JP6501152B2 - Marking device for safety limit position of indirect hot wire tool - Google Patents

Description

  The present invention relates to a device for indicating the safety limit position of an indirect hot-line tool which marks the safety limit position of the indirect hot-line tool.

  Indirect hot-line tools are conventionally provided for performing indirect operations. The indirect hot-wire tool is provided with an insulating operating rod 101 having an insulating property as shown in FIG.

  The insulating operation rod 101 is disposed on the rod body 102 and on the proximal end side of the rod body 102, on the grip 103 for gripping by the operator, and on the tip end side of the rod body 102. It is disposed between the rain trim 104 for preventing the flow from the side to the proximal end, and between the rain trim 104 and the grip 103 in the rod body 102, and secures a safe distance between the operator and the charger. (See Patent Document 1).

  In addition, when carrying out electrical installation work such as maintenance work of distribution lines, the operator gets on the bucket equipped with the work of the high-altitude work vehicle, moves the bucket to the work area, and uses the indirect hot-wire tool 100 The work of

  In addition, on the ground, the site manager monitors the worker so as not to approach the live line (charging unit) beyond a predetermined distance. Specifically, the field manager monitors the worker for the safety limit position while visually recognizing the safety limit position (safety limit position marker 105) of the indirect hot-line tool 100.

JP, 2008-206253, A

  By the way, there is a problem that the worker and the person in charge at the site may overlook the safety limit position when performing the indirect live work in a dark place such as night time.

  Then, an object of the present invention is to provide a marking device of safety limit position of an indirect hot-wire tool which can improve safety of a work site in view of the above-mentioned problem.

The indication device of the safety limit position of the indirect hot-line tool according to the present invention comprises a main body attachable to the safety limit position of the indirect hot-wire tool, and an illumination attached to the main body, the main body being umbrella shaped has a flange portion, the illumination is characterized Rukoto which have a light emitter including a light emitting portion provided on lead-out hole that opens at the open end face of the flange portion.

  According to this configuration, it is possible to mark the safety limit position of the indirect hot-line tool outside in a dark place such as at night by illuminating the illumination brightly. Thereby, the worker using the indirect hot-line tool can visually recognize the safety limit position. In addition, the site manager monitoring from the ground can visually recognize the safety limit position of the indirect hot-line tool. Therefore, the safety of the work site is improved. In addition, since the indication device of the safety limit position of the indirect hot wire tool can be attached to the safety limit position of the indirect hot wire tool, it can be coped with by removing it from the indirect hot wire tool at the time of withstand voltage test.

As one mode of the indication device of the safety limit position of the indirect hot-line tool according to the present invention, the main body has a cylindrical attachment part attached to the rod body of the indirect hot-line tool, and the hook part is the attachment part of the end portion is formed continuously from the opening end portion of the mounting portion flange portion linear extending toward the open end of the notch formed is preferably.

  According to this configuration, the linear notches extending from the opening end of the mounting portion to the opening end of the collar form a pair of opposed end surfaces from the opening end of the mounting portion to the opening end of the collar . Then, the space between the pair of opposing end surfaces formed by the notches is pushed out and inserted into the mounting portion from the outside of the rod body of the indirect hot wire tool, and the mounting portion is mounted on the rod body. Thereby, the safety limit position of the indirect hot-wire tool can be marked by light.

As another aspect of the marking device of the safety limit position of indirect hot tool according to the present invention, the illumination preferably has a plurality of pre-Symbol emitters.

  Since a plurality of light emitters are disposed at the open end of the ridge, light is emitted obliquely outward from the open end of the ridge, and a worker who operates an indirect hot-wire tool And, it becomes easy to visually recognize the safety limit position of the indirect hot-line tool from the position of the site manager.

  As another aspect of the marking device of the safety limit position of the indirect hot-line tool according to the present invention, the main body is preferably formed so as to be capable of being superimposed on the safety limit position mark body provided in the indirect hot-wire tool.

