JP4416681B2 - lighting equipment - Google Patents

Description

  The present invention provides a balloon having translucency that can be inflated and contracted on the upper side of the support part, and a light source bulb housed inside the balloon so as to be fixed to the upper part of the support part. The present invention relates to a lighting fixture provided with an air supply device capable of supplying expansion air.

  Since the light from the light bulb is irradiated through an inflated balloon, the above-mentioned lighting fixture can relieve the glare felt by the driver of a passing vehicle even when used in road construction at night, etc. There is an advantage that it can be stored and transported by contracting, but conventionally, a protective frame surrounding the bulb around the inside of the balloon can be fixed to the upper end side of the support part such as a support column, etc. In order to regulate the posture change with respect to the support portion, the protective frame is used to fix the portions corresponding to the upper surface portion and the lower surface portion to the upper and lower ends of the protective frame in the inflated state of the balloon (for example, Patent Document 1).

JP 2003-36709 A

For this reason, when the balloon is deflated when not in use, the outer diameter along the horizontal direction of the balloon can be reduced, but in the inflated state of the balloon, the portions corresponding to the upper surface portion and the lower surface portion are located at the upper and lower ends of the protective frame. The height of the balloon cannot be changed because it is fixed to the part, and the more the balloon that is inflated, the more difficult it is to make the entire lighting fixture compact even when the balloon is deflated when it is not in use. There is.
The present invention has been made in view of the above circumstances, and when the balloon is deflated when not in use, the overall lighting apparatus can be made compact while allowing the posture change with respect to the support portion of the inflated balloon to be regulated. It aims at making it easy to plan.

  The first feature of the present invention is that a balloon having translucency that can be expanded and contracted on the upper side of the support part and a light source bulb accommodated inside the balloon can be fixed to the upper part of the support part. A lighting device provided with an air supply device capable of supplying inflation air to the balloon, wherein a regulation frame capable of regulating a change in posture of the balloon in an inflated state with respect to the support portion from an outer surface side thereof, Around the light source bulb, it is provided so as to be substantially along the downward outer surface side of the inflated balloon.

[Action and effect]
Since the posture change with respect to the support portion of the inflated balloon can be regulated from the outer surface side by the regulation frame, when the balloon is deflated when not in use, the regulation frame is less likely to interfere with the deflation of the balloon. In addition to being small and easy to contract, the restriction frame is provided so as to be substantially along the downward outer surface side of the inflated balloon around the light source bulb, so that the vertical dimension of the restriction frame is also difficult to be bulky.
Therefore, it is easy to make the entire lighting fixture compact when the balloon is deflated when not in use, while the posture change with respect to the support portion of the inflated balloon can be regulated.

  According to a second characteristic configuration of the present invention, when the restriction frame is configured, the plurality of restriction arms are stored so that the deployment posture in which the plurality of restriction arms are expanded substantially along the downward outer surface side of the inflated balloon and the distal end side are close to each other. It is in the point that it is provided so that the posture can be freely switched to the retracted posture.

[Action and effect]
A deployment frame in which a posture of the inflated balloon with respect to the support portion can be regulated from the outer surface side, a plurality of regulating arms are deployed so as to be substantially along the downward outer surface side of the inflated balloon, and the distal end side is mutually Since the posture is freely switchable to the retracted posture for storing in a close proximity, when the balloon is inflated, a plurality of restricting arms are deployed so as to extend substantially along the downward outer surface side of the inflated balloon. Switch to a retracted posture in which a plurality of restricting arms are retracted so that the distal end sides are close to each other when not in use when the balloon is deflated while switching the posture from the outer surface side while regulating the posture change with respect to the support portion of the inflated balloon. Thus, it is easy to further reduce the overall size of the lighting fixture.

  A third characteristic configuration of the present invention is that the plurality of restriction arms are supported so as to be swingable up and down, and the posture can be switched between the restriction posture and the retracted posture.

