JPH0547169Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The invention is for holding a pair of lifting wires at a predetermined interval, which are used when lifting suspended objects such as concrete U-shaped grooves and blocks. This invention relates to a spacing device.

(Prior Art) Conventionally, as shown in FIG. 2, a hanging wire is constructed by connecting a hook 3 to the lower part of a wire 2 and forming a hanging ring 4 by knitting the wire into a ring at the upper end of the wire 2. 1, and the hooks 3, 3 of each hanging wire 1, 1 are screwed to both sides of a heavy hanging object, for example, a U-shaped groove 5 made of concrete.
7, and the hanging rings 4, 4 of each hanging wire 1, 1 are engaged with a suspension hook 10 of a crane (not shown) or the like.
By raising the U-shaped groove 5, the U-shaped groove 5 was lifted.

(Problem to be Solved by the Invention) In the above-mentioned conventional device, each of the hanging wires 1, 1 was simply engaged with the suspension hook 10 and the side of the U-shaped groove 5 at the upper and lower ends thereof. During suspension, each suspension wire 1, 1 is connected from the suspension hook 10 to U.
The groove 5 is tapered toward both sides.

Therefore, the middle part of each wire 2, 2 is connected to the U-shaped groove 5.
There have been drawbacks such as damage caused by touching the corners of the eye bolt 3, and irregular loads such as kinking and twisting occurring at the engaging portion between the hook 3 and the eye bolt 7, which may cause damage to these parts.

Furthermore, if an attempt is made to rotate the U-shaped groove 5 around the eye bolt 7 while the U-shaped groove 5 is suspended, the rotating end of the U-shaped groove 5 collides with each wire 2, 2, causing the U-shaped groove 5 to rotate. There was a drawback that the groove 5 could not be turned upside down.

This invention prevents the middle part of a pair of hanging wires from coming into contact with a hanging object, and also stabilizes the hanging wire's anchor to engage the hanging object, thereby increasing the durability of the wire and anchoring device. To provide a distance maintaining device for lifting wires, which can increase the distance between the lifting wires and easily reverse the ends of the suspended objects.

(Means for Solving the Problems) In order to achieve the above object, the present invention is constructed as follows.

That is, a pair of slide pipes are slidably fitted on the left and right sides of the holding pipe, a regulating mechanism is provided to regulate the sliding of each slide pipe, and a locking piece is slid on the outer end of each slide pipe. A through hole is formed radially through the overlapping portion of each locking piece and each slide pipe to which it fits, and a wire connected to a locking tool at the lower end is slid into each through hole. The structure is such that a driving tool is movably inserted through the slide pipe and moves each locking piece in the axial direction with respect to each slide pipe.

(Function) Since the present invention has the above configuration, when each slide pipe is slid in the axial direction with respect to the holding pipe, each wire moves in the direction of contact and separation together with the locking piece, and the distance between the two is reduced. Change.

When the regulating mechanism is activated, sliding of each slide pipe with respect to the holding pipe is regulated, and the distance between the wires is maintained at a predetermined value.

Additionally, when the locking piece is moved in the axial direction with respect to the slide pipe using the drive tool, the wire at the part inserted into the locking piece is biased laterally with respect to the wire at the part inserted into the slide pipe. , the wire is held in the cutting direction by the through-hole portions of both. As a result, each of the slide pipes is fixed to each wire so as not to be movable in the longitudinal direction thereof.

(Example) An example of the present invention will be described below based on FIG. 1.

In FIG. 1, 1, 1 is a hanging wire,
These hanging wires 1, 1, like the one in FIG. It becomes.

A distance maintaining device 11 is attached to the intermediate portion of each of the wires 2, 2 to maintain a predetermined distance between them.

In the spacing holding device 11, a pair of slide pipes 13, 13 are slidably fitted on the left and right sides of the holding pipe 12, and regulating mechanisms 14, 14 are attached to the overlapping portions of these pipes, respectively, for regulating the sliding movement of the two.

The upper regulating mechanism 14, 14 has a plurality of adjustment holes 12a, 12b at predetermined intervals in the longitudinal direction of the holding pipe 12.
2a... are formed to penetrate radially, and adjustment bolts 11, 11 are inserted radially into the slide pipes 13, 13.
5, 15 are selectively inserted into the adjustment holes 12a, 12a . . . and wing nuts 16, 16 are screwed onto the tip ends of the adjustment holes 12a, 12a .

Furthermore, a pair of locking pieces 17, 17 are slidably fitted to the outer ends of each of the slide pipes 13, 13, and through holes 13 are respectively inserted into the overlapping portions of the locking pieces 17, 17.
a, 17a are formed in the radial direction, and each of these through holes 1
The wires 2, 2 described above are fitted into the wires 3a, 17a so as to be slidable in the radial direction.

Driving tools 18, 18 are attached to the outer ends of each of the locking pieces 17, 17 to move them in the axial (left and right) direction with respect to each slide pipe 13, 13.

These driving tools 18, 18 are connected to each locking piece 17, 17.
Bolts 19, 19 are fixed to protrude outward from the outer ends of the bolts 19, 19, and the outer ends of each bolt 19, 19 are exposed outward from each slide pipe 13, 13, and a thrust washer 20 is attached to each of these exposed parts. , 20 and nuts 21, 21 are screwed together.

After inserting the aforementioned adjustment bolts 15, 15 into the predetermined adjustment holes 12a of the holding pipe 12,
By screwing the wing nuts 16, 16 together and setting the amount of extension of each slide pipe 13 to a predetermined value,
The distance between the wires 2, 2 is set to be suitable for the width of the U-shaped groove 5 described above.

