JP3437095B2 - Angle drop attachment / detachment device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an angle drop attachment / detachment device used for inserting and arranging an angle drop blocking a water channel such as a sewerage facility or an agricultural water channel into a guide wall.

[0002]

2. Description of the Related Art In sewerage facilities, agricultural flume facilities, cultivating and fishery facilities, etc., is the maintenance, inspection or repair of the facilities performed with the treatment layers and flumes of each facility emptied?
Alternatively, for the purpose of adjusting the amount of water in the irrigation canal, etc., the canal is dammed by a corner drop stacked at a required height. This corner drop is inserted into a vertical guide groove provided on the wall surface of the water channel for blocking, and a plurality of sheets are stacked to form an impermeable wall of a required height. In addition, when changing the flow rate, the corner drop immersed in the water is raised.

When the above corner drop is lifted or suspended, a corner drop attachment / detachment device is used. As such a device, the one described in Utility Model Registration No. 2518616 is known.

In the device described in the above publication, a pair of guide grooves arranged to face each other are engaged with a corner drop having a handle on the upper surface to move up and down, so that the handle is locked to remove the corner drop. A corner drop attachment / detachment device for lifting or hanging,
The apparatus includes a device main body having both ends inserted into the guide groove, and a suspension device that removably locks the handle. The suspension device has a handle upward from an opening formed in the device body. A locking tool that is swingable between an allowable position that allows entry and a locking position that closes the opening to lock the handle, and the locking tool between the allowable position and the locking position. A switching lever for selectively switching is provided, and the weight of a weight member provided on the switching lever allows the locking device to be biased toward the allowable position side.

When the corner drop attachment / detachment device is used to suspend the corner drop to a predetermined position, the handle is locked by a locking tool and the switching lever is operated to adjust the weight of the weight member. , Energize the locking tool so that it swings toward the allowable position. At this time, since a force is exerted downwardly on the locking tool due to the angled suspension, the locking tool maintains the locked position against the biasing force of the weight member.

In that state, the corner drop is lowered along the guide groove. When the corner drop reaches the bottom of the guide groove or the upper surface of the corner drop already arranged, the downward movement of the corner drop is stopped. Further, when the angle drop attachment / detachment device is lowered, the angle drop handle moves relatively upward with respect to the angle drop attachment / detachment device, so that the locked state with the locking tool is released.

When the weight of the corner drop is released from the locking tool,
Since the locking tool is biased by the weight member, it rotates to the allowable position. After the locking tool has been rotated to the allowable position, if the corner drop-off device is raised, the locking tool does not engage with the handle. Will be placed on.

[0008]

When the corner drop is submerged in water, the work of removing the corner drop from the attachment / detachment device is performed underwater. However, since the locking tool and the weight member that presses the locking tool are exposed, they directly receive the flow of water. As a result, the locking device that is only pressed to the allowable position side by the weight of the weight member flaps due to the flow of water, and the weight and the switching lever whose pressing force decreases due to buoyancy force
It becomes easy to rotate carelessly.

As described above, if the locking tool flaps or the switching lever is rotated carelessly, the handle cannot be reliably removed from the locking tool, and the reliability of the device is reduced. Therefore, the present invention can reliably stop the locking tool at a predetermined position without the locking tool and the releasing means being underwater being affected by the flow of water at all.
The challenge is to ensure that each function is demonstrated and to improve the reliability of the device.

[0010]

The present invention takes the following technical means in order to achieve the above object. That is, the sloping attachment / detachment device of the present invention engages the shavings having a handle on the upper surface of a pair of guide grooves arranged so as to face each other, and locks the shavings so as to move up and down. An angle drop attachment / detachment device for hoisting or hanging, comprising: a device main body having both end portions inserted into the guide groove; and a suspending device that locks the handle detachably. A locking tool that is movable between an allowable position that allows the handle to enter upward through an opening formed in the main body of the apparatus and a locking position that closes the opening to lock the handle; Switching means for selectively switching the locking tool between the allowable position and the locking position,
Release means for moving the locking tool to the allowable position when the locking of the handle is released from the locking tool, and the locking tool and the unlocking means are housed in a casing attached to the apparatus main body. And the locking device includes a locking portion for locking the handle.
It is composed of a pressed part and is rotatably provided.
Also, the releasing means causes the pressed portion to move from above by its own weight.
A pressing body for pressing, and the pressing body is provided so as to be able to move up and down.
There is something to do.

