JPH0581300U - Tension adjustment type filament - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a tension-adjustable filament body that is compact and has a good appearance, and that can easily adjust tension without imparting undue twist to the filament body body. . [Structure] A linear member main body having a male thread on the outer periphery and a terminal fixing portion having at least two straight surface protruding portions at its longitudinal end portion; and a protruding portion at the front end portion for accommodating the terminal fixing portion. It is provided with a mounting bracket having matching deformed holes and a nut arranged in the mounting bracket and screwed with a male screw of the terminal fixing portion.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 INDUSTRIAL APPLICABILITY The present invention is a cable for striations, especially a guard cable, a guard cable for sidewalks, a fence that protects pedestrians from collisions such as automobiles in urban areas, a wall reinforcement auxiliary material for roads of buildings, clothesline, cables for interiors such as buttecs. , A tension-adjustable linear body suitable for use as a hanging member for articles.

[0002]

[Prior art and its technical problem]

Wires, especially those with a tensile strength exceeding 170 kg / cm ² , such as wire rope, steel stranded wire, and steel wire, are used as guard cables, sidewalk guard cables, urban fences, building reinforcements, clothesline It is used as a hanging member for articles. In this case, it is necessary for both ends of the filament to be fastened to the object, but unlike a bar or the like, since it cannot have a terminal mechanism itself, it is subjected to terminal processing. There are various methods for processing the terminal such as ice price, single lock, and socket (wedge). However, although they can attach the filament to other objects, they cannot adjust the tension of the filament arbitrarily. For this reason, conventionally, it is necessary to measure an appropriate length on site and perform terminal processing accordingly, which is a large and time-consuming problem, and requires special technology for processing, resulting in large variations. There was a problem. In Japanese Utility Model Publication No. 37-8727, a mounting bolt is fitted to the rear end of a terminal metal fitting of a wire rope that is wedged, a retaining nut is screwed, and the tip end of the mounting bolt is passed through a column or the like. After that, it is proposed that the tightening nut is screwed and the terminal metal fitting is pulled by rotating the tightening nut to adjust the tension of the wire rope. However, in this structure, since the mounting bolts project from the terminal fittings for a long time, there are problems in that the overall size becomes large and the appearance and appearance are not good. The present invention was devised to solve the above-mentioned problems, and its purpose is to have a compact structure and to easily adjust tension without giving undue twist to the filament body. It is to provide a tension-adjustable linear body capable of performing the above.

[0003]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention includes a filament main body having a male thread on the outer periphery and a terminal fixing portion having a protrusion having at least two linear surfaces at the longitudinal end, and a terminal fixing portion. Further, it is configured such that a mounting fitting having a deformed hole at the front end portion that matches the projection portion and a nut arranged in the mounting fitting and screwed with the male screw of the terminal fixing portion are provided.

[0004]

【Example】

 An embodiment of the present invention will be described below with reference to the accompanying drawings. 1 to 3 show an embodiment of a tension-adjustable linear body according to the present invention, in which 1 is the main body of the linear body, for example, a rope such as 7 × 7 + 6 × Fi (29), 1 × 7 A stranded wire or a single wire is used. It goes without saying that the material is not limited to steel. Reference numerals 2 and 2 ′ are terminal fixing portions provided at both ends of the filamentous body 1, and in this embodiment, button heads 10 and 10 are formed at the ends of the filamentous body 1 by a heading device. The end portion of the filamentous body including Nos. 10 and 10 is cast in a metal. For this casting, a die casting method using a zinc alloy or the like is preferably used. The length of the fixing portion depends on the filament main body 1 and tension, but is generally set to 2 to 5 times the diameter of the filament main body 1. At least one of the terminal fixing portions 2 and 2'includes a columnar portion 2a provided with male screws 20 at a predetermined pitch on its peripheral surface, and a protrusion 2b protruding from an end of the columnar portion 2a by a required length. have. At least two surfaces of the protrusion 2b are straight in a cross section perpendicular to the longitudinal direction. In this embodiment, the other end fixing portion 2'is formed of a columnar portion 2a having no male screw, but in some cases, the other end fixing portion 2'may have a protrusion 2b like the one end fixing portion 2.