  According to this configuration, the main body can be positioned with respect to the safety limit position of the indirect hot-wire tool by configuring the main body so as to be able to overlap with the safety limit position marking body provided by the indirect hot-wire tool.

  As described above, according to the present invention, the safety limit position of the indirect hot-line tool in a dark place such as night time is visually recognized by the worker operating the indirect hot-wire tool and the site manager monitoring the worker. It is possible to improve the safety of the work site.

FIG. 1 is a view showing an indirect hot-line tool provided with a marking device at a safety limit position according to an embodiment of the present invention. 2 is a perspective view of the marking device of FIG. 1; FIG. 3 is a partially cut away view of the marking device of FIG. Fig.4 (a) is explanatory drawing when attaching the marking apparatus which concerns on the embodiment to the safety limit position of an indirect hot-line tool, FIG.4 (b) is a marking apparatus which concerns on the same embodiment. It is a figure which shows the state mounted | worn with the safety limit position of. FIG. 5 is an explanatory view of a work site using the indirect hot-wire tool according to the embodiment. FIG. 6 is a view showing an indirect hot-wire tool (insulated Yatsuko).

  DESCRIPTION OF THE PREFERRED EMBODIMENTS An indicator for the safety limit position of an indirect hot-wire tool according to an embodiment of the present invention will be described with reference to the drawings. In the case of the present embodiment, it is assumed that an electric work vehicle is used on the premise that electrical installation work such as maintenance work of distribution lines is performed in a dark place such as nighttime. In addition, as the indirect hot-wire tool, an insulating yatko shall be used.

  Prior to describing the present embodiment, an indirect hot-wire tool and a work platform will be described.

  In the case of the indirect hot-wire tool, in the present embodiment, an insulation Yatko will be described as an example. The insulating jack includes an insulating operating rod 10 supported by a worker, as shown in FIG. The insulating operation rod 10 is disposed on the rod body 11 and the proximal end side of the rod body 11, the grip 12 for gripping by the operator, and the tip side of the rod body 11, and the attached rainwater is on the tip side Is disposed between the rain trim 13 and the grip 12 in the rod main body 11 so as to prevent the flow from the base to the proximal end, and secures a safe distance between the operator and the charging portion. There is a wedge-shaped safety limit position marking body 14. Further, a pair of grips are provided at the tip of the insulating operation rod 10, and an operation portion for operating the pair of grips is provided on the base end side of the insulation operation rod 10. In addition, it is a transmission rod for transmitting the operation of the operation unit to the pair of grips, and further includes a transmission rod having a diameter smaller than that of the insulating operation rod 10.

  The high-altitude work vehicle is, as shown in FIG. 5, a vehicle 20 capable of traveling, which includes a vehicle 20 having a loading platform 22 on which a swingable swivel base 21 is mounted, and an extendable boom installed on the swivel platform 21. 23, a boom 23 having a bucket 24 attached at its tip, and an extendable outrigger 25 for fixing the vehicle 20 to the ground. At the work site, a lighting device 26 for irradiating the work area is installed.

  The marking device of the safety limit position of the indirect hot-wire tool according to the present embodiment includes a main body 30 attachable to the safety limit position of the indirect hot-wire tool 1 described later and the main body 30 as shown in FIGS. And a light 5 attached. Specifically, the safety limit position of the indirect hot-line tool 1 is the safety limit position marking body 14 of the indirect hot-line tool 1, and the main body 30 is formed to be able to overlap the safety limit position marking body 14 Ru.

  Specifically, as shown in FIG. 4A, the main body 30 is continuous with the attachment portion 31 covering the cylindrical portion 14a of the safety limit position marking body 14 and the end of the cylindrical portion 14a. And a brim portion 32 covering an umbrella-like collar portion 14b. Further, the main body 30 is formed with a linear notch 33 extending from the opening end of the attachment portion 31 to the opening end of the collar 32, and the notch 33 allows the opening end of the attachment 31 to form a ridge A pair of opposed end faces 34, 34 are formed across the 32 open ends. The body 30 further comprises fastening means 4 for attachment to the safety limit position marking body 14.

