JPH0217237Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is a wire adjustment stopper, more specifically, for the purpose of preventing falls during steel frame assembly work at high places at construction sites. A fixed part on the ground side and a steel frame used to stretch a parent net such as a wire between the steel frames to suspend or connect a safety belt, or to rebuild the steel frame. This relates to a wire adjustment fixture used when a wire or the like is stretched between the wire and the like.

(Prior art) Conventionally, in order to install a main net between steel frames at a construction site, as shown in Figures 7 and 8, one steel frame
A U-shaped metal fitting 2 is attached to a predetermined location by welding or other means, and the end of the main net 3 such as a wire is attached to this U-shaped metal fitting 2.
It was passed through a shaped metal fitting 2 and bent inverted, and the overlapping portions of the ends of the main net 3 were tightened and fixed with a plurality of U-shaped bolts 4.

Alternatively, as shown in Fig. 9, check the spacing between each steel frame in advance, prepare a main net 3 with a length corresponding to this spacing, bend the ends of the main net 3, and attach the U-shaped bolts 4. A carabiner 5 is attached to the ring-shaped tip, and the carabiner 5 is engaged with the U-shaped metal fitting 2 fixed to the steel frame 1, and the main net 3 is moved between the steel frames 1 and 1. It was hung on a rack.

(Problems to be solved by the invention) However, in the conventional method of stretching the main net described above, tightening work must be performed with a plurality of U-shaped bolts 4 while the main net is bent, and the work must be done on-site. It took a lot of time to carry out the tensioning work, and it was difficult to pass the main net 3 under tension. Furthermore, the safety belt of the worker tends to loosen during work, which poses a problem in terms of ensuring safety.

In addition, even in the case of the latter conventional example using carabiners 5, it is necessary to check the spacing between the steel frames 1 and 1 in advance and adjust the main net 3 of various lengths to suit the site. In addition to taking time to prepare,
It was inconvenient because it could not be transferred to other sites, and there was also the problem that it was difficult to stretch the main net 3 without slack.

(Means for solving the problem) The wire adjustment stopper according to the present invention was devised in view of the above problems, and is used at the end of the wire, etc. to be stretched, and is used to adjust the tension of the wire, etc. A fixture for adjusting wires, etc., which locks the ends while adjusting the wire, etc., which has a through hole for inserting the wire, etc., and through holes for inserting the connecting rod at at least two places spaced apart in the direction in which the wire, etc. is stretched. The drilled first and second flat plate members are held and fixed in parallel at a predetermined interval on the proximal end side, and the inner edge of each through hole for passing a wire, etc. in the first and second flat plate members is chamfered. The first and second sliding pieces are machined and have a through hole for inserting wires, etc., a locking tool through hole, and a long hole for connecting rod insertion, similar to the through hole for connecting rod insertion. The sliding piece is held between flat plate members, and the through hole for inserting wires, etc. in the sliding piece has chamfered edges on both sides, and the connecting rod is inserted into the connecting rod insertion through hole and the long hole for connecting rod insertion. to connect and fix the first and second flat plate members,
A guide hole for guiding a wire, etc. is bored near the tip on the base end side of the first flat plate member, the wire, etc. is passed through the guide hole and the through hole for passing the wire, etc., and the sliding piece is inserted into the flat plate member. It is characterized in that the wire or the like is pressed and locked between the first and second flat plate members by holding the sliding piece by moving it toward the tip side.

In yet another embodiment of the present invention, on the proximal end side of the first and second flat plate members near the through-hole for passing wires, etc., on the outside of the first and second flat plate members,
A guide member for reducing the bending rate of the wire or the like is fixed to each of them, and in another embodiment, the end face of the distal end of the second flat plate member is connected to the base end of the locking through hole of the first flat plate member. It is located on the same side as the side end surface or on the proximal end side.

(Example) In FIG. 1 showing a longitudinal cross-sectional view of the wire adjustment stopper according to the present invention, the first flat plate member 6 located above and the second flat plate member 7 located below are set apart at a predetermined interval. They are fixed and held in parallel by welding on the base end 61 side, and a sliding piece 8 is sandwiched between the first flat plate member 6 and the second flat plate member 7. As a means for separating the first flat plate member 6 and the second flat plate member 7 at a predetermined distance, in the illustrated embodiment, the base end side end 71 of the second flat plate member 7 is bent. A predetermined spacing is maintained by bending.

In addition, as another means for maintaining the predetermined distance, a separate spacer (not shown) may be used as the first
It may be interposed between the second flat plate members 6 and 7, or it may be fixed using a rivet (not shown) containing a collar.