[0011]

Further, in order to engage a corner drop having a handle on the upper surface with a pair of guide grooves arranged so as to face each other so as to move up and down, the handle is locked to lift or suspend the corner drop. An angle drop attachment / detachment device comprising: a device body having both ends inserted into the guide groove; and a suspending device that locks the handle detachably. The suspending device is formed in the device body. And an engaging position that allows the handle to move upward through the opening and a locking position that closes the opening to lock the handle, and the engaging position. And a locking position, and a releasing means for moving the locking tool to an allowable position when the locking of the handle is released from the locking tool. , and have a resilient member for urging the locking member to the allowable position direction, wherein
The locking device and the elastic body are attached to the casing of the device.
The handle is stored inside the handle and the handle is locked.
The lock part and the pressed part are
In addition, the releasing means causes the pressed portion to move to the elastic body.
The elastic force of the
However, the pressing body is provided so as to be movable up and down .

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 2, reference numeral 1 shows a declining attachment / detachment device according to an embodiment of the present invention.
Is a case where the plate-shaped corner drop 2 is placed, for example, on the bottom surface of the water channel or the corner drop 2 previously arranged in the water channel or the like, and when it is arranged in the water channel or the like. Used when removing.

Each corner drop 2 is inserted into and engaged with a guide groove 6 formed in an inner surface of a guide wall 5 formed by a part of a side wall of a water channel or the like and arranged to face each other. A pair of U-shaped handles 7 are provided on the upper surface of each corner drop 2 at a predetermined interval. In addition, escape bottoms (not shown) are formed on the lower surface of each corner drop 2 so that the handle 7 of the lower corner drop 2 does not get in the way when stacked.

The corner drop attachment / detachment device 1 has an elongated device body 8 whose both ends are inserted into the guide grooves 6. The apparatus main body 8 includes a pair of left and right base members 10 and a connecting member 11 that connects opposite ends of each base member 10.

As shown in FIGS. 6 and 7, each base member 10 has an upward U-shape which is composed of a bottom wall 12 and both side walls 13 rising upward from both edges of the bottom wall 12. A plurality of bolt holes 15 are formed at one end of each side wall 13 of each base member 10, and a bolt 16 is inserted into each bolt hole 15 so as to project to the outside of each side wall 13. .

Similar to the base member 10, the connecting member 11 is also composed of a bottom wall 17 and both side walls 18 rising upward, and the connecting member 11 is fitted from the lower side of each base member 10. That is, the bottom wall 17 of the connecting member 11 is located below the bottom wall 12 of each base member 10, and the connecting member 1
The side walls 18 of No. 1 are located outside the side walls 13 of each base member 10.

On both side walls 18 of the connecting member 11,
An elongated hole 19 through which the bolt 16 is inserted is formed along the longitudinal direction of the device body 8. A wing nut 20 is screwed onto each bolt 16, and both base members 10
The expansion and contraction of the device body 8 can be adjusted by changing the interval. The elongated hole 19, the bolts 16 and the wing nut 20 of the connecting member 11 constitute expansion and contraction adjusting means.

Reference numeral 22 denotes a pair of suspension devices for locking the handle 7 of the corner drop 2 to lift or suspend the corner drop 2 and are fixed to the base members 10. An opening 24 is formed at a position corresponding to the handle 7 on the bottom wall 12 of the base member 10 so that the handle 7 can be inserted therethrough.

As shown in FIGS. 1 and 3 to 5, each suspension device 22 has a casing 26 composed of front and rear walls 26a and 26b, side walls 26c and a ceiling wall 26d.
In the inside of 6, a locking tool 29 is swingably provided around a horizontal shaft 27 rotatably inserted in and supported by the casing 26. The locking tool 29 is formed of a plate-shaped body that is bent and formed in a substantially inverted shape so as to have a locking portion 29a and a pressed portion 29b.

Further, the locking tool 29 has an allowable position for allowing the handle 7 to enter the casing 26 through the opening 24, and a locking position for closing the opening 24 to lock the handle 7. It is designed to swing between. That is, the locking portion 29a is horizontal at the locking position and tilts upward at the allowing position. The length of the locking portion 29a is set longer than the length of the pressed portion 29b so that the locking portion 29a can be brought into the locking position by its own weight. Further, the width of the locking portion 29 a (the length in the longitudinal direction of the device body 8) is shorter than the opening length of the handle 7.

