JPH08180710A - Luminaire - Google Patents

Abstract

PURPOSE: To surely keep the position of a fluorescent lamp while a smooth mounting of the lamp is carried out in the luminaire wherein a long-sized fluorescent lamp is housed in a substantially transparent cover having a lighting circuit built-in box. CONSTITUTION: A long-sized fluorescent lamp 1 is housed in a transparent cover 2 having a lighting circuit built-in box 3. At least two guide rails 4 are formed in a protruding manner along the longitudinal direction of the cover 2, on the inner surface of the cover 2. A socket 5 detachably made in the cover 2 is provided with a pin socket 5a to be fitted to an electrode pin 1a at the end of the lamp 1 and a groove fitted to the guide rails 4. A lead wire 6 for conduction is introduced in a lighting circuit built-in box 3 through the inside of the cover 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting fixture, and in particular, a long fluorescent lamp suitable as a temporary lighting fixture for construction and civil engineering is housed in a substantially transparent lighting cover, and a lighting circuit is built in the lighting cover. The present invention relates to a lighting device provided with a box.

[0002]

2. Description of the Related Art Various types of temporary lighting fixtures for construction and civil engineering have already been proposed.
The type that uses a long fluorescent lamp does not require the production of a special fluorescent lamp or a protective cover with a special shape,
There is an advantage that a commercially available long fluorescent lamp can be used as it is.

As a type of luminaire using a long fluorescent lamp of this type, there is a luminaire having a structure as shown in FIG. This has a configuration in which a long fluorescent lamp 1 is housed in a substantially transparent lighting cover 2 and a lighting circuit built-in box 3 is housed inside the lighting cover 2.

This type of lighting fixture has the advantage that no special fluorescent lamp or protective cover is required, of course.
Since it is long, it can be hung horizontally (horizontally suspended) in good balance by hanging a chain or the like on both ends thereof, and can also be hung almost vertically (vertically suspended) if necessary. Alternatively, by providing a holder such as a special clip, there is an advantage that it can be directly held on a required wall surface or a temporary frame on site.

In this lighting apparatus, since the fluorescent lamp 1 is housed inside the elongated lighting cover 2, sockets fitted to the electrode pins at both ends of the fluorescent lamp 1 must be housed inside the lighting cover 2. For the purpose of protection (collision with other objects, etc.), the lighting cover 2 must naturally have a structure in which a space is provided between the lighting cover 2 and the fluorescent lamp 1. It is supposed that the socket is used to keep it suspended in the air.

That is, the fluorescent lamp 1 covers the lighting cover 2 with the inner diameter (in the case of a cylindrical shape) or the inner surface dimension (in the case of a shape other than the cylindrical shape) of the lighting cover 2 being pushed in and the socket fitted with the fluorescent lamp 1 being pushed in. It is designed to be able to hold its position in a state of being floated in the air, apart from the inner surface of 2.

[0007]

In the case of the luminaire having such a structure, when the socket is fitted into the fluorescent lamp 1 and pushed into the lighting cover 2 from the end, the end of the socket is the inner surface of the lighting cover 2. There was a problem that it was difficult to insert it smoothly by sliding it on. Therefore, the fluorescent lamp 1
It takes a lot of time to replace it when it is cut off, and the inner surface of the lighting cover 2 may be scratched by the excessive pushing.

As a solution to such a problem, it is conceivable to make the size of the socket relatively smaller than the inner size of the lighting cover 2, but if such a measure is taken, the inside of the lighting cover 2 of the fluorescent lamp 1 is taken. The posture of the rotating direction is not stable, and it is always rattled in the construction and civil engineering work sites where external vibration is easily transmitted, and it is also weak against external impacts.
Moreover, it has been found that the fluorescent lamp 1 is damaged, and the durability (lifetime) is reduced.

In particular, when the posture of the fluorescent lamp 1 is displaced in the direction in which the fluorescent lamp 1 rotates inside the lighting cover 2, the lead wire extending from the socket at the end of the fluorescent lamp 1 is pulled in the winding direction of the fluorescent lamp 1 and the end of the lead wire is pulled. Unexpected pulling force acts on the part and affects the connection state. Further, since the box 3 with a built-in lighting circuit is housed inside the lighting cover 2 so as to be close to one end, there is a problem that the left-right balance is poor even if the box is long.

