JP2595411Y2 - Insulation holder for hydraulic tools - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulating holder for a hydraulic tool used for wire processing in construction of overhead distribution lines.

[0002]

2. Description of the Related Art In recent years, in the construction of overhead distribution lines, an indirect live-line construction method has been performed in which a series of operations such as cutting, peeling, and crimping of electric wires are performed in an uninterrupted live state. A dedicated hydraulic tool is used for each of these operations. In addition, from the viewpoint of workability and operability, this indirect hot-line work is performed by connecting a hydraulic pump mounted on a work vehicle such as an aerial work vehicle or a backhoe with a pressure-resistant insulating hydraulic hose and using a so-called hydraulic head separation. Type tools are often used.

[0003] As a hydraulic head separation type tool that uses such a hydraulic tool separately from a hydraulic pump, for example,
In the case of a hydraulic cutter tool, as shown in FIG. 5, an insulating hydraulic hose 3 is attached to a hydraulic cutter 30 as a tip tool.
1 and a coupler 32 is connected to the end of the hydraulic hose 31.
An operation cord 34 having an outlet 33 is attached along the hydraulic hose 31. An operation switch is connected to the end of the operation cord 34, and the hydraulic cutter 30 and the hydraulic hose are connected. 31 is configured so that the operation switch portion together with the connection portion 31 is integrally covered with an insulative gripped holder body 35 and can be gripped;
The coupler 32 and the outlet 33 are connected to a hydraulic pump device, and a grip 36 of a holder body 35 is gripped and a protruding switch 36 is pressed to remotely control and operate the hydraulic pump device. There is one that can be cut.

[0004]

However, as shown in the above-mentioned hydraulic cutter tool, in the conventional hydraulic head-separated type tool, an insulating holder provided with a hydraulic hose and a cord is dedicated to each tip tool. Since the end tools are used in such a manner that the end tools are integrally incorporated, it is necessary to arrange the necessary types for each end tool according to the work purpose, which is uneconomical. In addition, it is necessary to repeat the attachment / detachment to / from the hydraulic pump each time the type of work is changed, and there is a problem in workability. Furthermore, an operation switch protrudes from the grip portion of the insulating holder. When moving or changing the hydraulic tool during work, the switch is inadvertently gripped.
In some cases, the switch was pressed to operate, and improvement was required in terms of safety.

[0005] In view of the above situation, an object of the present invention is to provide an insulating holder for a hydraulic power tool that can replaceably mount a plurality of hydraulic power tools and does not inadvertently press an operation switch. It is.

[0006]

In order to achieve the above object, the present invention provides an insulating holder for a hydraulic accessory which is provided with a hydraulic hose, an operating cord, and an operating switch, and is connected to a hydraulic pump device. The hydraulic hose has a fitting for connecting to a hydraulic tip tool at a distal end thereof, and is inserted in a tubular insulating holder body provided with a grip so as to be movable back and forth and rotatable. The hydraulic tool is fixed to the insulating holder body with or without a mounting adapter, with the hydraulic tool connected to the hydraulic hose. With this, a plurality of hydraulic tools can be exchanged, and the operation switch unit has a front part.
Is formed on the hook portion for shielding the operation switch, the rear mounting et al are pivotably to the grip, is constantly urged by a spring in a direction to shield the front surface of the front Symbol operation switch Tei
The present invention proposes an insulating holder for a hydraulic tool bit, wherein a shielding member is attached.

[0007]

In this insulating holder, the hydraulic hose is pulled out from the insulating holder body forward, the hydraulic tool is connected to the connection fitting, then the hydraulic tool is placed in the insulating holder body, and the predetermined front and rear position and the predetermined position are determined. Can be mounted with the fixing tool at or without the rotation adapter at the angular position in the rotation direction. Further, the mounted hydraulic accessory can be detached from the connection fitting by unfastening the fixing tool and pulling it out of the insulating holder body, so that a plurality of hydraulic accessory tools can be replaced.

