JP2002343516A - Lamp socket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lamp socket enabled to safely mount and dismount a lamp. SOLUTION: The lamp socket comprises a socket main body 1 having an opening 4, and a lamp pin insertion groove 5 ranging from the outside rim to the opening 4 at front side, a rotor 2, rotation freely located at the opening 4, forming a guiding groove 12 guiding lamp pins 11 inserted into the lamp pin insertion groove 5 at the front surface in the radial direction, and a conductive contact piece 3, mounted inside the socket main body 1, to which, the lamp pins 11 are made to contact by rotating the lamp pins 11 inserted into the guiding groove 12 together with the rotor 2. The guiding groove 12 has a narrow part 15, narrower than the outer diameter of the lamp pin 11, into which, the lamp pin 11 can be inserted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lamp socket applicable to a straight tube lamp such as a straight tube fluorescent lamp.

[0002]

2. Description of the Related Art As shown in FIGS. 5 to 8, a conventional scissor-type fluorescent lamp socket (for example, Japanese Utility Model Laid-Open Publication No. 50-10695, Japanese Unexamined Patent Publication No. 8-167459) has an opening 50 from the outer edge. A socket body 54 including a cover 52 and a body 53 having a lamp pin insertion groove 51 connected to the opening 50 on the front surface, and a lamp pin insertion groove 51 rotatably provided in the opening 50.
A rotor 58 having a guide groove 57 formed in the front surface in a diametrical direction for guiding a lamp pin 56 of a fluorescent lamp 55 inserted into the rotor 58.
And a conductive contact piece 59 that contacts the lamp pin 56 by rotating the lamp pin 56 provided in the socket body 54 and inserted into the guide groove 57 together with the rotor 58. The rotator 58 is a support column 6 of the body 53.
It is rotatably supported at zero. A pair of conductive contact pieces 59
Has a terminal portion composed of, for example, a quick connection terminal 61,
8 is positioned on the body 53 so as to be disposed on both sides.

As shown in FIG. 8, the straight tube fluorescent lamp 55 is made horizontal, the lamp pins 56 at both ends are brought closer to the lamp sockets P1 and P2 of the lighting fixture P, and the lamp pins 56 are inserted into the lamp pin insertion grooves 51 and rotated. The fluorescent lamp 55 is rotated by approximately 90 degrees by fitting it into the guide groove 57 of the child 58. The rotation of the lamp pin 56 causes the lamp pin 56 to move to the conductive contact piece 5.
9, the fluorescent lamp 55 is turned on by being supplied with power from a power supply line connected to the quick connection terminal 61 of the conductive contact piece 59.

[0004]

As described above, the pinched fluorescent lamp socket is rotated as shown by the arrow b from the state where the straight tube fluorescent lamp 55 is inserted into the lamp pin insertion groove 51 as shown by the arrow a. Then, mounting of the lamp 55,
Removed.

However, in the detached state, there is no structure for supporting the lamp pin 56. Therefore, when the lamp 55 is used downward as shown in FIG. 8, the guide groove 57 of the lamp sockets P1 and P2 is used due to its own weight. And was pulled out from the lamp pin insertion groove 51. For this reason, when the lamp 55 is removed for lamp replacement, inspection and cleaning, the lamp 55 falls down at the same time as the rotation of the lamp 55, and falls on the operator's head, or falls on the floor surface, and is damaged by lamp fragments. There was a possibility.

Accordingly, it is an object of the present invention to provide a lamp socket in which a lamp can be safely attached and detached.

[0007]

According to a first aspect of the present invention, there is provided a lamp socket including a socket body having an opening and having a lamp pin insertion groove connected to the opening from an outer edge on a front surface thereof, and the opening being rotatable. A rotor provided with a guide groove for guiding a lamp pin inserted into the lamp pin insertion groove formed in a front diameter direction, and a lamp pin provided in the socket body and inserted through the guide groove together with the rotor. A conductive contact piece with which the lamp pin comes into contact when the lamp pin is rotated; and wherein the guide groove has a narrowed portion through which the lamp pin can be inserted and narrower than an outer diameter of the lamp pin.

According to the lamp socket of the first aspect,
Since the constricted portion smaller than the lamp pin diameter is provided in the guide groove, the lamp is temporarily held by the constricted portion even in the detached state of the lamp in which the guide groove is aligned with the lamp pin insertion groove. . In addition, since the lamp can be temporarily held, the lamp can be kept attached without removing the lamp even when the lamp is thinned out, and the lamp need not be stored.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. That is, this lamp socket is a pinched socket for rotatingly mounting and removing the lamp pin 11 of the lamp 16, and has a socket body 1, a rotor 2, and a conductive contact piece 3.

The socket body 1 has an opening 4 and a lamp pin insertion groove 5 extending from the outer edge to the opening 4 on the front surface. The socket body 1 includes a body 1a, an opening 4 and a lamp pin insertion groove 5 as shown in FIG.
Is formed of the cover 1b. Reference numeral 6 denotes a split post for rotatably supporting the rotor 2, and the split grooves 6 a are aligned in the groove direction of the lamp pin insertion groove 5. The split groove 6a forms a part of a guide groove 12 to be described later.
1 has a narrowed portion 15 at an interval x (x <y) smaller than the outer diameter y of the lamp pin 11, and the narrowed portion 15 has a pair of protrusions 15a, 15 protruding from the side surface of the split groove 6a.
b. 9 is an electric wire insertion hole and 10 is an electric wire release hole.

