JPH0447039Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention is suitable for transporting vehicles and heavy objects loaded onto aircraft such as helicopters, airplanes, and airships, as well as large transport aircraft, onto parking lots, ship decks, etc. This invention relates to a mooring device for mooring an aircraft, etc., moored with a chain.

[Conventional technology]

When parking an aircraft such as a helicopter or airplane, the aircraft is tethered to the apron or deck with a chain to prevent contact or overturning due to wind or turbulence. This mooring consists of two chains connected to the aircraft side and the mooring side, and one locking device that connects the ends of both chains, and multiple sets are used to move the vehicle body in each direction. As an improvement to this locking device, the applicant previously proposed
We proposed the technology shown in the specification of Utility Model Application No. 176601/1983 (Kohei No. 3-54000).

This technology connects an aircraft engagement chain to one end, and a pair of side plates facing each other at the other end of the main body of the locking device, and connects a chain connection fitting to connect the apron connection chain to a pin between both side plates. The handle provided on the metal fitting is engaged with the chain stopper of the locking device body to lock the chain connecting metal fitting to the locking device main body, and the chain connecting metal fitting is attached to the chain connecting metal fitting toward the outer end of the metal fitting. A cross-shaped slot is formed in the chain pulling direction which is inclined at a slant, and a cross-shaped slot perpendicular to this, and a chain feed-out opening communicating with the slot is formed at the outer end of the chain connecting fitting. The aim is to shorten the removal and mooring work.

[The problem that the idea attempts to solve]

However, the above-mentioned locking device only connects both chains and does not have a structure that gradually winds up and tensions the chain. Therefore, the operator must constantly maintain tension in the chain and use sufficient force to tighten the locking device. The chains had to be connected to each other, which placed an excessive burden on the workers, and it was sometimes not possible to obtain the necessary tension in the chain. Mooring work, especially on the deck where the ship is shaking, becomes a major undertaking and requires many people to do it over time.

The present invention was developed against the background of the above circumstances, and aims to provide a mooring device for mooring an aircraft, etc., which can be easily moored in a short time and by a small number of people.

[Means to solve the problem]

In order to achieve the above object, the mooring anchor of the present invention connects the ends of both chains connected to the moored side of the aircraft etc. and the moored side of the apron etc. In a tether for mooring an aircraft, etc., in which a pair of side plates are installed in parallel, one chain is connected to one end of the tether body, and between the side plates at the other end of the tether body, the chain is wrapped around and rotated. The child is rotatable on a spindle, and a guide block is fixedly installed.
The outer periphery of the winding rotor is provided with link fitting holes in which the horizontal links and vertical links of the other chain are alternately fitted and winding, and the guide block has horizontal links and holes that guide the winding. The link guide groove with the vertical link is formed into an arc surface centered around the support shaft of the wrapping rotor, and supports the rear end surface of the vertical link wrapped around the wrapping rotor to regulate rotation of the chain. A chain stopper is provided between the side plates so as to be retractable into the link guide groove.

In addition, in order to finely adjust the tension of both chains connected to the locking device, a slide plate is interposed between the side plates on one end of the locking device body, and from one end of the locking device body to the outer end of the slide plate. protrude to connect the one chain, and form one end side of both side plates so that the distance between the longitudinal edges thereof is narrower than the distance between the longitudinal edges of the slide plate. The longitudinal edges are made to protrude from the longitudinal edges of one end side of both side plates, and a ring-shaped grip is rotatably but immovably fitted on one end side of both side plates so as to be rotatable and immovable in the longitudinal direction of the side plates. male screw,
Furthermore, female threads are formed on the inner circumferential surfaces of the grippers to engage with the male threads and cause the slide plate to protrude and retract from the locking tool body.

[Effect]

The other chain wound around the winding rotor is restricted from moving out by a chain stopper that supports the rear end surface of the vertical link, so that the wound chain does not slip out from the locking device. Therefore, even if the worker takes his hand off the chain, the wrapped state is maintained, and the worker can save up his/her surplus strength and pull the chain with sufficient force, making it easy to obtain the required tension of the chain. At the same time, regardless of the mooring location,
Work can be done in a short time with a small number of people.

In addition to the above-mentioned retaining structure, a slide plate connected to one chain is interposed between the side plates on one end of the locking device body, and this slide plate rotates the gripper fitted externally to both side plates. If the locking tool is moved in and out of the locking tool body, the tension of both chains connected to the locking tool can be finely adjusted.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

In the locking tool 1, a slide plate 5 that slides between the both side plates 2, 2 is locked at one end side of the locking tool main body 3, which has a pair of side plates 2, 2 arranged in parallel. It is provided so that it can appear and retract in the longitudinal direction of the tool body 3,
One chain 6 having a hook 6a at one end is connected to a mounting hole 5a bored in the outer end of the slide plate 5 protruding from one end of the lock main body 3.

