JP2007141642A - Illumination apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an illumination apparatus capable of obtaining appropriate operation feeling when rotating a light body against an apparatus main body without increasing the number of components, capable of improving freedom of irradiation angle of the light body. <P>SOLUTION: The illumination apparatus 1 is composed of a main body part 3 having almost C-shaped cross section of which one part is opened, an apparatus main body 2 having hole parts 4a, and a plate body 4 to be arranged at the opening 3a of the main body part 3, almost ball-shaped light bodies 5 having an LED 5c, housed in the apparatus main body 2, having one part exposed from the hole part 4a of the plate body 4, rotatable against the apparatus main body 2, projections 3d arranged integrally with the main body part 3 at inner peripheral face of the apparatus main body 2 facing the opening 3a of the main body part 3 along axial direction of the main body part 3, pushing the light body 5 against edge part of the hole part 4a on the plate body 4 by contacting the light body 5, and edge plates 7 arranged at both end parts 2a of the apparatus main body 2 housing the light bodies 5 in a manner of interposing the apparatus main body 2 in between, rotatably holding the apparatus main body 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a lighting apparatus installed under a shelf, for example.

  2. Description of the Related Art In recent years, LEDs that can withstand applications such as under the shelf have been developed due to high performance of light emitting diodes (hereinafter referred to as “LEDs”), and lighting fixtures using LEDs have been proposed.

As a lighting fixture using an LED, for example, a lighting fixture is disclosed in which a substantially spherical lamp body provided with an LED is rotatably held in the fixture body so that the light irradiation direction of the lamp body can be varied. (For example, refer to Patent Document 1). In this technique, a leaf spring is used to press the lamp body against the fixture body, and an appropriate operational feeling is obtained when the lamp body is rotated with respect to the fixture body.
JP-A-2005-149790

  However, in the above technique, since a leaf spring is used as a mechanism for obtaining an appropriate operational feeling when rotating the lamp body, when a plurality of lamp bodies are accommodated in the fixture body, each lamp body is used. On the other hand, it is necessary to provide a leaf spring, and it is necessary to cover the leaf spring with an outer shell, which increases the number of parts.

  On the other hand, in the above technique, since the lamp body is rotatable, there is a certain degree of freedom in the light irradiation angle, but at present, in order to correspond to various mounting locations, a further degree of freedom in the light irradiation angle. Improvement is demanded.

  The present invention has been made to solve the above problems. That is, there is provided a lighting fixture that can obtain an appropriate operational feeling when rotating the lamp body with respect to the fixture body without increasing the number of parts and can improve the degree of freedom of the light irradiation angle of the lamp body. The purpose is to provide.

  The invention according to claim 1 is a device main body comprising a main body portion having a substantially C-shaped cross section that is partially open, and a plate body that has a hole and is provided in the opening of the main body portion; A substantially spherical lamp having a light source, part of which is exposed from the hole of the plate body and rotatable with respect to the instrument body; and an inner peripheral surface facing the opening of the body part in the instrument body A protrusion provided integrally with the main body and along the axial direction of the main body, and abutting against the lamp and pressing the lamp against the edge of the hole of the plate; both ends of the fixture body so as to sandwich the instrument body And an end plate that rotatably supports the fixture main body in which the lamp body is accommodated.

  The shape of the hole in the plate is not particularly limited, but is preferably substantially circular. In this case, the diameter of the hole is preferably smaller than the diameter of the lamp body.

  The lamp body has a substantially spherical shape, but the “substantially spherical” in the present invention is a concept including not only a sphere but also a shape approximate to a sphere. The shape approximated to a sphere is mainly a shape composed of a portion whose outer edge is arcuate. Examples of such a shape include a shape in which a part of a sphere is flat.

  The lamp body can be rotated in any direction with respect to the instrument body. Moreover, as a light source of a lamp body, a light emitting diode (LED) etc. are mentioned, for example.

  It is preferable that a convex portion is formed on the outer peripheral surface of the lamp body so as to be in contact with the inner peripheral surface of the main body portion and restrict the rotation range of the lamp body. By providing such a convex portion, the lamp body rotates to a position where the convex portion of the lamp body contacts the inner peripheral surface of the main body portion, but the convex portion of the lamp body contacts the inner peripheral surface of the main body portion. Since the rotation of the lamp body with respect to the fixture body is hindered by this contact at the contact position, the lamp body does not rotate with respect to the fixture body any more. Thereby, the excessive rotation of the lamp with respect to the instrument body can be suppressed.

