JP4425030B2 - Protective tube desorption device - Google Patents

Description

The present invention relates to a protective tube detaching apparatus, and more particularly to a device that can safely attach and detach a protective tube to and from an electric wire.

  Conventionally, in order to prevent an electric shock by touching an electric wire or damaging the electric wire itself during construction work, the protective wire is put on the electric wire before construction work is performed. . This protective tube is generally attached to an electric wire using a protective tube desorption device, and this protective tube desorption device is an electric wire that supplies electric power while ensuring insulation with an operator. Since it is necessary to attach a protective tube to the device, the main body of the device is attached to the tip of the operation rod with which insulation is ensured (see, for example, Patent Document 1).

  However, in such a protective tube detaching device, since most of the components of the device are concentrated on the main body that performs the mounting operation of the protective tube, the operator handles the operation rod that concentrates the load on the tip. There was a problem that the work burden was excessive.

For this reason, various efforts have been made to reduce the load applied to the distal end of the operating rod. For example, a protective tube that enables a hydraulic motor, which is a drive source for the apparatus main body, to be installed at a location different from the operating rod. A desorption device has been proposed (see, for example, Patent Document 2).
JP 2000-197225 A JP 2003-47115 A

However, in such a proof Mamorukan desorber, since the guide in close contact to press one portion of the protective tube in the guide, the protective tube will deflect by deformation and detachable smooth This can make it difficult and the protective tube can come off the guide.

SUMMARY OF THE INVENTION An object of the present invention is to provide a protective tube detaching apparatus that can smoothly guide and smoothly attach and detach a protective tube.

A first invention of a protective tube detachment apparatus that solves the above-mentioned problems is a protective tube detachment device that attaches or detaches a protective tube for an electric wire, and guides the protective tube that is attached to or detached from the electric wire. A guide, a member that is in close contact with the protective tube guided by the guide, and advancing / retracting device that rotates and moves the protective tube, and an outer peripheral surface is in contact with the edge of the guide that is disposed on the electric wire side of the advance / retract device And an auxiliary roller that is driven and rotated while being sandwiched between the guide and the protective tube that is advanced and retracted by the advance / retreat device by being rotatably supported in a state .

In the present invention, the protection tube that is advanced and retracted while being guided by the advancing / retreating device is brought into close contact with the guide, so that the protection tube is prevented from being separated from the guide not only by one place but also by the auxiliary roller. Therefore, the protective tube guided by the guide can be advanced and retracted while limiting the bending of the protective tube.

A second invention of the protective tube desorber to solve the above problems, in addition to the specific matters of the first invention, before KiSusumu retraction device, the tire shape for rotating while biasing the protective tube guide side and contact member comprises a rotatably supported roller members so disposed at three positions on the guide side to be continuous in the direction of rotation of said seal bonding member presses the protective tube to the contact member, the roller The member is characterized in that the outer diameters on both sides are set larger than the central outer diameter .

In this invention, the protective tube can be pressed and guided by the guide against the tire-shaped contact member that is rotationally driven by the three roller members. At this time, the protective tube is greatly deformed by the tire shape of the contact member. On the contrary, the close contact member can be deformed to move the protective tube. Further, the roller member can reliably press the protective tube against the contact member at three locations by changing the outer diameter between the outer side and the center according to the width of the contact member closely contacting the protective tube, and the outer roller member. Is formed to have a large diameter and the protective tube that presses against the contact member is not greatly deformed. Therefore, the protective tube can be advanced and retracted while being guided by the guide without being damaged by the close contact with the close contact member.

In addition to the specific matters of the first or second invention described above, the third invention of the protective tube detaching apparatus that solves the above-mentioned problems is arranged at a position opposed to the guide and is brought into contact with the upper side of the electric wire. A positioning part for positioning the relative position between the guide and the electric wire; an abutting part for contacting the electric wire abutting on the positioning part so as to be sandwiched from below and maintaining a positioning state by the positioning part; a positioning part; A stopper member that restricts the electric wire to be moved by relative movement from the direction of hooking with the abutting portion and restricting the electric wire , and
The positioning portion restricts that electric wire is disengaged from the opposite side of the stopper member by being extended than the stopper member side from the opposite side of the stopper member to a position adjacent to the wire toward the contact portion A separation preventing portion is formed.

