JP2019027098A - Emergency detachment metal fitting and wire rope type guard fence - Google Patents

Abstract

To provide an emergency detachment metal fitting for connecting and detaching the cable end parts of two cables which can easily and quickly release the connection, and which also takes work safety into consideration, and a wire rope type guard fence using the same.SOLUTION: An emergency detachment metal fittings includes, at its one end side, an attachment and dropping-off prevention part which is attached to a cable end part of one cable and prevents dropping-off from the cable end part of the one cable, and also includes, at its the other end side, a connecting and detaching part serving as a connection part for connecting a cable end part of the other cable, and having a slide engagement part 121 and a slide restricting member 122 for engaging sliding of the slide engagement part 121.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an emergency detachment fitting for connecting and detaching the ends of two rope bodies and a wire rope type protective fence using the same.

2. Description of the Related Art Turnbuckles are widely used as metal fittings for connecting the ends of two cable bodies and adjusting the tension.
A technique related to the turnbuckle is disclosed in Patent Document 1.

JP-A-5-296296

The turnbuckle is an excellent member capable of adjusting the tension with a simple structure. However, since the turnbuckle is based on a structure in which a bolt is tightened with a screw, it cannot be said that the turnbuckle is good in terms of workability for removal.
For example, in a wire rope type protective fence used on a highway or the like, it is necessary to quickly open a part of the wire rope type protective fence in order to handle an accident at the time of a vehicle collision. In such a case, if you try to open the wire rope type protective fence with the turnbuckle (cancel the connection of the wire rope), it will require more than three people to hold the joint, so more than three people will be required for the work. The work time was also required.
Accident handling and recovery are required to be fast and safe.

  In view of the above points, the present invention is an emergency detachment fitting for connecting and detaching the ends of two cable bodies, and requires only one person for easy and quick connection. An object of the present invention is to provide an emergency detachable metal fitting that can be released and that takes into account work safety and a wire rope type protective fence using the same.

(Configuration 1)
An emergency detachment fitting for connecting and detaching the ends of two cord bodies, attached to one end of the cord body end of one cord, and the cord of the one cord An attachment / drop-off prevention part for preventing the drop-out from the body end part, and a connecting part for connecting the end part of the other cable body to the other end side, comprising: An emergency detachment fitting comprising: a connecting / disconnecting portion having a slide engaging portion that slides and engages, and a slide restricting member that restricts the slide.

(Configuration 2)
The emergency detachment fitting according to Configuration 1, wherein the attachment / drop-off prevention portion includes a swing mechanism that swings with respect to a cable body end of the one cable body.

(Configuration 3)
The slide engagement portion is configured by an annular member attached to a cable body end of the other cable body and a retaining member inserted through the annular member. Emergency removal bracket.

(Configuration 4)
A connection comprising a first plate member and a second plate member, inserted through an annular member attached to a cable body end of the one cable body, and connecting one end side of the first plate member and the second plate member The emergency detachment metal fitting according to any one of configurations 1 to 3, wherein the attachment / drop-off prevention portion is configured by a member.

(Configuration 5)
The emergency detachment metal fitting according to Configuration 4, wherein the connection member is fixed to the second plate member, and the first plate member is rotatably provided to the connection member.

(Configuration 6)
6. The emergency detachment according to Configuration 5, wherein the first plate member is provided so as to be rotatable in a direction around the connecting member or to an axis orthogonal to the connecting member. Hardware.

(Configuration 7)
The slide engagement portion is configured by an annular member attached to a cable body end of the other cable body, and a retaining member fixed to the second plate member and inserted through the annular member. The emergency removal metal fitting in any one of the structures 4 to 6 to do.

(Configuration 8)
The first plate member has an insertion hole through which the retaining member is inserted, and the slide restricting member is attached to a distal end portion of the retaining member that protrudes through the insertion hole. The emergency removal metal fitting in any one of 7 to 7.

(Configuration 9)
The emergency detachment metal fitting according to any one of configurations 1 to 8, further comprising a slide restriction member drop-off prevention member that prevents the slide restriction member from dropping off.

(Configuration 10)
The emergency removal metal fitting in any one of the structures 1-9 characterized by providing a turnbuckle.

(Configuration 11)
A wire rope type protective fence comprising the emergency removing metal fitting according to any one of configurations 1 to 10.

(Configuration 12)
A wire rope type protective fence in which a plurality of cable bodies are stretched, wherein the emergency removing metal fittings are provided offset between adjacent cable bodies. fence.

