JP5172535B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting fixture that can be rotatably supported on a support member such as an arm to change an illumination range.

  Conventionally, for example, there is a lighting fixture as shown in FIG. 6 for illuminating a task surface such as a work table or a study desk. In FIG. 6, the luminaire 3 has a lamp 32 housed inside a box-shaped housing 31 having an opening below, and is rotatable about an arm 41 extending from the end of the work table 4 via a hinge 33. It is supported.

  The illumination range of the task surface of the work table 4 can be changed by swinging the lighting fixture 3 configured in this manner up and down with the hinge 33 as a fulcrum (see, for example, Patent Document 1).

  In the conventional lighting apparatus 3 described above, if the lamp 32 is to be replaced, the work must be done on its back. However, since there is a task surface of the work table 4 immediately below the luminaire 3, it is difficult to replace the lamp 32.

  In order to avoid this, for example, as shown in FIG. 7, the luminaire 3 is rotated upward so that the opening of the housing 31 is directed in the lateral direction. Perform replacement work. However, in order to stably fix the opening of the lighting fixture 3 in the lateral direction, tightening means such as screwing for temporarily restraining the rotation of the hinge 33 is necessary. However, there is a problem that the additional work for screwing is increased and the lamp replacement work becomes complicated.

JP 2001-43722 A

  The present invention has been made in view of the above circumstances, and provides an illuminator that can be easily replaced by a luminaire that can be rotatably supported on a support member such as an arm to change the illumination range. With the goal.

The luminaire of the present invention is a luminaire in which a lamp is housed inside a box-shaped housing having an opening below, and is rotatably supported with respect to a support member, and can be opened and closed with respect to the opening. A cover member that is attached to the light fixture, and the housing includes a support shaft that protrudes from both end surfaces at the center of gravity of the lighting fixture, and a hinge member that is provided at one end and supports one side of the cover member. And a locking member that is provided at the other end and locks the other side of the lid member with respect to the opening, and loosening the locking member allows the lid member to be the hinge member. And is spaced downward from the opening .

  With this configuration, the lid member is rotated with respect to the hinge member and separated downward from the opening, so that the center of gravity of the luminaire moves from a position perpendicular to the support shaft toward the hinge member. It rotates through the support shaft. As a result, the opening is greatly opened laterally and stabilized, so that the lamp can be easily replaced.

  Moreover, this invention contains what is the optical member which permeate | transmits the irradiation light of the said lamp in the said lighting fixture.

  With this configuration, the lid member can also be used as an optical member that transmits the irradiation light of the lamp, such as a shade, so there is no need to newly provide tightening means such as screwing in order to hold the opening sideways, The number of parts is not increased, and the lamp can be easily replaced.

  Furthermore, the present invention includes the above luminaire, wherein the lid member is a shade.

  With this configuration, the lid member also serves as a shade, so there is no need to provide tightening means such as screws for holding the opening sideways, and an increase in the number of parts can be prevented and lamp replacement work can be performed. Becomes easy.

  ADVANTAGE OF THE INVENTION According to this invention, in the lighting fixture which can be rotatably supported to support members, such as an arm, and can change an illumination range, a lighting fixture with easy lamp replacement | exchange can be provided.

  Hereinafter, lighting fixtures according to embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a side view showing an appearance of a lighting fixture according to an embodiment of the present invention, and FIG. 2 is a plan view (a), a side view (b), and a sectional view showing a schematic configuration of the lighting fixture according to the present embodiment. (C).

  As shown in FIGS. 1 and 2, the luminaire 1 of the present embodiment has a configuration including a housing 11, a lamp 12, and a shade 13.

  The housing | casing 11 is formed in the box shape which has the opening part 11a below. And it protrudes and is provided in the both sides | surfaces of the housing | casing 11 in the gravity center position of the lighting fixture 1, and it engages with the hole provided in the arm 21 edge part of the work bench 2 mentioned later, and the housing | casing 11 can be rotated now. A columnar support shaft 11b for supporting, a hinge 11d provided at one end 11c for supporting the shade 13, and a hinge 11d provided at the other end 11e for attaching the shade 13 to the housing 11 when the luminaire 1 is used. A locking member 11f such as a screw or a latching mechanism for locking with respect to each other is provided.

  The lamp 12 is a plurality of fluorescent lamps that are attached via a socket (not shown) provided in the housing 11, and emits irradiation light downward via the shade 13.

  The shade 13 is formed of a white, milky white, transparent, or translucent flat resin molded product that faces the opening 11a of the housing 11 and transmits the radiated light of the lamp 12, and is usually provided in the housing 11. The hinge 11d and the locking member 11f are fixed to the housing 11.

  When the lamp 12 is replaced, the locking member 11d is loosened, so that the hinge 11d can be pivoted downward to open the opening 11a of the housing 11 sideways.

  Next, the state at the time of use of the lighting fixture 1 comprised in this way is demonstrated. FIG. 3 is a diagram showing a state in which the lighting apparatus according to the present embodiment is attached to a work table.

