JP2001155529A - Lighting fixture and desk-top lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture capable of dispensing with a holding tool for holding the whole base of a single-ended fluorescent lamp, and minimizing a socket. SOLUTION: This lighting fitting is composed of a lamp fixture 5 having a lamp socket 13 for removably mounting a lamp 4, a support 3 for fitting the lamp fixture 5 on its point part, and a base 1 for fixing a basic end of the support 3 and placed on a desk or the like. The lamp fixture 5 is composed of an upper shaft 11, a lower shade 12, a reflector 15, the socket 13 or the like, and the lower shade 12 and the metallic reflector 15 are mounted to cover most of an opened lower surface of the upper shaft 11. The lamp socket 13 is rotatable on its rotary shaft.

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 more particularly to a desk lamp.

[0002]

2. Description of the Related Art As a conventional desk lamp according to the present invention, a lamp with a lamp socket to which a single-base fluorescent lamp is detachably mounted, a column to which the lamp is fitted at the tip, and a column And a base fixed on a desk or the like with its base end fixed. In this method, a single-base fluorescent lamp is arranged in a lower opening of a lamp by a holder for holding the entire base of the single-base fluorescent lamp and a lamp supporting spring for supporting a tip of the single-base fluorescent lamp.

[0003]

However, the following problems occur in the conventional example.

In the conventional example, since a holder for holding the entire base of the single-base fluorescent lamp is required, the size of the entire lamp is increased, and furthermore, the appearance of the lamp and thus the entire lighting fixture is impaired, resulting in design variations. Constrains the expansion of.

SUMMARY OF THE INVENTION The present invention has been made in view of all of the above problems, and has as its object to eliminate the need for a holder for holding the entire base of a single-base fluorescent lamp and to reduce the size of the socket. To provide equipment.

[0006]

According to the first aspect of the present invention, there is provided a lamp having an upper shade opened at a lower surface, and a lamp socket disposed in the opening of the upper shade. In a lighting fixture having a lamp detachably mounted on a lamp and a lamp socket for mounting a lamp pin of the lamp, the lamp socket is rotatably provided.

According to a second aspect of the present invention, in the lighting fixture of the first aspect, a lower shade is provided so as to cover a part of a lower opening of the upper shade, and the lamp socket is provided on the lower shade. And

According to the third aspect of the present invention, in the lighting apparatus according to the second aspect, the lamp socket is provided on a socket base provided on the lower shade so as to be rotatable about a rotation axis of the lamp socket. It is characterized by being able to.

According to the fourth aspect of the present invention, in the luminaire of the first aspect, the distance between the side surface of the lower shade and the end of the lamp socket is such that the distance between the side of the lower shade and the lamp is smaller when the lamp is mounted on the lamp. It is characterized in that it is larger than the state in which it is removed from the lamp.

According to a fifth aspect of the present invention, in the lighting apparatus according to any one of the first to fourth aspects, the lamp is a single-base fluorescent lamp.

According to the sixth aspect of the present invention, a lamp having an upper shade opened on the lower surface, a single-base fluorescent lamp detachably mounted on a lamp socket provided in the opening of the upper shade, In a desk lamp provided with a lamp socket for mounting a lamp pin and a support spring for supporting an end of a single base fluorescent lamp, the lamp socket is provided rotatably about its rotation axis and a side surface of a lower shade. The distance between the lamp socket and the end of the lamp socket is larger when the one-base fluorescent lamp is mounted on the lamp than when the one-base fluorescent lamp is removed from the lamp.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an overall perspective view of an embodiment according to the present invention, FIG. 2 is an exploded perspective view thereof, and FIG.
3A is a right side view thereof, FIG. 3B is a front view of an operation explanatory view thereof, FIG. 4 is a bottom view of the lamp thereof, and FIG. 5 is a single base fluorescent lamp 4 (hereinafter referred to as a lamp 4). 6) is a cross-sectional view of a main part of the lighting device in a state where the lamp 4 is detached from the lighting device. FIG. 8 is a partial cross-sectional view, and FIG. 9 is a cross-sectional side view of a main part of the lamp 5 in that state.

A description will be given below with reference to FIGS.

The desk lamp includes a lamp 5 having a lamp socket (hereinafter, referred to as a socket) 13 to which the lamp 4 is detachably mounted, a column 3 to which the lamp 5 is fitted at a tip portion thereof, The base 3 has a base end fixed and a base 1 mounted on a desk or the like.

