JPH065133U - Electric wire connector with insulation cover - Google Patents

Abstract

(57) [Summary] [Purpose] The upper and lower insulation covers cover the wire connector of the parent and branch wires with the upper and lower insulation covers, and loosen the tightening cap in a safe state where the conductive parts do not appear on the outer periphery. By further separating, the connecting portion of the electric wire can be visually checked, and the electric wire can be accurately and temporarily held, and after the tightening, it can be in an insulating and hermetically sealed state. [Structure] In an electric wire connector in which upper and lower pressing metal fittings 1 and 2 equipped with conductive metal fittings are tightened with bolts and nuts, an upper insulating cover 9 into which the upper pressing metal fitting 1 is inserted and a lower insulating cover 10 which covers the lower pressing metal fitting 2 are provided. Provided, lower insulation cover 1
0 is provided with an opening 11 and an anti-rotation metal fitting 12 which holds both sides of the holding metal fitting in association with the inside. A tightening cap 14 which is biased in the separating direction and has a nut 8 and which covers the lower insulating cover 10 is screwed onto the bolt 7.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This device temporarily fixes the parent wire and the branch wire between the upper and lower conductive metal fittings and tightens the wires.The wire connector is covered with the upper and lower insulating covers, and there is a gap between the upper and lower insulating covers to visually connect the wires. The present invention relates to an electric wire connector with an insulation cover that enables secure tightening while checking.

[0002]

[Prior art]

 An electric wire connector in which connecting wires are arranged in parallel, clamped from both sides by connecting metal fittings, and tightened with screws, divided into two split surfaces including the central axis of the insulated wire for safety and work efficiency in high places. Equipped with a cut-through blade body having a cut-through blade and a split insulation case body fitted on the outside of this cut-through blade body. There is known an insulated wire connector (Shokai 57-183676) in which a cut-through blade is tightened with bolts and nuts so that a cut-through blade cannot be easily inserted.

[0003]

[Problems to be solved by the device]

 In the connector described in the prior art, a rectangular tubular portion having a fitting relationship is formed on both sides of the main body of the insulating case so as to prevent the conductive portion inside from touching the worker. When inserting the wire between the cut-through blades for connecting the insulation case body by tightening the bolts and tightening the bolts by tightening the bolts, etc., the internal cut-through blades are hidden by the rectangular tubular part, so cut-throughs The operator cannot visually check the contact state between the blade and the wire, which causes an electric accident due to insufficient contact, and there is a risk of disconnection due to excessive insertion into the wire.

Further, since the insulating case body is directly covered on the outside of the upper and lower cut-through blade bodies, the upper cut-through blade body cannot move inside the upper case body, and therefore, when tightening electric wires with different diameters, the cut-through The blade body and the insulating case body are tilted, and the fit between the upper and lower insulating case bodies deteriorates, causing a structural problem.

The present invention is to provide a spring between the lower holding metal fitting and the lower insulating cover, of the upper and lower holding metal fittings provided with a conductive metal fitting, to urge the lower insulating cover away from the lower holding metal fitting and to cover the cover. Inside of the lower insulation cover is tiltable and is tightened from below the lower insulation cover with a tightening cap.When connecting the wires, lower the lower insulation cover and leave a space between the upper insulation covers to connect the wires. The operator visually confirms the connection part and tightens the wire to ensure the connection and ensure the electrical safety.Although the diameter of the connection wire is different, the lower holding metal fitting is It is to provide a wire connector with an insulating cover that allows the lower insulating cover to be tightened parallel to the upper insulating cover only by tilting.

[0006]

[Means for Solving the Problems]