In the present invention, when positioning and holding the guide across the wire between the position-decided Me portion a contact portion, the wire from between the positioning portion and the contact portion is extended so as to be adjacent to be disengaged It is prevented by the separation prevention part. Therefore, it is limited that the guide is detached from the electric wire during the work, and the work for detaching the protective tube can be completed without interruption.

According to the present invention, it is possible to prevent the protective tube from being separated from the guide by closely contacting the protective tube so that the guide is guided not only by the advance / retreat apparatus but also by the auxiliary roller, and without bending the protective tube. You can move forward and backward with guidance. Therefore, the protective tube can be attached and detached safely and smoothly without inadvertently removing the protective tube.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, the best embodiment of the invention will be described with reference to the drawings. FIGS. 1-7 is a figure which shows one Embodiment of the protection pipe desorption apparatus which concerns on this invention. FIGS. 1 to 3 are diagrams showing a detachable main body device for attaching or detaching a protective tube for electric wires, FIG. 4 is a diagram showing an example of the protective tube, and FIGS. 5 and 6 are tip portions where insulation is ensured. FIG. 7 is a view showing an operating rod that is attached to the detachable main unit and positioned near the electric wire, and FIG. 7 is a view showing a power unit that operates the detachable main unit.

  In FIG. 1, the detachable main body device 10 includes a guide 11, a tire 12, a rotating device 13, a roller set 14, an auxiliary arm 15, and a holding device 16. 4 is sent out from the rear end side (the right side in FIG. 1) to the front end side (the left side in FIG. 1) to be attached to the electric wire D. On the contrary, the protective tube 100 is attached from the front end side to the rear end. It can be pulled out to the side and separated from the electric wire D.

  Here, as shown in FIG. 4A, the protective tube 100 has a main body portion 101 formed in a long cylindrical shape, and is formed on one end side of the main body portion 101 so that the tip end side is expanded in a trumpet shape. A receiving portion 102 to be opened and an insertion portion 103 formed on the other end side of the main body portion 101 and inserted into the receiving portion 102 are provided. When the insertion portion 103 is inserted into the receiving portion 102, the protective tube 100 has a flange-shaped portion 103a at the tip of the insertion portion 103 attached to the ring-shaped portion 102a whose inner diameter is enlarged in the middle of the receiving portion 102. A plurality of them can be connected by engaging them, and the receiving part 102 and the plug-in part 103 can be separated by applying a certain pulling force. Further, as shown in FIG. 4B, the protective tube 100 is formed with leg portions 104 that protrude from the outer surfaces of the main body portion 101, the receiving portion 102, and the insertion portion 103 and continue in the extending direction. The leg portion 104 has a structure in which two leg plates 104a and 104b with the outer surfaces on both sides are extended to face each other to ensure a distance from the inside of the main body portion 101 to the end side (insulation from the inside). For this reason, the protective tube 100 has a structure in which the leg plates 104a and 104b of the leg portion 104 are expanded so as to be separated from each other so that the electric wire D is accommodated and attached while the electric wire D is pulled out and detached. It has become. The protective tube 100 can easily engage and release the ring-shaped portion 102a of the receiving portion 102 and the flange-shaped portion 103a of the insertion portion 103 by expanding the leg portion 104.

  Then, the guide 11 returns to FIG. 1, the edge portion 21 that is inserted into the main body portion 101 of the protective tube 100 and guides the inner surface thereof, and the guide 11 protrudes from the rear end side of the edge portion 21 to receive the protective tube 100. An insertion rod 22 to be inserted into the portion 102, and an interruption plate 23 to be inserted and expanded between the leg plates 104a and 104b of the leg portion 104 of the protective tube 100 into which the insertion rod 22 is inserted. . The edge portion 21 is configured to guide the protective tube 100 along the electric wire D when the distal end side is close to the extending position of the electric wire D, and at the same time, the leg portion where the interrupt plate 23 is expanded. The electric wire D is inserted between the leg plates 104a and 104b of the 104 so that the electric wire D is accommodated in the main body 101 and the protective tube 100 is attached. The guide 11 can be attached with the auxiliary guide 25 shown in FIG. 2. The insertion guide 22 and the interrupt plate 23 are extended by the auxiliary guide 25, so that the protective tube 100 can be easily inserted and attached. It can also be made possible.

