JPH03280396A - Illumination fixture - Google Patents

Abstract

PURPOSE:To have easy check of the lamp retainer mounted state and enhance the safety by furnishing the body of an illuminating fixture with a retainer mount sensing switch which is actuated when mechanical detention of the retainer with the fixture body is disengaged, and thereby putting off an indicator lamp. CONSTITUTION:When a lamp retainer 21 at which lamps 22, 23 are mounted is fitted in a recess 5 in the body 1 of illuminating fixture, resilient detent pieces 32 on both sides are detained with a detaining hole 6 in the body, and also a connector piece 39 is inserted in connector 18 for generating connection. At the same time, detent piece 32 pushes a sensing switch 38 and the coil of a relay 40 is energized, so that an indicator lamp 14 is lighted through an opening/closing contact 43, which allows checking whether the retainer 21 is fitted to the body 1 certainly. In case detent piece 32 of the retainer 21 is set off from the detaining hole 6, by contrast, pressure on the sensing switch is disengaged to cause the indicator lamp to be put off, which permits knowing easily that the mounting is incorrect, and thus accident such as drop of the retainer can be precluded.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a lighting fixture such as a hanging fixture such as a pendant, in which a lamp holder equipped with a lamp can be freely attached to and detached from the fixture body. related to something.

(Prior art) In this type of conventional lighting equipment, a lamp holder that holds a lamp connected to a lamp socket is mechanically and removably attached to the equipment body, so that the lamp socket is electrically connected to the lighting circuit of the equipment body. A lighting fixture connected to the is proposed.

(Problems to be Solved by the Invention) In the above-mentioned conventional lighting equipment, when the lamp holder is mechanically attached to the equipment body, it is not easy to visually check whether the attachment is securely done, and this state There was a problem that if the lamp holder was left unattended without being noticed, the lamp holder could fall.

The present invention has been developed in view of the above-mentioned problems, and it is possible to confirm that the lamp holder is securely attached to the fixture body by lighting the indicator light, and also to confirm that the lamp holder is securely attached to the fixture body. , to provide a lighting fixture that can be easily confirmed by turning off the indicator light.

[Structure of the invention]

(Means for Solving the Problems) A lighting fixture of the present invention includes a fixture body, a lamp socket that is mechanically detachably attached to the fixture body and electrically connected to a lighting device of the fixture body. A lighting device comprising a holder and a lamp attached to the lamp holder and connected to the lamp socket, wherein the lamp holder includes an indicator light that is lit when the lamp holder is attached to the device body; The lamp holder mounting detection switch detects that the lamp holder is mounted and turns on the indicator light.

(Function) In the lighting fixture of the present invention, when the lamp holder is attached to the fixture body, the indicator light is turned on when the lamp holder is securely attached to the fixture body, and the lamp holder is attached to the fixture body. If the mechanical attachment becomes uncertain while the body is being attached, the indicator light turns off to notify that the attachment is uncertain.

(Example) The configuration of an embodiment of the present invention will be described with reference to the drawings.

In FIGS. 1 to 5, reference numeral 1 denotes a device main body, which is composed of a dish-shaped chassis portion 2 with an opening at the bottom and a cover portion 3 made of synthetic resin and having an approximately spherical arc surface. The outer surface of the portion 3 is formed with a reflective surface such as a white or silver diffuse reflection surface. A diametrically elongated lamp holder fitting recess 5 is formed in the reflecting surface 4. This fitting recess 5
A locking hole 6 is formed on the left and right sides of the center of both sides of the instrument body 1, and a pull switch fitting protrusion 7 is formed in the center of the inner bottom of the fitting recess 5 of the instrument body 1. An insertion hole 10 for a pull string connecting portion 9 of a pull switch 8 is formed in the lower surface of the protrusion 7 . Further, a substantially cylindrical night light installation part 11 is protruded from one side of the inner bottom surface of the fitting recess 5, and the lower surface of this night light installation part 11 is open. A translucent cover 12 is removably fitted. Further, a connector hole 13 is formed on the other side of the inner bottom surface of the fitting recess 5 .

