JPH11162235A - Luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a luminaire which enables a worker to smoothly replace a lamp even if the worker cannot see a lamp socket, by comprising a rotary lamp socket and a guide fixture for guiding a lamp pin of a straight-tube fluorescent lamp inside of a recess opened at the top. SOLUTION: A guide tool 4 has a side taper parts 13a and 13b and an end taper part 17a, and a lamp pin 11 is guided along these tapers, and is introduced into a pin insert part 3a of a rotary lamp socket 3. At this time, if two lamp pins 11 are arranged in vertical direction, the lamp pin 11 can be inserted into a slit 14 by rotating a straight tube fluorescent lamp 10. In addition, the guide tool 4 is provided with a hook part 154 and a cover part 16, thereby a position of the guide tool 4 is substantially determined so that the slit 14 and the pin insert part 3a of the rotary lamp socket 3 are matches with each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device capable of performing upward illumination such as indirect illumination.

[0002]

2. Description of the Related Art FIG. 9 shows a conventional example. That is, this lighting fixture has a fixture main body 72 having a recess 71 with an opening 70 facing upward, and a rotary lamp socket provided with a straight tube fluorescent lamp 73 provided inside the recess 71 and inserted and removed from the opening 70. 74. 75 is the instrument body 7
2 is a mounting tool.

[0003]

However, in this luminaire, since the lamp is replaced from above the luminaire, the operator cannot directly see the rotary lamp socket 74, as shown in FIG. The workability was poor because the lamp was replaced in the state. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a lighting device that can smoothly perform a lamp replacement operation even when an operator cannot directly see a lamp or a socket when replacing a lamp from above the device.

[0004]

According to a first aspect of the present invention, there is provided a lighting apparatus, comprising: an apparatus main body having an upwardly-facing concave portion; and a straight tube fluorescent lamp provided inside the upper concave portion and inserted and removed through the opening. A rotary lamp socket for rotating mounting,
A guide that is provided in the recess and guides the lamp pin of the straight tube fluorescent lamp to be inserted and removed from the opening to the rotary lamp socket.

According to the first aspect of the present invention, when the straight tube fluorescent lamp is inserted into the opening of the device body, the guide pin guides the lamp pin of the straight tube fluorescent lamp to the rotary lamp socket. Even in a place where is not visible, the straight tube fluorescent lamp can be smoothly inserted into and removed from the lamp socket. According to a second aspect of the present invention, in the lighting apparatus according to the first aspect, the guide member has a base supporting portion that supports a base portion of the straight tube fluorescent lamp, and a lamp pin positioning portion that guides a tip of the lamp pin. .

According to the lighting apparatus of the second aspect, the same effect as that of the first aspect is obtained. According to a third aspect of the present invention, in the lighting apparatus according to the first aspect, the guide member guides a bulb portion of the straight tube fluorescent lamp. According to the lighting apparatus of the third aspect, the same effect as that of the first aspect is obtained. According to a fourth aspect of the present invention, there is provided the lighting apparatus according to the third aspect, further comprising a second guide for guiding a tip of the lamp pin.

According to the lighting device of the fourth aspect, the same effect as that of the third aspect is obtained.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. That is, this lighting fixture has the fixture main body 1, the rotary lamp socket 3, and the guide 4. The device main body 1 has an opening 25 with a concave portion 5 facing upward. In the embodiment, the device main body 1
Is an upper and lower two-stage type in which a lower concave portion 6 of a downward opening 26 is disposed below the concave portion 5, and has a box shape having an H-shaped cross section as a whole. 7 is a central partition, 8 is an upper peripheral side wall, and 9 is a lower peripheral side wall.

The lamp socket 2 mounts a straight tube fluorescent lamp (not shown) which is provided inside the recess 6 and which is inserted and removed through a downward opening 26 thereof. For example, a pin for inserting a lamp pin in a lateral direction is provided. Same as the rotary lamp socket 3 having the insertion portion 2a, rotating the straight tube fluorescent lamp after insertion, and rotating the lamp pin 11 inserted into the pin insertion portion 2a to make electrical contact with the contact piece inside the socket. A rotary lamp socket is used and is mounted on the lower surface of the central partition wall 7.

The rotary lamp socket 3 is provided inside the recess 5 and rotatably mounts a straight fluorescent lamp 10 which is inserted and removed through an opening 25 thereof. As described above, the rotary lamp socket 3 inserts the lamp pin 11 into the pin insertion portion 3a in a laterally downward direction and rotates and mounts the lamp pin 11. When removing the lamp pin 11, the straight tube fluorescent lamp 10 is turned in the reverse procedure. The lamp pin 11 is moved in the horizontal direction. This rotary lamp socket 3 is mounted on the upper surface of the central partition wall 7.

