JPS598631B2 - Asphalt mat lifting and lowering equipment - Google Patents

Description

Detailed Description of the Invention The asphalt mat used in the present invention is a mat whose main material is asphalt with glass fiber cloth, hemp rope, etc. inserted as a core material, and its shape varies depending on the use. As an example, the width is 5 m, the thickness is 5 cIIl, the length is 187 rL, and the weight is approximately 10,000 Kt (specific gravity: 2.
2), and its main uses include reclaimed revetments, prevention of earth and sand suction, prevention of earth and sand scouring, prevention of sliding of caissons, etc., underlay to prevent subsidence when laying tetrapods for seawalls, slope covering of embankments, etc. It is used for.

Conventionally, when laying these asphalt mats on the coast, etc., the asphalt mat hanging device on one side of the mat is lifted from only one end and then returned to a so-called single-hanging method (for example, hanging only from the front or rear wire in Figure 1). Or, it can be lifted at an almost horizontal angle (see Figure 1) and opened laterally at the same time using a lever mechanism (Special Publication Publication No. 52-1).
(Refer to Publication No. 8454), but when removing the asphalt suspension wire in water, etc., it is necessary to operate the mechanism of one main beam and then the mechanism of the other main beam, or the mechanism must be operated on both sides. Since the structure requires the deployment of personnel, it takes time and effort to install the structure because it is moved underwater, and a more complicated mechanism is required to lower both sides at once. wax,
There is no proposal for this in the above-mentioned publication, and it cannot be inferred from the drawings, and if it were to be installed, it would of course be heavy and even more difficult to operate. There are many disadvantages such as the high price.

Furthermore, since it is not possible to remove both suspensions at the same time, not only in the case of single suspension, but also in the case of both suspensions (in the case of the one in the above-mentioned publication), there is a risk of damage to the asphalt mat, which is extremely inconvenient.

The present invention improves this by simplifying the mechanism, making its operation smooth and easy, and ensuring its operation.
It is faster and cheaper.

Next, the apparatus of the present invention will be explained based on the embodiment shown in the drawings. FIG. 1 is an explanatory diagram showing an example of a conventional asphalt mat hanging means, and FIG. This is an example.

1 is the asphalt mat mentioned above, 2 is a conventional mat hanging wire, and in the embodiment of the present invention, the wire with the symbol Y corresponds to this, and both are fixed to the asphalt mat by appropriate means. has been done.

Reference numeral 3 denotes a frame for hanging asphalt, and in the present invention, it is constructed into a rectangular shape in the shape of an asphalt mat 1 by a main beam 4 and side beams 5, and an intermediate beam 6 is fixed to the center thereof by appropriate means. There is.

Further, reference numeral 7 denotes an intermediate side beam which is installed in parallel with the side beams 5, 5 between the main beams 4, 4 on both sides for reinforcement.

The present invention provides bearing stands 8 and
8... Attach the upper and lower winding shafts 9 to the main beams attached through the asphalt mats, and install the asphalt mat winding upper and lower wires 13 at positions on this shaft that match the installation intervals of the hanging wires Y fixed to the asphalt mat. The upper and lower winding rings 10, 10, etc. are rotatably fitted and attached so as to be able to be hoisted and unwound on a lead-like structure, and the upper and lower winding rings 10, 10, As the support part 11 of the asphalt mat hanging wire Y, the fourth part of the embodiment is placed at a position corresponding to 10...
, a circular or rectangular housing 11 as shown in FIG. Upper and lower winding rings 10, 10 on the beam part...
The fitting member 15 of the asphalt mat hanging wire is connected to the hole 11 of the casing 11 (7) of the asphalt mat hanging support part 11 via the fitting member stopper 14 on the tip of the winding and unwinding wire 13 wound around the asphalt mat hanging wire. ', thereby supporting the asphalt mat hanging wire Y.

Stopper operation handles H, H for operating the upper and lower winding shafts 9 are attached to appropriate positions (in the drawings, at both ends) above the main beams 4, 4 on both sides.

