KR20080084891A - Safety step storage device for tire crane - Google Patents

Abstract

A foothold storage of a tire crane is provided to shorten installation and removal time thereof for rapid and safe operation of the tire crane by being installed instantly on the tire crane. A foothold storage of a tire crane includes outriggers, a sub foothold(c), a main foothold, and a hydraulic cylinder. The outriggers are formed on both sides of the sub foothold and stabilize the tire crane by fixing the tire crane on the ground. The sub foothold is formed on an end of the hydraulic cylinder and has a platform. The platform is mounted above the main foothold. The main foothold is drawn out allowing the sub foothold stopped by a stopper formed in the main foothold. The hydraulic cylinder moves the main foothold up to a ground(j) for fixing the tire crane.

Description

Safety scaffolding device for tire cranes {omitted}

1 is a state in which the safety scaffolding device mounted on the tire crane

2 is a state in which the safety footrest is stored in the outrigger of the tire crane

Figure 3 is a state seated on the ground safety footrest on the outrigger of the tire crane

4 is a state diagram of the outrigger safety footrest of the tire crane

Figure 5 is a cross-sectional view of the outrigger safety step storage position of the tire crane

Figure 6 is a state seated on the ground of the outrigger diagonal safety footrest of the tire crane

Figure 7 is a state diagram of the outrigger diagonal safety footrest of the tire crane storage position

Figure 8 is an outrigger safety scaffold stopper of a tire crane

9 is a view showing the outrigger auxiliary footrest of the tire crane

10 is a perspective view of the outrigger diagonal safety footrest platform of the tire crane;

11 is a structural diagram of the outrigger cylinder and the auxiliary scaffold of the tire crane

12 is a structural diagram of the outrigger safety scaffold of a tire crane

Figure 13 is a cross-sectional view of the auxiliary crane and the safety footrest of the tire crane coupled

14 is a side view of an outrigger safety scaffold stopper of a tire crane

15 is a front view of an outrigger safety scaffold stopper of a tire crane

Fig. 16 is a diagram of the safety step lock chain of the outrigger of the tire crane;

※ Explanation of code for main part of drawing ※

a Outrigger b Outrigger cylinder c Second foot c2 Second foot

d Safety scaffold e Grease nipple f Direction g stopper 1

h Stopper 2 i-frame j bottom k chain

g11 hanger entrance g12 hanger groove cc combed side ec flat groove

p center r road frame s bolt q bolt hole

v height reinforcement b1 cylinder casing

The present invention relates to a support scaffold of a tire crane, and the conventional safety scaffolding has limitations in operation according to the width of the movable crane, so that the crane works after installation on the scaffold of the crane support, and after the end of the work, the safety scaffold is recovered and stored, but the safety scaffold is lost. It was inconvenient to store and store due to it, and it was inconvenient because it took some time to install the safety scaffold and auxiliary scaffold according to the condition of the ground, and the tire crane operators sometimes lifted the crane by lifting the crane without installing the scaffold. Or damage to the crane support has occurred

The present invention is equipped with a safety scaffold of the tire crane mounted on the outrigger scaffold during operation by the slide storage method inside the crane width, so that the fixed seeker safety scaffold does not protrude in the travel limited width and is safe even in the cargo truck crane mounted by structural changes When the footrest storage device is installed, the distance between the steering front wheel and the steering front wheel of the vehicle manufactured by each company is not constant and different, so when the crane outrigger is stored, In the center, the device was installed as a single shaft, but according to the present invention, the safety footrest was fixed between the 1-axis and 2-axis tires by adjusting it to the center axis, and the rear wheel was installed as a horizontal slide storage system to secure the safety foot that was slide-received during crane work When seated in the center of auxiliary footrest and stabilized crane Extends the length of the outrigger to the center of the safety scaffold and the edge of the safety scaffold, and each mounted safety scaffold evenly distributes the pressure area with the ground to prevent the risk of overturning the crane and to make the crane work safe. To make it easy to store and store