In view of the above problems of the prior art, the present invention provides a lighting fixture in which a long fluorescent lamp is housed in a substantially transparent lighting cover, and the lighting circuit has a box 3 with a built-in lighting circuit. An object of the present invention is to ensure that the position of the fluorescent lamp can be held while the fluorescent lamp can be mounted smoothly.

[0011]

In order to achieve the above-mentioned object, a lighting apparatus according to the present invention accommodates a long fluorescent lamp 1 in a substantially transparent lighting cover 2 and a lighting circuit for the lighting cover 2. A lighting fixture having a built-in box 3, wherein at least two guide rails 4 are formed on the inner surface of the lighting cover 2 so as to project along the longitudinal direction of the lighting cover 2.
Socket 5 configured to be removable from the lighting cover 2
Further comprises a pin socket 5a to be fitted to the electrode pin 1a at the end of the fluorescent lamp 1 and a fitting groove 5b to be fitted to the guide rail 4, and a lead wire 6 for energization is provided from the socket 5 to the socket 5. This means is introduced through the inside of the lighting cover 2 into the box 3 with a built-in lighting circuit.

In the present invention, it is more preferable to have the following constitution. The above-mentioned two guide rails 4 should be provided at the opposite position of 180 degrees. The lighting circuit built-in box 3 is detachably provided in the upper part of the center of the lighting cover 2, and the hanging means 7 is attached to the lighting circuit built-in box 3. At both ends of the lighting cover 2, a cover 8 for preventing falling is provided.
Be fitted. The fall prevention cover 8 is formed integrally with the socket 5.

In the present invention, the illuminating cover does not have to be completely transparent, and may be so-called translucent. The present invention is preferably implemented especially for construction and temporary construction of civil engineering, but the use thereof is not limited.

[0014]

According to the present invention, at least two guide rails 4 are formed on the inner surface of the lighting cover 2 along the longitudinal direction of the lighting cover 2 so as to project into the socket 5 of the fluorescent lamp 1.
By including the fitting groove 5b that fits in the guide rail 4, the maximum diameter to the outer diameter of the socket 5 can be made sufficiently smaller than the inner diameter (inner dimension) of the lighting cover 2, and the insertion can be smoothly performed. While being able to do so, the guide rail 4 can hold the position of the socket 5 in the engaged state.

In particular, by using at least two guide rails 4, it is possible to surely prevent the socket 5 from being displaced in the direction in which the socket 5 rotates inside the illumination cover 2. As a result, the fluorescent lamp 1 is reliably held in the lighting cover 2 in a state where the fluorescent lamp 1 floats with respect to the inner surface of the lighting cover 2 with a predetermined space therebetween and in a state without rotational displacement. Further, since the rotational displacement of the fluorescent lamp 1 can be prevented, an unexpected pulling force does not act on the lead wire 6.

Further, since the two guide rails 4 are present on the inner surface of the lighting cover 2 along the longitudinal direction, these can function as reinforcing ribs, and the strength of the long lighting cover 2 can be increased. Of. When the two guide rails 4 are provided at 180-degree opposing positions,
The fluorescent lamp 1 can be held more stably. Further, when the box 3 with a built-in lighting circuit is detachably provided in the upper part of the center of the lighting cover 2 and the hanging means 7 is attached to the box 3 with a built-in lighting circuit, it is a heavy load. When the box 3 with a built-in circuit is located approximately in the middle of the long fluorescent lamp 1 and is hung horizontally,
The posture is stable.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the lighting apparatus of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a perspective view of a main part of a lighting fixture of the present invention, which shows one implemented as a temporary lighting fixture for construction and civil engineering.

Reference numeral 1 denotes a commercially available long fluorescent lamp 1 which is housed in a transparent polycarbonate illumination cover 2. As shown in FIGS. 6 to 8, a box 3 with a built-in lighting circuit is detachably provided by screw connection with a holder 3a and a screw 3b at a substantially central upper portion of the illumination cover 2.
A chain having a hook as a suspending means 7 is attached to the box 3 with a built-in lighting circuit, and a power cord 9 is extended. The detachability of the lighting circuit built-in box 3 is as shown in FIGS. 7 and 8.

As shown in FIGS. 1, 2, 4, and 6,
On the inner surface of the lighting cover 2, two guide rails 4 are formed so as to project along the longitudinal direction of the lighting cover 2.
The two guide rails 4 are provided at a 180-degree opposing position and in a horizontal opposing position. Therefore,
Since the two guide rails 4 are present on the inner surface of the lighting cover 2 along the longitudinal direction, they function as reinforcing ribs and enhance the strength of the long lighting cover 2. The guide rail 4 need not be arranged 180 degrees apart,
Further, the guide rails 4 do not have to be horizontally opposed, and, of course, the number of guide rails 4 may be three or four.

