JP2863964B2 - Non-circular wire gripper - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gripping portion for a non-circular cross-section electric wire for gripping and fixing a non-circular cross-section electric wire such as a finned electric wire (or a protruding electric wire or a protruding electric wire).

[0002]

2. Description of the Related Art In recent years, non-circular electric wires having a non-circular cross section, such as finned electric wires, have been widely used for the purpose of reducing wind noise and snow accumulation on electric wires.

In gripping and fixing such a non-circular electric wire having a non-circular cross section, the fin portion (or protrusion) of the electric wire in which the inner surface of the grip portion is a convex portion because the inner peripheral shape of the conventional grip portion is substantially circular in cross section. Abuts only on the outer peripheral surface of the part, and a sufficient gripping effect cannot be expected.

[0004] Therefore, in the non-circular electric wire having a cross-section, the recesses on the outer peripheral surface other than the fins are filled with a preformed rod or the like.
Japanese Patent Application Laid-Open No. 60-5718 discloses a technique in which a substantially circular cross section is formed by the outer peripheral surface of the fin and the outer surface of the preformed rod, and the inner peripheral shape is gripped and fixed by a grip having a substantially circular inner cross section. Proposed. In addition, a technique has been proposed in which a fin, which is an obstacle to grasping, is scraped off.

[0005] By using such a technique, a non-circular electric wire having a cross section can be gripped on the entire inner peripheral surface of a grip portion having a substantially circular cross section, and a sufficient gripping effect can be obtained.

[0006]

In the prior art as described above, the work or fin for attaching a preformed rod or the like to a non-circular cross-section electric wire in a high place and unstable place such as a so-called space ride is required. The work of shaving off is required, and the work of holding and fixing the electric wire with the holding portion is complicated accordingly. In addition, there is a risk that components such as the preformed rod may fall during the operation. Furthermore, without using a member that fills the concave portion of the outer peripheral surface with respect to the non-circular electric wire with a cross section, and without shaving off the fin, the inner peripheral shape is gripped and fixed by the gripping portion having a substantially circular cross section, so that the electric wire is fixed. May be insufficient.

The present invention has been made to further improve such a conventional technique. By rotating a cylindrical collar about an axis so as to correspond to the outer peripheral shape of a non-circular electric wire having a cross section, a cross section formed by a grip portion is provided. An object of the present invention is to provide a gripping portion for a non-circular electric wire in which a non-circular electric wire can be easily gripped and fixed and does not drop parts during work.

[0008]

In order to achieve the above object, a gripping portion for a non-circular electric wire having a cross-section according to the present invention is provided on a gripping portion main body provided with a semi-cylindrical groove, and a semicircle opposed to the groove. A holding arm provided with a columnar groove is hinged so that a gripping space having a substantially circular cross section formed by the two grooves can be freely opened and closed, and has a circular cross section that fits into the gripping space in a closed state. The cylindrical collar having an outer peripheral shape and having an inner peripheral shape fitted into the outer peripheral shape of the non-circular cross-section electric wire is divided into two in the axial direction, and the inner peripheral portion is hinged so that it can be freely opened and closed. In the open state, the cylindrical collar is rotatable about an axis in the holding space, and is connected to the holding body or at least one of the holding arms by connecting means so as to limit separation, and the cylindrical collar is Holds the non-circular cross-section electric wire with the gripper body via It is configured to tighten the grip by chromatography arm.

[0009]

[Operation] Separation of the tubular collar from the gripper body or the holding arm is restricted by the connecting means. The round electric wire is not held by the holding portion. And since a cylindrical collar can rotate around an axis | shaft, a cylindrical collar can be suitably rotated and arrange | positioned according to the cross-sectional shape of a non-circular electric wire in cross section. Thus, the non-circular electric wire with a cross section can be gripped over the entire outer periphery.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a side view of one embodiment of a gripping portion for a non-circular electric wire of the present invention before tightening, and FIG.
FIG. 3 is a side view after the fastening of FIG. 1, FIG. 3 is a front view of the tubular collar in FIG. 1, and FIG.
FIG. 5 is a sectional view taken along line A of FIG. 3, FIG. 5 is a sectional view taken along the line AA of FIG. 3, and FIG.
FIG. 7 is an external perspective view in which the guide member according to the embodiment of the present invention shown in FIG. 1 is pivotally mounted together with the hinge of the holding portion main body and the holding arm, and FIG. 7 is an external perspective view of the guide member in FIG.