The first and second flat plate members 6, 7 have through holes 62, 72 for wire insertion and through holes 63, 64, 73, 74 for inserting rivets 9, 9 as connecting rods, respectively. The inner edges of the wire insertion holes 62 and 72 are chamfered and pressurized.

Further, the base end portion 61 near the wire insertion through hole 62, 72 on the outside of the first and second flat plate members 6, 7,
On the 71 side, a reinforcing bar 65 and an iron pipe 75 having a circular cross section are welded so as to be perpendicular to the length direction of the first and second flat plate members 6 and 7 as a guide member to reduce the bending rate of the wire 30. be.

A guide hole 66 for guiding the wire 30 is provided near the tip of the first flat plate member 6 on the side of the proximal end 61 to ensure the directional stability of the wire 30. Stretched wire 3
A through hole 67 is formed through which the tool 10 is passed when removing the 0.

A through hole 81 for wire insertion is bored approximately in the center of the sliding piece 8, and both upper and lower edges of this through hole 81 are chamfered. Also sliding piece 8
Elongated holes 82 and 83 for rivet insertion are bored at predetermined locations on both sides in the length direction, and these elongated holes 82,
83, a tool 10 for removing the wire 30 is located closer to the tip than the long hole 83 located on the tip side.
A tool through hole 84 is provided for passing the carabiner 5 through the tool hole 84.
A through hole 85 for a locking tool is drilled for locking.

Note that FIGS. 2 to 4 show plan views of the first flat plate member 6, sliding piece 8, and second flat plate member 7, respectively.

In order to assemble the wire etc. adjustment fitting using each of these members, the first flat plate member 6 and the second flat plate member 7 are welded and fixed.
Insert the sliding piece 8 between the second flat plate members 6 and 7, and insert the rivet insertion through holes 63, 73, 64, 74 and 82,
83 and then pass through the rivets 9, 9 to attach the first and second flat plate members 6, 7 to the rivets 9, 9.
At the same time, the sliding piece 8 can be slid only in the longitudinal direction.

Wire adjustment stopper A configured as above
In order to stretch the wire 30 between two steel frames using While stopping, the other end of the wire 30 is passed through the guide hole 66 of the first flat plate member 6 and through each wire insertion hole 62, 81, 72, and then the tip of the wire 30 is inserted in the direction indicated by the arrow B in FIG. Pull it toward the base end 71 as shown in FIG. By this tension, the slack in the wire 30 between the steel frames 1 and 1 can be removed, and the tension is applied in the direction in which the first and second flat plate members 6 and 7 and the sliding piece 8 are relatively separated. It was decided that
Since the rivets 9 are provided at two locations spaced apart in the tensioning direction of the wire 30, the wire insertion hole 81 of the sliding piece 8 moves relatively to the right in FIG. As shown in the figure, the wire insertion hole 81 of the sliding piece 8 presses the wire 30, and the wire 30 is inserted between the first and second flat plate members 6, 7. , the second flat plate members 6 and 7 are pressed and locked.

In such a wire adjustment stopper A, the inner edges of the wire insertion holes 62, 72 and both side edges of the wire insertion hole 81 are chamfered, as shown in FIG. As shown in FIG. 3, when the wire 30 is locked, the edge portion does not dig into the wire 30. Therefore, the wire 30 is not damaged and can be used many times. Further, as shown in FIG. 1, a guide hole 66 is provided near the tip of the base end 61 side of the first flat plate member 6, and after passing the wire 30 through the guide hole 66, the wire 30 is passed through the through holes 62, 72, 81. Since the wire 30 is designed to be locked at the end portions of the through-holes 62, 72, 81, the wire 30 has a wavy shape from bottom to top to bottom with respect to the stopper of the present invention. A strong frictional resistance is generated between the wire 30 and the edge of the guide hole 66, and the wire 30 is firmly locked. Since the wire 30 passes through the guide hole 66, the wire 30 passes through the guide hole 66.
Shaking, vibration, etc. of the stretched wire 30 are not transmitted to the portion of the wire 30 after passing through the wire 6.
Therefore, the portions of the wire 30 that are locked in the through holes 62, 72, and 81 are always in a stable state, and the locking of the wire 30 is stabilized, and the locked wire 30 is kept in a stable state during construction work. It will not come loose, improving worker safety.

