KR100257851B1 - Post type air balancer - Google Patents

Abstract

PURPOSE: An air balancer of post type is provided to reduce raw cost without requiring an additional brake device for preventing rapid lifting of a hook, by adopting a speed controller for controlling supply amount of compressed air and to largely select installation place of hoist when using the hoist by disposing rotatable members turning lifted articles at plural places. CONSTITUTION: In state of holding a handle(16a) of a switch(16), upon manipulation of an up lever(16b), compressed air stored in an arm(11) is provided to be extended to a cylinder(14). Accordingly, a wire supported by a cylinder rod is retained inwardly of a turning member(12) and a hook(13) is lifted up within a stroke range. The switch for ascending and descending the hook is fixed rotatably by an affixing instrument and separately rotating or turning about a wire to prevent twisting event of the wire during lifting an article. On manipulating the lever of switch for raising the hook and by applying over-specific-pressure, compressed air that is entered into a cylinder(14) by a speed controller(20) is intercepted. According to switching over of the speed controller, compressed air is discharged toward atmosphere. Thereby, during manipulating the up lever of the switch, rapid lifting of the hook is avoided and the valve spring(20a) lies in a compressed state.

Description

Post Type Air Balancer

The present invention relates to a post-type air balancer (POST TYPE AIR BALANCER), and more specifically, when mounted in a predetermined position in the state of lifting (LIFTING) light and heavy items, such as in a car production line, such as compressed air supply The present invention relates to a post-type air balancer that makes it possible to easily adjust the fine mounting height of an article hanging on a hook that is lifted and lowered when driving a cylinder reciprocating within a predetermined stroke range.

In general, when assembling and mounting at a predetermined position in a state of lifting light and heavy items, such as in an automobile production line, the operator directly operates the switch to drive the hoist to work while lifting and lowering the goods.

However, when the hoist drive switch is not operated while the article is lifted to a predetermined height using the electric hoist, the minute mounting position of the article hanging on the hook of the hoist cannot be adjusted, and the operator lifts the lifted article. By directly supporting and fitting to a mounting position of a predetermined height, the worker's fatigue is increased, and work efficiency is greatly reduced.

4 is a schematic diagram of a controller for manipulating the supply and discharge of compressed air to an air balancer according to the prior art. As shown, the hoses 3 and 4 are connected to draw and discharge the compressed air to the controller 2, in which the wire W is fixed at the top and the hook 1 is fixed at the lower end. A lever 5 for raising and lowering (1) is rotatably mounted to the controller 2 to open and close the inlet and outlet passages of the compressed air. Thus, the operator can raise and lower the aforementioned hook 1 due to the control of the compressed air as the lever 5 is operated to lift a predetermined article hanging on the hook 1.

However, when the article to be lifted by the hook 1 is lightweight, one hand of the user rotates the lever 5 up and down by using the other hand while holding the controller 2 described above. As the hook 1 is lifted and lowered, there is a problem in that inconvenience in operating the lever 5 is required to lift the article.

In addition, since the aforementioned controller 2 is integrally fixed with respect to the wire W, when the lever 5 is rotated or rotated according to the working condition, the wire is simultaneously rotated or twisted or twisted at the time of lifting the article. This occurs and has a problem that a safety accident occurs.

Accordingly, an object of the present invention is to provide a cost controller for controlling the supply amount of compressed air in the compressed air inlet passage of the cylinder for lifting and lowering the hook, and thus eliminates the need for a separate brake device that prevents the hook from rising rapidly. It is to provide a post type air balancer to reduce.

It is still another object of the present invention to form a plurality of turning portions (2 POINT) for turning a lifting object 360 ° due to the cylinder drive so as not to interfere with the work space when using the hoist, and to select a wide range of installation places of the hoist. One post type air balancer is provided.

Another object of the present invention, the switch for adjusting the supply of compressed air to the cylinder for lifting and lowering the hook during driving can be rotated and rotated separately with respect to the wire to provide convenience to the user, the wire when lifting the article It is to provide post type air balancer to protect worker from safety accident due to the prevention of twist.

1 is an overall perspective view of a post type air balancer according to an embodiment of the present invention;

Figure 2 is a detailed view showing the rotation and rotation of the switch for manipulating the supply and discharge of compressed air to the cylinder of the post-type air balancer according to an embodiment of the present invention,

Figure 3 (a) (b) is a schematic diagram showing a state of use of the post-type air balancer according to an embodiment of the present invention,

4 is a schematic diagram of a controller for manipulating the supply and discharge of compressed air to an air balancer according to the prior art.