In the casing 26, a base portion of a substantially L-shaped pressing body 30 is provided so as to be vertically swingable via a shaft 32, and a downward pressing portion 30a of the pressing body 30 is provided.
Is abutted against the pressed portion 29b of the locking tool 29 from above. The shaft 32 has the opening 24.
Is located on the opposite side of the shaft 27 supporting the locking tool 29.

On the top wall 26d of the casing 26, there is provided a switching lever (switching means) 34 which is composed of a vertical shaft portion 34a and a horizontal handle portion 34b so as to be vertically movable and rotatable. There is. A lower portion of the shaft portion 34a is inserted into an insertion hole 33 formed in the pressing body 30, and a fixing plate 38 for holding the pressing body 30 from below is fixed to a protruding portion of the lower portion. Moreover, the pressing plate 35 is externally fitted to the shaft portion 34a, and the spring 36 as an elastic member is externally fitted to the shaft portion 34a so as to be located between the pressing plate 35 and the pressing body 30. Incidentally, here, the pressing member 30 and the spring 36 constitute a releasing means.

Locking pins 37a and 37b are respectively provided at upper and lower positions on the upper portion of the shaft portion 34a so that the switching lever 34 is moved up and down in the casing 26 to lock the locking pins 37a and 37b. So that the lock pins 37a and 37b can be located inside and outside the casing 26.
Is formed, and by rotating the switching lever 34, the locking pins 37a and 37b are moved to the casing 26.
The ceiling wall 26d can be locked from above or below.

One ends of wires 39 are connected to the opposite side walls 26c of the two casings 26,
Each of the other ends can be attached to, for example, a lower end portion of a chain 40 having an upper end portion suspended from a hook of a hoist crane.

Reference numeral 43 is a slide device for guiding the base member 10 inserted into the guide groove 6, and is provided on the other end side of each base member 10, respectively. As shown in FIGS. 8 and 9, the slide device 43 includes a base member 10
A slide body 44 is slidably fitted to the other end of the slide body from above. Each slide body 44 has a side wall 44a and a top wall 44b that come into contact with the inner surfaces of the side walls 13 of the base member 10.
It is formed in a downward U shape from and.

Further, elongated holes 41 are formed in both side walls 13 of the base member 10, and both side walls 44a of each slide body 44 are formed.
A bolt 42 that is inserted into the long hole 41 is provided in the projecting portion, and a wing nut 46 is screwed into the bolt 42.
The elongated hole 41, the bolt 42, and the wing nut 46 constitute expansion / contraction adjusting means.

A pair of arms 45 are swingably provided on the top wall 44b of each slide body 44. Each arm 4
5 has a disk-shaped base portion 45a, and the base portion 45a is polymerized. Concavo-convex engaging portions 47a are radially formed on the mutually facing surfaces of the base portions 45a.

In both arms 45, the concavo-convex engaging portions 47a are engaged with each other, and a butterfly bolt 48 is inserted through the center of each base portion 45a to fasten the butterfly bolt 48 to the slide body 44 side. As a result, the opening angle of the arm 45 can be adjusted.

A support portion 50 is provided at the tip of each arm 45, and a rolling wheel 51 as a guide member that rolls on the inner side surface 6a of the guide groove 6 is provided in the support portion 50 about a horizontal axis 53. It is supported. Further, the slide body 44 is provided with a rolling wheel 55 as a guide member that rolls along the bottom surface 6b of the guide groove 6. The concave-convex engaging portion 47a and the wing bolt 48 constitute an adjusting means for adjusting the distance between the rolling wheels 51.

The corner drop attachment / detachment device 1 of the present embodiment has the above-mentioned configuration, and the case of using the device 1 will be described below.

In the case of arranging the corner drop 2 by suspending it in a waterway or the like, first, a wing nut that connects the base member 10 and the connecting member 11 according to the distance between the corner drop 2 to be used. 20 is loosened, both base members 10 are withdrawn and withdrawn from the connecting member 11 to drop the hanging device 22 to match the handle 7 of the second member 2, and then each wing nut 20 is fastened to the connecting member 11. And the base member 10 are fixed.