  In FIG. 3, the support shaft 11 b of the lighting fixture 1 is fitted and attached to a hole provided at an end portion of an arm 21 extending upward from the work table 2. At this time, since the support shaft 11b is located at the center of gravity of the luminaire 1, the luminaire 1 is maintained in a substantially horizontal direction, and the irradiation light L from the lamp 12 is a work object placed on the work table 2. 22 is illuminated, and the worker M is in a state of performing work.

  Next, the replacement | exchange operation | movement of the lamp | ramp 12 is demonstrated in the lighting fixture 1 comprised in this way. 4A to 4C are explanatory diagrams for explaining the replacement operation of the lamp 12.

  FIG. 4A shows the state of the luminaire 1 before starting the lamp replacement, and the position of the center of gravity G of the luminaire 1 substantially coincides with the support shaft 11b. Thereby, the lighting fixture 1 is maintaining the substantially horizontal state.

  FIG. 4B shows a state where the locking member 11f of the housing 11 is loosened. By loosening the locking member 11f, the shade 13 rotates downward with the hinge 11d as a fulcrum, whereby the center of gravity G of the luminaire 1 is in the direction indicated by the arrow A, that is, one end 11c of the housing 11. Move in the direction of.

  FIG. 4C shows a state where the center of gravity G of the luminaire 1 has moved to one end 11 c of the housing 11. Thus, when the center of gravity G moves to one end 11c of the housing 11, a clockwise moment about the support shaft 11b acts on the housing 11, thereby opening the opening of the housing 11 11a opens widely in the horizontal direction.

  FIG. 5 is an explanatory diagram showing a state when the operator replaces the lamp 12 of the lighting fixture 1 on the work table.

  In FIG. 5, the worker M faces the opening 11 a that is widely opened in the housing 11, removes the lamp 12 housed in the housing 11 from the socket, and attaches a new lamp 12 to the socket.

  When the replacement of the lamp 12 is finished, the shade 13 is gripped, the opening 11a of the housing 11 is closed, and the locking member 11f is tightened. As a result, the center of gravity G moves to the position of the support shaft 11b, and the luminaire 1 returns to the normal horizontal state as shown in FIG.

  As described above, according to the luminaire according to the embodiment of the present invention, the lamp is housed inside a box-shaped housing having an opening below, and is attached to the opening so as to be openable and closable. Configured with a shade. The casing is provided at a support shaft that protrudes from both sides of the casing at the center of gravity of the lighting fixture, a hinge that is provided at one end and supports one side of the shade, and is provided at the other end. A locking member for locking the other side of the shade to the opening is provided.

  When replacing the lamp, by loosening the locking member, the shade rotates downward with the hinge as a fulcrum and is separated from the opening. As a result, the center of gravity of the luminaire moves to one end of the housing, and a clockwise moment about the support shaft acts on the housing, and the opening opens wide in the horizontal direction. Becomes easy.

  INDUSTRIAL APPLICABILITY The present invention is an illuminating device that can be rotatably supported on a support member such as an arm to change the illumination range, and has an effect of facilitating lamp replacement, and is useful for an illuminating device such as a work or study desk. It is.

The side view which shows the external appearance of the lighting fixture which concerns on embodiment of this invention (A) The top view which shows schematic structure of the lighting fixture which concerns on embodiment of this invention (b) The side view which shows schematic structure of the lighting fixture which concerns on embodiment of this invention (c) In embodiment of this invention Sectional drawing which shows schematic structure of the lighting fixture which concerns Schematic which shows the state which attached the lighting fixture which concerns on embodiment of this invention to the worktable. (A) Explanatory drawing which shows the state before starting the lamp replacement of the lighting fixture which concerns on embodiment of this invention (b) Explanatory drawing which shows the state which loosened the latching member of the lighting fixture which concerns on embodiment of this invention (C) Explanatory drawing which shows the state which the gravity center of the lighting fixture concerning embodiment of this invention moved to one edge part of a housing | casing Explanatory drawing which shows the state at the time of a worker replacing | exchanging the lamp | ramp of the lighting fixture which concerns on embodiment of this invention in a work table The figure which shows schematic structure of the conventional lighting fixture for worktables Explanatory drawing which shows the state of lamp replacement in the conventional work table lighting fixture

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lighting fixture 11 Housing | casing 11a Opening part 11b Support shaft 11c One edge part 11d Hinge 11e The other edge part of a housing | casing 11f Locking member 12 Lamp 13 Sade 2 Worktable 21 Arm

Claims (3)

A lamp is housed inside a box-shaped housing having an opening at the bottom, and is a lighting fixture that is rotatably supported with respect to a support member,
A lid member attached to the opening so as to be openable and closable;
The housing is
Support shafts projecting from both end faces at the center of gravity of the lighting fixture;
A hinge member provided at one end and supporting one side of the lid member;
A locking member that is provided at the other end and locks the other side of the lid member to the opening ,
The lighting fixture in which the lid member is rotated with respect to the hinge member by loosening the locking member and is spaced downward from the opening . The lighting fixture according to claim 1,
The lid member is
A lighting fixture that is an optical member that transmits the irradiation light of the lamp. The lighting fixture according to claim 1,
The lid member is
A luminaire that is a sede.

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