Furthermore, an indicator light 14 such as a neon lamp is provided inside the appliance body 1, and a display hole 3M is formed through which the lighting of the indicator light 14 can be confirmed.

Further, a semicircular concave arc-shaped operating recess 15 is formed at the outer edge of both sides of the central portion of the lamp holder fitting recess 5 formed on the outer surface of the cover portion 3.

Further, a circuit board 17 of the lighting device 16 is fitted into the inner surface of the cover part 3, and the periphery of the circuit board 17 includes a plurality of locking claws (not shown) protruding from the inner surface of the cover part 3. It is fitted and locked. The pull switch 8 is attached to approximately the center of the lower surface of the circuit board 17, and a connector 18 is attached to one side of the pull switch 8 to one side of the circuit board 17.
Electronic components of the lighting device 16 are attached to the lower surface of the lighting device 7 . With the circuit board 17 fitted into the cover part 3, the lower part of the pull switch 8 is disposed in the pull switch fitting protrusion 7, and the pull switch is inserted through the lower surface insertion hole 10 of the fitting protrusion 7. 8 is pulled out, and a night light 19 such as a neon lamp connected to the circuit board 17 is disposed in the night light installation portion 11, and the lower surface of the connector 18 is exposed to the connector hole 13.

Further, a shield plate 20 is placed on the upper surface of the lighting device 16 with its lower insulation treated surface facing the upper surface of the circuit board 17.

Next, reference numeral 21 denotes a lamp holder that is fitted into the four fitting parts 5 of the instrument main body 1. This lamp holder 21 is formed into a substantially elongated shape, and the upper surface of both ends has annular shapes with different diameters. A holding arm 24.25 that removably holds the lamp 22.23 is formed to be inclined outwardly and downwardly;
A lamp socket portion 28. which connects the lamp bottle of the base portion 26.27 of the lamp 22.23 to this one holding arm 24. 29 are provided. Further, the other holding arm 25 is provided with a holding portion 30.31 for elastically holding the lamp 22.23. Further, this lamp holder 21 has a removal operation part 33 formed in a cut groove 34 in the center of both sides thereof, which has elastic locking pieces 32 formed on both sides to be releasably locked in the locking hole 6 of the instrument body 1. When the lamp holder 21 is fitted into the fitting recess 5 of the instrument main body 1, the locking pieces 32 are elastically inserted into the locking holes 6 at four positions, that is, on both sides of the removal operation part 33. The lamp holder 21 is attached to the instrument main body 1 by being engaged with the lamp holder 21, and the removal operation portion 33 faces the operation recess 15. When the removal operation portions 33 are pressed from both operation recesses 15 of the instrument main body 1, the locking pieces 32 of the lamp holder 21 are released from the locking holes 6, and the lamp holder 21 is released from the locking holes 6. can be removed from the fitting recess 5.

Further, an insertion hole 35 through which the pull switch fitting protrusion 7 is inserted is formed in the center of the lamp holder 21 on the upper and lower surfaces thereof.
An insertion hole 36 through which the holder 1 is inserted is formed through the upper and lower surfaces. Further, on the other side of the upper surface of the lamp holder 21, a connector piece 39 that is connected to the connector 18 is provided in a protruding manner. Then, this lamp holder 21 is attached to the cover part 3.
When the pull switch fitting protrusion 7 is fitted into the fitting recess 5 of the pull switch fitting recess 5, the pull switch fitting protrusion 7 is inserted into the insertion hole 35 and the drawstring is pulled out, and the translucent cover 12 of the night light installation part 11 is exposed to the insertion hole 36. Moreover, the connector piece 39 is adapted to be inserted and connected to the connector 18.

and a reflective surface 4 on the outer surface of the cover part 3 of the instrument body 1;
The lamp holder is formed in a substantially spherical arc shape as a whole, and is fitted into a fitting recess 5 that extends in the diametrical direction and is formed on the lower surface of the reflecting surface 4, which has a substantially spherical arc shape. The lower surface of the body 21 is also formed in a substantially spherical arc shape, and when the lamp holder 21 is fitted into the fitting recess 5 of the instrument main body 1, the substantially spherical arc surface of the reflective surface 4 of the instrument main body 1 is formed. Curved surface of the lower surface and lamp holder 2
The substantially spherical arc-shaped curved surface of the lower surface portion of 1 is formed on the curved surface of the road surface. Also, the lamp holder 2! The lower surface portion of is also formed as a reflective surface as necessary.

