JP4736122B2 - Lighting equipment for straight tube lamps - Google Patents

Description

  The present invention relates to an improvement in a lighting device for a straight tube lamp.

2. Description of the Related Art Conventionally, a straight-tube fluorescent lamp luminaire that is used while being supported under a building eaves or the like is worse in use environment than a straight-tube fluorescent lamp luminaire used indoors. For example, when used in a place where cold air blows or where dust blows, a structure in which a straight tube type fluorescent lamp is mounted inside a light-transmitting cylinder has been implemented.
Further, in order to maintain the luminous flux of the fluorescent lamp at a low temperature, an invention in which the fluorescent lamp is mounted inside the cylinder has been proposed for a straight tube type fluorescent lamp luminaire used in a low temperature environment. (See Patent Document 1)
In addition, a structure has been proposed in which a straight tube type fluorescent lamp is mounted inside a cylinder to ensure an optimal lamp environment with little light flux decrease. (See Patent Document 2)

Japanese Patent Laid-Open No. 2001-23426 JP 2003-109409 A

By the way, as for the tube diameter of a straight tube | pipe type fluorescent lamp, 25.5mm, 28.0mm, and 32.5mm and the thing of multiple types are used. In recent years, electronic ballasts tend to be frequently used instead of copper-iron type ballasts.
In the type using a copper iron type ballast, there is no inconvenience because there is one kind of tube diameter of a suitable straight tube type fluorescent lamp, but there is only one electronic ballast. It is possible to adapt to multiple types of straight tube fluorescent lamps with different lighting methods.
Therefore, if multiple types of straight tube fluorescent lamps with different tube diameters can be shared by a single lighting fixture, it is necessary to prepare lighting fixtures having different sized cylinders for fluorescent lamps with different tube diameters. This simplifies design and inventory management.
In addition, in a structure in which multiple types of straight-tube fluorescent lamps with different tube diameters are shared by a single lighting fixture, the support of the straight-tube fluorescent lamp is reliable and the lighting fixtures of the straight-tube fluorescent lamp are Ease of attachment / detachment is a problem.

  The present invention has been invented in view of the above-described problems, can maintain a luminous flux, can support a desired fluorescent lamp having a different tube diameter, and can easily attach and detach a straight-tube fluorescent lamp. An object of the present invention is to provide a lighting device for a straight tube lamp that can be used.

In order to solve the above-mentioned problem, claim 1 according to the present invention provides:
It has a luminaire body for mounting a straight tube lamp, a lamp cylinder that houses the straight tube lamp, and a socket that is arranged at the end of the lamp cylinder. A cylindrical support having a plurality of elastic protruding pieces is arranged toward the central axis in the direction.
Further, by fitting a straight-tube lamp in the cylindrical support, the straight pipe-type lamp is provisionally supported by free the elastic protruding pieces bend a plurality of tip becomes thick from the base portion, further the elastic The projecting piece is configured to mount and support a straight tube lamp having a different tube diameter in a socket in a state of being substantially upright, slightly bent, or bent in the longitudinal direction of the straight tube lamp. It is.

Claim 2 is claim 1 The plurality of elastic projecting pieces in the straight-tube lamp luminaire are configured radially toward the central axis in the longitudinal direction of the cylindrical support.

According to a third aspect of the present invention, there is provided a cylindrical support body peripheral surface in the straight tube type lamp lighting apparatus according to the first or second aspect, and the outer side of the elastic protruding piece has a stepped portion and the inner diameter of the elastic protruding piece from the inner side. It is large.

According to the present invention, a plurality of elastic projecting pieces are provided toward the central axis in the longitudinal direction of the cylindrical support, so that a straight-tube lamp having a different tube diameter is supported by one type of lighting fixture. be able to. Further, since the straight tube lamp can be temporarily supported inside the lamp cylinder, the straight tube lamp can be easily attached and detached. Further, since the straight tube lamp is mounted inside the cylinder, there is an effect that it is possible to suppress a decrease in luminous flux due to cooling.

  The best mode for carrying out the present invention will be described below with reference to FIGS.

