JPS61285014A - Box type safe - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION In order to expand and close a protective net mainly used in power transmission line construction, etc., the main body of the net is inserted into a busbar rope and is rolled when it comes into contact with the rope. This relates to a gold wheel with a built-in moving roller. In the case of the above-mentioned application, a protective rope that is movably provided along the bus rope and an auxiliary rope that is provided along the bus rope for this movement are secured to the metal wheel. The purpose is to allow the vehicle to move smoothly along the busbar rope without any trouble.

In the construction of power transmission lines, etc., protective nets are installed to protect structures below and construction equipment in case of problems such as abnormal drooping of power lines during construction. For this protective net, several busbar ropes are erected around the amount of support that will be installed.
A method is adopted in which protective ropes are stretched at continuous intervals using this as a base, and a net-like protective device is formed by the bus rope and the protective ropes perpendicular to this. It is stretched like a net at q,
In the case of large-scale installations, the method is to stretch the busbar rope and then deploy the protective rope using auxiliary ropes.

Deploying this protective rope requires a metal wheel that slides on the bus rope, but the force applied to the metal wheel during sliding and when the net is stationary is not constant in multiple directions, and its thickness is always constant. Change.

In addition, in order to prepare for syllables during construction such as when electric wires are hanging down, it is required to have sufficient mechanical strength, and also to be small and lightweight due to the location of use. There are no conventional metal wheels that meet the above requirements, especially those that can handle multiple force directions and are small.

It is not lightweight enough, and not only does it not slide smoothly when the protective rope is deployed and stored, but it may also cause problems with the protective net itself due to derailment.

Recently, with the increase in the scale of construction work such as power transmission line construction and the diversification of lower structures to be protected, there is a trend toward larger protective nets and demands for high strength and high reliability. Meanwhile, chemical fiber ropes with high tensile strength comparable to conventional steel wire, such as Kepler rope, have been developed and used for protective nets and their busbars, and large-scale, high-strength construction using this rope has become popular. To construct a protective net, rollers that slide smoothly and reliably on Keplerian ropes for busbars are required. In particular, when the substructure to be protected is a special high-voltage power transmission line, the protective net must have electrical insulation as well as high strength and reliability, and the rollers must not only be able to slide reliably, but also be small and compact due to their intended use. I hope it's lighter.

In order to solve the above-mentioned problems, the present invention arranges a plurality of cylindrical rollers vertically and horizontally at appropriate intervals in a rectangular box-shaped outer frame, and inserts a busbar rope between these rollers. We devised the shape, number, and arrangement of the rollers so that they could slide smoothly on the World Bank rope while sufficiently withstanding external forces in multiple directions from the box-shaped outer frame. The roller shaft is constructed so that it can freely rotate around a table axis perpendicular to one end of the roller shaft, and pressure is applied so that the space within the outer frame can be opened and closed on this one surface, and by opening it, the busbar rope can be inserted and removed. When the space is closed, the rotation of the roller shaft is prevented and locked to prevent the bus rope within the space from easily escaping.

One application example of the present invention will be described with reference to FIG.

1a and 1b are two steel towers, and a plurality of power transmission lines (not shown) are installed between them. The illustrated protective net is provided so as to wrap around the power transmission line from both sides and from below, and the lower net is placed between the power transmission line and a structure (not shown) below it. Steel towers 1a and 1
Two upper busbar ropes 4 are stretched between the upper horizontal arms 2a and 2b, and four lower busbar ropes 5 are similarly stretched between the lower horizontal arms 3a and 3b.

A plurality of horizontal protection ropes 6 are provided along the line length direction to connect these ropes laterally in relation to the lower busbar rope 5,
Also, a plurality of vertical protection ropes 7 are provided which connect the upper and lower busbar ropes 4 and 5.

The unfolding and closing of the protective net thus formed is carried out by allowing the horizontal and vertical protective ropes 6.7 to move along the respective busbar ropes 4.5; A box-shaped metal wheel 10 according to the present invention is provided at each intersection of each upper busbar rope 6, 7 and each upper busbar rope 4, 5 to perform the above-mentioned movement. An upper auxiliary rope 8 and a lower auxiliary rope 9 are provided along each lower busbar rope 5, respectively.

The details of the mutual relationship between each of the ropes 4 to 9 and the box-type metal wheel 10 are shown in FIG. That is, the metal wheel 10 has upper and lower horizontal rollers 11.12 and left and right vertical rollers 13.14.
These can be supported within an outer frame consisting of upper and lower horizontal frame plates 15 and 16 and a vertical frame plate 17 that firmly connects them. Horizontal rollers 11.12 and vertical rollers 13
, 14, the lower busbar rope 5 is inserted through the gap. An upper hanging tool 18 is fixed to the upper surface of the upper horizontal frame plate 15, and the lower end of the vertical protection rope 7 is locked to this via a ring. A lower hanging tool 19 is attached to the lower surface of the lower horizontal frame plate 16.
are fixed, one end of the horizontal protection rope 6 is fixed in one hole, and a corresponding part of the lower auxiliary rope 9 is fixed in the other hole. The above is an explanation related to the outer two ropes of the lower bus rope 5, but the engagement relationship related to the inner two ropes and the upper bus rope 4 is shown in FIG. 8 with reference to FIG. It is sufficient to make the following changes.