Moreover, similarly, by operating the wing nut 46 for fixing the slide device 40, each base member 1 is moved so that the rolling wheel 55 rolls on the bottom surface 6b of the guide groove 6.
The slide device 40 is adjusted to move back and forth with respect to 0. Further, the wing bolt 48 is operated to adjust the opening angle of the arm 45 so that the rolling wheel 51 rolls on the inner surface 6a of the guide groove 6.

Further, the switching lever 34 is lifted to lock the lower locking pin 37a on the upper surface of the top wall 26d of the casing 26. At this time, the fixed plate 38 of the switching lever 34
Since the pressing body 30 is lifted upwards, the locking tool 29 is not pressed by the pressing body 30 and is in the locking position by its own weight (see FIG. 3A).

In this state, when the attachment / detachment device 1 is dropped from above the attachment 2 and the opening 2 of the base member 10 is removed.
The handle 7 of the sloping 2 from the 4 enters into the casing 26,
The handle 7 pushes the locking portion 29a of the locking tool 29 upward against its own weight to rotate the locking tool 29.

When the handle 7 pushes the locking portion 29a up to the allowable position, the handle 7 separates from the locking portion 29a and the handle 7 passes through the locking portion 29a, so that the locking tool 29 again moves downward by its own weight. It rotates, passes through the inside of the handle 7, and reaches the locking position.

Next, when the corner drop-off device 1 is raised,
Since each handle 7 is lowered relative to the declining device 1 and the attaching / detaching device 1, it is possible to engage the engaging portion 29a of the engaging device 29 at the engaging position from above and lift the declining device 2. (See FIG. 3B).

After lifting the corner drop 2, the switching lever 34
Is operated to push the handle portion 34b downward to rotate the handle portion 34b, so that the upper locking pin 37b is moved to the casing 2
The inner surface of the top wall 26d of No. 6 is engaged from below. Then, the spring 36 interposed between the pressing plate 35 and the pressing body 30 is compressed, and the pressing body 30 is biased downward. In addition, the pressing plate 35 is provided with a lower locking pin 37a.
Upward movement is restricted.

Although the pressing body 30 urges the locking tool 29 in the locking position toward the allowable position, the weight of the corner drop 2 acts on the locking tool 29 via the handle 7. From
The locking tool 29 maintains the locking position (see FIG. 4A).

In this state, both ends of the corner drop 2 are engaged with the guide groove 6 such as a water channel, and the corner drop 2 is suspended along the guide groove 6. At this time, the rolling wheel 51 of the arm 45 of the slide device 40 rolls on the inner side surface 6a of the guide groove 6, and the rolling wheel 55 rolls on the bottom surface 6b of the guide groove 6, so that the corner drop attachment / detachment device 1 is mounted. The downward movement is stable and there is no rattling.

Then, when the corner drop 2 reaches the bottom of the water channel or the like or the upper surface of the corner drop previously arranged, the downward movement of the corner drop 2 is stopped. Further, when the corner drop attachment / detachment device 1 is slightly lowered, the handle 7 of the corner drop attachment 2 moves upward relative to the corner drop attachment / detachment device 1. With the movement of the handle 7, the weight of the corner drop 2 acting on the locking tool 29 is released, so that the locking tool 29 is rotated to the allowable position by the pressing force of the pressing body 30, and the opening part is opened. 24 is opened (see FIG. 4B).

At this time, even if the corner drop attaching / detaching device 1 together with the corner drop 2 is in the water, the pressing body 30 is provided with the switching lever 34.
The spring 36 forcibly and forcibly maintains the allowable position of the locking tool 29. Moreover, the locking tool 29 and the pressing body 3
0, the spring 36, and the like are housed in the casing 26, so that even if a water flow occurs, the casing 2
6 prevents this water flow, and the locking member 29, the pressing body 30 and the like operate accurately without being affected by the water flow. The casing 26 is formed with an opening or the like through which the switching lever 34 is inserted, but since the opening is small, it does not hinder the flow of water.

Then, when the angle drop attachment / detachment device 1 is pulled upward, the handle 7 is lowered relative to the angle drop attachment / detachment device 1, passes through the opening 24, and is separated from the angle drop attachment / detachment device 1 ( (See FIG. 5), the corner drop 2 is arranged at a predetermined position.
When the angle drop attachment / detachment device 1 is lifted, the rolling wheels 51 and the rolling wheels 55 of the arm 45 of the slide device 40 roll and guide along the guide groove 6 as described above, so that the angle drop attachment / detachment device 1 and the angle drop device 1 are dropped. The relative position with respect to 2 does not shift, a stable positional relationship can be maintained, and the handle 7 can be smoothly dropped and removed from the attaching / detaching device 1. In the same manner, a plurality of corner drop pieces 2 can be sequentially arranged between the guide grooves 6.

