JP5663343B2 - Remote insulation rotary operation tool - Google Patents

Description

  The present invention mainly uses a remote insulated rotation for attaching and detaching various materials and equipments by performing an insulated indirect hot wire method such as hot puller construction and lead connection construction for high-voltage lines and special high-voltage lines. It relates to an operation tool.

  As a remote insulated rotary operation tool that can be used for such work, for example, the following Patent Document 1 is already known. This is equipped with an insulation structure and a remote insulation operation rod fitted with a safety margin for insulation from the rain drain and work object. A rotary shaft is built into the remote insulation operation rod, and an operation handle is connected to the remote insulation operation rod so that the rotation shaft can be driven forward or reverse via a bevel gear mechanism, and the rotation at this time is remotely insulated. A rotating tool such as a bit, socket, or wrench at the tip of the operating rod is fitted to a bolt or nut so that it can be fastened or unfastened. An electric ratchet mechanism as disclosed in Patent Document 2 below may be used to drive these rotary tools.

  On the other hand, Patent Document 3 below discloses an operation rod for attaching a winding prevention tool in a utility pole branch line in which an electric ratchet is connected to a nut runner at the tip.

JP 2004-58196 A JP-A-7-88778 JP-A-6-10538

  Such a remote insulated rotary operation tool has been useful for many years to carry out the insulated indirect hot wire method for high voltage lines and special high voltage lines with electrical safety from low places. However, in recent years, power tools have become widespread, and at work sites, electric drills are connected instead of operation handles, and speedy fastening work and fastening work are performed using low-speed to high-speed rotation. .

  However, the electric drill is a gun type and receives a rotational reaction force from the grip extending laterally from the rotation axis, and grips the grip at the end of fastening or at the start of fastening release at which the reaction force becomes maximum. There is a danger such as shaking your hand strongly, which hinders work.

  In addition, the combined use of a remote insulated rotary operation rod, which is an independent tool, and an electric drill requires extra handling of the electric drill, and it is not convenient to install and remove the remote insulated rotary operation rod instead of the operation handle. And cause an inadvertent fall. In addition, storage and removal are required separately from the remote-insulated rotary operation rod because the electric drill is an independent tool, and it takes time to handle it.

  The operation bar disclosed in Patent Document 3 cannot be applied to insulation work and more remote work, and of course, when used with a rechargeable power supply, it cannot respond to manual power-off in the field. In addition, the construction method for high-voltage lines and special high-voltage lines does not have a configuration that can work reliably and safely when high torque is required for fastening and fastening release.

  In view of the above-mentioned problems, the present invention incorporates a dedicated electric drive source and is based on electric drive, and is capable of fastening and releasing with primary switching to manual drive when charging or power is turned off. The main purpose is to provide a remote-insulated rotary operation tool that is convenient for work and handling, and is suitable for fastening and unfastening with high torque.

In order to solve the above-mentioned problems, the remote insulated rotary operating tool of the present invention has an electric drill (3) in the axial direction at the proximal end of the rotary shaft (2) built in the remote insulated operating rod (1). A rotary tool that provides a drill connection part (2a) to be connected and a handle connection part (2b) to connect the operation handle (5) in a direction perpendicular to the axis, and is fastened and released from the tip side of the rotary shaft (2). (6), a variable speed electric drill (3) that can rotate forward and reverse, and a secondary battery (9) that supplies power to the electric drill (3) fixing structure (27, 28), and a secondary battery a charging structure without accompanied Tsu or out the loading and unloading of the secondary battery from the battery compartment which houses the (9) (9) (16, 17, 18), said fixing structure (27, 28) and the charging Insulation structure (1, 13, 17, 73) from the outer periphery of the structure (16, 17, 18 ) And is incorporated in the proximal side of the remote insulation operating rod (1) with a connection that allows the rotating shaft (2) to rotate together with the drill connecting portion (2a).

  In addition, the insulation structure (53, 13) between the distal end side and the proximal side where the rotary tool (6) of the remote insulation operation rod (1) protrudes, and the remote insulation operation rod (1) communicate from the outside to the inside. A waterproof structure (54, 71 to 74, 77) for preventing rainwater from entering from the outside is provided at the boundary of the contact surface, and is attached so as to be detachable from the handle connection portion (2b). The electric drill (3) is capable of performing a shifting operation including on and off from the outside of the remote side of the remote insulating operation rod (1).

