JP2003036709A - Floodlight - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a new balloon type floodlight improved in its usability and commercial value by overcoming the problem wherein the light of conventional one disturbs drivers to pass by a construction site of a road. SOLUTION: The balloon type floodlight attracts drivers' attention by indicating printed letters like 'Under construction' or 'caution' on the outer surface of the body 5a of the balloon 5 because the balloon 5 can be inflated without wrinkle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floodlight used as night lighting for road construction, sports facilities, etc.
More specifically, the present invention relates to a floodlight equipped with a balloon-type lighting fixture in which a light bulb is built in a balloon inflated by an air supply means.

[0002]

2. Description of the Related Art Conventionally, as a floodlight that has been used as nighttime lighting for road construction and sports facilities, a trolley carrying a generator is provided with an extensible support column, and the light from a light bulb is placed at the upper end of the extensible support column. It is known to equip a lighting device that projects light forward with a reflector. By the way, it goes without saying that it is preferable that the light emitted from this type of light projector is bright, but in road construction, etc., the light emission may interfere with the driver of a passing vehicle, especially on highways. There is a demand for improvement when using.

In order to solve such a problem, the applicant of the present application has installed a telescopic support column on a trolley carrying a generator.
We proposed a new floodlight in which a balloon-type lighting device having a bulb built in a balloon inflated by an air supply means is provided on the upper end of the telescopic support, and filed previously (Japanese Patent Application No. 2001).
-150911). The balloon-type floodlight of the prior application softens the glare by indirectly irradiating the light of a light bulb in the balloon to the outside through the balloon, and the floodlight is emitted to a driver of a passing vehicle in road construction or the like. It has an advantage that it does not become an obstacle.

[0004]

When the technical contents of the above-mentioned balloon type floodlight of the prior application are examined in more detail, there is room for improvement in the following points. In other words, this kind of balloon type floodlight is "under construction" on the peripheral surface of the balloon.
It may be possible to display the letters such as “Caution” by printing etc. to call attention to the driver of a passing vehicle.However, in the conventional balloon-type floodlight, the upper circular sheet material forming the upper half of the balloon is used. , The lower circular sheet material forming the lower half of the balloon is sewn together to form the balloon, so when the balloon is inflated, some wrinkles occur on the balloon peripheral surface, and the balloon peripheral surface is displayed. There is a risk that the characters will not be readable. In order to eliminate this, it may be possible to form a substantially globe-like shape composed of a plurality of divided sheet materials obtained by dividing the balloon peripheral surface in the meridian direction so that wrinkles do not occur. Since the sheet materials have to be sewn to each other, there is a problem that it takes time and cost to manufacture the balloon.

Further, the balloon is usually formed of a synthetic resin sheet having a light projecting property, but it needs to be replaced every predetermined period due to deterioration due to outdoor use, deterioration due to heat generation from a light bulb, and the like. However, in the balloon type floodlight of the prior application, the upper and lower end portions of the frame body that surrounds the bulb and prevents contact between the balloon and the bulb, are formed by the upper and lower circular plates, respectively, to define the center portion of the upper surface and the center portion of the lower surface of the balloon. The sandwiched upper and lower circular plates are fixed to each other with bolts and nuts.
There was a problem that it took time to replace the balloon.

Further, in the balloon type floodlight of the prior application, the frame body is composed of a wire mesh frame body, and there is a problem in strength for long-term use and use under strong wind conditions. Furthermore, the balloon type floodlight of the prior application is configured as a dedicated device for a balloon type lighting fixture, in which a telescopic column is erected on a trolley carrying a generator, and the light from a light bulb is reflected on the upper end of the telescopic column. Owners of conventional floodlights equipped with a luminaire that projects light forward with a board must purchase a balloon-type floodlight separately, including a generator, a trolley, and two sets of telescopic columns. You will own it.

In view of such circumstances, the present invention solves the above-mentioned conventional problems in the balloon type floodlight in which the floodlight may not hinder the driver of a passing vehicle in road construction or the like. However, it is an object of the present invention to provide a new balloon type floodlight which is easy to use and has high commercial value.

[0008]

In order to achieve the above object, a floodlight according to the present invention comprises a trolley on which a generator is mounted, and an extensible strut installed upright on the trolley. The lighting device comprises a balloon, an air supply means for sending air into the balloon to inflate the balloon, and a light bulb built in the balloon, wherein the balloon has a tubular body portion. It is characterized in that it is formed into a shape having, for example, a substantially drum shape, a substantially frustoconical shape, an inverted frustoconical shape, or the like, so that when the balloon is inflated, wrinkles do not occur in the body portion. With such a configuration, wrinkles do not occur on the body when the balloon is inflated. Therefore, by displaying characters such as “under construction” and “caution” on the outer peripheral surface of the balloon body by printing etc. The driver can be alerted.

