JPH0442393Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention is a system for transporting a liner plate, which is attached to cover the wall of an excavation hole during vertical shaft excavation, deep foundation construction work, etc., by suspending it into the excavation hole. The present invention relates to a liner plate hanger suitable for use in the production of liner plates.

[Conventional technology]

As is well known, when forming a shaft by excavating, a liner plate is pasted along the wall of the hole each time the hole is dug to a certain depth to prevent the wall from collapsing after being dug. It is.

Figure 5 shows an overview of the construction site for shaft 1 using this excavation method. 4 to prevent objects from falling into the hole and to facilitate work at the opening of the hole. 5 is installed with an opening in the center of the board 4, and its lower end is connected to the excavated hole 3b.
A cylinder body for loading and unloading with a rubber casing, etc., extending toward the bottom of the hole, is used for drilling holes 3a, 3
In addition to transporting excavated soil, rock, etc. from the hole, and loading and unloading various excavation work equipment, it also plays a role such as protecting workers at the bottom of the hole from falling objects. In addition, in the figure, 6 is a buckler for carrying out earth and sand, 6a is a lifting rope, and 7 is a hook of a crane or the like (not shown).

Reference numeral 8 denotes a liner plate that is pasted to cover the walls of the above-mentioned excavated holes 3a, 3b to prevent the walls from collapsing, etc., and is formed in an arc shape so as to circumferentially surround the walls of the excavated holes 3a, 3b. By forming a set of a plurality of liner plates 8 and connecting and attaching them along the circumferential direction so as to surround the hole wall, a plate wall surface for each stage is formed, and such a plate The walls of the excavated holes 3a, 3b are covered to the bottom of the holes by extending the walls vertically while connecting them with bolts, nuts, etc.

[The problem that the idea aims to solve]

By the way, the excavated holes 3a and 3b as described above
When gradually digging a hole while attaching a liner plate 8 to the wall surface of the hole, there is a problem in how to carry the liner plate 8 into the excavated hole. In other words, each time a hole is dug to a certain depth, it is necessary to transport the required number of liner plates 8 by suspending them to the bottom of the hole. 3
Since the loading and unloading is carried out through the loading/unloading cylinder 5 which is suspended in the central portions of a and 3b, problems arise in terms of workability and it cannot be said that efficient loading work can be carried out. Ta. The easiest way to carry this kind of work is to carry the liner plate 8.
It is conceivable to suspend and unload one sheet at a time, but this poses a problem in terms of work efficiency. It is also possible to bundle and lower a plurality of liner plates 8, but in this case, if the plates 8 are stacked horizontally, it is impossible to lower them due to the diameter of the cylindrical body 5. It is necessary to lower it while hanging it. In such a case, it is necessary to firmly tighten and tie the plurality of liner plates 8 from the viewpoint of safety, so before transporting the liner plates,
Later, the laminated plates 8 are tied together,
This required troublesome work such as removing it, which caused problems in terms of workability.

In particular, this type of liner plate 8 is larger and heavier than the operator, so it is necessary to be able to handle it easily and safely. It is desired that some kind of countermeasure be taken to make the work of importing equipment efficient and easy.

[Means to solve the problem]

In order to meet these demands, the liner plate hanger according to the present invention is designed to suspend and transport a stacked body of multiple liner plates into an excavated hole. A main body frame having an L-shape in side view, consisting of a vertical frame part having a support part for supporting the laminate, and a horizontal frame part having a support part for supporting one end edge of each liner plate constituting the laminate, and the vertical frame part thereof. The left side is pivotally supported on the tip side and has a hanging means on the tip side;
It is composed of a right swing arm and a connecting member whose one end is pivoted to the tip side of the swing arm and whose other end is hooked and locked to the tip side of the horizontal frame portion of the main body frame. .

[Effect]

According to the present invention, the vertical frame section of the L-shaped main body frame, which is in a vertical state at the time of delivery, is installed in a horizontal state, and a plurality of plates are sequentially supported with one side of the liner plate supported on the supporting section. At the same time, the swinging arm at the tip of the vertical frame is raised, and the connecting member is hooked and locked to the tip of the horizontal frame, which is the other end of the main body frame, and then attached to the hanging means. By hanging a rope and tightening the stacked body at one end to assemble it integrally, multiple liner plates are mounted in a stacked state, and the entire thing is suspended using a suspended means such as a crane. Carrying into the bottom of the hole can be carried out easily and appropriately, and each liner plate can also be easily loaded and unloaded at the bottom of the hole.

