JP5358271B2 - Work lighting - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting tool for work that can be freely attachably/detachably fixed to an aerial cable, or a rod-like member and allows the adjustment of an illumination irradiation direction. <P>SOLUTION: The lighting tool 10 includes an openable/closable clamp 1, an arm 2, and an illuminating lamp 3. The clamp 1 holds an aerial cable 1w or a rod-like member. The arm 2 is coupled to an opening/closing shaft of the clamp 1 and has a set of freely-bendable joints 21, 22. The illuminating lamp 3 is fixed to the tip of the arm 2. The clamp 1 has a pair of curved arms 11, 12 and a pair of ring springs 13. The pair of curved arms 11, 12 is configured, such that their base ends are coupled to each other by the opening/closing shaft 1a so as to allow opening/closing of its each tip. Each ring spring 13 urges a force for closing each tip of the pair of curved arms 11, 12. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a work lighting device. In particular, the present invention relates to a working lighting device suitable for nighttime power distribution work by the indirect hot wire method.

  There are two types of hot-line work that performs power distribution work for overhead power lines without power interruption: direct hot-wire method and indirect hot-wire method. In the direct hot wire construction method, workers wearing protective equipment such as high-pressure rubber gloves directly touch the live overhead wire for power distribution work. On the other hand, the indirect hot wire construction method can use a hot stick (insulating operation rod) or the like to perform power distribution work without directly touching the overhead wire being energized by the operator. In recent years, the direct hot line method has been switched to the indirect hot line method from the viewpoint of improving the working environment and making it intrinsically safe.

  The hot stick is equipped with a tool for power distribution work at the tip, and this tool can be remotely operated with a handy operation unit. An operator who performs power distribution work can cut or connect an overhead wire using a hot stick.

  For example, in the restoration work of a power outage accident, the power distribution work by the indirect hot wire method described above may be performed at night. In this night work, the work is performed by fixing the light from the ground, the cap light, or the lighting fixture to the utility pole.

  However, in the illumination described above, the operator or tool is in the shadow, making it difficult to see the work location. In particular, when a hot stick is used, the details of the tool are unclear and there is a problem that fine power distribution work is difficult.

  With respect to such problems, there is disclosed a working lighting device that can easily shine light on a work location, reduce the burden on the worker, and contribute to an improvement in work efficiency (for example, Patent Documents). 1).

  The working lighting device according to Patent Document 1 includes a case body incorporating a battery and an illuminating body capable of swinging. An inverted U-shaped attachment member is attached to the outer peripheral surface of the case body. This attachment member can be attached to the upper edge part of the bucket of an aerial work vehicle used for power distribution work. Moreover, the illumination body is arrange | positioned in the case body through the fixing | fixed part.

  In addition, when the hole in the conductor insertion part of the connection sleeve is shaded in the terminal processing work of the electric wire at night or in a dark place, for the above-mentioned problems, it can be surely caught even if the hole in the conductor insertion part is dark. A working lighting device that can improve the work efficiency of power distribution work is disclosed (for example, see Patent Document 2).

  The working illuminator according to Patent Document 2 is a working illuminator that is clamped on an object to be clamped such as an electric wire or a pipe, and includes a pair of clamping pieces, a biasing unit, and a plurality of light emitters. The pair of sandwiching pieces are connected to each other so that the tip portion can be opened and closed. The urging means urges the force in the direction in which the tip portions of both the sandwiching pieces are closed. The plurality of light emitters are disposed at the front ends of both sandwiching pieces.

Japanese Utility Model Publication No. 7-40279 Japanese Patent Application Laid-Open No. 2007-200760

  The work lighting device according to Patent Document 1 is premised on power distribution work by an indirect hot wire method on a flat ground where an aerial work vehicle can be parked. However, for example, it may be difficult to park an aerial work vehicle in a mountainous area. In the case of emergency construction, it may not be possible to arrange an aerial work vehicle in time.

  On the other hand, the working illuminator according to Patent Document 2 is actually applied to a compression tool that presses an opening portion of an insulating sheet that covers an electric wire, and its use is limited. Moreover, since the several light-emitting body is being fixed to this compression tool, there exists a problem that the irradiation direction of illumination is specified.

  For example, if a working illuminator that can be detachably fixed to the tip of an overhead wire or hot stick and that can adjust the illumination direction of illumination can be realized, light can be easily applied to the work site without requiring an aerial work vehicle. Can contribute to the improvement of work efficiency. The above can be said to be the subject of the present invention.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a working illuminator that can be detachably fixed to an overhead wire or a rod-like member and that can adjust the illumination direction of illumination. .

