JP4376672B2 - Lamp socket - Google Patents

Description

  The present invention relates to a lamp socket for incorporating a lighting fixture, and more particularly to a lamp socket that is clamped between a fixture main body and a fixture cover disposed on the front surface thereof.

A conventional lamp socket that is sandwiched between an instrument body and an instrument cover disposed on the front surface thereof has an attachment part such as a locking claw to the instrument body, and a contact part corresponding to the instrument cover (for example, There are some which are sandwiched between Patent Literature 1) and a fitting member of a fixture cover that is fitted to a lamp socket in a direction perpendicular to the insertion direction of the fixture main body and the attachment portion to the fixture main body.
Japanese Utility Model Publication No. 5-8890

  However, in the former, since there is only one kind of positional relationship between the mounting portion and the abutting portion, the shape of the device body or the device cover becomes complicated when configuring a device in which the height of the lamp socket in the device mounting direction is changed. It was apt to be difficult to compose.

  In the latter case, the lamp socket is incorporated in only one direction to the instrument body because of the fitting of the fitting member, and the structure is complicated by the fitting member.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a lamp socket that can be easily constructed with differently shaped fixtures while the lamp socket is assembled in one direction.

The lamp socket according to the present invention is a lamp socket for a lighting fixture including a fixture main body and a fixture cover that also has a socket insertion portion and is disposed to face the fixture main body and also serves as a reflector that covers the front surface of the fixture main body. . The lamp socket has an instrument body abutting portion that is provided on the rear end side of the socket body and contacts the instrument body. In addition, a lamp mounting portion is provided on the front end side of the socket body and exposed from the socket insertion portion of the instrument cover. Furthermore, it has the instrument cover contact part which protrudes from the side surface between the said instrument main body contact part and the said lamp mounting part, and contact | abuts the edge part of the said socket insertion part. And the said socket main body is clamped and fixed to the said instrument main body and the said instrument cover by the said instrument main body contact part and the said instrument cover contact part. In this case, a plurality of the instrument cover abutting portions are provided at different intervals from the instrument body abutting portion, and the overhang width of each is made smaller as it is farther from the instrument body abutting portion.

  In another lamp socket of the present invention, a plurality of the instrument cover abutting portions are provided at different intervals from the instrument body abutting portion, and the length along each side surface is closer to the instrument body abutting portion. Characterized by being enlarged.

  The said structure WHEREIN: As for the said socket main body, at least one part of the said instrument cover contact part is extended in the full length of the socket longitudinal direction.

  The said structure WHEREIN: The said instrument cover contact part nearest the center of the said socket main body has extended the full length of the socket longitudinal direction.

  According to the lamp socket of the present invention, a plurality of fixture cover abutting portions are provided at different intervals from the fixture main body abutting portion, and each overhang width is made smaller as it is farther from the fixture main body abutting portion. When constructing a fixture with a different height in the mounting direction, the lamp socket can be easily accommodated to a different shape of the fixture cover while maintaining the direction of mounting the lamp socket in the same direction. It becomes easy.

  If each length is made closer to the instrument body contact part, the overhang width of the instrument cover contact part is not increased, so that material saving can be realized and strength reduction can be prevented.

  The fixture cover abutting portion extends over the entire length in the socket longitudinal direction, so that warpage, twisting, and the like of the molded product of the lamp socket can be suppressed. In particular, when it is provided near the center of the socket, the effect can be made more remarkable.

  An annular fluorescent lamp illuminator to which a first embodiment of the present invention is applied will be described with reference to FIGS. That is, in this lighting fixture, the fixture body 1 is attached to the hooking ceiling body 2 of the ceiling 3 via the fixture 25. A lighting circuit component (not shown) is attached to the front surface of the instrument body 1, and an instrument cover 5 that also serves as a reflector is disposed opposite to the front surface of the instrument body 1 to cover the lighting circuit component on the front surface of the instrument body 1. ing. The instrument cover 5 has a hole 26 for passing the hooking sealing cap 4 in the center, a socket insertion part 7 for inserting the lamp socket 6 in the peripheral part by a notch, and a socket with the center in between. A lamp holding spring 8 is provided on the side opposite to the insertion portion 7. The lamp holding spring 9 is attached to the instrument body 1 near the lamp holding spring 8.

