JP5450777B1 - Shared operation stick - Google Patents

Abstract

Provided is a common operation rod that can be operated without using both a long common operation rod and a short common operation rod.
A common operation rod 1 includes a tip portion formed so that various tip tools can be attached to an end portion in an axial direction of an operation rod body 2, and a gripping portion 4 for an operator to grip the operation rod body. The holding portion is configured to be extendable and contractable in the axial direction of the operation rod main body, and is formed in a cylindrical shape so as to cover the periphery of the fixed portion, and a fixing portion 41 formed integrally with the operation rod main body. The movable portion 42 moves along the outer peripheral surface of the fixed portion, and the fixing means 45 fixes the movable portion to the fixed portion.
[Selection] Figure 1

Description

  The present invention relates to a common operation rod whose overall length is formed to be extendable and contractible.

In the indirect hot-line work, a tip tool suitable for the work is connected to the tip of the common operation rod (see Patent Document 1).
In addition, there are two types of common operation rods, one is a long one where the operator grips a long part and the other is a short one. The long one is used to stabilize the common operation rod when using a heavy tip tool, and the short one is used when the work location is narrow.

JP 2012-161116 A

  However, as described above, depending on the work content, the long and short ones are used separately, so both common operation bars must be brought into the work place, and the work place becomes narrow and inconvenient to carry. There is a problem.

  In addition, when performing indirect hot-line work using an aerial work vehicle, the common operation rod that is not used is leaned in the bucket on which the operator is boarded. There is a problem of closing the operator's front and narrowing the work range.

The present invention has been made in view of such circumstances, the common operation rod long, and short common operation rod common operation rod which is capable of working without both common operation to stick the use of The main challenge is to provide

In order to achieve the above object, a shared operation rod according to the present invention includes a tip portion formed so that various tip tools can be attached to an end portion in the axial direction of the operation rod body, and an operator holds the operation rod body. A gripping portion for gripping, and the gripping portion is formed in a cylindrical shape so as to cover the periphery of the fixing portion, and a fixing portion formed integrally with the operation rod main body, and an outer periphery of the fixing portion a movable unit that moves along the surface, and fixing means for fixing the movable portion to the fixed portion, were closed, the movable portion is biased to the extended direction of the operating rod body by a spring, said securing means Comprises a contraction-side fixing means for fixing the state in which the movable part has moved most in the contraction direction, and an extension-side fixing means for fixing the state in which the movable part has moved most in the extension direction. The movable part is moved most in the contraction direction by the side fixing means. When fixed in a state, the entire length of the operation rod body is equivalent to a short shared operation rod, and when the movable portion is fixed in the most moved direction in the extension direction by the extension side fixing means, The total length of the operation rod main body is equivalent to a long common operation rod .

By having a movable part in which the grip part moves along the outer peripheral surface of the fixed part and a fixing means for fixing the movable part to the fixed part, the grip part of the common operation rod can be freely expanded and contracted, It is possible to work without using both the long common operation rod and the short common operation rod. For this reason, when the common operation rod is not used, the work portion can be widened by being contracted and stored, and can be easily carried. In particular, when a common operation rod that is not used in a bucket of an aerial work vehicle is leaned, the front of the worker is not blocked, so that the work can proceed smoothly.
Further, the fixing means includes the contraction side fixing means, so that the state in which the entire length of the operation unit main body is shortened can be maintained by fixing the gripping portion in the most contracted state, and the contraction side fixing means is released. As a result, the gripping portion can be extended by the spring.
Furthermore, since the movable part is provided with the extension side fixing means, it is possible to prevent the end of the grip part from being unexpectedly contracted from being stretched, and the operator's hand can be connected to the fixed part and the movable part. It becomes possible to prevent being pinched between.

The contraction-side fixing means includes a locking recess formed on the inner peripheral surface of the movable portion, and a claw portion provided on the fixing portion so as to be locked to the locking recess. A top of the head that is disposed outside the peripheral surface of the part and formed so as to be depressible; and a rod-like part that is formed so as to be accommodated inside the fixed part following the top of the head, The rod-shaped portion includes a protrusion formed at the tip and an intermediate portion bent at an acute angle formed between the top of the head and the protrusion, and the protrusion of the rod-shaped portion is locked with the locking recess. Thus, the movable portion is fixed to the fixed portion, and the extension-side fixing means is provided in the movable portion so as to be fitted to the fitting concave portion formed on the peripheral surface of the fixed portion and the fitting concave portion. And the pin is always urged to the fixed portion by the spring, and A top portion disposed outside the outer peripheral surface of the portion, and a rod-shaped portion formed so as to penetrate the movable portion following the top portion, and the rod-shaped portion of the pin and the fitting recess The movable part may be fixed to the fixed part by fitting.