In the figure, a semi-cylindrical groove 12 is provided in the gripping body 10 and a holding arm 14 is formed on one side of the groove 12.
Are swingably hinged by the pins 16. Presser arm 1
The semi-cylindrical groove 18 is provided in the groove 4 in opposition to the groove 12, and the two grooves 12, 18 form a gripping space having a substantially circular cross section. The holding arm 14 is swung so as to close the holding space, and the T-bolt 20 and the coil spring 22
The electric wire in the gripping space is gripped by tightening the holding arm 14 to the gripping body 10 with an appropriate elasticity in the same manner as the technique disclosed in Japanese Utility Model Publication No. 57-57462. Here, a grip portion is constituted by the grip portion main body 10, the holding arm 14, the T-bolt 20, the coil spring 22, and the like.

The cylindrical collar 24 has a circular cross section that can fit into the gripping space whose outer peripheral shape is closed, and has flanges 26, 26 with large outer diameters formed at both axial ends.
The inner peripheral shape of the cylindrical collar 24 is the shape of the electric wire 2 having a non-circular cross section.
8. Fin grooves 32, 32 into which fin portions 30, 30 can fit.
Is formed so as to wrap the entire outer periphery of the non-circular electric wire 28 in cross section. Further, the cylindrical collar 24 is divided into two parts symmetrically in the axial direction, and is hinged at one end so as to be swingable by a pin 34. Further, the band-like member 36 extends around this hinged part around the axis.
Are arranged, and both ends thereof are fixed to the divided cylindrical collars 24, respectively. The belt-shaped member 36 may be made of any material such as nylon or metal as long as it has flexibility, but C is a material that elastically urges the cylindrical collar 24 in the closing direction.
A U-shaped spring member is more preferred.

A guide member 4 having a guide groove 38
0 is hinged between the gripper body 10 and the holding arm 14,
The belt-shaped member 36 is axially mounted by the pin 16 and is engaged with the guide groove 38 so as to be movable around the axis in the length direction.
In addition, corresponding to the band-shaped member 36, the clearance grooves 4 around the axis are formed on the inner peripheral surfaces of the grooves 12 and 18 of the gripper body 10 and the holding arm 14.
2, 42 are formed. Here, the connecting means is formed by the belt-shaped member 36 and the guide member 40.

In such a configuration, the electric wire 28 having a non-circular cross section
The cylindrical collar 24 is rotated around the axis so as to correspond to the fins 30 of the non-circular electric wire 2.
8 is closed. Further, the cylindrical collar 24 is positioned in the holding space, the holding arm 14 is swung closed, and the clamp arm 14 is tightened by the T-bolt 20 and the coil spring 22 to hold and fix the non-circular electric wire 28 with the holding portion.

By interposing the cylindrical collar 24, the non-circular cross-section electric wire 28 can be gripped over the entire outer periphery by the gripping portion having a gripping space having a substantially circular cross-section, and secure gripping and fixing can be achieved. Further, the tubular collar 24 can be rotated around the axis by the band-shaped member 36, but the separation is limited, so that there is no danger of dropping parts during the work. Further, there is no possibility that the non-circular electric wire having a non-circular cross-section is gripped and fixed by the gripping portion without interposing the cylindrical collar 24. Further, the flanges 26, 26 provided at both ends in the axial direction of the cylindrical collar 24 restrict the axial movement of the cylindrical collar 24 itself with respect to the gripping portion, and do not shift in the axial direction. If the band-shaped member 34 elastically urges in the direction to close the cylindrical collar 24, the non-circular electric wire 28
It is easy to cover the cylindrical collar 24 with the cover.