  The inventor of the present invention has these problems by configuring a working illuminator with a clamp that is detachably fixed to an overhead wire or a rod-shaped member, and an illuminating lamp that is fixed to the distal end portion of a joint arm connected to the clamp. Has been found to be solvable, and based on this, the inventors have invented the following new working lighting fixture.

  (1) A clamp that opens and closes that can hold an overhead wire or a rod-like member, an arm that is connected to an opening and closing shaft of the clamp, has one or more bendable joints, and is fixed to the tip of the arm An illuminating lamp, and the clamp includes a pair of curved arms that connect the base end portions to each other so that the opening and closing shafts can be opened and closed, and a bias that biases the closing force of the distal ends of these curved arms. Means and a working illuminator.

  The working lighting device according to the invention of (1) includes a clamp that opens and closes, an arm, and an illumination lamp. The clamp can hold an overhead wire or a rod-shaped member. The arm is connected to the open / close shaft of the clamp and has one or more bendable joints. The illuminating lamp is fixed to the tip of the arm.

  The clamp has a pair of curved arms and biasing means. The pair of curved arms have their opening and closing shafts connecting the base ends to each other so that their distal ends can be opened and closed. The urging means urges a force that closes the distal ends of the pair of curved arms.

  For example, the clamp is defined in the dictionary as “curved strip-shaped metal fitting for fastening and fixing a rod-shaped object”. Here, the clamp that opens and closes means that a pair of opening and closing members (a pair of curved arms) are opened to receive an overhead wire or a rod-shaped member. And a pair of opening-and-closing member closes and an overhead wire or a rod-shaped member can be clamped (clamp). The clamp that opens and closes can quickly fix an elongated rod-like object (an overhead wire or a rod-like member) at an arbitrary position.

  The rod-like member here is assumed to be a handle portion of a hot stick. In general, a hot stick is composed of a tool part to which a tool for power distribution work of an overhead wire can be attached, an operation part for remotely operating the tool of the tool part, and a long tube body connecting the tool part and the operation part. It has a handle.

  If the clamp of the working illuminator according to the present invention is attached to the handle near the tool portion, the power distribution work can be performed while light is easily applied to the work location. However, the rod-shaped member is not necessarily limited to the handle portion of the hot stick. It suffices if there is a rod-shaped member in the vicinity of the work location, and this clamp may be attached to a rising pole bolt provided on the utility pole.

  The pair of curved arms that are the main components of the clamp preferably have insulating properties, and can prevent a short circuit. The insulating curved arm may be a curved arm made of a non-conductive material, and an insulating curved arm having a desired shape can be obtained by molding a synthetic resin.

  The open / close shaft may be fixed to either one of the pair of curved arms, and may be extended substantially parallel to the extending direction of the overhead wire or the rod-shaped member, and constitutes the base end portion of the arm. The arm has one or more bendable joints in a path from the base end to the tip. It is preferable to provide two joint portions. The joint is preferably adjusted to a predetermined refraction angle and fixed with a fastener such as a screw.

  It is preferable that the illuminating lamp secures an illuminance of 70 lux or more at the work site at night. For example, the illuminating lamp may be a flashlight with a dry cell built in a cylinder, and the bulb disposed at the head may be an incandescent bulb or an LED. LEDs have the advantages of long life and low power consumption. The flashlight is preferably detachably fixed to the tip of the arm, and a pedestal on which the flashlight turns may be provided at the tip of the arm.

  Each curved arm preferably forms an arc with a gentle curvature, and if the overhead wire or the rod-like member is sandwiched between the substantially parallel inner walls of the pair of curved arms, the diameters of the curved arms are not limited. If a rubber plate is attached to the substantially parallel inner walls of the pair of curved arms, it is possible to prevent slippage between the overhead wire or the rod-shaped member.

  As the urging means, a “spring” made of a steel wire as an entity may be preferably used, and a ring-shaped steel wire spring partially cut off may be disposed so as to surround the opening / closing shaft. If the pair of opposed distal ends of the springs are brought into contact with the outside of the pair of curved arms, a force for closing the distal ends of the curved arms can be applied.

  Further, the biasing means may use a torsion coil spring, the winding portion may be mounted on the opening / closing shaft, and a pair of coil terminals that open in a V shape are placed inside a pair of operation pieces to be described later. If it arrange | positions, the force which the front-end | tip part of these curved arms closes can be urged | biased.