When the movable part is fixed in a state where it is moved most in the contraction direction by the fixing means, the total length of the operating rod main body may be at least lower than the height of the wall surface of the bucket of the aerial work vehicle.
The total length of the operation rod body is at least lower than the height of the wall surface of the bucket of the aerial work vehicle so that the common operation rod does not protrude from the wall surface of the bucket. It can be widened.

The movable part may be formed with a joint part formed so as to be connectable to the connection part of the indirect hot wire tool at one end in the extending direction.
By forming the joint portion in the movable portion, it is possible to connect various tools to the common operation rod.

As described above, according to the common operation rod of the present invention, the movable portion that is formed in a cylindrical shape so as to cover the periphery of the fixed portion and moves in the axial direction of the operation rod main body, and the movable portion is fixed. The gripping part of the common operation rod can be expanded and contracted, and both the long common operation rod and the short common operation rod are used . It becomes possible to work without it. For this reason, when the common operation rod is not used, the work location can be widened by retracting and storing it, the carrying can be facilitated, and the work efficiency can be improved. In particular, when working in a bucket of an aerial work vehicle, the common operation rod does not protrude from the wall surface of the bucket, so that the work can be smoothly advanced and the working time can be shortened. .

FIG. 1 is a front view showing the entire common operation rod, (a) is a front view showing a state where the gripping portion is contracted, and (b) is a front view showing a state where the gripping portion is extended. It is. FIG. 2 is an enlarged cross-sectional view of the gripping part showing the operation of the contraction side fixing means, (a) is a diagram showing the gripping part in which the fixation of the contraction side fixing means is released, and (b) It is a figure which shows the holding part when the contraction side fixing means is fixed, and (c) is a figure which shows the holding part when the fixation of the contraction side fixing means is released. FIG. 3 is an enlarged cross-sectional view of the grip portion showing the operation of the extension side fixing means, and FIG. 3A is a view showing the grip portion when the extension side fixing means is fixed. ) Is a diagram showing a gripping part when releasing the extension side fixing means.

  Hereinafter, a common operation rod of the present invention will be described with reference to the accompanying drawings.

  As shown in FIG. 1, the common operation rod 1 has a tip portion 3 formed so that various tip tools can be attached to an end portion in the axial direction of the operation rod body 2, and an operator holds the operation rod body 2. And a grip portion 4.

  The operation rod main body 2 is a columnar member extending in the vertical direction, and includes an upper bar portion 21 positioned at an upper portion in the axial direction of the operation rod main body 2, an intermediate rod portion 22 positioned below the upper bar portion 21, A lower bar portion 23 having a diameter that can be grasped by a hand of an operator is integrally formed, and is made of an insulating material such as FRP (fiber reinforced plastic).

A tip portion 3 to which various tip tools used for indirect hot-line work of power equipment can be mounted is formed at an end portion in the axial direction of the upper rod portion 21 of the operation rod main body 2.
The distal end portion 3 includes a fitting portion 31 that is formed in a columnar shape, an engaging protrusion 32 that is formed to protrude leftward and rightward about the axis of the operation rod body 2, and an upper surface of the fitting portion 31. And an urging portion 33 that is urged upward by a spring (not shown) that is provided and accommodated in the fitting portion 31.

  Between the upper bar portion 21 and the intermediate rod portion 22 of the operation rod main body 2, a rain water adhering to the upper rod portion 21 flows along the intermediate rod portion 22 and the lower rod portion 23. A rain draining brim 10 is provided to prevent this.

  Between the intermediate bar portion 22 and the lower bar portion 23 of the operation rod main body 2, a limit collar 11 is provided to prevent an operator from gripping the operation rod main body 2 in the distal direction from a predetermined position. The limit collar 11 is preferably colored red or the like so as to attract the operator's attention.

Between the upper bar portion 21 and the intermediate rod portion 22 of the operation rod main body 2, a protection display portion 12 for alerting a high voltage is provided. The protective display unit 12 is made of an insulator such as plastic, and the surface thereof is colored yellow.
Note that a flange stopper 17 is provided between the protective display unit 12 and the limit collar 11 to prevent the limit collar 11 from shifting in the axial direction.