[Action and effect]
Since the plurality of restriction arms constituting the restriction frame are supported so as to be swingable up and down, and the posture can be switched between the restriction posture and the retracted posture, the posture switching operation can be simplified.

  A fourth characteristic configuration of the present invention is that the light source bulb is configured by a xenon short arc lamp.

[Action and effect]
Since the light source bulb is composed of a xenon short arc lamp that is easier to relight instantly than a mercury lamp or the like, it is easy to relight at a desired timing.

Embodiments of the present invention will be described below with reference to the drawings.
1 and 2 show a lighting apparatus provided with a lighting fixture 1 according to the present invention, and a generator unit 2 capable of supplying lighting power to the lighting fixture 1 and the lighting fixture 1 higher than the generator unit 2. The support unit 3 that can be supported at a position is provided on the carriage 4, the support unit 3 is provided so as to be bent in the vertical direction, and the lighting fixture 1 is lowered together with a part of the support unit 3 toward the upper side of the generator unit 2 Support is possible.

  The carriage 4 is provided so that it can be pushed and pulled while being steered by a handle 5, and a pipe protective frame 7 surrounding the generator unit 2 is fixed to a cargo bed 6 on which the generator unit 2 is placed. The support portion 3 is fixed to the protective frame 7.

  The luminaire 1 includes a sheet-made balloon 8 that is substantially inflatable and deflateable on the upper side of the support 3, and a xenon short as a light source bulb 9 housed inside the balloon 8. An arc lamp and a cylindrical base portion 10 holding a socket for the light source bulb 9 are provided, and can be fixed to the upper portion of the support portion 3 by a fixing shaft member 36 provided on the cylindrical base portion 10, and an electric fan A balloon inflation air supply device 33 such as the above is provided inside the cylindrical base 10.

  As shown in FIG. 3, the cylindrical base portion 10 includes a bowl-shaped guard 34 that surrounds the light source bulb 9 so that the light bulb 9 does not touch the balloon 8 or break due to collision with other objects. While being supported, the inflation air can be supplied to the balloon 8 through the through-hole 35 formed in the cylindrical base 10.

  In use (illumination) shown in FIG. 1, the balloon 8 is inflated into a substantially spherical shape by driving the air supply device, and when not shown in FIG. It is configured so that it can be contracted.

  In addition, in a state where the restriction frame 12 that can regulate the change in the posture of the balloon 8 in the inflated state with respect to the support portion 3 from the outer surface side thereof is substantially along only the downward outer surface side of the inflated balloon 8 around the light bulb 9 for the light source. It is provided.

  The restricting frame 12 has a plurality of restricting arms formed in an arc shape inserted through a swing range restricting long hole 37 provided on the cylindrical base 10 side, and is movable up and down to the fixing shaft member 36. The tip end side of each regulating arm 12 is inserted into the inner side of a band plate 13 attached to the outer surface side of the balloon 8 in a ring shape. The balloon 8 is fixed to the outer surface side.

  Then, as shown in FIG. 1, the annular slide member 11 is moved upward, and the deployed posture is developed so as to extend substantially along the downward outer surface side of the inflated balloon 8, and as shown in FIG. 2, the annular slide member 11 is moved downward and is configured to be freely switchable to a retracted position in which the balloon 8 is retracted so that the distal end sides are close to each other.

  The support portion 3 is connected to a support column 14 erected on the carriage 4 via a protective frame 7 so that a support body 15 that supports the lighting apparatus 1 is swingable upward of the generator unit 2. Thus, it can be bent in the vertical direction.

  The upper and lower two swing link members 17a and 17b are supported on the bracket 16 fixed to the upper portion of the support column 14 as the support 15 for supporting the lighting fixture 1, and the swing link members are supported. 17a and 17b are connected by a connecting link member 18, and a parallel four-link mechanism is provided with the bracket 14 side, that is, the bracket 16 as a fixed link. The connecting link member 18 is provided with a shaft member 36 for fixing the luminaire 1. The gas damper 19 is detachably fixed, and a telescopic gas damper 19 is connected to the bracket 16 over the upper end of the lower swing link member 17b and the bracket 16.