  In FIG. 1 to FIG. 4, reference numeral 1 denotes a luminaire main body to which a straight tube type lamp is attached, which is configured in, for example, a long box shape and supports an electronic ballast 2 inside. A socket 3 is supported near both ends of the luminaire main body 1, and a translucent lamp cylinder 4 is supported between the sockets supported near both ends of the luminaire main body 1. The lamp cylinder 4 has a length of, for example, 1193 mm and an outer diameter of 40 mm.

  Reference numeral 5 denotes a straight tube lamp, which is a straight tube type, for example, a fluorescent lamp. The straight tube type fluorescent lamp has a plurality of types of tube diameters, for example, 25.5 mm, 28.0 mm, and 32.5 mm. The length of the straight tube fluorescent lamp is, for example, 1198 mm or 580 mm. Reference numeral 6 denotes a lamp pin of a straight tube type fluorescent lamp.

2 to 11, reference numeral 10 denotes a cylindrical support that is disposed inside the vicinity of the end of the lamp cylinder 4, and has a plurality of elastic protruding pieces toward the central axis in the longitudinal direction. . The cylindrical support is made of, for example, a rubber material. In addition, for example, twelve elastic protrusions 11 are integrally formed radially and equally spaced toward the central axis in the longitudinal direction of the cylindrical support. The size of the hole 13 formed by the tips of the plurality of elastic protruding pieces 11 is, for example, φ24 mm. Further, instead of the plurality of radial elastic protruding pieces, an integrally formed elastic protruding piece may be provided in the same portion. However, according to the structure in which the elastic protruding pieces are integrally formed, the tube diameter of the straight tube lamp is between 25.5 mm and 28.0 mm. Reference numeral 12 denotes a collar unit integrally formed at the end of the cylindrical support 10.

Further, as shown in FIG. 8, the elastic protruding piece 11 is configured such that the base portion of the cylindrical support 10 is thinner than the tip. When the root portion is made thinner than the tip in this way, the elastic protruding piece 11 is easily tilted when a straight tube lamp having a large tube diameter is inserted and supported, and the mounting operation of the straight tube lamp becomes easy. Further, since the tip of the elastic protruding piece 11 is thicker than the base portion, the straight tube type fluorescent lamp can be securely held without being bent.

Further, the inner peripheral surface of the cylindrical support 10 and the outer side of the elastic protruding piece 11 has a stepped portion 14 and has a larger inner diameter than the inner side of the elastic protruding piece. If the outer side of the elastic protruding piece 11 has a stepped portion and the inner diameter is made larger than the inner side of the elastic protruding piece, the elastic protruding piece is inserted when the elastic protruding piece 11 that is temporarily supported by inserting a straight tube lamp is collapsed. 11 can easily move to a space having a large inner diameter, and it becomes easy to support insertion of the straight tube lamp into the cylindrical support 10. For example, when the inner thickness of the cylindrical support 10 from the elastic protruding piece 11 is φ33 mm, the outer thickness of the elastic protruding piece 11 is, for example, φ34 mm. The step is 0.5 mm.

9 to 11, reference numeral 20 denotes a socket cover, and reference numeral 21 denotes a packing, which is pressed by an annular pressing body 22 and is brought into close contact with the outer surface of the lamp cylinder 4.

Next, the support of the straight tube lamp 5 will be described with reference to FIGS.
(1) First, the straight tube lamp 5 is inserted into the lamp cylinder 4 and the cylindrical support 10 is inserted into both ends of the lamp cylinder 4. At this time, the straight tube lamp 5 enters between a large number of elastic protrusions 11 of the cylindrical support 10, and the straight tube lamp 5 is temporarily supported by the large number of elastic protrusions 11.
(2) Next, the socket cover 20 is inserted in the vicinity of both ends of the lamp cylinder 4 so as to be in the state shown in FIG.
(3) After that, as shown by the arrow in FIG. 9, the straight tube lamp 2 is pushed up to a predetermined position of the socket 3, and the socket cover 20 inserted into the lamp cylinder 4 is rotated as shown in FIG. Then, the socket 3 is tightened to the state shown in FIG.