  The attachment portion 31 is a battery storage portion 31a provided on the outer peripheral surface so as to protrude, and is capable of storing a battery for supplying a power supply 51 for emitting a light emitter 50 described later, and the light emitter 50. The switch storage portion 31b stores the switch 52 to be turned on / off, and includes the switch storage portion 31b protruding from the outer peripheral surface of the mounting portion 31 in the vicinity of the battery storage portion 31a.

  A wiring space 32 a for wiring the pair of lead wires 50 b and 50 b of the light emitting body 50 is formed from the mounting portion 31 to the opening end of the collar portion 32. Further, at the opening end of the ridge portion 32, a lead-out hole 32b for guiding the light emitting portion 50a of the light emitting body 50 obliquely outward with respect to the outside is formed at a predetermined interval. Then, one end of the wiring space 32a communicates with the battery storage portion 31a, and the other end of the wiring space 32a communicates with the lead-out hole 32b.

  The fastening means 4 uses a fastening band in the present embodiment. Specifically, a belt body 40 fixed along the circumferential direction on both sides of the main body 30 sandwiching the battery storage portion 31a, and an engaged portion 41 disposed at the base end of the belt body 40, A locked portion 41 having an insertion hole 41 a through which the distal end side of the belt body 40 can be inserted, and a locking portion 42 formed at the front end portion of the belt body 40, of the insertion hole 41 a of the locked portion 41 And a locking portion 42 having a locking protrusion 42a lockable to the peripheral portion.

  The illumination 5 comprises a plurality of light emitters 50 disposed at the opening end of the ridge portion 32, a plurality of power sources 51 for lighting the plurality of light emitters 50, and the light emitters 50 and the power source 51 electrically. The switch 52 to be connected is provided with a switch 52 for turning on and off the light emitter 50.

  In the present embodiment, a light emitting diode (LED) is used as the light emitter 50. Specifically, the light-emitting body 50 includes a light-emitting portion 50a led out diagonally outward from the lead-out hole 32b of the collar portion 32, and a pair of lead wires 50b and 50b respectively connected to the + electrode and the-electrode. Have.

  The power supply 51 includes a DC power supply in the present embodiment. Specifically, multiple or single button cells are used. Then, the plurality of light emitters 50 are lit by the plurality or single battery.

  The switch 52 uses a waterproof specification in the present embodiment. Specifically, an operation button 52a which can be pressed and operated in a direction perpendicular to the axis of the attachment portion 31 of the main body 30, and a rubber cover 52b covering the operation button 52a from the outside are provided.

  Then, the plurality of light emitters 50 connected in series or in parallel and the plurality or single power source 51 are electrically connected via the switch 52, and the switch 52 is turned on / off. Can be turned on or off.

  Next, a usage mode of the marking device of the safety limit position of the indirect hot-wire tool according to the present embodiment will be described. It is assumed that the driver of the work vehicle 2 extends the outrigger 25 at the work site to horizontally fix the loading platform 22 to the ground. Further, the boom 23 is in a shortened state. Further, it is assumed that the illumination device 26 is turned on to illuminate the work area.

  First, the worker A mounts the marking device 3 of the safety limit position of the indirect hot-line tool at the safety limit position of the indirect hot-line tool 1. Specifically, the main body 30 is covered from the outside of the safety limit position marking body 14 by spreading the space between the pair of opposed end surfaces 34, 34 of the main body 30 formed by the notches 33. Specifically, the safety limit position marking body 14 is inserted into the main body 30, and the cylindrical cylindrical portion 14 a of the safety limit position marking body 14 is covered by the mounting portion 31 of the main body 30. The umbrella-like collar 14 b of the safety limit position marker 14 is covered by the collar 32 of At this time, the space between the pair of opposed end faces 34, 34 of the main body 30 is slightly open.

  Next, the locking projection 42a is locked to the locked portion 41 of the belt body 40 of the fastening means 4, and the pair of opposing end surfaces 34, 34 of the main body 30 are joined to each other. close up. Thereby, the main body 30 is fixed to the safety limit position marking body 14.