The stopper operating handle H is pivotally mounted on a type bearing stand 8' fixed to the end of the side beam 5, and a spring S is fixed to one end of the upper and lower winding shafts 9 in the bearing stand. The stopper hole 24' of the stopper ring 24 rotatably attached to the outside of the bearing stand 8 fixed to the side beam 5 is attached to the outside thereof so that it can engage with and be detached from the stopper hole 24'. By inserting the operating handle H into the stopper hole 24', the stability of the asphalt mat support portion is maintained.

(See Figures 6A and B).

The ends of the upper and lower winding shafts 9 pass through the end bearing pedestal 8' and are fixed to the stopper ring 24.
A spring S whose one end is fixed inside the upper and lower winding shafts 9
The other end of the spring S is in free contact with the end bearing stand 8', and this tension always acts on the right side. Therefore, the upper and lower winding shafts 9 are always connected to the stopper ring 2.
By being pulled to the 4th side, the upper and lower winding shafts can be operated accurately.

In addition, the operation of the upper and lower winding shafts 9 involves rotating the upper and lower winding shaft operating handles H' fixed to the stopper wheels 24, and this rotation causes the asphalt mat suspension wires to move to positions corresponding to the asphalt mat hanging wires Y on the main beams 4, 4. It rotates the attached upper and lower winding rings [0].

When the asphalt mat hanging wire Y is attached to the main suspension frame 3 and moved 5, the upper and lower winding shafts 9 are lowered to the position shown in FIG. When the stopper operating handle H 8' is fitted into the stopper hole 24' of the stopper shaft 24, the vertical shaft 9 is secured in that position, and the asphalt mat hanging wire Y is secured to the main hanging tool frame 3 and moved. When this has been carried out stably and the main hanging tool frame has reached its destination and the asphalt mat has been placed in its destination position, remove the stopper operation handle H from the stopper hole 24' of the stopper wheel 24 and remove the stopper operation handle H from the stopper hole 24' of the stopper wheel 24. When the handle H' for operating the upper and lower winding shafts fixed to the upper and lower winding shafts is rotated in the opposite direction, the upper and lower shafts 9 fixed thereto rotate, thereby rotating the upper and lower wheels 10 clockwise. The asphalt mat 1 can be placed at the destination by winding up the wire, pulling up the fitting member 15 from the asphalt hanging support part 11 to the position shown in FIG. be.

Furthermore, in the invention of the present application, an intermediate beam bearing stand is provided in the intermediate beam 6 of the asphalt mat suspension frame 3 on both side main beams 4, 4 in parallel with the main beam vertical axes 9, 9 provided on both side main beams 4, 4. 16,
16..., to which the intermediate beam upper winding shaft 17 is rotatably attached, and to this the upper and lower winding wheels 10 on the main beam upper and lower winding shafts 9, 9 provided on the main beams 4, 4 on both sides. ,10,
Winding rings 18, 18 on the intermediate beam (see Figure 3)
are attached rotatably, and connecting wires 19,
19... is wound as shown in Figure 3C.

In this case, the clutch wheel 2L22 is connected to the ring hole 23 from the side beams 5, 5 and the intermediate beams 6, 6... to the clutch wheel mounting shaft 2.
The connecting wire 19 is slidably attached to the protrusion 20' provided on the clutch wheels 21 and 22.
(See Figure 7).

That is, in the present invention, the asphalt mat to be laid can be lifted up or suspended from one side in the longitudinal direction, and this is done by connecting the clutch wheels 21 and 22 as shown above as shown in A in Fig. 7. If actuated, both sides can be lifted or suspended at the same time, and if actuated with clutch wheel 2L22 disengaged as shown in B, only one side can be actuated separately.

Note that FIG. 7C is a plan view of the clutch wheel 2L22.

In addition, 25 in the drawing is a wire 19 that connects the asphalt mat suspension wire of the main beams 4 and 4 and the winding ring on the intermediate beam.
This is a wire receiving guide tube made of plastic material that prevents and protects the wire from walnuts.

Further, 26 (Fig. 2) is a wire for suspending the frame by a crane or the like.

Further, as shown in FIGS. 2 and 3, an intermediate beam end bearing stand 8'' is provided at the end of the intermediate beam upper winding shaft 17 provided on the intermediate beam, and this also has a stopper hole 24'. Stopper ring 24
Additionally, a puller operating handle H and an upper and lower winding shaft operating handle H' are provided.

