JPS5849204Y2 - Angle adjustable lining board - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an angle-adjustable lining plate used for a bent portion of an excavation trench.

When excavating roads in urban areas for piping work such as gas pipes, there is a condition that the roads be restored to usable condition after the work is completed each day, but urban areas have heavy traffic and Since there are many obstacles from other companies, Maida Excavation - Piping -
One set of reversal I8. There are many problems with repeating.

One way to solve this problem is to cover the excavated trench with strong footboards called lining boards that can withstand the passage of vehicles.

Commercially available lining boards are generally rectangular in plan, so there is no problem when the excavated trench is straight.

However, when the groove direction is bent, a triangular gap is generated at the bent portion that cannot be covered by the rectangular lining plate.

This gap is lined with an iron plate placed over it, but the iron plate lining is weak and has disadvantages in preventing movement of the iron plate.

The only solution to the above problem is to backfill the triangular gap at the end of the day's work, re-excavate the backfilled part the next day, and move on to the next job.

This is extremely wasteful and duplicative work, so improvements are strongly desired.

In response to the above-mentioned needs, the present invention aims to provide a lining plate that can be deformed according to the shape of the triangular gap at the bent part of an excavation trench. A lining plate main body with one side facing the excavation groove width of the vertical side of the plate open and the other closed, and a vertical pin installed vertically near one end of the open side. The inner lining plate is locked at one end so as to be pivotable in the direction, and the inner lining plate pivots about the vertical pin with respect to the lining plate main body and rotates from the open side surface to the desired direction. This invention provides an angle-adjustable lining board characterized by having a structure that allows entry and exit at an angle of .

The details of the invention will be explained below by way of example and with reference to the drawings.

FIG. 1 is a plan view of a lining board main body 1, which is the main part of the angle-adjustable lining board of the present invention, and FIG. 2 is a sectional view taken along line II-II of FIG. 1.

The lining board main body 1 has a rectangular planar shape and is thick.

2 and 2' are the upper and lower plates. Reference numeral 3 denotes side plates provided on three of the four vertical side faces, and one side face 3' placed in the groove width direction is not provided with a side plate and is open.

A vertical pin 5 is provided near one end of this open side 3' and is supported by the upper and lower plates 2, 2'.

The upper and lower plates 2, 2' are reinforced with reinforcing members 4, and a foot roller portion 7 is constituted by these members.

FIG. 3 is a plan view of the inner lining plate 8 that engages with the lining plate main body 1, and FIG. 4 is a sectional view taken along line VI-VI in FIG.

The inner lining board 8 has a narrow fan shape in plan view and a thickness of 9.
It is composed of upper and lower plates 9', side plates 10 on three sides, and reinforcing members 11.

There is a bottle hole 12 in the fan-shaped diagonal part, which engages with the vertical pin 5 to horizontally rotate the inner lining plate 8, so that a part or almost the entire part thereof can be easily inserted into the foot roller part 7. There are many bottle holes 13 on the upper plate 9 on an arc with the bottle hole 12 at the center.

There is a bottle hole 6 in the upper plate 2 of the lining board main body 1, and a pin (not shown) inserted into something in the bottle hole 6 is inserted into the bottle hole 1.
3, the lining plate main body 1 and the inner lining plate 8
The relative position is fixed.

To explain how to use the lining board of the present invention, which joins the lining board main body 1 and the inner lining board 8, the plan view of FIG. 5 and the plan view of FIG.
In the cross-sectional view shown in the figure, the angle θ of the triangular part of the inner lining plate 8 protruding from the lining plate main body 1 is made to match the bending angle θ in the direction of the excavated groove, 1
Insert a pin (not shown) into the bottle hole that matches one of the three holes and place it so that the triangular part matches the bent part of the excavated trench. It can be connected without any problem.

As described above, the angle-adjustable lining plate of the present invention is designed so that the angle of the exposed triangle of the inner lining plate is θ in accordance with the bending angle θ of the excavation groove, and the angle of the exposed triangle of the inner lining plate is θ. By simply inserting the pins into the pin holes 6 and 13,
It can cover the gap in the triangle in question, and the used top can be used for other purposes, making it very effective and convenient.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the lining plate main body of the flat plate of the present invention, Fig. 2 is a sectional view taken along line II-II of Fig. 1, and Fig. 3 is a plan view of the inner lining plate. The figures are Figure 3 ■I-VI sectional view,
Figure 5 is a plan view of the assembled lining board of the present invention;
The figure shows a sectional view taken along line VI-VI in FIG. 1... Lining board main body, 2... Top plate, 2'
...Lower plate, 3...Side plate, 3'...
...Side surface without side plate, 4...Reinforcement material, 5...
...Vertical pin, 6...Bin hole, 7...
・Futokoro, 8... Inner lining board, 9...
Upper plate, 9'... lower plate, 10... side plate,
11... Reinforcement plate, 12... Bottle hole, 1
3... Bottle hole, 14... Commercially available lining board.

Claims (1)

[Scope of utility model registration request] A lining board main body having one side of the vertical side of the lining board in the excavation groove width direction open and the other closed, and a vertical pin provided vertically near one end of the open side. an inner lining plate whose one end is locked so as to be pivotable in the horizontal direction, and the inner lining plate pivots about the vertical pin with respect to the lining plate main body to form the open side surface. An angle-adjustable lining board characterized by having a structure that allows entry and exit at a more desired angle.