  As shown in FIG. 4, the gas damper 19 is provided with a valve (not shown) capable of switching the space in the cylinder case 20 before and after the piston (not shown) between a communication state and a shut-off state. The valve operating mechanism 21 for opening and closing the door is configured to be switchable between a stretchable state and a non-stretchable locked state.

  In the valve operating mechanism 21, a swing arm 23 and an arc-shaped valve operation handle 24 are integrated with a shaft member 22 that is rotatably supported by a rectangular tubular lower swing link member 17b around a horizontal axis. The operating rod 25 that can open and close the valve is connected to the swing arm 23 so as to be swingable relative to the swing arm 23, and the valve is opened and closed by pushing and pulling the operation rod 25 by the swinging operation of the valve operating handle 24. It is provided so that it can be operated.

  Further, the pulling coil spring 26 is connected across the swing arm 23 and the lower swing link member 17b so that the valve operation handle 24 returns and swings to the lock position where the gas damper 19 is switched to the locked state. The lifting operation handle 27 for raising and lowering the luminaire 1 is fixed to the lower swing link member 17b so as to be along the outer periphery of the bulb operation handle 24.

  When the valve operation handle 24 in the locked position indicated by the solid line in FIG. 4B is swung to the expansion / contraction position indicated by the phantom line on the lifting operation handle 27 side against the urging force, the gas damper 19 expands and contracts. As shown in FIG. 1, the lighting apparatus 1 can be moved up and down while the gas damper 19 is extended and contracted while the valve operation handle 24 and the lifting operation handle 27 are simultaneously grasped with one hand. Furthermore, the support part 3 can be bent freely in a use state in which the lighting fixture 1 is held at a high position and in a storage state in which the lighting fixture 1 is stored in a low position above the generator unit 2 as shown in FIG. It is provided.

  Further, a U-shaped locking member 29 in a side view capable of locking a hook 28 such as a crane for lifting an illuminating device is attached to the bracket 16 fixed to the upper portion of the column 14 on the upper side of the generator unit 2. As shown in FIG. 2 (b), when the lighting fixture 1 is lifted and moved by a crane or the like in the retracted state in which the lighting fixture 1 is lowered and stored near the top of the generator unit 2, it is locked. The member 29 is swung upward so that the hook 28 can be locked at a high position.

[Other Embodiments]
1. In the luminaire according to the present invention, the restriction frame may be integrally fixed to the support portion, the fixing member to the support portion, or the like by welding.
2. In the lighting apparatus according to the present invention, the restriction frame may be detachably fixed to the support portion, a fixing member to the support portion, or the like.
3. The luminaire according to the present invention may be provided with a net-like or plate-like restriction frame.

(B) Front view of lighting device (b) Side view of lighting device (B) Front view of lighting device (b) Side view of lighting device Perspective view of main parts (B) Front view of relevant parts (b) Side view of relevant parts

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Support part 8 Balloon 9 Light source bulb 12 Control frame 33 Air supply device

Claims (4)

A balloon having translucency that can be inflated and contracted on the upper side of the support part, and a light source bulb housed inside the balloon so as to be fixed to the upper part of the support part,
A lighting device provided with an air supply device capable of supplying inflation air to the balloon,
A luminaire provided with a restriction frame capable of regulating a change in posture of the inflated balloon with respect to the support portion from the outer surface side thereof so as to be substantially only along the downward outer surface side of the inflated balloon around the light source bulb. . In configuring the restriction frame,
A plurality of regulating arms are provided so as to be freely switchable between an unfolding posture of deploying so as to substantially follow the downward outer surface side of the inflated balloon and a retracting posture of storing the tip end sides close to each other. The lighting fixture according to 1.   The lighting fixture according to claim 2, wherein the plurality of restriction arms are supported so as to be swingable up and down, and the posture can be switched between the restriction posture and the retracted posture. The lighting fixture according to any one of claims 1 to 3, wherein the light source bulb is configured by a xenon short arc lamp.

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