〔Example〕

Hereinafter, the present invention will be explained in detail using embodiments shown in the drawings.

Figures 1 to 3 show an embodiment of the liner plate hanger according to the present invention, and in these figures, the same or corresponding parts as in Figure 5 described above are designated by the same numbers. The explanation will be omitted.

Now, according to the present invention, a plurality of well-known liner plates 8, which are formed as circular arc members having upper and lower flanges and cover the wall surface of an excavation hole along the circumferential direction, are suspended in a stacked state inside the excavation hole. The apparatus is characterized in that a liner plate hanger, generally designated by the reference numeral 10, constructed as shown in FIGS. 1 to 3 is used for lowering and transporting the liner plate.

That is, the liner plate hanger 10 according to the present invention has a substantially L-shape and is arranged facing the liner plate 8 with substantially the same width dimension in order to mount a plurality of liner plates 8 in a stacked manner. L-shaped in side view, consisting of left and right frames 11, 12, liner plate supporting stays 13, 13 and connecting bars 14, 14, which are spanned between them and serve as a connecting means to connect left and right frames 11, 12. The main body frame 15 exhibits the following characteristics. Here, in this embodiment, left and right frames 1
1 and 12 are vertical frames 11a and 12, respectively.
a and a horizontal frame 1 rotatably supported thereon.
1b and 12b, and are integrally constructed in a foldable state by means of reinforcing frames 11c and 12c, which are detachable at least at one end. Then, the vertical frames 11a and 12a mentioned above, and the supporting stay 13 that supports the arcuate curved outer surface of the stacked body made up of the plurality of liner plates 8,
13 and the like constitute a vertical frame portion that is in a vertical state when the liner plate 8 is suspended. On the other hand, the horizontal frames 11b, 12b, support parts 16, 16 (in this embodiment, each frame 11
(b, 12b) constitutes a horizontal frame portion that is in a horizontal state when the liner plate 8 is suspended.

20, 20 are the left and right vertical frames 11a,
Liner plate 8 pivotally supported at the tip of 12a
The left and right swinging arms are rotated in a direction substantially perpendicular to the frames 11a and 12a when the frame is mounted, and a hanging means is attached to the tip of the arm via a rope 21 to the crane hook 7. Hooks 22, 22 are provided. Further, both ends 23b, 23c of a connecting lever 23 are rotatably connected to the tips of the left and right swing arms 20, 20 as a connecting member having a substantially U-shape. The connecting portion 23a of 23 is connected to the left side that constitutes the horizontal frame portion.
It is formed as a part of the left and right hooking arms 24, 24, which have L-shaped tips 24a, 24a which are rotatably provided at the tips of the right horizontal frames 11b, 12b and serve as holding parts for the liner plate 8. It is adapted to be hooked and locked to the hooking notches 24b, 24b. Here, reference numerals 25, 25 in the figure are connection bars that connect the left and right hooking arms 24, 24.

Note that it is preferable to give the corners of each of the above-mentioned members a radius so as not to damage the cylindrical body 5 during carrying in and out.

According to the liner plate hanger 10 having such a configuration, the liner plates 8 are stacked and mounted as shown in FIGS. 4a and 4b, and
By hanging it as shown in FIG. 1, it becomes possible to carry it into the excavation hole. That is, L
The vertical frame parts 11a and 12a, which are in a vertical state at the time of delivery, in the character-shaped main body frame 15 are
As shown in FIG.
Stack them one after another and load them. At this time, the swinging arms 20, 20, the connecting lever 23, the hooking arms 24, 24, etc. are kept in a rotating state. Next, the swinging arms 20, 20 at the tips of the vertical frame parts 11a, 12a are raised as shown in FIG. A certain horizontal frame part 11b, 12b is hooked and locked on the tip side, and then the rope 21 is hung on the hanging hooks 22, 22 on the tip side of the swinging arms 20, 20, and the stacked body is attached to the frame at one end side. 15
By assembling the liner plate hanger 10 integrally by tightening and holding it on the side,
It becomes possible to mount and hold a plurality of liner plates 8 in a stacked state. Then, in this state, the rope 21 is hoisted by a crane or the like in the direction shown by the arrow in Figure 4b, and the entire body is placed vertically as shown in Figure 1, thereby transporting it into and out of the bottom of the excavated hole. The material can be easily and appropriately transported through the cylinder. At this time, when the rope 21 is lifted, the connecting lever 23 pulls the hooking arms 24, 24 together with the swinging arms 20, 20 so as to press down the liner plate 8.
The liner plate 8 is held fixed even more reliably.

