JP2007173103A - Lamp socket, single base type fluorescent lamp and lighting apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a single base type fluorescent lamp having a spiral light emitting tube and a pin terminal type mouthpiece, in which an easiness of a fitting of a lamp into a lamp socket is attained. <P>SOLUTION: The single base type fluorescent lamp 1 is provided with a light emitting tube 11 around a spiral axis C of which a glass tube is formed spirally and a mouthpiece 12 having a plurality of lamp pins for electric conducting. On a side of the mouthpiece 12, there are formed in projection a rotating part 13 as a guide, and a rotating axis A connected with the rotating part 13 is on a flat face perpendicular with the spiral axis C, and a line connected with the lamp pin 14 is on a straight line in parallel with the rotating axis A. When the lamp 1 is inserted into a lamp socket 2 from an axis inclined from the spiral direction of its fitting (an arrow I), the rotating part 13 is positioned in a rotating part receiving part 25. Then, when the lamp is pushed from a side and is moved around the rotating axis A (an arrow II), the lamp pins are inserted into and held by a lamp pin holding part 32 and the lamp is fitted finally. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a lamp socket for holding a single-piece fluorescent lamp having a spiral arc tube, a single-piece fluorescent lamp, and a lighting fixture.

  Conventionally, a bulb-type fluorescent lamp has a lighting circuit inside, and is used as a substitute for an incandescent lamp. However, in order to reduce the size, improve the function, and extend the life of the bulb-type fluorescent lamp, when the lighting circuit is a separately installed single-cap fluorescent lamp, four caps are required, and a pin terminal type is required. There is a need to.

  In addition, it is difficult for the spiral arc tube to have a shape that hooks a finger on the bulb when rotating for mounting the lamp, compared to a normal single-piece fluorescent lamp such as FPL or FDL. Thus, friction with the operator's finger is reduced. Therefore, the operability may be poor when rotating the lamp for mounting.

By the way, in a socket for a single-piece fluorescent lamp, a lamp insertion direction groove provided in the socket and a groove perpendicular thereto are provided, and the lamp is provided with a locking projection on the side, and the lamp locking projection. It is known that a lamp is mounted by rotating the lamp around the insertion direction as a pivot axis after inserting the lamp into the insertion direction groove (see, for example, Patent Document 1). In order to mount the lamp, this single-piece socket for fluorescent lamps requires the lamp to be rotated around the rotation axis. However, when the lamp tube is spiral, the friction with the operator's finger is small. The operability may be poor.
JP 2001-93631 A

  The present invention has been made to solve the above-described problems, and even a lamp having a spiral arc tube and a pin terminal type base can be easily operated when the lamp is mounted. An object of the present invention is to provide a lamp socket for holding a single-piece fluorescent lamp, a single-piece fluorescent lamp, and a lighting fixture.

  In order to achieve the above object, the invention of claim 1 is equipped with a one-piece fluorescent lamp comprising a luminous tube in which a glass tube is formed in a spiral shape around a pivot axis and a die having a plurality of pin terminals, A lamp socket having a plurality of contact fittings that respectively contact pin terminals, wherein the one-piece fluorescent lamp is inserted from an axis inclined from a pivot axis in the mounted state, and is on a plane perpendicular to the pivot axis By rotating about the rotation axis, the lamp mounting completion position is reached, and the pin terminals are held by the contact fittings, respectively.

  The invention according to claim 2 is a single-piece fluorescent lamp mounted on the lamp socket according to claim 1, wherein each of the plurality of pin terminals is formed to protrude from the base in the direction of the pivot axis, The plurality of pin terminals are arranged in a straight line in a direction parallel to the rotation axis of the one-piece fluorescent lamp.

  According to a third aspect of the present invention, the pivot axis, the straight line connecting the pin terminals, and the rotation axis of the single-piece fluorescent lamp are on the same plane.

  According to a fourth aspect of the present invention, there is provided a single-piece fluorescent lamp comprising a light-emitting tube in which a glass tube is spirally formed around a pivot axis and a base having a plurality of pin terminals, and the single-piece fluorescent lamp is mounted. A lamp socket having a plurality of contact fittings that respectively contact the pin terminals, wherein the one-piece fluorescent lamp is placed on the lamp socket from an axis inclined from the swivel axis in the mounted state. By being inserted and rotated about a rotation axis on a plane perpendicular to the pivot axis, the lamp mounting completion position is reached, and the pin terminals are held by the contact fittings, respectively.

