JP2020156241A - Hydraulic control device - Google Patents

Abstract

To secure high versatility and excellent operability, improve safety of a worker engaged in indirect hot-line job using a hydraulic control device and reduce burdens on the worker engaged in the indirect hot-line job using the hydraulic control device.SOLUTION: A hydraulic control device 100 is configured to comprise: a grip main body 110, formed in a lengthy plane shape to be continuous along a longitudinal direction, comprising a recessed part 111 whose both ends are opened; a lever member 130, formed in a rod-shape and connected to the opposite side of the recessed part 111 in the grip main body 110, which can oscillate between a first position where the member approaches the grip main body 110 and a second position where the member separates from the grip main body 110, with a connected point to the grip main body 110 as a supporting point; a switch circuit comprising a terminal that outputs a control signal when the lever member 130 is positioned at the first position, in conjunction with oscillation of the lever member 130; and a fixing member 120 that fixes the grip main body 110 to a rod-like member 501.SELECTED DRAWING: Figure 7

Description

The present invention relates to a hydraulic control device that controls the operation of a hydraulic tip tool used for indirect live-line work.

There are hydraulic tip tools equipped with cutters and compression dies that are used for indirect live-line work and are operated by the hydraulic pressure of hydraulic oil supplied from the hydraulic pump. Such a hydraulic tip tool is used for indirect live-line work performed using an aerial work platform by utilizing the hydraulic pressure generated by a hydraulic pump driven by an engine mounted on the aerial work platform. be able to.

Such aerial work platforms are equipped with buckets for carrying workers. The bucket contains a booster (pressure booster) that raises the hydraulic pressure generated by the hydraulic pump to a predetermined pressure and supplies it to the hydraulic tip tool, a control device that controls the operation of the booster, and power to the booster and control device. A power supply device for supplying is provided.

Switching between supplying and stopping the hydraulic pressure to the hydraulic tip tool by the booster can be performed by the operation of the solenoid valve. Due to its large size and weight, this solenoid valve is provided integrally with the booster and operates in response to the operation of the operation switch provided in the control device.

Indirect live-line work requires two or more workers, and aerial work platforms are frequently used. Since the maximum number of passengers in the aerial work platform bucket is two, the indirect live-line work using the aerial work platform is performed by two workers. Specifically, in indirect live-line work using an aerial work platform, for example, one of the two workers operates a hot stick with a hydraulic tip tool attached, and the other one operates the hot stick. The operation switch provided in the control device is operated to control the supply and stop of the hydraulic pressure to the hydraulic tip tool by the booster. In this way, when the operation of the hot stick and the operation of the operation switch are shared by the two workers, the work efficiency is inferior.

In addition, in the indirect live-line work using the aerial work platform, for example, one worker assists the work performed by operating the hot stick by another person using the hot stick. In addition, there is work in which both of the two workers on the aerial work platform use the hot stick. In this case, the work is not divided as described above, and one of the two workers operates the hot stick and the operation switch provided in the control device.

On the other hand, the conventional operation switch does not have a shape that is supposed to be operated while operating the hot stick, and in this way, one worker performs the operation of the hot stick and the operation of the operation switch in parallel. In this case, the operator must grasp and operate both the hot stick and the operation switch, which is inferior in operability and places a heavy burden on the operator.

As a countermeasure, specifically, conventionally, for example, in the operation unit connected to the grip portion, at least two types of operation switches for pressurizing the hydraulic pressure and releasing the pressurization of the hydraulic pressure are installed in the insulating operation rod. For switching control, the other end is provided with an oil passage connected to one end of an oil pipe connected to the hydraulic oil flow path of the hydraulic tool, and the other end of the oil passage is provided with an electromagnetic switching valve to which each operation switch is connected. There was a technique related to an operation unit of a connected general-purpose hydraulic tool (see, for example, Patent Document 1 below).

JP-A-2009-056571

However, in the conventional technique described in Patent Document 1 described above, an oil pipe is built in, a hydraulic pipe joint is provided at one end, and a grip having an operation portion with an operation switch is provided at the other end. A special hot stick or a hydraulic tip tool that can be connected to the special hot stick is required. For this reason, there is a problem that the existing hydraulic tip tool and the existing insulating operation rod to which the existing hydraulic tip tool is retrofitted cannot be diverted, resulting in inferior practicality.

