JPH0455370Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a sliding type lighting fixture in which a fluorescent lamp can be slid to an optimal position for illumination.

[Conventional technology]

Some study desks have lighting fixtures installed on shelves or the like to illuminate the desk top from above.

However, if a simple fixed lighting fixture is used on such a study desk, the lighting position will be determined. Therefore, in order to adjust the lighting position, a sliding type lighting fixture as shown in FIGS. 6 and 7 has been developed.

This is located in a flat slide box b (corresponding to the arm storage chamber) with an entrance a that opens on the side.
An arm body d having a required length and formed into a U-shaped cross section is provided so that the arm body d can be freely drawn out, with the opening c facing the lower surface side. Specifically, elongated holes f extending in the front-rear direction are provided on both widthwise sides of the bottom plate e of the slide box b, and boss portions g, which pass through these elongated holes f, are inserted into the upper wall of the slide box b. It has a structure that protrudes from the bottom surface of the. However, h and h are pieces provided at the tip of the boss g to prevent rattling. A straight tube-shaped fluorescent lamp (not shown) is provided at the tip of the arm body c together with a shade i (which constitutes a lamp body together with the fluorescent lamp). Furthermore, a cord j, whose one end is connected to a fluorescent lamp and the other end is connected to a ballast (not shown), is loosely wired in the cord insertion passage k formed by the space of the arm body d. It has a unique structure. In other words, if you pull the shade i toward you, the arm body d stored in the slide box b
As the lamp is pulled out, the cord j extends following the movement, allowing the position of the fluorescent lamp to be adjusted. Of course, when pushed back, the arm main body d is housed in the slide box b, and the fluorescent lamp returns to its original position.

[Problem that the invention attempts to solve]

However, such a slidable lighting fixture has a drawback in that when the arm body d is pulled out, the cord j wired from the bottom side is exposed. Moreover, since the cord j is slackened so that it can be freely bent within the arm body d, there is a risk that the cord j may fall off from the arm body d, making it impossible to store the arm body d. It has

Furthermore, in addition to this, the structure in which the center of the fluorescent lamp is supported by the arm body d having an open cross section makes it easy for the fluorescent lamp to sway (twist) to the left or right even when a small external force is applied.

This idea was made with attention to these circumstances, and its purpose is to create a slide that can eliminate cord exposure and poor storage due to cords, and at the same time suppress the shaking of the lamp body. Our goal is to provide type lighting equipment.

[Means and actions for solving problems]

Therefore, in order to solve the above-mentioned problems, this invention provides a bottom plate 10b on the lower surface of the arm body 10a to close the lower surface opening, and the cord insertion passage 1
The cord 22 inserted through the cord 0d is made invisible from the outside and at the same time is prevented from falling off, and furthermore, the rigidity of the arm body 10a is significantly increased from the closed cross-section structure to suppress the left and right swing (twist) of the lamp body 17. .

〔Example〕

This invention will be explained below based on an embodiment shown in FIGS. 1 to 5. In FIG. 5, 1 is a small shelf of a study desk, for example, and a sliding type lighting fixture 2 (hereinafter simply referred to as lighting fixture 2) is installed on this small shelf 1.

To explain the lighting fixture 2, numeral 3 is a vertical support made of, for example, two rectangular pipes (made of steel) arranged side by side, and 4 is a lighting unit installed at the lower end of the support 3. The lighting unit 4 includes devices (not shown) necessary for lighting, such as a ballast and a heat sink, in a control case 5 made of, for example, a flat resin (for example, ABS), and also has a push button switch 5a for lighting on the front of the case. , fuse holder 6,
It has a structure in which outlets 7, 7 are installed.
Note that a power cord (not shown) having a plug at the tip is connected to the rear of the control case 5.