Reference numerals 3 and 3 ′ are attachment fittings fixed to a desired attachment partner such as a pillar material, a beam, and a beam material. In this embodiment, one of the fittings 3 is for tension adjustment, has the terminal fixing portion 2 built-in, and has a space for operating the tool. The other mounting member 3'is for fixing to the mounting partner, and has a space for incorporating the terminal fixing portion 2 '. One of the mounting brackets 3 has a modified hole 31 having a cross-sectional shape that matches the protruding portion 2b of the terminal fixing portion 2 on the support wall 30 as the front end portion, and the protruding portion 2b of the terminal fixing portion 2 is provided therein. It is fitted. In the other mounting member 3 ', a through hole 32 is formed in the support wall 30 with which the end face of the terminal fixing portion 2'contacts to allow the insertion of the filament main body 1. When 2b is provided, the support wall 30 is provided with a deformed hole. Reference numeral 4 denotes a square nut arranged as a separate member in the mounting member 3, and has an internal thread 40 on its inner surface for engaging with the external thread 20 of the terminal fixing portion 2. A washer or bearing 5 for thrust reception is preferably arranged between the end surface of the square nut 4 and the inner surface of the support wall 30. The square nut 4 is also arranged on the side of the fitting 3 ', if necessary. The corner nut 4 is preferably screwed in advance with the terminal fixing unit 2.

In order to obtain the structure of the embodiment shown in FIGS. 1 to 3, the filament main body 1 is pretensioned to remove structural elongation, and then cut to a required length, and then the wire is cut as shown in FIG. Insert the tip end of the strip body 1 through the deformed hole 31 of the mounting member 3 and the washer or bearing 5. Then, the button head 10 is produced by a heading device, and the portion including the button head 10 is placed in a mold A made of a split mold. The mold A has a cylindrical portion and a deformed portion for the protrusion. As shown in FIG. 6, the molten metal is injected from the pouring port a, and after the molten metal is solidified, the mold A is released from the end fixing portion 2 Is obtained. After that, a male screw may be formed on the cylindrical portion of the terminal fixing portion 2. Although not shown, the terminal on one side may be inserted into the mounting member 3 ', processed into a button head, placed in a mold, and cast.

FIG. 4 shows another embodiment of the present invention. This embodiment is applied to the case where a steel wire (single wire) is used as the filament main body 1, and the terminal fixing portion 2 has a male portion 20 on the outer periphery and a protruding portion 2b on the end portion. The sleeve 2c is tightly fitted to the filament body 1 and the button head 20 is formed at the end of the filament body 1. The rest of the configuration is the same as that of the above-mentioned embodiment.

FIG. 7 has another embodiment of the present invention. In this embodiment, the fittings 3, 3'are separated from the filament main body 1 including the terminal fixing portions 2, 2 ', and the outer ends of the fittings 3, 3'are attached to the support wall 30. A groove 33 is formed to connect the irregular shaped hole 31 and the projection 3b of the terminal fixing portion 2 is fitted through the groove 33. The groove 33 is filled with the embedded metal fitting 3a as required. This embodiment has an advantage that the terminal fixing portions 2 and 2'can be provided in the filament main body 1 which is cut into a predetermined length without being combined with the fittings 3 and 3 '.

