JP2012174583A - Metal fitting for ground line - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a metal fitting for a ground line which allows grounding work to be carried out by a single-touch operation even in a narrow space without the use of any coupling members, such as bolts, nuts or tapping screws, or any tools, etc. used for them.SOLUTION: A pair of clamping parts 1 for clamping a plate surface of a grounding target plate P are formed of a conductive plate having elasticity. A claw 2 for scratching the surface of the grounding target plate P is protrudingly provided on either one or both of the clamping parts 1. At one open end of the clamping parts 1, a connection part 3 for connecting a ground line Q is formed by bending. At the open end of the clamping parts 1, an introduction part 4 for expanding the open end so as to introduce an end of the grounding target plate P is formed by bending. The claw 2 for scratching the surface of the grounding target plate P is protrudingly provided on the grounding target plate P side of the introduction part 4. A plurality of insert tab terminals 5 are formed on the connection part 3.

Description

  The present invention relates to a ground wire mounting bracket used when mounting a ground wire made of a grounded vinyl insulated wire or the like used for grounding work, and more particularly to a ground wire mounting bracket that can be easily mounted even in a narrow place.

  Conventionally, as a means for attaching a ground wire, for example, there is a means for opening a mounting hole in a grounded member having conductivity and fixing the ground wire using a bolt and a nut.

  The present applicant has previously proposed a ground wire mounting bracket that does not require drilling at a mounting position on a grounded member such as a construction material or a wire (Patent Document 1). This mounting bracket is provided with a clamping port for sandwiching the construction material and metal fittings in the square tube-shaped metal fitting body. It is a structure to connect the ground wire.

  On the other hand, for grounding work in a small space such as the grounding work for solar cell arrays, the grounding wire can be directly attached to the grounded member with a tapping screw, or a metal plate instead of the grounding wire can be directly attached with a tapping screw. Has been done.

Japanese Utility Model Publication No. 6-22936

  For grounding work where the work space is limited, such as grounding work for solar cell arrays, mounting holes are drilled like conventional mounting brackets, and bolts and nuts are used to secure the ground wire. This is an extremely difficult task.

  Further, the mounting bracket of Patent Document 1 that does not require drilling is used when a ground wire is attached to a construction material such as a steel frame or a wire in a tunnel as a main grounded member. Therefore, since the size of the mounting bracket itself is large and bulky, it cannot be used for grounding work in a limited space.

  Furthermore, in the grounding work of the solar cell array, in addition to the small grounding space, the environment of the installation work is also harsh, for example, the grounding is carried out to the lower surface of the solar cell array installed on the inclined folded roof. Yes. For this reason, when attaching a ground wire or a metal plate with a tapping screw, the tapping screw is often dropped. Moreover, recent solar cell array platforms are required to be lighter and simpler, the working space tends to become increasingly narrower, and the difficulty of mounting is also increasing.

  Therefore, the present invention has been created to solve the above-mentioned problems, and it is possible to perform a grounding work in one space even in a narrow space without using any connecting members such as bolts, nuts, and tapping screws or tools used for these. The purpose is to provide a ground wire mounting bracket.

In order to achieve the above object, the first means in the present invention is a ground wire mounting bracket for electrically connecting the ground wire Q to the grounded plate material P having conductivity,
A pair of sandwiching portions 1 that are inserted from the plate body end portion of the grounded plate material P with an elastic conductive material and sandwich the plate surface are integrally formed,
A nail 2 for scratching the surface of the ground plate P is provided on either one or both of the sandwiching portions 1 and a connecting portion 3 for connecting the ground wire Q to one open end of the sandwiching portion 1. Is formed by bending.

  The second means includes an introduction portion 4 that expands the open end portion and introduces the end portion of the grounded plate material P to the open end portion of the sandwiching portion 1 where the connecting portion 3 is not formed. In addition to being bent, the grounded plate material P of the introduction part 4 is provided with the claws 2 protruding so as to damage the surface of the grounded plate material P.

  A third means is a means for solving the problem that a plurality of insertion tab terminals 5 are formed in the connecting portion 3 and an insertion type connection terminal Q1 is provided in the ground wire Q.

  According to claim 1 of the present invention, a pair of sandwiching portions 1 that are inserted from the end of the grounded plate material P and sandwich the plate surface are formed, and either one or both of the sandwiched portions 1 are grounded. The nail | claw 2 which damages the surface of the board | plate material P is projected, and the connection part 3 which connects the earth wire Q to one open end part of this clamping part 1 is bent and formed, so that the clamping part 1 can be used even in a narrow space. The grounding work can be completed simply by sandwiching the grounded plate P. Therefore, the grounding work can be performed with one touch without using any connecting members such as bolts, nuts, and tapping screws, and tools used for these.

  Further, according to claim 2, the open end portion of the sandwiched portion 1 is bent to form the introduction portion 4 that expands the open end portion and introduces the end portion of the grounded plate material P. The mounting work of the part 1 becomes very easy. Moreover, since the grounding plate material P of the introduction part 4 projects the claw 2 that damages the surface of the grounded plate material P, the plate surface of the grounded plate material P can be effectively scratched.

  Since a plurality of insertion tab terminals 5 are formed in the connecting portion 3 as described in claim 3, the connecting operation of the ground wire Q provided with the insertion type connecting terminal Q1 can be easily performed. As shown in Fig. 3, grounding work can be easily performed even in a small space.

It is a perspective view which shows one Example of this invention. It is a side view which shows the use condition of this invention. (A) thru | or (d) are perspective views which show the other Example of the connection piece of this invention. It is the schematic which shows the example which uses this invention for a solar cell array. It is the schematic which shows the example which uses this invention for solar cell array installation construction.