A pair of guides 4 guides the lamp pins 11 of the straight tube fluorescent lamp 10 which are provided in the recess 5 and are inserted and removed from the opening 25 into the rotary lamp socket 3. Located in. The guide member 4 includes a base support 13 for supporting a base 12 including a lamp pin 11 of the straight tube fluorescent lamp 10, and a lamp pin 1.
Lamp pin positioning part 1 that guides the tip of 1 in the axial direction
Seven. The base support portion 13 includes a pair of inverted C-shaped side taper portions 13 that guide the side surfaces of the lamp pin 11.
a and 13b, and a slit 14 provided at a lower end portion close to each other. The lamp pin positioning portion 17 guides the tip of the lamp pin 11 and
End taper portion 17 that regulates the position of lamp axis direction 0
a. The end taper portion 17a is inclined so that the lower end side approaches the opposing direction of the pair of guide members 4, and both sides are integrally connected to the side taper portions 13a and 13b. A hook 15 is provided at the upper end of the end taper 17a. The slit 14 is aligned with the portion 3a. Further, a pair of arc-shaped plate-shaped covering portions 16 covering the upper end portion of the rotary lamp socket 3 extend from the lower end portions of the side taper portions 13a and 13b. The covering portion 16 has a concave curved surface so as to be in crown with the upper surface of the rotary lamp socket 3.

A hook 15 and a cover 16 are attached to the guide 4.
, The relative positions of the slit 14 and the pin insertion portion 3a of the lamp pin 11 are substantially determined. Here, the upper end of the end taper portion 17a of the guide tool 4 in a state where the pair of guide tools 4 is mounted, that is, the hook portion 15 is hooked on the end wall of the appliance body 1, and the cover portion 16 is covered on the rotary lamp socket 3. The distance Ld between the parts is Ld = La + 30 mm,
About. La is the distance between the tips of the lamp pins 11 in the axial direction of the straight fluorescent lamp 10. Guide tool 4
The width Dc between the upper end portions of the side tapered portions 13a and 13b shown in FIG. 2 is about Dc = D + 50 mm. D is the outer diameter of the straight tube fluorescent lamp 10. The distance Lb between the facing surfaces of the covering portions 16 of the pair of guides 4 is Lb = L + 2 mm,
It is about. L is the lamp pin 11 of the straight tube fluorescent lamp 10
This is the distance between the end faces of the base that is the base of the base. Slit 14
Is approximately Db = Da + 2 mm. Da is the outer diameter of the lamp pin 11. The distance Lc between the lower end portions of the end taper portions 17a of the pair of guide members 4 is Lc = La
+2 mm or so.

As described above, the guide member 4 has the side taper portions 13a and 13b and the end taper portion 17a, and the lamp pin 11 is guided along these tapers and guided to the pin insertion portion 3a of the rotary lamp socket 3. At this time, if the two lamp pins 11 are not aligned in the vertical direction, the straight tube fluorescent lamp 10 rotates to
Into which the lamp pin 11 can be inserted. Guide tool 4
The slit 14 and the pin insertion portion 3a of the rotary lamp socket 3 are provided by providing a hook portion 15 and a cover portion 16.
The position of the guide member 4 is substantially determined so that the positions are aligned.

According to the first embodiment, when the straight tube fluorescent lamp 10 is inserted into the opening of the fixture main body 1, the guide 4
As a result, the lamp pin 11 of the straight tube fluorescent lamp 10 is guided to the rotary lamp socket 3, so that the straight tube fluorescent lamp 10 can be smoothly inserted into and removed from the lamp socket 3 even in a place where the lamp socket 3 is not directly visible. it can.

The base support 13 of the guide 4 may be configured to guide the peripheral surface of the base 12. A second embodiment of the present invention will be described with reference to FIG. That is, in this lighting fixture, the guide member 4 of the first embodiment is fixed to the fixture main body 1, and the joining piece 18 is replaced with the side taper portions 13 a and 13 b and the end taper portion 1 instead of the hook 15.
The joining piece 18 is formed by folding back at the upper end of 7a, and is attached to the inner surface of the instrument body 1 by attaching means. The covering part 16 is also deleted.

The other parts are the same as in the first embodiment.
A third embodiment of the present invention will be described with reference to FIG. That is, this lighting fixture is different from the first embodiment in that
The guide member 4 is made of rubber. The slit 14 is formed to be long in the vertical direction, and the slit width is formed to be smaller than the outer diameter of the lamp pin 11.

When the straight tube fluorescent lamp 10 is attached or detached, the lamp pins 11 are previously inserted into the slits 14 of the pair of guide members 4 located at both ends thereof, and are temporarily held. Hook part 1
5 is hooked on the end wall of the appliance body 1 and the covering portion 16 is placed on the rotary lamp socket 3, the guide 4 is positioned on the lamp socket 3, and the pin insertion portion 3a and the slit 14 of the rotary lamp socket 3 are provided. Match. When the straight tube fluorescent lamp 10 is pushed downward in this state, the lamp pin 11 is inserted into the pin insertion portion 3a.