Next, the case of hoisting the corner drop 2 arranged in a waterway or the like will be described. The device main body 8 is expanded and contracted to adjust the position of the lifting device 22 and the handle 7,
In addition, the slide device 40 adjusts the distance from the suspension device 22 to the guide groove 6 and the width direction of the guide groove 6, and prevents the pressing body 30 from pressing the locking member 29.
Lifting the switching lever 34 is similar to the above case.

As a result, the corner drop attachment / detachment device 1 can be stably lowered into the guide groove 6, and the corner drop attachment / detachment device 1 can be aligned with the corner drop 2 securely.

When the corner drop attachment / detachment device 1 is lowered, the opening 24 can be aligned with the position of the handle 7, and further, when the corner drop attachment / detachment device 1 is lowered, the handle 7 can be locked by the locking tool 29.

Further, by raising the corner drop attaching / detaching device 1, the corner drop 2 engaged with the guide groove 6 is lifted,
The switching lever 34 is operated to switch the locking tool 29 from the free state to the state in which it is pressed by the pressing body 30. After that,
When the corner drop 2 is placed at a predetermined position and the corner drop attachment / detachment device 1 is slightly lowered, the pressing body 30 rotates the locking tool 29 to the allowable position by the spring, so that the angle drop attachment / detachment is performed again. By raising the device 1, the handle 7 is locked by the stopper 29.
Can be removed from.

In the above embodiment, the apparatus main body 8
By adjusting the expansion and contraction, the single corner drop attachment / detachment device 1 can reliably perform lifting or hanging work of the angle drop attachment 2 of any size, and the versatility of the angle drop attachment / detachment device is improved.

The present invention is not limited to the above embodiment, and for example, as shown in FIG.
Does not necessarily need to be able to extend and contract. That is, the base member 10 is composed of a single plate-like body, and the base portion 12a and the both side walls 1 bent and formed obliquely downward from both edges of the base portion 12a.
3 and 3. In addition, both ends of the base portion 12a are formed on both side walls 1
3, the both ends are inserted into the guide groove 6 to guide the base member 10.

11 to 15 show another embodiment of the suspension device 22, and each suspension device 22 will be described below. The lifting device 22 shown in FIG.
A spring 60 for urging the pressing portion 30a upward is provided between the other end of 0 (the side opposite to the pressing portion 30a with respect to the shaft 32) and the base member 10. Further, on the upper part of the pressing body 30, one end is fixed near the shaft 32, the other end is a free end, and the spring body 62 is curved upward.
Is provided.

A cam body 64 rotatable about a pivot shaft 63 supported by the casing 26 is in contact with the spring body 62, and the cam body 64 can be swung freely.
The pressing body 30 is pushed down against the spring 60 by being rotated by.

The suspension device 22 shown in FIG.
Spring body 6 curved upward near the shaft 32 in
2 is attached. Further, when the switching lever 34 is operated and the upper pin 37b is locked to the top wall 26c of the housing 10, the bending lever of the spring body 62 is held by the pressing body 35. Press down.

Further, the means for rotating the locking tool 29 not only presses the locking tool 29, but also engages the locking tool 29 and the pressing body 30. That is, the pressing body 30 is provided with a fan-shaped body 68 instead of the pressed portion 30a, and a gear portion 69 is formed on the peripheral surface of the fan-shaped body 68.

On the other hand, the pressing portion 30a of the pressing body 30 is formed with a rack portion 70 that meshes with the gear portion 69, and the pressing body 30 and the locking member 29 are always in mesh with each other. Further, the fan-shaped body 68 is swingable around the shaft 27 with respect to the locking portion 29a.
Even if is fixed by the pressing body 30, the locking portion 29a can swing between the locking position and the allowing position. Moreover, the coil spring 71 is fitted onto the shaft 27, one end of which is locked to the locking portion 29a and the other end of which is locked to the fan-shaped member 68, and the coil spring 7 allows the fan-shaped member 68 and the locking member to be locked. 29a is biased in the opening direction.