  In the lamp socket 6, the socket body 13 has a substantially rectangular parallelepiped shape close to a substantially triangular prism body, and its longitudinal direction is directed in the radial direction of the instrument body 1. On the rear end side of the socket body 13, an instrument body abutting portion 10 that abuts on the instrument body 1 is provided. The instrument main body abutting portion 10 has a convex portion 14 and is provided with locking claws 15 on both sides thereof. On the other hand, a hole that fits into the convex portion 14 is formed in the instrument main body 1, and the instrument main body abutting portion 10 is brought into contact with the front surface of the instrument main body 1 by fitting the convex portion 14 into the hole, and the locking claw 15 Is retained and locked to the edge of the hole. Reference numerals 16 denote protrusions that are provided on both sides of the locking claw 15 and receive the front surface of the instrument body 1 in order to ensure locking of the locking claw 15.

  On the front end side of the socket body 13, a lamp mounting portion 11 exposed from the socket insertion portion 7 of the instrument cover 5 is provided. Since this instrument body 1 is for two lamps, two lamp mounting portions 11 are provided in the radial direction of the instrument body 1 at a predetermined interval.

  On the side surface between the fixture body contact portion 10 and the lamp mounting portion 11 of the socket body 13, a brim-like or rib-like fixture cover contact portion 12 that is in contact with the inner surface of the fixture cover 5 is projected. The instrument cover abutting portion 12 is provided so as to be continuous with both side surfaces and one end surface of the socket body 13, and a plurality (12 a, 12 b) is provided at different intervals from the instrument body abutting portion 10. In this case, the overhang width (height protruding from the side surface) of the instrument cover abutting portions 12a and 12b is made smaller as it is farther from the instrument body abutting portion 10. That is, as shown in FIG. 5A, the distance between the tips of the instrument cover abutting portions 12 protruding from both side surfaces of the socket body 13 is between the tips of the instrument cover abutting portions 12b far from the instrument main body abutting portion 10. W1 <W2 where the distance W1 is the distance W2 between the tips of the instrument cover abutting portions 12a close to the instrument body abutting portion 10. In FIG. 1, the edge of the socket insertion part 7 of the instrument cover 5 is locked to the instrument cover abutting part 12 a close to the instrument body abutting part 10. Therefore, the width of the socket insertion portion 7 is formed such that it can pass through the instrument cover abutting portion 12b. In addition, a part of the instrument cover abutting part 12, that is, the instrument cover abutting part 12a, 12b of both the instrument cover abutting parts 12a, the instrument cover abutting part 12a closest to the center of the socket body 13 extends the entire length in the socket longitudinal direction. The cover abutting portion 12b also extends substantially the entire length leaving a part of the discontinuous portion. Then, by attaching the instrument cover 5 to the front surface of the instrument body 1, the socket body 1 is clamped and fixed to the instrument body 1 and the instrument cover 5 by the instrument body abutting portion 10 and the instrument cover abutting portion 12.

  When another instrument cover 5 ′ (see FIG. 3) is brought into contact with the instrument cover abutting portion 12b, the width of the socket insertion portion 7 of the other instrument cover 5 ′ is set to the width of the socket insertion portion 7 of the instrument cover 5. This can be achieved by making it narrower. That is, as shown in FIG. 1B, the instrument cover abutting portions 12 a and 12 b can be used properly by adjusting the width A of the socket insertion portion 7. As a result, it is possible to easily cope with two types of instrument covers 5 and 5 'having different shapes of the socket insertion portion 7, and the shape is not complicated.

  Reference numeral 20 denotes an annular fluorescent lamp which is held by the lamp mounting portion 11 and the lamp support springs 8 and 9, and a lamp pin is connected to the lamp mounting portion 11, and 22 is a lead wire.

  A second embodiment of the present invention will be described with reference to FIGS. In the lamp socket, the instrument cover contact portion 12b is formed in a step shape in the first embodiment. FIG. 10A shows a case where the instrument cover 5 is locked to the instrument cover abutting portion 12a. FIG. 10B shows another type of instrument cover 5 ′ having a socket insertion portion 7 whose width is smaller than that of the instrument cover 5. This is a case of locking to the instrument cover contact portion 12b.

  A third embodiment of the present invention will be described with reference to FIGS. In the first embodiment, the lamp socket is provided with a plurality of instrument cover abutting portions 12a and 12b at different intervals from the instrument main body abutting portion 10, but the overhang width is the same, and the side of each socket main body 13 is provided. The length along the side closer to the instrument main body abutting portion 10 is increased. That is, the instrument cover abutting portion 12a extends the entire length of the socket body 13 as in the first embodiment, and the instrument cover abutting portion 12b is shortened only near the center of both side surfaces of the socket body 13. is doing. On the other hand, as shown in FIG. 12 (a), the instrument cover 5 'that abuts against the instrument cover abutting portion 12b has a socket insertion portion 7 through which the lamp socket 6 is inserted as a square hole to expose the lamp mounting portion 11 and through the socket. The instrument cover contact portion 12b is locked to the edge portion of the portion 7. On the other hand, the instrument cover 5 that abuts the instrument cover abutting part 12a close to the instrument body abutting part 10 has a rectangular shape in the socket insertion part 7 for inserting the lamp socket 6 as shown in FIG. At the same time, a wide portion 7a is formed in the central portion, the lamp mounting portion 11 is exposed from the socket insertion portion 7, and the instrument cover abutting portion 12b is inserted from the wide width portion 7a. The contact portion 12a is locked.

