JPH0638955Y2 - Reinforcement ring temporary stop - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial field of application) The present invention is used for the work of mounting and fixing a liner plate used for lining a vertical shaft, etc., and is a reinforcing ring made of H-shaped steel. To a temporary fixing tool for temporarily fixing the H-section steel to an existing upper liner plate when the H-shaped steel is mounted between the liner plates.

(Prior Art) In the lining for covering the wall surface of the dug hole with the liner plate 1, the wall surface is covered with the liner plate 1 for digging to a certain depth as shown in FIG. That is,
The liner plate 1 is connected to its wall as the child digs a hole from top to bottom. As is well known, the liner plate 1 has a flange 1a for connecting to the periphery, and is fixed by bolts and nuts using a large number of holes 3 provided in the flange to connect. A reinforcing ring 2 made of H-shaped steel may be attached to the middle portion depending on the type of shaft or soil quality.

The attachment of the liner plate 1 and the attachment of the reinforcing ring 2 are operations performed down to the bottom of the dug hole. The reinforcing ring 2 is connected to the lower flange of the liner plate 1 which has already been attached with bolts and nuts. Normal reinforcement ring 2
Has a weight of more than 60 kilograms. An operator in the hole must hold this by hand and attach it to the flange 1a of the liner plate 1 with bolts and nuts. Moreover, since the work is done at the bottom of the hole, it must be done while keeping the waist.
It will be easily understood that the task is extremely difficult.

(Problems to be solved by the invention) The present invention was made in order to solve the above-mentioned difficulty of work, and it is necessary to temporarily fix the reinforcing ring to the upper liner plate which is already fixed. It is an object of the present invention to provide a temporary fastener that can be used.

[Structure of the Invention] (Means for Solving the Problems) The present invention will be described below with reference to FIG. 1 corresponding to the embodiment. The present invention has a main body metal fitting 11 having at least an abutting portion 13 to be applied to the beam 2b of the H-shaped steel 2 and a stopper member 18 provided with an elongated hole 19 in the abutting portion 13 which is upright, and the above-mentioned elongated hole. It is composed of a key member 12 to be inserted into 19.

The stopper member 18 is formed on the flange 1a of the liner plate 1
The beam 2b of the shaped steel 2 is shaped so that it can be inserted into both holes 3 and 4 provided for connecting these through the bolts.

Further, the body fitting 11 is connected to the contact portion 13 to form a U-shaped straddling portion 20 that straddles the flange 2a of the H-shaped steel 2, and the grip portion 17 is connected to the straddling portion 20. It is desirable to let it do.

(Operation) In order to stop the H-section steel 2 on the liner plate 1 using this, first insert the fastening member 18 of the main body metal fitting 11 into the hole 4 of the H-section steel at both ends and the intermediate portion of the H-section steel. H-shaped steel 2 body bracket 11
Together with, and apply it to the flange 1a of the liner plate 1. At this time, the stopper member 18 is inserted into the hole 3 of the flange. The key member 12 is inserted into the long hole 19 of the stopper member 18 protruding from the flange 3. Key member inserted in this long hole 19
The H-shaped steel 2 and the main body fitting 11 are fixed to the flange 1a of the liner plate 1 by means of 12.

(Embodiment) FIG. 1 shows a temporary fastener 10 according to an embodiment of the present invention, which is a main body metal fitting.
11 and a key member 12.

The main body metal fitting 11 is made of a steel plate and has a rectangular contact portion 13, a hanging portion 14 bent at 90 degrees on one side thereof, a bottom portion 15 bent at 90 degrees at the lower end of the hanging portion, and a bottom portion 15. From the droop
It is made by bending one steel plate so as to form a rising portion 16 bent so as to be parallel to 14 and a gripping portion 17 bent from the rising portion 16 and stopped on the surface of the contact portion 13. Member 18
Is fixed by welding or the like.

The contact portion 13 is a portion to be brought into contact with the beam 2b of the H-shaped steel 2. Further, the hanging portion 14, the bottom portion 15, and the rising portion 16 are U-shaped, and form a straddling portion 20 that straddles a portion below the beam 2b of the H-shaped steel flange 2a. The grasping portion 17 is formed by punching out a rectangular hole so that it can be easily held by a hand, and becomes a handle having an appropriate width.

The stopper member 18 is formed by a plate having a width capable of being inserted into the hole 3 for connecting the H-shaped steel beam 2b and the flange 1a of the liner plate 1 to the flange 2a of the liner plate 1 by bolts and nuts, and the long hole 19 is formed in the plate. . The location where the stopper member 18 is attached to the contact portion 13 is a location that coincides with the position of the hole 4 when the flange 2b of the H-shaped steel 2 is inserted into the bridging portion 20.