  In such a configuration, the electric drill (3) is equipped exclusively for insulation and fixing on the proximal side of the remote insulation operating rod (1) incorporating the rotary shaft (2), and the weight ratio on the proximal side is increased. The rotary shaft (2) is electrically driven by the power supply from the secondary battery (9) to drive the variable speed in the forward and reverse directions without play, and the rotation of the rotary shaft (2) is connected to its tip. Since the transmission is transmitted to the rotary tool (6), the remote insulation operation rod (1) can be used to remotely perform the fastening operation and the fastening release operation with bolts and nuts while ensuring insulation on both the work and the electric drill (3). .

  Also, if the battery runs out during the operation, the rotating handle (2) is manually operated by connecting the operating handle (5) to the handle connecting portion (2b) which can be handled in combination with the remote insulation operating rod (1) as usual. Then, the rotary tool (6) is driven in the forward direction and the reverse direction, and the fastening and unfastening operations can be continued in place of the electric drill (3). The secondary battery (9) can be recharged and recovered through the charging structure (16, 17, 18) after the work is completed, without interrupting the work or by being removed and without timing restrictions. Furthermore, the rainwater intrusion from the outside can be prevented by the waterproof structure (54, 71 to 74, 77) at the contact surface boundary portion that leads from the outside to the inside of the remote insulation operating rod (1).

In the above, further, the remote insulation operating rod (1) includes the electric drill (3) and the secondary battery (9) on the hand side, the fixing structure (27, 28) of the electric drill (3), and the secondary battery. The charging structure (16, 17, 18) to (9) and the insulating structure (13, 17, 73) from the outer periphery of the fixing structure (27, 28) and the charging structure (16, 17, 18) a cover (13) built in, the cover (13), rotating tool (8) drill connections (2a) rotated together can connect structures to (32) accompanied the Hare remote insulated operating rods (1) And an electric drill unit (14) having a connection structure (56, 57) that has a detent structure (31) and a fixing structure (27, 28) so that it can be attached and detached. can do.

  In such a configuration, in addition to the above, the electric drill unit (14) further connects the electric drill (3) and the secondary battery (9) to the electric drill (3) and to the secondary battery (9). Charging and insulation from the outer periphery of the remote insulation operation rod (1) by itself, and the non-rotation and insulation on the opposite side of the remote insulation operation rod (1) The rotary shaft (2) is electrically driven without play in the forward and reverse directions, and the rotation of the rotary shaft (2) is transmitted to the rotary tool (6) connected to the tip of the rotary shaft (2). Thus, the remote insulation operation rod (1) can be used to remotely perform the fastening operation and the fastening release operation using bolts and nuts without impairing the insulation on both the work and the electric drill (3).

  In addition, by removing the connection of the electric drill unit (14) with the remote side of the remote insulation operating rod (1), when the manual operation is performed by connecting the operation handle (5) due to battery exhaustion, 14) can be avoided from being a rotational load, and the charging operation can be performed independently in parallel with the manual operation.

In the above, further, between the electric drill (3) and the direction change rotation transmission mechanism (4) including the drill connection part (2a) and the handle connection part (2b) , the direction change rotation transmission mechanism (4) to the rotary tool ( torque limit mechanism (25) provided on one of the rotation transmission system between up to 6), the torque limit mechanism (25) can be provided with e Bei torque adjusting means for adjusting the torque (26).

  In such a configuration, in addition to the above, when the fastening torque exceeds a predetermined value, the torque limit mechanism (25) cancels the torque transmission, so that it is possible to avoid fastening with an excessive torque value. Can be adjusted by the torque adjusting means (26).

  Further, a torque limit mechanism (25) is provided between the electric drill (3) and the direction change rotation transmission mechanism (4) or between the direction change rotation transmission mechanism (4) and the rotary tool (6). When it is in the immediate vicinity of the direction change rotation transmission mechanism (4) of the rotation transmission system, it is easy to adjust the torque by the torque adjusting means (26) which is close to the hand side of the remote insulation operating rod (1) and can be operated on the hand side. . When the torque limit mechanism (25) is in the immediate vicinity of the rotary tool (6), the rotary tool (6) is not affected by the torque cross generated in the long rotation transmission system between the electric drill (3) and the rotary tool (6). The torque limit function is demonstrated in response to the actual fastening torque.

  Also, if the torque limit mechanism (25) is in the rotation transmission system between the electric drill (3) and the direction change rotation transmission mechanism (4), it will not function during manual operation, but the direction change rotation transmission mechanism (4). If it is in the rotation transmission system from to the rotary tool (6), it functions both during electric drive and during manual operation.

  Further objects and features of the present invention will become apparent from the following detailed description and drawings. Each feature of the present invention can be employed alone or in combination as much as possible.