Further, in the conventional technique described in Patent Document 1 described above, since the operation switch is arranged flush with the outer surface of the grip of the dedicated hot stick, the dedicated hot stick can be used as a hydraulic tip tool. There is a problem that the hydraulic tip tool may be operated by accidentally touching the operation switch when the tool is gripped tightly to support the weight.

In this invention, in order to solve the above-mentioned problems caused by the prior art, high versatility and good operability are ensured, and the safety of the operator involved in the indirect live-line work using the hydraulic control device is improved. It is an object of the present invention to provide a hydraulic control device capable of reducing the burden on the operator involved in indirect live-line work using the hydraulic control device.

In order to solve the above-mentioned problems and achieve the object, the hydraulic control device according to the present invention has a long flat plate shape, and has a grip body having a recess that is continuous along the longitudinal direction and has both ends open, and a rod. A first position that has a shape and is connected to the opposite side of the grip body from the recess, and is separated from the grip body from a first position that is close to the grip body and a second position that is separated from the grip body with the connection position with the grip body as a fulcrum. A switch circuit having a lever member capable of swinging between the lever member and a terminal that is interlocked with the swing of the lever member and outputs a control signal when the lever member is positioned at the first position. The grip body is provided with a fixing member for fixing the grip body to the rod-shaped member.

Further, the hydraulic control device according to the present invention is characterized in that, in the above invention, the lever member includes an urging member that urges the lever member in a direction of swinging from the first position to the second position. And.

Further, the hydraulic control device according to the present invention is characterized in that, in the above invention, the grip body is provided with anti-slip processing on the wall surface of the recess.

Further, in the hydraulic control device according to the present invention, in the above invention, the tip of the finger (the first) in a state where the amount of movement of the tip of the lever member on the side opposite to the fulcrum is the extension of the adult finger. The angle formed by the length direction of the lever member with respect to the length direction of the grip body and the lever member so as to be equal to the length from the vicinity of the position (one joint) to the vicinity of the base of the finger. The feature is that the length from the fulcrum is adjusted.

According to the hydraulic control device according to the present invention, high versatility and good operability are ensured, the safety of workers involved in indirect live-line work using the hydraulic control device is improved, and the hydraulic control device is used. This has the effect of reducing the burden on workers involved in indirect live-line work.

It is explanatory drawing (the 1) which shows the structure of the hydraulic control apparatus of embodiment which concerns on this invention. It is explanatory drawing (the 2) which shows the structure of the hydraulic control apparatus of embodiment which concerns on this invention. It is explanatory drawing (the 3) which shows the structure of the hydraulic control apparatus of embodiment which concerns on this invention. It is explanatory drawing (the 4) which shows the structure of the hydraulic control apparatus of embodiment which concerns on this invention. It is explanatory drawing (the 1) which shows the use example of the hydraulic pressure control device 100 of embodiment which concerns on this invention. It is explanatory drawing (the 2) which shows the use example of the hydraulic pressure control device 100 of embodiment which concerns on this invention. It is explanatory drawing (the 3) which shows the use example of the hydraulic pressure control device 100 of embodiment which concerns on this invention.

A preferred embodiment of the hydraulic control device according to the present invention will be described in detail below with reference to the accompanying drawings.

(Configuration of hydraulic control device)
First, the configuration of the hydraulic control device according to the embodiment of the present invention will be described. 1 to 4 are explanatory views showing a configuration of a hydraulic control device according to an embodiment of the present invention. FIG. 1 shows an overall perspective view of the hydraulic control device according to the embodiment of the present invention. FIG. 2 shows a view taken along the arrow A in FIG. FIG. 3 shows an enlarged view of a part of FIG. 2. FIG. 4 shows a view taken along the line B in FIG.