  According to the present invention, the initial purpose of one-touch grounding work in a narrow space can be achieved without using any connecting members such as bolts, nuts, and tapping screws and tools used for these.

  Examples of the present invention will be described below. The mounting bracket of the present invention is an improvement of a grounding wire mounting bracket used when an earth wire made of a vinyl insulated wire for grounding or the like is electrically connected to a grounded plate material having conductivity.

  The mounting bracket of the present invention is integrally formed of a conductive plate material having elasticity such as a metal plate, and the plate body is bent to form a pair of sandwiching portions 1 (see FIG. 1). The sandwiching portion 1 is a member that is forcibly inserted from the end of the plate body of the grounded plate material P to sandwich the plate surface and is attached to the grounded plate material P with one touch. The sandwiching 1 in the illustrated example is formed by bending a metal plate. However, as long as the conductive material has elasticity, the sandwiching portion 1 is formed by bending not only the metal plate but also a hook or pipe. It is also possible.

  When inserting the sandwiched portion 1 into the end portion of the grounded plate material P, a claw 2 that damages the surface of the grounded plate material P is provided. When the rust or paint adheres to the surface of the ground plate P, the claw 2 removes the rust and ensures electrical connection. The claw 2 in the illustrated example has a cut at the side edge of one sandwiched portion 1, and the cut portion is bent to form a pair of acute-angled claw 2 (see FIG. 1). The number, shape, installation position, and the like of the claws 2 are not limited to the illustrated example, and can be formed in both of the sandwiching portions 1 or may be formed in the introduction portion 4 as described later.

  The introduction portion 4 is for expanding the open end portion into one open end portion of the sandwiching portion 1 to introduce the end portion of the grounded plate material P (see FIG. 2). In the embodiment, the introduction part 4 is bent and formed from one open end of the sandwiching part 1, and the grounded plate material P of this introduction part 4 is provided with a notch at the end of the sandwiching part 1 of the hook. The claw 2 that protrudes from the introduction portion 4 in the direction of the grounded plate material P is provided. And when it inserts in the edge part of the to-be-grounded board | plate material P from the introducing | transducing part 4, it is comprised so that the surface of the to-be-grounded board | plate material P may be damaged with the nail | claw 2 of the introducing | transducing part 4.

  Further, a connecting portion 3 for connecting the ground wire Q to the other open end of the sandwiching portion 1 is bent. The ground wire Q is connected to the connecting portion 3, and the connecting operation of the ground wire Q and the connecting portion 3 is not limited before and after the sandwiched portion 1 is attached to the grounded plate P.

  In the embodiment, a plurality of insertion tab terminals 5 are formed in the connecting portion 3. Then, by using the ground wire Q provided with the plug-in connection terminal Q1, it is possible to easily connect the ground wire Q even after the sandwiched portion 1 is attached to the ground plate P. In other words, the ground wire Q can be connected with one touch even after the sandwiched portion 1 is mounted on the grounded plate material P in a narrow place such as a grounding work of the solar cell array (see FIG. 4). Although not shown, it is possible to attach the ground wire Q to the grounded plate P in a state where the ground wire Q is connected to the connecting portion 3 in advance.

  In the illustrated connecting portion 3, three insertion tab terminals 5 are connected. This plug-in tab terminal 5 is used, for example, when installing solar cells without gaps, such as in the construction of installing a solar cell array, from the mounting bracket attached to one solar cell to the remaining three solar cells in the vicinity. Electrical connection can be achieved (see FIG. 5).

  Further, the shape and number of the insertion tab terminals 5 can be arbitrarily changed. An insertion tab terminal 5 shown in FIGS. 3A to 3D shows another embodiment of the insertion tab terminal 5. That is, an example in which the insertion tab terminal 5 having the same length is bent in the same direction as shown in (a), an example in which the length of the insertion tab terminal 5 is changed as shown in (b), and an insertion as shown in (c). An example in which the orientation of the tab terminal 5 is changed, and an example in which the tab terminal 5 is bent in the opposite direction to the embodiment as in (d). However, the selection of whether or not the insertion tab terminal 5 is provided in the connecting portion 3 is also arbitrary, and other connecting means can be provided in the connecting portion 3.

  In the embodiment of the present invention, the shape and configuration of the sandwiching portion 1, the claw 2, the connecting portion 3 and the introducing portion 4 or the combination of the ground wires Q to be connected using the present invention are not limited to the illustrated examples. Absent. The grounded plate material P to be sandwiched by the sandwiching portion 1 is not limited to the grounded plate material P, and a metal plate or the like is attached to another grounded material, and the metal plate or the like is sandwiched by the sandwiching portion 1. Is also possible.

P Grounded plate material Q Ground wire Q1 Insertion type connection terminal 1 Clamping part 2 Claw 3 Connection part 4 Introduction part 5 Insertion tab terminal

Claims (3)

  A ground wire mounting bracket for electrically connecting a ground wire to a grounded plate material having conductivity, and a pair of sandwiched plate surfaces inserted from a plate body end portion of the grounded plate material with a conductive material having elasticity A clamping part is formed integrally, and a claw that damages the surface of the grounded plate material is projected on one or both of the clamping parts, and a ground wire is connected to one open end of the clamping part. A ground wire mounting bracket, wherein the connecting portion is bent.   The open end portion of the sandwiched portion where the connecting portion is not formed is bent to form an open end portion for expanding the open end portion and introducing the end portion of the grounded plate material. 2. The grounding wire mounting bracket according to claim 1, wherein the grounding plate projects the claw that damages the surface of the grounded plate.   The ground wire mounting bracket according to claim 1, wherein a plurality of insertion tab terminals are formed in the connecting portion, and a plug-type connection terminal is provided on the ground wire.

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