JP2582552Y2 - Messenger wire fixture - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a messenger wire fixing device used for fixing an electronic device to a messenger wire stretched in the air.

[0002]

2. Description of the Related Art A messenger wire fixing tool of this type shown in a plan view in FIG. 8 (Japanese Utility Model Publication No. 3-23794) is a messenger wire mounting portion on the opening edge 58 side of a main body 51 of a housing. At the position, a step 52 whose upper surface is flush with the opening edge 58 is protruded, and the step 52 is erected on the step 52.
A coil spring (not shown), a pressing member 54, and a washer 55 are fitted into the square threaded screw rod 53, and the T-type nut 5 is
6 is screwed. The holding member 54 abuts the base portion against the opening edge portion 58 to form a messenger wire introduction port with the main body 51 at the tip end, and the hanging pieces 57 projecting from both sides on the back surface interfere with the step portion 52 at the time of assembly. A gap is provided between the hanging piece 57 and the stepped portion 52 so as not to be prevented. For this reason, the holding member 54 is rotated by the rotation of the nut 56, and after the hanging pieces 57, 57 abut on the stepped portion 52, the pressing member 54 moves in the axial direction of the screw rod 53. Then, the distal end side of the holding member 54 is inclined downward, and the messenger wire is sandwiched between the holding member 54 and the main body 51.

[0003] FIG.
No. 5398), a pair of mounting bases 72, 72 are protruded from the main body 71 at positions where the messenger wires are mounted. A screw shaft 77 of a bolt 76 is inserted through a hook 74 fixed to the mounting bases 72 with bolts 73, 73,
A holding member 78 is screwed onto the screw shaft 77. The holding bracket 78 is rotated by the rotation of the bolt 76 to rotate the mounting base 72,
After abutting on the bolt 72, the bolt 76 moves in the axial direction, and when the bolt 76 rotates clockwise with a right-hand screw, the messenger wire is clamped between the holding metal 78 and the hook 74.

[0004]

However, between the inner surface of the hanging piece 57 of the holding member 54 shown in FIG. 8 and the outer surface 59 of the step 52, and the side edge of the holding metal 78 shown in FIG. Since the clearance between the inner surface of the base 72 and the inner surface of the base 72 is given a margin from the beginning in consideration of the case where the assembly cannot be performed due to manufacturing or assembly errors, the holding member 54 and the holding metal 78 are inclined with respect to the messenger wire ( So-called swinging), and the pinching was sometimes performed with the wire gripping being incomplete.

The present invention has been made in view of the above-mentioned point, and a messenger wire fixing device which eliminates swinging of a holding member when clamping a wire by relatively simple means, so that a messenger wire can be clamped correctly. The purpose is to provide tools.

[0006]

In the messenger wire fixing device of the present invention, an engaging groove 13 is formed at the front end of the device main body 3 and formed at the front end, and the engaging step portion 11 is formed at the opposite end. A pedestal 8 is provided, a screw shaft 9 erected in the middle of the pedestal 8, and a hole 27 fitted in the screw shaft 9 in the middle, wire holding portions 29, 29 are formed on both sides on the front end side and formed on the back surface. A pressing member 15 provided with a concave portion 26 for accommodating a pair of spring pieces 24, 24 described later, and a hole 21 for loosely fitting to the screw shaft 9 in the middle of a plate member 20, the engaging groove 13 at the front end. A pair of spring pieces 2 is provided on both sides of which protruding bent pieces 22 are engaged, and the interval between the inner edges 23 is larger than the width of the base 8 on both sides.
4 and 24 are separated from the plate member 20 except for the base portion, and the plate springs 14 are inclined in the direction opposite to the bending direction of the bent piece 22.
And a nut 17 screwed to the screw shaft 9 to press the pressing member 15. The leaf spring 14 is fitted to the screw shaft 9, the bent piece 22 is engaged with the engagement groove 13, and the opposite end is engaged. In a state in which it abuts on the step portion 11, the distal ends of the pair of spring pieces 24, 24 abut on the front upper wall of the concave portion 26 of the pressing member 15 fitted on the screw shaft 9. .

When the pressing member 15 before tightening is slightly pressed down against the leaf spring 14 with a nut 17 screwed to the screw shaft 9,
The front end of the pressing member 15 is pushed up by a pair of spring pieces 24, 24, the middle is pressed down by a nut 17, and the rear end of the pressing member 15 comes into contact with the leaf spring 14 and tilts. A messenger wire 2 insertion / removal section 30 is formed.

