KR0128515Y1 - Control lever for heavy equipment - Google Patents

Abstract

The present invention relates to an improvement in the operation lever for heavy equipment, including a skid steer loader (skid steer loader) is a variety of operations and running by the operation lever. The operating lever according to the present invention is an operating lever of a heavy equipment that applies an operation command to perform at least a left-right direction and a forward-backward operation on a workpiece, the bracket being fixed to a vehicle body, and to be able to pivot back and forth to the bracket. A fixed plate pivotally coupled, a lever pivotally coupled to the fixed plate in a lateral direction, and rotated together with the fixed plate in the forward and backward rotation, and coupled with a lower end of the lever, when the lever rotates in the horizontal direction A left and right rods which are moved up and down and apply a left and right operating command to the workpiece, and are hinged to the fixed plate and are moved in the horizontal and horizontal directions in conjunction with the forward and backward rotation of the fixed plate by the forward and backward rotation of the lever. Consists of a front-rear rod for applying the front-rear operation command to the workpiece. .

Description

Heavy Duty Control Lever

1 and 2 are front and side views respectively showing a conventional lever structure.

3 is a front view showing a state in which the left and right rods are operated by the lever device of the present invention.

Figure 4 is a side view showing a state in which the front and rear rod is terminated by the lever device of the present invention.

5 is an exploded perspective view showing a lever device of the present invention.

* Explanation of symbols for main parts of the drawings

10 fixing plate 11 supporting plate

13: hinge pin 18: bracket

20: front and rear rod 21: shaft pin

30: lever 31: handle

32: actuator 40: left and right rod

The present invention relates to a lever for a heavy equipment, including a skid steer loader (skid steer loader) is carried out by the operation lever and various operations.

Various types of heavy equipment, including skid steer loaders, are operated by levers to operate driving and work tools. The lever adjusts the hydraulic system according to the moving direction to change the direction or the movement of the tool. Typically, one lever is operated in front, rear, left and right and a predetermined work command is applied to the workpiece.

Conventional operating levers having such a function are shown in FIGS. 1 and 2.

FIG. 1 shows that the left and right pivoting is performed by a conventional lever configuration. When the lever plate 6 and the lever 2 hinged are pivoted in the left and right direction, the connecting rod 4 moves up and down in conjunction with the lever plate 6. It is elevated. In addition, the rod bar 8 installed to penetrate the lower portion of the lever plate 6 in association with the lifting and lowering of the connecting rod 4 performs a circular motion, and is hinged to the end of the rod bar 8. The rod 9 is lifted up and down and applies a work command corresponding to the left and right directions to the work object.

On the other hand, FIG. 2 shows that the front and rear rotation is performed by the conventional lever configuration. When the lever 2 is rotated in the front and rear direction, the lever plate 6 is rotated in the front and rear direction together with the lever plate 6. The front and rear rods 5 coupled to) are moved in the left and right directions (forward and backward directions in FIG. 1) on FIG. 2 to apply a work command corresponding to the front and rear directions to the workpiece.

The conventional operation lever configured as described above does not have a major problem in obtaining independent motions in the left and right directions and the front and rear directions, but the positions of the pivots for the point rotation in the left and right directions and the front and rear directions are different from each other. There is a difference in the force exerted by the driver during operation. Therefore, it is difficult to operate, and in particular, the force is not easily balanced by requiring more force when operating the handle in the right and left directions with a short distance between the hinge pins, thereby causing fatigue and causing malfunction. .

In addition, when the configuration is complicated and repeated use because there are a lot of hinge connection portion, this hinge connection portion is loose, there was a disadvantage that the normal operation is not made.

In addition, since the lever plate is sharply exposed, there is a fear of an injury that the driver hits the exposed edge of the lever plate.

An object of the present invention made in view of the conventional problems as described above is to provide an operation lever for heavy equipment that is easier to operate and a constant degree of force is applied, thereby improving convenience.

Another object of the present invention is to provide an operating lever for heavy equipment that can prevent a case of being injured by hitting a corner while improving the merchandise value due to its simple appearance.