  According to the emergency removing bracket of the present invention and the wire rope type protective fence using the same, the slide restricting member is removed and the slide engaging portion is slid (actually, tension is applied and high frictional force is applied between the members. Therefore, the connection can be released by striking and sliding with a hammer or the like, so that one person can be easily and quickly released from the connection. In addition, the attachment / drop-off prevention part prevents the cable body from falling off the end of the cable body, which suppresses the scattering of the member, and is excellent in safety.

The figure which shows the emergency removal metal fitting of embodiment which concerns on this invention The figure which shows the emergency removal metal fitting of embodiment The figure which shows the wire rope type protective fence which uses the emergency removal metal fitting of the embodiment The figure explaining the removal work (opening of a wire rope type protective fence) of the emergency removal metal fitting of an embodiment The figure which shows the conventional wire rope type guard

  Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. In addition, the following embodiment is one form at the time of actualizing this invention, Comprising: This invention is not limited within the range.

  1 and 2 are diagrams showing an emergency removal metal fitting according to an embodiment of the present invention. FIG. 1 (a): top view, FIG. 1 (b): side view (however, the structure can be easily understood). Therefore, the first plate member 111 and the second plate member 112 are shown in cross section), FIG. 1 (c): bottom view, FIG. 2 (a): engagement of the annular member (jaw bolt) and the retaining member. FIG. 2B is a side view showing a connection removed state.

The emergency detachment metal fitting 1 of the present embodiment is a connecting tool excellent in workability of the detachment while connecting the end portions of the two cable bodies, and as a basic configuration thereof,
An attachment / drop-off prevention unit 11 attached to the end of the cable body of one cable body, and preventing the one cable body from falling off the cable body end part;
A connection part for connecting the cable body end part of the other cable body, and having a slide engagement part 121 and a slide limiting member (lynch pin) 122 for locking the slide of the slide engagement part 121.・ Removal part 12,
Is provided.
It is a simple task of sliding the slide engaging portion of the connecting / disconnecting portion 12 (actually, tension is applied and a high frictional force is generated between the members, so that it is struck by a hammer or the like) and the worker It can be quickly removed by one person, and the attachment / drop-off prevention part 11 prevents the rope from dropping off, so that the parts are not scattered during the removal operation and are excellent in safety. .

As shown in FIGS. 1 and 2, the emergency detachment metal fitting 1 of the present embodiment includes two plate members, a first plate member 111 and a second plate member 112, and prevents attachment / dropping at both ends thereof. A part 11 and a connection / removal part 12 are provided.
In the present embodiment, a jaw bolt (annular member) is used as the cable end fitting of the connecting cable body, and the attachment / drop-off prevention part 11 is attached to the jaw bolt 114 which is the cable end metal fitting of one cable body, In the other cable body, the connecting / disconnecting portion 12 is attached using the jaw bolt 1212.

The attachment / drop-off prevention unit 11 is inserted into the first plate member 111, the second plate member 112, and the jaw bolt (annular member) 114, and connects to the first plate member 111 and the second plate member 112. And composed of
The connection member 113 is a columnar member in a basic form, is fixed to the second plate member 112 on the lower end side, and includes a fastening member 1131 on the upper end side. The connection member 113 is fixed to the second plate member 112 by arranging the connection member 113 with the reinforcing material RP penetrating through the both sides of the second plate member 112 and welding these members to each other. By doing.
The fastening member 1131 is detachably provided by a bolt 1132. In the present embodiment, the fastening member 1131 is a member having a semicircular side view.
The connection member 113 fixed to the second plate member 112 is inserted into the jaw bolt (annular member) 114 and further inserted into the insertion hole 111h1 formed in the first plate member 111, and then the connection member 113 is inserted. By attaching the fastening member 1131 to the upper end of the emergency detachment bracket 1, the emergency detachment fitting 1 is attached to one of the cable bodies.
The insertion hole 111h1 formed in the first plate member 111 is formed so that the connection member 113 can be inserted, and the fastening member 1131 cannot be inserted.
Further, the insertion hole 111h1 loosely fits the connection member 113 so that the first plate member 111 can rotate in the horizontal direction and the vertical direction. That is, the first plate member 111 can rotate in a direction (horizontal direction) with the connecting member 113 as an axis, and can also rotate in an axis perpendicular to the connecting member 113 (vertical direction). is there. Since the connection member 113 has a semicircular shape in a side view, the rotation in the vertical direction can be smoothly performed.
Further, the attachment / drop-off prevention part 11 is such that the connection member 113 is loosely fitted to the jaw bolt (annular member) 114, whereby the emergency removal fitting 1 can swing with respect to the end of the rope body. Yes (with swing mechanism). By making the emergency detachable metal fitting 1 swingable with respect to the end of the cable body, workability at the time of connecting work is improved.

