JP3066031U - Fluorescent light protection tube with movable cap - Google Patents

Abstract

(57) [Abstract] [Purpose] For lighting equipment such as fluorescent lamps, reduce the amount of ultraviolet light having a wavelength leaking to the outside of the light source to suppress the cause of insect collection such as flying insects, increase the illuminance efficiency, and use the lamp for a long time. It is an object of the present invention to provide a fluorescent lamp protection tube with a movable cap that prevents a decrease in reflection efficiency, prevents a fluorescent tube from falling, and prevents scattering of the fluorescent tube even if it falls. [Constitution] A fluorescent lamp heat insulating tube having an opening formed of a material that transmits substantially visible light and having a length that is shorter than the length of a fluorescent tube to be inserted, and an inner wall of the fluorescent lamp protective tube. A reflecting plate is formed on a half-peripheral surface in the longitudinal direction of the surface, and has a diameter substantially the same as the diameter of the fluorescent tube inserted into the opening of the fluorescent lamp heat retaining cylinder, and is eccentric to one side from the center position of the opening. Attach a fixed cap with an insertion opening at the position, and have the same diameter as the diameter of the fluorescent tube inserted into the other opening, and the insertion opening at a position eccentric to one side from the center position of the opening. And a movable cap that is slidable in the longitudinal direction of the fluorescent lamp heat insulating tube is attached, and the fluorescent tube is positioned by the fixed cap and the movable cap.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention reduces the amount of ultraviolet light of wavelengths leaking to the outside of the light source to increase the reflection efficiency of lighting equipment such as fluorescent lamps, suppresses the cause of insect collection such as flying insects, and reduces fluorescent light due to improper installation of fluorescent lamps. The present invention relates to a fluorescent lamp protection tube with a movable cap for preventing a tube from falling and scattering a fluorescent tube.

[0002]

[Prior art]

 As shown in FIG. 5, a conventional general fluorescent lamp is mounted on a ceiling or the like, has a ballast, and has a case body A for holding the fluorescent tube and a light source for efficiently illuminating the light of the fluorescent tube B. It is composed of a reflection plate C and the like. D is a terminal receiving portion of the fluorescent tube B. Some fluorescent tubes attached to conventional fluorescent lamps suppress ultraviolet and infrared rays depending on the color temperature and prevent insects. If this ultraviolet or infrared light is radiated for a long time, the color of furniture, equipment, clothing, etc., fades. In addition, since the fluorescent lamp emits light having a wavelength of 350 nm to 450 nm, which is preferred by flying insects, there is a problem that flying insects are attracted to the fluorescent lamp and cause insects to enter indoors.

When the illuminance is increased by attaching a reflection plate C to the outside of the case body A, the reflection efficiency is increased and the illuminance is increased by attaching reflection plates of various shapes to a fluorescent lamp fixture. Let me. Also in this case, since the reflection surface of the reflection plate C is exposed to the outside air, the reflection efficiency is deteriorated due to dirt such as dust due to long-term use.

Further, in the case of a fluorescent lamp using a straight tube type fluorescent tube B, since both terminal portions of the fluorescent tube are only held by the terminal receiving portions D of the case, if the mounting condition is insufficient, The fluorescent tube may be dropped by a slight impact. In such a case, a tape or the like is wrapped around the fluorescent tube so that the glass fragments do not scatter when the fluorescent tube falls, thereby preventing the glass fragments from scattering. Although this method prevents scattering of glass fragments when falling by directly wrapping tape or the like around the fluorescent tube, it has the problem that the tape must be wrapped every time the fluorescent tube is replaced. .

[0005]

[Problems to be solved by the invention]

 The present invention may cause color scorching due to long-term radiation and the collection of flying insects, reduce the reflection efficiency due to long-term use, and complicate the work of replacing fluorescent tubes. It is intended to solve the various problems described above.