In FIGS. 1 to 4, the hydraulic control device 100 according to the embodiment of the present invention includes a grip body 110, a fixing member 120, a lever member 130, and an interlock mechanism 140. The grip body 110 has a long shape. Specifically, the grip body 110 has an elongated flat plate shape. The grip body 110 is provided with a recess 111 on one side. The recess 111 is continuous along the length direction of the grip body 110.

Both ends of the recess 111 are open in the length direction. In this embodiment, the recess 111 is curved so as to be recessed inward with a predetermined curvature. The curvature of the recess 111 is curved so as to be recessed inward with the same curvature as the curvature of the peripheral edge of the circle whose diameter is the outer diameter of the hot stick to which the hydraulic control device 100 is attached.

In the grip body 110, the wall surface of the recess 111 may be subjected to anti-slip processing (not shown). The non-slip processing can be realized, for example, by attaching a sheet-like member formed of a material having a large frictional resistance such as rubber or silicon to the wall surface of the recess 111. Further, the non-slip processing may be realized by applying, for example, a material having a large frictional resistance such as rubber or silicon to the wall surface of the recess 111.

The non-slip processing may be applied to the entire wall surface of the recess 111, or may be applied to a part of the wall surface of the recess 111. When the non-slip processing is applied to a part of the wall surface of the recess 111, specifically, for example, a material having a large frictional resistance such as rubber or silicon may be provided in a grid pattern or in a stripe pattern. It may be provided in a dot shape.

The fixing member 120 is provided on the grip body 110. Specifically, the fixing member 120 can be realized by a band through hole (belt hole) 121 provided in the grip body 110 and a band-shaped member 122 passed through the through hole. Specifically, the band-shaped member 122 can be realized by, for example, a hook-and-loop fastener.

In the hook-and-loop fastener, the hook is hooked on the loop by abutting the first adhesive surface provided on one surface with a minute hook having a key shape and the second adhesive surface provided on one surface of the minute loop. Stick to each other. The first adhesive surface of the hook-and-loop fastener is, for example, one surface side of the band-shaped member 122, and is provided at one end in the length direction.

Further, the second adhesive surface of the hook-and-loop fastener is provided on the entire other surface side of the band-shaped member 122, for example. By providing the second adhesive surface on the entire other surface side of the band-shaped member 122, the hydraulic control device 100 can be reliably attached to the hot stick regardless of the thickness of the hot stick.

The band through hole 121 has, for example, a length dimension (dimension in the length direction of the grip body 110; see reference numeral 301 in FIG. 3) of about 50 mm and a width dimension (see reference numeral 302 in FIG. 3) of about 2 to 3 mm. It opens with the opening diameter of, and penetrates along the width direction of the grip body 110.

The thickness dimension of the grip body 110 (see reference numeral 303 in FIG. 3) is preferably, for example, 10 mm to 20 mm. The band through hole 121 may be curved inside the grip body 110 in the same manner as the concave portion 111 is curved. The band through hole 121 may penetrate the inside of the grip body 110 in a straight line.

The lever member 130 is connected to the grip body 110. The lever member 130 is provided on the grip body 110 on the side opposite to the one side (the other side) where the recess 111 is provided. The lever member 130 has a rod shape or a long shape. The lever member 130 is on the other surface side of the grip body 110, and swings around the axis of the support shaft 131 with the support shaft 131 as a fulcrum via a support shaft 131 provided on one end side in the length direction. It is movably connected.

The lever member 130 swings around the axis of the support shaft 131 with the support shaft 131 as a fulcrum, so that the end portion on the side opposite to the support shaft 131 side in the length direction (hereinafter, appropriately referred to as "lever member 130". The tip portion "is moved between a first position close to the grip body 110 and a second position where the tip portion separates from the grip body 110. The lever member 130 is urged in a direction of moving from the first position to the second position by an urging member (not shown).

Specifically, the urging member can be realized by, for example, a compression coil spring provided between the grip body 110 and the lever member 130. Alternatively, specifically, the urging member may be realized by an elastic material such as rubber instead of the compression coil spring. Alternatively, the urging member is realized by, for example, a torsion coil spring provided so as to wind the support shaft 131, one end of which abuts on the grip body 110, and the other end of which abuts on the lever member 130. You may.

