JP5268851B2 - Floodlight - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simplify an operation at changing of a position or an angle of each lamp tool, and make small a part protruded outside at folding of each lamp tool in a housing part. <P>SOLUTION: A lighting system is provided with lamp brackets 11, 11 rotatably at both end parts of a light stage 10 attached in free rotation in a horizontal direction at an upper end part of a support 2 erected on a carriage, and lamp tools 12 are attached in free rotation in a horizontal and vertical directions at either end part of each of lamp brackets 11, 11. A bracket-coupling part 16 between the lamp bracket 11 and the lamp tool 12 can adjust an angle of the lamp tool 12 without an operation of a screw or a lever by fastening with bolts and nuts while a resin washer made of polyoxymethylene resin is intervened between members to retain its condition. The lamp bracket 11 is structured by coupling two members, both members are extended linearly at the time of using of a floodlight, and are bent at the time of housing. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a projector that is used for nighttime outdoor work and the like, in which a lighting device is attached to a support column installed on a carriage.

  Floodlights that use an engine-driven generator as a power source are widely used as lighting devices for road construction and construction work outdoors at night. The projector has an engine-driven generator mounted on a carriage movable by wheels, and further has a column that can be extended and contracted on the carriage, and a plurality of lamps via a support member at the tip of the column. Is provided. The support member is attached to the upper end of the support so as to be rotatable in the horizontal direction, and a lamp is attached to both ends of the support member so as to be rotatable in the horizontal and vertical directions.

  In such a projector, for example, as shown in Patent Documents 1 and 2, the illumination angle of the lamp can be freely adjusted when in use, and the carriage is moved and stored when not in use. Therefore, the column and the lamp can be folded small.

  For example, in the projector shown in Patent Document 1, the center portion of the horizontal arm is attached to the upper end of the support column in a state where it can be rotated in the horizontal direction, and can be rotated around the longitudinal axis of the horizontal arm at both ends thereof. The arm joint is mounted in a state, and the vertical arm is mounted on the arm joint so as to be rotatable about an axis perpendicular to the longitudinal axis of the horizontal arm. The lamp is mounted at the end of the vertical arm so as to be rotatable around an axis perpendicular to the longitudinal axis of the vertical arm. Further, the rotating portion between the horizontal arm and the arm joint, the arm joint and the vertical arm, and the vertical arm and the lamp can be fixed at a desired angle by a lever or a screw.

  When storing this projector, lower the column, loosen the screws and levers that secure the rotating parts between the horizontal arm, arm joint, vertical arm and lamp, and move the horizontal arm to the front position. After turning the vertical arm back to vertical, the two lamps on each of the four lamps are rotated in order to rotate the vertical arm 90 degrees about the longitudinal axis of the horizontal arm and level it. Move the two lower lamps to the front. Then, each lamp is rotated around the longitudinal axis of the vertical arm to be vertical, and bent inward so that the glass surfaces of the respective lamps face each other.

  In this way, the lamp can be stored within the distance between the vertical axis of the column and the center of the lamp when in use, and the lamp can be stored within the vertical and horizontal dimensions of the carriage when viewed from the plane. The conveyance efficiency at the time of conveying by etc. and the storage efficiency at the time of storage improve. In addition, when the lamp is not used or stored, the possibility that the lamp hits a person or an object and the lamp is damaged is reduced. Furthermore, each lamp is connected to the support column in a three-dimensionally movable manner via the vertical arm, arm joint, and horizontal arm, so that the irradiation angle can be freely adjusted. .

Japanese Patent Laid-Open No. 11-7827 JP 2005-158316 A

  By the way, when using this type of projector at a construction site, a single unit can illuminate multiple locations, avoid dazzling pedestrians and vehicle drivers, and consider the privacy protection of neighboring residents. However, when changing the position and angle of the lamp, it is necessary to loosen and close the screws and levers each time. There was a problem that it took time and effort. In addition, when each lamp is folded during storage, the width between the lamps is limited by the length of the horizontal arm, so that there is a problem that the edge of the lamp protrudes outside during transportation and storage. .

   In view of such problems, the present invention aims to simplify the operation when changing the position and angle of the lamp, and to minimize the portion protruding outward when each lamp is folded during storage. To do.

In order to solve the above-mentioned problem, the invention according to claim 1 of the present application includes a cart, a power generation device mounted on the cart, a support column that is extendable and retractable on the cart, and an upper end portion of the support column. And a lighting device that illuminates by receiving electric power from the power generation device, wherein the lighting device rotates in the horizontal direction at the middle portion at the upper end of the column. A light base that is detachably mounted, and a lamp that is attached to both ends of the light base so that the middle part thereof is rotatable about the axis of the light base so as to be orthogonal to the light base A bracket, and a lamp mounted on both ends of each of the lamp brackets so as to be rotatable in both horizontal and vertical directions. The lamp bracket is configured by connecting two members, Use of the machine Held in our extended linearly to both members, during storage of the floodlight, a structure capable of holding by bending the both members, and the lamp bracket - pivotal connection between the lamp is The structure is characterized in that a resin washer is interposed between the members and tightened with bolts and nuts.