Next, another embodiment of the present invention will be described with reference to FIGS. FIG. 8 is a side view of another embodiment of the gripping portion for a non-circular electric wire of the present invention before tightening, and FIG. 9 is a front view of the cylindrical collar in FIG.
FIG. 10 is a side view of FIG. 9, and FIG.
FIG. 12 is an external perspective view of a gripper main body provided with a dovetail groove and a holding arm provided with a U-shaped cross-sectional groove according to another embodiment of the present invention shown in FIG. 8 to 1
In FIG. 2, members that are the same as or equivalent to those in FIGS. 1 to 7 are given the same reference numerals, and redundant description is omitted.

In the figure, a dovetail groove 50 around the axis is formed on the inner peripheral surface of the semi-cylindrical groove 12 of the gripper body 10. On the inner peripheral surface of the semi-cylindrical groove 18 of the holding arm 14, a U-shaped groove 52 is formed around the axis on an extension of the dovetail groove 50.

The cylindrical collar 24 is divided into two parts in the axial direction and hinged with the pin 32.
A dovetail-shaped projection 54 is formed on one of the four divided outer circumferences so as to be movably fitted around the dovetail groove 50 around the axis, and a U-shaped cross-section projection 56 is formed on the other outer circumference. The U-shaped cross section 56 has a width and a height that can be inserted into the dovetail groove 50 without a large gap in the width direction.
Has a width and a depth that allow the dovetail projection 54 to be inserted without a large gap in the width direction. Here, the connecting means is formed by the dovetail groove 50 and the dovetail projection 54.

In this configuration, the dovetail collar 54 of the cylindrical collar 24 is fitted into the dovetail groove 50 of the grip body 10 so that the cylindrical collar 24 swings around the axis of the groove 12 of the grip body 10. Freely connected. Therefore, the tubular collar 24 is appropriately rotated around the axis so that the grooves 32 correspond to the fins 30 of the non-circular electric wire 28, the tubular collar 24 is closed, and the holding arm 14 is further swung. Move and close,
The T-bolt 20 and the coil spring 22 are tightened, and the electric wire 28 having a non-circular cross section is gripped and fixed by the gripper with the cylindrical collar 24 interposed therebetween.

By fitting the dovetail groove 50 and the dovetail projection 54, the cylindrical collar 24 can swing around the axis in the groove 12 of the gripper body 10, but is separated if it is not rotated more than a predetermined angle. Never. Therefore, similarly to the embodiment shown in FIGS. 1 to 7, the non-circular electric wire 28 is gripped and fixed by the grip portion without dropping the tubular collar 24 or interposing the tubular collar 24 during the work. There is no danger. In addition, the dovetail projection 5 is formed in the dovetail groove 50 or the U-shaped groove 52.
4 is inserted, and the U-shaped protrusion 56 is inserted into the dovetail groove 50, thereby preventing the cylindrical collar 24 from being displaced in the axial direction.

The connecting means is not limited to the above embodiment, and can be rotated around the axis so that the cylindrical collar 24 can correspond to the outer peripheral shape of the non-circular electric wire 28 in cross section. Any structure may be used as long as the mechanism is restricted. For example, one end of the band-shaped member is fixed to the cylindrical collar 24, and the other end is made to pass through a through hole formed in the groove 12 of the grip body 10, and an enlarged portion is provided at the end to prevent the collar from coming off. The belt-shaped member may be appropriately wound around the outer peripheral surface as necessary by rotating around the axis 24, and an extra portion may be drawn out from the through hole. Alternatively, engagement members having a U-shaped cross section may be provided at both ends of the cylindrical collar 24, and rails with which these engagement members may engage may be provided at both axial end surfaces of the groove 12 of the gripper body 10.

[0022]

As described above, since the gripping portion for a non-circular cross-section electric wire of the present invention is constituted, the following special effects can be obtained.