When the messenger wire 2 is introduced into the opening 30 and the nut 17 is tightened, the pair of spring pieces 2
4 and 24, the repulsion force and the pressing force against the engaging step 11 increase as the inclination angle decreases, and the leaf spring 14 is strongly pressed against the pedestal 8 and the engaging step 11, while the bent piece 22 is Since the leaf spring 14 is engaged with the engagement groove 13, the leaf spring 14 is fixed to the pedestal 8 and does not move by tightening the nut. The pressing member 15 is formed on the front upper wall of the concave portion 26 by a pair of the spring pieces 2 of the leaf spring 14.
4 and 24, and the rear end of the hole 27 of the pressing member 15 engages with the screw shaft 9, so that the nut 17 does not rotate even if tightened. For this reason, the wire holding portion 2 of the pressing member 15
The messenger wire 2 can be correctly clamped between the devices 9 and 29 and the device main body 3.

Next, when the nut 17 is loosened to return to the open state, the repulsive force of the pair of spring pieces 24, 24 and the pressing force toward the engaging step 11 gradually decrease. As in the case of the stroke, the leaf spring 14 and the pressing member 15 do not rotate.

In the above-described means, a leaf spring 34 shown in FIG. This leaf spring 34
Since the hole 35 has the same diameter as the screw shaft 9, the plate spring 34 fitted on the screw shaft 9 does not move in the radial direction from the center of the screw shaft 9, and rotates around the screw shaft 9. Is prevented by the engagement between the bent piece 22 of the leaf spring 34 and the engagement groove 13 of the pedestal 8, so that the nut 17 does not move even when the nut 17 is tightened, like the leaf spring 14. In the leaf spring 34,
Since there is no need to engage the engaging step 11, the leaf spring 34
Can be shortened or the engagement step 11 can be eliminated.

[0011]

[Embodiment] An embodiment of the present invention will be described with reference to the drawings. FIG. 7 is a perspective view showing a state in which the electronic device 1 is attached to the messenger wire 2 stretched in the air. The case of the electronic device 1 is composed of a device main body 3 and a cover 4, and messenger wire fixing tools 6, 6 are provided on the outside of connecting metal fittings 5, 5 for attaching the cover 4 to the device main body 3.

As shown in FIG. 1, the messenger wire fixing tool 6 has a pedestal 8 protruding from the messenger wire mounting portion of the device main body 3 and an engaging step 11 protruding near the opening surface 10 of the pedestal 8. At the same time, an engagement groove 13 is provided in the middle of the opposite front wall 12, and a hexagon socket screw shaft 9 is provided at the center of the upper surface of the base 8.
Is established. The screw shaft 9 has a leaf spring 14 and a pressing member 1.
5. Fit the washer 16 and screw the nut 17 together.

The leaf spring 14 has a hole 21 for loosely fitting the screw shaft 9 in the center of a rectangular spring plate 20 and an engagement groove 13 recessed in the center of the edge of the front wall 12 of the pedestal 8. An engaging bent piece 22 is protruded, and inner edges 23, 23 are provided on both sides.
, A pair of spring pieces 24, the distance of which is larger than the width of the base 8,
24 is separated from the plate material 20 except for the base, and the bent piece 2
2 is installed obliquely in the direction opposite to the bending direction. Further, at the opposite end of the bent piece 22, a leaf spring 14 is loosely fitted to the screw shaft 9 through the hole 21 and the bent piece 22 is engaged with the engagement groove 13 of the pedestal 8, as shown in FIG. In this state, a pair of projections 25, 25 that come into contact with the engagement step 11 are formed.

Since the width of the engagement groove 13 and the bent piece 22 of the pedestal 8 may be very small, even if a manufacturing error occurs, the value of the error is very small. For this reason, even if the engagement groove 13 can be made slightly larger than the bent piece 22, the gap between the bent piece 22 and the bent piece 22 is very small. Can easily be fitted to the engagement groove 13 with a file or the like.

