Patent
   D859110
Priority
Feb 10 2017
Filed
Sep 07 2017
Issued
Sep 10 2019
Expiry
Sep 10 2034
Assg.orig
Entity
unknown
2
11
n/a
I claim the ornamental design for a wire-tensioning device for live-wire separating tool, as shown and described.

FIG. 1 is a front elevational view of a wire-tensioning device for live-wire separating tool, showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a perspective view thereof;

FIG. 8 is a reference perspective view showing a usage state;

FIG. 9 is an enlarged partial view of the portion designated 9-9′ in FIG. 3;

FIG. 10 is an enlarged partial view of the portion designated 10-10′ in FIG. 1; and,

FIG. 11 is a cross-sectional view taken along line 11-11 in FIG. 1, without showing the internal mechanism.

The broken line showings of the ends in the cross section views form no part of the claimed design. The broken line showings of the power lines, ropes, supports, etc. in FIG. 8 are provided for purposes of environment and form no part of the claimed design.

The present article, a wire-tensioning device for a live-wire separating tool, constitutes a part of the live-wire separating tool for separating cut wires from each other in overhead wiring work by non-power outage method.

In the present article, a rod can be telescopically extended/retracted from/into a cylinder by applying rotational force with a rotating tool through a rotating tool insertion hole shown in “REFERENCE PERSPECTIVE VIEW INDICATING A NAME OF EACH PART.”

In the non-power outage method, as illustrated in “REFERENCE PERSPECTIVE VIEW SHOWING A USAGE STATE,” the live-wire separating tool comprises the present article, and wire grippers respectively connected with locking tools provided on both ends of the present article through ropes. A wire of a power line is gripped by the two wire grippers, and the present article is telescopically shortened (i.e. the rod is telescopically retracted into the cylinder) with the rotating tool to loosen the wire between the two wire grippers. The loosened wire is cut into two and the cut wires are separated from each other with two respective wire supporters disposed on the cylinder in the opposite directions.

Miyazawa, Tomoharu

Patent Priority Assignee Title
D937648, Sep 03 2019 Rotating tool attachment
D987417, Oct 09 2020 QINGDAO CHANGHUAI MACHINERY CO., LTD. Anti-loosening wire puller
Patent Priority Assignee Title
4372429, Apr 07 1980 ATWOOD INDUSTRIES, INC Pneumatic spring with protective boot
6439552, Sep 11 1997 Central Japan Railway Company; Dengyo Incorporated; NHK Spring Co., Ltd. Overhead wire tensioning device
7191877, Nov 08 2004 THYSSENKRUPP BILSTEIN OF AMERICA, INC Fluid flow regulation of a vehicle shock absorber/damper
8672301, Jun 05 2008 NHK SPRING CO , LTD Overhead wire tension balancer device and device adapted to prevent lubricating oil being scattered, and used with the overhead wire tension balancer
8702072, Jun 10 2008 NHK SPRING CO , LTD Overhead wire tension balancer and waterproof cover for overhead wire tension balancer
9531178, Sep 25 2012 NHK SPRING CO , LTD Overhead wire tension balancer
20100289196,
20110253443,
D553545, Feb 08 2006 Ohlins Racing AB Shock absorber
JP2012213314,
JP8331723,
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Sep 07 2017NAGAKI SEIKI CO., LTD.(assignment on the face of the patent)
Sep 14 2017MIYAZAWA, TOMOHARUNAGAKI SEIKI CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0439360644 pdf
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