The key member 12 is to be inserted into the elongated hole 19 of the stopper member 18, and in the present embodiment, is formed of an insertion portion 21 and a handle 22 bent substantially at a right angle. The insertion part 21 has three pedestals 24, 25, 26 having different heights from the bottom 23, and has a shape in which these are connected by an inclined surface. A plurality of pedestals having different heights from the bottom 23 are provided in order to cope with the difference in plate thickness between the H-section steel 2 and the liner plate 1. If the difference in plate thickness is not taken into consideration, the insertion portion 21 may be a simple rectangular plate without a base portion. Further, this temporary stopper 10 only needs to be temporarily fixed, and even if it is said to be fixed, it is not necessary to firmly fix it by tightening a nut.
Since there may be a slight gap between the top and bottom, the key member 12
The mere plate-shaped product described above can be sufficiently used.

The method of using this will be described below. Depending on the length of the H-section steel, if the length is relatively long, the bridging portion 20 is inserted into the flange 2b of the H-section steel at both ends and the central portion. Then stop member
Insert 18 into hole 4. In this way, three people lift the H-section steel at their respective places, apply the beam 2a from below to the flange 1a of the liner plate 1 already attached, and put the stop member 18 in the hole 3 of the flange 1a. Since the stopper member 18 projects from the flange 1a including the portion of the elongated hole 19, the key member 12 is inserted into the elongated hole 19 of the projected stopper member 18. The H-shaped steel 2 is temporarily fixed to the liner plate 1 by inserting the key member 12 into the long hole 19. Flange 1a at the same time
The hole 3 of 3 and the hole 3 of H-shaped steel are the same in all holes. Therefore, it suffices to insert bolts into these holes and tighten them with nuts. Tightening work with these bolts and nuts is
Since the shaped steel is stably attached to the liner plate by the temporary fixing tool 10, it is not necessary to support the H-shaped steel, and the H-shaped steel can be easily performed in any posture.

In the above embodiment, the body fitting 11 has the grip 17 formed at the tip thereof so as to straddle the flange 2b of the H-shaped steel, but it may be used in a shape in which the straddle 20 and the grip 17 are omitted. it can. However, in that case, the contact part 13
It is desirable to provide L-shape by providing the beam 2a and the flange 2b of the H-shaped steel 2 so that the hanging portion 14 can be held together with the flange 2b.

Further, this embodiment can also be used when temporarily fixing another liner plate under the H-section steel 2 when fixing another liner plate under the H-section steel-attached liner plate. it can. It is desirable to lengthen the height of the stopper member 18 and the length of the long hole 19 in advance in consideration of the case. 3 for the base 24 of the key member 12
If it is provided with about steps, it can be sufficiently used even in this case.

Furthermore, by using this embodiment, it is possible to simultaneously attach the H-section steel 2 and the lower liner plate to the existing upper liner plate 1.

[Effect of the Invention] As described above, according to the present invention, the stopper member of the main body metal fitting is put in the hole of the beam of the H-section steel, the H-section steel is lifted, and the stopper member is inserted into the hole of the flange of the liner plate, Since it is only necessary to insert the key member into the long hole provided in the stopper member, it is possible to easily carry out the work in the middle waist while supporting the heavy H-section steel in a very short time. At the same time, the H-section steel can be positioned by inserting the stopper member of the main body metal fitting with the H-section steel into the hole of the flange. Therefore, the fixing work with the bolts and nuts after the temporary fixing can be easily performed in a desired posture. That is, the present invention can simplify the work of attaching the reinforcing ring in the hole.

Further, according to the second aspect of the present invention, since the main metal fitting is formed with the gripping portion, the gripping portion can be used to lift the H-section steel, which simplifies the work and at the same time the reinforcing ring and the lower side. It is also possible to simultaneously attach the liner plate of the above to the existing liner plate of the upper side.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a sectional view showing a state in which it is temporarily fixed, FIG. 3 is a front view thereof, and FIG. 4 is an H-section steel attached to a liner plate. FIG. 5 is a front view of the wall surface of the shaft due to the liner plate of the vertical shaft. 1: Liner plate, 2: H-shaped steel, 3, 4: Hole, 10 ... Temporary fastener, 11: Main body metal fitting, 12: Key member, 13: Contact part, 17: Grip part, 18: Insert part, 19: long hole, 20: straddle part, 21: insert part.

Claims (2)

[Scope of utility model registration request] 1. A contact part for use in attaching a reinforcing ring made of H-section steel with bolts and nuts between upper and lower liner plates, which is applied to a beam connecting both flanges of H-section steel ( 13) and at least this contact portion (1
3) The stopper member (18) which is inserted into the hole through which the bolt for connecting the liner plate and the H-shaped steel is put upright, and the stopper member is provided with the elongated hole (19), and this elongated hole (19).
A temporary fastener comprising a key member (12) to be inserted into. 2. A straddle portion (20) having a U-shaped cross section that straddles the lower half of one flange of H-section steel is connected to the contact portion (13), and a handle is formed on the straddle portion. The temporary stopper according to claim 1, wherein the grips are connected.