  The tire 12 is rotatably held so as to be in pressure contact with the edge portion 21 of the guide 11, and is rotated by a rotating device 13. The tire 12 rotates while being deformed, so that the tire 12 moves in close contact so as to grip the protective tube 100 guided by the guide 11, and is attached to the electric wire D (tip direction) or detached direction ( The protective tube 100 is advanced and retracted in the rear end direction). The rotating device 13 includes a joint 27 (described later in detail) that is connected to an operation rod 40 that will be described later, and an umbrella-like shape that changes the direction of the rotation axis so that the tire 12 is rotated by the rotation of the joint 27. A gear train 13a, and receives the rotational force transmitted from the operation rod 40 to drive the tire 12 to rotate. That is, the tire 12 constitutes a close contact member, and constitutes an advancing / retreating device together with the rotating device 13, and the rotating device 13 constitutes a transmission device.

The roller set 14 is disposed on the edge portion 21 of the guide 11 closely contacting the tire 12 so that the rotation direction of the outer peripheral surface coincides with the advancing / retreating direction of the protective tube 100 guided by the guide 11 (rotation of the tire 12). The three rollers 31 to 33 are rotatably supported in parallel so as to be continuous in the direction. The roller set 14 is configured to rotate and send out the protective tube 100 to which the tire 12 is pressed and supported by each of the three rollers 31 to 33. As a result, the protective tube 100 is greatly deformed and damaged. It is possible to advance and retreat while preventing this. The roller set 14 has outer rollers 31 and 33 having a large diameter, and a central roller 32 between them is formed to have a small diameter. The roller set 14 has a width for pressing the protective tube 100 against the tire 12. The width is made narrower than when the large-diameter rollers are tripled. Thereby, the pressing width of the protective tube 100 can be matched to the tight width of the tire 12, and deformation caused by pressing the large-diameter rollers 31 and 33 on the outside is reduced.

The auxiliary arm 15 rotatably supports the auxiliary roller 15a on the distal end side, and the auxiliary roller 15a is sandwiched between the auxiliary roller 15a and the distal end side of the edge portion 21 of the guide 11 while the auxiliary roller 15a is sandwiched between them. The protective tube 100 is advanced and retracted by the tire 12 and is guided to rotate . Accordingly, the auxiliary arm 15 prevents the inner surface of the main body 101 from being separated from the edge portion 21 of the guide 11 when the leg portion 104 of the protective tube 100 is expanded.

  As shown in FIG. 3, the holding device 16 is disposed on the opposite side of the guide 11 (opposite position of the guide 11) across the advancing / retreating path of the protective tube 100 and hooks on the electric wire D to position the detachable main body device 10 itself. A positioning member 35 to be held, a contact member 36 to be positioned and held with respect to the guide 11 with the electric wire D sandwiched between the positioning member 35, and a joint that is rotated by being connected to an operation rod 40 described later. 37 (which will be described in detail later) and functions to position and hold the electric wire D at the attaching / detaching position of the protective tube 100 guided by the guide 11 and to hold the attaching / detaching main body device 10 in the vicinity of the electric wire D. .

  The positioning member 35 and the abutting member 36 of the holding device 16 are formed at portions where the positioning portion 35a and the abutting portion 36a face each other so as to position and hold the electric wire D, and extend in the facing direction. The groove-shaped portion 35b is formed on the positioning member 35 side and the rib-shaped portion 36b is formed on the contact member 36 side so as to mesh with each other. Thereby, the positioning member 35 and the contact member 36 can be slid in the direction in which the positioning portion 35a and the contact portion 36a are brought close to or away from each other, and the electric wire D can be held and released.