  According to the remote insulated rotary operating tool (100) of the present invention, the rod-shaped dedicated electric drill (3) adapted to the remote insulated operating rod (1) is equipped without being bulky and serves as a weighting element on the hand side. The operability from the hand side of the rotary tool (6) at the tip is improved by the long remote insulation operating rod (1), and the rotary tool (6) is moved via the rotary shaft (2) by the electric drill (3). It can be electrically driven at a variable speed under forward / reverse switching, and the fastening and fastening work can be easily and speedily achieved without impairing the insulation between the work object and work environment and the hand side.

  In addition, when the battery runs out during the operation, the operation handle (5) provided in combination as before is connected and the rotary shaft (2) is manually operated. You can continue. The secondary battery (9) is appropriately charged and recovered. Further, rain water can be prevented from entering from the outside at the contact surface boundary portion that leads from the outside to the inside of the remote insulation operating rod (1), and short circuit accidents of the electric drill (3) and the secondary battery (9) can be prevented.

  In addition to the above, when the electric drill (3) and the secondary battery (9) are made into an electric drill unit (14) and connected to the proximal side of the remote insulation operating rod (1), the detachable proximal side, By removing from the side, it is possible to prevent the electric drill (3) from becoming a rotational load when the operation handle (5) is connected to perform manual work, and the charging work can be performed independently in parallel with the manual work.

  Moreover, the remote drilling operation rod (1) of the electric drill unit (14) is connected to the non-hand side by fixing and insulating, so that the rotary shaft (2) can be electrically insulated without play. It is possible to drive without any loss, and to perform the fastening operation and the fastening release operation with reliability and electrical safety.

  In addition to the above, when a torque limit mechanism (25) is provided, when the fastening torque exceeds a predetermined value, the torque transmission is canceled to avoid the fastening with an excessive torque value, and the fastening target and the rotation transmission system Can be prevented from being damaged. Further, by adjusting the predetermined value by the torque adjusting means (26), it is possible to perform an operation of fastening and fastening release without excess or deficiency by setting the torque according to the work target.

  Further, depending on the installation position of the torque limit mechanism (25), it is possible to select whether or not torque adjustment by the torque adjusting means (26) that can be operated on the hand side is facilitated. Further, it is possible to select whether or not to exert the torque limit function in response to the actual fastening torque by the rotary tool (6) without the influence of the torque cross generated in the long rotation transmission system. In addition, it can be selected whether it does not function during manual operation or functions during both electric drive and manual operation.

It is a top view which shows the remote insulation rotation operating tool which concerns on embodiment of this invention. It is sectional drawing which shows the principal part of the remote insulated rotation operating tool.

  One specific example of the remote insulated rotary operation tool according to the embodiment of the present invention will be described with reference to FIG. 1 and FIG. 2 for the understanding of the present invention. The following description is a specific example of the present invention and does not limit the matters described in the claims.

  A remote insulated rotary operating tool 100 according to the present embodiment schematically shown in FIG. 1 has a rotary shaft 2 built in a remote insulated operating rod 1. A drill connection portion 2a for connecting the electric drill 3 in the axial direction and a handle connection portion 2b for connecting the operation handle 5 in the direction perpendicular to the axis are provided at the proximal end of the rotary shaft 2. A rotary tool 6 is connected to the distal end side of the rotary shaft 2 for fastening and unfastening the outer end of the remote insulation operating rod 1. A variable-speed electric drill 3 capable of rotating in the forward and reverse directions and a secondary battery 9 that supplies power to the electric drill 3 are fixed to the electric drill 3 by fixing structures 27 and 28 and the secondary battery 9 from the battery chamber 16 that accommodates it. Connections that have charging structures 16, 17, 18 without or withdrawing / withdrawing, and insulation structures 1, 13, 17, 73 from the outer periphery of the charging structures 16, 17, 73 so that the rotating shaft 2 can rotate to the drill connection portion 2 a. Is included in the hand side of the remote insulation operating rod 1.

  At the same time, the insulating structures 53 and 13 between the distal end side and the proximal side where the rotary tool 6 of the remote insulation operation rod 1 protrudes, and the interface boundary between the remote insulation operation rod 1 and the outside from the outside to the inside An electric drill is provided with waterproof structures 54, 71 to 74, 77 for preventing rainwater from entering, and is provided so as to be attachable to and detachable from the handle connecting portion 2b, and to operate the rotating shaft 2 forward and reverse by manual operation. Reference numeral 3 indicates that a shift operation including on and off can be performed from the outside of the remote side of the remote insulating operation rod 1.

  In this way, the electric drill 3 is provided exclusively for insulation and fixing on the proximal side of the remote insulation operating rod 1 incorporating the rotary shaft 2 so that the weight ratio on the proximal side can be increased. Since the rotary shaft 2 is electrically driven in the forward and reverse directions at a variable speed without play and the rotation of the rotary shaft 2 is transmitted to the rotary tool 6 connected to the tip of the rotary shaft 2. Therefore, the fastening operation and the fastening release operation using bolts and nuts can be performed while ensuring insulation on both the work and the electric drill 3.