Therefore, when the handle 7 enters the housing 10, the switching lever 34 is positioned above as shown in the drawing, and the fan-shaped member 68 is rotated upward. Handle 7 is
Since the locking tool 29 is swung to the allowable position against the coil spring 71, the entry of the handle 7 is not hindered.

When the handle 7 passes the locking portion 29a, the coil spring 71 urges the locking portion 29a to the locking position, so that the locking portion 29a can be reliably and quickly moved to the locking position even in water. It can be moved and the corner drop 2 can be lifted.

Further, even if the switching lever 34 is pushed in and the upper pin 37b is locked to the housing 10, the pressing body 3
Since 0 meshes with the fan-shaped body 68, the upper position is maintained, but when the weight of the corner drop 2 is released, the pressing portion 30a moves downward due to the pressing force of the spring body 62, so the fan-shaped body 6
Rotate 8 downwards as shown in phantom. At this time, since the engaging portion 29a does not open any more with respect to the fan-shaped body 68, it swings together with the fan-shaped body 68 to an allowable position, and the handle 7 is lifted from the engaging tool 29 by dropping the attachment / detachment device 1. Can be separated.

The suspension device 22 shown in FIG. 13 is provided with a pair of left and right engaging members 29, and the pressing body 30 has a pressing portion 30 so that the pressed portion 29b of each engaging member 29 can be pressed.
It is formed in a gate shape in which a pair of a is provided. Further, a hanging portion 73 is provided below the switching lever 34, and the pressing body 30 is relatively movably locked to a support body 74 that hangs on both sides of the hanging portion 73. Each support 7
4 is a spring 75 for pushing down the pressing body 30.
Is fitted.

Therefore, by rotating and pushing the switching lever 34 to lock the upper pin 37b to the casing 26, both locking members 29 can be simultaneously rotated to the allowable position by the pressing body 30. Is.

In the embodiment shown in FIG. 14, the shaft portion 34a of the switching lever 34 is slidably inserted and supported in the central portion of the gate-shaped pressing body 30, and the pair of locking members is locked by the weight of the pressing body 30. The tool 29 is pushed to the allowable position.

The suspending device 22 shown in FIG. 15 has the same basic structure as that of the suspending device 22 shown in FIG. 14, and further, is arranged so as to be located between the pressing body 30 and both the locking members 29. ,
The handle storage guide 77 is fixed to the casing 26. The handle storage guide 77 is opened at the lower side so that the handle 7 can be inserted and removed from the lower side, and when the handle 7 enters the casing 26, the handle 7 is held by the handle storage guide 7.
It is designed to be stored in 7.

Therefore, since the handle 7 is positioned by the handle storage guide 77 when the handle 7 falls off and is detached from the attaching / detaching device 1, both of the locking members 29 in the allowable position.
It will surely come out from between.

FIG. 16 shows still another embodiment. The locking tool 29 and the pressing body (not shown) of the present embodiment are the same as those shown in FIGS. 13 to 15, but the intermediate partition plates 25 are provided on both sides of the pressing body in the casing 26. And the locking device 2 so that it can be hung over those partition plates 25.
The shaft 27 to which 9 is attached is rotatably attached, and the strength is improved as compared with the case where the shaft 27 is attached directly to the casing 26. The partition plate 25 also functions as a guide plate so that the handle is positioned in the center of the opening 24 when the handle with a corner drop is inserted through the opening 24 of the apparatus body.

A weight bar 271 may be attached to one end of each shaft 27 projecting from the partition plate 25 on the same side as the engaging portion 29a of the engaging member 29. In this case, when the pressing body rises, the weight bar 2
Since the shaft 27 is rotated to a substantially horizontal position by the own weight of 71, it is possible to forcibly open and close both the locking tools 29.

FIG. 17 shows still another embodiment. In the present embodiment, in addition to the structure described with reference to FIG. 16, the other end of each shaft 27 protruding from the other partition plate 25 has the same side as the locking portion 29a of the locking tool 29. An auxiliary rod 272 is attached to the. In this case, when suspending the corner drop handle from above, if a pressing body (not shown) is set upward and no load is applied to the locking tool 29, one shaft 27 will be When the weight rod 271 is rotated by its own weight, the other shaft 27 is rotated so that the auxiliary rod 272 can be pushed down by the weight rod 271. When the handle is completely inserted, the weight of the weight bar 271 causes the locking portion 29a to be in the horizontal locking position, so that the handle can be securely held. Therefore, only one of the locks 27 does not completely take the allowed position, and the handle is caught between the lock 29a of the one lock 27 and the lock 29a of the other lock 27. Therefore, it is possible to prevent an accident in which both the locking portions cannot hold the handles at the same time.