Characters, figures, etc. can be displayed on the body of the balloon, and the display method is printing,
Various means such as sticking and coloring can be considered.

The balloon has a cylindrical body portion forming sheet material having upper and lower openings, and an upper surface side sewn to the body portion forming sheet material so as to close the upper and lower openings of the body portion forming sheet material. With the configuration including the circular sheet material on the lower surface side, it is possible to reduce the time and cost for manufacturing the balloon.

Further, in the floodlight according to the present invention, an extendable column is installed upright on a trolley carrying a generator, and a lighting fixture is mounted on an upper end of the extendable column, and the illumination fixture is a balloon and the balloon. It is formed by an air supply means for sending air into the balloon to inflate the balloon, a light bulb built in the balloon, and a frame body surrounding the light bulb. The frame body has an upper end portion at the center of the upper surface of the balloon. , The lower end portion is detachably fixed to the central portion of the lower surface of the balloon so as to stand at the inner central position of the balloon, and the fixing means of the central portion of the upper surface of the balloon to the upper end portion of the frame is operated from the outside of the balloon. Is formed by engaging means that engages with the upper end of the frame in a detachable manner, and the fixing means of the central part of the lower surface of the balloon to the lower end of the frame is formed by a fastener type connecting means that is opened and closed by an operation from the outside of the balloon. And characterized in that it is mounted freely exchange balloon to the frame.

According to this structure, the engagement means can be engaged and disengaged on the upper surface of the balloon, and the fastener can be opened and closed on the lower surface of the balloon, so that the balloon can be easily attached to and detached from the frame. .

An upper end plate detachably fixed to the center of the upper surface of the balloon, a lower end plate detachably fixed to the center of the lower surface of the balloon, and a plurality of the frames which stand up between the upper and lower plates. When it is configured with the pipe-shaped support column and the wire mesh-shaped protective frame that is detachably mounted between the adjacent pipe-shaped support columns, the strength is significantly improved compared to the wire mesh-shaped frame body, and The structure can withstand long-term use.

Also, a balloon type lighting device having a light bulb built in a balloon inflated by an air supply means and a lighting device for projecting the light of the light bulb toward the front by a reflector are formed so as to be selectively equipped. In this case, by selecting one of the lighting fixtures and mounting it on the telescopic support, it is possible to obtain appropriate light projection according to the purpose of use and the place of use.

Further, when a light shielding means capable of arbitrarily selecting and setting the light projection range from the balloon is provided on the outside or inside of the balloon, the light projection range from the balloon can be set arbitrarily. For example, when a floodlight is installed at the end of a road, it is possible to block the floodlight to a private house or the like located on the back side.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION An example of an embodiment will be described below with reference to the drawings. As shown in FIG. 1, the floodlight of this example comprises a trolley 1 on which a generator 3 is mounted, an extensible support column 2 installed upright, and a balloon-type lighting fixture 4 provided at the upper end of the extensible support column 2. The lighting device 4 protects the balloon 5, a blower device 6 as an air supply unit for inflating the balloon 5 by sending air into the balloon 5, a light bulb 7 built in the balloon 5, and the light bulb 7. It is provided with a frame body 8 and the like, and is configured so that the light emitted from the light bulb 7 can be changed into gentle light by passing through the balloon 5 to reduce glare.

The dolly 1 is such that wheels 1-2 are rotatably supported on the front, rear, left and right sides of a vehicle body base 1-1.
Is formed so that it can be detachably mounted. Dolly 1
A telescopic column 2 is erected on the rear part of the vehicle. Note that the generator 3 may be detachably or fixedly mounted on the dolly 1 without having wheels, and is not particularly limited.

The telescopic column 2 is a base pipe column on the upper rear surface of the truck 1.
2-1 is started up, and at least one middle pipe column whose inner diameter is made smaller than that of the base pipe column 2-1 in the base pipe column 2-1, two middle pipe columns 2 in the illustrated example. -2, 2-3 are slidably fitted in such a manner that they can be slid vertically, and these middle tube columns 2-2, 2-3 are slid vertically by an arbitrary lifting means so that the height of the luminaire 4 can be adjusted appropriately. It is formed so that it can be changed and set.