  According to the first and fourth aspects of the present invention, the lamp is rotated about the rotation axis perpendicular to the rotation axis without rotating about the rotation axis. In other words, the lamp can be mounted on the socket by pushing the arc tube of the lamp from the side, so that even if it is difficult to give torque around the pivot axis, only the spiral arc tube can be gripped. However, it is not necessary to grasp and attach the lamp firmly, and the lamp can be easily attached.

  According to the invention of claim 2, since it is not necessary to consider the insulation distance with respect to the rotation axis direction of the pin terminal, the rotation angle by the rotation operation until the pin terminal is held by the contact fitting can be freely set. Can be set. Furthermore, when the lamp socket is applied to the downlight, the rotation angle is small for the vertical mounting type, and the rotation angle is set large for the horizontal mounting type, so that the lamp can be easily mounted. can do.

  According to the invention of claim 3, since the lamp has no directivity in the base, the lamp insertion operation is facilitated.

  Hereinafter, a single base fluorescent lamp according to an embodiment of the present invention and a lamp socket for holding the lamp will be described with reference to the drawings. FIG. 1 shows a single-piece fluorescent lamp 1, FIG. 2 shows a lighting fixture in which the single-piece fluorescent lamp 1 is mounted on a lamp socket 2, and FIG. 3 shows an exploded state of the single-piece fluorescent lamp 1 and the lamp socket 2. Indicates. 4 shows a state in which the single-piece fluorescent lamp 1 has been inserted into the lamp socket 2 and a state in which the single-piece fluorescent lamp 1 has been installed, and FIG. 5 shows an operation of attaching the lamp pin 14 of the single-piece fluorescent lamp 1 to the lamp pin holding portion 32. .

  A single-piece fluorescent lamp 1 (hereinafter referred to as a lamp) includes an arc tube 11 in which a glass tube is spirally formed around a rotation axis C, and a plurality of (four in this example) energizing lamp pins (pin terminals). ) 14 having a base 12. The arc tube 11 is coated with a fluorescent material on the inner surface, and is filled with mercury and argon as a buffer gas. The lamp 1 is fitted on the top surface of the base 12, and a plurality of lamp pins 14 are formed on the bottom surface of the base 12 so as to protrude in the direction of the pivot axis C. On the side surface of the base 12, a rotating portion 13 that serves as a guide when inserted into the lamp socket 2 protrudes. The rotation axis A connecting the rotation unit 13 is on a plane perpendicular to the turning axis C. A straight line B connecting the lamp pins 14 is in a straight line in a direction parallel to the rotation axis A connecting the rotary unit 13. Further, the turning axis C, the straight line B connecting the lamp pins 14 and the rotation axis A are on the same plane.

  The lamp socket 2 includes a socket body 21 and a cover 23, and the socket body 21 has an insertion groove 24 for inserting the rotating portion 13 of the lamp 1, and a rotary bearing 25 for receiving the inserted rotating portion 13. An electric wire insertion hole 22 for inserting the electric wire 4 for feeding is provided. Four independent conductive plates 3 are provided inside the lamp socket 2. The conductive plate 3 is formed with a lamp pin holding portion 32 for holding the lamp pin 14 and a quick connection terminal 31 to which the electric wire 4 is connected. The conductive plate 3 is covered by attaching the cover 23 to the socket body 21. As shown in FIG. 4 to be described later, each lamp pin holding portion 32 is constituted by an elastic leaf spring composed of a pair of opposed cut and raised pieces, and the lamp pin 14 is press-fitted between the opposed elastic leaf springs. Thus, electrical conduction and mechanical holding are achieved. When the lamp 1 is inserted into the lamp socket 2, the rotation axis D of the rotary bearing 25 and the rotation axis A of the lamp 1 are coaxial. Note that a lighting circuit is not provided inside the lamp socket 2 as in the prior art.

  Next, the procedure for mounting the lamp 1 to the lamp socket 2 will be described with reference to FIGS. Here, the state in which the lamp 1 is inserted is indicated by a solid line, and the mounting completion state is indicated by a two-dot chain line.

  First, the lamp 1 is inserted into the lamp socket 2 from the axis inclined from the swivel axis C in the mounted state (arrow I). At this time, the rotating portion 13 passes through the insertion groove 24 and is positioned on the rotating bearing 25. Next, the lamp 1 is rotated about the rotation axis A (arrow II). At this time, the lamp pins 14 are sandwiched and held by the lamp pin holding portions 32, respectively, so that the lamp mounting completion position is reached.

