JPS621689Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a lighting fixture for a straight tube fluorescent lamp.

In general, lighting equipment is constructed by fixing socket mounting brackets to the bottom of both ends of a long gutter-shaped fixture body that stores and holds ballasts, switches, etc., and a socket is fixed to these socket mounting brackets. A lighting fixture for 2-light fixtures has a total of two sockets on both ends of the fixture body, and a two-lamp fixture has a total of four sockets, two sockets each facing each other. This type of lighting equipment is usually manufactured in different types, such as for one light, two lights, three lights, etc., with different shapes of the fixture body and socket mounting hardware. When manufacturing different types, the molds used for manufacturing are also different, and the manufacturing cost of the product increases unless it is mass-produced.

Therefore, recently, we have made the main body of the fixture common so that it can be used for 1 light, 2 lights, 3 lights, etc.
There is a tendency to reduce manufacturing costs. However, the current situation is that sharing the main body of the device is accompanied by an increase in the size of the main body of the device, and there is a lot of wasted material, making it difficult to reduce costs.In addition, the cost of packaging materials is high due to the large size of the main body of the device. There were also some problems, and there were few practical benefits from sharing.

The present invention has been made in view of the problems caused by such common use, and provides a lighting fixture in which the main body of the fixture for one light can be used for two or three lights by devising the socket mounting fittings.

The feature of this invention is that a pair of sockets or a supporting part is formed at both ends of the fixture body, which is the same size as the single-lamp fixture body, or a support part is directly attached to the socket mounting bracket, which will be described later, in a removable manner. . The socket mounting metal fittings used have integral socket mounting portions for mounting a plurality of sockets at predetermined intervals. By attaching sockets to the support portions at both ends of the fixture body, it can be used as a single-lamp lighting fixture, and by attaching socket fittings in place of the sockets, it can be used as a multiple-lamp lighting fixture, such as for two lights. In this way, you can use the smallest fixture for one light, one for two lights,
If you are using it for 3 lights, you only need to replace the socket mounting bracket.

The configuration of the present invention will be explained below with reference to embodiments shown in the drawings.

Figures 1 and 2 show the present invention in a single-lamp lighting fixture A.
Figures 3 and 4 show an example in which the present invention was used as a two-lamp lighting fixture B, in which 1 is a fixture body with the same shape and size as the single-light fixture body; 2 is a socket, 3 is a socket fitting, and 4 is a straight tube fluorescent lamp. In the case of lighting fixture A for one light, a pair of sockets 2 are attached to both ends of the fixture body 1, and in the case of lighting fixture B for two lights, a pair of sockets 2 are attached in advance to both ends of the fixture body 1. Attach the socket mounting bracket 3. In each of these embodiments, the socket 2 and the socket attachment fittings 3 are attached to the instrument body 1 via support fittings 5 which are integrally fixed to both ends of the instrument body 1 in advance.

A specific example of the support fitting 5 will be explained with reference to FIGS. 5 to 8. This is fitted into the end of the instrument main body 1 having a U-shaped cross section, and the end side plates 1' of the instrument main body 1 are , 1', and an end plate 7 forming an end surface of the instrument body 1;
and a pair of rib-shaped symmetrical bottom plates 8, 8 along both sides of the end of the instrument body 1. At the corner portions of the bottom plates 8, 8 and the end plate 7, symmetrical support parts 9, 9 that directly support the socket 2 and the socket mounting bracket 3 are protruded, and at the front ends of the bottom plates 8, 8, there are approximately
Spring-strength stop strips 10, 10 are integrally formed after being bent at 90° and extending substantially parallel to the bottom plates 8, 8 to the vicinity of the supports 9, 9. The front end surfaces of the bottom plates 8, 8 are formed into tapered end surfaces 11, 11 that widen from the stop strips 10, 10 toward the side plates 6, 6.
Further, cut-and-raised projecting pieces 12, 12 are integrally provided on a part of the outer surface of the side plates 6, 6 and extend rearward approximately parallel to the side plates 6, 6, and correspondingly, the side plates 1', 1' is provided with locking holes 13, 13. That is, as shown in FIGS. 8 and 9, the support fitting 5 is inserted into the end of the instrument body 1 in an inclined state, and the cut and raised protrusions 12, 12 are inserted into the locking holes 13, 1.
3 into the wide parts 13', 13', then change the posture of the support metal fitting 5 parallel to the instrument body 1, pull it a certain stroke, cut and raise the protruding pieces 12, 12 into the locking holes 13, 13. Fit it into the narrow parts 13″, 13″,
At this time, the side plates 1', 1' of the instrument main body 1 are elastically clamped by the cut and raised protrusions 12, 12 and the side plates 6, 6, and the supporting metal fitting 5
is fixed to the instrument body 1.

