JPH0643933Y2 - Lamp attachment / detachment structure for lighting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a lamp attachment / detachment structure for a lighting fixture using a straight tube fluorescent lamp.

[Prior Art] FIG. 14 shows a conventional lighting fixture of this type, in which sockets 43 are arranged at both ends of the lower surface of the main body 41.
A lamp 42, which is a straight tube fluorescent lamp, can be detachably attached. Further, as shown in FIG. 16, a glow starter 44 as a lighting device for lighting the lamp 42 is provided at one end of the main body 41, and end caps 45 are provided at both ends. The main body 41 is approximately the same size as the lamp 42, and is a box-shaped long object having an open lower surface, and the lamp 42 is housed in the main body 41. Further, a shade 46 is provided on the upper surface side of the main body 41. The main body 41 and the shade 46 are suspended from the ceiling surface by a wire 47. Also wire
An adjustment knob 48 for height adjustment is provided on the upper portion of 47.

The attachment / detachment of the lamp 42 in such a conventional lighting fixture is performed as follows. First, as shown in FIG. 15, the end cap 45 is removed horizontally from the main body 41 and the shade 46 side, and then, as shown in FIG. 16, the main body 41 and the shade 46 are separated via a wire 47. Separate vertically. Then, the lamp 42 is removed from the socket 43. The same applies when the lamp 42 is mounted.

[Problems to be Solved by the Invention] In such a conventional example, it is necessary to remove the end caps 45 on both sides when attaching and detaching the lamp 42 (2
Since it is necessary to separate the shade 46 and the main body 41, the internal lead wire may be exposed to the outside, and the lead wire may be damaged. Therefore, it is not always easy to attach and detach the lamp 42, and there has been a problem that the replacement work of the lamp 42 is difficult especially at a high place. Furthermore, the end cap 45 must be removed horizontally and outwardly, which makes continuous mounting of the luminaire difficult.
Further, there is a problem that it is difficult to mount the end cap 45 on the wall surface.

The present invention has been provided in view of the above points, and provides a lamp attachment / detachment structure for a lighting fixture, which is intended to facilitate the attachment / detachment of a lamp and also facilitate the continuous attachment and the attachment to the wall side. It is provided.

[Means for Solving the Problem] The present invention is to fix a main body having a lamp mounted on a lower surface side which is detachably mounted by being rotated in a socket, to a lower surface of a shade, and at the time of attaching and detaching the lamp, the main body is operated from the shade. A fixing means for exposing the lower part to the outside is provided.

[Operation] Therefore, according to the present invention, when the lamp is attached or detached, the fixing means is operated to expose the main body to the outside below the shade, and the lamp is rotated with respect to the socket to attach or detach the lamp. There is.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings. FIG. 3 and FIG. 4 show the whole of the luminaire, the lamp 2 uses a straight tube fluorescent lamp, and the main body 1 to which the lamp 2 is mounted is almost the same size as the lamp 2 and has a long length. The lower surface of the scale is formed into a box shape with an opening. Metal fittings 4 are attached to the lower surfaces of both ends of the main body 1 by screws 3, and sockets 5 are attached to the inner side surfaces of the metal fittings 4. The pin of the lamp 2 is attached to the socket 5, and the pin is rotatable and detachably attached. When the lamp 2 is attached to the socket 5 in the main body 1, the inner surface of the main body 1 and the outer surface of the lamp 2 are narrow and cannot be accessed.

The shade 6 covering the upper surface of the main body 1 and the main body 1 are fixed as follows. That is, as shown in FIGS. 2 and 4, through holes are formed at both ends of the shade 6, and mounting screws 7 are inserted through the through holes, and screw holes 8 are screwed into both ends of the main body 1. The main body 1 and the shade 6 are connected to each other with the mounting screw 7. Here, the mounting screw 7 has a large diameter knob portion 7a located on the upper surface of the shade 6, a screw portion 7b screwed into a screw hole 8 below the knob portion 7a, and a screw portion 7b.
The lower diameter portion 7c is formed with a lower diameter portion 7c, and a catch 9 for preventing the body 1 from falling is attached to the lower end of the diameter portion 7c, which is larger than the diameter of the screw hole 8 of the body 1. In addition, the mounting screw 7
The spring 10 is inserted between the lower surface of the shade 6 and the upper surface of the main body 1 by inserting the spring 10. The mounting screw 7 and the spring 10 constitute a fixing means.