As a result, the lever member 130 is urged by the urging force of the urging member and positioned at the second position when no external force is applied to the lever member 130. Further, when an urging force is applied to urge the tip of the lever member 130 to approach the grip body 110, the lever member 130 swings against the urging force of the urging member, and the second lever member 130 swings. Move from position to first position.

The amount of movement of the tip when the lever member 130 moves between the first position and the second position, that is, the stroke of the lever member 130, is the state in which a general adult has his / her fingers extended. The length is adjusted to be about the same as the length from the vicinity of the tip of the finger (first joint) to the vicinity of the base of the finger (third joint) when the hand is clasped.

The interlock mechanism 140 is configured to include an interlock switch 141 and a lock mechanism, and limits the swing of the lever member 130 by operating the lock mechanism in response to an operation on the interlock switch 141. The interlock switch 141 is provided on the lever member 130.

The interlock switch 141 is preferably provided on the support shaft 131 side of the lever member 130. As a result, it is possible to prevent the operator from inadvertently touching the interlock switch 141 when working with the hydraulic control device 100. As a result, it is possible to prevent the lever member 130 from inadvertently swinging, and it is possible to ensure the safety of the work.

The interlock switch 141 is provided on the surface of the lever member 130 opposite to the grip body 110. The interlock switch 141 can be realized by, for example, a tactile switch that energizes only while it is being operated (while the movable contact and the fixed contact are in contact with each other).

Specifically, the tactile switch is composed of, for example, a mounting base, a movable contact, a film, a push plate, a covering plate, a fixed contact, and the like. The tactile switch reverses the movable contact by pushing the movable contact toward the mounting base with a push plate pushed in the direction approaching the movable contact by being operated by the operator, and contacts the movable contact and the fixed contact. The electric circuit is constructed by making the electric circuit. Further, when the operator stops the operation by releasing the tactile switch, the tactile switch reverses the movable contact to the original shape and separates the movable contact from the fixed contact to open the electric circuit.

Further, the interlock switch 141 can be realized by various known switches such as a micro switch, a push button switch, a rocker switch, a toggle switch, and a slide switch instead of the tactile switch. The interlock switch 141 may be a switch that repeatedly connects and disconnects an electric circuit each time it is operated, or may be a switch that connects an electric circuit only while it is being operated, such as a tactile switch. ..

The lock mechanism includes a lock pin (not shown) that regulates the swing of the lever member 130 with the support shaft 131 as a fulcrum. The lock pin is displaceably provided at a position that interferes with the swing range of the lever member 130 and a position that allows the lever member 130 to swing. Specifically, the lock pin can be realized by a solenoid. The lock mechanism moves the lock pin to a position that allows the lever member 130 to swing for a predetermined time while the interlock switch 141 is operated or after the interlock switch 141 is operated. By moving the lock pin to a position that allows the lever member 130 to swing, the lever member 130 with the support shaft 131 as a fulcrum is allowed to swing.

A contact mechanism (not shown) is provided between the grip body 110 and the lever member 130. The contact mechanism includes a fixed contact provided on the grip body 110 and a movable contact provided on the lever member 130. The contact mechanism can be realized, for example, by a so-called a-contact that constitutes an electric circuit that closes when the lever member 130 is positioned at the first position.

Specifically, the fixed contact and the movable contact in the contact mechanism are in contact with each other in a state where the lever member 130 is positioned at the first position and are electrically connected to each other. Further, the fixed contact and the movable contact in the contact mechanism are separated from each other in a state where the lever member 130 is positioned at a position other than the first position including the second position.

A switch circuit (not shown) that includes a contact mechanism and is opened and closed by the contact mechanism is provided in the grip body 110. The switch circuit outputs a control signal when the circuit is closed by the contact mechanism. The control signal is realized by an electric signal instructing the drive of the booster by the control device. The switch circuit continuously outputs a control signal while the contact mechanism is closed.

Alternatively, the switch circuit outputs a control signal instructing the drive of the booster by the control device when the contact mechanism is switched from the open state to the closed state, and the contact mechanism is changed from the closed state to the open state. When the switch is made, a control signal instructing the control device to stop driving the booster may be output.