   The invention according to claim 2 of the present application is characterized in that, in the invention according to claim 1, the resin washer is made of polyoxymethylene resin.

   The invention according to claim 3 of the present application is characterized in that, in the invention according to claim 1 or 2, a pre-leveling torque type nut (hereinafter referred to as "detent nut") is used as the nut.

The present invention has the following effects.
That is, in the invention according to claim 1, the lamp bracket is attached to both ends of the light pedestal so that the middle part thereof is pivotable about the axis of the light pedestal so that it is orthogonal to the light pedestal. A lamp is attached to both ends of each lamp bracket so that it can be rotated in both the horizontal and vertical directions. The lamp bracket is formed by connecting two members. When using the projector, both members are linear. Since the two projectors are folded and held when the projector is stored, when the lamps are folded during storage, the portion protruding outward can be made as small as possible. . In addition , the rotatable connecting part between the lamp bracket and the lamp has a structure in which a resin washer is interposed between the members and tightened with bolts and nuts. Thus, it is possible to easily adjust the position and angle of the lamp and hold it at that position without operating the screw or lever.

  In the invention according to claim 2, in the projector according to claim 1, the resin washer is made of a polyoxymethylene resin having excellent mechanical properties such as wear resistance, impact resistance, and high elastic modulus. Therefore, an appropriate frictional force can be maintained even if the angle adjustment is repeated.

  Further, in the invention according to claim 3, in the projector according to claim 1 or 2, since a detent nut having a locking function by itself is used as the nut, even if the angle adjustment is repeatedly performed, The connecting portion is not loosened, and there is no problem with the angle adjustment.

It is a figure which shows the projector which concerns on one Example of this invention. It is a figure which expands and shows the illuminating device of the projector which concerns on one Example of this invention. It is a figure which shows the bracket connection part fastening structure of an illuminating device. It is a figure which shows turning and raising of a lamp. It is a figure which shows turning of a light mount, and the raising of a lamp bracket. It is a figure which shows the main members of a lamp bracket. It is a figure which shows the basic structure of a lamp bracket. It is a figure which shows the bending operation | movement of a lamp bracket. It is a figure which shows the lamp bracket at the time of bending. It is a figure which shows the connection part of a light stand and a lamp bracket.

   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  1A and 1B are diagrams showing a projector according to an embodiment of the present invention. FIG. 1A is a front view and FIG. 1B is a side view. In FIG. 1, 1 is a lighting device, 2 is a support, 3 is a lifting handle, 4 is a carriage, 5 is a wheel, 6 is an engine generator, 7 is a cable, 8 is a handle for movement, 9 is a stabilizer, and 10 is a light. A gantry 11 is a lamp bracket.

  The support column 2 is erected on the carriage 4, and the lighting device 1 is attached to the upper end portion thereof. The support column 2 can be expanded and contracted by turning the elevating handle 3 by hand. The lighting device 1 receives power from the engine generator 6 mounted on the carriage 4 and performs lighting. The carriage 4 is movable by wheels 5, and a person grasps and pushes the movement handle 8 provided at the rear end of the carriage 4 to move it. When using the projector, the stabilizer 9 is tilted backward as shown in the figure to stabilize the carriage 4 so that it does not fall over even if the column 2 is extended upward and becomes unstable. .

  The lighting device 1 is mounted at the upper end of the column 2 so as to be rotatable in the horizontal direction, and is attached to both ends of the light frame 10 so as to be rotatable in a direction perpendicular to the axis of the light frame 10. Lamp brackets 11 and 11 are provided. The lamps 12, 12, 12, 12 are attached to both ends of the lamp brackets 11, 11 so as to be rotatable with respect to the axis of the lamp bracket 11 in both the horizontal direction and the vertical direction.

  FIG. 2 is an enlarged view showing a lighting device for a projector according to an embodiment of the present invention. The same reference numerals as those in FIG. 1 denote the same components. Reference numeral 13 denotes a lamp, 14-angle adjusting joint, 15 denotes a lamp mounting bracket, 16 denotes a bracket connecting portion, and 17 denotes a lamp bracket mounting bolt.