FIG. 18 shows still another embodiment. In the structure of the present embodiment, gears 273 are attached to opposite ends of the one shaft 27 and the other shaft 27, respectively, and the gears 273 are further meshed with each other by interposing two gears 273 '. Therefore, when one shaft 27 rotates, the other shaft 27 also rotates at the same time. In this case, the four gears 273 and 273 'need only have the same outer diameter and the same number of teeth, and the structure is simple. Further, it is preferable that the gear storage is partitioned by the partition wall 25 'so that foreign matter does not get caught in the gears 273, 273' and cause poor rotation. A belt system may be adopted instead of the above gear.

19 to 21 show still another embodiment. The locking tool 29 and the pressing body 30 of this embodiment are the same as those shown in FIGS. 13 to 15, but the pressing body 30 is the same.
A feature of the method of vertically moving is by using the connecting rod 80.

That is, the pressing body 30 is the base 1 of the apparatus body 8.
The pressing member 30 can be moved up and down by being connected to one end of a connecting rod 80 which is swingably supported by a supporting member 81 which is erected on the upper surface of 2a and which is swingably supported. Has become. An opening (not shown) through which the connecting rod 80 is inserted is formed on the inner side wall of the casing 26.

The other ends of both the connecting rods 80 are overlapped with each other and are interlockingly connected by a pin 83, and an eccentric cam 85 for pressing the connecting portion from above is provided on the apparatus main body 8 as a cam support 86. It is attached rotatably around a support shaft 87. A switching lever 88 for rotating the eccentric cam 85 is attached to the eccentric cam 85.

The distance X between the fulcrum of each connecting rod 80 and the pressing body 30 is set longer than the distance Y between the fulcrum and the connecting portion, where the pressing body 30 housed in the casing 26 is self-weighted. Each locking tool 29 can be pressed with.

In this embodiment, the switching lever 88 is shown in FIG.
By rotating it to the position shown in FIG. 9, it becomes possible to press the locking tool 29 toward the allowable position side. Further, since the eccentric cam 85 pushes the other ends of both the connecting rods 80 downward by rotating the switching lever 88 to the position shown by the imaginary line, the connecting rod 80 swings around the fulcrum. As a result, the pressing body 30 is pulled up.

The ratio between the distance X and the distance Y can be set arbitrarily, and the pressing force acting on the locking member 29 can be adjusted by changing the ratio between the distance X and the distance Y. Is possible. Reference numeral 95 is a bracket to which the wires 39 are connected. Also, as shown in FIG.
A compression spring 90 may be provided between the other end of each connecting rod 80 and the apparatus main body 8 to ensure the swinging motion of the connecting rod 80 in the direction of pressing the locking member 29.

Further, guide grooves 6 are provided on both ends of the apparatus main body 8.
Device 93 having rolling wheels 92 rolling on the bottom surface of the
Can be provided so that the movement can be adjusted.

The present invention is not limited to the above-mentioned respective embodiments, and the casing 26 includes the front and rear walls 2.
6a, 26b, both side walls 26c, and the top wall 26d only, may have a bottom wall. In such a case, an opening through which the handle 7 can pass is formed in the bottom wall. .

Further, the number of the suspension devices 22 is not limited to two, and may be more than one or may be a single unit.

[0076]

As described above, in the corner drop attachment / detachment device of the present invention, since the locking member and the releasing means are housed in the casing attached to the apparatus main body, the corner drop is buried in water. However, it is possible to prevent the locking tool and the releasing means from being affected by the flow of water, and it is possible to reliably exhibit their respective functions.

Therefore, it is possible to reliably remove the handle from the locking tool by stopping the locking tool at a predetermined position without fluttering the locking tool, thereby improving the reliability of the apparatus.

[0078]

Further, in the corner drop attaching / detaching device of the present invention, when the handle is released from the locking tool, the releasing means for moving the locking tool to the allowable position urges the locking tool toward the allowable position. Since it is made of an elastic body, the buoyancy of water does not reduce the pressing force of the weight unlike the conventional case where the weight of the weight member presses the locking tool, and the function of the elastic body is It is not easily affected, and the reliability of the device can be improved without causing the latch to flap like the above.

