JPS5947085B2 - Holding device for transporting bridges etc. - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for stably holding a bridge girder or the like on a vehicle when the bridge girder or the like is transported by a vehicle.
To provide a device that is easy to attach and detach from an object and has high strength and safety.

Conventionally, when transporting heavy and tall bridge structures, etc. by vehicle, in order to prevent them from toppling over due to turbulence during transportation, a structure that fits between the loading surface of the vehicle and the loaded object is used. A wooden frame is constructed each time to secure the cargo to the vehicle.

Therefore, a considerable amount of time and effort is required for assembling the frame and fixing it to the loaded object when loading it onto a vehicle, and disassembling it when taking it down, and the cost is also high.

The present invention eliminates these drawbacks, has great flexibility in the shape of objects, is easy to attach and detach, is strong, and can reliably hold bridges and the like.

The present invention will be described below with reference to embodiments shown in the drawings.
A is a bridge on which B is to be transported, and a pillow on which B is placed is provided at both ends of the pillow.

That is, the support device includes a hydraulic jack 1, a fixed bracket 2, a tension link 3, a supporting frame 4, and a picture frame 5.

The hydraulic jack 1 has a cylinder base pinned to the end of a pillow beam A, and a piston lock nut 12 is provided.

The fixing bracket 2 is fixed and protrudes upward from the center of the hydraulic jack 1 and the pillow 9A.

The tension link 3 is a pin 2 provided on the head of the fixing bracket 20.
1 and the common pin 11 provided at the piston end of the hydraulic jack 1.
A plurality of pin holes 31 for one insertion are formed so as to be adjustable.

The lower end of the support frame 4 has a support plate 41 provided at its tip and is pinned to the end of the piston by a common pin 11.

The picture frame 5 has a proximal end of a frame having a hook 51 at its tip, which is pinned to the supporting frame 4.

The present invention is constructed as described above, and when not in use, the retaining hooks 51 are engaged with the pins 43 provided on the opposing support frames 4 to support the left and right support frames 4 so that they do not fall down relative to each other.

When in use, as shown by the solid line in Fig. 1, the retaining hooks 51 and pins 43 are released, and the bridge beam B is placed on the pillow beam A, so that the top end of the support frame 4 is aligned with the bridge beam. Operate the jack 1 so that it comes into close contact with the lower surface of the flange of the girder B, and fix the piston of the jack 1 with the lock nut 12.

Referring to Figures 2 and 3, the weight of B bridged over P, α is the support frame 4
If the angle between the and jack 1, θ is the inclination angle when the bridge/girder falls, Pl is the compressive force generated on the support frame 4, P2 is the compressive force on the jack 1, and P3 is the tension on the tension link 3, then The relationship holds true.

Therefore, the weight P of the pier and the angle of inclination θ at which the pier falls (can be calculated at the design stage, but it is approximately 3 degrees).

), the required strength and relative position of each member can be accurately designed, and the safety of the entire device can be ensured.

To remove the holding device of the present invention from the bridge in order to remove the bridge B from the vehicle, it is extremely easy to remove the jack 10 locking device and loosen the jack.

Note that the reference numeral 42 in FIG. 1 is a length adjustment device for the support frame 4, and it is convenient to provide this when the height of the bridge to be held for transportation varies.

That is, according to the present invention, when transporting a vehicle such as a bridge, the pillow is
By simply operating the jack for an object placed on the vehicle, a heavy and tall object can be secured in the vehicle without the risk of tipping over (it can be transported safely, and it can also be easily unloaded). Since the retention is released by operating the jack, the efficiency of loading and unloading is significantly higher than that of the conventional retaining means using a timber frame (and it also has remarkable effects such as a high degree of safety during transportation). It is something that you have.

[Brief explanation of drawings]

FIG. 1 is a front view of the device of the present invention, FIG. 2 is an explanatory diagram of the relationship between the inversion angle and weight, and FIG. 3 is an explanatory diagram of the loads applied to each part of the device of the present invention. 1 is jack, 11 is common pin, 12 is lock nut%
2 is a fixed bracket, 21 is a mounting pin, 3 is a tension link, 31 is a bottle hole, 4 is a support frame, 41 is a stop plate, 42 is a length adjustment device, 4 is a pin, 5 is a picture frame, 51 is a retainer , A is the pillow beam %B is the bridge.

Claims (1)

[Claims] 1 A pair of mutually axially symmetrical supporting devices as described below are provided at both ends of the pillow beam A on which the bridge girder to be transported by vehicle is placed, and the supporting devices pin the base of the cylinder to the end of the pillow beam A. A hydraulic jack 1 having a piston locking device, a fixing bracket 2 protruding upward from the center side of the pillow beam A, a pin 21 provided on the head of the fixing bracket 20, and a piston end of the hydraulic jack 1. The tension links 3 are each pinned to a common pin 11 provided on the frame, the support frame 4 has the lower end of the frame pinned to the common pin 11, and the base end of the frame with a trade hook 51 at the tip is attached to the support frame. A holding device for transportation such as a bridge girder consisting of a picture frame 5 pinned to a frame 4.