  In the above-described embodiment, when the lamp 1 is mounted in the lamp socket 2, it is only necessary to move the lamp 1 by pushing it from the side, and only the spiral arc tube 11 can be gripped, and torque is applied around the pivot axis. Even if it is difficult to give, it is not necessary for the operator to firmly hold and attach the lamp 1, so that the lamp 1 can be easily attached to the lamp socket 2. Moreover, since it is not necessary to provide a space for putting a finger in the arc tube 11, the lamp 1 can be reduced in size, and the luminaire including the lamp 1 can be reduced in size.

  In addition, since the lamp pin 14 is located in a direction parallel to the rotation axis A of the lamp 1, it is not necessary to consider an insulation distance with respect to the direction of the rotation axis A. Therefore, the lamp 1 is inserted into the lamp socket 2. The rotation angle by the rotation operation of the lamp 1 until the mounting is completed can be freely set. Further, when the lamp pins 14 are arranged in the direction of the rotation axis A, the rotation angle can be reduced because the conductive plate 3 obstructs the rotation of the lamp pins 14. Therefore, when the lamp 1 and the lamp socket 2 are applied to a downlight or the like, the rotation angle is set to be small for the type in which the lamp 1 is mounted vertically, and the rotation angle is set to be large for the type in which the lamp 1 is mounted horizontally. 1 can be easily attached to the lamp socket 2.

  Also, since the straight line B connecting the swivel axis C and the lamp pin 14 and the rotation axis A are on the same plane, even if the lamp 1 is rotated halfway around the swivel axis C, the straight line B connecting the lamp pin 14 , And the rotation axis A are located on the same plane as before the half rotation. For this reason, when the lamp 1 is mounted in the lamp socket 2, the direction of the lamp 1 is lost, so that the insertion operation of the lamp 1 becomes easy. In addition, this invention is not restricted to the structure of the said embodiment, A various deformation | transformation is possible in the range which does not change the meaning of invention.

1 is an inclined view of a single-piece fluorescent lamp according to an embodiment of the present invention. The inclination figure of the lighting fixture of the state which mounted | wore the lamp socket same as the above. The exploded inclination figure of a lamp and a lamp socket same as the above. The sectional side view explaining the operation | movement which mounts a lamp same as the above to a lamp socket. Explanatory drawing of the operation | movement which attaches the lamp pin of a lamp same as the above to a lamp pin holding | maintenance part.

Explanation of symbols

1 lamp (single-piece fluorescent lamp)
11 arc tube 12 base 13 rotating part 14 lamp pin (pin terminal)
2 Lamp socket 21 Socket body 22 Electric wire insertion hole 23 Cover 24 Rotary bearing 25 Insertion groove 3 Conductive plate 31 Fast connection terminal 32 Lamp pin holding part 4 Electric wire

Claims (4)

A lamp provided with a plurality of contact fittings each mounted with a single-end fluorescent lamp having a light-emitting tube in which a glass tube is formed in a spiral shape around a swivel axis and a base having a plurality of pin terminals. A socket,
The single-piece fluorescent lamp is inserted from an axis tilted from the swivel axis in the mounted state, and is rotated about a rotation axis on a plane perpendicular to the swivel axis to reach a lamp mounting completion position. In addition, the lamp socket is characterized in that the pin terminals are respectively held by the contact fittings. A single-piece fluorescent lamp mounted on the lamp socket according to claim 1,
Each of the plurality of pin terminals is formed so as to protrude from the base in the direction of the pivot axis, and the arrangement of the plurality of pin terminals is parallel to the rotation axis of the single base fluorescent lamp and is in a straight line. A single-piece fluorescent lamp.   The single-piece fluorescent lamp according to claim 2, wherein the pivot axis, a straight line connecting the pin terminals, and a rotation axis of the single-piece fluorescent lamp are on the same plane. A single-tube fluorescent lamp comprising a light-emitting tube in which a glass tube is spirally formed around a pivot axis and a base having a plurality of pin terminals;
A lamp socket having a plurality of contact fittings mounted with the one-piece base fluorescent lamp and in contact with the pin terminals, respectively,
The single-piece fluorescent lamp is inserted into the lamp socket from an axis inclined from the swivel axis in the mounted state, and the lamp is mounted by rotating about a rotation axis on a plane perpendicular to the swivel axis. The lighting apparatus according to claim 1, wherein the pin terminal is held by the contact fitting while being in a completed position.

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