The other points are the same as in the first embodiment. A fourth embodiment of the present invention will be described with reference to FIGS. That is, in this lighting fixture, in the first embodiment, the guide member 4a guides the bulb portion 10a of the straight tube fluorescent lamp 10, and guides the straight tube fluorescent lamp 10 to the central axis position of the fixture body 1. , And guides the lamp pin 11 to the pin insertion portion 3a. In the embodiment, the guide member 4a forms a lamp receiving portion 20 by bending a metal or resin elastic plate into a U-shape, and inclines both ends outward to form side taper portions 13a ', 13a.
b 'is formed, and hook portions 15a are provided at both end edges thereof. The wide dimension on the upper end side between the side taper portions 13a 'and 13b' is substantially the same as the width of the upper peripheral side wall 8 of the instrument body 1, and the smaller dimension Dd between the side taper portions 13a 'and 13b' is As shown in FIG.
Is slightly smaller than the outer diameter Da. Guide part 4a
By arranging at both ends of the straight tube fluorescent lamp 10, linearity can be obtained.

The hook 15a of the guide 4a is connected to the instrument body 1
, The straight tube fluorescent lamp 10 is inserted through the opening 25, and the bulb portion 10 a is attached to the side taper portion 13.
When guided along a ′, 13b ′, the side taper portion 13
Since the bulb portion 10a is supported at the position of the imaginary line in FIG. 6 at the lower end portions of a 'and 13b', the bulb portion 10a is rotated at this time to guide the lamp pin 11 to the pin introduction portion 3a. Then, the valve portion 10a is pushed downward to make the side taper portion 13
a ', 13b' are spread out and moved downward to move the lamp pin 11 into the inside of the pin introduction part 3a, and then, when the bulb part 10a is rotated, the lamp pin 11 comes into contact with the contact piece in the rotary lamp socket 3. To be in the mounted state.

The rest is the same as in the first embodiment.
A fifth embodiment of the present invention will be described with reference to FIG. That is, this lighting fixture is different from the fourth embodiment in that
The guide member 4b is formed to be long in the lamp axis direction and has a hollow central portion. Others are the same as the fourth embodiment. A sixth embodiment of the present invention will be described with reference to FIG. That is, this lighting fixture has a second guide 17 'for guiding the tip of the lamp pin in the fourth embodiment. In the embodiment, the second
As in the end taper portion of the first embodiment, the guide member 17 'of FIG.
End taper portion 17 for guiding the pin insertion portion 3a
a '. The end taper portion 17a '
And the side taper portions 13a 'and 13b' are integrally connected by a hook portion 15b at a distance in the lamp axis direction. By providing the guide member 4a with the end taper portion 17a 'of the second guide member 17' in this way, the lamp axis direction of the straight tube fluorescent lamp 10 is also restricted, and the guide tube 4a is inserted into the pin insertion portion 3a of the rotary lamp socket 2. It is possible to make it easier.

The other points are the same as in the fourth embodiment.

[0022]

According to the lighting apparatus of the first aspect, when the straight tube fluorescent lamp is inserted into the opening of the apparatus main body, the guide pin guides the lamp pin of the straight tube fluorescent lamp to the rotary lamp socket. Even in a place where the lamp socket is not visible, the straight tube fluorescent lamp can be smoothly inserted into and removed from the lamp socket.

According to the lighting apparatus of the second aspect, the same effects as those of the first aspect are obtained. According to the lighting apparatus of the third aspect, the same effect as that of the first aspect is obtained. According to the lighting fixture of the fourth aspect, the same effect as that of the third aspect is obtained.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view with a part cut away according to a first embodiment of the present invention.

FIG. 2 is a partial cross-sectional view showing the inside of an upper recess of the instrument body.

FIG. 3 is a partially cutaway perspective view of the second embodiment.

FIG. 4 is a partially exploded perspective view of a third embodiment.

FIG. 5 is a partially cutaway exploded perspective view of a fourth embodiment.

FIG. 6 is a partial cross-sectional view in a state of use.

FIG. 7 is a perspective view of a guide tool according to a fifth embodiment.

FIG. 8 is a perspective view of a guide tool according to a sixth embodiment.

FIG. 9 is a perspective view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Instrument main body 3 Rotary lamp socket 4 Guide tool 5 Recess 10 Straight tube fluorescent lamp 10a Bubble part 11 Lamp pin 12 Base part 13 Base support part 14 Slit 15 Hook part 17 Lamp pin positioning part 17 '2nd guide tool 25 opening

Claims (4)

[Claims] 1. An appliance body having a recess with an opening facing upward, a rotary lamp socket provided inside the recess and rotatably mounting a straight tube fluorescent lamp inserted and removed from the opening; A lighting device comprising: a guide provided to guide a lamp pin of the straight tube fluorescent lamp to be inserted into and removed from the opening to the rotary lamp socket. 2. The luminaire according to claim 1, wherein the guide has a base supporting section for supporting a base of the straight tube fluorescent lamp, and a lamp pin positioning section for guiding a tip of the lamp pin. 3. The lighting device according to claim 1, wherein the guide member guides a bulb portion of the straight tube fluorescent lamp. 4. A second guide for guiding a tip of the lamp pin.
4. The lighting fixture according to claim 3, further comprising a guide member.