After the hydraulic hose and the operating cord are connected to the hydraulic pump device, the user grips the grip portion and presses the shielding member of the operation switch portion with his / her finger to remove the shielding state against the spring force and release the operation switch. By pressing, the hydraulic pump can be operated to perform the hydraulic work, or the hydraulic pump can be stopped to terminate the hydraulic work. Can be returned to a state in which the operation switch is shielded, so that the operation switch is not inadvertently pressed.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an insulating holder according to the present invention. FIG. 1 is a side view of the insulating holder of the present invention with a compressor attached as a hydraulic tool, FIG.
1 is a cross-sectional plan view of the insulating holder of FIG. 1, and FIG.
FIG. 4 is a cross-sectional view taken along a line II, and FIG. 4 is a plan cross-sectional view of an insulating holder according to another embodiment in which a mounting tool is attached to a hydraulic tool bit.

In FIG. 1, reference numeral 1 denotes a body of the insulating holder A, which is formed in a cylindrical shape with an insulating synthetic resin and has a grip 2 formed at a lower portion. An insulating hydraulic hose 3 is inserted through the body 1 in a non-fixed manner from the base side. The hydraulic hose 3 has a coupler 4 at its base end so that it can be connected to a hydraulic pump (not shown). The connection fitting 6 is connected to the section so that the compressor 5 can be connected as a hydraulic tip tool.
Further, a fixing screw 7 for fixing the connected compressor 5 is screwed to the front end edge of the body 1. That is, as shown in FIG. 2, after the hydraulic hose 3 is inserted into the body 1 from the base end side, a stopper 8 is attached to the connection fitting 6 so as to be position-adjustable so as not to fall off. A ring-shaped reinforcing metal fitting 9 is incorporated into an edge portion of the tip of the body 1, and a fixing screw 7 is attached through the reinforcing metal fitting 9. The hydraulic hose 3 is pulled out in the distal direction, and the compressor 5 is connected to its conduit part. 10 proximal couplers 1
After attaching to the connection fitting 4 of the hydraulic hose 3 at 0a, it is pulled into the body 1 and turned to a required angle, and the neck is tightened with the fixing screw 7, so that the compressor 5 can be fixed.

[0011] grip 2 at the bottom of the body 1, as shown in FIG. 1, the insulating operating switch 11 by the synthetic resin is protruded Yes buried the operation switch section, for remote control to the operation switch section A cord 12 is connected, and the base end of the cord 12 is a metal outlet 1
3 and connected to a hydraulic pump to depress the operation switch 11, thereby operating the hydraulic pump to advance the piston 14 of the compressor 5 and retreating the advanced piston 14; Remote operation such as stopping is enabled.

In the present invention, a shielding lever 15 as a shielding member is provided along one side surface of the operation switch portion of the grip 2. As shown in the sectional view of FIG. Is a hook-shaped portion 15a formed in a hook shape, and the front surface of the operation switch 11 can be shielded by the hook-shaped portion 15a. That is, the shielding lever 15 has a rear portion attached to the grip 2 by a spring 16 so that the hook-shaped portion 15a can be rotated from above to a position for shielding the front surface of the operation switch 11.
The operation switch 11 is attached to the operation switch 11 in a constantly biased state by means of screws 17, and projections 18 and 19 are provided above and below the operation switch 11 (FIG. 1). 11 is not pressed. Then, the finger is caused to slide upward along a projection 18 provided below the operation switch 11 so that the shielding lever 1
5 is pushed up to expose the operation switch 11, and the operation switch 11 can be pressed as it is. When the finger is released, the operation switch 11 is shielded by the hook-shaped portion 15a of the shielding lever 15.