Therefore, the wire 30 can be stretched easily, quickly and reliably, slack in the wire 30 can be reliably removed, and safety can be ensured during work such as steel frame assembly work. In addition, since the wire 30 can be pressed and locked at any position on the wire 30, it can be freely adjusted even if the distance between the steel frames 1 and 1 changes, and the trouble of adjusting the dimensions of the wire 30 can be saved. be able to. Further, since the work of bending the end of the wire 30 and tightening it with a U-shaped bolt or the like is unnecessary, the wire 30 is less likely to be damaged, and the wire 30 can be used repeatedly many times. Furthermore, when removing the wire 30, the tapered removal tool 10 is inserted into the tool holes 67, 84 of the first flat plate member 6 and the sliding piece 8, and the removal tool 10 is inserted in the right direction in FIG. By returning the moving sliding piece 8 to the left, the press-locked state of the wire 30 is released and the wire 30 can be easily removed from the wire adjustment stopper A.

In the above embodiment, rivets 9, 9 are used as the connecting rods, but the connecting rods are not limited to rivets, and bolts, nuts, etc. may also be used.

Further, in addition to the wire 30, a fibrous rope or the like may be used as the parent net, and in this case, the metal fitting A described above can be used in the same manner.

(Effects of the invention) As described above, if the main net is stretched using the wire adjustment stopper according to the present invention, the main net can be easily and reliably stretched in a tensioned state, and the guide holes can be tightened. By providing this, there is no room for the main net to become loose, and the safety of the workers can be ensured. In addition, since the main net can be pressed and locked at any position, it can be adjusted freely even if the spacing between the steel frames changes, and main nets of various lengths can be prepared to match the distance between the steel frames. In addition, the chamfering of the edges of the wire-insertion holes in the first and second flat plate members and the sliding piece makes it easier to use. Damage near the ends of the net can be reduced, and the main net can be used repeatedly many times. Furthermore, since wires and the like can be easily stretched, it can also be used when rebuilding steel frames, and the rebuilding can be done accurately and easily. In addition, since the fastener of the present invention has a three-piece structure consisting of the first and second flat plate members and the sliding piece,
It has an extremely simple and easy to assemble structure.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional side view of the embodiment of the present invention, Fig. 2 is a plan view of the first flat plate member, Fig. 3 is a plan view of the sliding piece, Fig. 4 is a plan view of the second flat plate member, and Fig. 5 is a plan view of the second flat plate member. The figure is a partially cutaway side view showing the state of use, FIG. 6 is a partially vertical side view showing the wire locked state, FIG. 7 is a schematic explanatory diagram showing the conventional example, and FIG. 8 is a partially enlarged view of FIG. 7. FIG. 9 is a partially enlarged side view showing another conventional example. 6...First flat plate member, 63, 64...Through hole for rivet insertion, 65...Reinforcement bar, 66...Guide hole, 7
...Second flat plate member, 73, 74...Through hole for rivet insertion, 75...Iron pipe, 8...Sliding piece, 81
...Through hole for wire insertion, 82, 83...Elongated hole for rivet insertion, 9...Rivet, 30...Wire.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A wire adjustment fitting used at the end of a stretched wire, etc., to lock the end while adjusting the tension of the wire, etc. First and second flat plate members, each having a through-hole for insertion and a through-hole for connecting rod inserted at at least two locations spaced apart in the direction in which the wire or the like is stretched, are placed in parallel at a predetermined distance from each other at the proximal end. The through holes for passing wires, etc. in the first and second flat plate members have chamfered inner edges, and the through holes for passing wires, etc., the through holes for fasteners, etc. A sliding piece having a connecting rod insertion hole and a long hole for connecting rod insertion in the same manner as the connecting rod insertion hole is sandwiched between the first and second flat plate members. The edge portion is chamfered, and a connecting rod is inserted into the connecting rod insertion through hole and the connecting rod insertion long hole to connect and fix the first and second flat plate members, and the first flat plate member A guide hole for guiding a wire, etc. is bored near the tip on the base end side of the plate member, and the wire, etc. is passed through the guide hole and through the through hole for passing the wire, etc., and the sliding piece is moved toward the tip side of the flat plate member. A fixture for adjusting wires, etc., characterized in that the wire, etc. is held by the sliding piece and is pressed and locked between the first and second flat plate members. (2) Utility model registration claim No. 1, wherein a guide member for reducing the bending rate of the wire, etc. is fixed to the base end side of the first and second flat plate members near the through hole for inserting the wire, etc., respectively. The wire adjustment stopper described in item 1. (3) The end face of the second flat plate member on the distal end side is connected to the first
The wire adjustment stopper according to claim 1 or 2, which is located on the same side as or on the side of the proximal end of the through hole for the fastener in the flat plate member.