The first embodiment of the present invention, the metal wheel (3), is shown in FIGS. 1 to 3. In FIG. 1, the upper horizontal frame plate 15 has one hanging piece 15a (FIG. 2) at the left end, and two hanging pieces 15b (front and rear) at the right end (FIG. 3). Similarly, the lower horizontal frame plate 16
has one rising piece 16a (FIG. 2) at the left end, and two rising pieces 16b (front and rear) at the right end (FIG. 3).

The center portions of the left hanging piece 15a and the left rising piece 1 are firmly connected to each other by a vertical frame plate 17. Left hanging piece 15a
The central shaft rods of the upper horizontal rollers 11, one each on the front and rear, are supported between the front and rear parts of the upper horizontal roller 11 and the right rain hanging piece 15b. Similarly, both the front and rear parts of the left side rising piece 16a and the right side rising piece 16b
The central shaft rods of the lower horizontal rollers L, one each in the front and rear, are supported between the two.

The left vertical roller 13 is located at the left end between the lower surface of the soil section horizontal frame board 15 and the upper surface of the lower horizontal frame board 16 (located at the center position between the front and back at the first rg, and its central axis is located under the I unit). It is supported by horizontal frame plates 15 and 16.The right vertical roller 14 is placed in the right position in contrast to the left vertical roller 13, but its support structure is quite different, with its central axis being at the upper end. It is a trap so that it can rotate around the center.

That is, the large diameter portion 14b at the upper end of the central shaft 14L of the roller 14 is attached to the mandrel 22 which extends between two opposing flat plate portions of the U-shaped support plate 21 fixed to the upper surface of the upper horizontal frame plate 15. It is rotatably supported as a center. A cylindrical body 23 is loosely fitted around the outer periphery of the lower end of the shaft e 14a, and an enlarged diameter knob 23a with a jagged outer periphery is continuously and integrally formed below the cylindrical body 23. This knob is formed with a recess that is deeply recessed upward from the bottom surface, and the push spring is housed in this recess. The upper end of this spring should be applied to the upper bottom plate of the knob 23m, and the lower end should be applied to the other side of the thin small disc placed on the pin inserted diametrically into the lower end of the shaft rod 141&. Cylindrical body 2
3 has the same outer diameter from the bottom to the top, and its upper end reaches the line of the lower surface of the frame plate 16 in FIG. A circular metal plate 26 is fixed to the lower surface of the frame plate 16, and a circular hole is made in the center of the metal plate 26 to accommodate the cylindrical blade.
Figure) An opening is provided that is just large enough to allow the K center shaft rod 14a to pass through. A key-shaped slot is provided on the front surface of the cylindrical body 23 (FIG. 3), the upper end of which extends upward, and the shaft rod 14a is inserted into this slot.
A radially projecting bottle is inserted. Knob 23
Since a is always pushed up by the spring U, the cylindrical body 23 is always at rest with this pin hitting the lower end of the slot.

When the cylindrical body 23 is always in the state shown in FIG. 3, the cylindrical body is confined in the central circular hole of the sheet metal 26, so the central shaft rod 14& has an opening in the front face of the circular hole. It is not possible to escape from this, and the roller 14 is therefore stable in the position shown in the first figure.

In this state, the spacing between the upper and lower horizontal rollers 11 and 12 and the spacing between the left and right vertical rollers 13 and 14 are slightly smaller than the outer diameter of the rope inserted in the front-rear direction while surrounded by these rollers. It is set to be long.

Therefore, even if the inserted rope moves back and forth while swinging up and down and left and right, the upper, lower, left and right rollers U to 14 roll lightly accordingly, so that the rope moves smoothly.

When attempting to insert or remove the above-mentioned rope into the gap 20, when the knob 231L is pulled downward against the force of the spring h, as shown in FIG.
The soil pin on the surface of the shaft 14a moves into the soil along its key slot relative to the cylinder 23. When the bottle reaches the upper end of the slot, turning the knob 23a to the right causes the bottle to move relatively to the left along the horizontal path of the slot, and when it reaches the left end, the knob 23a is turned to the right. Then, the bottle hits the bottom surface of the left end of the slot. At this time, the upper end of the cylindrical body 23 is slightly caught on the lower edge of the center hole of the sheet metal 26,
This state is a state in which the shaft @14a is ready for release. That is, if you pull the knob 23a slightly downward and forward,
The upper end of the cylindrical body is relatively easily displaced from the lower edge of the sheet metal 26, and the shaft rod 14m escapes forward from the front opening of the center hole of the sheet metal 26. Thus, in FIG. 1, the vertical roller 14 rotates counterclockwise about the axle 4 on the vertical roller 14, thereby opening the central closed gap 20 to the right. When attempting to return this gap to its original closed state, it can be relatively easily returned to the above-mentioned opening preparation state by rotating the knob 23& around the mandrel O in the opposite direction, and then turning the knob 23a. When it is rotated around itself in the opposite direction to that described above, the force of the spring 24 immediately returns it to the state shown in the third figure. In this state, even if the rope inserted into the gap 20 pushes the vertical roller 14 sideways with a strong force during movement, the 70-axis rod will not come off and be pushed out.