The leaf spring 34 shown in FIG. 4 has a hole 35 to be fitted in the screw shaft 9 having the same diameter as the screw shaft 9, and the rear end edge 36 of the leaf spring 34 is not engaged with the engaging step 11. It differs from the leaf spring 14 shown in FIG. 3 in that the length is shortened.
Since the leaf spring 34 fits with the screw shaft 9 without rattling,
It does not move radially from the center of the screw shaft 9. Further, the rotation about the screw shaft 9 is prevented by the engagement between the bent piece 22 and the engagement groove 13. Therefore, similarly to the leaf spring 14 shown in FIG. 3, since it does not move by tightening the nut 17, it can be used instead of the leaf spring 14. Note that the plate spring 34 may not have the engaging step 11 instead of shortening its length.

The pressing member 15 has a concave portion 26 (FIG. 2) for accommodating a pair of spring pieces 24, 24 of the leaf springs 14, 34 on the back surface.
A hole 27 having a width that is approximately the same size as the screw shaft 9 or a hole that loosely fits into the screw shaft 9 is formed in the middle.
Are formed on the tip side of the wire.

[0017]

As described above, according to the present invention, the rotation of the pressing member which is pressed down by the nut tightening by the leaf spring which is fitted on the screw shaft and is engaged with the engaging groove of the pedestal with the bent piece. Because of the blocking, the messenger wire can be correctly clamped by relatively simple means.

[Brief description of the drawings]

FIG. 1 is a view for explaining assembly of an embodiment of the present invention.

FIG. 2 is a perspective view of the pressing member turned upside down.

FIG. 3 is a partially cutaway plan view of an embodiment of the present invention.

FIG. 4 is a partially cut-away plan view of another embodiment of the present invention.

FIG. 5 is a diagram for explaining the operation of the embodiment of the present invention.

FIG. 6 is a longitudinal sectional view showing a state in which a messenger wire is clamped according to the embodiment of the present invention.

FIG. 7 is a perspective view showing a state where the electronic device is attached to the messenger wire.

FIG. 8 is a plan view of a conventional product.

FIG. 9 is a plan view of another conventional product.

[Description of sign]

 2 Messenger wire 3 Device body 8 Pedestal 9 Screw shaft 11 Engagement step 13 Engagement groove 14 Leaf spring 15 Pressing material 17 Nut 20 Plate 22 Folding piece 23 Inner edge 24 Spring piece 26 Depression 27 Hole 29 Wire presser Part 34 leaf spring 35 hole

Claims (2)

(57) [Scope of request for utility model registration] 1. A pedestal protruding from an apparatus main body and having an engaging groove formed at a front end thereof, and having an engaging step portion protruding at an opposite end thereof, a screw shaft erected in the middle of the pedestal, and A pressing member having a hole fitted to the screw shaft, forming a wire holding portion on both sides on the front end side, and providing a concave portion for accommodating a pair of spring pieces described later on the back surface;
In the middle of the plate material, a bent portion that has a hole portion that is loosely fitted to the screw shaft and that engages with the engagement groove is protruded at the front end, and a pair of inner edges on both sides whose inner edge intervals are larger than the width of the pedestal. A leaf spring which is separated from the plate material leaving the base portion of the spring piece obliquely in a direction opposite to the bending direction of the bent piece, and a nut which is screwed to the screw shaft and presses a pressing material. In a state in which the bent piece is fitted in the engagement groove and the opposite end thereof is in contact with the engagement step, the front end of the pair of spring pieces is located in front of the concave portion of the pressing member fitted in the screw shaft. A messenger wire fixing device, which is in contact with a top wall. 2. A pedestal protruding from the device body and having an engagement groove at a front end, a screw shaft erected in the middle of the pedestal, and a front end side portion having a hole fitted into the screw shaft in the middle. A pressing member having a wire holding portion formed therein and a concave portion for accommodating a pair of spring pieces described later provided on a back surface, and a hole portion which fits the screw shaft without rattling in the middle of a plate material, and has a front end provided with the engaging member. A bent piece that engages with the mating groove protrudes, and a pair of spring pieces on both sides are separated from the plate material except for a pair of spring pieces having a larger inner edge interval than the width of the pedestal, and a bending direction of the bent piece. A leaf spring obliquely installed in the opposite direction to the screw shaft, and a nut screwed to the screw shaft to press the pressing member. The leaf spring fits the screw shaft without rattling and engages the bent piece with the engaging groove. In this state, the tips of the pair of spring pieces abut on the front upper wall of the recess of the pressing member fitted on the screw shaft. Sessener wire fixture.