  Since the work lighting device according to the invention of (1) includes a clamp that is detachably fixed to an overhead wire or a rod-like member, there is an advantage that an aerial work vehicle is not necessarily required. In addition, the work lighting device according to the invention of (1) includes an illuminating lamp fixed to the distal end portion of a bendable arm connected to the clamp, so that the illumination irradiation direction can be adjusted, so that the work location can be adjusted. Can easily shine light.

  (2) One curved arm of the pair of curved arms has a pair of branched arms that branch toward the distal end portion thereof, and the other curved arm of the pair of curved arms is a distal end portion thereof. The working illuminator according to (1), wherein the lighting device has a single arm that is positioned between the pair of branch arms and moves forward and backward.

  In the working lighting device according to the invention of (2), the pair of curved arms is composed of a pair of branch arms and a single arm that moves forward and backward between the pair of branch arms. A force for bending the axial direction acts on the member, and the clamp can be firmly held by the overhead wire or the rod-shaped member. Moreover, it is possible to grip overhead wires or rod-shaped members having various thicknesses (diameters).

  (3) The clamp has a pair of operation pieces that are opened by extending the base ends of the pair of curved arms, and these operation pieces are the tips of the gripping tool attached to the tip of the hot stick. The working illumination tool according to (1) or (2), wherein a concave portion capable of receiving a pair of gripping pieces opened and closed provided in the portion is formed on an outer surface.

  The work lighting device according to the invention of (3) can be easily operated using a hot stick, and can be fixed in advance to an overhead overhead wire.

  Since the working lighting device according to the present invention includes a clamp that is detachably fixed to an overhead wire or a bar-like member, there is an advantage that an aerial work vehicle is not necessarily required. In addition, the work lighting device according to the present invention includes an illuminating lamp fixed to the distal end portion of a bendable arm connected to the clamp, so that the illumination irradiation direction can be adjusted, and light can be easily applied to the work location. Can be applied.

It is a front view which shows the external appearance of the working lighting fixture by one Embodiment of this invention. It is a left view which shows the external appearance of the working lighting fixture by the said embodiment. It is a front view of the clamp with which the working lighting fixture by the said embodiment is equipped. It is a left view of the clamp with which the working lighting fixture by the said embodiment is equipped. FIG. 3 is a perspective view of the working lighting device and the hot stick according to the embodiment, and is a state diagram in which the working lighting device is attached to the hot stick.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  FIG. 1 is a front view showing an appearance of a working lighting device according to an embodiment of the present invention. FIG. 2 is a left side view showing the appearance of the work lighting device according to the embodiment. FIG. 3 is a front view of a clamp provided in the working illumination tool according to the embodiment. FIG. 4 is a left side view of a clamp provided in the working lighting device according to the embodiment. FIG. 5 is a perspective view of the working lighting device and the hot stick according to the embodiment, and is a state diagram in which the working lighting device is attached to the hot stick.

  Initially, the structure of the working lighting tool (henceforth a lighting tool) by embodiment of this invention is demonstrated. Referring to FIG. 1 or FIG. 2, the luminaire 10 includes a clamp 1 that opens and closes, an arm 2, and an illumination lamp 3. The clamp 1 can hold the overhead wire 1w. The clamp 1 can also hold a rod-shaped member such as the handle portion 93 of the hot stick 9.

  Referring to FIG. 1 or FIG. 2, the clamp 1 extends one end of the opening / closing shaft 1 a in the axial direction. The base end portion of the arm 2 constitutes a first joint portion 21 that is refractably connected to the extended end portion of the opening / closing shaft 1a. Further, the distal end portion of the arm 2 constitutes a second joint portion 22 that is refractably connected to the base 4. The illumination lamp 3 is fixed to the pedestal 4. In other words, the illuminating lamp 3 is fixed to the tip of the arm 2 with the pedestal 4 interposed.

  Referring to FIG. 3 or FIG. 4, the clamp 1 has a pair of curved arms 11 and 12. The clamp 1 has a pair of ring-shaped steel wire springs (hereinafter referred to as ring springs) 13 and 13 that serve as biasing means. The pair of curved arms 11 and 12 have their opening and closing shafts 1 a connected to their base ends so that their distal ends can be opened and closed. The pair of ring springs 13 and 13 urges the force of closing the distal ends of the pair of curved arms 11 and 12.

  Referring to FIG. 3 or FIG. 4, one curved arm 11 has a pair of branch arms 111 and 111 that branch toward the tip portion. The other curved arm 12 has a single arm 121 whose front end portion is located between the pair of branch arms 111 and 111 and moves forward and backward.