[0006]

[Means for Solving the Problems]

 The present invention is intended to solve various problems of the conventional fluorescent lamp apparatus and has the following configuration. The first invention to be registered is a fluorescent lamp protection having an opening formed of a material that transmits substantially visible light and having a length that is shorter than the length of the fluorescent tube to be inserted. A reflecting plate is formed on the tube and on a half-peripheral surface in the longitudinal direction of the inner wall surface of the fluorescent lamp protecting tube, and the opening of the fluorescent lamp protecting tube has substantially the same diameter as the diameter of the fluorescent tube to be inserted. A fixed cap having an insertion opening is attached to a position eccentric to one side from the center position of the opening, and the other opening has the same diameter as the diameter of the fluorescent tube to be inserted. An insertion opening is formed at a position eccentric to one side of the center of the fluorescent lamp, and a movable cap that is slidable in the longitudinal direction of the fluorescent lamp protection tube is attached so that the fluorescent tube is positioned by the fixed cap and the movable cap. Fluorescent lamp with movable cap It is a protection tube.

Since a reflection plate is formed on the inner wall surface of the protective tube on a half circumferential surface thereof, the reflection efficiency of the emitted light of the fluorescent tube is improved. In addition, since a slidable movable cap is attached to the opening of the protective tube, it is easy to insert a straight tube type fluorescent tube, and it is difficult to remove the fluorescent tube. When the fluorescent tube is inserted and attached to the terminal receiving portion of the fluorescent lamp main body, the ends of both caps of the fluorescent lamp protecting tube are in close contact with the terminal receiving portions of the fluorescent lamp main body, respectively. The tube can be securely mounted on the fluorescent light. Therefore, it is possible to prevent the fluorescent tube from accidentally dropping, or to prevent scattering of the fluorescent tube even when it falls.

[0008] A second device to be registered is that a fluorescent lamp heat-insulating tube is designed to absorb ultraviolet light, which transmits substantially visible light having a wavelength longer than 430 nm, with respect to a light source that generates light including ultraviolet rays. The fluorescent lamp protective tube with a movable cap according to claim 1, wherein the fluorescent lamp protective tube is formed so as to contain an agent.

This invention is formed by molding with a cylindrical protective tube that covers the entire fluorescent tube, and is formed of a material that substantially transmits visible light. Plastic materials may be used, but polycarbonate materials and UV absorbers such as Iupilon (manufactured by Mitsubishi Engineering-Plastics Co., Ltd.) are mixed and molded to obtain visible light transmittance and ultraviolet light absorption. Are suitable. For this reason, the fluorescent lamp protection tube has a good light transmittance and a good absorption spectrum of ultraviolet light and infrared light with respect to the light generated from the light source, so that visible light is substantially transmitted but the fluorescent light is transmitted. It can prevent fading of objects such as furniture and equipment illuminated by light lamps, suppress the cause of collecting insects such as flying insects, and crack the surface of the protective cylinder due to long-term use. Can be prevented.

[0010]

【Example】

 Hereinafter, the fluorescent lamp protection tube with a movable cap according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of a fluorescent lamp protection tube according to the present invention, FIG. 2 is a cross-sectional view for explaining the operation of a fluorescent lamp apparatus equipped with the fluorescent lamp protection tube according to the present invention, and FIG. FIG. 4 is a longitudinal sectional view showing a state where a fluorescent tube is inserted into a tube and mounted on a fluorescent lamp, and FIG. 4 is a longitudinal sectional view of a movable cap of the fluorescent lamp protecting tube.

In FIG. 1, reference numeral 1 denotes a case main body of a fluorescent lamp appliance in which a ballast and the like are built. The case main body 1 is provided with a reflector 2 for efficiently irradiating light from a light source. Terminal receiving portions 3a and 3b of the fluorescent tube 4 are formed at both ends of the case body 1 so as to extend therefrom. In addition, a straight tube type fluorescent tube 4 is attached between the terminal receiving portions 3a and 3b so as to be surrounded by the reflection plate 2.

Reference numeral 5 denotes a long fluorescent lamp protection tube which is inserted between the terminal receiving portions 3a and 3b by inserting the fluorescent tube 4 of a straight tube type, and has a length shorter than the length of the fluorescent tube 4 to be inserted. The openings 5a and 5b are formed at both ends thereof. Further, for example, a 40 W general straight tube type fluorescent tube 4 has a tube diameter of 32.5 mm and a length of 1198 mm, so that the diameter of the protective tube 5 is 45 mm to 50 mm and the length is 1150 mm. It may be up to 1170 mm.