Although the support fitting 5 and the instrument main body 1 are made separate and integrated by fitting, it is possible to form the bottom plates 8, 8 and the end plate 7 of the support fitting 5 integrally on the instrument main body in advance. It is also possible to omit the special separate support fitting 5.

Next, the shape of the socket 2 will be explained. This corresponds to the above-mentioned support fitting 5, and is shown in FIGS. 9 to 11.
As shown in the figure, support metal fittings 5 are attached to the ends of both sides of the socket.
Attachment grooves 14, 14 which are press-fitted into the supporting parts 9, 9 are provided, and a straight step 15 is formed along the attachment grooves 14, 14 at the rear end of the socket. The distance d ₁ between the bottom surfaces of the two mounting grooves 14 , 14 is made approximately equal to the distance d ₂ between the opposing end surfaces of the respective supporting parts 9 , 9 of the support fitting 5 , and the length (socket thickness) of the mounting grooves 14 , 14 is
l ₁ is set larger than the length l ₂ of the supporting parts 9,9. Furthermore, the height h ₁ of the socket both ends below the mounting grooves 14 , 14 is the height difference h ₂ between the supporting parts 9 , 9 of the support fitting 5 and the tips of the stopper strips 10 , 10 during normal times.
It is set slightly larger.

When this socket 2 is used as a part of a single-lamp lighting fixture A, it is attached to a support fitting 5 fixed to the fixture body 1 in the following manner. First, as shown in FIG. 9, with the back side of the socket 2 facing the support metal fitting 5, using the stopper strips 10, 10 of the support metal fitting 5 as guides, slide the socket 2 between the bottom plates 8, 8, and then insert the socket 2 into the mounting groove 14. , 14 into the support parts 9, 9. This pushing is carried out until the stepped portion 15 of the socket 2 comes into contact with the straight upper end surface of the end plate 7 elastically and stops at a fixed position. Stopping strip 1 when pushing this socket
0 and 10 are deformed when the tips are pushed down by the socket 2, and when the socket 2 is pushed into the fixed position, the stopper strips 10 and 10 are removed from the socket 2 and restored by their own elasticity as shown in Fig. 11. The tip end surface lightly contacts the front surface of the socket 2, thereby preventing the socket 2 from coming off. The socket 2 is formed by fitting the mounting grooves 14, 14 and the supporting parts 9, 9, and by the step part 1.
5 and the end plate 7, they are fixed without wobbling. To remove socket 2, use stopper strip 1 from the outside.
This can be easily done by pressing 0 and 10 to slightly deform it.

In the two-lamp lighting fixture B, the following socket mounting bracket 3 is attached to the support bracket 5 in the fixture body 1.
Specific examples of this socket mounting fitting 3 are shown in FIGS. 12 to 15. Reference numeral 16 indicates a rectangular plate-shaped fitting body, 17 and 18 socket mounting portions provided on both sides of the fitting body 16, and 19, 19 a rectangular plate-shaped fitting body. Metal fitting body 1
A pair of engaging parts 20 to 23 are cut and raised ribs at the front end, both side ends, and rear end of the metal fitting main body 16, and the front end rib 20 and the both side end ribs are connected to each other. 21 and 22 are cut and raised on the back side, and the rear end rib 23 is cut and raised on the front side.

