JP4206689B2 - Lamp coating device and lighting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lamp coating device that covers a lamp and a lighting device including the lamp coating device.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, for example, a configuration in which a straight tube fluorescent lamp is covered with a light-transmitting pipe to keep heat and waterproof is known. In such a configuration, in the configuration in which the fluorescent lamp is inserted inside the simple cylindrical pipe, there is a gap between the pipe and the fluorescent lamp, and the positions of the pipe and the fluorescent lamp are not fixed. There is a problem that the work of attaching and detaching the fluorescent lamp inserted into the lighting fixture becomes complicated.
[0003]
In this regard, for example, as shown in the specification of WO00 / 68613, a configuration is known in which cylindrical caps made of an elastic material are attached to both ends of a pipe to position the pipe and the fluorescent lamp. In this configuration, the cap is fitted between the inner peripheral portion of the pipe and the outer peripheral portion of the cap portion of the fluorescent lamp, and a part projects from the outer shape of the pipe to the outer peripheral side.
[0004]
[Problems to be solved by the invention]
In the configuration in which the cap is fitted to the cap portion of the fluorescent lamp as in the conventional case, when the fluorescent lamp is inserted into a pipe to which the cap is previously attached, the fluorescent lamp presses the cap and the cap comes off from a predetermined position. Have a problem. In addition, a waterproof socket with a cylindrical cap portion may be used to enhance waterproofness. However, in a configuration in which the cap protrudes to the outer peripheral side of the pipe, this cap abuts to attach the fluorescent lamp to the waterproof socket. There is a problem that can not be attached to.
[0005]
SUMMARY An advantage of some aspects of the invention is that it provides a lamp coating apparatus that can be mounted on a lamp with good workability and an illumination device including the lamp coating apparatus.
[0006]
[Means for Solving the Problems]
The lamp covering device according to claim 1 is a translucent pipe that covers the arc tube of the lamp so as to be spaced apart from the arc tube; an outer peripheral surface portion that is in close contact with the inner peripheral surface of the pipe, and an inner surface that opposes the outer peripheral portion of the lamp. A cylindrical main body having a peripheral surface portion, and an outer peripheral surface portion and an inner peripheral surface of a pipe are in close contact with the outer peripheral portion of the arc tube of the lamp protruding from the inner peripheral surface portion of the main body portion and having a diameter larger than that of the lamp cap. An inner protrusion closely contacting with an area smaller than the inner area, and a part of the outer peripheral surface corresponding to the inner protrusion and opposite to the inner protrusion relative to the thickness direction of the main body. An outer concave portion that is inclined so as to be deeper toward the end portion on the side where the arc tube is inserted and is recessed on the inner peripheral side, and is attached to both end portions of the pipe and is formed to be elastically deformable. And a cap.
[0007]
In this configuration, the cap protrudes from the inner peripheral surface portion of the main body portion so that the inner protrusion abuts the outer peripheral portion of the arc tube having a larger diameter than the base portion. The frictional resistance between the cap and the pipe increases, the cap is less likely to get caught on the lamp, and it is possible to insert the lamp into the pipe while holding the cap in place on the pipe. Will improve. The cap is formed to be elastically deformable, and corresponds to the inner protrusion, and is located on a part of the outer peripheral surface portion on the opposite side of the inner protrusion with respect to the thickness direction of the main body, and Because it has an outer recess that is inclined so that its depth increases toward the end on the side into which it is inserted and is recessed on the inner peripheral side, and a space is formed in a part between the cap and the pipe When the lamp comes into contact with the cap, the cap is easily deformed to reduce the frictional resistance, and the workability of attaching / detaching the lamp is improved.
[0008]
For example, the lamp is a straight tube fluorescent lamp, the pipe is made of a straight tubular cylindrical polycarbonate, and the cap is made of elastically deformable silicon. Moreover, the inner side protrusion part is formed in the annular | circular shape which follows the perimeter of the circumferential direction, for example .
[0009]
Lighting apparatus of claim 2, an instrument body having a socket paired; lamp and a straight tube fluorescent lamp attached to between the socket; and the lamp cover according to claim 1, wherein covering the lamp; the It is equipped.
[0010]
Then, in this configuration, since with the lamp cover according to claim 1, wherein, to improve the workability to desorb the lamp cover device to the lamp.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a lamp coating apparatus of the present invention will be described with reference to the drawings.
[0012]
FIG. 1 is a side view in which a part of an illuminating device showing an embodiment of the lamp covering device of the present invention is cut out and enlarged, and FIG. 2 is a perspective view in which a part of the illuminating device is cut out. FIG. 3 is a side view in which a part of the illumination device is cut out, and FIG. 4 is a perspective view of the cap.