  As described above, when the straight tube lamp 5 is supported, when the tube diameter of the straight tube lamp is 25.5 mm, the large number of elastic protruding pieces 11 of the cylindrical support 10 are substantially upright as shown in FIG. In this state, the straight tube lamp 5 is supported. At this time, the gap between the lamp cylinder 4 and the straight tube lamp 2 is about 5.25 mm. When the tube diameter of the straight tube lamp is 28.0 mm, as shown in FIG. 3, the large number of elastic protruding pieces 11 of the cylindrical support 10 support the straight tube lamp 2 in a slightly bent state in the same direction. To do. At this time, the gap between the lamp cylinder 4 and the straight tube lamp 5 is about 4.0 mm. When the tube diameter of the straight tube lamp is 32.5 mm, the large number of elastic protruding pieces 11 of the cylindrical support 10 support the straight tube lamp 5 while being bent in the same direction as shown in FIG. . At this time, the gap between the lamp cylinder 4 and the straight tube lamp 5 is about 1.75 mm. In this way, straight tube lamps having different tube diameters can be supported and shared by a single straight tube lamp luminaire.

  Further, when the design dimensions of the lamp cylinder 4 and the straight tube lamp 5 have a margin, as shown in FIGS. 12 and 13, it is possible to carry out without providing the step portion 14 on the inner peripheral surface of the cylindrical support 10. it can. When there is a margin in the dimensions, a large number of elastic protruding pieces 11 can be designed to bend without difficulty. Other structures are the same as those shown in the first embodiment.

The schematic front view of the lighting fixture for straight tube | pipe type lamps which concerns on this invention. The front view which abbreviate | omitted the middle of the lighting fixture for straight tube | pipe type lamps which concerns on this invention. The front view which shows the other Example when the middle of the lighting fixture for straight tube | pipe type lamps which concerns on this invention is abbreviate | omitted. The front view which shows the other Example when the middle of the lighting fixture for straight tube | pipe type lamps which concerns on this invention is abbreviate | omitted. The side view which shows the cross section of the cylindrical support body part of the lighting equipment for straight tube | pipe type lamps which concerns on this invention. The front view of the cylindrical support body of the lighting equipment for straight tube | pipe type lamps which concerns on this invention. Sectional drawing of the cylindrical support body shown in FIG. FIG. 8 is a partially enlarged view of FIG. 7. The front view before attaching the straight tube | pipe type lamp concerning this invention to a socket. The front view when the straight tube | pipe type lamp concerning this invention is mounted | worn with a socket. The front view when attaching the straight tube | pipe type lamp concerning this invention to a socket, and attaching the socket cover. Sectional drawing from the front which shows the other Example of the cylindrical support body of the lighting equipment for straight tube | pipe type lamps concerning this invention. The partially expanded sectional view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lighting fixture body 2 Electronic ballast 3 Socket 4 Lamp cylinder 5 Straight tube type lamp 6 Lamp pin 10 Cylindrical support body 11 Elastic protrusion piece 12 Spear piece 13 Hole 14 Step part 20 Socket cover 21 Packing

Claims (3)

It has a luminaire body for mounting a straight tube lamp, a lamp cylinder that houses the straight tube lamp, and a socket that is arranged at the end of the lamp cylinder. A cylindrical support having a plurality of elastic projecting pieces is arranged toward the central axis of the direction, and a straight tube lamp is fitted into the cylindrical support, so that the straight tube lamp has a plurality of tips at the base portion. The elastic protruding piece is temporarily supported by the elastic protruding piece that does not bend to be thick , and the elastic protruding piece is substantially upright, slightly bent, or bent in the longitudinal direction of the straight tube lamp. A straight-tube lamp illuminator characterized in that a straight-tube lamp having a different tube diameter is mounted and supported on a socket. The straight tube type lamp lighting device according to claim 1, wherein the plurality of elastic protruding pieces are configured radially toward a central axis in a longitudinal direction of the cylindrical support. The straight tube lamp according to claim 1 or 2 , wherein a stepped portion is provided on the outer peripheral surface of the cylindrical support body and outside the elastic protruding piece so that the inner diameter is larger than the inner side of the elastic protruding piece. Lighting equipment.

Images