  Further, the positioning member 35 and the abutting member 36 of the holding device 16 are provided with male screws and female screws (not shown) whose screwing directions coincide with the extending directions of the groove-shaped portion 35b and the rib-shaped portion 36b. One of the male screw and the female screw can be relatively rotated in conjunction with a joint 37 that connects an operation rod 40 and the like described later. As a result, the positioning member 35 and the contact member 36 rotate the joint 37 to rotate one of the male screw and the female screw relative to the other, thereby increasing the distance between the positioning portion 35a and the contact portion 36a. Thus, the electric wire D can be positioned and held.

  Further, the holding device 16 is formed with a stopper member 38 and a separation preventing member 39. The stopper member 38 is provided so as to be positioned on the back side when the electric wire D is held with the positioning portion 35a and the contact portion 36a separated from each other, and the stopper member 38 is overrun by stopping when holding the electric wire D. It functions as a guide when restricting and gripping. The separation preventing member 39 is formed by extending the tip of the positioning portion 35a toward the contact portion 36a so as to face the stopper member 38, and the separation interval between the positioning portion 35a and the contact portion 36a is narrowed. By doing so, the electric wire D is prevented from being carelessly detached from the gap. As a result, the detachable body device 10 is sandwiched between narrow members that are out of the position where the electric wire D should be positioned and held (between the positioning portion 35a and the contact portion 36a), and extra work and time are required. It is possible to easily hold the electric wire D while avoiding the above and to prevent the electric wire D from coming off during the operation.

  3 is attached in a curved shape so as to cover the corner portion of the holding device 16, and the sliding plate 34 of the protective tube 100 guided toward the paper surface so as to be attached to the electric wire D. It slides so that corners do not hit and stop. In order to reduce the weight, the sliding plate 34 is appropriately cut out like other members.

  Next, in FIG. 5, the operation rod 40 includes a free rotation shaft 41, a grip portion 42, a coupling rod 43, a distal end side coupling device 44, and proximal end side coupling devices 45 and 46. While gripping the grip portion 42 on the end (lower part in FIG. 5) side, a power device 60 (to be described later) is connected to the base end side coupling device 45 or 46 and the free rotation shaft 41 is rotated, whereby the tip ( The attachment / detachment main body device 10 attached to the distal end side coupling device 44 in the upper part in FIG. 5 is operated.

  The operating rod 40 has a base end side of a free rotating shaft 41 rotatably accommodated and supported in a gripping portion 42, and a distal end side of the free rotating shaft 41 is connected to the gripping portion 42 and connected to a shaft. It is rotatably supported by a support portion 47 on the distal end side of the connecting rod 43 parallel to the center. Further, a distal end side umbrella cover 48 and a proximal end side umbrella cover 49 are attached to the free rotating shaft 41 and the connecting rod 43. Thereby, the operating rod 40 is branched to the connecting rod 43 side without a dripping path such as rainwater from the distal end side of the free rotating shaft 41 being continuous to the gripping portion 42 side. The umbrella cover 48 attached to the distal end side of the connecting rod 43 drips moisture from the electric wire D side, and the base position side umbrella cover 49 indicates the limit position where the work can be safely performed. Ensure safety when operating.

  As shown in FIG. 6, the distal end side coupling device 44 moves the distal end portion of the operating rod 40 in the axial direction of the free rotation shaft 41 to contact and separate from the joint 27 of the detachable main body device 10 shown in FIG. 1. The joint 27 is formed in a male-female structure that can be attached / detached by inserting or removing the outer sheath 40a at the tip. In the distal end side coupling device 44, an engagement pin 51 is erected on the outer surface (side surface) of the distal end portion exterior 40 a and a hexagonal hole 41 a is formed in the distal end surface of the free rotating shaft 41. As a result, the distal end side coupling device 44 inserts the engagement pin 51 into the engagement groove 27a of the joint 27 that is notched in the insertion direction and opened at the same time as the distal end exterior 40a is inserted into the joint 27. In addition, a hexagonal column 27b erected on the bottom surface of the joint 27 so as to be relatively rotatable can be inserted into and connected to the hexagonal hole 41a. In other words, the distal end side connecting device 44 connects the engagement pin 51 and the free rotating shaft 41 so that the gear train 13a (tire 12) can be rotated forward and backward relative to the joint 27.