  The protrusion abuts the lamp body and presses the lamp body against the edge of the hole of the plate body.For example, a main body portion in which the width of the arrangement position of the plate body is smaller than the width of the actual plate body is prepared. By arranging the plate body at the position of the plate body of the main body portion, the lamp body can be pressed against the edge of the hole of the plate body by bringing the projection into contact with the lamp body. More specifically, when such a main body portion is manufactured and a plate body is disposed at a position where the plate body of the main body portion is disposed, the main body portion is pulled in the width direction of the plate body, so that the protrusion approaches the plate body. Thereby, the projection can be brought into contact with the lamp body and the lamp body can be pressed against the edge of the hole of the plate body.

  The connection relationship between the end plate and the instrument main body is not particularly limited as long as the instrument main body can rotate with respect to the end plate. Moreover, the instrument main body is rotatable with respect to the end plate about the axis of the instrument main body.

  In the first aspect of the present invention, the protrusion is provided integrally with the main body portion along the axial direction of the main body portion on the inner peripheral surface of the main body portion facing the opening of the main body portion, and is in contact with the lamp body. Since the lamp body is pressed against the edge of the hole of the plate body, it is possible to obtain an appropriate operational feeling when the lamp body is rotated with respect to the fixture body without increasing the number of parts. Moreover, since the end plate supports the instrument main body so as to be rotatable, not only the lamp body but also the instrument main body can be rotated.

  According to a second aspect of the present invention, in the lighting device according to the first aspect, the end plate includes a position restricting portion that restricts a rotation range of the main body of the device by contacting a projection of the main body of the device. In the invention according to claim 2, since the position restricting portion is formed on the end plate, when the device main body is rotated with respect to the end plate, the position restricting portion of the end plate is formed on the device main body. Although it rotates to a position, in the position where the position control part of an end plate is formed, since the protrusion of an instrument main body contacts the position control part of an end plate, rotation of the instrument main body with respect to an end plate is prevented.

  According to a third aspect of the present invention, the luminaire is embedded in the mounting location, and a part of the fixture main body protrudes from the mounting surface on which the luminaire is mounted at the mounting location. It is. In the invention according to claim 3, by embedding a part of the instrument main body from the mounting surface, it is possible to reduce the embedding depth of the lighting apparatus by the amount of the part of the instrument main body exposed.

  According to the first aspect of the present invention, it is possible to obtain an appropriate operational feeling when the lamp body is rotated with respect to the fixture body without increasing the number of parts. Moreover, the freedom degree of the light irradiation angle in a lamp body can be improved. According to invention of Claim 2, the excessive rotation of the instrument main body with respect to an end plate can be suppressed. According to invention of Claim 3, a lighting fixture can be attached also in the attachment location where the embedding depth cannot be taken deeply.

  Hereinafter, embodiments will be described with reference to the drawings. FIG. 1 is a schematic perspective view of a lighting fixture according to the present embodiment, FIG. 2 is a schematic longitudinal sectional view of the lighting fixture according to the present embodiment in the short direction, and FIG. It is a typical front view of the instrument main body which concerns on this form. 4A is a schematic front view of the end plate according to the present embodiment, and FIG. 4B is a schematic longitudinal sectional view of the end plate according to the present embodiment. FIG. 5A is a schematic diagram when the lamp body according to the present embodiment is rotated with respect to the instrument main body, and FIG. 5B is a schematic diagram illustrating the instrument main body according to the present embodiment rotated with respect to the end plate. It is a schematic diagram when it is made to do.

  As shown in FIG. 1 to FIG. 4B, the lighting fixture 1 includes a fixture body 2. The instrument main body 2 has a substantially C-shaped main body 3 having an opening 3 a formed along the axial direction and a plurality of holes 4 a, and a plate body 4 provided in the opening 3 a of the main body 3. It consists of and. The holes 4 a are substantially circular and are formed in a line in the axial direction of the main body 3.

  A claw portion 3 c is formed on the opening edge portion 3 b of the main body portion 3 so as to protrude inward of the main body portion 3 and along the axial direction of the main body portion 3. Further, on the inner peripheral surface of the main body 3, a projection 3 d is formed integrally with the main body 3 along the axial direction of the main body 3 at a position facing the plate body 4.

  The length of the plate 4 is substantially equal to the length of the main body 3 in the axial direction. The plate body 4 is supported by the claw portion 3 c, thereby closing the opening 3 a from the inside of the main body portion 3.

  A plurality of substantially spherical lamps 5 having LEDs 5c, which will be described later, are accommodated in the instrument body 2. The diameter of the lamp body 5 is larger than the diameter of the hole 4a, and a part of the lamp body 5 is exposed from the hole 4a.

  The lamp body 5 is pressed against the opening edge of the hole 4 a by the contact of the protrusion 3 d, but the lamp body 5 is not fixed to the fixture body 2. Thereby, the lamp body 5 can be rotated with respect to the instrument main body 2 as shown in FIG. 5A by moving the exposed portion of the lamp body 5 manually. The lamp 5 is rotatable in all directions with respect to the instrument body 2.