In FIG. 1, a threaded rod 31 and a short rod 32 are fixed to protrude leftward from the vertical frame plate 17, and are loosely fitted to both to provide a vertically long rectangular plate space. Threaded rod 31
An arcuate recess is formed in the washer and the nut surface with a jagged outer circumference so as to overlap between the flat plates to conveniently receive the auxiliary rope 9 (or 8) inserted therebetween. When installing, insert the flat plate with the auxiliary rope 9 in between, insert the washer arm, screw in the nut 35, and tighten the auxiliary rope 9 to the vertical frame plate 1.
7 is firmly attached. Note that a hanging tool 19 is fixed to the lower surface of the lower horizontal frame board 16 via a round bar 19a, and a hanging tool 18 is similarly fixed to the upper surface of the upper horizontal frame board 15.

Further, in FIG. 8, unlike in FIG. 1, the auxiliary rope 9 is locked to the hanger 19, but this should be seen as a conceptual drawing for the purpose of simplifying the illustration.

A metal wheel [F] according to a second embodiment of the present invention is shown in FIGS. 4 to 6. The difference between this dormitory example and the first dormitory example is that in FIG.
In Fig. 4, the left and right vertical rollers 13 and 14 are distributed and moved from the center position between the front and back, and the left and right rollers 13 and 14 are moved from the center position between the front and back.
There are only dots placed individually. This also means that
This is clear from the fact that in FIG. 3 there is one vertical roller 14 at the center position between the left and right sides, whereas in FIG. 5 there are two vertical rollers 14 on the left and right. It should be noted that in FIGS. 1 and 4, the rollers 14 and 15, as well as the space between the plates, etc., are shown in opposite directions. In FIG. 6, which is a bottom view of FIG. 5 viewed from below, illustration of the vertical frame plate 17 and the flat plate are omitted.

Gold wheel (A) of the GL example is generally durable enough to be used for all purposes, but in special cases, such as when the scale of the fishing net is large and the distance between supports such as steel towers is long, reliability may be reduced. If specifically requested.

It is desirable to use the metal wheel 03) of the second embodiment for the first metal wheel 10 that is fed out one after another, so that the stability in the generatrix direction is further improved, and all the metal wheels 10 will slide smoothly on the busbar.

Compared to conventional general metal wheels, the metal wheel of the present invention always exhibits stable behavior even under usage conditions where the direction and magnitude of external force are extremely irregular and unstable, and it can move on the busbar. It has the feature of sliding smoothly. Further, according to the present invention, since the vertical roller on one side of the metal wheel can be freely opened and closed, the bus bar and the metal wheel can be freely inserted and removed even after the bus bar is stretched, so that protection can be achieved. This makes it easier to erect and dismantle the nets, etc., and also ensures that the metal wheel and the busbar are secured while they are being secured, preventing troubles due to wheels coming off.

[Brief explanation of the drawing]

Fig. 1 is a front view of the gold car according to the present invention, Fig. 2 is a left side view thereof, Fig. 3 is a right side view thereof, Fig. 4 is a front view of the metal car Q3) according to the present invention, and Fig. 5 The figure is a side view of the left side,
Fig. 6 is a bottom view, Fig. 7 is a schematic perspective view showing one application example of the present invention, and Fig. 8 is a schematic perspective view showing a part thereof enlarged. Rope 6, 7-...Protective rope 8.9...Auxiliary rope 10...Golden wheel 11.
12...Horizontal roller 13, 14...Vertical roller 14&...Axle rod 15, 16...
...Horizontal frame board 17...Vertical frame board 20...
・Central gap 23...Patent attorney for cylindrical body Sousei Kamiyama B Kuni procedural amendment (method) % expression % Indication of incident 1985 patent application No. 122546 2 Name of invention rBOX type j metal car prisoner and ■ & the person making the correction.

Claims (1)

[Claims] Four horizontal rollers each supported by two upper and lower horizontal frame plates that are firmly connected to each other by a vertical frame plate and arranged in vertical and front-back positions with their axes oriented in the left and right directions, and between the above-mentioned upper and lower horizontal frame plates. It is equipped with a pair of vertical rollers (type A) supported by the front and back and placed at the left and right positions in the center of the front and back, or two pairs of vertical rollers (type B) placed at the front, back, left and right positions. The length of the gap between the rollers and the length of the gap between the left and right vertical rollers are set to be slightly longer than the outer diameter of the rope that is inserted into the gap in the front-rear direction, and One of these (A type) or one on either the left or right side of the two pairs of vertical rollers.
For the pair (B type), one end of the shaft rod, either the upper or lower end, is supported rotatably around the longitudinal axis, and a cylindrical body is loosely attached to the outer periphery of the other end, so that the cylindrical body is rotated in the axial direction. The rotation of the roller shaft rod is prevented and locked at one position, and the rotation prevention is released at the other position so that the rope can be inserted and removed from one side of the gap opened by the rotation. A box-shaped metal car.