  The lower bar portion 23 is formed with a grip portion 4 on which an operator grips the operation rod main body 2. The grip portion 4 includes a fixing portion 41 formed integrally with the operation rod main body 2 and a fixing portion 41. A movable portion 42 that is formed in a cylindrical shape so as to cover the periphery of the fixed portion 41 and moves along the outer peripheral surface of the fixed portion 41, and a fixing means 45 that fixes the movable portion 42 to the fixed portion 41. The main body 2 is configured to be extendable and contractible in the axial direction.

  The fixed portion 41 is formed in a cylindrical shape, and includes an insertion portion 41a that is inserted into the movable portion 42 and a step portion 41b that is formed to have a diameter larger than that of the insertion portion 41a.

The movable part 42 is formed with a housing part 42a on its inner side so that the entire insertion part 41a of the fixed part 41 can be housed, and at the end part of the outer peripheral surface so as to be connectable with a connection part of an indirect hot wire tool. A joint portion 42b is formed.
The accommodation part 42a is open at one end, is formed in a cylindrical shape along the outer peripheral surface of the insertion part 41a of the fixing part 41, and has a diameter slightly larger than the outer diameter of the insertion part 41a.

  In addition, a coil spring 5 having a diameter equivalent to that of the insertion portion 41a of the fixing portion 41 is provided on the bottom surface 42c formed to face the opening end of the accommodating portion 42a. Therefore, since the coil spring 5 is provided between the insertion side end 41c of the insertion portion 41a of the fixed portion 41 and the bottom surface 42c of the accommodating portion 42a, the movable portion 42 is extended by the coil spring 5 by the extension of the operation rod body 2. Biased in the direction.

  The fixing means 45 includes a contraction-side fixing means 46 that fixes a state in which the movable portion 42 moves most in the contraction direction and covers the entire insertion portion 41a of the fixing portion 41, and a movable portion 42 moves most in the extension direction. Extension side fixing means 47 for fixing the state where most of the insertion portion 41a is exposed.

  As shown in FIG. 2, the contraction-side fixing means 46 locks the claw portion 6 provided in the stepped portion 41 b of the fixed portion 41 in the locking recess 42 d formed in the movable portion 42, thereby moving the movable portion 42 is fixed.

  The claw portion 6 includes a crown portion 61 that is formed so that the operator can press it, and a rod-shaped portion 62 that is formed following the crown portion 61, and a nail housing portion that is formed in the stepped portion 41 b of the fixing portion 41. 41d.

The rod-like portion 62 has a protrusion 63 having a triangular cross section at the tip, and an intermediate portion 64 formed between the crown 61 and the tip is formed at an acute angle toward the tip.
Further, in the claw accommodating portion 41 d, a spring 65 is replaced with the rod-shaped portion 62, and the crown portion 61 is urged outward by the spring 65.

  Therefore, by moving the movable portion 42 so as to be contracted, the claw portion 6 protrusion 63 is locked with the locking recess 42d, and the movable portion 42 is fixed. Further, when the crown 61 is pressed, the projection 63 is lowered and the claw portion 6 is detached from the locking recess 42d, so that the fixation is released.

  In addition, when the movable part 42 is fixed in a state in which it is most moved in the contraction direction by the fixing means 45, the entire length of the operation rod main body 2 is gripped so as to be lower than the height of the wall surface of the bucket of the aerial work vehicle. Part 4 is formed.

As shown in FIG. 3, the extension side fixing means 47 fixes the movable portion 42 by fitting the pin 8 formed in a bolt shape into the fitting concave portion 41 e formed in the fixing portion 41. is there.
The pin 8 includes a top portion 81 formed so as to be clamped by an operator, and a rod-shaped portion 82 formed following the top portion 81, and is provided in a pin housing portion 42 e formed in the movable portion 42. Yes.

  Further, a mounting portion 83 for replacing the spring is formed in the vicinity of the top portion 81 of the rod-shaped portion 82. In the pin housing portion 42e, the spring 9 is replaced with the mounting portion 83, and the top portion 81 is moved by the spring 9. It is biased toward the inside.

  Therefore, by moving the movable portion 42 so as to extend, the rod-like portion 82 of the pin 8 is fitted with the fitting recess 41e, and the movable portion 42 is fixed. Further, when the operator holds the top 81 of the pin 8 and pulls it out from the fitting recess 41e, the fixation is released.