  Here, the width of the place where the plate 4 is arranged in the main body 3 is smaller than the width of the plate 4 before the plate 4 is arranged. For this reason, when the plate body 4 is disposed in the main body portion 3, the main body portion 3 is somewhat pulled in the width direction of the plate body 4. As a result, since the position of the protrusion 3d approaches the plate body 4, the protrusion 4 can contact the lamp body 5 and press the lamp body 5 against the opening edge of the opening 4a. Thereby, an appropriate operational feeling when rotating the lamp body 5 with respect to the fixture body 2 is obtained, and the lamp body 5 is prevented from rotating due to a slight impact or the like.

  A convex portion 5 a is formed on the outer peripheral surface of the lamp body 5. Here, since the center of the lamp body 5 is located on the protrusion 3d side from the center of the main body 3, the gap between the lamp body 5 and the main body 3 becomes narrower toward the protrusion 3d as shown in FIG. ing. In such a state, when the lamp body 5 is rotated with respect to the instrument body 2, the lamp body 5 rotates to a position where the convex portion 5 a contacts the inner peripheral surface of the main body section 3. At the position where the convex portion 5a is in contact with the inner peripheral surface of the main body 3, the contact of the lamp body 5 with respect to the instrument main body 2 is prevented by this contact as shown in FIG. 5 (a). The lamp body 5 does not rotate with respect to the instrument body 2. Thereby, the excessive rotation of the lamp 5 with respect to the instrument main body 2 can be suppressed.

Lamp body 5 is provided with a lamp body 5b of substantially spherical having an opening 5b _1, and LED5c as a light source disposed within the lamp body body 5b, a lens 5d disposed within the lamp body body 5b . Light emitted from LED5c is irradiated to the outside through the lens 5d and the opening 5b _1. Note that the lamps 5 are electrically connected to each other by a lead wire 6.

  Both end portions 2a of the instrument body 2 are provided with end plates 7 that support the instrument body 2 in a rotatable manner. The end plate 7 is formed with a hole 7a having an inner diameter that is substantially the same as the outer diameter of the end portion 2a. The end plate 7 is formed by fitting the hole 7a of the end plate 7 with the end portion 2a of the instrument body 2. The instrument body 2 is sandwiched. Thereby, the instrument main body 2 can be rotated with respect to the end plate 7 as shown in FIG. The instrument body 2 is rotatable with respect to the end plate 7 about the axis of the instrument body 2.

  On the inner surface of the end plate 7, a position restricting portion 7 b that is at least partially located in the instrument main body 2 and that the protrusion 3 d abuts to regulate the rotation range of the instrument main body 2 is formed. Specifically, the position restricting portion 7b is arranged at a position near the inner peripheral surface of the instrument main body 2 in a state where the hole 7a of the end plate 7 and the end 2a of the instrument main body 2 are fitted. Is formed. Here, when the instrument body 2 is rotated with respect to the end plate 7, the instrument body 2 is rotated to the position where the position restricting portion 7 b of the end plate 7 is formed. At the position where the restricting portion 7b is formed, the protrusion 3d abuts on the position restricting portion 7b as shown in FIG. 5B, and the rotation of the instrument body 2 with respect to the end plate 7 is prevented. The instrument body 2 does not rotate with respect to the end plate 7. Thereby, the excessive rotation of the instrument main body 2 with respect to the end plate 7 can be suppressed.

  The instrument body 2 that houses the lamp body 5 and to which the end plate 7 is attached is surrounded by a flat frame body 8, and the end plate 7 is fixed to the opening edge 8 a of the frame body 8. ing. The frame body 8 includes a screw hole 8b.

  Such a luminaire 1 is used by being embedded in an attachment location such as a ceiling surface. FIG. 6A is a schematic longitudinal sectional view in the short direction of the lighting fixture in a state of being embedded in the mounting location according to the present embodiment, and FIG. 6B is a diagram illustrating the mounting location according to the present embodiment. It is a typical longitudinal cross-sectional view of the longitudinal direction of the lighting fixture in the embedded state.

  As shown in FIG. 6A and FIG. 6B, the lighting fixture 1 has the screw 9 attached to the mounting surface A through the screw holes 8b of the frame 8 in a state where the lighting fixture 1 is embedded in the mounting portion. By attaching, it can be attached to the attachment location. Both opening edge portions 3 b in the main body portion 3 are exposed from the mounting surface A. The means for attaching the lighting fixture 1 to the attachment surface A is not limited to the screw 9.