An end cover 11 having a substantially U-shaped cross section as shown in FIG. 5 is attached to the end portion of the main body 1. Protrusions 11a are provided on the upper portions of both side pieces of the end cover 11,
The protrusions 11a are formed on both sides of the end of the main body 1 and are fitted in the slits (or recesses) 12, so that the end cover 11 can be detachably attached to the main body 1. The end cover 11 covers the socket 5 as shown in FIG. Further, a groove 13 is formed at the end of the bottom of the end cover 11 on the lamp 2 side, and the pin of the lamp 2 is inserted into the groove 13 when the lamp 2 is attached or detached.
As shown in FIG. 6, protrusions 15a and 15b are provided on the upper portion of the circular end cap 14, and the protrusions 15a and 15b are fitted in the holes at the ends of the shades 6 to form the end cap. 14 is detachably attached to the shade 6.

A square flange 16 having a lighting device 17 for lighting the lamp 2 is formed in the center of the upper surface of the shade 6, and the flange 16 and a substantially U-shaped instrument mounting plate 18 are provided on the sides. The lighting fixture is fixed by connecting and fixing with the screw 19 and fixing the fixture mounting plate 18 with the fixing screw 20 to the ceiling surface or the like.

Next, the attaching / detaching operation of the lamp 2 will be described. First, as shown in FIG. 2 (a), when the knob 7a of the mounting screw 7 located on the upper surface of the shade 6 is pinched and the mounting screw 7 is loosened, the end cover 11, the socket 5 and the lamp 2 are integrated. As shown in FIG. 1, the attached body 1 is pushed out by the elastic force of the spring 10 to the outside below the end cap 14. Since the structure of this mounting screw 7 is a symmetrical mounting structure at both ends of the luminaire, a hinge system is used at the spring 10 part, and by operating the mounting screw 7 at either one of the left and right sides, as shown in FIG. As shown, the end of the body 1 can be pushed out. Next, the lamp 2 is rotated by 90 degrees, and the pin of the lamp 2 is passed through the groove 13 formed in the end cover 11 to remove the lamp 2. The lamp 2 is attached in the reverse order of the above procedure.

In this way, the lamp 2 can be attached and detached without removing the end cap 14, and therefore,
Even if the end of the luminaire is on the wall side, the luminaire can be mounted, and the luminaire can be continuously mounted. As shown in FIG. Can be easily done. Further, since the attachment / detachment structure of the lamp 2 uses two symmetrical mounting screws 7, the lamp 2 can be replaced on either the left or right side of the luminaire, especially for a long and narrow luminaire. If so, that is, even if both hands are opened or both ends of the luminaire cannot be reached, the merit is further increased. Also,
The lamp 2 can be replaced by operating only one of the two mounting screws 7 on the left and right, so that the operability of attaching and detaching the lamp 2 is further improved. Furthermore, since the lamp 2 is attached / detached to / from the socket 5 not by the left and right spring pressing type but by a rotating type, there is no fear that an excessive force is applied when the lamp 2 is replaced. Further, since the spring 10 is interposed between the main body 1 and the shade 6, the socket 5 is pushed out to the outside by the spring 10 when mounting the lighting fixture on the wall or floor. Therefore, replacement of the lamp 2 is easier to understand and easier to operate. That is, it is possible to save the trouble of pulling out the socket 5 by hand.

FIG. 8 shows a second embodiment, in which a mounting piece 21 is vertically provided from the lower surface of the end portion of the shade 6, and a spring piece 22 is formed substantially at the center of the mounting piece 21. A hole for inserting the attachment piece 21 is bored in the end portion of the main body 1, and the hole of the main body 1 passes over the spring piece 22 of the attachment piece 21, so that the fixed position shown in FIG. The positions can be set at the time of replacement of the lamp 2 shown in b). That is, when the lamp 2 is attached or detached, the main body 1
By pulling down, the portion of the socket 5 is exposed to the outside below the main body 1, and the lamp 2 is attached and detached.

9 and 10 show Embodiment 3 in which the socket base 26 to which the socket 5 is attached is pushed down by the operating metal fitting 25 so as to be exposed to the outside. The upper portion 5a of the socket 5 is fitted into the opening 26a of the socket base 26 through the slit 5b, and is attached to the lower surface of the main body 1 to support the socket base 26. A long hole 28 is bored in the vertical direction. A hole 29 drilled at the tip of the U-shaped operation metal fitting 25, a long hole 28 of the support 27, and a pin 31 of a hole 30 of the socket base 26 are inserted respectively to rotatably connect the three members. is doing. Further, each side piece of the U-shaped guide metal fitting 32 has a circular arc hole 33 bored therein, and the circular arc hole 33 and the pin 34 of the base side hole 34 of the operation metal fitting 25 are inserted to turn the both. It is movably connected. Further, an operation piece 36 is integrally formed on the base of the operation fitting 25.