On the other end side of the locking device body 3, a winding rotor 7 is rotatably provided between the side plates 2, 2 on a support shaft 8, and a guide block 9 is connected to the connecting bolt 10 of the side plates 2, 2. It is fixed at . Similarly to the chain 6, the other chain 11, which has a hook 11a at one end, connects these winding rotors 7.
It is detachably connected to the locking tool main body 2 by a guide block 9.

The winding rotor 7 is a deformed hexagonal column having alternating large and small planes, and the chain 11 is wound around link fitting holes 12 formed in these planes. The link fitting hole 12 is formed by alternately connecting a wide and shallow horizontal link hole 12a and a vertical link hole 12b which is narrower and deeper than the link hole 12a on the above-mentioned large and small planes. When wrapping, the horizontal link 11b of the chain 11 is fitted into the horizontal link hole 12a, and the vertical link 11c of the chain 11 is fitted into the vertical link hole 12b by about half of the thickness or width, respectively.

A link guide groove 13 is formed in the guide block 9 to guide the winding of the chain 11 described above. This guide groove 13 is shown in FIGS.
As shown in the figure, a wide guide surface 1 for the horizontal link 11b
3a, and a narrow guide surface 13b for the vertical link 11c recessed in the center of the wide guide surface 13a. It is formed by a circular arc surface.

Then, when the end of the chain 11 on the connection side opposite to the hook attachment side is inserted through the opening on the other end side of the locking tool main body 3 while rotating the winding rotor 7,
While the outer surfaces of both links 11b and 11c are guided by the guide surfaces 13a and 13b of the guide groove 13, the horizontal link 11b is inserted into the horizontal link hole 12a, and the vertical link 11c is inserted into the horizontal link hole 12a.
are fitted into the vertical link holes 12b and wound around the winding rotor 7 one after another, and the end on the connection side is pulled out to the upper opening side of the locking tool main body 3.

Between the ends of the locking device main body 3, a chain stopper 15 is pivotally supported on both side plates 2, 2 by a support shaft 14.
The chain stopper 15 is provided close to the inner part of the guide block 9, and on the rotating side of the chain stopper 15.
The release lever 16 that engages with the connecting bolt 1
The chain stopper 15 and the release lever 16 are pivotally supported by the side plates 2, 2 at 7, and a coil spring 18 is compressed between the chain stopper 15 and the release lever 16 to spring them.

The chain stopper 15 allows the chain 11 to be wound around the chain 11 and prevents the chain 11 from coming out by preventing it from coming out. The protruding piece 15a is attached to the chain stopper 15.
is made to project onto the narrow guide surface 13b of the link guide groove 13 by being resiliently sprung by the coil spring 18, and is supported by the guide block 9. This locking protrusion 15a has a flank surface 15b on the chain rotation side of both inclined surfaces that engage with and disengage from the vertical link 11c.
Also, the chain drawer side is used as a receiving surface 15c.

That is, as the chain 11 is wound around the winding rotor 7, the flank 15b is pushed in the rotating direction of the chain stopper 15 by the end face of the vertical link 11c, and the locking protrusion 15a locks the coil. Since the spring 18 is pushed back counterclockwise in the guide surface 13b in the counterclockwise direction in FIG. One of them has its rear end surface supported by a receiving surface 15c located on the non-rotating side of the locking protrusion 15a.

Even if the chain 11 wound in this manner applies a return force in the pulling direction to the vertical link 11c supported on the receiving surface 15c, this return force will come into contact with the guide block 9 and prevent rotation. Since the locking protrusion 15a of the chain stopper 15 to be regulated acts in the clockwise direction, which is the non-rotating direction, as shown in FIG. 1, the rotation is regulated.

When the release lever 16 rotates and pulls out the chain 11 when releasing the mooring, the locking protrusion 15
The release lever 16 is used to move the lever a backward from the narrow guide surface 13b to release the engagement with the vertical link 11c, and is urged by the coil spring 18.
is rotatably and slidably attached to the locking tool body 3 by inserting the connecting bolt 17 into a long hole 16b formed in the base portion 16a.

At one end of the base portion 16a, a locking plate 16c that is locked to locking claws 2a, 2a protruding from the side plates 2, 2 of the locking tool main body 3, and a finger hook portion 16d are formed, and at the other end. On one side is an engagement piece 16e that engages with the engagement pin 15d of the chain stopper 15, and on the other end is a stopper protrusion 16 that engages with the guide block 9 to restrict rotation of the release lever 16.
f and 16f are provided in a protruding manner.