The connection / removal unit 12 includes a slide engagement unit 121 and a lynch pin (slide limiting member) 122 that locks the slide of the slide engagement unit 121.
The slide engagement portion 121 includes a jaw bolt (annular member) 1212 and a retaining member 1211 inserted through the jaw bolt 1212.
The retaining member 1211 is a member whose basic form is a columnar shape (in this embodiment, a quadrangular column), and is fixed to the second plate member 112 on the lower end side, and includes a hole through which the lynch pin 122 is inserted on the upper end side. The fastening member 1211 is fixed to the second plate member 112 by providing the fastening member 1211 with the reinforcing material RP penetrating through the both sides of the second plate member 112 and welding these members to each other. By doing.
The retaining member 1211 fixed to the second plate member 112 is inserted into the jaw bolt (annular member) 1212 and further into the insertion hole 111h2 formed in the first plate member 111, and then the washer W ( By attaching the washer) and attaching the lynch pin 122 at the upper end of the retaining member 1211, the emergency removal fitting 1 is attached to the other cable body.
The insertion hole 111h2 formed in the first plate member 111 is formed so that the retaining member 1211 can be inserted, and the lynch pin 122 or the washer W cannot be inserted.
Note that the wire 131 is attached to the knob ring 1221 of the lynch pin 122, and the wire 131 is attached to the first plate member 111 with a screw 132. This prevents the lynch pin 122 from falling off or being lost (the wire 131 and the screw 132 constitute a slide limiting member dropout preventing member).

As described above, the emergency detachment metal fitting 1 of this embodiment has a U-shaped member in a side view by fixing the columnar connection member 113 and the retaining member 1211 to both ends of the second plate member 112. The both ends of the U-shape are passed through the ring-shaped end fitting (jaw bolt in this embodiment) of the cord body, and the U-shaped opening is closed by the first plate member 111. In this way, the ropes are connected.
And it attaches to one cable body so that it may not drop by the attachment / drop-off prevention part 11 mentioned above, and it attaches easily to the other cable body by the connection / removal part 12. Is.

  Next, an operation of opening the wire rope type protective fence (releasing the connection of the wire rope) in the wire rope type protective fence using the emergency removal fitting 1 of the present embodiment will be described.

FIG. 3 is a view showing the appearance of a wire rope type guard fence 2 using the emergency removal fitting 1 of the present embodiment (a connected portion using the emergency removal fitting 1), and FIG. It is a figure for demonstrating 1 part).
Work 1
As shown in FIG. 4A, first, the lynch pin 122 is removed from the retaining member 1211.
Work 2
Next, as shown in FIG. 4B, the first plate member 111 is rotated in the vertical and horizontal directions to be removed from the retaining member 1211 and shifted.
Work 3
Finally, as shown in FIG. 4 (c), the retaining member 1211 is struck by a hammer and slid to be pulled out of the jaw bolt (annular member) 1212 (in addition to the retaining member 1211, the second plate member 112 is removed). You may strike with a hammer).
In this way, the connecting portion can be removed by a very simple three-step operation.

As described above, according to the emergency removal fitting 1 of the present embodiment, the connection can be easily and quickly released by only one operator.
In the conventional wire rope type protective fence 200 as shown in FIG. 5, when the wire rope type protective fence is to be opened by removing the turn buckle, it is necessary to turn the tight turn buckle and remove it. As time is required and personnel are required to control the rotation, it is not possible to sufficiently meet the speed required for handling accidents.
On the other hand, according to the emergency removal metal fitting 1 of the present embodiment, the connection can be easily and quickly released by only one worker, and the accident processing and the recovery thereof can be performed quickly.
In addition, the attachment / drop-off prevention part prevents the cable body from falling off the end of the cable body, which suppresses the scattering of the member, and is excellent in safety. That is, in the wire rope 21 stretched with high tension, the connection is instantaneously released by hitting it with a hammer, so there is a possibility that the member may be slightly exposed at the moment of the release of the connection. According to the metal fitting 1, the members are prevented from falling off by the attachment / drop-off prevention part 11, so that each member is prevented from being scattered and is excellent in safety.

Moreover, since the wire rope type guard fence 2 using the emergency removal metal fitting 1 of this embodiment is provided with the emergency removal metal fitting 1 being offset between adjacent cords as shown in FIG. Workability such as removal work is good.
That is, as shown in FIG. 3, the emergency removal metal fittings 1 are alternately arranged, so that the emergency removal metal fittings 1 do not overlap vertically in adjacent wire ropes 21 and are unlikely to interfere with each other. The removal work of the member 111 and the work of hitting with a hammer are easy to do. Further, even when a plurality of persons perform the removal work of each emergency removal fitting at the same time, the worker can work without overlapping (the wire rope type protective fence can be opened more quickly). Here, an example in which the emergency detachment fittings 1 are staggered every other wire rope is taken as an example, but all the attachment positions in the vertical direction may be different.