Next, to explain the operation of this device, first, the asphalt lifting/hanging frame 3 of the present invention is attached to an asphalt mat hanging frame 3 attached to both sides of an asphalt mat 1 manufactured at a construction site etc. by a crane or the like. As shown in FIGS. 4A and 4B, along with the wire Y, the asphalt mat suspension wire supports 11 are suspended near the asphalt mat suspension wire supports 11 provided on both main beams 4, 4 of the asphalt mat suspension frame 3, i.e. Insert the asphalt mat suspension wire into the asphalt mat suspension wire insertion opening 12 of the casing 11, and lower the winding wire 13 by operating the handle H' for operating the upper and lower winding shafts of the main beam upper and lower wheels 10. The fixing fitting member 15 of the asphalt mat hanging wire Y, which is attached to the lower part of the asphalt mat hanging wire Y via a stopper 14, is lowered and fitted into the attachment ring of the asphalt mat hanging wire Y.

As described above, when each asphalt mat hanging wire Y is fitted into the asphalt mat support part,
Operate the stopper operating handle H on the end bearing stand 8' to fit and fix the stopper into the stopper hole 24' of the stopper ring 24, and then lift the asphalt mat hanging frame 3 to the frame hanging rope 26 using a crane or the like. When lifted by
As shown in B, the hanging wire Y tensioned by the weight of the asphalt mat is firmly connected to the fixing fitting member 15 of the asphalt mat attached below the winding up/down wire 13 in the casing 11 of the asphalt mat support part. The entire asphalt mat can be hung almost horizontally.

Next, the wooden frame is moved by a crane or the like to the location where the asphalt mat is to be laid, and at the target location, the upper and lower winding wheels 10 are operated using the operating handle H' for operating the upper and lower winding shafts provided at appropriate positions at the ends of the main frame, and the asphalt mat is laid. When the mat winding upper and lower wires 13 are hoisted clockwise, Fig. 5A
, B, each asphalt mat fastening fitting member 15 attached below the winding up and down wire 13 in the asphalt mat hanging wire support 11 comes out of the support housing 11, and due to the asphalt mat's own weight,
It can be detached from the support 11 and laid at the desired location.

That is, in the case of slope protection of embankments, etc., the intermediate beam upper winding ring 18 installed on the intermediate beam 6 and the upper and lower winding rings 1 on both main beams 4, 4 are used.
After operating the clutch mechanism shown in FIG.
If you turn N as it is and operate the handle H for operating the upper and lower winding shafts on the other side to rotate the soil winding ring clockwise as shown in Fig. 5, the asphalt mat winding upper and lower wires 13 wound around it can be removed. The fitting member 15 is pulled up and attached to its lower end.
is pulled up from the casing 11 of the asphalt mat support part 11, and the asphalt mat hanging wire Y will separate from the asphalt mat hanging frame 3 due to the mat's own weight, so it must be positioned above the slope using a crane or the like. Gently lay it down from the lower position, and when the upper position is fixed, remove the asphalt mat hanging wire Y from the main frame 3 with the same specifications as above, and the asphalt mat will be placed exactly at the desired position.
Asphalt mats can be easily laid.

That is, in the above usage example, an asphalt mat is laid by operating this device on only one side separately, but it is also extremely easy to use it by operating both sides simultaneously as shown below. .

Next, to describe the implementation of the present invention having the above-mentioned configuration, in order to attach the asphalt mat 1 to be laid on the asphalt mat hanging frame 3, attach it by the same operation as in the above case, and then Just hang the wire 26 by crane, etc. at the target location where you are going to lay it.
This time, the clutch mechanism shown in FIG. 7 is actuated to move the connecting chain 19 wound around the intermediate beam upper winding ring 18 on the intermediate beam 6 and the upper and lower winding rings 10 on both main beams 4, 4. That is, after the clutch ring 2L22 is engaged and fixed, the upper and lower winding shaft operating handles H provided on the end bearing stand 8'' are operated to operate the upper and lower winding wheels 10, 10 of the main beams 4, 4 on both sides.・
... is rotated in the clockwise direction as shown in FIG. 11, and the asphalt mat hanging wire Y separates from the asphalt mat hanging frame 3 at the same time due to the weight of the mat.
It can be laid almost horizontally and accurately and quickly at a target location without requiring any human labor.

