JPH0487280A - Straight tube fluorescent lamp socket - Google Patents

Abstract

PURPOSE:To improve the fitting/removing operability of a straight tube fluorescent lamp while in use as an illumination apparatus and the safety when the straight tube fluorescent lamp is removed by providing a vertically movable moving block and a fixed block fitted to the moving block while a body is excited upward. CONSTITUTION:When an action section 22 is depressed against the spring force of a push-up spring 19 while a straight tube fluorescent lamp is fitted, the moving contact piece section 26 of a conducting metal 18 is separated from the fixed contact piece section 16 of a lead wire terminal 12, and the power feed to the straight tube fluorescent lamp is cut off. The straight tube fluorescent lamp is supported on the upper face of a terminal section 8 serving as a lamp support section, and the lamp pin 29 of the straight tube fluorescent lamp is removed from the lamp pin holding section 24 of the conducting metal 18. The straight tube fluorescent lamp can be removed by merely lifting it. The fitting/ removing operability of the straight tube fluorescent lamp while in use as an illumination apparatus and the safety when the straight tube fluorescent lamp is removed can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a straight tube fluorescent lamp socket, and particularly to a straight tube fluorescent lamp socket whose lamp can be easily removed.

[Prior Art] Straight fluorescent lamp sockets used in lighting equipment that use straight fluorescent lamps as lamps are manufactured by inserting lamp pins into each base of the straight fluorescent lamp to improve the elasticity of the contact fittings of the straight fluorescent lamp socket. The holding force allows the connection to be held. In such a straight fluorescent lamp socket, when removing the straight fluorescent lamp from the straight fluorescent lamp socket, as shown in FIG. Straight fluorescent lamp 49
, and pull the straight fluorescent lamp 49 from the straight fluorescent lamp socket 51 against the elastic holding force of the contact fitting of the straight fluorescent lamp socket 51.
It is common to do this in a way that brings out the

[Problem to be solved by the invention]

In a lighting fixture using a conventional straight fluorescent lamp socket, as shown in FIG. If one base is disconnected from the straight fluorescent lamp socket 51 while the other base remains electrically connected to the straight fluorescent lamp socket 51, your hand may come into contact with the lamp pin and cause an electric shock. There is a fear. Also, straight tube fluorescent lamp 4
Since the glass tube portion of the straight fluorescent lamp 49 is grasped by hand when attaching and detaching the lamp 9, there was a feeling of anxiety that the glass tube portion would break. Furthermore, depending on the structure of the lighting equipment, it may be difficult to grasp the straight fluorescent lamp by hand, resulting in poor operability when removing it.

The present invention has been made in view of the above-mentioned background, and its purpose is to improve the operability of attaching and detaching a straight tube fluorescent lamp when used as a lighting equipment, and to improve safety when removing the straight tube fluorescent lamp. Our goal is to provide high quality straight tube fluorescent light sockets.

[Means for Solving the Problems] A straight tube fluorescent lamp socket according to the present invention has lamp pin insertion grooves formed in the body into which a pair of lamp pins of the straight tube fluorescent lamp are respectively inserted, and a lamp pin holding portion for holding the lamp pins. In the straight tube fluorescent lamp socket, a conductive metal fitting is inserted into the body facing the lamp pin insertion groove,
A movable block that is movable up and down in an upwardly biased state containing the body on either side, and a fixed block to which the movable block of Ritoko is attached, and a movable block is provided between the fixed block and the movable block. A push-up spring that urges upward is interposed, and this push-up spring has a spring constant larger than that of the conductive metal fitting so that it is hardly compressed when the lamp pin is fitted into the lamp pin holding part of the conductive metal fitting. A lamp support part is provided that protrudes upward to maintain the position of the straight tube fluorescent lamp by coming into contact with the straight tube fluorescent lamp.

〔Example〕

1 to 5 show embodiments of the present invention, which will be explained below based on the drawings.

This straight tube fluorescent lamp socket 1 has a fixed block 2 which is a substantially box-shaped outer shell with an opening at the bottom, and a movable bronch 3 on which terminals etc. are arranged is placed in a bag so as to be movable up and down. The opening is closed with a lid 4 made of a plate-shaped insulator, and a lead wire 5 is connected to it.

The fixed block 2 has a plastic box-shaped body 6 as its main component. The body 6 is composed of a lamp mounting part 7 into which a straight tube fluorescent lamp is mounted, and a terminal part 8 into which a terminal to which the lead wire 5 is connected is inserted. In the lamp mounting part 7 of the body 6, a pair of lamp pin insertion grooves 9 are formed in parallel to the upper surface and front surface of the lamp mounting part 7, extending to approximately the center of the front surface, and between the pair of lamp pin insertion grooves 9. is formed on the movable bronc 3 and the base block 3
A rectangular operating section insertion hole 10 is formed into which an operating section for performing a downward movement operation is inserted.