 In this invention, upper and lower holding metal fittings 1 and 2 provided with conductive metal fittings 4 and 5 provided with grooves 3 and 3'for sandwiching a parent wire A and a branch wire B are made to face each other, and penetrate substantially in the center of these metal fittings. In the electric wire connector C in which the hole 7 is drilled, the bolt 7 is inserted, and the nut 8 is tightened, the upper insulating cover 9 for inserting and fixing the upper pressing metal fitting 1 and the lower insulating cover for covering the lower pressing metal fitting 2 are attached. 10 and the lower insulating cover 10 is provided with an opening 11 in the lower part and is internally provided with a non-rotating metal fitting 12 for holding both sides of the pressing metal fitting. The lower insulating cover is attached to the bolt 7 together with the non-rotating metal fitting 12. A spring 13 such as a conical spring is interposed between the lower press fitting 2 and the lower press fitting 2 to urge the lower insulating cover away from the upper insulating cover, and the lower press fitting 2 is tilted freely, and the nut 8 is attached. And has Note that a tightening cap 14 that can be put on the lower part of the lower insulating cover 10 is screwed into the bolt 7, and when the tightening cap 14 is tightened, the lower insulating cover 10 is pressed against the spring 13 so that the lower holding metal fitting is the upper pressing metal fitting. The upper and lower insulation covers can be fitted together by tightening the upper and lower insulation covers so that the connection state of the wires can be visually inspected and tightened. Can be fitted to the rim cover.

Further, the lower insulating cover 10 is provided with a detent metal fitting 12, and the detent pieces 12 a, 12 a on both sides of the detent metal fitting 12 are provided on both sides of a fixing metal fitting 15 provided on the conductive metal fitting 4 of the upper holding metal fitting 1. It can be slid by inserting it into the locking hole 16, and the anti-rotation piece can be engaged with the fixed metal fitting at a fixed descending position. When tightening with the tightening cap, the anti-rotation metal fitting regulates both sides of the holding metal fitting to tighten The cover and retainer do not rotate even when turned, and can be moved up and down only in the longitudinal direction of the tightening bolt.The upper and lower parts are locked together even if the tightening cap is removed, and they can be removed during work. Do not take it off.

[0008]

[Action]

 According to the electric wire connector with an insulating cover of the present invention, even if the connector is held by hand and a series of connection work is performed, the conductive portion is not touched by the hand, and when the tightening cap 14 is loosened, the spring is released. The lower insulating cover 10 is separated from the upper insulating cover 9 by the elastic force of 13 to open a wide space between the upper and lower insulating covers, and between the upper and lower pressing fittings 1 and 2 of the conductive fittings 4 and 5 between the grooves 3 and 3 '. When the electric wire A and the branch electric wire B are inserted, the electric wire is temporarily held between the conductive metal fittings by the pressing force of the spring 13, and as the tightening cap 14 is tightened, the lower insulating cover 10 is lifted up even if the connecting portion is not visible. By pressing 13 and holding the metal fittings 12 on both sides of the holding metal fitting with the detent metal fitting 12, the lower holding metal fitting is pressed against the upper holding metal fitting to securely connect the electric wire.

Further, since the anti-rotation metal fitting 12 is freely slidable in the locking hole 16 of the fixing metal fitting 15, when the tightening cap 14 is tightened or loosened, the lower insulating cover 10 has the anti-rotation metal fitting 12 with which the anti-rotation metal fitting 16 is engaged. Since it is guided to the upper side, there is no deviation from the upper insulating cover 9. Further, when the lower insulating cover 10 is lowered by the elastic force of the spring 13 by loosening the tightening cap 14, the upper end of the anti-rotation metal fitting 12 is locked with the locking hole 16 of the fixing metal fitting 15 with a constant stroke, and the lower insulating cover 10 is Since the rotation stopper metal fittings, springs, holding metal fittings, and conductive metal fittings are not pulled out, there is no danger of falling and it is safe.

[0010]

【Example】

 1 to 6, reference numerals 1 and 2 denote upper and lower pressing fittings, which are arcuate grooves 3 having different diameters suitable for holding the parent wire A and the branch electric wire B inside the pressing fittings 1 and 2, respectively. Conductive metal fittings 4 and 5 provided with 3'are overlapped and made to face each other, a through hole 6 is bored in the central portion of these metal fittings, a bolt 7 is inserted from above, and a nut 8 is tightened to tighten the conductive metal fittings 4, 5. The electric wire connector C is configured so that the electric wires A and B are sandwiched between the electric wires. Screws for fastening or unevenness are engraved in the grooves 3 and 3 '. In addition, the upper and lower holding metal fittings and the conductive metal fittings are tightly fitted so that they are not separated in the normal state. Although the wires A and B have different diameters in the embodiment, they may have the same diameter. The configuration of the electric wire connector C described above is known, but the characteristic configuration of the present invention is as follows.