Both the outriggers (a) that secure the tire crane to stabilize the crane during operation, that is, the edges of both sides of the auxiliary scaffolding 1 (c) consisting of a square (c) or a circular (c2) at the end of the hydraulic cylinder at the bottom of the crane leg. It consists of the inclined surface (cc) and the auxiliary scaffold having the inclined surface (cc) has a forward and backward platform (ec), and the platform having the inclined surface (ec) is installed on the upper surface of the safety footrest (d) and the safety footrest (d) When it is pulled, the auxiliary footrest (c) is stopped at the stopper (h) of the safety footrest (d) installed at the rear side, and the auxiliary footrest (c) and the center (p) of the safety footrest (d) are formed. (b) Move down the seeker safety scaffold on the ground to secure the crane. When the work is finished, lift the hydraulic cylinder (b) in reverse order and lift the seeker safety scaffold (d) and then lift the safety scaffold (d). Shoe of the safety footrest (d) installed in front of the pushing surface When the auxiliary scaffold (c) is stopped on the fur (g) and the edges of the auxiliary scaffold (c) and the safety scaffold (d) coincide with each other, the outrigger cylinder is retracted and the outrigger cylinder casing (b1) bottom surface and the auxiliary ( c) As the scaffold contracts to the flat groove (ec) on the upper side of the safety scaffold (d), the safety scaffold is pressed and fixed to prevent protruding out of the vehicle body, and the auxiliary scaffold (c) is installed in a square or polygon (c2) to ensure safety scaffolding. It prevents it from rotating and hits the tire, and the distance between the steering front wheel 1 and steering front wheel 2 axes is not constant for each company car. In the center of b), the device is mounted on the single shaft of the cylinder (b), but the safety foot between the steering 1-axis and 2-axis tires is secured by the safety scaffold storage device of the tire-driven crane according to the present invention. The fixed station to the Single shaft and during operation, is adjusted in a diagonal sliding device according to the central axis

If the cylinder rod fails to secure the safety footing due to leakage of the cylinder or other factors, the auxiliary footing (c) and the safety footing (d) are used as the locking chain (k) installed at the edge of the auxiliary footing (c) for emergency fixing. Safety footrest (d) even when driving the safety footsteps by inserting the chain (k) into the hook groove (g) 12 of the stopper 1 (g) having a curved surface on the safety footrest (d) and provided with leaf spring type elasticity This system prevents protruding from the outside of the body and installs grease nipples (e) in the center of the outside of the platform (ec) for smooth operation when storing the safety step (d).

Eliminates the loss of the tire crane safety scaffold, saves time by installing the safety scaffold, eliminates the need for a safe scaffold storage space, installs the safety scaffold immediately, reduces the time required for installation and collection, and prepares the crane for lifting work safely and quickly. Have to

Claims (5)

In the safety step storage device of a tire crane When the safety foot is pulled while the outrigger cylinder is lowered to the ground, the auxiliary foot stops at the stopper of the safety foot that is installed at the front, so that the center of the auxiliary foot and safety foot coincides. As the edges of the scaffolds are aligned and the safety scaffold is in contact with the casing of the hydraulic cylinder due to the contraction of the outrigger hydraulic cylinder, the safety scaffold is fixed and released, and the auxiliary scaffold and the safety scaffold in case of emergency fixation. Lock chain installed on the edge of the stopper, which is made of curved and elastic stopper, which is attached to the side of the auxiliary footrest, locks the auxiliary footrest and the safety foothold by inserting the chain into the hook groove of the stopper of the safety footrest. The point where the grease nipple is installed at the center outside the platform Safety cylinder storage device for tire crane consisting of the point where the edge of the hydraulic cylinder at the bottom of the crane bridge is composed of both sides of the auxiliary scaffold with a slope, and the space above and below the safety scaffold on the upper side of the safety scaffold and the flat groove with the slope According to claim 1 The scaffolding consists of squares or polygons The interior of the safety scaffold is hollow or single With safety scaffolding arrangements for cranes mounted on trucks due to structural changes According to claim 6 Safety scaffolding device of a tire crane, in which the flat groove of the auxiliary scaffold is installed diagonally on the upper surface of the safety scaffold

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