The fluorescent lamp protection tube 5 is formed of a polycarbonate cylinder that covers the entire fluorescent tube 4 and contains an ultraviolet absorber that transmits visible light. As an ultraviolet absorber to be mixed, Iupilone (manufactured by Mitsubishi Engineering-Plastics Co., Ltd.) is suitable from the viewpoints of visible light transmittance and ultraviolet light absorption. Since the fluorescent lamp protective tube 5 contains an ultraviolet absorber, the amount of ultraviolet light having a wavelength of 300 nm to 400 nm leaking from the fluorescent lamp protective tube 5 to the outside is reduced, and the light emitted from the light source is While the transmittance is good, the absorption spectrum of ultraviolet and infrared rays is also good, and visible light is substantially transmitted, but the fading of objects such as furniture and equipment illuminated by the fluorescent tube 4 is prevented. At the same time, the cause of collecting insects by flying insects can be suppressed. The length and diameter of the fluorescent lamp protection tube 5 are naturally formed so as to match the size of the fluorescent tube 4.

The openings 5a and 5b of the fluorescent lamp protection tube 5 have substantially the same diameter as the tube diameter of the fluorescent tube 4 to be inserted, and are located at positions eccentric to one side from the center position of the opening 5a. A fixed cap 6 having an insertion opening 6a is attached, and the other opening 5b has substantially the same diameter as the fluorescent tube 4 to be inserted, and is eccentric to one side from the center position of the opening 5b. An insertion opening 7b is formed at the position thus set, and a movable cap 7 slidable in the longitudinal direction of the fluorescent lamp protection tube 5 is attached. The sliding range of the movable cap 7 may be such that the fluorescent tube 4 can be easily inserted into the fluorescent lamp protection tube 5 and the fluorescent tube 4 does not fall off accidentally after insertion. It is in the range of about 2-3 cm.

Then, the fluorescent tube 4 is inserted into the fluorescent lamp protection tube 5 and attached between the two terminal receiving portions 3a and 3b of the case main body 1. Both terminals of the fluorescent tube 4 are connected to the two terminal receiving portions 3a. , 3b, the fixed cap 6 side is brought into close contact with one terminal receiving portion 3a, and the other movable cap 7 is slid and attached to the other terminal receiving portion 3b. Therefore, the fluorescent tube 4 is positioned within the fluorescent lamp protection tube 5 and can also be positioned and mounted between the terminal receiving portions 3a and 3b of the case body 1.

A reflective plate 8 is formed on an inner wall surface portion 5 c of the fluorescent lamp protection tube 5 on a half circumferential surface portion in the longitudinal direction. The reflection plate 8 is formed by laminating an aluminum plate and a transparent resin, and bending the aluminum reflection plate causes interference fringes on the aluminum plate surface to reduce the reflection efficiency. By sticking a resin film, it is possible to prevent the reflection efficiency of the reflection plate 8 from being lowered.

When the fluorescent tube 4 is inserted into the fluorescent lamp protection tube 5, the insertion openings 6 a and 7 a serving as positioning members for the fluorescent tube 4 are respectively located on one side on the back side of the center positions of the openings 5 a and 5 b. As shown in FIG. 2, the radiated light from the light source of the fluorescent tube 4 is efficiently reflected and radiated by the reflector 8 formed on the inner wall 5c as shown in FIG. The reason why the insertion openings 6a and 7a are formed at eccentric positions is that the positions of the two terminal receiving portions 3a and 3b attached to both ends of the case body 1 are generally standardized as a fluorescent lamp device. This is because, when the fluorescent tube 4 is mounted between the terminal receiving portions 3a and 3b, the mounting location is restricted due to the positional relationship between the fluorescent tube 4 and the reflector 2.