  The light gantry 10 is attached to the upper end of the column 2 so as to be rotatable in the horizontal direction. A lamp bracket 11 is rotatably attached to both end surfaces of the light gantry 10 by a lamp bracket mounting bolt 17. Yes. An angle adjustment joint 14 is rotatably attached to both end faces of the lamp bracket 11 by a bracket connecting portion 16, and a lamp attachment is provided on a surface perpendicular to the end face of the angle adjustment joint 14. A bracket 15 is rotatably mounted by a bracket connecting portion 16, and a lamp 12 having a lamp 13 is fixed to an end surface perpendicular to the connecting surface of the lamp mounting bracket 15.

  As described above, the lamp bracket 11 and the angle adjustment joint 14 and the angle adjustment joint 14 and the lamp mounting bracket 15 are connected by the bracket connecting portion 16, but the bracket connecting portion 16 has a structure as shown in FIG. ing. FIG. 3 shows the connection location between the angle adjustment joint 14 and the lamp mounting bracket 15, but the connection location between the lamp bracket 11 and the angle adjustment joint 14 has the same structure.

  In FIG. 3, 16a is a bolt, 16b and 16e are flat washers, 16c and 16d are resin washers, 16f is a corrugated washer, and 16g is a detent nut. The resin washers 16c and 16d have excellent mechanical properties such as wear resistance, impact resistance, and high elastic modulus, for example, and are formed using a polyoxymethylene resin known by the name of Duracon. Yes. Since such resin washers 16c and 16d are interposed between the respective members, if the bolts 16a and the detent nuts 16g are tightened with an appropriate force, the bracket connecting portions of the respective portions of the lighting device 1 are formed by the opposing members. It is held with an appropriate frictional force, and the angle of each part can be adjusted and held at that position without operating a screw or lever. Moreover, the effect can be maintained even if the angle adjustment is repeated.

  Further, since the detent nut 16g having a locking function by itself is used as a nut for tightening, even if the angle adjustment is repeatedly performed, the bracket connecting portion 16 is loosened and the angle adjustment may be hindered. Absent.

  4A and 4B are diagrams showing turning and lifting of the lamp. FIG. 4A is a view of turning of the lamp from the upper side, and FIG. 4B is a view of raising and lowering of the lamp from the side. is there. By rotating the bracket connecting portion between the lamp bracket 11 and the angle adjustment joint 14, as shown in FIG. 4 (A), the lamp 12 can turn 90 degrees left and right around the front position. Further, by rotating the bracket connecting portion between the angle adjusting joint 14 and the lamp mounting bracket 15, as shown in FIG. 4B, the lamp 12 has an angle angle of 90 ° up and down around the horizontal position. I can say.

  FIG. 5 is a view showing the turning of the light mount and the lifting of the lamp bracket. FIG. 5 (A) is a view of the turning of the light mounting from the upper side, and FIG. It is the figure seen from the side. The light gantry 10 is attached to the support column 2 so as to be rotatable in the horizontal direction. In order to protect the cable 7, a stopper (not shown) is provided so as not to turn more than a predetermined angle. As shown in A), the vehicle can turn in the range of about 170 ° from side to side. The turning and fixing of the light base 10 is fixed and released by the light base fixing lever 18.

  On the other hand, the lamp bracket 11 is pivotally attached to both ends of the light mount 10, but the rotation is limited by the arc-shaped groove, and as shown in FIG. 5B, the lamp bracket 11 faces downward from the horizontal irradiation position. It can be lifted by 90 ° between the positions. Further, the lamp bracket 11 is fixed and released by the lamp bracket fixing lever 19.

  As a result of the structure of the projector according to the present invention, each lamp 12 can be individually swung and raised by a simple operation, and the lamp 12 can be directed in various directions. The illumination angle can be adjusted as appropriate in order to illuminate the lighting, to avoid dazzling pedestrians and vehicle drivers, and to consider the privacy protection of neighboring residents. Furthermore, if a 2-light-4 light changeover switch is provided so that the brightness and illumination range can be adjusted, more detailed considerations can be given to pedestrians, vehicle drivers, neighboring residents, etc. .

  Next, the lamp bracket 11 will be described. 6A and 6B are diagrams showing the main members of the lamp bracket. FIG. 6A is a first lamp bracket member shown in a front view and a plan view, and FIG. 6B is a second lamp bracket member. These lamp bracket first member and lamp bracket second member are used in combination as shown in a front view and a plan view in FIG.

  The lamp bracket first member and the lamp bracket second member are formed by processing metal plates, and are formed by bending the vertical plates 11a-1 and 11b-1 and the top plates 11a-2 and 11b, respectively. -2 and end face portions 11a-3 and 11b-3. The vertical plate portions 11a-1 and 11b-1 are respectively provided with bolt holes 11a-4 and 11b-4 and arc-shaped holes 11a-5 and 11b-5 at corresponding positions, and the top plate portions 11a-2 and 11b. -2 are provided with bolt holes 11a-6 and notches 11b-6 at corresponding positions. Further, the end face portions 11a-3 and 11b-3 are provided with bolt holes (not shown) through which the bolts 16a for connecting to the angle adjusting joint 14 are passed.