  If the battery runs out during the operation, the rotary handle 2 is manually operated by connecting the operating handle 5 that can be handled in combination with the remote insulation operating rod 1 to the handle connecting portion 2b. Driving in the opposite direction, fastening and fastening release work can be continued in place of the electric drill 3. The secondary battery 9 can be charged and recovered through the charging structures 16, 17, 18 without interrupting or removing the work after completion of the work and without timing limitation. In addition, the waterproof structures 54, 71 to 74, 77 can prevent rainwater from entering from the outside at the contact surface boundary portion that leads from the outside to the inside of the remote insulating operation rod 1.

  From the above, according to the remote insulated rotary operating tool 100 of the present embodiment, the rod-shaped dedicated electric drill 3 adapted to the remote insulated operating rod 1 is equipped without being bulky and serves as a weighting element on the hand side. Enhances maneuverability from the proximal side of the rotary tool 6 at the tip by the long remote insulation operating rod 1 and electrically drives the rotary tool 6 to variable speed through the rotary shaft 2 by the electric drill 3 while switching between forward and reverse. Thus, the fastening and fastening work can be easily and speedily achieved without impairing the insulation between the work object or work environment and the hand side.

  Further, when the battery runs out during the operation, the operation handle 5 provided in combination as before is connected and the rotary shaft 2 is manually operated, so that the operation of fastening and fastening release can be continued in place of the electric drill 3. The secondary battery 9 is appropriately charged and recovered. Further, rain water can be prevented from entering from the outside at the contact surface boundary portion that leads from the outside to the inside of the remote insulating operation rod 1, and short circuit accidents of the electric drill 3 and the secondary battery 9 can be prevented.

  Here, in the case of the illustrated example, the remote insulation operating rod 1 has an insulating structure in which the proximal side region equipped with the drill connection portion 2a and the handle connection portion 2b between the distal end portion and the proximal end portion is provided with a metal relay cylinder 11. The grip region 12 between the relay cylinder 11 and the proximal end is insulated from the distal end side, and the grip region 12, the electric drill 3, and the secondary battery 9 are formed. Insulation between them is also planned. Insulation in operation of the operation handle 5 is realized by forming a portion gripped by a hand such as the grip 5a with an insulating material.

  Further, the fixing structures 27 and 28 may be screwed, but around the outer peripheral surface of the body 3a of the electric drill 3, a convex part 3b or a flat part such as an operating means equipment part or a wiring equipment part as shown in FIG. This is realized by having a non-circular fitting portion 27 formed in a remote insulating operation rod 1 by forming a non-circular portion such as a square and an axial locking portion 28 by an adhesive sealant 73. The insulating structure may be performed by exposing the charging terminal sealed in an insulated state and connecting to a charging power source, but if the secondary battery 9 is taken out and charged, it is easy to charge, Can be replaced when it reaches the end of its life.

  As shown in FIG. 2, the remote insulation operating rod 1 includes the electric drill 3 and the secondary battery 9 on the hand side, the fixing structures 27 and 28 for the electric drill 3, and the charging structures 16 and 17 for the secondary battery 9. 18 and insulation structures 13, 17 and 73 from the outer periphery thereof are built in the cover 13, and this cover 13 is connected to the drill connecting portion 2a of the rotary tool 8 together with the connection structure 32 that can rotate together. An electric drill unit 14 having a non-circular fitting portion 31 as a detent structure and fixing structures 27 and 28 and having connection structures 56 and 57 on the opposite side of the insulating operation rod 1 so as to be detachable is provided. Can be. Note that the non-circular fitting portion 31 is also referred to as a detent structure.

  In this way, the electric drill unit 14 is used to fix the electric drill 3 and the secondary battery 9, to fix the electric drill 3, to charge the secondary battery 9, and to insulate them from the outer periphery. The remote insulation operation rod 1 is connected to the remote insulation operation rod 1 so that it can be attached to the remote insulation operation rod 1 so that it can be attached and detached. Since it is driven without play and the rotation of the rotary shaft 2 is transmitted to the rotary tool 6 connected to the tip of the rotary shaft 2, the remote insulation operation rod 1 can be used to remotely perform fastening work and fastening work using bolts and nuts on the work and electric drill 3 can be carried out without impairing insulation on both sides.

  Further, by removing the connection of the electric drill unit 14 with the remote side of the remote insulating operation rod 1, when the manual operation is performed by connecting the operation handle 5 due to running out of the battery, the electric drill unit 14 becomes a rotational load. Can be avoided, and the charging operation can be performed independently in parallel with the manual operation.

