JPH067174Y2 - Assumed landing gear - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a hypothetical fixing device for temporarily stopping and fixing the sliding of a heavy object sliding on a rail or the like.

[Prior Art] In the traveling method in which a building is divided and assembled in blocks one by one, the assembly is moved sequentially to assemble the building so that the blocks do not slide against horizontal forces such as earthquakes and wind loads during the assembly. Although it is necessary to fix the block temporarily by fixing it to, the conventional hypothetical attachment method has been to temporarily fix the mounting portion of the rail that slides the block and the sliding portion of the block by bolting.

[Problems to be Solved by the Invention] In the above-mentioned conventional hypothetical attachment method, (1) when the number of sliding parts is large, much work is required for bolt mounting work after completion of block movement and bolt removal work before movement start. And takes time. (2) When the block is pulled and moved by the hydraulic jack, the connecting material between the sliding portions of each block is stretched and the bolt holes preliminarily formed in the sliding portion and the rail mounting portion are displaced, so that the bolt holes are aligned with each other. However, it requires a lot of time because it requires hole alignment work by finely moving a heavy block. (3) If the main fixing is welding, it is necessary to temporarily install a bolt joint for hypothetical attachment, and there is a problem that an extra burden is applied to the temporary material. This invention solves these problems. The task is to do so.

[Means for Solving the Problem] In order to solve the above problems, the present invention provides a wedge body 3 at the tip of a piston rod 2 of a hydraulic jack 1 and a slip stopper 6 on the outer surface of the wedge body 3. , Means for a hypothetical attachment device interposed between two friction plates 4 and 4 having a wedge receiving surface 4a on the inner surface thereof.

[Operation] The operation of the present invention will be described with reference to the drawings of the embodiments. The friction plates 4, 4 are provided between the sliding portion 14 and the rail receiving member 17.
Are inserted in close contact with each other, pressure oil is fed to the hydraulic jack 1 and the piston rod 2 is advanced so that the wedge body 3 advances and the wedge receiving surfaces 4 of the friction plates 4 and 4 are advanced.
When a and 4a are pushed by the slanted surface of the wedge body 3 and pushed up and down, the friction plates 4 and 4 press the anti-slip 6 on the outer surface of the friction plates 4 and 4 to the sliding portion 14 and the rail receiving member 17, so that the weight of the block is reduced. The fixed state of both is held by a force equal to the product of the friction coefficient of the slip stopper 6.

To release this state, pressure oil is sent from the coupler 9 of the return hose to the hydraulic jack 1 and the piston rod 2 is retracted to retract the wedge body 3 and reduce the space between the friction plates 4 and 4. , 4 and the sliding portion 14 and the rail receiving member 17 may be released.

[Embodiment] An embodiment of the present invention will be described with reference to the drawings.

In FIG. 1 and FIG. 2, reference numeral 1 is a hydraulic jack, and a wedge body 3 is provided at the tip of a piston rod 2. The wedge body 3 is formed separately from the piston rod 2 and is screwed into the piston rod 2. Friction plates 4 and 4 having wedge receiving surfaces 4a on their inner surfaces are in contact with the upper and lower sides of the wedge body 3, and the upper and lower friction plates 4 and 4 are normally connected by their connecting pins 5 at their outer peripheral edges. However, when pressure oil is sent into the hydraulic jack 1 and the piston rod 2 is advanced, it is pushed up and down by the wedge body 3 at its tip to open the inner peripheral edge 4b of the friction plate 4 as shown by the chain line. Has become. The outer surface of the friction plate 4 is subjected to anti-slip processing with continuous sharp peaks so as to increase friction resistance, and a non-slip 6 is formed. 7 is a push hose coupler, 8
Is a stop valve, and 9 is a coupler for a return hose.

The case of using the presumed landing gear configured as described above will be described. To perform traveling, as shown in FIG. 3, upper and lower bearings 11, 12 are provided at the lower end of the steel column 10 of the building block. The truss 16 of the structural body is provided with a shoe 15 having a sliding portion 14 having a low friction material 13 such as tetrafluoroethylene resin adhered to the lower surface of the lower bearing 12.
The low-friction material 13 is slidably mounted so as to be in contact with the rail 18 on the rail receiving material 17 attached to. After the completion of the movement of the block, in order to make it hypothetically attached, a hypothetical attachment device is inserted between the sliding portion 14 of the block and the rail receiving member 17 in a state where the hydraulic jack 1 is contracted, and pressure oil is applied to the hydraulic jack 1. The wedge body 3 is fed to the friction plates 4, 4 and the wedge receiving surface 4
By advancing between a and 4a as shown by a chain 3a, the friction plates 4 and 4 are spread apart and the slip stopper 6 on the outer surface is pressure-bonded to the sliding portion 14 and the rail receiving member 17,
Due to the large weight of the block and the surface having a large friction coefficient generated by the slip stopper 6, the horizontal movement between the sliding portion 14 and the rail receiving member 17 cannot be performed and the sliding state can be fixed. At this time, the stop valve 8 of the hydraulic pipe is closed to prevent the pressure oil from returning and maintain the fixing state.

To release the fixing state, pressure oil is sent from the coupler 9 of the returning hose to the hydraulic jack 1 and the piston rod 2 is returned,
By retracting the wedge body 3 and reducing the space between the friction plates 4 and 4, the pressure-bonded state of the friction plates 4 and 4 is released, and the sliding portion 1
The block can slide with a small friction coefficient between the low friction material 13 of 4 and the rail 18.

The present invention is not limited to the traveling method, and can be efficiently used instead of temporarily fixing the sliding member by bolting or the like.

[Advantages of the Invention] This invention can (1) reduce the time and effort required for mounting and removing the bolts as in the past, because the sliding part can be assumedly attached only by the pressure oil feeding operation. ,
(2) Since it is possible to make a hypothetical attachment at any position, the time required for fine adjustment of the position of a block with a large weight is not required because the bolt holes are aligned as in the conventional case, and the working time can be significantly shortened. (3) Conventional As described above, there is no need for a temporary material for joining bolts, which has the effect of reducing costs.

[Brief description of drawings]

1 and 2 show an embodiment of the present invention, in which FIG. 1 is a front view showing a part in section, FIG. 2 is a plan view thereof, and FIG. 3 is a sliding portion of a block. It is a front view showing the state where a hypothetical attachment device was installed between rail receiving materials. 1 ... Hydraulic jack, 2 ... Piston rod, 3 ... Wedge body, 4 ... Friction plate, 4a ... Wedge receiving surface, 6 ... Non-slip.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kiyoto Masumura 8-21-1, Ginza, Chuo-ku, Tokyo Stock company Takenaka Corporation Tokyo Main Store (72) Inventor Ryoichi Takai 3895 Uehongo, Matsudo-shi, Chiba

Claims (2)

[Scope of utility model registration request] 1. A hydraulic jack (1) is provided with a wedge body (3) at the tip of a piston rod (2), and the friction body (3) has two wedge plates (4a) on its inner surface. A hypothetical wearing device interposed between 4) and (4). 2. A hypothetical wear device according to claim 1, wherein the friction plates (4), (4) are provided with slip proofs (6) on their outer surfaces.