The base 1 is provided with a power cord 9 having a power plug at its tip. Commercial power supplied through the power plug and the power cord 9 is a touch-type switch for blinking the lamp 4. 2 is supplied to the lighting circuit 27 provided in the base 1 through the base 2, and is connected to the socket 1 by an electric wire 40 inserted inside the arm 22.
3 and a lamp 4. The lamp 5 includes an upper shade 11, a lower shade 12, a reflection plate 15, a socket 13, and the like.
2 and a metal reflection plate 15 are provided. The lower shade 12 and the reflection plate 15 are positioned by ribs 32 provided on the inner wall surface of the upper shade 11 and substantially parallel to the short direction thereof. A hole 31 is provided substantially at the center of the back of the upper shade 11 (on the side of the support 3 in FIG. 2). Three screw receiving portions 38 and 39 are provided on the lower surface of the upper shade 11, and the two screws 17 are screwed into the screw receiving portion 38 through the through holes 33 provided in the lower shade 12, thereby lowering the lower shade 12 to the upper shade. 11 is fixedly arranged on the lower surface side. Further, by screwing one screw 18 into a screw receiving portion 39 through a through hole provided in the lamp supporting spring 16 and a through hole provided in the reflecting plate 15, the reflecting plate 15 and the lamp supporting spring 16 are attached to the lower surface of the upper shade 11. Fixed on the side.

The reflecting plate 15 reflects the light of the lamp 4 downward from the lamp 5. The socket 13 is installed on a socket table 34 provided on the lower shade 12.

The column 3 has an arm 22 through which an electric wire 40 can be inserted inserted therein, and is covered with a resin pipe so as to accommodate the arm 22. The upper half 10 of the resin pipe near the lamp 5 has a flexible pipe shape, and the lamp 5 can be freely moved by expanding and contracting the portion 10.

The base 1 is composed of a cover 30 having a bottom opening having a substantially semi-cylindrical projection 8 provided on a part thereof, and a bottom plate 25 provided so as to cover the bottom side of the cover 30. The bottom plate 25 is attached to the cover 30 through a screw hole provided in the bottom plate 25.
The screw 28 is screwed into a screw receiving portion (not shown) provided on the inner wall surface of the cover 30 to be fixed to the cover 30. The lighting block 27 and the switch 2 are fixed to the bottom plate 25 with screws via an insulating plate. An overturning switch 26 is provided so as to face through a hole provided in the bottom plate 25. An arm 22 is provided on the back side of the cover 30 (the side of the support 3 in FIG. 2).
A through hole 23 through which the lower end of the arm 22 penetrates is formed.
The threaded portion formed at the base end of the arm 22 is passed through the through hole 23, and a nut and a washer 43 are screwed into the threaded portion of the arm 22 inside the cover 30.
(And the support 3) are fixed to the base 1.

The switch 2 is provided so as to face through a hole 24 provided in the projection 8, and turns on and off the switch 2 to make the lamp 4 blink. The tipping switch 26 turns off the lamp 4 when the lighting fixture is tilted to such an extent that the tipping switch 26 is turned off.

At the tip of the arm 22, a mounting bracket 20 is mounted in a direction substantially parallel to the short direction of the upper shade 11. The mounting bracket 20 is formed by bending a substantially plate-shaped sheet metal in a substantially stepped manner, and a screw hole is provided substantially at the center of each of the two planes. A support fitting 14 is attached to a substantially center of an inner wall surface of the upper shade 11 by a screw 19 in a direction substantially parallel to a longitudinal direction of the upper shade 11. This support fitting 14
It is a substantially plate-shaped sheet metal, in which three screw holes are provided at substantially equal intervals, and the two screw holes at both ends connect the support fitting 14 to the upper shade 1.
1 for mounting on the inner wall surface.

Then, through a screw hole provided on the distal end side of the mounting bracket 20 and a screw hole provided substantially at the center of the support bracket 14, a screw receiving portion (not shown) provided on the inner wall surface of the upper shade 11 is provided. By screwing the screw 21, the mounting bracket 20 is
And the support fitting 14 are fixed to each other. Also, mounting bracket 2
The screw 21 is screwed into a screw receiving portion (not shown) provided on the inner wall surface near the column 3 of the upper shade 11 through the other screw hole of No. 0. Therefore, the tip of the mounting bracket 20 is connected to the upper shade 1.
1 can be fixed to the inner wall surface, and the lamp 5 can be stably fitted to the distal end of the column 3 via the mounting bracket 20 and the supporting bracket 14.

The socket 13 is provided with a rotating shaft 41,
A notch is provided on the lower surface of the lower shade 12 so that the socket 13 is exposed, and the socket 13 is turned in the direction of the arrow shown in FIG. Rotate freely.