  The electric drill unit 14 is fixed to the mounting position using, for example, a fixing ring 56 that is mounted on the relay cylinder 11 so as to be positioned and rotated in the axial direction by a stepped portion and a snap ring 55 as shown in FIG. Can be done. Specifically, a sleeve 56a for receiving the tip of the cover 13 of the electric drill unit 14 that is non-circularly fitted to the relay cylinder 11 with the relay cylinder 11 is formed on the fixing ring 56. When receiving the front end of the cover 13, the locking projections 56 b that fit into the axial grooves 57 a of the L-shaped grooves 57 that are cut in the axial direction of the cover 13 and bent in the circumferential direction are radially inward. Provided.

  Thereby, after the front end portion of the cover 13 is received by the sleeve 56 a, the fixing ring 56 is rotated to the side of the engagement groove 57 b bent in the circumferential direction of the L-shaped groove 57, so that the locking projection 56 b becomes the cover 13. Is engaged with the engaging groove 57b while being pulled toward the connection side to prevent the electric drill unit 14 from being attached. In this fixing, when the fixing ring 56 is rotated to the opposite side, the locking projection 56b is detached from the engaging groove 57b and returned to the axial groove 57a, so that the electric drill unit 14 can be pulled out from the relay cylinder 11 and removed. . However, it is not limited to this.

  As described above, when the electric drill 3 and the secondary battery 9 are the electric drill unit 14 and are the detachable proximal side connected to the proximal side of the remote insulating operation rod 1, the operation handle 5 can be removed by detachment from the proximal side. Therefore, the electric drill 3 can be prevented from being subjected to a rotational load when the manual work is performed with the connection, and the charging work can be performed independently in parallel with the manual work.

  Further, the connection of the electric drill unit 14 to the remote side of the remote insulation operating rod 1 is made with a detent and insulation so that the rotary shaft 2 can be driven electrically without play and without impairing insulation. The fastening work and the fastening release work can be carried out reliably and with electrical safety.

  In order to attach and detach the secondary battery 9, in the illustrated example, the battery chamber 16 that accommodates the secondary battery 9 is insulated so that it can be attached and detached independently through a slot 18 that opens and closes with a lid 17. The inlet / outlet 18 can be provided on the side peripheral surface of the remote insulation operating rod 1, but is provided at the proximal end, specifically, at the tail end of the electric drill unit 14. Thereby, in the case of running out of the battery, the rechargeable battery 9 can be taken out and charged not only for the remote insulated rotary operating rod 1 but also for the electric drill unit 14 on the hand side, and the battery can be charged. If the lid 17 of the chamber 16 is closed, the insulation of the battery chamber 16 is not impaired due to the detachable structure of the secondary battery 9.

  The insulating structure here is realized by forming the lid 17 with an insulating material such as resin. The battery chamber 16 is partitioned from the drill chamber 19 in which the electric drill 3 is housed by a partition wall 21 to ensure independence from each other. The electric drill 3 and the secondary battery 9 are electrically connected to each other with the charging terminal 22 of the electric drill 3 passing through the partition wall 21 from the drill chamber 19 to the battery chamber 16 side, and the secondary of the battery chamber 16 side. The power supply terminal 23 of the battery 9 is contacted and connected. In this contact state, the secondary battery 9 is urged and held toward the charging terminal 22 by a coil spring 24 provided on the lid 17.

  Further, a torque limit mechanism 25 as shown in FIG. 2 is provided in the middle of the rotation transmission system from the electric drill 3 to the rotary tool 6, and this torque limit mechanism 25 is provided with a torque adjusting means 26 for adjusting the torque value. Yes. Thereby, when the fastening torque exceeds a predetermined value, the torque limit mechanism 25 cancels the transmission of the torque, so that the fastening with an excessive torque value can be avoided, and the predetermined value can be adjusted by the torque adjusting means 26. it can.

  Here, the torque limit mechanism 25 can be disposed in any of the rotation transmission system between the electric drill 3 and the direction conversion rotation transmission mechanism 4 and between the direction conversion rotation transmission mechanism 4 and the rotary tool 6. . The torque limit mechanism 25 is a rotation transmission system between the electric drill 3 and the direction conversion rotation transmission mechanism 4, or the direction of the rotation transmission system between the direction conversion rotation transmission mechanism 4 and the rotary tool 6 as shown in FIG. If it is in the immediate vicinity of the conversion rotation transmission mechanism 4, it is easy to adjust the torque by the torque adjusting means 26 that is close to the hand side of the remote insulation operating rod 1 and can be operated on the hand side. If the torque limit mechanism 25 is in the immediate vicinity of the rotary tool 6, the torque limit mechanism 25 responds to the actual fastening torque by the rotary tool 6 without being affected by the torque cross generated in the long rotation transmission system between the electric drill 3 and the rotary tool 6. Demonstrate torque limit function.