FIG. 3 shows sockets for energizing the left and right sides of the fluorescent lamp 1, which are constructed so that they can be inserted into and removed from the lighting cover 2, and the electrode pins 1a at the end of the fluorescent lamp 1.
Pin socket 5a to be fitted to the guide rail 4 and
And two fitting grooves 5b that fit into the. The socket 5 has a maximum outer diameter that is relatively smaller than the inner diameter of the lighting cover 2 so as to allow a margin for insertion as compared with the conventional case. Then, the fluorescent lamp 1 is fitted into the socket 5 and then inserted along the guide rail 4 of the illumination cover 2.

As shown in each figure, the socket 5 has
A lead wire 6 for energization is attached to the lighting cover 2
Is introduced into the box 3 with a built-in lighting circuit through the upper part and the inside. As shown in FIG. 1, FIG. 4 and FIG. 5, etc., a falling prevention cover 8 is fitted to both ends of the lighting cover 2. The cover 8 may be integrated with the socket 5 in some cases.

[0022]

According to the present invention, a long fluorescent lamp is housed in a substantially transparent lighting cover, and the lighting cover is provided with a box with a built-in lighting circuit. The position of the fluorescent lamp can be held securely while it can be done smoothly, which improves the workability when installing and replacing the fluorescent lamp, and due to the rattling that occurred due to the loose fitting of the fluorescent lamp. This has brought about a remarkable effect of extending the life of the fluorescent lamp which has been short-lived.

Further, since at least two guide rails are present on the inner surface of the lighting cover along the longitudinal direction, these can function as reinforcing ribs, and the strength of the lighting cover is enhanced even though it is a long lighting cover. It also has advantages. Therefore, the building where vibration and external shock occur frequently,
It is extremely effective as a temporary lighting fixture for civil engineering. Since the means for solving the problem does not have a complicated structure, there is an advantage that the manufacturing cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part showing a socket insertion state of a lighting fixture of the present invention.

FIG. 2 is a perspective view of a main part showing a socket separated state of the lighting fixture of the present invention.

FIG. 3 is a perspective view of a socket of the lighting fixture of the present invention.

FIG. 4 is a partial vertical cross-sectional side view of a main part of the lighting fixture of the present invention.

FIG. 5 is a partial transverse cross-sectional view of the main parts of the lighting fixture of the present invention.

FIG. 6 is a vertical sectional side view of a lighting circuit built-in box of the lighting apparatus of the present invention.

FIG. 7 is a side view showing a suspended state of the lighting fixture of the present invention.

FIG. 8 is a side view showing a state in which the lighting circuit built-in box of the lighting apparatus of the present invention is attached and detached.

FIG. 9 is a side view showing a suspended state of a lighting fixture showing a conventional technique.

[Explanation of symbols]

 1 Fluorescent Lamp 2 Lighting Cover 3 Lighting Box with Built-in Circuit 4 Guide Rail 5 Socket 5b Fitting Groove 6 Lead Wire

Claims (5)

[Claims] 1. A lighting fixture in which a long fluorescent lamp 1 is housed in a substantially transparent lighting cover 2, and a box 3 with a built-in lighting circuit is provided in the lighting cover 2.
At least two guide rails 4 are formed on the inner surface of the lighting cover 2 so as to project along the longitudinal direction of the lighting cover 2, and the end portion of the fluorescent lamp 1 is inserted into a socket 5 configured to be removable in the lighting cover 2. A pin socket 5a to be fitted to the electrode pin 1a and a fitting groove 5b to be fitted to the guide rail 4, and a lead wire 6 for energization is passed from the socket 5 through the inside of the lighting cover 2 to Box 3 with built-in lighting circuit
Lighting equipment introduced in. 2. The luminaire according to claim 1, wherein the two guide rails 4 are provided at opposing positions of 180 degrees. 3. The lighting circuit built-in box 3 is detachably provided on the upper part of the center of the lighting cover 2, and the hanging means 7 is attached to the lighting circuit built-in box 3. lighting equipment. 4. The luminaire according to claim 1, wherein a falling prevention cover 8 is fitted to both ends of the lighting cover 2. 5. The luminaire according to claim 4, wherein the falling-off prevention cover 8 is formed integrally with the socket 5.