[0023] By rotating the cylindrical collar about the axis and disposing it in accordance with the outer peripheral shape of the non-circular cross-section electric wire, it is possible to easily and surely hold and fix the non-circular cross-section electric wire by the holding portion. . In addition, since the separation of the cylindrical collar surrounding the non-circular electric wire in section from the gripping portion is limited, even when working in an unstable place at a high place such as a space ride, the cylindrical collar is not dropped. The work is easier. Moreover, there is no need to cut off the fins. And also, the cylindrical collar will accompany the grip,
The non-circular electric wire having a non-circular cross section is not held and fixed by the holding portion without the interposition of the cylindrical collar, and the reliability of the operation is improved.

[Brief description of the drawings]

FIG. 1 is a side view of an embodiment of a gripping portion for a non-circular electric wire of the present invention before tightening.

FIG. 2 is a side view after tightening of FIG. 1;

FIG. 3 is a front view of the cylindrical collar in FIG. 1;

FIG. 4 is a sectional view taken along the line AA of FIG. 3;

FIG. 5 is a cross-sectional view of the state in which the cylindrical collar is opened in the AA cross section of FIG. 3;

FIG. 6 is an external perspective view of the guide member of the embodiment of the present invention shown in FIG.

FIG. 7 is an external perspective view of the guide member of FIG. 6;

FIG. 8 is a side view of another embodiment of the gripping portion for non-circular electric wires of the present invention before tightening.

FIG. 9 is a front view of the cylindrical collar in FIG.

FIG. 10 is a side view of FIG. 9;

11 is a sectional view taken along the line BB of FIG. 9;

FIG. 12 is an external perspective view of a gripper body provided with a dovetail groove and a holding arm provided with a U-shaped groove in cross section according to another embodiment of the present invention shown in FIG. 8;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Gripping part main body 12, 18 groove 14 Holding arm 16, 34 pin 24 Cylindrical collar 28 Non-circular electric wire in cross section 30 Fin part 32 Fin groove 36 Band-shaped member 38 Guide groove 40 Guide member 50 Dovetail 54 Dovetail projection

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H02G 7/00-7/22

Claims (4)

(57) [Claims] 1. A holding section body provided with a semi-cylindrical groove, a holding arm provided with a semi-cylindrical groove opposed to the groove is hinged, and a cross-section substantially formed by the two grooves. A cylindrical collar that has a circular outer shape with a circular cross section that fits in the closed holding space and that has an inner peripheral shape that fits with the outer shape of a non-circular cross-section electric wire. Is divided into two parts in the axial direction and hinged so that the inner peripheral part can be opened and closed, and the cylindrical collar can be freely rotated around the axis in the holding space in a state where the holding space is open. The holding means is configured to be connected to at least one of the holding body and the holding arm by a connecting means so as to limit separation, and the non-circular cross-section electric wire is clamped and held by the holding body and the holding arm via the cylindrical collar. Grip for non-circular electric wire with cross section Department. 2. A gripping portion for a non-circular electric wire having a cross section according to claim 1, wherein said connecting means is formed in a belt-like shape having flexibility around an axis across a hinge portion around an outer periphery of said two-part cylindrical collar. Along with disposing the member, both ends of the band-shaped member are fixed to the divided cylindrical collars, respectively, and the band-shaped member is moved in the length direction to the guide portion which is axially mounted together with the gripping body and the holding arm with the hinge. A gripping portion for a non-circular cross-section electric wire, wherein the gripping portion is configured to be freely engaged. 3. The cross-section non-circular electric wire grip according to claim 2, wherein the band-shaped member is formed of an elastic member that elastically urges the cylindrical collar in a closing direction. Gripping part. 4. The gripping portion for a non-circular electric wire having a non-circular cross section according to claim 1, wherein an ant-like projection is formed around one axis on one of two outer circumferences of the cylindrical collar, and A dovetail groove in which the dovetail-like projection is fitted and movable around an axis on an inner periphery of the groove, wherein the gripper has a non-circular cross section.