  Further, if the torque limit mechanism 25 is in a rotation transmission system between the electric drill 3 and the direction conversion rotation transmission mechanism 4, it does not function during manual operation, but the rotation from the direction conversion rotation transmission mechanism 4 as shown in FIG. If the rotation transmission system up to the tool 6 is present, it functions both during electric drive and during manual operation.

  As described above, when the torque limit mechanism 25 is equipped, if the fastening torque exceeds a predetermined value, the torque transmission is canceled and the fastening with an excessive torque value is avoided, and the fastening target and the rotation transmission system are damaged. Can be prevented. Further, by adjusting the predetermined value by the torque adjusting means 26, it is possible to perform fastening and releasing work without excess or deficiency with torque setting according to the work target.

  Further, depending on the installation position of the torque limit mechanism 25, it is possible to select whether or not torque adjustment by the torque adjustment means 26 that can be operated on the hand side is facilitated. Further, it is possible to select whether or not to exert the torque limit function in response to the actual fastening torque by the rotary tool 6 without the influence of the torque cross generated in the long rotation transmission system. In addition, it can be selected whether it does not function during manual operation or functions during both electric drive and manual operation.

  As the torque limit mechanism 25, various types already known can be adopted. Explaining about the illustrated example, as shown in FIG. 2, the relay cylinder 11 is equipped with the direction change rotation transmission mechanism 4. As a basic structure, the rotary shaft 2 includes a base-side rotary shaft 2c that is connected to the rotary tool 8 of the electric drill 3 so as to be integrally rotatable and detachable by a rectangular non-circular fitting portion 31, and the base-side rotary shaft 2c and a circular shape. It is comprised by the front end side rotating shaft 2d connected rotatably by the fitting part 42. FIG.

  The base side rotating shaft 2c has a passive bevel gear 33 on the outer periphery and is supported in the relay cylinder 11. The passive bevel gear 33 is rotatable to a handle connecting portion 2b provided on a part of the peripheral wall of the relay cylinder 11. The drive bevel gear 34 that is held is meshed with the operation handle 5 connected to the drive bevel gear 34 and rotated in the forward and reverse directions.

  The relay cylinder 11 includes a split relay cylinder 11a equipped with the direction change rotation transmission mechanism 4 and a split relay cylinder 11b equipped with the torque limit mechanism 25, which are connected to each other through a seal member 36 at a screw fitting portion 35. The direction change rotation transmission mechanism 4 side of the base side rotation shaft 2c is accommodated so as to be sandwiched in the split relay cylinder 11a.

  The rotation given to the base side rotating shaft 2c by the rotating tool 8 or the operation handle 5 of the electric drill 3 is rotated at the tip end within a torque range equal to or less than the set torque value via the torque limit mechanism 25 provided in the split relay cylinder 11b. It is transmitted to the shaft 2d.

  For this reason, the torque limit mechanism 25 includes a movable cam 38a that rotates together with the base-side rotating shaft 2c at the non-circular fitting portion 31 and can slide in the axial direction, and a fixed cam that is integral with the distal-side rotating shaft 2d. The movable cam 38a is urged by the coil spring 39 so that the cam surfaces 38b are opposed to each other on the side of the chevron-shaped cam surface and the cam surfaces are pressed and meshed with each other with a predetermined torque value.

  As a result, until the predetermined torque value is exceeded, the meshing between the cam surfaces is maintained by the biasing force of the coil spring 39, and the rotation applied to the base side rotating shaft 2c from the rotating tool 8 of the electric drill 3 is movable. Since it is transmitted to the distal end side rotary shaft 2d via the cam 38a and the fixed cam 38b, the work of fastening and fastening release by the rotary tool 6 can be performed. When the work load for fastening and fastening release exceeds a predetermined torque value, the movable cam 38a moves backward against the coil spring 39 and slides with respect to the fixed cam 38b, and the base side rotating shaft 2c is moved with respect to the distal end side rotating shaft 2d. To prevent the work from proceeding further.

  Therefore, the torque adjusting means 26 is rotatable between the spring seat 41 and the coil spring 39 by a snap ring on the torque adjusting means 26 side and the base side rotating shaft 2c by a circular fitting portion 42 in the axial direction. A rotating cam 43a that does not move and a chevron-shaped cam surface face each other, and a movable cam 43b that rotates together with a non-circular fitting portion 44 and slides in the axial direction is provided on the base-side rotating shaft 2c. The cam surfaces are engaged with each other so as to come into pressure-contact with each other by the urging of the coil spring 39, and the rotary cam 43 a is connected through an operation window 45 and an operation window 46 that is rotated from the outer periphery of the relay cylinder 11.