As shown in FIG. 4, when the outer diameter of the mounting portion 20a of the hydraulic accessory tool 20 is small, the insulating holder of the present invention can be mounted by mounting a mounting adapter 21 to the mounting portion 20a. Mounting adapter 21
Are formed in two stages according to the inner diameter of the mounting portion 20a and the outer shape in accordance with the inner diameter of the reinforcing metal fitting 9 of the insulating holder, and are fixed to the mounting portion 20a of the hydraulic accessory tool 20 with a fixing screw (not shown). A groove 22 is provided around the large diameter portion, and a plurality of small holes 23 are formed at predetermined positions of the groove 22. On the other hand, a ball plunger 24 capable of engaging with the small hole 23 and an index plunger 25 capable of inserting the distal end into the small hole 23 to be locked are attached to the peripheral edge of the insulating holder A corresponding to the concave groove 22. After the hydraulic tool 20 is connected to the hydraulic hose 3, the hydraulic tool 3 is pulled into the body 1, and while the knob 25 a of the index plunger 25 is being pulled up, the knob 2
By releasing 5a, index plunger 25 can be locked. Such a mounting adapter 21
With the use of a hydraulic tip tool, it is possible to attach a so-called one-touch type hydraulic tip tool. Also, with regard to various hydraulic tip tools having different outer diameters of the mounting portion, if such a mounting adapter is used, it is possible to use one mounting holder. Can be interchangeably mounted. Of course, it is also possible to fix with an ordinary fixing screw not using the index plunger 25.

[0014]

As is clear from the above description, according to the insulating holder of the present invention, each time the work is changed, the hydraulic tip tool is provided for each of the insulating holders including the hydraulic hose and the operation switch section, as in the prior art. Without replacing the same, only the necessary hydraulic tip tool can be replaced with the same insulating holder, and it can be easily mounted at the required angle suitable for the work, so that the effect of improving economy and workability is obtained. In addition, since the operation switch can be shielded by the shielding member when it is not necessary, the operation switch is not carelessly pressed during the operation, and the effect of improving the safety of the operation is obtained.

[Brief description of the drawings]

FIG. 1 is a side view of an insulating holder according to the present invention with a compressor attached.

FIG. 2 is an enlarged plan sectional view of the insulating holder of FIG. 1;

FIG. 3 is an enlarged sectional view taken along line III-III in FIG.

FIG. 4 is a plan sectional view of an insulating holder according to another embodiment to which a hydraulic tool is attached via a mounting adapter.

FIG. 5 is a side view of a conventional insulating holder to which a compressor is attached.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS A Insulation holder 1 Body 2 Grip 3 Hydraulic hose 4 Coupler 5 Compressor 6 Connection fitting 7 Fixing screw 8 Stopper 9 Reinforcement fitting 10 Conduit part 11 Operation switch 12 Cord 13 Outlet 14 Piston 15 Shielding lever 16 Spring 17 Screw 18, 19 Protrusion 20 Tip tool 21 Mounting adapter 22 Groove 23 Small hole 24 Ball plunger 25 Index plunger

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 3-19622 (JP, U) JP-A 2-87331 (JP, U) JP-A 4-102987 (JP, U) JP-A 6- 61473 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B25F 5/00 H02G 1/14 B23D 47/00 H01H 13/04

Claims (1)

(57) [Scope of request for utility model registration] 1. An insulating holder for a hydraulic power tool, comprising a hydraulic hose, an operation cord, and an operation switch, and connected to a hydraulic pump device, wherein the hydraulic hose has a distal end connected to the hydraulic power tool. The hydraulic hose includes a metal fitting, and is rotatably and rotatably inserted into a cylindrical insulating holder body provided with a grip. The insulating holder body has a fixture for the hydraulic accessory tool at a distal end thereof, and the hydraulic hose The hydraulic tool bit connected to the power tool is detachably fixed to the insulating holder body with the fixing tool with or without a mounting adapter, so that a plurality of hydraulic tool tools can be exchanged. The operation switch has a front
Is formed on the hook portion for shielding the operation switch, the rear mounting et al are pivotably to the grip, is constantly urged by a spring in a direction to shield the front surface of the front Symbol operation switch Tei
An insulating holder for a hydraulic tool bit, wherein a shielding member is attached.