The coil spring 18 is a torsion spring having linear latching portions 18b and 18c at both ends of the coil portion 18a, with one latching portion 18b being connected to the chain stopper 15 and the other latching portion 18
c are respectively engaged and attached to the base portion 16a of the release lever 16, and the chain stopper 1
5 is biased by the elastic force of the coil spring 18 to the position where it is supported by the guide block 9 as described above, and the release lever 16 is pressed against the locking tool main body 3.
It is biased in both directions, one end side and one opening side.

When the release lever 16 is in the solid line position in FIG. 1, where the locking plate 16c is locked with the locking claws 2a, the locking portion 18b of the coil spring 18
However, the chain stopper 15 is activated and rotated clockwise in FIG.

Winding of the chain 11 is performed with the locking protrusion 15a in a protruding state, and the locking protrusion 15a prevents the movement of both links 11b and 11c regardless of the position of the release lever 16 when the chain 11 is wound. While repeating retreat and protrusion, the rear end surface of one vertical link 11c is supported and the chain 11 is prevented from moving out.

Next, when the finger hook 16d of the release lever 16 in the locked state is pushed toward the other end of the locking tool body 3, the release lever 16 is guided by the connecting bolt 17 and moves the distance corresponding to the long hole 16b. The locking plate 16c and the locking claws 2a, 2a are slid out of engagement, and further rotated clockwise in FIG. 1 about the connecting bolt 17 by the elastic force of the coil spring 18. Then, the stopper protrusions 16f, 16f stop at the imaginary line position where they come into contact with the guide block 9.

On the other hand, the chain stopper 15, which was biased in the direction of the guide block 9 by the coil spring 18,
As the release lever 16 rotates clockwise in FIG.
In order to push d, it rotates counterclockwise in FIG. 1 about the support shaft 14 against the elastic force of the coil spring 18, and stops at the imaginary line position.

The slide plate 5 is a strip-shaped body with both longitudinal edges parallel to each other, and male screws 5b each having a lead angle are formed on both longitudinal edges, and a long hole 5c is formed in the longitudinal direction of the center. It is formed. on the other hand,
The side plates 2, 2 are formed such that the distance between the longitudinal edges of the one end side on which the gripper 4 is externally fitted is narrower than the distance between the longitudinal edges (external threads 5b, 5c) of the slide plate 5. ing.

The slide plate 5 includes a spacer 19 sandwiched between the side plates 2, 2 in the elongated hole 5c, and stopper pins 20 connecting the side plates 2, 2 on both sides thereof.
21, and by the spacer 19, it slides in the longitudinal direction without tilting on both side plates 2, 2, and the stopper pins 20, 21 abut against the ends of the elongated holes 5c to regulate the sliding amount of the slide plate 5. . Moreover, by disposing the slide plate 5 between the side plates 2, 2 in this way, both longitudinal edges of the slide plate 5, that is, the male screws 5b, 5b are connected to the side plates 2, 2.
2.Protrudes from both longitudinal edges of one end.

The gripper 4 is a ring body having a through hole approximately the same diameter as the distance between the longitudinal edges of the slide plate 5, and has fitting recesses 2b, 2b formed on the outer surfaces of the side plates 2, 2.
It is rotatable and non-movably fitted onto the side plate in the longitudinal direction. The inner peripheral surface of the through hole of the gripper 4 has a female thread 4a that engages with the male threads 5b, 5b of the slide plate 5.
is engraved, and the slide plate 5 moves in and out from one end of both side plates 2, 2 by rotation of the gripper 4.

Next, the operation of this embodiment configured as described above will be explained.

Before the mooring operation, the locking tool 1 locks the locking plate 16c of the release lever 16 to the locking claws 2a, 2a of the locking tool main body 3 in advance, and the chain stopper 15
The locking protrusion 15a is made to protrude from the narrow guide surface 13b of the link guide groove 13. And the locking tool 1
The hook 6a of the chain 6 connected to the is latched to either the moored side of the aircraft or the moored side such as the apron or deck, and then the hook 11a of the chain 11 is latched to either the other side. Then, feed the connecting end into the link fitting hole 12.

As described above, the fed chain 11 has the end face of the vertical link 11c aligned with the chain stopper 15.
While pushing away the locking protrusion 15a, press the horizontal link 11.
b and the vertical link 11c are respectively connected to the horizontal link hole 12a.
and the vertical link holes 12b, respectively, and are wound around the winding rotor 7.