* Explanation of symbols used in the main part of the drawing

10; column (COLUMN) 11; arm

12; pivot member 13; hook

14; cylinder 15; fixation

16; switch 16a; handle

16b; UP lever 16c; DOWN lever

17; Hinge pin 20; Speed controller

20a; valve spring W; wire

An object of the present invention described above, the lower end is fixed to the bottom surface; An arm whose one end is pivotally fixed in the forward and reverse directions by a predetermined fixing means on an upper end of the pillar; A pivot member which is pivotally fixed to the other end of the arm in the forward and reverse directions by the fixing means; When the compressed air is supplied, it is fixed to the pivot member so as to reciprocate in a horizontal direction within a predetermined stroke range, and when extended, the hook is raised by receiving a wire fixed to the pivot member in the pivot member to raise the hook, A cylinder which pulls out from the pivot member to lower the hook; The hook is fixed at the lower end and is rotatably fixed and rotated by a predetermined fixing means with respect to the fixing piece on which the wire is fixed at the upper end. The hook is lifted up and down by opening and closing an air passage for introducing and discharging compressed air to the cylinder. Letting switch; And a speed controller mounted to communicate with the compressed air inlet passage of the cylinder, and blocking the compressed air introduced into the cylinder when the up lever of the switch is operated at a predetermined pressure or more. By providing a post type air balancer.

According to a preferred embodiment, the pillar and the arm communicate with each other so as to receive compressed air therein and are sealed, and a check valve for controlling the flow direction of the compressed air is formed on one side of the pillar to supply compressed air to the cylinder. When shut off, compressed air accommodated in the pillar and the arm is supplied to the cylinder.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are intended to assist in understanding the technical contents of the present invention, and thus the technical scope of the present invention is not limited.

As shown in Figs. 1 to 3, the bottom is closed and the hollow pillar 10 COLUMN is fixed to the bottom surface, and one end of the arm 11 is fixed to the top of the pillar 10 by predetermined fixing means. The pivot member is fixed in a forward and reverse direction, and the pivot member 12 is fixed to the other end of the arm 11 in a forward and reverse direction by the aforementioned fixing means. Receiving the wire (W) fixed to the (12) and supported by the cylinder rod in the pivot member 12 to raise the hook (13), the wire (W) from the pivot member 12 when contracted by the discharge of compressed air The cylinder 14 which draws out and lowers the hook 13 is fixed to the above-mentioned pivot member 12 so as to reciprocate in the horizontal direction within a predetermined stroke range, and the fixing piece to which the hook 13 is fixed at the lower end in rotation. (15) The other end of the wire (W) is fixed to the upper end, the compression hole for the cylinder (14) The switch 16 for opening and closing the air passage through which the inlet and outlet is lifted up and down the hook 13 is rotatably fixed to the fixing piece 15 by a predetermined fixing means, and the switch 16 is fixed to the fixing piece 15. It is rotatably fixed to the hinge pin 17 which is fixed to).

At this time, the configuration of the arm 11 with respect to the pillar 10 and the predetermined fixing means for pivotably fixing the pivot member 12 against the arm 11 in the forward and reverse directions is a general pivot member. It is to be noted that the configuration of the configuration and the operation thereof are omitted.

On the other hand, the pillar 10 and the arm 12 described above communicate with each other to supply the compressed air contained in the pillar 10 and the arm 12 to the cylinder 14 when the compressed air supplied to the cylinder 14 is blocked. To be sealed, and a check valve 19 for controlling the compressed air flow direction is formed at one side of the pillar 10.

When operating the up lever 16b of the switch 16 to a predetermined pressure or more, the speed controller 20 which blocks the compressed air supplied to the cylinder 14 and prevents the hook 13 from rising sharply is provided with the cylinder 14 of the cylinder 14. It is installed to communicate with the compressed air inlet passage. Reference numeral 20 is a valve spring for opening the air inlet passage so that the compressed air is drawn into the cylinder 14 when the up lever 16b of the switch 16 is operated below a predetermined pressure.

Reference numeral 16a denotes a handle used when the switch 16 is used, 16b an UP lever for supplying compressed air to the cylinder 14 to raise the hook 13, and 16c the compressed air from the cylinder 14. Down (13) lever for lowering the hook 13 by discharging, 18 is a reinforcing member for supporting the pivot member 12 against the arm (11).

Referring to the method of using the post-type air balancer according to an embodiment of the present invention configured as described above are as follows.