[0018]

[Effect of the invention]

 The first invention to be registered is a fluorescent lamp protection having an opening formed of a material that transmits substantially visible light and having a length that is shorter than the length of the fluorescent tube to be inserted. A reflector is formed on the tube and a half-peripheral surface portion of the fluorescent lamp protective tube in the longitudinal direction, and the opening of the fluorescent lamp protective tube has substantially the same diameter as the diameter of the fluorescent tube to be inserted. A fixed cap with an insertion opening is attached at a position eccentric to one side of the center of the tube, and the other opening is approximately the same diameter as the fluorescent tube to be inserted, and the opening is An insertion opening is formed at a position eccentric to one side of the center of the tube, a movable cap that is slidable in the longitudinal direction of the fluorescent lamp protective tube is attached, and the fluorescent tube is inserted into this fluorescent lamp protective tube. The fluorescent tube attached by the fixed cap and the movable cap Unishi was a movable cap with a fluorescent lamp protective tube.

Since a reflection plate is formed on a half peripheral surface of the inner wall surface of the protective tube, the reflection efficiency of the emitted light of the fluorescent tube is improved. In addition, a slidable movable cap is attached to the opening of the protective tube, so that it is easy to insert a straight tube type fluorescent tube and it is difficult to remove it. When attached to the terminal receiving part, the ends of both caps of the fluorescent lamp protection tube are in close contact with both terminal receiving parts of the fluorescent lamp body, so that the fluorescent tube can be securely attached to the fluorescent lamp. . Therefore, it is possible to prevent the fluorescent tube from being accidentally dropped or to prevent the fluorescent tube from being scattered even if it is dropped.

The second invention to be registered is that the fluorescent lamp protection tube is capable of absorbing ultraviolet light that transmits substantially visible light having a wavelength longer than 430 nm to a light source that generates light including ultraviolet rays. The fluorescent lamp protective tube with a movable cap according to claim 1, wherein the fluorescent lamp protective tube is formed so as to contain an agent.

In the present invention, the fluorescent lamp protection tube is formed of a material through which visible light is substantially transmitted, while being molded with a cylindrical protection tube that covers the entire fluorescent tube. In contrast, while the light transmittance is good, the absorption spectrum of ultraviolet and infrared rays is also good, so that visible light is substantially transmitted, but objects such as furniture and equipment that are illuminated by fluorescent lamps It is possible to prevent fading of the water, to prevent the cause of collecting insects such as flying insects, and to prevent the occurrence of cracks and the like on the cylinder surface even after long-term use.

[Brief description of the drawings]

FIG. 1 is a perspective view of a fluorescent lamp protection tube according to the present invention.

FIG. 2 is a cross-sectional view illustrating the operation of the fluorescent lamp apparatus to which the fluorescent lamp protection tube according to the present invention is attached.

FIG. 3 is a longitudinal sectional view showing a state where a fluorescent tube is inserted into a fluorescent lamp protection tube and mounted on the fluorescent lamp.

FIG. 4 is a longitudinal sectional view of a movable cap of the fluorescent lamp protection tube.

FIG. 5 is a cross-sectional view showing a state of attachment of a fluorescent tube of a conventional fluorescent lamp device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fluorescent lamp main body 2 Reflector 3a, 3b Terminal receiving part 4 Fluorescent tube 5 Fluorescent lamp protection tube 5a, 5b Opening 6 Fixed cap 6a, 7a Insertion opening 7 Movable cap 8 Reflector

Claims (2)

[Utility model registration claims] 1. A fluorescent lamp protection tube formed of a material that substantially transmits visible light and having an opening that is long and shorter than the length of a fluorescent tube to be inserted. A reflective plate is formed on the semicircular surface in the longitudinal direction of the inner wall surface of the fluorescent lamp, and the opening of the fluorescent lamp protective tube has substantially the same diameter as the diameter of the fluorescent tube to be inserted, and is located at one side from the center position of the opening. A fixed cap having an insertion opening formed at an eccentric position is attached. The other opening has a diameter substantially equal to the diameter of the fluorescent tube to be inserted, and a position eccentric to one side from the center position of the opening. A movable cap that is slidable in the longitudinal direction of the fluorescent lamp protection tube, and the fluorescent tube is positioned by the fixed cap and the movable cap. Light protection tube. 2. A fluorescent lamp protecting tube is formed so as to contain an ultraviolet absorber that substantially transmits visible light having a wavelength longer than 430 nm with respect to a light source that generates light containing ultraviolet light. The fluorescent lamp protection tube with a movable cap according to claim 1.