[0009]

[Operation of the embodiment]

 Next, the usage and action of the one shown in the embodiment will be described. FIG. 8 shows an example in which the present invention is applied to a sidewalk guard fence in which the energy of a collision of an automobile or the like is absorbed by cables and stanchions to ensure the safety of sidewalk pedestrians. Reference numeral 7 is a pillar whose lower part is buried in the ground, and 8 is a wire net stretched between the pillars 7, 7. When applied to this embodiment, the anti-support wall side of the fittings 3, 3'is fixed as a bracket to the stanchions 7, 7 by an arbitrary method such as tightening a bolt 9. Then, in order to adjust the tension of the filament main body 1, a tool such as a spanner or a wrench is inserted into the inner space of the fitting 3 as shown in FIG. 4 may be rotated. In this way, the end surface of the square nut 4 rotates while contacting the washer or the thrust bearing 5, but the terminal fixing portion 2 has the protruding portion 2b having a cross-sectional shape having a straight surface on at least two surfaces. Since the terminal fixing portion 2 does not rotate, it is moved in the axial direction according to the rotation of the square nut 4 because it is fitted in the deformed hole 31 provided in the support wall 30 of the mounting bracket 3. As a result, tension is applied to the filamentous body 1. Therefore, the tension can be easily adjusted, the workability is good, and since the terminal fixing portion 2 does not rotate as described above, the filament main body 1 is not twisted, and good characteristics are secured. In addition, since the terminal fixing parts 2 and 2'are made by factory production and are integrally combined with the mounting metal fittings 3 and 3'that match the shape of the mounting destination, the quality and dimensional accuracy should be small. You can

[0010]

[Effect of the device]

 According to the present invention described above, the main body 1 of the linear body provided with the external thread 20 on the outer periphery and the terminal fixing portion 2 having the projections 2b having at least two straight surfaces on the longitudinal end, and the above-mentioned main body on the front end It has a mounting bracket 3 having a deformed hole 31 that matches the protruding portion 2a, and a nut 4 arranged in the mounting bracket and screwed with the male screw 20 of the terminal fixing portion 2, and the nut 4 inside the mounting bracket 3 is rotated. Since the linear body main body 1 can be tensioned by the movement, the entire structure can be made compact and good in appearance. Moreover, the projection 2b of the terminal fixing portion 2 fits into the deformed hole 31 and Since it moves only in the axial direction by the rotation, it does not twist the filament main body 1 and does not give relative twist between the filament main body 1 and the terminal fixing portion 2, so that good strength characteristics can be provided. Good things you can do Effect can be obtained.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a tension-adjustable linear member according to the present invention.

FIG. 2 is a sectional view taken along line XX in FIG.

3 is a cross-sectional view taken along the line YY of FIG.

FIG. 4 is a partial cutaway side view showing another embodiment of the present invention.

FIG. 5 is an explanatory diagram showing a manufacturing process of the embodiment of FIG.

FIG. 6 is an explanatory view showing a manufacturing process of the embodiment of FIG.

FIG. 7 is a front view showing another embodiment of the present invention.

FIG. 8 is a side view showing an example of use of the present invention.

[Explanation of symbols]

 1 Wire body 2,2 'Terminal fixing part 2b Projection part 3, 3'Mounting bracket 4 Square nut 20 Male screw 31 Deformed hole 40 Female screw

Claims (4)

[Scope of utility model registration request] 1. A linear body main body having a male thread on the outer periphery and a terminal fixing portion having at least two straight surface-shaped protrusions at its longitudinal end, and a protrusion for accommodating the terminal fixing portion and at the front end. A tension-adjustable linear member provided with a fitting having a deformed hole that matches the section, and a nut arranged in the fitting and screwed with a male screw of the terminal fixing portion. 2. The wire body has a button head at the end,
The tension-adjustable linear member according to claim 1, wherein the terminal fixing portion is formed by casting the end portion of the linear member including the button head with metal. 3. A terminal fixing section is constructed by externally fitting a sleeve having two linear projections on the end of the filament body and providing a button head at the portion protruding from the sleeve. The tension-adjustable linear member according to claim 1. 4. The tension-adjustable linear member according to claim 1, wherein the end surface of the nut is in contact with the front end portion of the fitting through a washer or a thrust bearing.