Reference numeral 38 denotes a detection switch, which is installed in the appliance main body 1 so as to face the inside of the locking hole 6 formed in the lamp holder fitting recess 5. The locking piece 3 of the lamp holder 21 is fitted into the
2 is engaged with the locking hole 6, the actuator 38M is pressed by the locking piece 32 and closed.

Next, the electric circuit will be explained with reference to FIG.

The detection switch 38 , the excitation coil 41 of the relay 40 , and the pull switch 8 are connected to the power supply circuit 45 , and the first and second contacts 81% gb of the pull switch 8 are connected to the power supply circuit 45 via the rectifier circuit 42 . and the third contact 8
C is connected to the power supply circuit 45 via the night light 19,
The fourth contact 8d is an off contact.

Further, the fifth contact 8e of the pull switch 8 is connected to the lighting device 16.
connected to the dimmer circuit. Further, the rectifier circuit 42
is connected to a lighting device 16, and the lamps 22 and 23 are connected to the output side of the inverter of this lighting device 16. Further, a detection circuit 44 having the indicator light 14 is connected to the opening/closing contact 43 of the relay 40 connected to the power supply circuit 45 .

Next, the operation of this embodiment will be explained.

The cap part 26 of the large-diameter lamp 22 is connected and held to the lamp socket part 28 on the lower side of one holding arm 24 of the lamp holder 21, and the base part 26 of the large-diameter lamp 22 is connected to the holding part 30 on the lower side of the other holding arm 25 from above. Fit and hold one holding arm 2
The base part 27 of the small-diameter lamp 23 is connected to the lamp socket part 29 of No. 4 and held therein, and the other holding arm 2
The lamp 2 is fitted and held in the upper holding part 31 of the lamp 5 from above.
3 is held in the lamp holder 21. and lamp 22.
When the lamp holder 21 holding the lamp holder 23 is fitted into the fitting recess 5 of the instrument main body 1, the elastic locking pieces 32 on both sides of the lamp holder 21 engage with the fitting recess 5 on both sides of the instrument main body 1. The lamp holder 21 is removably mechanically locked into locking holes 6 formed on both sides of the central part.
It is fitted and held in the fitting recess 5 of. At this time, the lamp holder 2
The pull switch fitting protrusion 7 is inserted into the insertion hole 35 at the center of the 1, the night light installation part 11 is inserted into the insertion hole 36,
The pull string of the pull switch 8 is pulled out to the insertion hole 35, and the transparent light bar 12 of the night light installation part 11 is exposed to the insertion hole 36, and the connector piece 39 is inserted and connected to the connector 18, and the lamp 22.23 is a lighting device! It is connected to the lighting circuit of the circuit board 17 of No. 6. In this state, the lower surface of the lamp holder 21 forms a curved surface similar to the reflective surface 4 of the appliance body 1 and the road surface.

The elastic locking pieces 32 on both sides of the lamp holder 21 are
When the locking pieces 32 are releasably mechanically locked into the locking holes 6 formed on both sides of the fitting recess 5 of the instrument body 1 at the center, the locking pieces 32 engage the actuator 381 of the detection switch 38.
is pressed, the excitation coil 41 of the relay 40 is energized, the opening/closing contact 43 is closed, the indicator light 14 is turned on, and the lamp holder 21 is securely fitted and held in the appliance body 1. can be confirmed. Further, when the first contact 81 and the fifth contact 8c of the pull switch 8 are closed, the lamp 22.23 is dimmed and lit, and when the second contact 8b is closed, the lamp 22.23 is turned on. When the night light 19 is turned on and the third contact 8C is closed, the night light 19 is turned on.

