JPS59187138A - Turnbuckle - Google Patents

Abstract

PURPOSE:To tension and relieve a wire of the tension in a short time by providing a temporary mechanism for stopping an operating lever in which a cam and a projection of a nut are brought into contact when the operating lever is pivoted to separate the nut and cam. CONSTITUTION:When an operating lever 15 is pivoted in such a direction that it is raised to the upper surface of a block body 4, the tip of a pair of cams 16 is separated from the top surface of a nut 12, and a projection 19 of the nut 12 engages a bearing 17 of the cam 16. Then the nut 12 is drawn upward to release the engagement of the nut 12 and a threaded rod 7 to allow tensioning a wire which is connected to a connector 8 at an end of the threaded rod 7. When the lever 15 is moved downward to engage the second engagement part 23 with a bending area 21 of a leaf spring 20, the nut 12 is engaged and held with the threaded rod 7. As threads 11 have a vertical planar face, the threaded rod 7 is free to move toward the inside of a frame body 1, allowing tensioning the wire. By this, tensioning and relieving the wire of tension can be done in a short time by operating the lever 15.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a turn knot used for tensioning ropes, wires, chains, etc. for securing loads.

A conventional turnbuckle has reverse screw holes formed at both ends of a long and slender frame body, and a pair of screw rods are screwed into each of the screw holes. Since the threaded rod is moved in the opposite direction to tension the wire connected to the end of the threaded rod, it is very time consuming to tension and release the tension of the wire.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a turnbuckle that allows tensioning and tension release of wires and the like to be performed in a short time.

The structure of the present invention is such that a threaded rod insertion hole extending in the length direction of the frame body and a nut fitting hole intersecting with the threaded rod insertion hole are provided in the flock body at the end of the elongated frame body, and the above-mentioned screw The cross-sectional shape of the thread of the slideable threaded rod inserted into the rod insertion hole is triangular with one side being a vertical plane, and a half nut body that can be engaged with this threaded rod is inserted into the nut fitting hole. A spring is provided which is slidably fitted and presses the nut body towards the threaded rod, and the operation lever for engaging and disengaging the nut body is swung against the block body. A cam piece that engages with the outer periphery of the nut body to hold the nut body in an engaged state is formed on this operating lever, and the operating bar is swung to remove the nut body from the nut body. The nut is provided with a protrusion that engages with the cam piece when the cam piece is separated, and a second mechanism is provided that stops the operation lever when the cam piece is in contact with the nut body. It is a feature.

Embodiments of the present invention will be described below with reference to accompanying drawings.

As shown in FIGS. 1 to 6, the elongated frame body 1 is
It is provided with opposing side levers 2, 2, an end plate 3 is provided between one end of the side plate 2, and a block body 4 is provided between the other end of the side plate 2.

The block body 4 is formed with a threaded rod insertion hole 5 penetrating from the front end surface to the rear end surface, and a nut fitting hole 6 communicating with the threaded rod insertion hole 5 is provided on the top surface. A threaded rod 7 is slidably inserted into the threaded rod insertion hole 5, and a connecting tool 8 is attached to the end of the threaded rod 7 protruding outward from the frame body 1 and the end plate 3 of the frame body 1. .

Note that as the connector 8, a stopper that can be engaged with a hook, a lashing pot, or the like can be adopted.

A gear 9 rotatably supported by the block body 4 engages with the threaded rod 7, and when the gear 9 is rotated by a rotation operation of a handle that engages with the end of the gear shaft 10, the threaded rod 7
moves in the axial direction.

The cross-sectional shape of the thread 11 of the threaded rod 7 is triangular (see FIG. 3), and one surface of the thread 11 is a vertical surface perpendicular to the axis of the threaded rod 7. A half nut body 12 that can be engaged with the threaded rod 7 is slidably inserted into the nut fitting hole 6 of the block body 4.

Both 11b sandwiching the nut fitting hole 6 are provided on the upper surface of the block body 4.
A pair of support pieces 13, 13 are provided at the position, and an operating lever 15 for engaging and disengaging the nut body 12 is supported in a swinging manner by a pin 14 passed between the support pieces 13. When the operating lever 15 is swung parallel to the tension rod 7, the tips of the pair of cam pieces 16 provided at the end of the operating lever 15 come into contact with the 4- face of the nut body 12, and the nut body 12 is held in engagement with the threaded rod 7.