  Thereby, when the rotary cam 43a is rotated by the operation unit 45, the movable cam 43b is moved between the pressure contact position with the rotary cam 43a and the maximum push-off position against the coil spring 39 according to the rotation position. The spring receiving position of the coil spring 39 can be changed in the axial direction. This change in the spring receiving position results in a change in spring force that causes the coil spring 39 to press the movable cam 43a against the fixed cam 43b. As a result, the torque value causing the torque limit mechanism 25 to slip can be changed and adjusted. .

  For this purpose, although not shown, it is necessary to be able to stabilize or fix each adjusting position for rotating the rotating cam 43a. The adjustment position may be changed stepwise or continuously. Simply, if the cam surface inclined around the angle of the chevron is in contact with the flat surfaces around the axis at the location corresponding to the stepwise adjustment position so that rotational force does not occur, the stepwise It can be stabilized at the adjustment position. Instead of the cam system, the spring receiving position can be adjusted steplessly using the lead of the screw. In addition, in this case, the coil spring 39 is received without generating a rotational force, so that no special stabilization means and fixing means are required. However, it is not limited to these.

  The connection state of the base-side rotary shaft 2c and the tip-side rotary shaft 2d and the axial position in the remote insulation operation rod 1 are held by being sandwiched between snap rings 51 and 52 fitted to the inner periphery of the relay cylinder 11. It is like that. Further, the relay cylinder 11 and the distal end side cylinder 53 of the remote insulation operation rod 1 are connected by providing a connection portion 54 that serves both as a seal and an adhesive around the fitting portion.

  Further, an operation unit 61 that can be operated from the outside is provided on the proximal side of the remote insulating operation rod 1, specifically, near the tip of the cover 13 of the electric drill unit 14. As an example, the operation unit 61 is provided with a normal rotation drive operation unit 62 and a reverse rotation drive operation unit 63 of the electric drill 3 with a seal cover 64, and when the normal rotation drive operation unit 62 is pushed, the electric drill 3. Can be driven in the forward direction, and the electric drill 3 can be driven in the reverse direction by pushing the reverse drive operation unit 63. In both cases, the drive stop state can be restored when the pushing operation is released.

  At the same time, both the forward rotation driving operation unit 62 and the reverse rotation driving operation unit 63 are configured to increase the rotational speed of the electric drill 3 in proportion to the amount of pushing. For this purpose, it is preferable to use a piezoelectric conversion element in terms of space saving. The variable speed function is not limited to this, but the variable speed function has a high work resistance. The work speed can be increased as the speed drops.

  Therefore, the work speed is controlled by controlling the electric drill 3 in accordance with the work object having a high work resistance, or the work speed is controlled at a low speed in the initial stage of the work, or the work is started or started smoothly. It is possible to increase the work speed by raising it without difficulty. The speed change range is preferably set by limiting the maximum speed in terms of work and equipment safety from the speed 0 in the stopped state.

  Finally, a waterproof structure is provided around the electric drill 3 built-in area and the secondary battery 9 housing area. Thereby, the electric drill 3 and the secondary battery 9 are waterproofed by the surrounding waterproof structure, and the electrical safety of the equipment can be achieved. Specifically, the operation unit 61 and the cover 13 are waterproofed by the sealing property of the seal cover 64. At the proximal end of the cover 13, a sealing member 71 that works in the thrust direction and a sealing member 72 that works in the radial direction are provided on the lid 17 between the proximal end of the cover 13, so that waterproofing is achieved. . In addition, an adhesive sealant 73 is filled between the tip of the electric drill 3 and the cover 13 for waterproofing. Seal members 74 and 77 are also provided at the tip boundary portion where the rotary tool 6 of the remote insulation operation rod 1 protrudes and the boundary portion of the non-circular fitting portion 31, and the entire remote insulation operation rod 1 including the electric drill unit 14 is provided. Waterproofing of all borders leading from the outside to the inside is realized.

  The protruding portion of the rotary tool 6 at the tip of the remote insulating operation rod 1 is provided with a bearing portion 74 having a seal structure for waterproofing. Further, a rubber rain gutter 75 and a safety margin collar 76 for insulation from the work object are attached to the distal end side of the remote insulation operation rod 1 to ensure electrical safety.

  The present invention is a remote-insulated rotary operation tool that is mainly electrically driven to improve workability, and can be manually driven by an operation handle as required, and is convenient for fastening and fastening work and handling. It can be used to make it suitable for fastening and releasing with high torque.