  The engagement pin 51 is fixed to the exterior 40 a at the tip of the operation rod 40 and is covered with an exterior cover 51 b that is biased toward the exterior 40 a by a spring 51 a. When it is inserted into the groove 27a, the exterior cover 51b is prevented from retreating and fitting into the large hole portion 27c of the engagement groove 27a, thereby inadvertently coming off the joint 27. The free rotating shaft 41 may have a structure in which the rotating shaft itself is exposed to rotate, or, like the position where the hexagonal hole 41a is formed, an exterior cover may be attached and only the inside may rotate.

  Here, in the joint 27, the engaging groove 27a is also formed at a symmetrical position around the axis of the free rotation shaft 41 (on the back side of the paper surface in FIG. 1), and the operating rod 40 is connected without greatly rotating. Can be attached. Needless to say, the engaging groove 27a may be formed at three or more places, not limited to two places, as long as the strength of the joint 27 can be ensured.

  Similarly, the joint 37 can hook the engagement pin 51 into the bending groove 37b by engaging the engagement pin 51 of the distal end side coupling device 44 with the engagement groove 37a and rotating it forward and backward. In addition, since it only needs to be rotated at the time of the holding operation with the electric wire D of the detachable main body apparatus 10, it is possible to engage with an engaging pin of a separate operating rod not having a rotating function and rotate together with the operating rod. Good.

  Returning to FIG. 5, the proximal-side coupling device 45 is attached to the vicinity of the center of the grip portion 42, and includes a coupling shaft 45 a that is rotated by a power device 60 described later. The proximal-side coupling device 46 is attached to the end of the grip portion 42, and includes a coupling shaft 46a that is rotated by a power device 60 described later.

  The connecting shaft 45a of the base end side connecting device 45 is connected to the free rotating shaft 41 via, for example, an umbrella-shaped gear train (not shown) that changes the direction of the rotating shaft. A power device 60 (to be described later) can be attached from the orthogonal direction to rotate the free rotation shaft 41 forward and backward. On the other hand, the connecting shaft 46 a of the base end side connecting device 46 is directly connected to the free rotating shaft 41, and a power device 60 (described later) is attached from the same direction as the operating rod 40 to rotate the free rotating shaft 41 forward and backward. Can be made.

  Next, in FIG. 7, the power unit 60 includes a hydraulic motor main body 61 that is connected to the connecting shafts 45 a and 46 a of the base end side connecting apparatuses 45 and 46, and a hydraulic pressure supply device that generates hydraulic pressure that drives the hydraulic motor main body 61. 62, and a hydraulic hose 63 that forms a hydraulic flow path between the hydraulic motor main body 61 and the hydraulic pressure supply device 62. The power unit 60 supplies the supply hydraulic pressure from the hydraulic supply unit 62 via the forward hose 63a of the hydraulic hose 63, and supplies the return hydraulic pressure from the hydraulic motor main body 61 via the return hose 63b of the hydraulic hose 63. By returning, the hydraulic motor body 61 can be driven by circulating the hydraulic pressure between the hydraulic pressure supply device 62. As a result, the power unit 60 can rotate the free rotation shaft 41 of the operation rod 40 forward and backward, and the rotation of the free rotation shaft 41 is transmitted to the tire 12 via the joint 27 to rotate and remove it. The protective tube 100 can be moved forward and backward by the main body device 10 to be attached to and detached from the electric wire D.

  The hydraulic motor main body 61 is configured to connect the drive rotation shaft 61 a to the connection shafts 45 a and 46 a of the base end side connection devices 45 and 46. The hydraulic motor main body 61 is attached to the operating rod 40 by the holder 61b so as to avoid an unnecessary load from being applied to the connecting portion by an external force.

  The hydraulic pressure supply device 62 is provided with an adjustment lever 62 a for switching the start or interruption of the supply of hydraulic pressure to the hydraulic motor main body 61 and adjusting the hydraulic pressure supplied to the hydraulic motor main body 61, and driving / stopping the hydraulic motor main body 61. In addition, the rotational speed of the hydraulic motor main body 61 can be freely adjusted and can be remotely operated from a position via the hydraulic hose 63.