The switch circuit includes terminals (not shown). The terminal is electrically connected to a fixed contact in the contact mechanism and is provided inside the grip body 110. Inside the grip body 110, the other end of the signal cable 112 having the connector 112a at one end is connected to the terminal.

The signal cable 112 is pulled out from the tip of the grip body 110 to the outside of the grip body 110, and the connector 112a is positioned outside the grip body 110. The connector can be realized by a straight plug or the like that can be detachably connected to the connector provided in the control device. Specifically, the connector can be detachably connected to the connector provided in the control device by a method such as a one-touch type or a bayonet type.

(Example of using hydraulic control device 100)
Next, an example of using the hydraulic control device 100 according to the embodiment of the present invention will be described. 5 and 7 are explanatory views showing an example of use of the hydraulic control device 100 according to the embodiment of the present invention.

FIG. 5 shows a state in which the hydraulic control device 100 and the hydraulic tip tool of the embodiment according to the present invention are attached to a hot stick. FIG. 6 shows an example of work using the hydraulic control device 100 and the hot stick to which the hydraulic tip tool is attached according to the embodiment of the present invention. FIG. 7 shows an example of a gripping mode of the hydraulic control device 100 according to the embodiment of the present invention.

As shown in FIGS. 5 to 7, the hydraulic control device 100 according to the embodiment of the present invention is used by being attached to the hot stick 500. The hot stick 500 includes an elongated rod-shaped member 501. The rod-shaped member 501 includes a plurality of collars 502 provided at intermediate positions in the length direction. One end side of the rod-shaped member 501 is anti-slip processed and is gripped by an operator during the connection work.

A connecting portion 503 is provided at the other end of the rod-shaped member 501. Since the connecting portion 503 can be easily realized by various known connecting metal fittings for connecting the tip tool to the tip of the hot stick 500, the description thereof will be omitted. The connecting portion 503 is connected to the hydraulic tip tool 510. The hydraulic tip tool 510 can be realized by, for example, an electric wire compressor used for compressing an electric wire or a sleeve, an electric wire cutter used for cutting an electric wire, or the like. The description of the electric wire compressor and the electric wire cutter will be omitted because they can be easily realized by using known techniques. 5 and 6 show an electric wire compressor among the hydraulic tip tools 510.

The hydraulic tip tool 510 realized by the electric wire compressor includes a pair of dies 511, a support mechanism 512 that supports the dies 511 in a connectable manner, and the like. Further, the hydraulic tip tool 510 includes a connecting mechanism 513 that connects to the connecting portion 503 of the hot stick 500, and a connecting portion 514 to which one end of the hydraulic cable 520 is connected. A hydraulic connector 520a is provided at the other end of the hydraulic cable 520.

The indirect live-line work is performed by two or more people, for example, the work performed by the worker P1 by operating the hot stick 500 is assisted by another worker P2 using another hot stick 610. Since the maximum number of passengers in the bucket 601 of the aerial work platform 600 is two, the indirect live-line work using the aerial work platform 600 is performed by two workers P1 and P2.

In the case of an indirect live-line operating rod using the hydraulic tip tool 510, the worker P1 (or the worker P2) connects the connecting mechanism 513 of the hydraulic tip tool 510 to the connecting portion 503 of the hot stick 500. Further, one end of the hydraulic cable 520 is connected to the connection portion 514 of the hydraulic tip tool 510. The other end of the hydraulic cable 520 is connected to the hydraulic connector (not shown) in the control device 602 provided in the bucket 601 of the aerial work platform 600 via the hydraulic connector 520a.

In addition to the hydraulic connector, the control device 602 includes a connector to which the signal cable 112 is detachably connected and various operation switches (all of which are not shown). The various operation switches include, for example, snap switches that are operated when releasing the hydraulic pressure applied to the hydraulic tip tool 510. Further, the control device 602 includes an interface that outputs a drive control signal to the booster in response to the operation of the operation switch, a CPU that controls the output of the drive control signal by the interface, and the like.