Further, a lamp system 8 is provided at the upper ends of the pillars 3, 3 so as to be slidable in the horizontal direction. Regarding the lamp system 8, reference numeral 9 denotes an arm storage section (corresponding to an arm storage chamber) provided at the upper end of the pillars 3, 3. As shown in FIGS. 1 and 4 on an enlarged scale, the arm storage section 9 is provided with a steel plate on the bottom surface of a slide box 9a made of resin and having an approximately box shape with openings on the front side and the bottom side. The lower opening of the slide box 9a is closed by attaching a flat bottom plate 9b with screws or the like to form a flat storage space with a required depth inside. Of course, the opening of the storage space becomes the entrance/exit 9c. The bottom plate 9b is attached to the upper end of the support column 3, and the arm storage section 9 is set in a horizontal state with the entrance 9c facing the front.

Further, 10 is a slide arm. As shown in FIGS. 1 to 4, the slide arm 10 includes an arm body 10a made of, for example, resin (for example, ABS) and having a flat box shape (U-shaped cross section) with an open bottom, and an arm body 10a that is made of resin (for example, ABS) and has an open bottom. It has a structure in which it is combined with a bottom plate 10b also made of resin. In other words, the arm body 1 is fixed with the front and rear parts fixed respectively.
0a and the bottom plate 10b are connected. Specifically, the rear side is fixed by providing an engaging pawl 11 with a bevelled tip on the lower surface of the arm body 10a and protruding along the width direction, and by using a base plate 10b that corresponds to the engaging pawl 11. An engagement hole 1 that can be engaged and detached with an engagement claw 11 is provided in the part.
2 is provided, and the arm main body 10a and the bottom plate 1 are connected from engagement.
0b is connected. Further, the front side is fixed by providing a boss 13 protruding from the lower surface of the arm body 10a, and connecting the boss 13 by inserting a screw 14 from the bottom plate 10b. Thus, the arm main body 10a and the bottom plate 10b are firmly fixed. In addition, this arm body 10
Inside a is a cord insertion path 10d.

The lamp body 17 is attached to the handle portion 1 on the support portion 10c extending from the tip of the slide arm 10.
It is pivotally connected via a hinge portion 16 having a number 5 so as to be rotatable in the vertical direction. That is, the lamp body 1
7 is constructed by disposing a fluorescent lamp 18a, a reflector, a lamp socket, and a glow lamp (all not shown) in a shade 18, and the longitudinal center of the shade 18 is attached to the lower surface side of the hinge part 16. It is worn.

As shown in FIGS. 1 and 2, the rear end side of the slide arm 10 is stored in the storage space of the arm storage section 9 so as to be freely drawn out. That is, in the drawer structure, for example, in addition to providing box-shaped stepped portions 19 on both sides of the rear end of the bottom plate 10b that protrude downward, there is also a box-shaped step portion 19 that engages with the previous stepped portion 19 on the upper surface portion of the bottom plate 9b on the entrance/exit 9c side. A structure in which a possible step 20 is provided protruding across the width direction is used, so that it can be pulled out (approximately 70 degrees) until the step 19 comes into contact with the step 20. Note that for regulating the return side, a structure is used in which a stepped portion 21a is formed on the upper wall of the arm main body 10a and brought into contact with the open end of the entrance/exit port 9c.

A conductive cord 2 is inserted into a flat and expandable space 21 formed between the bottom plate 9b of the arm storage portion 9 and the bottom plate 10b of the slide arm 10, which are formed by the step portion 19 and the step portion 20.
2 is stored.

That is, speaking of the wiring structure of the cord 22, the cord 22 is disposed in the space 21 by a length corresponding to the amount of slide on the slide arm 10. As shown in FIGS. 2 and 3, one end of the cord 22 passes through the support 3 and is connected to the electrical equipment in the control case 5. The other end of the cord 22 is connected to a cord regulating slit 23 formed at the widthwise center of the rear end of the bottom plate 10b and a cord insertion passage 10d of the arm body 10 (arm body 10a and bottom plate 10).
It is removably connected to the cord 25a on the lamp body 25 side via a connector 26 through the space surrounded by b). Further, the slackened cord portion in the space 21 further ahead is wrapped in a large circular arc shape in advance, and the circular arc portion 22a is reduced in accordance with the amount that the slide arm 10 is pulled out. The length of the cord can be adjusted. Of course, the gap in the space 21 is determined to allow the cord 22 to move smoothly, and when the slide arm 10 is pulled out and returned to its original storage state, it becomes a large arc again (repeatability).

The lighting fixture 2 configured in this way is
The control case 5 is fixedly installed on the lower surface of the small shelf 1, and although the entire lighting fixture is not shown, it is compactly stored between the large shelf provided on the upper level of the small shelf 1.

In addition, 27 is a pillar decoration incorporated in the small shelf part and provided on the pillar part.

However, the lighting equipment configured in this way is
If you use the handle part 15 to pull out the lamp body 17,
As shown in FIGS. 3 and 4, the slide arm 10 stored in the arm storage portion 9 is being pulled out. Then, following the slide, the arcuate portion 22a of the cord 22 causes a contraction displacement, and the illumination area in the front and back direction of the desk top surface of the study desk is adjusted. Of course, the adjustment range can be further expanded by rotating the lamp body 17 in the vertical direction using the hinge portion 16 as a fulcrum.

Here, in such a drawer operation, the cord 22 inserted into the arm body 10a is shielded by the bottom plate 10b provided on the lower surface of the arm body 10a, so that the cord 22 as described in the "Prior Art" section is is not visible from below. Moreover, since the bottom plate 10b prevents the cord 22 from falling off, there is no possibility that the arm body 10a cannot be stored in the arm storage portion 9 due to the cord 22 falling off. In particular, an independent space 21 is formed between the bottom plate 9b of the arm storage part 9 and the bottom plate 10b of the slide arm 10 for storing the flexible cord 22, and the cord part is provided with a winding habit.
The cord 22 inserted through the arm body 10a does not need any slack, and the cord 22 is inserted into the arm body 10a.
It is possible to almost completely prevent troubles caused by slack in the inside of a.

In this way, the appearance is improved and the code 22
It is possible to eliminate storage defects. Moreover, in addition to these effects, the bottom plate 10b also has the arm body 10a.
Since the opening side of the arm is closed to create a closed cross-sectional structure, the rigidity of the arm itself is significantly increased, which reduces the left and right vibrations of the lamp body 17 (due to central support), which is prone to vibration. twist)
can be suppressed.

[Effect of idea]

According to this invention, the gist of which is the configuration described in the above-mentioned utility model claims, it is possible to make the cord inserted into the arm body invisible from the outside and at the same time prevent it from falling off.

Therefore, exposure of the cord and poor storage due to the cord can be avoided. Furthermore, since the arm body has a closed cross-sectional structure due to the bottom plate provided in the opening, the rigidity and strength of the arm body can be significantly increased, and horizontal swing of the lamp body can be sufficiently suppressed.

[Brief explanation of drawings]

Figures 1 to 5 show an embodiment of this invention. Figure 1 is a side sectional view taken along the line A-A in Figure 2, which shows the structure around the arm body, which is the main part. 3 is a partially cutaway bottom view showing the slide body in a pulled out state; FIG. 4 is a side sectional view taken along line B-B in FIG. 3;
The figure is a perspective view showing the entire sliding type lighting device, FIG. 6 is a side sectional view showing the developed sliding type lighting device, and FIG. 7 is a partially cutaway bottom view thereof. 9...Arm storage section (arm storage room), 9c...
...Entrance/exit, 10a...Arm body, 10b...Bottom plate of arm body, 10d...Cord insertion passage, 17
...Light body, 22...Code.

Claims (1)

[Scope of utility model registration request] It consists of an arm storage chamber configured in a box shape with an entrance opening to the side, and a space inside the arm storage chamber that can be freely drawn out along the horizontal direction through the entrance and has an opening on the lower surface side. an arm body having a cord insertion passage; a bottom plate attached to the lower surface of the arm body and closing the lower opening;
A lamp body comprising a fluorescent lamp whose central part is attached to the tip of the arm body; one end side connected to the lamp body and the other end side inserted through the cord insertion path for wiring. A sliding lighting fixture characterized by comprising a cord and a cord.