The terminal portion 8 of the body 6 is formed with a lead wire insertion groove 11 that communicates with the bottom opening and opens at the front, and lead wire terminals 12 are formed on the opposing inner surfaces to correspond to the two lead wires 5. A pair of mounting portions 13 are protruded from the sides of the bottom surface, and a mounting hole 14 is provided for mounting the straight fluorescent lamp socket 1 to a lighting equipment. It is a lamp support part that comes into contact with and supports the lamp. As shown in FIG. 3, the lead wire terminal 12 has a lead wire connecting portion 1 for connecting the lead cotton 5 near the lower end.
5, while the upper end thereof is bent and protruded inward to form a fixed contact piece 16 for opening and closing electrical connection with the movable block 3.

The movable bronc 3 includes an insulating base 17, a conductive metal fitting 18 that is attached to the base 17 in an insulated state and connects and holds a lamp pin 29 of a straight tube fluorescent lamp, and an upper end connected to the base 17.
The push-up spring 19, which is made of a compression coil spring fixed to the movable bronc 3 and applies an upward biasing force to the movable bronch 3, is provided. The base 17 has a substantially T-shaped base portion 20 that is long in the horizontal direction and a shaft portion 21 that is long in the vertical direction. The tip of the shaft portion 21 is slightly tapered to form an operating portion 22 which is inserted into the operating portion insertion hole 10 of the body 6 and whose tip protrudes outside the body 6. An inclined surface that gradually becomes thicker from the lower end of the operating portion 22 of the shaft portion 21 serves as a locking surface 23 that locks the movable prong 3, which is urged upward by the push-up spring 19, to the fixed block 2. The pair of conductive metal fittings 18 are attached to the base 17 in a substantially symmetrical manner, and the lamp pins have a lamp pin holding part 24 near the tip thereof that holds the lamp pin 29 in contact with the shaft part 21 of the base 17 interposed therebetween as an insulator. The holding piece 25 and a movable contact piece 26 that protrudes from the front surface of the base 20 of the base 17 and comes into contact with the fixed contact piece 16 of the lead wire terminal 12 are integrally formed. Conductive metal fittings 18
The movable contact piece portion 26 is connected to the operating portion 22 of the movable blower 3.
When not pushed in, the lead wire terminal 12 of the fixed block 2 contacts the fixed contact piece 6 and is electrically connected, and when the operating section 22 of the movable block 3 is pushed in, the lead wire terminal of the fixed block 2 12 fixed contact pieces 16
The fixed contact piece 16 of the lead wire terminal 12 and the push-up spring 19 function as an interlock switch. The push-up spring 19 has a larger spring constant than the conductive metal fitting 18, so that it is hardly compressed even when the lamp pin 29 pushes the S electric metal fitting 18 open and fits into the lamp pin holding part 24 when a straight tube fluorescent lamp is attached. . This straight tube fluorescent lamp socket 1 has a mounting screw 24 inserted into the mounting screw insertion hole 14 of the mounting block 13.
is attached to the instrument body 28 by screwing it into the instrument body 28.

In this straight tube fluorescent lamp socket 1, when the operating part 22 is pushed down against the spring force of the push-up spring 19 from the straight tube fluorescent lamp installed state shown in FIG.
The movable contact piece 26 of 8 is separated from the fixed contact piece 16 of the lead wire terminal 12, and power supply to the straight tube fluorescent lamp is cut off, and the straight tube fluorescent lamp is supported on the upper surface of the terminal portion serving as a lamp support portion. The lamp pin 29 of the straight tube fluorescent lamp comes off from the lamp pin holding part 24 of the conductive metal fitting 18, and the straight tube fluorescent lamp can be removed by simply lifting it, and the straight tube fluorescent lamp has good operability in attaching and detaching when used as a lighting fixture. Therefore, it is highly safe when removing straight tube fluorescent lamps.

6 to 10 show other embodiments of the present invention. This straight tube fluorescent lamp 30 is composed of a movable block 31 that is movable up and down in an upwardly biased state, and a fixed block 32 to which the movable block 31 is attached.

The movable block 31 includes a socket portion 33 which is constructed as an intermediary between a conventional straight tube fluorescent lamp socket, and this socket.