  Such a lamp bracket first member 11a and a lamp bracket second member 11b, as shown in FIG. 7, are both vertical plate portions 11a-1, 11b-1 and both top plate portions 11a-2, 11b-2. Are attached to the bolt holes 11 a-4 and 11 b-4 through the bolts 16 a so as to be pivotable to the end surface of the light mount 10. Then, the lamp bracket first member 11a and the lamp bracket second member 11b are linearly held by tightening the bolt hole 11a-6 and the notch 11b-6 through a bolt with a knob, which will be described later. The angle of the lamp bracket 11 is fixed by tightening the holes 11a-5 and 11b-5 through a lamp bracket fixing lever described later.

  As shown in FIG. 2, the lamp bracket 11 has a lamp bracket first member and a lamp bracket second member fastened with a bolt 20 with a knob and held in a straight line as shown in FIG. use. In addition, the bolt 20 with a knob attaches a knob to the head of the bolt so that it can be easily turned by hand.

  On the other hand, when retracting the projector, as shown in FIG. 8 (A), the lamp bracket fixing lever 19 is loosened to the horizontal position while the lamp bracket 11 is held linearly by the bolt 20 with the knob. After the rotation, the lamp bracket fixing lever 19 is fastened and fixed again. Then, the lamps 12 and 12 are tilted downward so that the light irradiation surfaces of the lamps 12 and 12 face the light irradiation surface of the lamp attached to the other lamp bracket 11. In this state, the knob-attached bolt 20 and the lamp bracket fixing lever 19 are loosened, and the lamp bracket first member 11a is bent downward as shown in FIG. 8B. By doing so, the amount by which the lamp 12 protrudes outward can be reduced by α, and the space required for storage and transportation can be reduced accordingly.

  When the lamp bracket first member 11a is bent downward, as shown in FIG. 9, the lower surface of the top plate portion 11a-2 of the lamp bracket first member 11a is the vertical plate portion 11b of the lamp bracket second member 11b. It abuts on the corner portion P of -1, and does not bend any more. Thereafter, when the lamp bracket fixing lever 19 is tightened, the lamp bracket first member 11a is not bent and the bent state is maintained.

  FIG. 10 is a diagram illustrating a connecting portion between the light mount and the lamp bracket. The vertical plate portions of the lamp bracket first member 11a and the lamp bracket second member 11b are overlapped, and the lamp bracket mounting bolt 17 is attached to the end plate 10a of the light mount 10 with a washer 17a and a resin washer 17b interposed. The lamp bracket fixing lever 19 is attached by a nut 19e welded to the inner side of the end plate 10a of the light frame via a spring washer 19a, a flat washer 19b, and resin washers 19c and 19d.

  In the projector of the present invention, the lamp bracket 11 can be bent in this manner. Therefore, when each lamp is folded during storage, the lamp bracket 11 is bent so that the lamp 12 protrudes outward. Can be made as small as possible.

DESCRIPTION OF SYMBOLS 1 ... Illuminating device 2 ... Support | pillar 3 ... Lifting handle 4 ... Carriage 5 ... Wheel 6 ... Engine generator 7 ... Cable 8 ... Moving handle 9 ... Stabilizer 10 ... Light mount 11 ... Lamp bracket 12 ... Lamp fixture 13 ... Lamp 14 ... Angle adjustment joint 15 ... Lamp mounting bracket 16 ... Bracket joint 17 ... Lamp bracket mounting bolt 18 ... Light mount fixing lever 19 ... Lamp bracket fixing lever 20 ... Bolt with knob

Claims (3)

A trolley, a power generation device mounted on the trolley, a support column standing up and down on the cart, and an upper end of the support column are attached to receive power from the power generation device for illumination. A projector provided with a lighting device,
The lighting device includes a light gantry in which an intermediate portion is attached to be rotatable in a horizontal direction at an upper end portion of the column, and both ends of the light gantry so as to be orthogonal to the light gantry. A lamp bracket having an intermediate portion pivotably mounted about the axis of the light mount, and a lamp mounted to both ends of each lamp bracket so as to be pivotable in both horizontal and vertical directions; The lamp bracket is configured by connecting two members, and when the projector is used, both members are held in a straight line, and when the projector is stored, both members are bent. And a rotatable connecting portion between the lamp bracket and the lamp is a structure in which a resin washer is interposed between the members and tightened with bolts and nuts. .   The projector according to claim 1, wherein the resin washer is made of polyoxymethylene resin.   The floodlighting device according to claim 1, wherein a pre-leveling torque type nut is used as the nut.

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