Here, the state in which the lamp 4 is mounted on the lamp 5, that is, the lamp pin 7 of the lamp 4 is mounted on the socket 13, and the vicinity of the tip of the lamp 4 is a lamp supporting spring 16
The distance between the side surface of the lower shade 12 and the end of the socket 13 (that is, the end of the lamp base 6) in the state of being supported by L is defined as L1. Further, the side of the lower shade 12 and the end of the socket 13 in a state where the lamp 4 is removed from the lamp 5, that is, in a state where the socket 13 is rotated downward and the vicinity of the tip of the lamp 4 is separated from the lamp support spring 16. (Ie, the end of the lamp base 6) is L2. By making L2 smaller than L1, socket 13
When the lamp is rotated downward, the lamp base 6 is moved to the lower shade 12.
(Here, the corner of the lower shade 12), so that the lamp 4 moves in the direction in which the lamp pin 7 comes out of the socket 13, thereby facilitating lamp replacement. Further, when the socket 13 is rotated downward without the lamp 4 mounted, the protrusion of the socket 13 is reduced, so that the socket 13 can be seen in a well-fitted state. Also,
By pulling the electric wire 40 from the rear of the socket 13 in a direction substantially along the inner wall surface of the upper shade 11, the tension of the electric wire 40 is used to always lower the lamp mounting surface of the socket 13 when the lamp 4 is removed. Can be maintained in an easily visible direction, so that the mounting work of the lamp 4 is simplified without providing a special part such as a spring.

With the above-described configuration, the assembly is simple without using any special parts, the holder for holding the entire base of the single-base fluorescent lamp is not required, and the size of the socket can be reduced.

The structure of the lighting fixture is not limited to the above-described one as long as it is applicable to the present invention.

[0026]

According to the first to sixth aspects of the present invention, it is possible to provide a lighting fixture which does not require a holder for holding the entire base of a single base fluorescent lamp, and can reduce the size of a socket.

[Brief description of the drawings]

FIG. 1 shows a perspective view of a lighting device according to the present invention.

FIG. 2 shows an exploded perspective view of a lighting fixture according to the present invention.

3A is a front view of a lighting device according to the present invention, FIG.
(B) The right side view is shown.

FIG. 4 shows a front view of an operation explanatory view of the lighting fixture according to the present invention.

FIG. 5 shows a bottom view of the lighting fixture according to the present invention.

FIG. 6 is a cross-sectional view of a main part of a front part in a state where a lamp is mounted on a lighting fixture according to the present invention.

FIG. 7 is a cross-sectional side view of a main part of a lamp in a state where the lamp is mounted on a lighting device according to the present invention.

FIG. 8 is a cross-sectional view of a main part of the front of the lamp according to the present invention in a state where the lamp is detached from the lighting fixture.

FIG. 9 is a cross-sectional side view of a main part of the lamp in a state where the lamp is detached from the lighting apparatus according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base 3 Prop 4 Lamp 5 Lighting 13 Socket

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Claims (6)

[Claims] A lamp having an upper shade opened at a lower surface;
In a lighting fixture comprising a lamp detachably mounted on a lamp socket disposed in an opening of the upper shade, and a lamp socket for mounting a lamp pin of the lamp, the lamp socket is rotatably provided. Lighting equipment characterized by the above-mentioned. 2. The lighting apparatus according to claim 1, further comprising a lower shade so as to partially cover a lower surface opening of the upper shade, and wherein the lamp socket is provided on the lower shade. 3. The lighting apparatus according to claim 2, wherein the lamp socket is provided on a socket base provided on the lower shade, and is rotatable around a rotation axis of the lamp socket. 4. The distance between the side surface of the lower shade and the end of the lamp socket is larger when the lamp is mounted on the lamp than when the lamp is removed from the lamp. The lighting fixture according to claim 1, wherein 5. The lighting apparatus according to claim 1, wherein the lamp is a single-base fluorescent lamp. 6. A lamp having an upper shade opened at a lower surface;
A single base fluorescent lamp detachably mounted to a lamp socket disposed in the opening of the upper shade, a lamp socket for mounting a lamp pin of the lamp, and a support spring for supporting an end of the single base fluorescent lamp The lamp stand, wherein the lamp socket is provided rotatably about a rotation axis thereof, and a distance between a side surface of the lower shade and an end portion of the lamp socket is such that the single base fluorescent lamp is A desk lamp, wherein a state of being attached to the lamp is larger than a state in which the single-base fluorescent lamp is removed from the lamp.