JPS6231924Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a spotlight equipped with a focus adjustment mechanism that can be easily converted into a manual operation type and a pole operation type.

The focus of a spot light is generally adjusted by sliding the support member of the light source or reflector by rotating a screw rod installed in the direction of the optical axis of the lamp. A turning knob connected to a screw rod is protruding from the top. However, the focus of a spotlight suspended at a high place is controlled electrically or remotely from the floor using a pole operation type control rod with a hook-shaped hook at the tip. ing. When adjusting with an operating rod, it is difficult to operate the adjustment knob equipped with a metal fitting for engaging with a hook metal fitting unless the engaging metal fitting is facing the floor. A focus adjustment mechanism for the mold is required. Therefore, there is a problem in that the user must select one of the above types of spotlights depending on the installation location.

The object of the present invention is to provide a spotlight equipped with a focus adjustment mechanism that can be converted between a pole-operated type and a manual-operated type with simple work in advance.

The present invention will be explained in detail below with reference to illustrated embodiments.

In the figure, 1 is the back plate of the lamp body, 2 is the side plate, 3
is a screw rod for focus adjustment arranged in the optical axis direction of the lamp body, and the end of the screw rod 3 protruding from the back plate 1 has a fitting groove 6 so that a manual knob 4 can be connected with a bolt 5. and a screw hole 7 are provided.
Furthermore, a bevel gear 8 is provided on the screw rod 3 within the lamp body. A through hole 9 and a screw hole 10 are formed in the side plate 2, so that a light shielding cover 11 can be screwed thereto. 12 is a case in which pivots 13 and 15 are supported perpendicularly to their axes by meshing bevel gears 14 and 16, and a hook-shaped hook for a pole operation type operating rod is attached to the end of the pivot 13 (the left end in the figure). Engagement fitting 18 to be engaged with the fitting
An adjustment knob 17 having a substantially truncated conical shape and having a hollow interior that can be gripped and operated is attached. The end of the pivot 15 is loosely inserted into the through hole 9 so that its axis is perpendicular to the axis of the screw rod 3, and a bevel gear 19 that meshes with the bevel gear 8 is removably attached to the adjustment knob 17. The rotation of is caused by bevel gears 14, 16,
It can be transmitted to the screw rod 3 via 19 and 8. The case 12 can be screwed through the screw hole 10 at a position where the pivot 13 takes the same optical axis direction as the screw rod 3. Furthermore, the adjustment knob 17 can be screwed through the screw hole 10 even in a position where it is rotated about the pivot shaft 15 and moved 135 degrees diagonally downward on the front side of the lamp body. In addition, 2
0 is a light shielding screw.

As shown in FIGS. 1 and 2, the spot light with the above configuration is assembled by fitting the manual knob 4 into the fitting groove 6, attaching it to the screw rod 3 through the screw hole 7 with the bolt 5, and then tightening the screw. By screwing the light shielding cover 11 through the hole 10, the focus can be adjusted in exactly the same way as a conventional manual operation type spotlight (manual operation type). Further, as shown in FIGS. 3 to 5, the manual knob 4 and the light shielding cover 11 are removed, the pivot shaft 15 is loosely inserted into the through hole 9, and the bevel gear 19 is attached, so that the pivot shaft 13 is in the optical axis direction. If the case 12 is screwed to the side plate 2 through the screw hole 10 and the light-shielding screw 20 is attached to the exposed screw hole, the adjustment knob 17 will face toward the back of the lamp, and the above-mentioned manual It can be operated in the same manner as the operating type, and the focus can also be adjusted from the back side of the lamp body using a pole operation type operating rod via the engagement fitting 18. Then, as shown in FIG. 6, the case 12 is screwed to the side plate 2 through the screw hole 10 at a position rotated 135 degrees counterclockwise around the pivot 15, and a light shielding screw 20 is inserted into the exposed screw hole. If the adjustment knob 17 is attached, the adjustment knob 17 will face diagonally downward on the front side of the lamp body. At this angle, the direct adjustment knob 1
Although it is difficult to adjust the focus by holding the lens 7, remote control using a pole operation type control stick becomes extremely easy. In other words, a spotlight suspended at a high place has an angle of depression of approximately 30
Because it is located downward at ~60 degrees,
The adjustment knob 17 faces substantially toward the floor, allowing the operator to operate the pole from substantially directly below the spotlight.

In addition, in the above embodiment, a configuration was described in which the manual knob 4 is detachably attached to the screw rod 3.
Since the adjustment knob 17 allows direct grip operation from the back of the lamp body, it is not necessary to provide the manual knob 4. Further, when attaching the case 12, it is not necessary to remove the manual knob 4. Furthermore, the rotation angle of the case 12 is not limited to 135 degrees, and the screw hole 10 is not just a screw hole, but an arc-shaped elongated hole centered on the through hole 9, so that the rotation position of the case 12 can be adjusted arbitrarily. It may be configured so that it can be selected.

As explained above, the spotlight of the present invention has great practical value because it can be converted to manual or pole-operated focus adjustment with simple work without major modification.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention.
The figure is a partial cross-sectional view of the manually operated type.
Figure 2 is a side view of the same, Figure 3 is a partial sectional view of the pole-operated and manually operated type, Figure 4 is a side view of the same, Figure 5 is a rear view of the same, and Figure 6 is the support. It is a partial side view in a state in which the member is rotated and made into a pole operation type. 1... Back plate of the light body, 2... Side plate of the light body, 3...
...Screw rod, 4...Manual knob, 5...Bolt, 6...
Fitting groove, 7...screw hole, 8...bevel gear, 9...through hole, 10...screw hole, 11...shading cover,
12... Case, 13... Pivot, 14... Bevel gear, 15... Pivot, 16... Bevel gear, 17... Adjustment knob, 18... Engagement fitting, 19... Bevel gear, 20... Shading screw.

Claims (1)

[Scope of utility model registration request] A rear end portion having a manual knob mounting member is provided on the back of the lamp body, a bevel gear is provided on a focus adjustment screw arranged in the optical axis direction of the lamp body, and a side surface of the lamp body near the bevel gear is provided. At the same time, two pivots are arranged in the support member through a pair of bevel gears so that their axes are perpendicular to each other, and a pole operation type operating rod is attached to one of the pivots. A grippable adjustment knob equipped with a hook-shaped hook engaging member is provided, and the other pivot is loosely inserted into the through hole of the lamp body so that the axis is orthogonal to the screw rod, and the bevel gear of the screw rod is provided. A bevel gear that meshes with the lamp is removably attached, and the supporting member is detachably attached so that the mounting position can be moved relative to the lamp around a pivot that is loosely inserted into the through hole of the lamp. Features a spotlight.