As described above, according to the present invention, the asphalt mat is suspended almost horizontally by the hanging frame using an extremely simple mechanism, and this is moved to the destination, and the asphalt mat attached to the frame is By simply operating the handle H for operating the upper and lower winding shafts provided on one side of the frame 3, the asphalt mat can be removed from the mounting frame 3 at once and laid almost horizontally, unlike conventional laying machines of this type. The asphalt mat can be detached from the suspension wire by a single operation, which was previously impossible. Therefore, even on the coast or under the influence of waves in rivers, it can be laid all at once by a single diver, and the present invention reduces the installation time. It is an excellent invention that can be expected to shorten the asphalt mat easily and reliably, and also to prevent the asphalt mat from twisting and breaking by simultaneously releasing it, and to reduce the price by simplifying the mechanism. be.

In addition, as mentioned above, depending on the purpose, only the asphalt mat hanging wire Y on one side can be removed first, making it possible to perform the desired work with a single-hanging type, so one machine can perform two types of work. This invention also has the advantage of being selectable.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram of the traditional asphalt mat hanging on one side.
FIG. 2 is an explanatory diagram showing an embodiment of the present invention, and FIG. 3 is an explanatory diagram showing the relationship between the present invention and the hanging frame, where A is a plan view and B is a plan view.
is a side view, C is a right side view, Figure 4 is an enlarged view of the main part, and is an explanatory diagram when the asphalt mat is installed. Figure 5 is an explanatory diagram when the asphalt mat is removed.
The figures are explanatory diagrams of a part of the stopper of the operating handle, A is a side view, B is a front view, and Fig. γ is an explanatory diagram of the clutch portion of the present invention, that is, when one side is operated and when both sides are operated simultaneously. 1... Asphalt mat, 2... Old asphalt hanging wire, 3... Asphalt hanging frame, 4... Main beam, 5... ...Side beam, 6...Middle beam, 7...Middle side beam,
8... Bearing stand, 8'... End bearing stand,
8"...Intermediate beam end bearing stand, 9...Upper and lower winding shaft, 10...Underground winding ring, 11...
Asphalt mat hanging support part, 11... Housing,
11'... Housing hole, 12... Asphalt mat hanging wire insertion hole, 13... Asphalt mat winding upper and lower wire, 14... Fitting member Mounting tool, 15...Mating member, 16...
...Middle beam bearing stand, 17...Middle beam upper winding shaft, 1
8... Intermediate beam upper winding ring, 19... Connecting wire, 20... Clutch wheel mounting shaft, 21,
22...Clutch ring, 23...Ring hole,
24...Stopper ring, 24'...--Stopper hole, 25...Wire receiving guide tube, 2
6... Frame suspension wire, Y... Asphalt suspension wire, H... Stopper operation handle, H'... Handle for operating the upper and lower winding shafts.

Claims (1)

[Claims] 1. The asphalt mat hanging wires are vertically hoisted at positions matching the spacing of the asphalt mat hanging wires attached to the asphalt mat above the beams provided at appropriate positions on both sides of the asphalt mat hanging frame, and a return device is installed, and the A support part for the asphalt mat suspension wire is provided below the beam, the upper part of this support part is connected to the above hoisting and returning device, and the lower part is connected to the asphalt mat suspension wire insertion hole provided in this support part. The asphalt mat hanging wire is held between the wires, and the hoisting and returning devices are connected to each other, and are operated simultaneously by operating a handle for operating the upper and lower winding shafts provided on the end side of the beam, and A wire connecting each of the hoisting and returning devices on both sides is wound around a beam provided in the middle of the beams on both sides of the frame, and a mechanism is provided at an appropriate position to disconnect and connect the wire with the hoisting and returning devices on both sides. When the stopper operation handle H of the wire hoisting/returning device is attached to the appropriate place on this intermediate beam, and the hoisting/returning devices on both sides are connected, by operating this, the entire hoisting/returning operation can be performed. When the device is moved vertically to suspend asphalt mats at the same time, and when the connection with the hoisting and unwinding devices on both sides is disconnected, the hoisting and unwinding devices on both sides can be unwinded separately. An asphalt mat lifting and lowering device characterized by: