JPH039203Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] This invention relates to a lock structure for an elevating lighting device.

[Background technology]

The lock structure of a conventional lighting fixture will be explained based on FIG. In the figure, 40 is the ceiling;
2 is a decorative frame provided with an opening in the ceiling 40. Further, 44 is a main body of the instrument, which is suspended by a hanging rope 46 so as to be able to rise and fall freely. A lamp (not shown) is suspended from the lower surface of the fixture body 44. Instrument body 44
A locking rod 48 is protruded from the upper surface of the device, and is inserted into the guide tube 50 when the hanging rope 46 is wound up and the device body 48 is housed in the decorative frame 42. The lock rod 48 has a lock hole 52, and when the lock rod 48 is inserted into the guide tube 50, the lock member 5
4 is caught and supports the instrument body 44.

However, according to the locking structure of the lighting fixture configured in this way, the locking member 54 is connected to the locking rod 48.
Insert the device into the lock hole 52 from one side of the device body 44.
Since it is supported in a cantilevered manner, the main body 44 of the device is tilted as shown in the imaginary drawing of the same figure, and a gap is created between the flange 56 of the main body 44 and the decorative frame 42, resulting in a poor appearance.

[Purpose of invention]

The purpose of this invention is to provide a locking structure for a lighting fixture in which the lighting fixture body does not tilt when the lighting fixture body is supported by a locking member.

[Disclosure of invention]

The locking structure of the lighting fixture of this invention consists of a lighting fixture body which is suspended by a hanging rope so that it can be raised and lowered, a locking rod that is rotatable around a horizontal axis and protrudes upward from the lighting fixture body, and a side surface of this locking rod. a lock hole opened in a direction perpendicular to the horizontal axis;
A lock member is inserted into the lock hole to support the lighting fixture body.

According to the configuration of this invention, the lock rod is attached to the lighting fixture body so that it can rotate freely around a horizontal axis extending perpendicular to the opening direction of the lock hole, so that when the lock member is inserted into the lock hole, Even if the locking rod is tilted, the lighting fixture itself will remain horizontal due to its own weight, and the lighting fixture will not tilt.

Embodiment An embodiment of this invention will be explained based on FIGS. 1 to 4. As shown in FIG.
2 (see Figure 3)
a lock rod 14 that protrudes upward from the lighting fixture body 10 so as to be rotatable about a horizontal axis; and a lock hole that is opened in a side surface of the lock rod 14 in a direction perpendicular to the horizontal axis. 16, and a lock member 18 that is inserted into the lock hole 16 and supports the lighting fixture main body 10.

As shown in FIG. 4, the lighting fixture main body 10 is composed of a mounting bracket 22 fixed on a flange 20 and a lamp (not shown) suspended from the bottom surface of the flange 20 via a lighting fixture mounting plate 24. has been done. The mounting bracket 22 of the lighting fixture body 10 is provided with a rotating member 26 in which mounting pieces 28 fixed at both ends are rotatably attached to the mounting bracket 22 using mounting pins 30 (FIG. 2). The mounting pin 30 has a threaded groove only at the tip of the shaft, and a nut 31 for preventing removal is fastened thereto. The rotating member 26 is rotatably mounted around the horizontal axis X (see FIG. 2), with the axis of the mounting pin 30 being the horizontal axis X (see FIG. 2). Suspension ropes 12 that suspend the lighting fixture body 10 in a vertically movable manner are attached to the rotating member 26 in parallel in the horizontal axis X direction. Further, the lock rod 14 is provided to protrude upward from the upper surface of the rotating member 26. A locking hole 16 is provided in the side surface of the locking rod 14 and is opened in a direction perpendicular to the horizontal axis X.

Further, 32 is a guide tube into which the locking rod 14 is inserted when the lighting fixture main body 10 is lifted up by winding up the hanging rope 12. Furthermore, the locking member 18 is provided to penetrate through the guide cylinder 32, and locks the locking rod 1.
4 into the lock hole 16 and lock it into the lighting fixture body 10.
support. The lock member 18 is attached so that it can rotate upward from the horizontal position and is biased in the horizontal direction, and when the lock rod 14 enters the guide cylinder 32, the lock member 18 is rotated at the upper end of the lock rod 14. When it rotates upward and the lock hole 16 comes to the mounting position of the lock member 18, it is fitted into the lock hole 16. Further, when releasing the lock member 18, when the lock rod 14 is slightly raised, the lock member 18 is momentarily retracted by a solenoid, and while the lock member 18 is retracting, the lock rod 14 escapes from the guide tube 32.

According to the lock structure of the lighting fixture constructed in this way, when the locking member 18 is inserted into the lock hole 16 to support the lighting fixture main body 10, as shown in FIG. Even if the lighting device body 10 is tilted by the angle θ as shown in the figure, since the lighting device body 10 is rotatably attached to the lock rod 14 around the horizontal axis . Therefore, no gap is created between the flange 20 and the decorative frame 42 (see FIG. 6), and the appearance is improved.

Note that, as shown in FIG. 5, a weight 34 may be placed on the upper surface of the flange 20 in order to maintain balance around the horizontal axis Y in a direction perpendicular to the horizontal axis X. When the weight 34 is placed in this manner, the amount of unbalance caused by the chain, cord, etc. that hangs the lamp can be canceled out, and the lock rod 14 can be accurately inserted into the guide tube 32.

[Effect of idea]

According to the locking structure of the lighting fixture of this invention, the locking rod extends in a direction perpendicular to the opening direction of the locking hole and is attached to the lighting fixture body so as to be freely rotatable around a horizontal axis, so that the locking rod can be attached to the locking hole. Even if the locking rod is tilted when the member is inserted, the lighting fixture body will remain horizontal due to its own weight, and the lighting fixture body will not tilt.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of an embodiment of this invention, Fig. 2 is a plan view thereof, Fig. 3 is a partial side view thereof, Fig. 4 is a partially exploded perspective view thereof, and Fig. 5 is a perspective view of a modified example. , FIG. 6 is a sectional view of a conventional example. 10...Lighting equipment body, 12...Hanging rope, 14...
...Lock rod, 16...Lock hole, 18...Lock member.

Claims (1)

[Scope of utility model registration request] A lighting fixture body suspended by a hanging rope so as to be able to rise and fall freely; a locking rod rotatable around a horizontal axis and protruding upward from the lighting fixture body; A lock structure for a lighting fixture, comprising a lock hole opened in the direction and a lock member inserted into the lock hole to support the lighting fixture body.