[0013]
In the figure, reference numeral 11 denotes a lighting device, and the lighting device 11 includes a fixture main body 12, a lamp FL and a lamp coating device 15 attached to the fixture main body 12. The appliance body 12 includes a chassis 16 that is attached to an installation part such as a ceiling surface, electrical components such as an inverter circuit and a base that are housed in the chassis 16, and a pair of sockets that are attached to both ends of the chassis 16. 18 and. These sockets 18 are waterproof lamp sockets having a function such as moisture proof or rain proof, that is, so-called waterproof sockets. A socket main body 19 fixed to the chassis 16 and a cylindrical shape attached by screwing into the socket main body 19 or the like. And a rubber packing and a slip ring sandwiched between the socket main body 19 and the cap portion 20. The lamp FL is a general straight tube fluorescent lamp having a diameter of 25 mm or 32 mm, and includes a light emitting tube 22 which is a straight tubular glass tube, and a metal tube located at both ends of the light emitting tube 22. And a base part 23. Each base part 23 is formed to have a slightly smaller diameter than the arc tube 22, and a pair of base pins 24 project from both ends.
[0014]
The lamp covering device 15 can also be called a fluorescent lamp covering device, and includes a pipe 31 and a pair of caps 33 attached to both ends of the pipe 31. The pipe 31 is also called a tube, and is formed in a cylindrical shape that is made of a translucent material, for example, transparent polycarbonate, and can accommodate the lamp FL inside. The inner diameter of the pipe 31 is formed to be larger than the outer diameter of the lamp FL, that is, the outer dimension of the arc tube 22. The cap 33 is also called a packing or a pipe cap, and the whole including the cylindrical main body 35 is integrally formed of an elastically deformable material such as silicon. Then, from the inner peripheral surface portion 35a of the main body portion 35, from the vicinity of one end portion along the axial direction to the inner peripheral side, the inner protrusion 36 having a semicircular cross section is continuous in the circumferential direction, that is, circles around the entire circumference. It protrudes in an annular shape. In addition, the outer peripheral surface portion 35b of the main body portion 35 is recessed from the one end portion along the axial direction to a plurality of locations intermittently in the circumferential direction, and in this embodiment, to five locations toward the inner circumferential side. An outer recess 38 is formed. Each outer recess 38 is disposed at a position corresponding to the inner protrusion 36, i.e., on the opposite side of the inner protrusion 36 with respect to the thickness direction of the main body 35, and at one end of the main body 35. Inclined so that the depth becomes deeper and cut into a rectangular shape. Further, from the other end portion of the outer peripheral surface portion 35b, a locking projection 39 is provided so as to protrude outwardly from the other end portion, continuously in the circumferential direction, that is, in an annular shape around the entire circumference. Further, the protrusion dimension of the locking protrusion 39 is formed to be equal to or smaller than the thickness dimension of the pipe 31.
[0015]
The lamp covering device 15 press-fits caps 33 inside both ends of the pipe 31, positions the locking projection 39 in contact with the end surface of the pipe 31, and places the outer peripheral surface portion 35b inside the pipe 31. It is configured in a state of being in close contact with the surface.
[0016]
Then, by inserting the lamp FL from one of the openings of the lamp covering device 15 formed in this way, the inner protrusions 36 of the caps 33 at both ends come into linear contact with the arc tube 22, and the arc tube 22 The lamp FL and the lamp coating device 15 are combined with the pipe 31 facing each other at a predetermined interval similar to the entire circumference.
[0017]
Then, the lamp FL combined with the lamp covering device 15 is mounted between the socket main bodies 19 of the sockets 18 facing each other, and the cap portion 20 is tightened to attach the lamp FL and the lamp covering device 15 to the fixture main body 12. .
[0018]
In this state, the lamp FL is substantially liquid-tightly covered by the pipe 31 and the socket 18, and has a waterproof effect, that is, a moisture proof and rain proof effect. Play.
[0019]
Then, according to the present embodiment, the cap 33 is press-fitted inside the pipe 31, and the outer peripheral surface portion 35b is firmly attached to the inner surface of the pipe 31 in a planar manner, and is projected from the inner peripheral surface portion 35a. Since only the inner projecting portion 36 is linearly in close contact with the arc tube 22 of the lamp FL, the friction resistance between the pipe 31 and the cap 33 is larger than the friction resistance between the lamp FL and the cap 33, and the cap 33 does not get caught in the lamp FL. Therefore, when the lamp FL is inserted into the pipe 31 to which the cap 33 is attached, the lamp FL can smoothly slide with respect to the cap 33, and the position of the cap 33 can be prevented from being displaced or removed. The workability of desorption can be improved.
[0020]
In addition, since the inner protrusion 36 is formed as an annular protrusion that continues to the entire circumference in the circumferential direction of the cap 33, the contact surface between the cap 33 and the lamp FL is reduced to reduce the frictional resistance. The detachability can be improved and the lamp FL can be stably supported.