Reference numerals 9 and 10 denote upper and lower insulating covers made of synthetic resin. One upper insulating cover 9 is a housing portion 17 into which the upper holding metal fitting 1 is inserted, and a head portion of a bolt 7 is provided substantially above the center of the housing portion 17. A concave hole 18 for inserting 7a is formed, and the other lower insulating cover 10 forms an accommodating portion 19 for accommodating the lower pressing metal fitting 2, the rotation stopping metal fitting 12, the spring 13, and the like, and the accommodating portion 19 thereof. An opening 11 for inserting a bolt 7 through which a nut 8 of a tightening cap 14 is screwed and an annular projection 20 for covering the tightening cap 14 are formed in the lower part of the. The recessed hole 18 is a hexagonal hole that matches the head 7a of the bolt 7 so that the bolt does not rotate in the recessed hole. Reference numeral 42 denotes a tightening holding portion provided on the upper portion of the upper insulating cover 10, and is a holding portion for a tightening tool for tightening after temporarily tightening the tightening cap 14.

Fitting holes 21 are provided on the opposite surfaces of the upper and lower insulating covers 9 and 10 at the peripheral edges on the side of the upper insulating cover 9, and a fitting portion 22 is projectingly provided on the peripheral edges on the side of the lower insulating cover 10. It is preferable that the fitting portion 22 is formed in a tapered shape so that the fitting portion 22 can be easily fitted inside the fitting hole 21 of the upper insulating cover 9.

In addition, concave insertion portions 23 and 24 for inserting electric wires are formed opposite to each other on both sides of the upper and lower insulating covers 9 and 10, and the insertion openings 25 and 26 of the electric wires A and B are formed on both sides in the concave insertion portions. A thin and elastic comb-like shield piece 27 for covering the outer circumference of the electric wire to be inserted is formed in the insertion ports 25 and 26.

As shown in FIG. 7, reference numeral 12 denotes a U-shaped metal fitting for holding a holding metal fitting on both sides of the holding metal fitting, which has a through hole 28 for the bolt 7 at the center of the lower portion thereof and has long turning holding pieces 12a on both sides. The upper end of 12a is bent outward to provide locking portions 12b, 12b, and a fixing metal fitting 15 provided on the conductive metal fitting 5 of the upper presser foot tool 1 is provided with a locking hole 16 at a distance slightly narrower than the distance between the both locking portions. , 16 are provided, and the anti-rotation pieces 12a, 12a are inserted into the locking hole 16 by sandwiching them by utilizing elasticity, so that the anti-rotation metal fitting 12 can be locked. 16 can be lifted up and down, and the locking portion 12b is locked at the fixed metal fitting 15 at a certain lowered position, the upper and lower parts are integrally locked, and there is no risk of falling even if the tightening cap 14 is removed.

The anti-rotation fitting 12 is provided with mounting holes 29 on both sides thereof, and is fitted and fixed to a projection 30 provided on the inner surface of the lower wall of the housing portion 19 of the lower insulating cover 10 by welding. The mounting method of the rotation stopper metal fitting 12 is not limited to the structure of the embodiment, and for example, the mounting hole 29 may be screwed, or the rotation stopper metal fitting 12 may be fixed by the spring 13 without being fixed to the lower insulating cover 10. Only pressure contact is enough.

Further, the fixing metal fitting 15 is a plate-like body and is provided with an insertion hole 31 for the bolt 7 in the center, and on both sides is formed a locking hole 16 into which the locking portion 12b of the upper end of the rotation stopping metal fitting 12 can be inserted. Further, the mounting holes 32 are provided at both ends, and the mounting holes 32 at both ends are fitted into the protrusions 34 of the mounting portion in the upper insulating cover 9 by inserting the mounting holes 32 into the groove holes 33 provided between the upper pressing metal fitting 1 and the conductive metal fitting 5. It is welded and fixed together. The fixing member 15 may be attached by fixing the attachment hole 32 with a screw or the like.