  According to the present embodiment, the protrusion 3 d formed integrally with the main body 3 and along the axial direction of the main body 3 is provided on the inner peripheral surface of the instrument main body 2 facing the opening 3 a of the main body 3. Thus, since an appropriate operational feeling when rotating the lamp body 5 is obtained, a part for obtaining an appropriate operational feeling for each lamp body 5 is not required. Thereby, it is possible to obtain an appropriate operational feeling when the lamp body 5 is rotated with respect to the fixture body 2 without increasing the number of parts.

  According to the present embodiment, not only the lamp body 5 is rotatable with respect to the instrument body 2 but also the instrument body 2 is rotatable with respect to the end plate 7. The degree of freedom of the light irradiation angle in 5 can be improved. In addition, since this lighting fixture 1 can improve the freedom degree of light irradiation angle, when the lighting fixture 1 is installed under a shelf, for example, not only a lamp but the fixture main body 2 is rotated in the depth direction of a shelf. Can be made. This makes it possible to irradiate light further in the depth direction of the shelf, so that when the customer looks at the product displayed on the shelf, the LED is directly viewed and the discomfort caused by glare is eliminated (glare) can do.

  When an LED is used as the light source of the lamp body, the LED has a strong directivity, and therefore it is necessary to incorporate a lens for diffusing the light of the LED into the lamp body. For this reason, since the thickness of a lighting fixture becomes thick, when the whole lighting fixture is embedded in an attachment location, it is necessary to take the embedding depth in an attachment location deeply. On the other hand, according to the present embodiment, a part of the instrument main body 2, specifically, both opening edge portions 3 b in the main body portion 3 are exposed from the mounting surface A. Since the opening edge 3b of the main body 3 is exposed, the depth of embedding of the lighting fixture 1 can be reduced. Thereby, the lighting fixture 1 can be attached also in the location where the embedding depth cannot be taken deeply in the attachment location.

  In addition, when the entire lighting fixture is embedded in the mounting location, if the fixture main body is rotated, the light from the lamp may be blocked by the inner surface or the frame of the mounting location. It will be limited to. On the other hand, according to this Embodiment, since both the opening edge parts 3b in the main-body part 3 are exposed from the attachment surface A, the rotation range of the instrument main body 2 can be expanded. Thereby, the freedom degree of the light irradiation angle in the lamp body 5 can be improved more.

  The present invention is not limited to the description of the above embodiment, and the structure, material, arrangement of each member, and the like can be appropriately changed without departing from the gist of the present invention.

FIG. 1 is a schematic perspective view of a lighting apparatus according to an embodiment. FIG. 2 is a schematic longitudinal sectional view in the short direction of the lighting apparatus according to the embodiment. FIG. 3 is a schematic front view of the instrument body according to the embodiment. FIG. 4A is a schematic front view of an end plate according to the embodiment, and FIG. 4B is a schematic longitudinal sectional view of the end plate according to the embodiment. FIG. 5A is a schematic diagram when the lamp body according to the embodiment is rotated with respect to the instrument body, and FIG. 5B is a diagram illustrating the rotation of the instrument body according to the embodiment with respect to the end plate. It is a schematic diagram when it is moved. FIG. 6A is a schematic longitudinal sectional view in the short direction of the lighting fixture in a state of being embedded in the mounting location according to the embodiment, and FIG. 6B is embedded in the mounting location according to the embodiment. It is a typical longitudinal cross-sectional view of the longitudinal direction of the lighting fixture in a state.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Lighting fixture, 2 ... Appliance main body, 2a ... End part, 3 ... Main body part, 3a ... Opening, 3d ... Projection, 4 ... Plate body, 4a ... Hole, 5 ... Lamp body, 5a ... Convex part, 5c ... Light emitting diode, 7... End plate, 7 b.

Claims (3)

An instrument main body comprising a main body portion having a substantially C-shaped cross section that is partially open, and a plate having a hole and provided in the opening of the main body portion;
A substantially spherical lamp having a light source, housed in the fixture body, partly exposed from the hole in the plate, rotatable relative to the fixture body;
Provided on the inner peripheral surface of the fixture body that faces the opening of the main body portion, integrally with the main body portion and along the axial direction of the main body portion, and abuts the lamp body on the edge of the hole of the plate body A protrusion to be pressed;
An end plate provided at both ends of the instrument body so as to sandwich the instrument body, and rotatably supporting the instrument body in which the lamp body is accommodated;
The lighting fixture characterized by comprising.   The lighting device according to claim 1, wherein the end plate includes a position restricting portion that restricts a rotation range of the device main body by contacting a protrusion of the device main body.   The lighting fixture according to claim 1 or 2, wherein the lighting fixture is embedded in an attachment location, and a part of the fixture main body protrudes from an attachment surface on which the illumination fixture is attached at the attachment location.

Images