In addition, when replacing the lamps 22 and 23, when the removal operation pieces 33 on both sides of the lamp holder 21 are pressed from the operation recess 15, the elastic locking pieces 32 are deformed inward and engage the locking holes 6. are unlocked, respectively, and the lamp holder 2!
can be removed from the fitting recess 5 of the instrument body 1. Then, when the elastic locking piece 32 is released from the locking hole 6,
Actuator 38 of detection switch 38! is no longer suppressed, the excitation filter 41 of the relay 40 is de-energized, the switching contact 43 is released, and the indicator light 14 is turned off.

In addition, with the lamp holder 21 attached to the instrument main body,
When the elastic locking piece 32 was disengaged from the locking hole 6 and the mechanical connection was removed, and the suppression of the actuator 381 of the detection switch 38 was released, the indicator light 14 was turned off, making the attachment of the lamp holder 21 uncertain. This can be confirmed.

In this way, the lamp holder 21 can be separated from the appliance body 1 while the lamps 22, 23 are attached to the lamp holder 21. Then, this lamp holder 21 is attached to the lamp 22.2.
3 to a low position where it is easy to replace the lamps 22 and 23.

In the embodiment described above, when the elastic locking piece 32 engages with the locking hole 6 and presses the actuator 381 of the detection switch 38, the indicator light 14 is turned on, and the elastic locking piece 32 comes off from the locking hole 6 and is detected. Although the configuration has been described in which the indicator light 14 is turned off when the suppression of the actuator 381 of the switch 38 is released,
As shown in FIGS. 7 and 8, the actuator 38 of the detection switch 38 is located at the inner bottom of the fitting recess 5 of the instrument body 1!
When the lamp holder 21 is securely attached to the fitting recess 5, the actuator 38 of the detection switch 38 is pressed by the lamp holder 21, the indicator light 14 is turned on, and the lamp holder 21 is securely attached to the fitting recess 5. When the mounting is uncertain, the actuator 381 of the detection switch 38 may be released from the suppression by the lamp holder 21, and the indicator light 14 may be turned on.

Further, in the embodiment, the detection switch 38 includes a relay 40.
, and the indicator lamp 14 is connected to the excitation coil 41. However, as shown in FIG. 9, the relay 40 can be omitted by connecting the indicator lamp 14 in series with the detection switch 38.

〔Effect of the invention〕

According to the present invention, the lamp holder is securely attached to the appliance body because the detection switch is provided on the appliance body and turns off the indicator light when the mechanical engagement between the appliance body and the lamp holder is disengaged. You can check the status by lighting the indicator light, and if the mechanical installation of the lamp holder is uncertain,
This can be easily confirmed by lighting the indicator light, and the lamp holder will not be left unattended and dropped if the lamp holder is not attached properly, thereby increasing safety.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a lighting fixture showing an embodiment of the present invention, Fig. 2 is a partially cutaway side view of the same, and Fig. 3 is a partially cutaway side view of the same with the lamp holder removed. Figure 4 is a side view with the lamp holder removed, Figure 5 is a perspective view with the lamp holder removed.
FIG. 6 is a circuit diagram of the above lamp holder, FIG. 7 is a partially cutaway side view of a lighting fixture showing another embodiment of the present invention, and FIG. The figure is a partially cutaway side view with the lamp holder removed, and FIG. 9 is a circuit diagram of a lighting fixture showing another embodiment of the present invention. 1. Instrument body, 16. Lighting device, 14. Indicator light,
21...Lamp holder, 22.23...Lamp, 3I...Detection switch. March 2, 1990 Inventors Kei Shimizu and Tatsuro Nakajima

Claims (1)

[Claims] (1) An appliance body, a lamp holder having a lamp socket that is mechanically and detachably attached to the appliance body and electrically connected to the lighting device of the appliance body, and a lamp holder that is attached to the lamp holder and has a lamp socket. A lighting fixture that includes a lamp that is connected to a socket, and an indicator light that is turned on when the lamp holder is attached to the fixture body, and an indicator light that is turned on when the lamp holder is attached to the fixture body. A lighting device characterized by being equipped with a lamp holding rod attachment detection switch that turns on the lamp.