Further, in the case of an indirect live-line operating rod using the hydraulic tip tool 510, the worker P1 (or the worker P2) attaches the hydraulic control device 100 to the hot stick 500. Specifically, the recess 111 of the grip body 110 having a long flat plate shape is fixed to the hot stick 500 by the fixing member 120 in a state of being fitted so as to be pressed against the outer peripheral surface of the hot stick 500. Since the fixing member 120 is realized by a hook-and-loop fastener, the worker P1 can easily and surely attach the hydraulic control device 100 to the hot stick 500 even when wearing work gloves.

Next, the hydraulic tip tool 510 and the hot stick 500 to which the hydraulic control device 100 is attached are operated to position the hydraulic tip tool 510 at the work target location. Specifically, for example, the hot stick 500 is operated so as to position the electric wire to be compressed between the dies 511. Then, with the hydraulic tip tool 510 positioned at the work target location, the lever member 130 is swung to be positioned from the second position to the first position.

As shown in FIG. 7, the stroke of the lever member 130 is adjusted so as to be approximately the same as the length up to the vicinity of the base (third joint) of the finger when the hand is clasped. Therefore, the worker P1 can reliably position the lever member 130 in the hand of the worker P1. As a result, the hydraulic control device 100 can be operated stably.

Specifically, the worker P1 has four fingers excluding the first finger (thumb) 701 in a state where the hot stick 500 is positioned between the first finger (thumb) 701 and the second finger (index finger) 702. (Second finger (index finger) 702, third finger (middle finger) 703, fourth finger (medicine finger) 704, fifth finger (small finger) 705) can be hung on the lever member 130. As a result, the lever member 130 can be swung by bending four fingers other than the first finger (thumb) 701.

The posture (state) of the lever member 130 can be grasped from the degree of bending of the fingers. Specifically, for example, when all four fingers except the first finger (thumb) 701 are bent and the hot stick 500 is gripped together with the lever member 130 and the grip body 110, the lever member 130 becomes the third. It can be determined that the position is 1.

Further, when the second finger (index finger) 702 and the third finger (middle finger) 703 begin to bend and no force is applied to the fifth finger (pinkie) 705, the lever member 130 is positioned at a position other than the first position. It can be judged that it is positioned. In this way, by using the hydraulic control device 100, the operator P1 can swing the lever member 130 and operate the switch without visually recognizing the hand.

When the lever member 130 is positioned at the first position, the fixed contact and the movable contact in the contact mechanism come into contact with each other, and the switch circuit is closed. When the switch circuit is closed, it outputs a control signal from the terminal. The control signal output from the terminal is input to the control device 602 via the signal cable 112.

When the control device 602 receives the input of the control signal output from the hydraulic control device 100, the control device 602 outputs the drive control signal to the booster. As a result, the booster operates to further raise the hydraulic pressure supplied from the hydraulic pump to a predetermined pressure, and supply the hydraulic pressure raised to a predetermined pressure to the hydraulic tip tool 510. As a result, the dies 511 operate in the direction of approaching each other, and the electric wires positioned between the dies 511 are compressed.

When the worker P1 releases his hand from the lever member 130, the lever member 130 swings from the first position to the second position due to the urging force of the urging member. The worker P1 swings the lever member 130 from the first position to the second position, that is, simply releases the gripping hand from the lever member 130 to stop the hydraulic pressure applied to the hydraulic tip tool 510. The hydraulic pressure applied to the hydraulic tip tool 510 can be easily and quickly stopped without performing a separate operation for performing the operation.

As a result, for example, when the compression position of the hydraulic tip tool 510 suddenly shifts due to a strong wind, the hydraulic pressure applied to the hydraulic tip tool 510 can be stopped easily and quickly by flexibly responding to sudden changes in the situation. can do. As a result, it is possible to eliminate problems such as restarting the work from the beginning and wastefully discarding the compression sleeve.

When releasing the hydraulic pressure applied to the hydraulic tip tool 510, a snap switch provided in the control device 602 is operated. As described above, by using the hydraulic control device 100, the hydraulic pressure applied to the hydraulic tip tool 510 can be easily and quickly stopped by the operation at the operator's hand, so that a sudden change in the situation can be achieved. Even when the problem occurs, the operator can operate the snap switch in a calm state. As a result, it is possible to improve the certainty and safety in the work.