The hooked connecting side end is pulled out to the open side surface above the locking tool main body 3, and the operator repeats winding to tension both chains 6, 11, and further rotates the gripper 4 to slide it. Fine adjustment is performed by moving the plate 5 into and out of the locking tool main body 3.

The chain 11 in the middle of winding is a vertical link 11c.
Since one of the rear end surfaces is supported by the receiving surface 15c located on the non-rotating side of the locking protrusion 15a, the unwinding is regulated, and even if the operator releases his hand when repeating winding, the chain 11 will come out. It also does not loosen even after being tightened to a predetermined tension.

Next, when releasing this mooring, the release lever 16 in the locked state is pushed toward the other end side of the locking tool main body 3, and the locking protrusion 15a of the chain stopper 15 is moved to the narrow guide surface 13b. When the chain 11 is retracted from the position, the chain 11 is released and can be pulled out in the opposite direction to the winding.

Since the chain 11 that is pulled out from the locking tool 1 is under a tension load, conventionally, careful removal work was required to prevent it from popping out forcefully, but in this embodiment, the chain 11 is reversed when it is pulled out. Since the hanging rotor 7 acts as a resistance and absorbs the load, the momentum is softened.

As described above, in this embodiment, since the locking tool 1 always maintains the wrapped state of the chain 11, the mooring work is easy, and can be carried out in a short time by a small number of people regardless of the mooring location, and the desired result can be achieved. Tension can be easily obtained.

Furthermore, since this embodiment includes a slide plate that can be operated in a rolling manner, fine adjustments can be made.

FIG. 4 shows another embodiment of the present invention,
The locking tool 30 of this embodiment is a chain stopper 31
The shape of the release lever 32 is slightly different from that of the above embodiment, and the guide block 9 is fixed to the side plates 2, 2 of the locking device body 3 with two bolts or pins 33, 34. is constructed in substantially the same manner as the above embodiment.

The chain stopper 31 has its lower part, which serves as a pivot point, pivoted to the guide block 9 via a support shaft 35.
The release lever 32 is rotatably and slidably held by inserting a connecting bolt 17 into a long hole 32b through a base portion 32a disposed between both side plates 2, 2 of the locking device main body 3. There is.

The latching parts 18b and 18c of the coil spring 18 are engaged with the upper part of the chain stopper 31 and the lower part of the release lever 32, and the chain stopper 31 is moved toward the link guide groove 13 side by the elastic force of the coil spring 18. A locking protrusion 3 protruding from the
1a is urged to protrude into the guide groove 13, and the release lever 32 is further pushed into the locking plate 32c.
is engaged with the locking claws 2a, 2a of the locking tool body 3, and is biased so as to maintain the protruding state of the locking protrusion 31a.

The chain stopper 31 has an engaging pin 31d protruding from the upper side surface, and a locking protrusion 31a is formed with a clearance surface 31b and a receiving surface 31c.

On the other hand, the release lever 32
2a, and a locking plate 32 protruding from the base portion 32a.
c, a finger hook 32d protruding from the upper part of the locking plate 32c, an engagement piece 32e that pushes the chain stopper 31 via the engagement pin 31d, and when the release lever 32 is rotated, It has a stopper protrusion 32f that comes into contact with the upper surface of the guide block 9 to restrict the amount of rotation thereof.

The engagement piece 32e of the release lever 32 is provided with a cam surface 32g formed by waving large and small circular arcs so as to engage with the engagement pin 31d of the chain stopper 31.

This cam surface 32g allows the release lever 32 to
When the engaging piece 32e is rotated in the direction of the imaginary line from the solid line position in FIG.
The chain stopper 31 is rotated counterclockwise in FIG. 4 while changing the engagement position with the chain stopper 1d.
The release lever 32 has a stopper protrusion 32f.
The engagement piece 32e of the chain stopper 31, which is restricted from rotating at the imaginary line position where it contacts the upper surface of the guide block 9 and is interlocked with the release lever 32, retreats from the link guide groove 13, and the restriction on the chain 11 is released. Ru.

In this embodiment, the amount of rotation of the chain stopper 31 and the release lever 32 is increased, and the latching portion 18b of the coil spring 18 is brought into contact with the upper part of the chain stopper 31 that is far away from the support shaft 35, so that the coil spring 18 is rotated by a large amount. The elastic force is made to work effectively on the chain stopper 31.

Further, since the cam surface 32g provided on the engagement piece 32e of the release lever 32 is engaged with the engagement pin 31d of the chain stopper 31, the rotation operation of the release lever 32 can be performed lightly and smoothly.