As in the automobile assembly line, when the light and heavy items are lifted and assembled and mounted at a predetermined position, the user lifts the handle 16a of the switch 16 described above by the user. By operating the lever 16b, the compressed air supplied and stored in the above-described pillar 10 and the arm 11 communicating with it from a predetermined compressed air source is supplied to the above-described cylinder 14 and extended. (Shown in Figure 3 (a)). For this reason, as the wire W fixed to the inside of the pivot member 12 and supported by the cylinder rod is received inside the pivot member 12, the hook 13 is lifted within a predetermined stroke range. Lose.

On the other hand, by operating the DOWN lever 16c of the switch 16 described above to lower the hook 13, compressed air is discharged and contracted from the cylinder 14 described above (Fig. 3 (b)). Shown in). For this reason, as the wire W mentioned above is withdrawn from the turning member 12, the hook 13 is lowered in the predetermined stroke range.

At this time, if the compressed air passing through the above-described pillar 10 and the arm 11 is blocked from being supplied to the cylinder 14 during the operation of elevating the hook 13, the one side of the pillar 10 described above is provided. As the compressed air inside the pillar 10 and the arm 11 is blocked from being discharged from the pillar 10 by the mounted check valve 19, the compressed air stored in the pillar 10 and the arm 11 is stored. By raising and lowering the hook 13 it is possible to ensure the safety.

In addition, as shown in Figure 2, the switch 16 for raising and lowering the above-described hook 13 is rotatably fixed by a predetermined fixing means with respect to the above-described fixing piece 15, the switch 16 Is rotatably fixed by the hinge pin 17 fixed to the fixing piece 15, the above-described switch 16 can be rotated and rotated separately with respect to the wire W in operation, so that the wire at the time of lifting the article (W) can be prevented from twisting.

And, as shown in Figure 1, by operating the up lever 16b of the switch 16 in order to raise the aforementioned hook 13 to a predetermined height by the user to apply a predetermined pressure or more to operate at a predetermined speed or more In this case, the compressed air introduced into the cylinder 14 is blocked by the aforementioned speed controller 20 mounted in the air inflow passage of the cylinder 14 described above. That is, as the internal spool of the speed controller 20 is switched (at this time, the valve spring 20a is in a compressed state), the compressed air introduced into the cylinder 14 is discharged to the atmosphere.

Accordingly, it is possible to prevent the hook 13 from rising sharply when the up lever 16b of the switch 16 is operated at high speed.

As described above, according to the preferred embodiment, the speed controller for controlling the supply amount of the compressed air is mounted in the compressed air inlet passage of the cylinder for lifting and lowering the hook, so that a separate brake device is not required to prevent the hook from rising. Reduces cost costs and has the advantage of significantly improving work efficiency

In addition, by forming a plurality of turning portions (2 POINT) for turning the lifting object 360 ° due to the cylinder drive to avoid interference from the work space when using the hoist, has the advantage that the installation location of the hoist can be selected widely .

On the other hand, the switch that adjusts the supply of compressed air to the cylinder for lifting and lowering the hook during operation can be rotated and rotated separately with respect to the wire to provide convenience to the user, and safety due to the prevention of twisting of the wire when lifting an article It has the advantage of protecting workers from accidents.

Claims (2)

A pillar whose bottom is closed and fixed to the bottom surface; An arm whose one end is pivotally fixed in the forward and reverse directions by a predetermined fixing means on an upper end of the pillar; A pivot member which is pivotally fixed to the other end of the arm in the forward and reverse directions by the fixing means; When the compressed air is supplied, it is fixed to the pivot member so as to reciprocate in a horizontal direction within a predetermined stroke range, and when extended, the hook is raised by receiving a wire fixed to the pivot member in the pivot member to raise the hook, A cylinder which pulls out from the pivot member to lower the hook; The hook is fixed at the lower end and is rotatably fixed and rotated by a predetermined fixing means with respect to the fixing piece on which the wire is fixed at the upper end. The hook is lifted up and down by opening and closing an air passage for introducing and discharging compressed air to the cylinder. Letting switch; And And a speed controller mounted to communicate with the compressed air inlet passage of the cylinder, and blocking the compressed air introduced into the cylinder when the up lever of the switch is operated at a predetermined pressure or more. Post type air balancer. The compressed air of claim 1, wherein the pillar and the arm communicate with each other so as to receive compressed air therein, and a sealed valve is formed on one side of the pillar and the compressed air is supplied to the cylinder. Post-type air balancer, characterized in that for supplying the compressed air accommodated in the pillar and the arm to the cylinder when shut off.