In addition, in the wire rope type guard fence 2 using the emergency removal metal fitting 1 of this embodiment, a turnbuckle may be provided separately as means for applying tension to the wire rope.
Or you may comprise the emergency removal metal fitting 1 and a turnbuckle integrally. For example, a turn buckle is formed on either the left or right jaw bolt portion. (In the emergency removal fitting 1 of the present embodiment, the screw of the jaw bolt on both sides is made a reverse screw so that the emergency removal fitting 1 is A mechanism similar to that of the turnbuckle can be obtained by rotating the jaw bolt by rotating it).

In the present embodiment, the configuration is such that the end of the cord body is sandwiched from both sides by the two plates (the first plate member 111 and the second plate member 112). Absent. For example, if there is no problem in strength, the first plate member 111 may be used instead of the first plate member 111 (the upper end so that the connecting member 113 and the retaining member 1211 do not come off from the respective jaw bolts). A slide restricting member (fastening member or lynch pin) may be formed in the portion).
The basic technical idea of the present invention is:
“It is a connecting tool that is excellent in workability of detachment while connecting the ends of the two cords,
Attached to the end of the cable body of one cable body, an attachment / drop-off prevention part for preventing the cable body end of the one cable body from falling off,
A connecting part for connecting the cable body end of the other cable body, comprising a slide engaging part and a slide restricting member for locking the slide of the slide engaging part; Prepare. "
Therefore, as long as it is based on this idea, the specific shape and the like of each member may be appropriately determined without being limited to the embodiment.

  In the present embodiment, a jaw bolt is used as an example of the annular terminal fitting of the cable body, but the present invention is not limited to this. For example, it may be one using an eyebolt or one obtained by processing an end of a rope body.

1. . . Emergency removal bracket 11. . . Mounting / drop-off prevention part 111. . . First plate member 112. . . Second plate member 113. . . Connecting member 114. . . Jaw bolt (annular member)
11. . .
12 . . Connecting / disconnecting part 121. . . Slide engaging portion 1211. . . Retention member 1212. . . Jaw bolt (annular member)
122. . . Lynch pin (slide limiting member)
2. . . Wire rope type protective fence

Claims (11)

An emergency detachment fitting for connecting and removing the ends of two cable bodies,
At one end side, it is attached to the end of the cable body of one cable body, and includes an attachment / drop-off prevention part for preventing the cable body end of the one cable body from falling off,
A connecting portion for connecting the end of the other cord body to the other end, a slide engaging portion that slides and engages with the end of the cord, and a slide limit that limits the slide An emergency removing bracket comprising a connecting / disconnecting portion having a member.   The emergency detachment metal fitting according to claim 1, wherein the attachment / drop-off prevention unit includes a swinging mechanism that swings with respect to a cable body end of the one cable body.   3. The slide engagement portion is configured by an annular member attached to a cable body end of the other cable body and a retaining member inserted through the annular member. 4. Emergency removal fittings. A first plate member and a second plate member;
The attachment / drop-off prevention part is configured by a connecting member that is inserted into an annular member that is attached to a cable body end of the one cable body and that connects one end side of the first plate member and the second plate member. The emergency removal metal fitting in any one of Claim 1 to 3 characterized by these.   The emergency detachment metal fitting according to claim 4, wherein the connection member is fixed to the second plate member, and the first plate member is rotatably provided to the connection member. .   6. The emergency according to claim 5, wherein the first plate member is provided so as to be rotatable in a direction about the connecting member as an axis or rotatable relative to an axis orthogonal to the connecting member. Removal bracket. An annular member attached to a cable body end of the other cable body;
A retaining member fixed to the second plate member and inserted through the annular member;
7. The emergency detachment metal fitting according to claim 4, wherein the slide engagement portion is constituted by the above.   The first plate member is formed with an insertion hole through which the retaining member is inserted, and the slide restricting member is attached to a distal end portion of the retaining member that protrudes through the insertion hole. The emergency removal metal fitting in any one of 4-7.   The emergency removal metal fitting according to any one of claims 1 to 8, further comprising a slide restriction member drop prevention member that prevents the slide restriction member from falling off.   The emergency removing metal fitting according to any one of claims 1 to 9, further comprising a turnbuckle.   A wire rope type protective fence comprising the emergency detachment metal fitting according to any one of claims 1 to 10.

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