Reference numeral 13 denotes a spring, which is interposed between the lower presser fitting 2 and the spring receiver 35 and the spring washer 36 of the lower insulating cover 10 on the anti-rotation metal fitting 12 side so that the lower insulating cover 10 is attached in a direction away from the lower presser fitting 2. The lower pressing member 2 is tilted freely while being biased. The spring 13 is a conical spring that can be folded when pressed.

Reference numeral 14 denotes a tightening cap, which is fixed to the entrance step portion 38 of the recessed hole 37 with a nut 8 which is screwed into the bolt 7, and which is attached to the annular protrusion 20 of the lower insulating cover 10 at the upper peripheral edge thereof. The part 39 is formed and the tightening head 40 is a hexagonal head.

As shown in FIG. 1, the tightening cap 14 is provided with a constant torque cap 41 that is destroyed when the tightening head 40 has a constant tightening force and cannot be tightened. Can be prevented.

A method of providing the electric wire connector C on the upper and lower insulating covers 9 and 10 will be described. The head of the bolt 7 of the electric wire connector C is inserted into the concave hole 18 of the upper insulating cover 9 and the upper presser foot tool 1 is provided. The fixing metal fitting 15 inserted between the holding metal fitting and the conductive metal fitting is fixed to the protrusion 34 of the upper insulating cover by welding, and the lower pressing metal fitting 2 is prevented from rotating inside the lower insulating cover 10. The spring 13 is provided between the spring receiver 35 and the spring washer 36 between the metal fitting 12 and the lower pressing metal fitting 2, and the nut 8 of the tightening cap 14 is screwed into the bolt 7 to fix the annular covering portion 39 of the cap 14. The lower insulating cover 10 is covered with the annular protrusion 20.

Since the present invention has the configuration described above, by loosening the tightening cap 14 and lowering the lower insulating cover 10 from the lower pressing metal fitting 2 by the spring pressure of the spring 13, the lower pressing metal fitting 2 of the electric wire connector C is in the cover. Then, it becomes free to tilt against the spring 13, and the shield wire 27 of the insertion ports 25 and 26 of the wire insertion portions 23 and 24 on both sides of the parent electric wire A and the branch electric wire B whose coating is peeled off is opened. The upper and lower pressing fittings 1, 2 are opened to open the conductive fittings 4, 5 against the spring 13, and the electric wires A, B are inserted and held in the grooves 3, 3'to temporarily hold them.

After that, the tightening cap 14 is tightened, and the lower insulating cover 10 is raised by abutting against the lower part of the lower insulating cover 10 and pushing it up. The wire can be securely clamped by pressing against.

Although the lower pressing member 2 tilts in the lower insulating cover 10 when an electric wire having a different diameter is inserted, the lower insulating cover 10 does not tilt but always moves up and down in parallel with the upper insulating cover 9.

Since the anti-rotation pieces 12a, 12a of the anti-rotation metal fitting 12 can be freely slidably locked in the locking holes 16 of the fixing metal fitting 15 provided in the upper pressing metal fitting 1, when the tightening cap 14 is tightened, the lower insulating The anti-rotation metal fitting 12 in the cover 10 is vertically guided by the locking hole 16 to accurately hold both sides of the pressing metal fitting and loosen the tightening cap 14 to lower the lower insulating cover 10 and the anti-rotation metal fitting 12. Then, the locking portion 12b hits the fixing metal fitting 15 at a fixed position to be received and not pulled out. To remove the lower insulating cover 10, the anti-rotation metal fitting 12 is clamped and removed through the locking hole 16 of the fixing metal fitting.

[0025]

[Effect of device]

 In this device, the upper and lower insulating covers of the electric wire connector are opened by loosening the tightening cap so that the location where the electric wire of the internal connector is clamped can be directly viewed from the outside. It is easy and it can be confirmed that the stripped portion of the wire is securely fastened between the conductive metal fittings.Therefore, even if the connection part cannot be seen by tightening, the positional relationship between the metal fitting and the wire can be confirmed. You can keep it and tighten it.

Further, when the tightening cap is loosened, the lower presser fitting can freely tilt within the lower insulating cover against the spring, so that wires of different diameters can be easily inserted. Since the cover does not tilt and can be moved up and down with respect to the upper insulating cover while keeping horizontal, the appearance is good, and the upper and lower insulating covers can be fitted to each other by being properly aligned, and the waterproof property can be improved.