Also, by tightening each nut 21, 21, each locking piece 17, 17 is attached to each slide pipe 1.
3 and 13, and clamp the wires 2 and 2 that have passed through both in the cutting direction, thereby locking the spacing device 11 to each of the wires 2 and 2 at any point in the longitudinal direction thereof. do.

Further, in FIG. 1, reference numeral 5 denotes a U-shaped groove made of concrete, and a cylindrical metal insert 6 is horizontally arranged and embedded in both walls of the longitudinally intermediate portion of the groove, and the inner circumference of this metal insert 6 is A fitting hole 6a is formed by this, and a female thread 6b is formed deep inside the fitting hole 6a.

Reference numeral 25 denotes a locking tool that fits and locks into the fitting hole 6a, and is configured as follows.

That is, a body 27 of a rod-shaped main body 26 is formed into a hexagonal column shape, and a small-diameter fitting body 28 is attached to the right side of this body 27.
are integrally formed.

The fitting body 28 is the fitting hole 6 of the U-shaped groove 5 described above.
It is formed to have an outer diameter and length to fit into the fitting hole 6a, and a male thread 28a is formed at the tip (right end) thereof to be screwed into the female thread 6b of the fitting hole 6a.

A large-diameter, disc-shaped contact seat 29 is rotatably attached to the right end of the body 27, and a connecting ring 30 is rotatably attached to the left end of the body 27.

This connecting ring 30 is formed by forming a connecting pin 30b protruding radially outward on a part of the outer periphery of a ring portion 30a that fits into the body 27, and includes a thrust washer 31 and a thrust washer 31 attached to the left end of the body 27. It is prevented from coming off by the nut 32.

Further, the engagement ring 33 is rotatably fitted to the connecting pin 30b. This engagement ring 33 is formed by forming an annular ring portion 33b projecting upward on the outer periphery of a connecting seat 33a that fits into the connecting pin 30b, and a stopper tube 33 at the end (upper part) of the connecting pin 30b.
4 is fixed by welding to prevent it from coming off, thereby forming the aforementioned locking tool 25.

When lifting the U-shaped groove 5, first,
The fitting body 28 of the locking tool 25 is inserted into the fitting hole 23 of the U-shaped groove 5.
and the locking body 25 is attached to the U-shaped groove 5 by screwing the male thread 28a into the female thread 6b of the fitting hole 23.

Next, by operating the regulating mechanism 14 of the spacing device 11, the length, that is, the width of the wires 2, 2 of each hanging wire 1, 1, is adjusted to the spacing between the locking devices 25 attached to both sides of the U-shaped groove 5. Adjust the height of the spacing device 11 accordingly and operate the drive tool 18 to adjust the height of the spacing device 11.
In other words, the distance to each hook 3, 3 is adjusted so that it is slightly longer than one half of the length of the U-shaped groove 5.

Then, the hook 3 of each of the above-mentioned hanging wires 1, 1,
3 is the ring portion 33b of each engagement ring 33, 33,
33b, the hanging rings 4, 4 are also engaged with the suspension hook 10 of the crane, and the suspension hook 10 is raised.

Then, each of the hanging wires 1, 1 has a portion extending from the spacing device 11 to the hooks 3, 3 at the lower end.
The U-shaped groove 5 is suspended in a parallel and hanging state with a width slightly wider than the width of the U-shaped groove 5.

When a rotational moment is applied to the U-shaped groove 5 in the horizontal direction, the U-shaped groove 5 rotates around the ring portion 30a of the locking tool 25, and the U-shaped groove 5 can be easily turned upside down. You can do it.

(Effect of the invention) Since the invention is constructed as described above, the lower part of the hanging wire is always held parallel to the width of the hanging object by the spacing device, and each hanging wire and the hanging object are are stably engaged, and the wire portion does not come into contact with the hanging object, resulting in an effect that the durability of the hanging wire is increased.

Further, the spacing device and the wire are locked by moving a locking piece fitted to the slide pipe in the axial direction and clamping the wire in the cutting direction between the locking piece and the slide pipe. Therefore, the operation becomes simple, a strong locking force can be obtained, and the operation of engaging and disengaging the distance maintaining device and the wire can be easily performed.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional side view of a main part showing an embodiment of the present invention, and FIG. 2 is a cross-sectional side view of a main part showing a conventional example. 1... Hanging wire, 2... Wire, 3... Hook, 4... Hanging ring, 5... U-shaped groove (hanging object),
6...Insert metal fitting, 6a...Fitting hole, 6b...
... Female thread, 10 ... Suspension hook, 11 ... Spacing device, 12 ... Holding pipe, 12a ... Adjustment hole, 13 ... Slide pipe, 13a ... Through hole, 14 ... Regulation mechanism, 15 ... Adjustment bolt, 1
6... Wing nut, 17... Locking piece, 17a... Through hole, 18... Drive tool, 19... Bolt, 20...
...Thrust Washer, 21...Natsuto, 25...
Locking tool, 26...main body, 27...body, 28...
Fitting body, 28a...male thread, 29...button seat, 3
0...Connection ring, 30a...Ring part, 30b
... Connecting pin, 31 ... Thrust washer, 32
... Nut, 33 ... Engagement ring, 33a ... Connection seat, 33b ... Ring portion, 34 ... Stop ring.

Claims (1)

[Scope of utility model registration request] A pair of slide pipes are slidably fitted on the left and right sides of the holding pipe, a regulating mechanism is provided to regulate the sliding of each slide pipe, and a locking piece is slidably attached to the outer end of each slide pipe. A through hole is formed in the radial direction at the overlapping part of each locking piece and each slide pipe to which it fits, and a wire connected to the lower end of the wire can be slid into each through hole. 1. A spacing maintaining device for lifting wires, characterized in that a driving tool is provided which is inserted into the holder and moves each locking piece in the axial direction with respect to each slide pipe.