  3 or 4, the clamp 1 has a pair of operation pieces 112 and 122 that are opened at the base ends of the pair of curved arms 11 and 12. When the operation piece 112 and the operation piece 122 are relatively brought close to each other against the urging force of the pair of ring springs 13 and 13, the distal ends of the pair of curved arms 11 and 12 can be opened.

  Referring to FIG. 3 or FIG. 4, the pair of operation pieces 112 and 122 has a concave portion 11 a and a concave portion 12 a formed on their outer surfaces. In addition, the effect | action of the recessed part 11a and the recessed part 12a provided in a pair of operation piece 112 * 122 is mentioned later.

  3 or 4, the pair of curved arms 11 and 12 are formed of an insulating synthetic resin. An extended portion of the opening / closing shaft 1a is formed integrally with one curved arm 11. Since the pair of curved arms 11 and 12 which are the main components of the clamp 1 have insulating properties, for example, a short circuit with the overhead wire 1w can be prevented (see FIG. 2).

  Referring to FIG. 1 or FIG. 2, the base end portion of the arm 2 is bifurcated, and holds the extended end portion of the opening / closing shaft 1a. The first joint portion 21 is provided with a fixing screw 21a. When the knob on the head of the fixing screw 21a is rotated in one direction, the base end of the arm 2 is fastened to the extended end of the opening / closing shaft 1a, and the refraction angle between the opening / closing shaft 1a and the arm 2 is fixed. When the knob on the head of the fixing screw 21a is rotated in the other direction, the fastening between the extended end of the open / close shaft 1a and the base end of the arm 2 is released, and the refraction angle between the open / close shaft 1a and the arm 2 can be adjusted.

  Referring to FIG. 1 or FIG. 2, the tip of the arm 2 is bifurcated and holds the support shaft of the pedestal 4. The second joint portion 22 is provided with a fixing screw 22a. When the knob on the head of the fixing screw 22a is rotated in one direction, the support shaft of the pedestal 4 is fastened to the tip of the arm 2, and the refraction angle between the pedestal 4 and the arm 2 is fixed. When the knob on the head of the fixing screw 22a is rotated in the other direction, the fastening between the support shaft of the base 4 and the tip of the arm 2 is released, and the refraction angle between the base 4 and the arm 2 can be adjusted.

  Referring to FIG. 1 or FIG. 2, the illuminating lamp 3 uses a flashlight with a dry cell built in a cylinder. An LED (not shown) is disposed at the tip of the flashlight, and the night work site is configured to ensure an illuminance of 70 lux or more.

  Referring to FIG. 1 or FIG. 2, the pedestal 4 is provided with a clip 4b for an illuminating lamp that is open at one end. The opening portion of the clip 4b can be fastened with screws to fix the illumination lamp 3. Moreover, the clip 4b is connected with the main body of the base 4 so that rotation is possible.

  Referring to FIG. 1 or FIG. 2, the pedestal 4 is provided with a fixing screw 4a on the outer periphery of the main body. When the fixing screw 4a is rotated in one direction, the illumination lamp 3 can be turned with respect to the pedestal 4. When the fixing screw 4a is rotated in the other direction, the turning angle of the illumination lamp 3 with respect to the base 4 can be fixed.

  Next, the effect | action of the lighting fixture 10 by embodiment of this invention is demonstrated.

  Referring to FIG. 1 or FIG. 2, when the fixing screw 21a is loosened, the arm 2 can be rotated in the first direction R or the second direction L with respect to the opening / closing shaft 1a. When the fixing screw 22 a is loosened, the base 4 can be rotated in the first direction R or the second direction L with respect to the arm 2. When the fixing screw 4a is loosened, the illumination lamp 3 can be turned in the third direction P or the fourth direction Q with respect to the base 4.

  As described above, the lighting device 10 according to the embodiment of the present invention includes the two joint portions 21 and 22 that can be refracted with respect to each other, and further fixes the illuminating lamp 3 to the pivotable clip 4b with respect to the pedestal 4. Therefore, the illuminating lamp 3 can be directed in a desired direction. That is, the illumination direction can be adjusted.

  Referring to FIGS. 1 to 4, the pair of curved arms 11 and 12 form a circular arc with a gentle curvature, and the diameter of the overhead wire 1w or the rod-shaped member to be sandwiched is not relatively limited. Since the pair of curved arms 11 and 12 have rubber plates 11r and 12r attached to their inner walls, they can be prevented from slipping with the overhead wire 1w or the rod-shaped member.