One socket mounting portion 17 is formed by a pair of L-shaped opposing cut-and-raise claw pieces 24, 24 protruding from the front surface near the rear end rib 23 on one side of the metal fitting body 16.
and a retaining tongue piece 2 formed in front of the cut and raised claw pieces 24, 24 with its tip facing the cut and raised claw pieces 24, 24.
It consists of 5 and 25. This stopper tongue piece 25,2
5 has a slight inclination angle so that the tip is slightly raised above the surface of the metal fitting body 16. The cut and raised claw pieces 24, 24 fit into the mounting grooves 14, 14 of the socket 2.
The cut-and-raise claw pieces 24,
24 from the metal fitting body 16 is set equal to the height _h1 from the bottom surface of the socket 2 to the mounting grooves 14, 14. Further, the height _h3 of the rear end rib 23 in the socket mounting portion 17 is set equal to the height of the stepped portion 15 of the socket 2. Thus, the socket 2 is installed as follows. First, the socket 2 is slid using the surface of the metal fitting body 16 as a guide, and the cut and raised claw pieces 24 are press-fitted into the mounting grooves 14 while pressing the stopper tongue pieces 25 on the bottom surface of the socket 2. Then, the socket 2 is pushed up to a fixed position where the stepped portion 15 of the socket 2 rides up and comes into contact with the rear end rib 23.
Push in and remove the stopper tongues 25, 25 from the socket 2 at this fixed position. Then, the stopper tongue pieces 25, 25
is restored by its own elasticity, and the tip surface rises to a position opposite to the front surface of the socket 2, thereby preventing the socket 2 from coming off. On the other hand, socket 2
is fixed without wobbling by the fitting of the mounting grooves 14, 14 and the cut and raised claw pieces 24, 24, and the fitting of the stepped portion 15 and the rear end rib 23. This removal of the socket 2 is easily accomplished by pressing the stopper tongues 25, 25 and slightly deforming them.

The other socket mounting portion 18 has the same structure as the socket mounting portion 17 described above, and the details thereof will be omitted.

Also, 27, 2 in the center part of the metal fitting body 16
Reference numeral 7 denotes a stop plate cut and raised on the back side at a predetermined position in front of the engaging parts 19, 19, 28 is a cord insertion hole drilled in the center of the metal fitting main body 16, and 29, 29 are two of the front end ribs 20 of the metal fitting main body 16. The notches 29 are formed at the locations, and the spacing between the notches 29 is matched to the width of the instrument body 1. Also, both end surfaces of the central front end rib 20', which has notches 29, 29 at both ends, are tapered surfaces 3.
The width d ₃ of the portion of the rib 20' connected to the metal fitting main body 16 is set equal to the opposing distance between the bottom plates 8, 8 of the support metal fitting 5. Also, the length l ₃ from the front end rib 20 to the rear end rib 23 is the length l 3 from the end plate 7 of the support fitting 5 to the tapered end surface 1 of the bottom plate 8, 8.
The length is set to be approximately equal to the lengths up to 1 and 11.

The engaging parts 19, 19 and the stop plates 27, 27 are the support parts 9, 9 of the support fitting 5 and the stop strips 10, 1.
Attach the socket fitting 3 to the support fitting 5 at the position corresponding to 0. That is, in this installation, as shown in FIG.
enters the back side of the support parts 9, 9, and the stop plates 27, 27
presses the stopper strips 10, 10, and the tapered surfaces 30, 30 at both ends of the front end rib 20 press the support metal bottom plates 8, 8.
This is done by pushing in the tapered end surfaces 11, 11 of the slider in a sliding position. When the engaging parts 19, 19 are fully fitted into the supporting parts 9, 9, the end surfaces of the stop strips 10, 10 come into contact with the front surfaces of the stop plates 27, 27, as shown in FIG. (See points P ₁ and P ₂ in FIG. 17), the proximal surfaces of the stopper strips 10, 10 abut against the back surface of the front end rib 20' (see points P ₃ and P ₄ in FIG. 17), and The edges of both ends of the rib 20' and the edges of the tapered end surfaces 11, 11 of the support metal bottom plates 8, 8 engage in a meshing state (see points _P5 and _P6 in Figure 16), and each of these points _P1 to P ₆ , the engaging portions 19, 19, and the supporting portions 9, 9 fit together, the socket mounting fitting 3 is firmly attached to the supporting fitting 5, preventing lateral wobbling, rotation, or coming off. Further, the combination of the tapered surfaces 11, 11, 30, 30 on both metal fittings 3, 5 makes the operation of pushing the socket mounting metal fitting 3 smooth. In this way, attach the socket mounting bracket 3 to the instrument body 1.
By attaching it to both ends of the lamp, a two-lamp lighting fixture B can be obtained. To remove the socket mounting bracket 3, use the stopper strips 10 and 1 of the support bracket 5 in the same way as when removing the socket.
This is easily done by transforming 0.