  The hydraulic hose 63 has a length that allows the operator to install the hydraulic supply device 62 away from the operation rod 40 in, for example, a bucket on which an operator is boarded, and the load applied to the operation rod 40 is reduced. Only a lightweight hydraulic motor main body 61 can be provided with a simple configuration.

  Thus, in the present embodiment, the distal end side of the operating rod 40 is easily operated by moving the power unit of the detachable main body device 10 attached to the distal end portion of the operating rod 40 to the proximal end side of the operating rod 40 or the like. The weight of the operating rod 40 itself can be avoided by using a hydraulic motor in which only the hydraulic motor main body 61 can be installed on the operating rod 40 as the power unit. Has been. Further, the hydraulic hose 63 of the power unit 60 does not need to be rotated and can be freely bent, so that it does not hinder the operation of the operation rod 40 by the operator. Therefore, unlike the conventional flexible shaft, the operability of the operating rod 40 is not impaired, the detachable body device 10 can be driven and operated comfortably, and the protective tube 100 can be easily connected to the electric wire D. It can be attached to.

  Further, in this detachable main body device 10, the joint 27 can be easily attached to the distal end side connecting device 44 of the operation rod 40, the holding device 16 realizes easy positioning and holding with the electric wire D, and the roller set 14 Guiding by the edge portion 21 of the guide 11 is realized while avoiding damage to the protective tube 100 by the tire 12.

  Therefore, the operation rod 40 can be easily handled to operate the detachable main body device 10, and the protective tube 100 can be attached to and detached from the electric wire D with less work burden on the operator.

  Here, as another aspect of the present embodiment, the free rotation shaft 41 of the operating rod 40 is not limited to the power device 60 of the hydraulic motor, but the connection shaft 45a of the base end side connection devices 45 and 46 is rotated. 46a may be connected to the rotating means.

  For example, as shown in FIG. 8A, a drive rotary shaft 71 that can be connected to the connection shafts 45 a and 46 a of the base end side connection devices 45 and 46 is attached to the hand drill 70, and the free rotation shaft 41 of the operation rod 40. It is good also as a power unit which rotates. The hand drill 70 shown in FIG. 8A is held by a holder 72 attached to the grip portion 42 of the operation rod 40, and the holder 72 is connected to the drive rotary shaft 71 of the hand drill 70 and the proximal end side coupling device 45. It is avoided that an unnecessary load is applied to the connecting portion with the connecting shaft 45a due to an external force. In this case, the hydraulic pressure supply device 62 is not required, and only the operation rod 40 can be carried with the hand drill 70 to perform the work of detaching the protective tube 100 from the electric wire D.

  As shown in FIG. 8B, the holder 72 includes an attachment portion 73 to the grip portion 42 of the operating rod 40, an attachment portion 74 to the grip portion 70a of the hand drill 70, and these attachment portions 73 and 74. And a connecting portion 75 for connecting the two. The attaching portion 73 can connect the rotating arc portion 73b with respect to the fixed arc portion 73a by the hinge portion 73c, and can attach and detach the grip portion 42 of the operating rod 40. It is supposed to be fixed by. The mounting portion 74 can be attached and detached by housing the grip portion 70a of the hand drill 70 in the U-shaped portion 74a, and hooks the elastic band 74b on the protrusion 74c on the outer surface of the U-shaped portion 74a. Thus, the grip 70a of the hand drill 70 can be fastened and fixed. The strength of the connecting portion 75 is ensured by raising a rib 75 b on the side surface of the connecting plate 75 a between the attachment portions 73 and 74.

  Further, as shown in FIG. 9, a connecting portion 81 that can be connected to the connecting shafts 45a, 46a of the base end side connecting devices 45, 46 is formed at the tip of the handle 80, and the free rotating shaft 41 of the operating rod 40 is rotated. It is good also as a power unit to be made. The handle 80 can rotate the free rotation shaft 41 of the operating rod 40 by gripping the grip portion 82 on the proximal end side and rotating it around the connecting portion 81 on the distal end side. Thus, only the operation rod 40 can be carried along with the handle 80, and the work for detaching the protective tube 100 from the electric wire D can be performed.