  The clamp 1 according to the embodiment of the present invention is suitable for power distribution work because an elongated rod-like object (an overhead wire or a rod-like member) can be quickly fixed at an arbitrary position from the outer peripheral direction.

  Referring to FIG. 5, the clamp 1 according to the embodiment of the present invention can also sandwich the handle portion 93 of the hot stick 9. The hot stick 9 shown in FIG. 5 includes a tool unit 91 to which a tool for power distribution work of the overhead wire 1w can be attached, an operation unit 92 for remotely operating the tool of the tool unit 91, and the tool unit 91 and the operation unit 92. A handle portion 93 made of a long tubular body to be connected is provided.

  When the clamp 1 according to the embodiment of the present invention is attached to the handle portion 93 in the vicinity of the tool portion 91, power distribution work can be performed while shining light easily on the work location. Moreover, if the clamp 1 is attached to the overhead wire 1w, power distribution work can be performed while light is easily applied to the work site.

  Since the lighting fixture 10 according to the embodiment of the present invention includes the clamp 1 that is detachably fixed to the overhead wire 1w or the rod-shaped member, there is an advantage that an aerial work vehicle is not necessarily required. Moreover, since the illuminating device 10 according to the embodiment of the present invention includes the illuminating lamp 3 fixed to the distal end portion of the bendable arm 2 connected to the clamp 1, the illumination irradiation direction can be adjusted, and the work Can easily shine light on the spot.

  The lighting fixture 10 according to the embodiment of the present invention can also implement the usage pattern shown in FIG. Referring to FIG. 5, a gripping tool 90 is attached to the tool portion 91 at the tip of the hot stick 9. The gripping tool 90 includes a pair of gripping pieces 9a and 9b that open and close. One grip piece 9a is a fixed piece with a base end portion fixed, and the other grip piece 9b is a movable piece whose base end portion is rotatably connected to one grip piece 9a.

  Referring to FIG. 5, the hot stick 9 holds the operating rod 9 c substantially parallel to the handle 93. And the front-end | tip part of the action | operation bar 9c is connected with the other holding piece 9b so that rotation is possible, and the base end part of the action | operation bar 9c is connected with the operation lever 9d.

  Referring to FIG. 5, when the operation lever 9d is brought close to the operation unit 92, the pair of grip pieces 9a and 9b can be closed. When the operation lever 9d is separated from the operation portion 92, the pair of grip pieces 9a and 9b can be opened. In this way, the gripping tool 90 can grip the object to be clamped such as an overhead wire by operating the operation lever 9d.

  Referring to FIG. 5, the distal end portions of the pair of grip pieces 9 a and 9 b are connected to the concave portions 11 a and the concave portions 12 a provided on the pair of operation pieces 112 and 122 of the lighting device 10. The illustrated lighting tool 10 can open and close the pair of curved arms 11 and 12 by operating the operation lever 9d (see FIGS. 3 and 4).

  The lighting fixture 10 shown in FIG. 5 may be connected to the hot stick 9 in advance, and the lighting fixture 10 can be fixed to the overhead wire 1w using the hot stick 9 (see FIG. 1). In the nighttime power distribution work, light can be easily applied to the work place, which can contribute to improvement of work efficiency.

DESCRIPTION OF SYMBOLS 1 Clamp 1a Opening-and-closing axis 1w Overhead wire 2 Arm 3 Illumination lamp 10 Illumination equipment (working illumination equipment)
11.12 Pair of curved arms 13 Ring spring (biasing means)
21 First joint (joint)
22 Second joint (joint)

Claims (2)

A clamp that opens and closes an overhead wire or a rod-shaped member; and
An arm having one or more bendable joints connected to the opening and closing shaft of the clamp;
An illumination lamp fixed to the tip of this arm,
The clamp is
A pair of curved arms in which the opening and closing shaft connects the base ends to each other so that the distal end can be opened and closed;
An urging means for urging the closing force of the distal ends of these curved arms;
A pair of operation pieces that are extended at the base end portions of the pair of curved arms to open angles;
These operation pieces are working illuminators in which concave portions capable of receiving a pair of opening and closing grip pieces provided at the tip portion of a gripping tool attached to the tip portion of the hot stick are formed on the outer surface . One curved arm of the pair of curved arms has a pair of branched arms that branch toward the tip portion thereof,
2. The working illumination tool according to claim 1, wherein the other curved arm of the pair of curved arms has a single arm whose front end portion is positioned between the pair of branched arms and moves forward and backward.

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