A receiving portion 17 is formed on one side of the cam piece 16, and this receiving portion 17 is an engagement &
When the projections 19 provided on both upper sides of the nut body 18 are engaged with the protrusions 19, and the operating lever 15 is swung to separate the tip of the cam piece 16 from the nut body 12, the recording portion 17 is engaged. engages with the protrusion 19, and in the engaged state, the operating lever 15
When the nut body 12 is further swung in the same direction, the nut body 12 can be pulled up.

One end of a leaf spring 20 is fixed to the front upper surface of the nut body 12, and a bent portion 21 formed at the other end of the leaf spring 20 is in pressure contact with the outer periphery of the tip of the operating lever 15. On the other hand, a first retaining part 22 , a second engaging part 23 , and a third engaging part 24 are arranged in a circular direction on the outer periphery of the tip of the operating lever 15 . Natsu body 12
When it comes into contact with the upper surface, the first engaging part 22 engages with the bent part 21, and when the receiving part 17 of the cam piece 16 is brought into contact with the protrusion 19, the second engaging part 23 engages with the bent part 21. match. Further, when the receiving part 17 and the protruding part 19 of the cam piece 16 are engaged and the nut body 12 is pulled up to the disengaged position with respect to the threaded rod 7, the third engaging part 24 engages with the bent part 21, The operation lever 15 is temporarily fixed at the swing position by the engagement between each engaging portion and the bent portion 21.

The turnbuckle shown in the embodiment has the above-mentioned structure, and this turnbuckle engages, for example, a lashing pot or the like fixed to the deck of the hull with the connecting tool 8 of the frame body 1, while the end of the threaded rod 7 The end of the load tightening wire is connected to the connector 8 to tension the wire.

Now, when the operating lever 15 is swung in the direction of standing up on the upper surface of the block body 4, the tips of the pair of cam pieces 16 are separated from one surface of the nut body 12, and during the oscillation, the cam pieces 16
The protrusion 19 of the nut body 12 engages with the receiving portion 17 of 6 (see FIG. 7). Then, when the operating lever 15 is further swung in the same direction, the nut body 12 is pulled down by the engagement between the receiving part 17 and the protrusion 19, and the nut body 12 and the screw frame are engaged with each other. can be canceled (see Figure 8).
.

In this state, when the threaded rod 7 is pushed inward into the frame body 1, the wire connected to the connector 8 at the end of the threaded rod 7 is pulled, making it possible to straighten the wire.

” 1. After making the wire into a straight line, the operating lever 15 is pushed down and the second engaging portion 23 is connected to the bent portion 21 of the plate spring 20.
When engaged with the nut body 12 due to the elasticity of the plate spring 20,
is held in engagement with the threaded rod 7 (see Figure 7).
.

By the way, one surface of the thread 11 of the threaded rod 7 is a vertical surface, and the nut body 12 that engages with this threaded rod 7 has a root spring 2.
Since it is held in the engaged state by the elasticity of 0, the seventh
If an attempt is made to move the threaded rod 7 to the outside of the frame body 1 (111+) in the state shown in the figure, the vertical surfaces of the threads 11 engage, making it impossible to move the threaded rod 7 to the outside of the frame body 1.

Furthermore, when the threaded rod 7 is pushed in the axial direction toward the inside 911 of the frame body 1, a gap is created between the inclined surfaces of the threads 11, so the threaded rod 7 cannot move freely into the frame body 1. be.

Therefore, when a handle is attached to the gear shaft 10 and the gear 9 is rotated in a rotatable direction in the state shown in FIG. 7, the threaded rod 7 moves toward the inside of the frame body 1, thereby tensioning the wire. I can do it.

After the wire is tensioned by the above operation, when the lever 15 is pushed down and the bent part 21 of the leaf spring 20 is engaged with the first engaging part 22,
The tip of the cam piece 16 comes into contact with the upper surface of the nut body 12, and the nut body 12 is held in a state of engagement with the twisting rod 7.
(see Figure 3), by rotating the frame body 1,
The engagement between the nut body 12 and the threaded rod 7 causes the tension rod 7 to move in the axial direction, making it possible to further tension the wire.