[0021]
Furthermore, the cap 33 is formed in a part between the cap 33 and the pipe 31 in a state in which a part of the main body part 35 is formed thin and an outer recess 38 is formed in the outer peripheral surface part 35b and is attached to the pipe 31. Since the space is provided, when the lamp FL is mounted, the cap FL is easily deformed when the lamp FL is pressed against the cap 33, and the cap 33 is easily deformed. Can reduce the frictional resistance. Therefore, it is possible to prevent the position of the cap 33 from shifting or coming off, and to improve the workability of attaching / detaching the lamp FL. That is, in the configuration in which the frictional resistance between the lamp and the cap is large, the cap is easily detached when the lamp is inserted, and in the configuration in which the cap abuts the base portion, the cap portion is more The arc tube having a large diameter is in contact with the cap and the cap is easily detached.
[0022]
Further, by making the length dimension of the cap 33 along the axial direction smaller than the length dimension of the cap portion 23 of the lamp FL, it becomes difficult for the cap 33 to protrude from the end portion of the lamp FL. Can be easily and securely attached.
[0023]
In the above embodiment, the locking projection 39 is provided at the end of the cap 33. However, the locking projection 39 can be omitted.
[0024]
In addition, the configuration in which the space portion is formed between the cap 33 and the pipe 31 is not limited to the rectangular outer concave portion 38 provided at the five locations as described above, and may be, for example, four locations. It can also be set as the shape.
[0025]
Further, in the above-described embodiment, the waterproof socket having the cap portion 20 and the like has been described as the socket 18. However, the present invention is not limited to this configuration, and a normal socket having no cap portion and the like can also be used. This configuration is effective, for example, for the heat insulation of the fluorescent lamp that is easily cooled by the air blow of the air conditioner .
[0026]
【The invention's effect】
According to the lamp covering apparatus of the first aspect, since the inner protrusion projecting from the inner peripheral surface portion of the main body abuts on the outer peripheral portion of the arc tube having a larger diameter than the base portion, the cap and lamp The frictional resistance between the cap and the pipe is larger than the frictional resistance between the cap and the cap, making it difficult for the cap to get caught in the lamp. The lamp can be inserted into the pipe while the cap is held in place on the pipe, and the lamp is removed Can be improved. Further, the cap is formed to be elastically deformable and corresponds to the inner protrusion, and is located on a part of the outer peripheral surface portion on the opposite side of the inner protrusion with respect to the thickness direction of the main body. It has an outer recess that is inclined so that its depth increases toward the end on the side where the arc tube is inserted and is recessed on the inner peripheral side, and a space is formed in a part between the cap and the pipe. Therefore, when the lamp comes into contact with the cap, the cap is easily deformed to reduce the frictional resistance, and the workability for attaching and detaching the lamp can be improved .
[0027]
According to the illuminating device of the second aspect, since the lamp covering device according to the first aspect is provided, the workability of attaching and detaching the lamp covering device to the lamp can be improved.
[Brief description of the drawings]
FIG. 1 is a side view in which a part of a lighting device showing an embodiment of a lamp coating device of the present invention is cut away and enlarged.
FIG. 2 is a perspective view in which a part of the illumination device is cut away.
FIG. 3 is a side view in which a part of the illumination device is cut away.
FIG. 4 is a perspective view of the cap .
[Explanation of symbols]
11 Lighting equipment
12 Instrument body
15 Lamp coating equipment
18 socket
22 arc tube
23 Base
31 pipe
33 cap
35 Main unit
35a Inner peripheral surface
35b Outer peripheral surface
36 Inner protrusion
38 Outer recess
FL lamp

Claims (2)

A translucent pipe covering the arc tube of the lamp spaced apart from the arc tube;
A cylindrical main body portion having an outer peripheral surface portion closely contacting the inner peripheral surface of the pipe and an inner peripheral surface portion facing the outer peripheral portion of the lamp, and projecting from the inner peripheral surface portion of the main body portion and having a larger diameter than the base portion of the lamp An inner protrusion that is in close contact with the outer peripheral portion of the lamp arc tube in an area smaller than the area where the outer peripheral surface portion and the inner peripheral surface of the pipe are in close contact, and an inner protrusion corresponding to the inner protrusion with respect to the thickness direction of the main body. It is located on a part of the outer peripheral surface part on the opposite side of the part, and is inclined so as to be deeper toward the end part on the side where the arc tube of the lamp of the main body is inserted, and is recessed on the inner peripheral side A cap having an outer recess and attached to both ends of the pipe and formed to be elastically deformable ;
A lamp coating apparatus comprising: An instrument body with a pair of sockets;
A lamp which is a straight tube fluorescent lamp mounted between the sockets;
A lamp cover according to claim 1, wherein the cover ramp;
An illumination device comprising:

Images