The packaging for such a two-lamp lighting fixture B includes a socket mounting bracket 3 with a socket 2 attached inside the fixture body 1.
This is done by storing. In fact, the dimensions of the socket 2 and socket fitting 3 are regulated to enable such packaging. Then, packaging for two lights can be done in the same way as packaging for one light, reducing waste of packaging materials.
It also facilitates packaging work.

Incidentally, the present invention is not limited to the above embodiments, and in particular, the engagement structure between the socket fitting 3 and the support fitting 5 can be modified as shown in FIGS. 18 and 19, for example. In FIG. 18, a protrusion 31 is provided on a part of the bottom plate of the support fitting 5, and a socket mounting fitting 3 is attached to the support fitting 5.
An example will be shown in which a locking hole 32 into which the protrusion 31 fits is formed, and the fitting between the two prevents the socket fitting 3 from coming off more reliably. 19th
The figure shows that the ends of the stopper strips 8, 8 of the support fitting 5 are bent upward, and the bent ends 10', 10' are inserted into elongated holes 33, which are drilled in corresponding locations of the socket mounting fitting 3.
33, the socket mounting bracket 3
An example of how to prevent this from coming off is shown below.

Furthermore, the present invention is not limited to single-light or two-light lighting fixtures, but can also be applied to multiple-light lighting such as three-light or four-light lighting by extending the length of the socket mounting bracket and increasing the socket mounting area. It can also be easily applied to equipment.

As explained above, according to the present invention, the main body of the one-light fixture can be used for two lights by simply replacing the socket mounting bracket.
It can be used in common for three lamps, etc., and therefore, by mass producing different types of fixture bodies using the same mold, it is possible to significantly reduce costs. Furthermore, a lighting fixture for multiple lights can be packaged in the same packaging as a lighting fixture for a single light, which simplifies the packaging work and saves on packaging materials, which has great practical merits.

[Brief explanation of the drawing]

1 and 2 are a front view and a side view showing an example of a one-lamp lighting fixture according to the present invention, and FIGS. 3 and 4 are a front view and a side view showing an example of a two-lamp lighting fixture according to the present invention. Figures 5 to 7 are a bottom view, a front view, a right side view, and a right side view showing specific examples of the support fittings constituting the end of the instrument body used in the present invention.
Figures 1 to 10 are partial perspective views at each stage for explaining the assembly operation sequence of the lighting fixture in Figure 1.
Figure 1 is a cross-sectional view taken along line X-X in Figure 10;
Figures 13 and 13 are a plan view and a front view showing a specific example (for two lights) of the socket mounting bracket used in the present invention, Figure 14 is an enlarged sectional view taken along the Y-Y line in Figure 12, and Figure 15 is an enlarged sectional view taken along line Y-Y in Figure 12. Figures 16 and 16 are partial perspective views at each stage to explain the assembly operation sequence of the lighting fixture in Figure 3, Figure 17 is a bottom view of the main parts in Figure 16,
FIG. 8 and FIG. 19 are partial perspective views of various modifications of the present invention before assembly. A...Lighting fixture for 1 light, B...Lighting fixture for 2 lights, 1...Device body, 2...Socket, 3...Socket mounting bracket, 4...Straight tube fluorescent lamp, 9...
...Support piece, 17, 18...Socket mounting part, 19
...Engagement piece.

Claims (1)

[Scope of utility model registration request] A pair of support pieces formed integrally on both sides of the end of the device body has a socket attachment part into which a socket for a straight tube fluorescent lamp is removably inserted and fixed, and a socket attachment part in the center part is pushed into the support pieces. A lighting fixture characterized in that a socket mounting bracket integrally formed with an engaging piece to be fitted is detachably assembled.