In order to achieve the above object, the present invention provides an operating lever of a heavy equipment that applies an operation command to perform at least right and leftward and forwardward and backward directions to a workpiece, the bracket being fixed to the vehicle body, and the front and rear directions to the steel bracket. A fixed plate pivotally pivotally coupled, a lever rotatably hinged to the fixed plate in a lateral direction, and rotated together with the fixed plate at the time of forward / backward rotation, and coupled with a lower end of the lever to the left and right directions of the lever A horizontal rod which moves up and down during rotation and applies a lateral operation command to the workpiece, and is hinged to the fixed plate, and horizontally linked with the forward and backward rotation of the fixed plate by the forward and backward rotation of the lever. Moved to the front and rear direction to apply the forward and backward operation command to the workpiece The road is constructed.

Hereinafter, the present invention will be described with reference to FIGS. 3, 4 and 5 of the accompanying drawings.

The fixing plate 10 is installed on the bracket 18 fixed to the vehicle body, and the fixing plate 10 is pivotally coupled by the bracket 18 and the pivot pin 17, so that the fixing plate 10 is moved forward and backward with respect to the bracket 18. It can be rotated.

The actuator 32 coupled to the lower end of the lever 30 is coupled by the hinge pin 13 to the left and right directions between the support portions 11 integrally formed on both upper sides of the fixed plate 10. A handle 31 is provided above the lever 30. As a result, when the lever 30 is rotated in the front-rear direction (left and right in the case of FIG. 4), the fixed play t1 is rotated in the front-rear direction together with the lever 30. Reference numeral 12 is a fixing hole formed in the support plate 11 to support the hinge pin 13 described above.

The front and rear rods 20 are hinged to the lower end of the fixed plate 10 by the shaft pins 21, and the front and rear rods 20 are moved forward and backward of the fixed plate 10 by the forward and backward rotation of the lever 10. When the direction is rotated, it is moved in the front and rear horizontal directions (based on the drawings of FIG. 3), and a work command corresponding to the front and rear directions is applied to the workpiece.

An actuator 32 is coupled to a lower end of the lever 30, and a left and right rod 40 is hinged to an end of the actuator 32. The left and right direction rod 40 is moved up and down in association with the left and right rotation of the lever 30, and applies a work command corresponding to the left and right directions to the workpiece.

Preferably, the above-described installation height of the hinge pin 13 and the installation height of the pivot pin 17 which couples the fixing plate 10 to the bracket 18 are at the same height, thereby preventing the installation height from the handle 31. The distance between the hinge pin 13 and the pivot pin 17 is equal, so that the force required for the operation is constant even when the lever 30 is operated in any direction.

The above-mentioned actuator 32 may be molded integrally with the lever 30, or may be separately molded by a method by welding. In addition, the end of the movable member 32 may be provided with a locking step 33 to prevent the left and right rods 40 from being separated.

As described above, the present invention can be applied to all the heavy equipment operated by the lever, including a skid steer loader, an excavation gig, and the like. Since the rotation point is at the same height with respect to the lever, by holding the handle formed on the upper end of the lever and operating it in any direction in front, rear, left and right, it can be operated by the same operation force, the operation is easy and the operator's fatigue is reduced. In addition, the configuration is simple and the number of hinged joints is reduced, improving durability and extending the life. In addition, the appearance of the portion exposed to the outside is simple, the product value is enhanced, and the injury of the operator is prevented.

Claims (3)

An operating lever of a heavy equipment for applying an operation command to perform at least a lateral direction and a dry direction operation on a workpiece, comprising: a bracket fixed to a vehicle body, a fixed plate pivotally pivotally coupled to the bracket, and A fixed plate pivotally coupled to the fixed plate in a lateral direction, a lever coupled to the fixed plate in a swivelable direction in a left and right direction, and rotated together with the fixed plate at the time of forward / backward rotation, and integral with a lower end of the lever It is hinged to the end of the formed actuator and is moved up and down when the lever is rotated in the lateral direction, and the rod is connected to the fixed object and the lateral rod is hinged to the fixed plate. In horizontal direction in conjunction with the forward and backward rotation of the fixed plate by Moving heavy equipment and the operating lever of which is characterized by configured by comprising a front-rear direction load applied to the front-to-rear direction operation instruction to Sykes workpiece. The lever of claim 1, wherein the hinge pin and the pivot pin are installed at the same height with respect to the lever. The lever of claim 1, wherein a locking jaw is formed at an end of the actuator to prevent separation of the left and right rods.