In the state where the lamp 2 is positioned inside the main body 1, as shown in FIG. 9 (a), the operating fitting 25 is inclined and the pin 31 is positioned at the upper end of the slot 28 of the support 27. , The pin 35 is located at the lower end of the arc hole 33 of the guide fitting 32, and the operating piece 36 of the operating fitting 32 projects outward from the lower surface of the main body 1. In order to push the lamp 2 out of the lower part of the main body 1, the operation piece 36 is pushed in the direction of the arrow shown in FIG.
It is moved to the upper end along 33, and the operating metal fitting 25 is rotated in the opposite direction to the above as shown in FIG. 9 (b). The pin 31 is moved to the lower end of the long hole 28 of the support 27 in accordance with the rotation of the operation fitting 25, so that the socket base 26 is pushed downward from the main body 1 to the outside to replace the lamp 2. Lamp 2
After the replacement, the operation piece 36 can be rotated in the opposite direction to the above.

FIG. 11 and FIG. 12 show Example 4 in order to make the lamp socket part invisible in order to improve the appearance of the device.
The end cover 11 is formed so as to extend to the lamp 2 side. As in the previous embodiment, the lamp 2 is attached with the mounting screw 7 and the spring 10.
The end cover 11 is pushed out to the outside of the main body 1 by the above, and the end cover 11 is projected to the lamp 2 side. Therefore, the end cover 11 is shifted in the horizontal direction (end cap 14 side). Replace the lamp 2.

FIG. 13 shows a fifth embodiment, in which a shade 6 is attached to a flange 16 via a kick spring 37 so as to be vertically movable. To replace the lamp 2, the shade 6 is pulled down from the flange 16.

[Advantage of the Invention] As described above, the present invention secures the main body with the lamp mounted on the top side by rotating the socket to be detachably mounted, to the lower surface of the shade, and at the time of attaching and detaching the lamp, the main body is operated from the shade. Since the fixing means for exposing the lamp to the outside below is provided, when attaching or detaching the lamp, the fixing means is operated to expose the main body to the outside below the shade, and the lamp is rotated with respect to the socket so that the lamp is It can be attached and detached, so it is possible to replace the lamp without removing the end cap as in the past, and therefore, even if there is a wall surface on the longitudinal side of the lamp, the lighting fixture can be attached, In addition, it is possible to continuously attach the lighting equipment.

In addition, by forming a groove for inserting the lamp pin at the lamp edge of the end cover that covers the peripheral surface of the socket, the lamp can be rotated and the lamp can be directly inserted through the groove of the end cover. The lamp can be easily attached and detached by inserting the pin.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a lamp replacement according to an embodiment of the present invention, and FIG.
FIGS. (A) and (b) are sectional views and bottom views of the same as above, FIG. 3 is a perspective view of the same as above, and FIG.
5 (a) to 5 (c) are plan views of the same end cover,
FIG. 6 (a) to FIG. 6 (d) are a front view, a left side view, a right side view and a plan view of the end cap of the same, and FIG. 8 (a) and 8 (b) are explanatory diagrams of Embodiment 2 above, respectively, and FIGS. 9 (a) and 9 (b) are explanatory diagrams of Embodiment 3 above, respectively.
FIG. 10 is an exploded perspective view of an essential part of the above, FIG. 11 (a) and (b) are a sectional view and a bottom view of an essential part of Embodiment 4 of the above, FIG. 12 is an explanatory view of the same as above, and FIG. a) and (b) are the same as in the fifth embodiment, respectively.
FIG. 14 is a sectional view of a conventional example, and FIGS. 15 and 16 are explanatory views of the same. 1 is a main body, 2 is a lamp, 5 is a socket, 6 is a shade, 11
Is an end cover, 13 is a groove, and 17 is a lighting device.

Claims (2)

[Scope of utility model registration request] 1. A straight-tube lamp, a main body having a lower opening for accommodating the lamp, which has a lighting device for lighting a straight-tube fluorescent lamp and is approximately the same size as the lamp, and a shade covering the upper surface of the main body. In the lighting device, fixing means for fixing the main body having the lamp mounted on the lower surface side to be detachably mounted by rotating to the socket to the lower surface of the shade and exposing the main body to the outside below the shade by the operation when the lamp is attached or detached. A structure for attaching and detaching a lamp of a lighting fixture, characterized in that 2. The lamp attaching / detaching structure for a lighting fixture according to claim 1, wherein a groove for inserting a pin of the lamp is formed in a key portion of an end edge of the end cover covering the peripheral surface of the socket on the lamp side.