In the above-described embodiment, the case where the work using the hydraulic control device 100 is performed by two workers P1 and P2 has been described, but the work using the hydraulic control device 100 is performed by one worker. It can also be done by. According to the hydraulic control device 100 of the embodiment according to the present invention, even one worker can secure high versatility and good operability by using the existing hot stick 500, and the hydraulic control device. It is possible to improve the safety of the operator involved in the indirect live-line work using the 100 and reduce the burden on the operator involved in the indirect live-line work using the hydraulic control device 100.

As described above, the hydraulic control device 100 of the embodiment according to the present invention has a long flat plate shape, and has a grip body 110 having a recess 111 that is continuous along the longitudinal direction and has both ends open, and a rod. A first position that has a shape and is connected to the side opposite to the recess 111 in the grip body 110, and is separated from the grip body 110 from the first position close to the grip body 110 with the connection position with the grip body 110 as a fulcrum. It is provided with a lever member 130 that can swing between the two positions and a terminal that interlocks with the swing of the lever member 130 and outputs a control signal when the lever member 130 is positioned at the first position. It is characterized by including a switch circuit and a fixing member 120 for fixing the grip body 110 to the rod-shaped member 501.

According to the hydraulic control device 100 of the embodiment according to the present invention, the recess 111 of the grip body 110 having a long flat plate shape is fixed in a state of being fitted so as to be pressed against the outer peripheral surface of the hot stick 500. By fixing to the hot stick 500 by the member 120, the hydraulic control device 100 can be integrated with the existing hot stick 500 without causing the grip body 110 to protrude significantly from the outer peripheral surface of the hot stick 500.

As a result, the existing hot stick 500 can be used, so that high versatility can be ensured, and the lever member 130 can be stably swung while the hot stick 500 is securely gripped. Good operability can be ensured.

Further, according to the hydraulic control device 100 of the embodiment according to the present invention, since the lever member 130 has a rod shape that swings with the connection position with the grip body 110 as a fulcrum, hydraulic pressure is obtained by operating a conventional button switch. Compared with the case of operating the type tip tool 510, the operator P1 easily and surely grasps the position and posture (state) of the lever member 130 while holding the hot stick 500 without visually recognizing the hand. can do.

Specifically, in the indirect live wire work using the hydraulic control device 100, the worker P1 positions the hot stick 500 between the first finger (thumb) 701 and the second finger (index finger) 702, and the first finger (index finger) 702. Four fingers (second finger (index finger) 702, third finger (middle finger) 703, fourth finger (medicine finger) 704, fifth finger (small finger) 705) excluding one finger (thumb) 701 are hung on the lever member 130. By operating, the posture (state) of the lever member 130 can be easily and surely grasped from the bending condition of each finger without visually recognizing the hand. This makes it possible to perform a delicate operation of the lever member 130.

Further, according to the hydraulic control device 100 of the embodiment according to the present invention, the lever member 130 is operated by the operation of "grasping" by the four fingers 702 to the fifth finger 705 and the first finger 701. Therefore, the position and posture (state) of the lever member 130 can be easily and surely grasped even when the insulating protective gloves are worn.

Further, according to the hydraulic control device 100 of the embodiment according to the present invention, the lever member 130 is positioned at the first position, that is, the worker P1 is grasping the hot stick 500 together with the lever member 130. The control signal from the switch can be output only in the state. As a result, the operator P1 can easily and surely operate the hydraulic tip tool 510 by the sense of the hand without visually recognizing the hand. This makes it possible to reliably prevent erroneous operation of the hydraulic tip tool 510.

As described above, according to the hydraulic control device 100 of the embodiment according to the present invention, in the indirect live-line work using the hydraulic control device 100, the worker P1 uses the existing hot stick 500 to perform the work target location. The hydraulic tip tool 510 can be easily and reliably operated without taking your eyes off. As a result, high versatility and good operability are ensured by using the existing hot stick 500, and the safety of the operator P1 involved in indirect live-line work using the hydraulic control device 100 is improved, and hydraulic control is performed. It is possible to reduce the burden on the worker P1 involved in the indirect live-line work using the device 100.