  In the present invention, the overhang width can be varied according to the distance from the instrument main body abutting portion 10 as in the first embodiment. In this case, the hole shape of the socket insertion portion 7 is partially wide. It becomes a simple rectangular shape with no part.

(A) is sectional drawing of the lighting fixture to which 1st Embodiment of this invention is applied, (b) is a reduction | decrease schematic plan view of a fixture cover. (A) is the perspective view which looked at the upper end side of the lamp socket, (b) is the perspective view which made the lamp socket reverse to (a). (A) is a front view of a lamp socket, (b) is the bottom view. (A) is a top view of a lamp socket, (b) is a rear view. (A) is a right side view of the lamp socket, (b) is a left side view. (A) is the perspective view which looked at the upper end side of the lamp socket of 2nd Embodiment, (b) is the perspective view which made the lamp socket reverse to (a). (A) is a front view of a lamp socket, (b) is the bottom view. (A) is a top view of a lamp socket, (b) is a rear view. (A) is a right side view of the lamp socket, (b) is a left side view. (A) is a partial cross-sectional view of a state in which the instrument cover is brought into contact with the upper instrument cover abutting portion and attached to the instrument body, and (b) is a diagram in which the instrument cover is brought into contact with the lower instrument cover abutting portion. It is a fragmentary sectional view of the state attached to the instrument main body. (A) is the front view of 3rd Embodiment, (b) is the top view. (A) is a reduction | decrease schematic plan view of the instrument cover latched to a lower instrument cover contact part, (b) is a reduction | decrease schematic plan view of the instrument cover latched to an upper instrument cover contact part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Instrument body 5 Instrument cover 5 'Instrument cover 6 Lamp socket 7 Socket insertion part 10 Instrument body contact part 11 Lamp mounting part 12 Instrument cover contact part 12a Instrument cover contact part 12b Instrument cover contact part 13 Socket body

Claims (4)

A lamp socket of a lighting fixture comprising an appliance main body and an appliance cover that also has a socket insertion portion and is disposed opposite to the appliance main body and also serves as a reflector that covers the front surface of the appliance main body,
An instrument body abutting portion provided on the rear end side of the socket body and contacting the instrument body; a lamp mounting portion provided on the front end side of the socket body and exposed from the socket insertion portion of the instrument cover; An instrument cover abutting part that projects from a side surface between the instrument body abutting part and the lamp mounting part and abuts against an edge of the socket insertion part, and the socket body includes the instrument body abutting part and the socket body abutting part. In the lamp socket clamped between the instrument body and the instrument cover by the instrument cover abutting part,
A lamp socket characterized in that a plurality of the instrument cover abutting portions are provided at different intervals from the instrument body abutting portion, and the overhang width of each is reduced as the distance from the instrument body abutting portion decreases. A lamp socket of a lighting fixture comprising an appliance main body and an appliance cover that also has a socket insertion portion and is disposed opposite to the appliance main body and also serves as a reflector that covers the front surface of the appliance main body,
An instrument body abutting portion provided on the rear end side of the socket body and contacting the instrument body; a lamp mounting portion provided on the front end side of the socket body and exposed from the socket insertion portion of the instrument cover; An instrument cover abutting part that projects from a side surface between the instrument body abutting part and the lamp mounting part and abuts against an edge of the socket insertion part, and the socket body includes the instrument body abutting part and the socket body abutting part. In the lamp socket clamped between the instrument body and the instrument cover by the instrument cover abutting part,
A lamp socket characterized in that a plurality of the instrument cover abutting portions are provided at different intervals from the instrument body abutting portion, and the length along each of the side surfaces is increased as the distance from the instrument body abutting portion increases. .   The lamp socket according to claim 1, wherein the socket body has at least a part of the instrument cover abutting portion extending in the entire length in the socket longitudinal direction.   The lamp socket according to claim 3, wherein the appliance cover abutting portion closest to the center of the socket body extends over the entire length in the socket longitudinal direction.

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