JP3059094U - Grounding hardware on track rails - Google Patents

Abstract

(57) [Summary] The object of the present invention is to develop a grounding hardware for a track rail that can be extremely easily operated. PROBLEM TO BE SOLVED: To provide a tool body 1 which is a strip material having an appropriate thickness, has good conductivity, and has a folded part 1a at one end, and a male screw on the outer periphery near the other end of the tool body. A stopper 2 is fixed to the device main body at a metal fitting for grounding on a track rail to which a tightening handle 3 is screwed, and a stopper 2 is inserted into the pillar, and a holding member 6 is inserted into the pillar. On the side surface, a blocking piece 4a is provided for blocking the rotation range of the holding tool that rotates in synchronization with the rotation of the tightening handle within a certain range, and a spring 5 is press-fitted between the stopper and the holding tool to press the holding piece. One end of the tool is bent slightly upward so as to fit the lower end inclined portion of the track rail X, and the other end is bent slightly downward so as to be locked by the blocking piece. Track rail Grounding hardware.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 This invention relates to a metal fitting for grounding on a track rail.

[0002]

[Prior art]

 Conventionally, when performing work such as construction of railway overhead lines, grounding work has been performed to prevent the prevention of electric shock and to ensure the safety of workers involved in the work.

[0003] The grounding work is performed by connecting a power line in a power failure state and a track rail as a grounding place with a grounding wire to prevent a person from encountering an accident such as an electric shock. Even if power transmission occurs, the electric circuit is cut off, and as a result, worker safety is ensured.

[0004] An instrument conventionally used is a band material having an appropriate thickness, which has good conductivity and has an instrument body having a folded portion at one end on a track rail (X) and a lower portion on a track rail (X). Insert the retainer into the column with male threads near the other end of the instrument body, and fasten it with a clamping handle through the retainer. Was brought into contact with the track rail, and the electric circuit was cut off by the ground wire provided at the other end of the instrument body.

[0005] However, in this device, the holding tool is also tightened with a tightening handle so that one end of the holding tool is securely in contact with the track rail, and the other end of the holding tool is securely positioned on the upper surface of the tool body. It was necessary to make sure it was located on the main unit.

[0006] As a result, most of the work is performed at night due to limited time, so that it is necessary to shorten the time required for the grounding work. Also, when tightening the tightening handle, it is necessary to hold down the holding tool so that it does not move, and the work was complicated.

[0007]

[Problems to be solved by the invention]

 Therefore, the idea is to develop grounding hardware for track rails that can be extremely easily operated.

[0008]

[Means for Solving the Problems]

 Therefore, in this invention, the grounding hardware of the conventional track rail is improved and improved, a stopper is provided on the fixture body, the holding tool is prevented from rotating more than necessary by the rotation of the tightening handle, and it is inserted into the column. It is made of metal fittings for grounding on track rails, which secures the reliability and speed of work by interposing a spring that holds down the work, and also ensures the safety of workers during work.

[0009]

[Embodiment of the invention]

 Therefore, an embodiment of the present invention will be described. An apparatus main body (1), which is a strip material having an appropriate thickness, has good conductivity, and has a folded portion (1a) at one end, is provided. In the vicinity of the other end of the main body (1), a support (2) having an external thread on the outer periphery is planted, and a holding tool (6) is inserted through the support (2), and a tightening handle (3) is attached. In the grounding metal fittings of the threaded track rail, the stopper (4) is fixed to the tool body (1), and the stopper is provided with a blocking piece (4a) that rises on the side face, and is synchronized with the rotation of the tightening handle. A stopper (4) is provided to prevent the rotation range of the holding member (6) rotating in a predetermined range (90 degrees), and a spring (5) is provided between the stopper (4) and the holding member (6). ), And one end of the retainer (6) is A track characterized by being bent slightly upward so as to fit the lower end inclined portion of the rail (X), and bent slightly downward so that the other end is locked by the blocking piece (4a). It consists of grounding hardware on the rail.

[0010] In addition, (7) is a ground wire, and one or more protruding pieces (6a) for ensuring contact with the track rail (X) are provided near the tip of the holding member (6). The size of the hole (6b) inserted into the support (2) of the retainer (6) is larger than the diameter of the support (2), and the spring (5) press-fitted into the support (2). And the tightening handle (3) screwed to the column (2) are in contact with each other via a washer (5a).

When using the present invention, first, the side of the instrument body (1) having the folded portion (1a) is inserted under the track rail (X), and the lower end of the track rail (X) is inserted. When the part is sandwiched between the folded parts (1a) and the instrument body is pulled forward, the retainer (6) is urged by the spring (5) and is positioned on the lower end inclined part of the track rail. When the tightening handle (3) is rotated, the holding member (6) rotates in synchronization with the rotation of the tightening handle (3), but the stopper piece (4) of the stopper (4) fixed to the instrument body (1). 4a) is prevented from hitting the surface A, does not rotate any more, and the clamp (6) is fixed to the lower end inclined portion of the track rail (X) by further rotating the tightening handle (3). And rotate the rotating handle (3) in reverse. In this case, the stopper piece (4a) hits the B end and is blocked. As a result, the angle at which the presser (6) is synchronized with the rotary handle (3) is only 90 degrees.

[0012]

[Effect of the invention]

 According to this invention, the blocking piece (4a) of the stopper (4) fixed to the instrument body (1) makes the rotation of the holding tool (6) synchronized with the rotation of the tightening handle (3) within a range of 90 degrees. The setting or resetting can be quickly performed by preventing the pressing, and the holding member (6) is provided on the column implanted in the instrument body (1) with the spring (5) interposed therebetween. ) Is biased, the retainer naturally floats, so there is no need to lift it by hand and place it on the lower slope of the track rail as in the past, and the grounding work can be performed reliably and quickly. It has an extremely beneficial effect, for example, it can be performed at any time.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view showing an embodiment of the present invention.

FIG. 2 is a partially cutaway side view showing a use state of the present invention.

FIG. 3 is an explanatory view of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Instrument main body 1a Folded part 2 Prop 3 Tightening handle 4 Stopper 4a Blocking piece 5 Spring 5a Washer 6 Presser 6a Projection piece 6b Hole 7 Ground wire X Track rail

Claims (1)

[Utility model registration claims] 1. A band material having an appropriate thickness, having good conductivity, provided with a tool body (1) having a folded part (1a) at one end, and the other end of the tool body (1). Near the department,
A pillar (2) having an external thread on its outer circumference is implanted, a holding tool (6) is inserted through the pillar (2), and a grounding metal fitting on a track rail to which a tightening handle (3) is screwed is used. Stopper (4) on the instrument body (1)
And a stopper piece (4a) provided on a side surface of the stopper for preventing a range of rotation of a presser that rotates in synchronization with the rotation of the tightening handle (3) within a certain range,
A spring (6) is press-fitted between the stopper (4) and the retainer (6), and one end of the retainer (6) is slightly upward so as to fit the lower end inclined portion of the track rail (X). A grounding metal fitting for a track rail, wherein the metal fitting is bent slightly downward so that the other end is locked to the blocking piece (4a).