  Although one embodiment of the present invention has been described so far, it is needless to say that the present invention is not limited to the above-described embodiment, and may be implemented in various forms within the scope of the technical idea. For example, in the present embodiment, a protective tube is attached to an electric wire and described as a device that can be detached from the electric wire, but it goes without saying that it may be configured as one of the dedicated machines. .

It is a figure which shows one Embodiment of the protection pipe desorption apparatus which concerns on this invention, and is a top view which shows the schematic whole structure of the desorption main body apparatus. It is a top view which shows the auxiliary | assistant guide which can be attached or detached to the attachment or detachment main body apparatus of the protective tube removal | desorption apparatus. It is the elevation view seen from the rear end side which shows the principal part structure of the desorption main body apparatus of the protective tube desorption apparatus. It is a figure which shows the protective tube attached / detached to an electric wire with the protective tube removal | desorption apparatus, (a) is the top view, (b) is the AA sectional drawing. It is a top view which shows the operating rod of the protection tube removal | desorption apparatus. It is a figure which shows the front-end | tip part of the operation rod, (a) is the top view seen from the extension direction outer side, (b) is the partial longitudinal cross-sectional view which expanded the front-end | tip part. It is a top view which shows the motive power apparatus of the protection tube removal | desorption apparatus. It is a figure which shows the other aspect of the protection tube removal | desorption apparatus, (a) is a top view which shows the operating rod and a power unit, (b) is a top view which shows the holder which connects the operating bar and a power unit. . It is a figure which shows the other aspect of the protection tube removal | desorption apparatus, and is a top view which shows the operating rod and a power unit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Desorption main body apparatus 11 Guide 12 Tire 13 Rotating apparatus 13a Gear train 14 Roller set 15 Auxiliary arm 16 Holding apparatus 21 Edge part 22 Insertion bar 23 Interrupting plate 25 Auxiliary guide 27, 37 Joint 27a, 37a Engaging groove 31-33 Roller 35 Positioning member 36 Abutting member 38 Stopper member 39 Detachment preventing member 40 Operating rod 41 Free rotating shaft 42 Grip portion 43 Connecting rod 44 Front end side connecting device 45, 46 Base end side connecting device 45a, 46a Connecting shaft 51 Engaging pin 60 Power Device 61 Hydraulic Motor Body 62 Hydraulic Supply Device 63 Hydraulic Hose 70 Hand Drill 71 Drive Rotating Shaft 72 Holder 80 Handle 100 Protective Tube 101 Body 102 Receiving Portion 103 Insertion Portion 104 Leg

Claims (3)

A protective tube desorption device for attaching or detaching a protective tube for electric wires,
A guide for guiding a protective tube to be attached to or detached from the electric wire, an advancing / retracting device for rotating and moving the protective tube by a member closely contacting the protective tube guided by the guide; Is also provided on the wire side and is rotatably supported with the outer peripheral surface being in contact with the edge of the guide. And a protective tube detachment device comprising: a roller. The advancing / retracting device is disposed at three positions on the guide side so as to be continuous with the rotating direction of the contact member, and is rotated by driving the protective tube while urging the protection tube toward the guide side. A roller member rotatably supported so as to press the tube,
2. The protective tube detachment apparatus according to claim 1, wherein the roller member has an outer diameter on both sides set larger than an outer diameter at the center. A positioning part that is arranged at a position opposite to the guide and is hooked and brought into contact with the upper side of the electric wire so as to position the relative position between the guide and the electric wire, and is sandwiched from below by the electric wire that comes in contact with the positioning part A contact part that contacts and maintains the positioning state by the positioning part; and a stopper member that restricts the electric wire to be moved by relative movement from the direction of hooking between the positioning part and the contact part and restricts overrunning. , And
The positioning portion restricts that electric wire is disengaged from the opposite side of the stopper member by being extended than the stopper member side from the opposite side of the stopper member to a position adjacent to the wire toward the contact portion The protective tube detachment apparatus according to claim 1, wherein a detachment prevention portion is formed.

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