The rotor 2 has a guide groove 12 which is rotatably provided in the opening 4 and guides the lamp pin 11 inserted in the lamp pin insertion groove 5 in the diameter direction of the front surface. The rotor 2 has a through hole 2b at the center, and the inner flange 2a of the through hole 2b of the rotor 2 is slidably fitted in the circumferential groove 6a of the split support cylinder 6. The guide groove 12 has a constricted portion 15 having a width x smaller than the outer diameter y of the lamp pin 11 so that the lamp pin 11 can be inserted into a substantially central portion thereof. It is formed in a split groove 6b which is a part.

Although not shown, the conductive contact piece 3 is a spring member having the same configuration as that shown in FIG. 5 and the like. The lamp pin 11 provided in the socket body 1 and inserted into the guide groove 12 is rotated together with the rotor 2. By doing so, the lamp pin 11 comes into contact.

As shown in FIG. 1, the lamp pins 11 of the straight tube fluorescent lamp 16 are inserted from the lamp pin insertion grooves 5 into the guide grooves 12.
4B, the split groove 6b is elastically deformed outward and the ridges 15a and 15b swing outward, whereby one of the lamp pins 11 rides over the narrowed portion 15 and the guide groove is formed. 12 is inserted. In this state, the lamp 16
The lamp pin 11 is caught by the stenosis 15 even if the user releases his / her hand, and thus the lamp pin 11 is prevented from falling. When one of the lamp pins 11 passes through the constriction 15, the lamp 16 is turned to rotate the rotor 2.
Is rotated, the lamp pin 11 comes into contact with the conductive contact piece 3 to be turned on. On the other hand, when the ramp 16 is rotated to rotate the rotor 2 to the original state, and the guide groove 12 is aligned with the lamp pin insertion groove 5, the split groove 6b is also aligned so as to be a part of the guide groove 12, and at this time, the lamp pin 11 tries to fall from the lamp pin insertion groove 5 due to the weight of the fluorescent lamp 16, but one of the lamp pins 11 is caught by the narrowed portion 15 and is temporarily held, so that the lamp pin 11 is prevented from falling.

If the split strut 6 does not penetrate the rotor 2, the constricted portion 15 is formed in the guide groove 1 of the rotor 2.
2 directly.

[0015]

According to the first aspect of the present invention, since the constricted portion smaller than the diameter of the lamp pin is provided in the guide groove, the lamp is temporarily removed by the constricted portion even when the lamp in which the guide groove is aligned with the lamp pin insertion groove is removed. Because it is held, it does not fall under its own weight and can be safely removed.
In addition, since the lamp can be temporarily held, the lamp can be kept attached without removing the lamp even when the lamp is thinned out, and the lamp need not be stored.

[Brief description of the drawings]

FIG. 1 is a perspective view of a use state of an embodiment of the present invention.

FIG. 2 is a perspective view showing a state where a cover and a conductive contact piece are removed.

FIG. 3 is a perspective view showing a relationship between an allocation support and a lamp pin.

4A is a cross-sectional view thereof, and FIG. 4B is a cross-sectional view when a lamp pin passes through a split groove.

FIG. 5 is an exploded perspective view of a conventional lamp socket.

FIG. 6 is a perspective view of a lamp socket.

FIG. 7 is a perspective view of the lamp socket with a cover removed.

FIG. 8 is an explanatory diagram showing mounting of a lamp pin.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Socket main body 2 Rotor 3 Conductive contact piece 4 Opening 5 Lamp pin insertion groove 11 Lamp pin 12 Guide groove 15 Narrow part

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yasuhiro Kimura 7-7-6 Yumegaoka, Ueno City, Mie Prefecture Asahi National Lighting Co., Ltd. (72) Inventor Satoshi Uehara 7-7-6 Yumegaoka, Ueno City, Mie Prefecture Asahi Na (72) Inventor Tetsuya Matsumoto 7-7-6 Yumegaoka, Ueno City, Mie Prefecture Asahi National Lighting Corporation (72) Inventor Atsushi Sato 7-7-6 Yumegaoka, Ueno City, Mie Prefecture Asahi National Lighting (72) Inventor Tomoyuki Ono 7-7-6 Yumegaoka, Ueno City, Mie Prefecture Asahi National Lighting Co., Ltd. F-term (reference) 5E024 BB02 BB08 BB10

Claims (1)

[Claims] 1. A socket body having an opening and having a lamp pin insertion groove on the front surface connected to the opening from an outer edge thereof,
A rotor provided rotatably in the opening and guiding a lamp pin inserted in the lamp pin insertion groove in a front diameter direction; and a rotor provided in the socket body and inserted into the guide groove. And a conductive contact piece with which the lamp pin comes into contact by rotating the lamp pin together with the rotor, wherein the guide groove has a narrowed portion through which the lamp pin can be inserted and which is narrower than the outer diameter of the lamp pin. And lamp socket.