In order to load and unload each liner plate 8 at the bottom of the hole, the rope 21 is loosened, the connecting lever 23 is released from the hooked state, and the connecting lever 23 is removed and rotated, and the swinging arms 20, 20 are also rotated. That's easy to do.

According to the liner plate hanger 10 having such a configuration, despite its simple configuration, it is extremely easy to stack and mount a plurality of liner plates 8 with the main body frame 15 placed horizontally. In addition to being able to perform work,
Swing arms 20, 20 and their hanging hooks 2
2, 22, and a connecting lever 23 that is hooked and locked to the other end of the main body frame 15, it is possible to securely hold and hang it vertically. Not only can the work of transporting a plurality of liner plates 8 into the excavated holes 3a and 3b be performed efficiently and safely with a simple operation, but also the liner plates 8 can be easily loaded and unloaded at the bottom of the hole. There are advantages. Furthermore, with the hanger having such a configuration, when a rubber casing is used as the loading/unloading cylinder 5 suspended in an excavation hole, the problem of damage to the rubber casing can be avoided. It also has the advantage of being able to be wiped clean.

Further, in this embodiment, the liner plate hanger 10 is configured to be foldable with a framework structure, and has advantages such as easy handling.

Note that the present invention is not limited to the structure of the embodiment described above, and the shape and structure of each part of the hanger 10 may be modified and changed as appropriate. For example, it may be formed by forming a frame from a pair of left and right L-shaped frames. Instead of the collapsible L-shaped body frame when viewed from the side, various modifications may be considered, such as assembling plate materials into an L-shape.

[Effect of idea]

As explained above, according to the liner plate hanger according to the present invention, in a stacked body made up of a plurality of liner plates, the vertical frame part has a support part that supports the outer surface of the liner plate on the outer layer side that constitutes the stacked body. A main body frame having an L-shape in side view and consisting of a horizontal frame portion having a support portion that supports one end edge of each liner plate constituting the laminate; Left and right swinging arms having means at their tips, and a connecting member having one end pivotally supported on the tips of these swinging arms and the other end being hooked and locked onto the tip side of the horizontal frame portion of the main body frame. Despite its simple configuration, it is easy to stack and mount multiple liner plates with the main body frame placed horizontally, as well as to easily install the swing arm and its suspension. It is possible to securely hold and hang vertically by using a rope wrapped around a means and a connecting member.
Not only can this simple operation be carried out efficiently and safely, but it also has various excellent practical effects, such as being able to easily load and unload the liner plate at the bottom of the hole. Furthermore, the hanger with such a configuration eliminates problems such as damage to the rubber casing when it is used as a cylinder for loading and unloading suspended inside an excavation hole. There are also advantages such as being able to

[Brief explanation of the drawing]

Fig. 1 is a schematic perspective view showing one embodiment of the liner plate hanger according to the present invention in a state of use;
Figures 3 and 3 are side views and bottom views of essential parts of the liner plate hanger, and Figures 4a and 4b are schematic explanatory views for explaining how liner plates are loaded into the liner plate hanger according to the present invention. , FIG. 5 is a schematic configuration diagram for explaining a shaft formed by the excavation method. 1... Vertical shaft, 3a, 3b... Excavation hole, 7... Crane hook, 8... Liner plate, 10...
...Hanger for liner plate, 11, 12...
Left and right frames, 13...Support stay, 15...
...Body frame, 16... Support part, 20... Swinging arm, 21... Rope, 22... Hanging hook, 23... Connection lever, 24... Hanging arm.

Claims (1)

[Scope of utility model registration request] A liner plate hanger for suspending and transporting a stacked body of a plurality of liner plates into an excavated hole, the hanger comprising a vertical frame portion having a support portion for supporting one side of the liner plates constituting the stacked body; A main body frame having an L-shape in side view and consisting of a horizontal frame portion having a support portion that supports one end edge of each liner plate constituting the laminate; and left and right swinging arms having hanging means on their tips, one end of which is pivotally supported on the tips of these arms, and the other end of which is hooked and latched to the tip of the horizontal frame portion of the main body frame. A hanger for a liner plate, comprising a connecting member that is connected to the liner plate.