The lower end of the connecting column 10 is detachably connected to the upper end of the intermediate column 2-3 via a joint member 9. The lighting fixture 4 installed on the upper end of the connecting column 10 is
It is configured so that it can be detachably attached to the telescopic column 2. Although not shown, the joint member 9 is provided with an outlet for inserting and connecting the connector 11a of the power supply cable 11 for supplying power to the lighting fixture 4. Further, the connector is configured to communicate with the generator 3 via the cable 12 and supply the electric power supplied from the generator 3 to the blower device 6 of the lighting fixture 4, the light bulb 7, and the like.

The elevating means for vertically sliding the respective middle tube columns 2-2, 2-3 of the telescopic column 2 is not particularly limited, but for example, in addition to an elevating means provided with an appropriate number of pulleys, wires and winches, a gas damper A well-known structure in which each of the middle tube columns 2-2 and 2-3 can be lifted and lowered with one hand by using the repulsive force of the gas damper by incorporating the Can be preferably adopted.

As described above, the luminaire 4 is composed of the balloon 5, the blower 6, the light bulb 7, the frame 8 and the like. As shown in FIG. 2, the balloon 5 includes a cylindrical body forming sheet material 5-1 having upper and lower openings, and a body forming sheet so as to close the upper and lower openings of the body forming sheet material 5-1. Circular sheet materials 5-2, 5 on the upper and lower surfaces that are sewn to the material 5-1
-3, by sewing the outer peripheral edges of the upper and lower circular sheet materials 5-2, 5-3 along the upper and lower opening edges of the body forming sheet material 5-1 as shown in FIG. -Shaped body 5a and upper and lower surfaces 5
It is formed in a substantially drum shape surrounded by b and 5c. As a result, the balloon 5 has a structure in which wrinkles do not occur on the body portion 5a when it is inflated by the operation of the blower 6, and the indication 13 such as "under construction" or "attention" printed on the outer periphery of the body portion 5a can be read with wrinkles. There is no fear of disappearing, and the driver of the passing vehicle can be alerted. Each of the above-mentioned sheet materials 5-1, 5-2, 5-3 is a sheet material made of a synthetic resin having desired light projecting property, weather resistance, and strength, such as nylon 66, and is a horizontally long rectangular sheet. The longitudinal edges of the body are sewn together to form the body forming sheet material 5-1, and the sheet materials 5-1, 5-2, 5-3 are sewn to each other as described above. The drum type balloon 5 is configured. That is, the balloon 5 can be manufactured by sewing work at three locations, and can be manufactured easily and at low cost as compared with a substantially globe-shaped balloon that needs to stitch many locations. Although not shown, as another example of the balloon 5, a substantially frustoconical shape, an inverted frustoconical shape, or the like can be exemplified as a preferred embodiment of the present invention. In this case, the body portion forming sheet material 5 is used. It goes without saying that -1 is a shape in which the peripheral surface of the truncated cone is expanded, and the circular sheet materials 5-2 and 5-3 are shapes that form the top and bottom of the truncated cone.

The frame 8 has a light bulb 7 at the center of the balloon 5.
And a balloon 5 surrounding the bulb 7.
This is to prevent contact between the light bulb 7 and the light bulb 7, and as shown in FIGS. 4 and 5, the upper end plate 21 is provided at the center of the balloon upper surface portion 5b.
The lower end plate 22 is detachably fixed to the central portion of the balloon lower surface portion 5c, and the upper and lower plates 21, 22 are
Start up a plurality of pipe-shaped struts 23 over the space,
The balloon 5 is arranged so as to stand at the center position inside. Specifically, the upper end portion of the above-mentioned connection column 10 is connected to the center of the lower surface of the lower end plate 22.
A frame body 8 is installed at the upper end of 0, and the frame body 8 is equipped with a balloon 5, a blower 6, a light bulb 7, and the like.

Explaining the frame 8 further, a lower support plate 24 is provided above the lower end plate 22, and the blower 6 and the temperature sensor 25 are installed on the support plate 24. Further, the lower end plate 22 and the lower support plate 24 are provided with air holes 26 and 27 for supplying air to the air blower 6 at a plurality of positions as appropriate. 28 is an air hole 26 in the lower end plate 22.
And a cylindrical member for communicating the air holes 27 of the lower support plate 24.

The blower 6 supplies air into the balloon 5 in order to inflate the balloon 5 into a predetermined shape (substantially drum-shaped in this example). It consists of a fan motor. Temperature sensor 25
Is a thermostat that detects the occurrence of an abnormal condition and turns off the light bulb 7 when the temperature of the balloon 5 rises above a specified value due to the fact that the light bulb 7 remains lit and the balloon 5 is deflated for some reason. . An upper support plate 29 is provided below the upper end plate 21, and a socket 30 for mounting the light bulb 7 and a socket cover 31 are installed on the lower surface of the support plate 29. Reference numeral 32 denotes a tip portion (lower end portion) of the light bulb 7 attached to the socket 30 and held downward.
It is a light bulb holder for supporting.

As shown in FIG. 6, the light bulb holder 32 has a frame body at the inner end side of each holding piece 33 formed of a plate-shaped spring in which the outer end side is vertically slidably inserted into each pipe-shaped column 23. 8
Are formed near each other in the vicinity of the central portion thereof, and the tip ends thereof are raised to form a holding concave portion 34 into which the bulb tip portion 7a is loosely fitted. Further, each holding piece 33 extends laterally from the vicinity of the outer end of the holding piece 33, and the tip is detachably hooked to a predetermined position of the protective frame 40 to fix the light bulb holding body 32 at an appropriate height position. A locking rod 35 is provided.

As shown in FIGS. 5 and 6, the protective frame 40 is a wire-mesh-shaped frame member formed by combining a horizontal wire rod 41 curved in an arc shape and a vertical wire rod 42, and the horizontal wire rod 41. The left and right end portions of the are bent inward to form hooking portions 43 that elastically engage and disengage with the pipe-shaped support column 23, and are detachably mounted between the adjacent pipe-shaped support columns 23. Shaped to gain.

As shown in FIGS. 4 to 10, the central portion of the balloon upper surface portion 5b is engaged with the upper end plate 21 of the frame 8 so as to be detachably engaged with the upper end plate 21 by an operation from the outside of the balloon 5. The lower end plate 2 of the frame 8 is fixed by the engaging means 50.
2, the central portion of the balloon lower surface portion 5c is the balloon 5
They are connected by a fastener-type connecting means 60 that opens and closes by an operation from the outside.

The engaging means 50 overlaps with the upper end plate 21 outside the balloon 5, and together with the upper end plate 21, the balloon upper surface portion 5b.
An outer side plate 51 for sandwiching a central portion of the outer side plate, a one-touch type engaging convex member 52 rotatably mounted at a plurality of appropriate positions on the outer side plate 51, and a tip engaging portion 52a of each engaging convex member 52. The upper end plate 21 is engaged such that the engagement convex member 52 is engaged by rotation in one direction and is disengaged by rotation in the other direction.
Of the engaging convex portions 52 and through holes 54 formed in the balloon upper surface portion 5b so that the tip engaging portions of the engaging convex members 52 are inserted into the corresponding engaging concave portions 53. ing. Then, the outer plate 51 is set outside the central portion of the balloon upper surface portion 5b so as to overlap with the upper end plate 21, and the upper end plate 21 is engaged through the through hole 54 in the distal end engaging portion 52a of each engaging convex member 52. After inserting into the recess 53,
Each engaging convex member 52 is rotated in one direction to move the tip engaging portion 52.
The upper surface part 5b is fixed to the upper end plate 21 of the frame body 8 while the upper end plate 21 and the outer side plate 51 are coupled and fixed in an overlapping manner by engaging a with the engaging recess 53. From this state, each engaging convex member 52 is rotated in the other direction to release the engagement between the tip engaging portion 52a and the engaging concave portion 53, whereby the upper end plate 21 and the outer plate 51 can be separated from each other. The balloon upper surface portion 5b can be detached from the frame body 8.

The fastener type connecting means 60 forms a sheet edge portion 61 formed of a sheet material of the same material as the sheet material 5-3 forming the balloon lower surface portion 5c along the outer peripheral edge of the lower end plate 22 of the frame body 8. Then, a tooth row 62 on one side of the fastener is formed along the outer periphery of the seat edge portion 61, while an opening matching the seat edge portion 61 is provided in the central portion of the balloon lower surface portion 5c. A tooth part row 63 on the other side of the fastener is formed along the opening edge, and an opening / closing metal fitting 64 is provided on one of the tooth part rows, and both tooth part rows are opened / closed by sliding of the opening / closing metal fitting 64. ing. Then, the seat edge portion 61 and the balloon lower surface portion 5c are connected in a state where both the tooth portion rows 62 and 63 are closed, and the balloon lower surface portion 5c
Is fixed to the lower end plate 22 of the frame body 8. Further, from this state, the opening / closing fitting 64 is slid in the opening direction so that the tooth row 62,
When 63 is opened, the seat edge portion 61 and the balloon lower surface portion 5c are separated from each other, and the balloon lower surface portion 5c can be removed from the frame body 8.

In FIG. 11, the above-mentioned balloon type lighting device 4 and the lighting device 70 of the conventional type projector for projecting the light of the electric bulb 71 by the reflector toward the front can be selectively installed. Here is an example. That is, in this floodlight, in the balloon type lighting fixture 4 and the conventional lighting fixture 70, in the lighting fixtures 4 and 70, the joint member 9, the connection column 10, the power feeding cable 11, the cable 12 and the like are shared, and Of the lighting fixtures 4, 70
Each of them can be detachably attached to the upper end of the, and an appropriate lighting fixture can be selected according to the purpose of use and the place of use.

12 to 15 show an example in which the number of light bulbs 7 in the balloon type lighting fixture 4 can be changed, and FIG.
In the case of the one-lamp type described in the above example, 2 and 13 are
Reference numeral 15 represents a case of changing to a four-light type. That is, in this example, in the socket cover 31 provided on the lower surface side of the upper support plate 20 of the frame body 8, the socket 30 can be selectively installed at one central position and four peripheral positions. In the case of the one-light type, as shown in FIG. 13, the socket 30 is provided at one central position in the socket cover 31, and in the case of the four-light type, as shown in FIG. Sockets 30 are provided at four locations.

Although illustration is omitted, in each of the above-mentioned examples, the prior application (Japanese Patent Application No. 2001-1509) by the applicant of the present application
No. 11), a screen, a screen, a screen,
It is preferable to install a louver or other light shielding means on the outside or inside of the balloon 5 so that the range of light projected from the balloon 5 can be arbitrarily selected and set.

Although several examples of embodiments of the floodlight according to the present invention have been described above with reference to the drawings, the present invention is not limited to these examples, and the techniques described in each claim are given. It goes without saying that various changes can be made within the scope of the intellectual thought.

[0034]

Since the floodlight according to the present invention is constructed as described above, it has the following effects. (Claims 1 and 2) Since a balloon with a structure that does not cause wrinkles in the body when inflated is used, by displaying characters such as "under construction" and "attention" on the outer periphery of the balloon body by printing etc. The effect is that the driver of a passing vehicle can be alerted.

(Claim 3) The above-mentioned balloon is formed by mutually sewn together a cylindrical body portion forming sheet material and three sheet materials composed of upper and lower circular sheet materials. As a result, the labor, cost, etc. of manufacturing the balloon can be reduced.

(Claim 4) Since the engaging means is engaged and disengaged on the upper surface of the balloon and the fastener is opened and closed on the lower surface of the balloon, the balloon can be easily attached to and detached from the frame. There is an effect that the balloon can be easily replaced when it deteriorates due to long-term use or the like.

(Claim 5) Since the frame structure is supported by the pipe-shaped support, the strength is significantly improved as compared with the wire mesh frame, and it can withstand use in bad weather or for a long time. Has the effect of.

(Claim 6) Since the balloon type lighting equipment and the conventional lighting equipment can be selectively installed, it is possible to obtain an appropriate light projection according to the purpose of use and the place of use.

(Claim 7) Since the light projection range from the balloon can be limited to a necessary minimum, for example, the light projection is set with due consideration given to the surrounding residents and the driver of the passing vehicle during nighttime road construction. There are effects such as being able to.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of an embodiment of a floodlight according to the present invention.

FIG. 2 is an exploded perspective view of a balloon.

FIG. 3 is a front view of a balloon.

FIG. 4 is an enlarged front view of a frame body, a light bulb, etc. installed inside the balloon.

FIG. 5 is an exploded perspective view of a frame body.

FIG. 6 is a perspective view of a lower portion of the frame body.

FIG. 7 is an enlarged perspective view of a central portion on the upper surface side of the balloon.

FIG. 8 is an enlarged perspective view of a central portion on the lower surface side of the balloon.

FIG. 9 is a perspective view showing a state where the balloon is being attached.

FIG. 10 is a perspective view showing a state in which the balloon is completely attached.

FIG. 11 is a schematic view of an example in which a balloon-type lighting fixture and a conventional-type lighting fixture are interchangeable.

FIG. 12 is an exploded perspective view of a frame and a light bulb in a single-light balloon.

13 is a bottom view of the socket cover in FIG. 12.

FIG. 14 is an exploded perspective view of a frame and a light bulb in a four-light balloon.

15 is a bottom view of the socket cover in FIG. 14.

[Explanation of symbols]

1: trolley 2: Telescopic support 3: Generator 4: Balloon type lighting equipment 5: Balloon 5a: Balloon body 5b: Upper surface of balloon 5c: Lower surface of balloon 5-1: Sheet material for forming the trunk 5-2,5-3: Circular sheet material 6: Blower (air supply means) 7: Light bulb 8: frame 13: Display 21: Top plate 22: Bottom plate 23: Pipe-shaped support 40: Protective frame 50: Engaging means 60: Fastener type connecting means 70: Conventional lighting equipment

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) F21V 3/04 F21W 111: 02 21/22 131: 103 G09F 13/04 131: 105 // F21W 111: 02 F21Y 101: 00 131: 103 F21P 5/00 C 131: 105 F21S 1/10 J F21Y 101: 00 F21Q 3/00 C (72) Inventor Makoto Kiriyama 1-16-5 Kitami, Setagaya-ku, Tokyo Stock company In Green Service (72) Inventor Rie Nogami 1-16-5 Kitami, Setagaya-ku, Tokyo F-Term in Green Service Co., Ltd. (Reference) 3K060 CA11 CC02 CD00 3K080 AA12 AA14 AB01 BA01 CB07 5C096 AA06 AA24 AA25 AA29 BA01 BB02 BB04 BB07 BB13 BB22 BB27 BB28 BB31 BB41 BB48 CA02 CA12 CA28 CA32 CB01 CC12 CC32 DA01 DA02 DA08 DA09 FA03 FA07

Claims (7)

[Claims] 1. A floodlight in which an extendable column is erected on a trolley carrying a generator, and a lighting fixture is provided at an upper end of the extendable column, the illumination fixture being a balloon and air inside the balloon. Is provided with an air supply means for inflating the balloon and a bulb built in the balloon, wherein the balloon has a tubular body portion, and when the balloon is inflated, the body portion is wrinkled. A floodlight which is characterized in that it is formed so as not to occur. 2. The floodlight according to claim 1, wherein characters, figures, etc. are displayed on the body of the balloon by printing, pasting, coloring or the like. 3. The above-mentioned balloon is sewn to the cylindrical body forming sheet material having upper and lower openings, and the body forming sheet material so as to close the upper and lower openings of the body forming sheet material. The floodlight according to claim 1 or 2, comprising circular sheet materials on the upper surface side and the lower surface side. 4. A trolley on which a generator is mounted is provided with an extensible support column, and a lighting fixture is mounted on the upper end of the extensible support column, and the luminaire provides a balloon and a balloon for feeding air into the balloon. A floodlight comprising a supply means for inflating, a light bulb built in a balloon, and a frame body surrounding the light bulb, wherein the upper end portion of the frame body is in the center of the upper surface of the balloon. , The lower end portion is detachably fixed to the central portion of the lower surface of the balloon so as to stand up to the inner center position of the balloon, and the fixing means of the central portion of the upper surface of the balloon to the upper end portion of the frame can be operated from the outside of the balloon. The upper end of the frame is formed by engaging means that is releasably engaged, and the center of the lower surface of the balloon is fixed to the lower end of the frame by a fastener-type connecting means that opens and closes by an operation from outside the balloon. , A floodlight with a balloon attached to the frame in a replaceable manner. 5. A trolley on which a generator is mounted is provided with an extensible support column, and an illuminating device is installed at the upper end of the extensible support, and the illuminating device supplies a balloon and a balloon by sending air into the balloon. A floodlight comprising an air supply means for inflating, a light bulb built in a balloon, and a frame body surrounding the light bulb, the frame body being detachably fixed to a central portion of an upper surface of the balloon. Upper end plate, a lower end plate removably fixed to the center of the lower surface of the balloon, a plurality of pipe-shaped columns standing between the upper and lower plates, and detachably mounted between adjacent pipe-shaped columns A floodlight that is composed of a wire mesh-shaped protective frame. 6. A floodlight in which a telescopic column is erected on a trolley on which a generator is mounted, and a lighting device is mounted on an upper end of the telescopic column, wherein a light bulb is provided in a balloon inflated by an air supply means. A floodlight, characterized in that a built-in balloon type lighting device and a lighting device for projecting light from a light bulb toward the front by a reflector are selectively installed. 7. The light shielding means capable of arbitrarily selecting and setting a light projection range from the balloon is provided on the outside or inside of the balloon. Floodlight.