A mounting shaft 34 for attaching the torsion part 33 to the fixing block 32, a push-up spring 35 through which the mounting shaft 34 is inserted and interposed between the fixing prong 32 and the socket part 33 to urge the socket part 33 upward. It is composed of Socket part 33
The lamp includes a plastic body 36 and a conductive metal fitting 37 which is placed inside the body 36 and connects and holds a lamp pin 50 of a straight tube fluorescent lamp 49. The body 36 has a pair of lamp pin insertion grooves 38, an operating portion 39 formed in a recess at the upper end, and mounting portions 40 projecting laterally at the lower ends of both sides. The conductive metal fitting 37 has a lamp pin holding part 41 for connecting and holding a lamp pin 50 of a straight tube fluorescent lamp 49 near the upper end, and this lamp pin holding part 41 faces the lamp pin insertion groove 38, and a lead wire connection near the lower end. A lead wire 43 is connected to the portion 42 and the body 3
It is derived outside of 6. The push-up spring 3.5 is connected to the conductive metal fitting 3
The spring constant is larger than that of 7, so that the lamp pin 50 is hardly compressed even when the lamp pin 50 pushes open the conductive metal fitting 37 and fits into the lamp pin holding part 41 when the straight fluorescent lamp 49 is attached.

In the fixing device 32, on the substrate 44 consisting of the instrument body,
A pair of switches 45 to which lead wires 43 are connected respectively
A switch 45 is attached directly below the socket 33, and an internal lead wire 46 is connected to this switch 45. The switch 45 is provided with a push button 47, and the socket portion 3
3 is pressed down, the socket part 33 depresses the push button 47 of the switch 45, and functions as an interface or kusuinochi that cuts off the power supply to the straight tube fluorescent lamp 49.

A lamp support portion 48 is provided on the substrate 44 and projects upwardly so as to come into contact with the straight tube fluorescent lamp 49 mounted in the straight tube fluorescent lamp socket 30 and maintain the position of the straight tube fluorescent lamp 49.

In this straight tube fluorescent lamp socket 30, when the operating portion 39 is pushed down against the spring force of the push-up spring 35 from the straight tube fluorescent lamp installed state shown in FIGS. 7 and 8, as shown in FIGS. 9 and 10. As shown in the figure, the socket part 33 of the straight fluorescent lamp 49 is pushed down while maintaining its position on the lamp support part 48, and the switch 45 is operated to cut off the power supply to the straight tube fluorescent lamp 49, and the straight tube fluorescent lamp 49 is The lamp pin 50 of the fluorescent lamp 49 comes off from the lamp pin holding part 41 of the conductive metal fitting 37, and the straight tube fluorescent lamp 49 can be removed by simply lifting it, and the straight tube fluorescent lamp can be easily attached and detached when used as a lighting fixture. , High safety when removing straight tube fluorescent lamps.

Further, in this straight tube fluorescent lamp socket 30, a general-purpose switch can be used as the switch 45 which has an interlock switch function.

Note that the board 44 may serve as the main body of the instrument or may be a separate component.

〔Effect of the invention〕

Since the present invention is configured as described above, it provides a straight tube fluorescent lamp socket that has good operability for attaching and detaching the straight tube fluorescent lamp when used as a lighting equipment, and has high safety when removing the straight tube fluorescent lamp. be able to.

[Brief explanation of drawings]

1 to 5 show embodiments of the present invention, in which FIG. 1 is a perspective view, FIG. 2 is an exploded perspective view, FIG. 3 is a perspective view with main parts of the fixed block cut away, and FIG. 4 is a cross-sectional front view of the straight tube fluorescent lamp installed, and FIG. 5 is a cross-sectional front view of the straight tube fluorescent lamp removed. 6 to 10 show other embodiments of the present invention, in which FIG. 6 is a perspective view, FIG. 7 is a cross-sectional front view of a straight tube fluorescent lamp installed, and FIG. 8 is a side view. 9 is a cross-sectional front view of the straight tube fluorescent lamp in a state in which it is removed, and FIG. 10 is a side view of the same. FIG. 11 is a side view of a conventional example of the present invention in use. 1-Straight fluorescent lamp socket, 2-Fixed block, 3-Movable block, 4-Lamp pin holding section, 5-Lamp pin insertion groove, 6-Protrusion, 7-Lamp removal tool, 8-Operation section, 9 Extrusion section, 10- Mounting shaft, 11 - mounting hole, 12 - straight tube fluorescent lamp, 13 - lamp pin, 14 - fixture body.

Claims (1)

[Claims] (1) A lamp pin insertion groove is formed in the body into which a pair of lamp pins of a straight tube fluorescent lamp are respectively inserted, and a conductive metal fitting provided with a lamp pin holding part for holding the lamp pin is housed in the body facing the lamp pin insertion groove. The straight fluorescent lamp socket is equipped with a movable block that is movable up and down in an upwardly biased state that includes the body on either side, and a fixed block to which the movable block is attached. A push-up spring that biases the movable block upward is interposed between the movable block and the push-up spring has a spring constant larger than that of the conductive metal fitting so that it is hardly compressed when the lamp pin is fitted into the lamp pin holding portion of the conductive metal fitting. A straight tube fluorescent lamp socket characterized in that the fixing block has a lamp support portion projecting upwardly from the fixed block to maintain the position of the straight tube fluorescent lamp by coming into contact with the installed straight tube fluorescent lamp.