JPS643215Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is designed to prevent roof-mounted equipment such as television antennas and solar collectors from collapsing or shifting unexpectedly due to vibration or wind. A metal fitting used when fixing one end of a branch line stretched under tension between equipment and a fixed part of a building such as a rafter under the eaves to the fixed part of the building, or interposed in the middle of the branch line. At least one longitudinal end of the tensile wire member is provided with a locking fitting having a through hole for locking the branch wire and a cylindrical portion that can be externally fitted onto the tensile wire member. This invention relates to a branch line stopper that is fixed by fitting and caulking.

The branch wire stopper having the above structure is manufactured by mechanically fitting the cylindrical part of the stopper onto the longitudinal end of the tensile wire member and crimping it. Because it can be fixed to the wire rod itself, it is easier to manufacture and cheaper to manufacture than in the case where the locking part for the branch wire is formed by bending the wire itself that constitutes the tensile wire member, and there is less variation in processing accuracy. Another advantage is that the locking metal fitting can be very firmly fixed to the tensile wire member by crimping, so that the tensile strength of the entire branch line holding metal fitting can be made sufficiently large. On the other hand, as shown in FIG. 6, in this type of conventional branch line locking fitting, a through hole 03 is drilled in the locking fitting 05, and the branch line is made to slide smoothly through the hole 03. In the conventional method, the openings 03a and 03a at both ends of the hole were chamfered, but in this case, the number of machining steps was large and the manufacturing cost was likely to be high. In terms of breakage resistance, it cannot be made very large, and the limit is the same size as the wall thickness of the locking metal fitting. Therefore, it is difficult to insert and lock a single branch wire, and it is even more difficult to insert two branch wires in different directions.
It is almost impossible to insert and lock more than one branch line, and the branch line fastening fitting has low versatility.

In view of the above circumstances, an object of the present invention is to provide a branch wire stopper that has the above-mentioned advantages of caulking, is easy to process as a whole, and can easily perform the work of inserting the branch wire. .

In order to achieve the above object, the branch line stopper according to the present invention is provided by machining one end of the stopper into a wide width by crushing it, and at the same time driving an eyelet fitting into the wide part to hold the stopper through the locking through-hole. It is characterized by certain features, and the following effects can be expected.

In other words, to construct the through-hole for locking the branch line, one end of the locking fitting is crushed to make it wide and the eyelet fitting is driven in all at once using a press, so that the branch line can slide easily and be strong. It is possible to construct a hole that allows the branch wire to be stretched in a state of tension at a low cost, and the hole can be made larger due to its wide width, and the fracture resistance of the hole forming part can be increased due to the presence of the eyelet member, so the hole can be made even larger. The combination of good sliding and large holes makes it possible to easily insert and lock two or more branch wires in different directions. This has the practical effect of expanding the scope of use of the branch line fastener.

Embodiments of the present invention will be described in detail below based on the drawings.

In Fig. 1, 1 is a tensile wire member, which consists of two stainless steel wire rods 1a, 1a with a total length of about 300 to 1500 mm and a straightness of 0.1 to 3.0 mm. It is configured to be able to bend and deform by twisting it spirally up to 60 times.

Reference numeral 5 denotes a locking metal fitting, which is made by crushing one longitudinal end of a metal columnar member into a flat disk shape, forming therein a circular through hole 3 for locking the branch wire, and forming a circular through hole 3 in the other end for locking the branch wire. A cylindrical portion 4 that can be fitted onto the tensile wire member 1 is formed on the inner surface of the cylindrical portion 4, as shown in FIG.

The cylindrical parts 4, 4 of the locking metal fittings 5, 5 described above are fitted onto both ends of the tensile wire member 1 in the longitudinal direction, respectively, and the cylindrical parts 4, 4 are crimped to lock both ends. The metal fittings 5, 5 are fixed in the longitudinal direction of the tensile wire member 1.

In the through hole 3 of one of the locking metal fittings 5, a screw screw 6 which can be screwed into the building fixing part is fixedly held together with a packing 7 and a packing holder 8. In the figure, reference numeral 9 denotes a soft tube that is fitted over an appropriate range in the longitudinal direction of the tensile wire member 1 to prevent the tensile wire member 1 from coming into strong direct contact with the corner of the building. It is.

In the above-mentioned branch line locking fitting, in order to construct the locking through hole 3 of the locking fitting 5, one end portion 5A of the locking fitting 5 is crushed by a press as shown in FIGS. 2 and 3. The locking through hole 3 is formed by machining it into a wide width that is substantially disk-shaped in plan view, and at the same time, an eyelet member 10 is driven into and held in the wide width portion 5A.

The above-mentioned branch line fastening fittings have a tension supporting branch line 2 such as a wire drawn out from a roof-mounted device B such as a television antenna, for example, as shown in FIG. At the same time, the screw screw 6, which is inserted and held through the through hole 4 of the other locking metal fitting 5, is connected to a fixed part A of the building such as a rafter under the eaves, and the elastic gasket 7 is attached to the screw screw 6. The branch wire 2 is stretched under tension between the roof-mounted equipment B and the building-fixed part A by twisting it until it comes into strong pressure contact with the outer surface of the building-fixed part A, and is installed on the roof. It is used to maintain device B in a state where it does not fall over or shift its position.

In addition, as another usage mode, the locking metal fittings 5, 5 at both ends
The end portions of the branch lines 2, 2 may be locked and connected to the through holes 4, 4, respectively, and used as fittings for connecting the branch lines.

Alternatively, the locking fitting 5 may be manufactured by machining a metal pipe as shown in FIG.

[Brief explanation of the drawing]

The drawings show an embodiment of the branch line stopper according to the present invention, in which Fig. 1 is an overall perspective view, Figs. 2 and 3 are an enlarged partially cutaway plan view and longitudinal sectional side view of the main parts, and Fig. 4 is an enlarged partially cutaway plan view of the main part. FIG. 5 is an enlarged perspective view of the main parts showing another embodiment, and FIG. 6 is an enlarged vertical sectional side view of the main parts of the conventional product. DESCRIPTION OF SYMBOLS 1... Tensile wire member, 2... Branch wire, 3... Locking through hole, 4... Cylindrical part, 5... Locking metal fitting, 5A... Wide portion, 10... Eyelet member.

Claims (1)

[Scope of utility model registration request] At least one longitudinal end of the tensile wire member,
A locking fitting 5 having a through hole 3 for locking the branch wire 2 and a cylindrical portion 4 that can be externally fitted onto the tensile wire member 1.
In the branch line stopper which is fixed by fitting and tightening the cylindrical part, one end part 5A of the stopper 5 is crushed to have a wide width, and at the same time, an eyelet fitting 10 is driven into the wide part 5A to hold it. A branch line fastening fitting that forms the above-mentioned locking through hole 3.