Further, the hydraulic control device 100 according to the embodiment of the present invention is characterized by including an urging member that urges the lever member 130 in a direction of swinging from a first position to a second position. ..

According to the hydraulic pressure control device 100 of the embodiment according to the present invention, the operator P1 separately performs an operation for releasing the hydraulic pressure applied to the hydraulic tip tool 510 simply by releasing the hand from the lever member 130. Without this, the hydraulic pressure applied to the hydraulic tip tool 510 can be easily and quickly released. Specifically, for example, when an object other than the object to be compressed is caught between the dies 511, or when it is desired to redo the compression, the hydraulic tip tool 510 can be used by simply releasing the lever member 130. The applied hydraulic pressure can be released easily and quickly. As a result, the safety of the worker P1 (and the worker P2) involved in the indirect live-line work using the hydraulic control device 100 can be further improved.

Further, the hydraulic control device 100 of the embodiment according to the present invention is characterized in that the grip main body 110 is provided with anti-slip processing on the wall surface of the recess 111.

According to the hydraulic control device 100 of the embodiment according to the present invention, the hydraulic control device 100 can be reliably fixed to the hot stick 500 by preventing the grip body 110 from being displaced with respect to the outer peripheral surface of the hot stick 500. As a result, the operator P1 can stably and surely operate the lever member 130.

Further, in the hydraulic control device 100 of the embodiment according to the present invention, the tip of the lever member 130 is the tip of the finger (first) in a state where the amount of movement of the tip on the side opposite to the fulcrum is the extension of the adult finger. The angle formed by the length direction of the lever member 130 with respect to the length direction of the grip body 110 and the lever member 130 so as to be equal to the length from the vicinity of the joint) position to the vicinity of the base of the finger. The feature is that the length from the fulcrum is adjusted.

According to the hydraulic control device 100 of the embodiment according to the present invention, the lever member 130 can be reliably positioned in the hand of the operator P1. As a result, the operator P1 can easily and surely grasp the posture (state) of the lever member 130.

As described above, the hydraulic control device according to the present invention is useful for a hydraulic control device that controls the operation of a hydraulic tool operated by hydraulic pressure, and particularly controls the operation of a hydraulic tip tool used for indirect live wire work. Suitable for hydraulic control devices.

100 Hydraulic control device 110 Grip body 111 Recessed 112 Signal cable 112a Connector 120 Fixing member 121 Band through hole 122 Band-shaped member 130 Lever member 131 Support shaft 140 Interlock mechanism 141 Interlock switch 500 Hot stick 510 Hydraulic tip tool 520 Hydraulic cable 520a Hydraulic connector 600 Aerial work platform 601 Bucket 602 Control device

Claims (4)

A grip body that has a long flat plate shape and has recesses that are continuous along the longitudinal direction and open at both ends.
A second position that has a rod shape, is connected to the side opposite to the recess in the grip body, and is separated from the grip body from the first position close to the grip body and the connection position with the grip body as a fulcrum. A lever member that can swing between positions and
A switch circuit provided with a terminal that is interlocked with the swing of the lever member and outputs a control signal when the lever member is positioned at the first position.
A fixing member that fixes the grip body to the rod-shaped member,
A hydraulic control device characterized by being equipped with. The hydraulic control device according to claim 1, further comprising an urging member that urges the lever member in a direction of swinging from the first position to the second position. The hydraulic control device according to claim 1 or 2, wherein the grip body is provided with anti-slip processing on the wall surface of the recess. The amount of movement of the tip of the lever member on the side opposite to the fulcrum is the length from the vicinity of the tip (first joint) position of the finger in the extended state of the adult finger to the vicinity of the base of the finger. A claim characterized in that the angle formed by the length direction of the lever member with respect to the length direction of the grip body and the length of the lever member from the fulcrum are adjusted so as to be equivalent. Item 4. The hydraulic control device according to any one of Items 1 to 3.

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