[Effect of idea]

As explained above, the tethering device of the present invention is
One chain is connected to one end of the locking device body, which has a pair of side plates arranged side by side, and a winding rotor is rotatably provided on a support shaft between the side plates at the other end of the locking device body, and a guide block is provided. A link fitting hole is provided on the outer periphery of the winding rotor, through which the horizontal links and vertical links of the other chain are alternately fitted and winding, and the guide block is provided with link fitting holes for guiding the winding. The link guide groove between the horizontal link and the vertical link is formed in an arcuate surface centered on the support shaft of the wrapping rotor, and supports the rear end surface of the vertical link wrapped around the wrapping rotor, thereby supporting the chain. Since the chain stopper that regulates rotation is provided between the side plates so that it can move in and out of the link guide groove, the locking device always maintains the chain wrapped state, making mooring work easier and reducing the amount of work required regardless of the mooring location. It can be done in a short time by a number of people, and the desired tension can be easily obtained.

In addition to the above configuration, a slide plate is interposed between the side plates on one end side of the locking device body, and the outer end of the slide plate protrudes from one end of the locking device body to connect the one chain. At the same time, one end side of both side plates is formed such that the distance between the longitudinal edges thereof is narrower than the distance between the longitudinal edges of the slide plate,
The longitudinal edge of the slide plate is made to protrude from the longitudinal edge of one end side of both side plates, and a ring-shaped grip is rotatably but immovably fitted on one end side of both side plates. A thread is carved on the directional edge, and a female thread is carved on the inner circumferential surface of the gripper, which engages with the male thread and causes the slide plate to retract from the locking device body, so the amount of chain overhang can be finely tuned. Fine adjustments can be made.

[Brief explanation of drawings]

1 to 3 show an embodiment of the present invention,
Fig. 1 is a cross-sectional front view of the locking device, Fig. 2 is a plan view, Fig. 3 is a perspective view, Fig. 4 is a longitudinal sectional view showing the main part of the other end of the locking device, and Fig. 5 is a longitudinal sectional view showing the main part of the other end of the locking device. A perspective view of the guide block, and FIG. 6 is a sectional front view of a locking device showing another embodiment. 1, 30... Locking tool, 2... Side plate, 3... Locking tool body, 4... Gripping, 4a... Female thread, 5... Slide plate, 5b... Male thread, 6, 11... ...Chain, 7...Wrap rotor, 8...Spindle, 9...Guide block, 11b...Horizontal link, 11c...
Vertical link, 12...Link fitting hole, 12a...Horizontal link hole, 12b...Vertical link hole, 13...Link guide groove, 13a...Wide guide surface, 13b...Narrow guide surface, 15, 31 ...Chain stopper, 1
5a, 31a... Locking protrusion piece, 15b, 31b...
Relief surface, 15c, 31c... Reception surface, 16, 32
...Release lever, 18...Coil spring.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. For mooring aircraft, etc., in which the ends of both chains connected to the moored side of the aircraft, etc. and the moored side, such as an apron, are connected and both chains are stretched. In a locking device, one chain is connected to one end of the locking device body with a pair of side plates arranged side by side, and a winding rotor can be rotated on a spindle between the side plates at the other end of the locking device body. At the same time, a guide block is fixedly installed, and a link fitting hole is provided on the outer periphery of the winding rotor in which the horizontal links and vertical links of the other chain are alternately fitted and wound. The link guide groove of the horizontal link and the vertical link that guides the winding is formed in an arcuate surface centered on the support shaft of the winding rotor, and the rear end surface of the vertical link wrapped around the winding rotor is formed. A fastening device for mooring an aircraft, etc., characterized in that a chain stopper for supporting and regulating the movement of the chain is provided between side plates so as to be retractable into a link guide groove. 2. A slide plate is interposed between the side plates on one end side of the locking device main body, and the outer end of the slide plate protrudes from one end of the locking device body to connect the one chain, and the one end side is attached to both side plates. are formed so that the distance between their longitudinal edges is narrower than the distance between the longitudinal edges of the slide plate, so that the longitudinal edge of the slide plate protrudes from the longitudinal edge of one end side of both side plates, and one end of both side plates is formed. A ring-shaped clamp is rotatably fitted on the side but not movable in the longitudinal direction of the side plate, and a screw is attached to the longitudinal edge of the slide plate.
2. A use for mooring an aircraft, etc. according to claim 1, wherein female threads are formed on the inner circumferential surface of the clamping member to engage with the male threads and cause the slide plate to protrude and retract from the main body of the locking device. Locking device.