Further, when the engaging member and the elastic body are housed in the casing attached to the main body of the apparatus, the elastic member can urge the engaging member in the allowable position direction irrespective of the buoyancy, and the casing As a result, the influence of the flow of water can be prevented, so that there is an advantage that it is possible to more reliably prevent the catching tool from fluttering and improve the reliability of the device.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing a suspension device according to an embodiment of the present invention.

FIG. 2 is an overall perspective view showing the same-angle dropping device.

3A and 3B show the same-angle drop attachment / detachment device, in which FIG. 3A is a sectional view before the handle is locked, and FIG.

4A and 4B show the same-angle drop attachment / detachment device, in which FIG. 4A is a sectional view in a state where a switching lever is pushed in, and FIG.

FIG. 5 is a cross-sectional view showing a state in which a handle is separated from the suspension device.

FIG. 6 is a cross-sectional plan view showing a connected state of the base member and the connecting member.

FIG. 7 is a sectional front view showing the main part.

FIG. 8 shows the slide device, (a) is a plan view,
(B) is a perspective view showing the base of the arm.

FIG. 9 is a sectional side view showing the slide device.

FIG. 10 is an overall perspective view showing another embodiment of the present invention.

FIG. 11 is a cross-sectional view showing another suspension device.

FIG. 12 is a cross-sectional view showing another suspension device.

FIG. 13 is a cross-sectional view showing another suspension device.

FIG. 14 is a cross-sectional view showing another suspension device.

FIG. 15 is a cross-sectional view showing another suspension device.

FIG. 16 is a cross-sectional view showing another suspension device.

FIG. 17 is a cross-sectional view showing another suspension device.

FIG. 18 is a cross-sectional view showing another suspension device.

FIG. 19 is a perspective view of an essential part showing another embodiment of the present invention.

FIG. 20 is a sectional front view showing the main part.

FIG. 21 is an overall schematic view showing the same-angle-drop attachment / detachment device.

[Explanation of symbols]

1 Corner dropping device 2 corner drop 6 guide groove 7 Toride 8 device body 22 Lifting device 24 opening 25 Partition plate 26 Casing 27 shaft 28 Weight 29 Locking tool 29a Locking part 29b Pressed part 34 Switching lever (switching means) 36 spring 271 weight bar 272 Auxiliary rod

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) E02B 7/22 E02B ⁷ /34-7/36

Claims (2)

(57) [Claims] 1. A pair of guide grooves arranged to face each other is engaged with a corner drop having a handle on its upper surface so as to move up and down so as to lift or lower the corner drop by locking the handle. An angle drop attachment / detachment device comprising: a device body having both ends inserted into the guide groove; and a suspending device that locks the handle detachably. The suspending device is formed in the device body. And an engaging position that allows the handle to move upward through the opening and a locking position that closes the opening to lock the handle, and the engaging position. And a locking position, and a releasing means for moving the locking tool to an allowable position when the locking of the handle is released from the locking tool. And the releasing means are housed in a casing attached to the main body of the device.
And the locking device is pressed against the locking part where the handle is locked.
And is rotatably provided.
The releasing means presses the pressed portion from above by its own weight.
An angle drop attachment / detachment device having a pressing body, the pressing body being provided so as to be movable up and down. 2. A pair of guide grooves arranged to face each other are engaged with a corner drop having a handle on its upper surface to lift and lower the drop so that the corner drop is lifted or suspended. An angle drop attachment / detachment device comprising: a device body having both ends inserted into the guide groove; and a suspending device that locks the handle detachably. The suspending device is formed in the device body. And an engaging position that allows the handle to move upward through the opening and a locking position that closes the opening to lock the handle, and the engaging position. And a locking position, and a releasing means for moving the locking tool to an allowable position when the locking of the handle is released from the locking tool. , and have a resilient member for urging the locking member to the allowable position direction, the locking
The tool and the elastic body are inside the casing attached to the device body.
And the locking device is a member with which the handle is locked.
It consists of a stop and a pressed part, and is rotatably provided.
Moreover, the releasing means causes the pressed portion to move the elastic body elastically.
Has a pressing body for pressing from above by sexual force,
The corner drop attachment / detachment device in which the pressing body is provided so as to be able to move up and down.