As described above, according to the shared operation rod 1 of the present invention, the movable portion 42 that is formed in a cylindrical shape so as to cover the periphery of the fixed portion 41 and moves in the axial direction of the operation rod main body 2, and the movable portion 42. The holding means 45 for fixing the fixing portion 41 to the fixing portion 41, the grip portion 4 of the common operation rod 1 can be expanded and contracted, and the long common operation rod 1 and the short common operation rod 1 It is possible to work without using both shared operation rods 1 . For this reason, when the common operation rod 1 is not used, the work location can be widened by retracting and storing it, the carrying can be facilitated, and the work efficiency can be improved. In particular, when working in a bucket of an aerial work vehicle, the common operation rod 1 does not protrude from the wall surface of the bucket, so that the work can be smoothly advanced and the working time can be shortened. Become.

  In addition, the fixing means 45 includes the contraction side fixing means 46, so that the grip portion 4 is fixed in the most contracted state, so that the entire length of the operation rod main body 2 can be kept short. By releasing the fixing means 46, the grip 4 can be extended by a spring.

  Further, since the movable part 42 includes the extension side fixing means 47, it is possible to prevent the end part of the grip part 4 from being unexpectedly contracted by being pushed, so that the operator's hand can be prevented from contracting. And the movable portion 42 can be prevented from being pinched.

  The total length of the operation rod body 2 is at least lower than the height of the wall surface of the bucket of the aerial work vehicle so that the common operation rod 1 does not protrude from the wall surface of the bucket. The work range can be widened.

  By forming the joint part 42 b in the movable part 42, various tools can be connected to the common operation rod 1. Examples of the various tools include an adder bar that increases the overall length of the common operation bar 1.

DESCRIPTION OF SYMBOLS 1 Common operation rod 2 Operation rod main body 3 Tip part 4 Grip part 41 Fixing part 42 Movable part 45 Fixing means 46 Contraction side fixing means 47 Extension side fixing means

Claims (4)

A tip portion formed so that various tip tools can be attached to an end portion in the axial direction of the operation rod main body, and a gripping portion for an operator to grip the operation rod main body,
The gripping portion is formed integrally with the operation rod main body, a movable portion, a movable portion that is formed in a cylindrical shape so as to cover the periphery of the stationary portion, and moves along the outer peripheral surface of the stationary portion, have a, and fixing means for fixing the movable portion to the fixed portion,
The movable portion is urged in the extension direction of the operation rod main body by a spring,
The fixing means includes a contraction-side fixing means that fixes the state in which the movable part has moved most in the contraction direction, and an expansion-side fixing means that fixes the state in which the movable part has moved most in the extension direction. ,
When the movable portion is fixed in a state where it is most moved in the contraction direction by the contraction side fixing means, the total length of the operation rod body is equivalent to a short common operation rod,
A common operation bar characterized in that, when the movable part is fixed in a state of being moved most in the extension direction by the extension side fixing means, the entire length of the operation bar main body is equivalent to a long common operation bar. The contraction side fixing means is configured by a locking recess formed on an inner peripheral surface of the movable portion, and a claw portion provided in the fixing portion so as to be locked to the locking recess,
The claw portion is disposed outside the peripheral surface of the fixed portion and is formed so as to be depressible, and a bar shape formed so as to be accommodated inside the fixed portion following the top portion. And consists of
The rod-shaped portion includes a protrusion formed at the tip, and an intermediate portion bent at an acute angle formed between the top of the head and the protrusion,
The movable part is fixed to the fixed part by the protrusion of the rod-shaped part being locked with the locking recess,
The extension side fixing means includes a fitting recess formed on the peripheral surface of the fixing portion, and a pin provided on the movable portion so as to be fitted with the fitting recess.
The pin is constantly urged to the fixed portion by the spring, and is formed so as to penetrate the movable portion following the top portion and the top portion disposed outside the outer peripheral surface of the movable portion. It consists of a rod-shaped part,
The common operation rod according to claim 1, wherein the movable portion is fixed to the fixed portion by fitting the rod-shaped portion of the pin with the fitting recess.   The total length of the operation rod main body is at least lower than the height of the wall surface of the bucket of the aerial work vehicle when the movable portion is fixed in a state of being moved most in the contraction direction by the fixing means. Item 3. The common operation rod according to item 1 or 2. The common operation rod according to any one of claims 1 to 3, wherein the movable portion is formed with a joint portion formed at one end in the extending direction so as to be connectable to a connection portion of an indirect hot wire tool.

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