  Next, the worker A gets on the bucket 24 of the high-level work vehicle 2 with the indirect hot-wire tool 1 to which the light 5 is attached.

  Then, the worker A who gets on the bucket 24 turns on the switch 52 of the marking device 3 of the safety limit position of the indirect hot wire tool, and the plurality of light emitters of the marking device 3 of the safety limit position of the indirect hot wire tool 1 Turn on 50. As a result, the safety limit position of the indirect hot-wire tool 1 is illuminated.

  Next, the driver of the work vehicle 2 extends the boom 23 to move the bucket 24 to the vicinity of the cable C, and arranges the bucket 24 at a position where the worker A is easy for the worker.

  Thereafter, the worker A located near the cable C performs a required operation using the indirect hot-wire tool 1.

  The site manager B monitors the work by the worker A of the bucket 24 from the ground. Specifically, the site manager B monitors that the worker A does not approach the cable (hot wire) C beyond a predetermined distance, and the safety of the indirect hot wire tool 1 marked with lighting is The operator A is monitored for the safety limit position while visually recognizing the limit position.

  Thus, according to the tip tool of the indirect hot-line tool according to the present embodiment, the safety limit position of the indirect hot-line tool 1 in a dark place such as night, the operator A who is operating the indirect hot-line tool 1, And the field manager B who monitors the worker A with respect to the safety limit position can visually recognize, and the safety of the work site can be improved.

  The present invention is not limited to the above embodiment, and it goes without saying that various modifications can be made without departing from the scope of the present invention.

  For example, in the case of the above embodiment, the marking device 3 of the safety limit position of the indirect hot wire tool can be attached to the safety limit position marking body 14 of the indirect hot wire tool 1 It may be incorporated into the limit position marker 14. In this case, at the time of electrical installation work such as maintenance work of the distribution line, the work of attaching the indirect live tool 1 to the safety limit position marking body 14 becomes unnecessary.

  Further, in the above embodiment, an LED is used as the light emitter 50, but a filament bulb or a xenon bulb may be used. The point is that if the worker A who uses the indirect hot-line tool 1 and the site manager B who monitors the safety limit position can mark the safety limit position of the indirect hot-line tool 1 so as to be visible while working Good.

  Further, in the case of the above-described embodiment, although the insulated rod has been described as an example of the indirect hot-wire tool 1, it is a common operating rod in which a tip tool is attached to and detached from the tip of the insulating operating rod. May be a common operating rod having a grip. The point is that the safety limit position can be indicated in the indirect hot-wire tool 1.

  DESCRIPTION OF SYMBOLS 1 ... Indirect live tool, 14 ... Safety limit position mark body, 14a ... Tubular part, 14b ... Collar part, 2 ... Aerial work vehicle, 3 ... Indication apparatus of the safety limit position of an indirect live wire tool, 30 ... main body , 31: mounting portion, 32: collar portion, 33: notch, 5: illumination, 50: luminous body, 51: power source, 52: switch, A: operator, B: field manager, C: cable (active wire )

Claims (4)

A body attachable to a safety limit position of the indirect hot-wire tool, and a light attached to the body ;
The body has an umbrella-like buttocks,
The lighting, marking devices of the safety limit position of indirect hot tool, characterized in Rukoto which have a light emitter including a light emitting portion provided on lead-out hole that opens at the open end face of the flange portion. The body has a tubular attachment portion attached to the rod body indirect hot tool, the flange portion is formed continuously with the end portion of the mounting portion, the flange portion from the open end portion of the mounting portion The marking device for the safety limit position of an indirect hot-wire tool according to claim 1, wherein a linear notch extending to the open end of the bar is formed. The lighting, marking devices of the safety limit position of the indirect hot tool according to claim 2, characterized in that a plurality of said light emitters.   The safety limit position of an indirect hot-line tool according to any one of claims 1 to 3, wherein the main body is formed so as to be able to be superimposed on the safety limit position marking body of the indirect hot-line tool. Marking device.

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