Note that by swinging the operating lever 15 in the upright direction, the nut body 1
2 away from the threaded rod 7, the tension in the wire can be instantly released.

FIG. 9 shows another embodiment of the turnbuckle according to the present invention.

A kick spring 25 is fitted onto the pin 14 passed between the support pieces 13 of the block body 4, and a protrusion 27 formed on the coil portion 26 of the kick spring 25 forms a hole (
(not shown) is inserted into the rotation stopper 1, and one end of the locking spring 25 is brought into contact with the J-face of the nut body 12, and the nut body 12 is pressed toward the threaded rod 7. are doing. Further, the other end of the kick spring 25 is engaged with the operating lever 15 to deflect the operating lever 15 in the upright direction, and the operating lever 15 is held in a state where the cam piece 16 is 141F away from the nut body 12.

Further, the operating lever 15 is equipped with an engaging spring 28, and when the operating lever 15 is swung and the cam piece 16 presses the nut body 12, the bent portion 29 of the engaging spring 2B engages. It engages with the protrusion 19 of the lever 18 to hold the operating lever 15 in the swiveling position.

In the above embodiment, the operating lever 15 can be stopped and held at the position where the cam piece 16 presses the nut body 12 and at the position where the cam piece 16 separates from the nut body 12, and the cam piece 16 presses the nut body 12. The threaded rod 7 can be moved in the load tightening direction while the nut body 12 is engaged with the threaded rod 7.

As described above, in this invention, when the imitation lever is swung, the nut body engages or disengages from the threaded rod, and in the disengaged state, the threaded rod can be moved in the axial direction. Therefore, load tightening wire connected to the end of the threaded rod,
It is possible to quickly tension and release tension on ropes, chains, etc., and lashing work can be carried out efficiently.

In addition, by separating the cam piece of the operating lever from the nut body and stopping the operating lever at a position where the cam piece corresponds to the protrusion of the nut body, the threaded rod is moved toward the inside of the frame body (111). Because it can be tightened wire,
You can put tension on ropes, chenos, etc. to a certain extent,
As a result, the load tightening wire can be tightened by a slight rotation of the frame body.
It is possible to strongly tension the rope and cheno.

[Brief explanation of the drawing]

Figure 1 is a front view of the turnbuckle according to the present invention, Figure 2 is a front view of the turnbuckle according to the invention;
The figure is a plan view of the same as the above, FIG. 3 is a w cross-sectional front view showing the main parts of the above, FIG. 4 is a vertical cross-sectional side view of the same as that of FIG. 3, FIG. 9 is an exploded perspective view showing a part of the same operating lever, nut body, block body and threaded rod; FIGS. 7 and 8 are longitudinal cross-sectional views of the operating lever in FIG. 3 in an activated state; The figure is a vertical front view showing another embodiment same as the above. DESCRIPTION OF SYMBOLS 1...Frame body, 4...Block, 5...Threaded rod insertion hole, 6...Nut fitting hole, 7...Threaded rod, 8...Connector, 11...Thread thread, 12... Natsuto body, 15.
・Operation lever, 16...Cam piece, 17...Receptacle, 18
... protrusion, 20... plate.

Claims (1)

[Claims] At the end of the elongated frame body, a threaded rod (4) is formed through the front and back holes of the prong body at the end of the elongated frame body, and on the outer periphery of the prong body there is a spot that communicates with the threaded rod ear hole marked 1. A fitting hole is provided, and the marking rod can be slid into the insertion hole. The threaded thread of the threaded rod has a triangular cross-sectional shape with one side being a vertical plane, and a half-split nut body that can be engaged with this threaded frame number is slidably fitted into the nut fitting hole. A sprinter pushes this nut body up towards the frame number:
An operating lever for engaging and disengaging the main body as described above is swingably attached to the above-mentioned prong body. A cam piece is provided on the nut body to hold the cam piece in a state where it is aligned, and when the cam piece is separated from the nut body by swinging the operating lever.
-Providing a protrusion that engages with one side of the cam, and performing the operation as described above-
(operate at the position where the cam piece presses the nut body)
Turn noggle equipped with temporary fixing mechanism to stop and hold 1-