When connecting the parent wire and the branch wire, the conductive part is not exposed on the outer periphery, so you can hold the insulating part with your hands to remove, tighten, and loosen the wire, and tighten the tightening cap to tighten the spring. Since the wire is clamped between the upper and lower clamps and the lower insulating cover is raised to match the upper insulating cover, the wire connection part can be insulated and protected, which can be done easily, reliably, and quickly. When the tightening is completed, the outer circumference is surrounded by an insulating cover and there is no risk of electrical accidents, providing a waterproof effect.

Since the anti-rotation metal fitting has a structure in which it can be freely slidably locked in the locking hole of the fixing metal fitting of the upper presser, the lower insulating cover and the anti-rotation metal fitting can be vertically vertically moved accurately, and It is possible to prevent the lower insulating cover from being pulled out from the bolt by receiving it at a certain lowered position. Even if the tightening cap is removed during work, there is no risk of parts falling and it is safe.

Therefore, it is possible to safely and efficiently connect the parent electric wire and the branch electric wire at a high place on the electric pole.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view of an electric wire connector with an insulating cover of the present invention when a tightening cap is loosened.

FIG. 2 is a vertical sectional side view of the same.

FIG. 3 is a vertical cross-sectional front view when tightening a tightening cap.

FIG. 4 is a front view of the same.

FIG. 5 is a bottom view of an upper insulating cover provided with an upper pressing member.

FIG. 6 is a plan view of a lower insulating cover provided with a lower pressing member.

FIG. 7 is a perspective view of a rotation stopper fitting and a fixing fitting.

[Explanation of symbols]

 A parent wire B branch wire C wire connector 1 upper holding fitting 2 lower holding fitting 3 groove 3'groove 4 conductive fitting 5 conductive fitting 6 through hole 7 bolt 8 nut 9 upper insulating cover 10 lower insulating cover 11 opening 12 turning stopper 12a Anti-rotation piece 13 Spring 14 Tightening cap 15 Fixing metal fitting 16 Locking hole

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Kazuya Matsuoka 1067-3 Kuwabe, Kuwana City, Mie Prefecture

Claims (2)

[Scope of utility model registration request] 1. A conductive metal fitting (4) provided with grooves (3) and (3 ') for holding a parent wire (A) and a branch wire (B).
The upper and lower holding metal fittings (1) and (2) provided with (5) are made to face each other, a through hole (6) is bored in a substantially central portion of these metal fittings, and a bolt (7) is inserted into the nut (8). In the electric wire connector (C), which is adapted to be tightened with, an upper insulating cover (9) for inserting and fixing the upper pressing metal fitting (1) and a lower insulating cover (10) for covering the lower pressing metal fitting (2) are provided. The lower insulating cover (10) is provided with an opening (11) in the lower part and an anti-rotation metal fitting (1) for holding both sides of the pressing metal fitting inside.
2) is associated therewith, the lower insulating cover (10) is inserted into the bolt (7) together with the rotation stopper metal fitting (12), and the spring (13) is interposed between the lower pressing metal fitting (2) and the lower pressing metal fitting (2). The insulating cover is biased from the lower holding metal fitting (2) in a separating direction, the lower holding metal fitting (2) is tiltably provided, the nut (8) is provided inside, and the lower insulating cover (1) is provided.
0), a tightening cap (14) which can be placed over the lower part is screwed into the bolt (7), and the lower insulating cover (10) is pressed against the spring (13) when tightening the tightening cap (14). An electric wire connector with an insulating cover, characterized in that the pressing metal fitting is pressed against the upper pressing metal fitting and the upper and lower insulating covers can be fitted together. 2. An anti-rotation metal fitting (12) which is fixed to the lower insulating cover (10) by a suitable means.
Fixing metal fittings (15) provided with anti-rotation pieces (12a), (12a) on both sides of the upper part of the metal fitting (4) of the upper pressing metal fitting (1).
2. The electric wire connector with an insulating cover according to claim 1, wherein the wire stopper is capable of being slidably inserted into the locking holes (16) on both sides of the wire, and the detent piece can be locked to the fixing metal fitting at a constant lowered position.