DESCRIPTION OF SYMBOLS 1 Remote insulation operating rod 2 Rotating shaft 2a Drill connection part 2b Handle connection part 2c Base side rotating shaft 2d Tip side rotating shaft 3 Electric drill 3a Body 3b Convex part 4 Direction change rotation transmission mechanism 5 Operation handle 5a Grip 6 Rotating tool 7 Electric Motor 8 Rotating tool 9 Secondary battery 11 Relay cylinder 11a, 11b Divided relay cylinder 12 Grip area 13 Cover 14 Electric drill unit 15 Opposite side 16 Battery chamber 17 Lid 18 Entrance / exit 19 Drill chamber 21 Bulkhead 22 Charging terminal 23 Feeding terminal 24 Coil spring 25 Torque limit mechanism 26 Torque adjusting means 27 Anti-rotation fitting portion 28 Axial locking portion 31 Non-circular fitting portion 32 Connection structure 33 Passive bevel gear 34 Drive bevel gear 35 Screw fitting portion 36 Seal member 38a Movable cam 38b Fixed Cam 39 Coil spring 41 Spring seat 42 Circular fitting part 43a Rotation Cam 43b Movable cam 44 Non-circular fitting portion 45 Operation portion 46 Operation window 51 Snap ring 52 Snap ring 53 Front end side tube 54 Connection portion 55 Snap ring 56 Fixing ring 56a Sleeve 56b Locking projection 57 L-shaped groove 57a Axial groove 57b Engaging groove 61 Operation part 62 Forward drive operation part 63 Reverse drive operation part 64 Seal cover 56, 57 Connection structure 71, 72, 74, 77 Seal member 73 Adhesive sealant 75 Rain gutter 76 Safety limit collar 27, 28 Fixation Structure 1, 13, 17, 73 Insulation structure 53, 13 Insulation structure 16, 17, 18 Charging structure 54, 71, 72, 73, 74, 77 Waterproof structure 100 Remote insulation rotary operation tool

Claims (3)

A drill connecting portion (2a) for connecting the electric drill (3) in the axial direction to the proximal end of the rotary shaft (2) built in the remote insulation operating rod (1);
A handle connection portion (2b) for connecting the operation handle (5) in a direction perpendicular to the axis,
A rotary tool (6) for fastening and unfastening is provided on the tip side of the rotary shaft (2),
A variable speed electric drill (3) that can rotate forward and reverse and a secondary battery (9) that supplies power to the electric drill (3) are fixed to the electric drill (3) (27, 28),
Rechargeable batteries (9) the secondary cell (9) charging structure without accompanied Tsu or out of and out of the battery compartment for housing (16) and a (16, 17, 18),
A drill connection portion of the rotating shaft (2) having the fixing structure (27, 28) and the insulating structure (1, 13, 17, 73) from the outer periphery of the charging structure (16, 17, 18). built proximally Urn accompanied the connections that can be rotated together to (2a) remote insulated operating rod (1),
Insulation structure (53, 13) between the distal end side and the proximal side where the rotary tool (6) of the remote insulation operation rod (1) protrudes, and a contact surface communicating from the outside to the inside of the remote insulation operation rod (1) Provide a waterproof structure (54, 71-74, 77) to prevent rainwater intrusion from the outside at the boundary,
An operation handle (5) that is detachably attached to the handle connection portion (2b) and that rotates the rotating shaft (2) forward and backward by manual operation,
The remote-insulated rotary operating tool characterized in that the electric drill (3) is capable of shifting operations including on and off from the outside of the remote insulating operating rod (1). The remote insulation operation rod (1) includes an electric drill (3) and a secondary battery (9) on the hand side, a fixing structure (27, 28) for the electric drill (3),
A charging structure (16, 17, 18) for the secondary battery (9);
Built in a cover (13) having an insulating structure (13, 17, 73) from the outer periphery of the fixing structure (27, 28) and the charging structure (16, 17, 18) ;
The cover (13), the counter-hand side of the connecting structure (32) to wake the Hare remote insulated operating rod that can be rotated together in the drill connecting portion to (2a) of the rotary member (8) (1), the detent structure (31 And an electrically operated drill unit (14) having a connecting structure (56, 57) which has a fixing structure (27, 28) and is attachable and detachable. Between the electric drill (3) and the direction change rotation transmission mechanism (4) including the drill connection part (2a) and the handle connection part (2b), and between the direction change rotation transmission mechanism (4) and the rotary tool (6). A torque limit mechanism (25) is provided in any of the rotation transmission systems of
Torque limit mechanism (25) is remotely insulating rotation operating member according to any one of claims 1, 2 e Bei torque adjusting means (26) for adjusting the torque value.