a grip portion 11 that grips the protrusion 3 and an attachment surface 12 that contacts the attachment location. In addition, a screw hole 13 is formed in the attachment surface 12, and a screw 14 is passed through the screw hole 13 to be fastened to an attachment place.

  Now, as shown to Fig.3 (a) and (b), the illuminating device 1 can be fixed and used for the ceiling 15. FIG. As described above, since the housing 2 can be freely rotated around its longitudinal axis and stopped at an arbitrary angle, the irradiation direction can be adjusted so that the illumination light of the illumination device 1 strikes the illumination target 16. it can.

  Moreover, as shown in FIG. 4, the illuminating device 1 can also be fixed to the wall surface 17 and used. Also in this case, the irradiation direction can be adjusted so that the illumination light of the illumination device 1 strikes the illumination target.

  In the present embodiment, the example in which the protrusion 3 is formed at the end of the cap 9 is shown, but the technical scope of the present invention is not limited to this. The protrusions 3 may be directly attached to both ends of the housing 2. For example, the protrusions 3 may be directly fastened to both ends of the housing 2, or the protrusions 3 may be integrated with the housing 2.

  In the present embodiment, the opening 7 is provided on the side surface of the housing 2 so that the light emitted from the LED element 5 is emitted to the outside through the opening 7, but the technical scope of the present invention is as follows. It is not limited to this. It is sufficient that the housing 2 is configured to hold the light source (the LED element 5 in the present embodiment) in the interior thereof so that the light emitted from the light source is emitted to the outside. Is not limited. For example, the entire housing 2 may be transparent.

  The shape, form, and material of the protrusion 3 and the holder 4 are not limited to those shown in this embodiment. It suffices if the housing 2 is pivotally supported so as to freely rotate about the longitudinal axis of the housing 2 and is stationary at an arbitrary rotation angle. Moreover, the protrusion part 3 and the holder 4 may be comprised with the some raw material or member. For example, as shown in FIGS. 5A and 5B, if the outer peripheral surface of the protrusion 3 is covered with a protective film 18 having excellent wear resistance, the wear of the protrusion 3 can be suppressed. Alternatively, as shown in FIG. 5C, the grip portion 11 may be covered with a protective film 18. Even if comprised in this way, the same effect can be acquired. Examples of the material of the protective film 18 having excellent wear resistance include polytetrafluoroethylene, ultrahigh molecular polyethylene, urethane resin, polyacetal, and the like.

  Moreover, the shape of the holding part 11 of the holder 4 is not limited to what bent the one material in circular arc shape. As shown in FIG. 6, two members bent in a substantially semicircular shape may be coupled to face each other. In this case, since the lower part of the gripping part 11 is opened, the projecting part 3 and the gripping part 11 can be coupled and the projecting part 3 is pulled down by simply bringing the projecting part 3 below the gripping part 11 and lifting it upward. Just remove it. In this way, the coupling and release of the protrusion 3 and the grip 11 are facilitated.

  Moreover, in this embodiment, although the example (FIG. 2 or FIG. 3) which fastens and fixes the holder 4 to the ceiling 15 using the screw | thread 14 was shown, instead of fastening with the screw | thread 14, as shown in FIG. When the rail member 19 is attached to the ceiling 15 and the holder 4 is fastened to the movable member 20 that is guided by the rail member 19 and moves freely in the longitudinal direction of the rail member 19 (direction perpendicular to the paper surface of the drawing), It can be freely moved along the rail member 19. In addition, since the distance between the two holders 4 can be freely changed, the dimension (length) of the housing 2 of the existing lighting device 1 can be changed, or the mounting position of the existing lighting device 1 can be changed. It becomes easy to do.

  Moreover, in this embodiment, although the example which made the light source of the illuminating device 1 the LED element 5 was shown, the technical scope of this invention is not limited to this. The present invention can be applied to a lighting device including various light sources. Needless to say, the present invention can be freely applied, modified or improved within the scope of the technical idea described in the claims.

  As described above, the illuminating device of the present invention is suitable as an illuminating device for a showcase because the illumination direction of illumination light can be freely changed and fixed in an arbitrary direction. Moreover, it can also be attached to a wash-basin unit, a learning desk, etc. Furthermore, it can also be used as a shelf downlight and a passage light.

DESCRIPTION OF SYMBOLS 1 Illuminating device 2 Housing 3 Protruding part 4 Holder 5 LED element 6 Circuit board 7 Opening part 8 Cover 9 Cap 10 Stopper 11 Holding part 12 Mounting surface 13 Screw hole 14 Screw 15 Ceiling 16 Illumination target 17 Wall surface 18 Protective film 19 Rail member 20 Mover

Claims (7)

A light source;
A housing for holding the light source;
A pair of projecting portions projecting in the longitudinal direction of the housing from both ends of the housing;
A pair of holders that respectively hold the pair of protrusions and pivotally support the housing so as to freely rotate around the longitudinal axis. The holder has an elastic member that presses the protrusion,
The lighting device according to claim 1, wherein the housing is held at an arbitrary angle around the longitudinal axis by a pressing force of the elastic member. The protrusion is a cylindrical member having the longitudinal axis as a rotation center,
The lighting device according to claim 2, wherein the elastic member is an arc member extrapolated to the column member, and an inner diameter of the arc member in an unloaded state is smaller than an outer shape of the column member. The lighting device according to claim 1, wherein the light source is an LED element. The lighting device according to claim 4, wherein the LED element is disposed on a surface of a circuit board. The lighting device according to claim 5, further comprising an opening that opens to a surface of the housing facing the LED element. The lighting device according to claim 6, further comprising a cover that covers the opening.

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