KR100421782B1 - pedal of having seperate cover - Google Patents

Abstract

The present invention is a mechanical device and a hydraulic pedal to control the working device to be supplied and driven in one direction and the work device supplied and driven in both directions to selectively work in accordance with the working conditions work device by the wrong operation of the driver In the hydraulic and mechanical pedals having a cover that is operable and rotated in both directions, to prevent a malfunction thereof, the left and right lids are formed on each of the left and right bosses 11 and 12 so as to be independently rotatable. Facingly, it has a locking jaw to rotate the left and right cover individually or simultaneously to open or close the pedal.

As a result, mechanical and hydraulic pedals that control the work device driven in one direction and the work device driven in both directions can be selectively replaced according to the working conditions so that the work device malfunctions due to driver misoperation or equipment fluctuation. Can be prevented from being damaged.

Description

Pedal of having seperate cover

The present invention relates to a pedal having a removable cover that can prevent erroneous operation of hydraulic and mechanical pedals operated in both directions (refer to front and rear or left and right directions).

In particular, mechanical and hydraulic pedals that control work to be supplied and driven in one direction and work devices supplied and driven in both directions can be selectively replaced according to the working conditions. The present invention relates to a pedal having a removable cover that can prevent malfunction.

1 is a schematic diagram of a pedal having a detachable lid according to the prior art.

As shown, as the cover 1 is formed integrally in the hydraulic and mechanical pedals 2 which are operable in both directions and have the cover 1, the hydraulic oil discharged from the hydraulic pump P is a direction change valve ( In the case of the work device 5 (for example, double acting hydraulic cylinder) supplied and driven to both ports 6 or 7 via V), the pedal 2 is turned leftward (3) or rightward. In operation (4), no problem occurs in driving the work device 5 at all.

On the other hand, the hydraulic oil discharged from the hydraulic pump (P) is supplied only in one direction to the upper portion of the work device (8) via the direction switching valve (V), the hydraulic oil discharged from the lower portion of the work device (8) If the operator wants to replace it with a work device 8 (for example, a hammer) returned to the tank 9 via the directional valve V, the driver may It must be operated only in the right direction (4).

However, in consideration of the nature of heavy equipment, work is often performed in an environment with poor working conditions. When operating 2) in the left direction, when the hydraulic oil discharged from the hydraulic pump P is supplied to the lower part of the work device 8, there is a problem that causes a fatal adverse effect or damage to the work device 8.

Accordingly, an object of the present invention is to provide a mechanical and hydraulic pedal for controlling the work device driven in one direction and the work device driven in both directions to selectively work according to the working conditions due to the misoperation of the driver or the shaking of the equipment. It is to provide a pedal having a removable cover that can prevent the work device from being damaged due to malfunction.

1 is a schematic view of a pedal having a detachable lid according to the prior art,

Figure 2a is a state in which the left and right cover is closed in the pedal having a removable cover according to the present invention, Figure 2b is a perspective view showing the locking state of the locking jaw of the left and right boss of Figure 2a,

Figure 3a is a state in which the right cover is open in the pedal having a removable cover according to the present invention, Figure 3b is a perspective view showing the locking state of the locking jaw of the left and right boss of Figure 3a,

Figure 4a is a state in which the left and right cover is open in the pedal having a removable cover according to the present invention, Figure 4b is a perspective view showing the locking state of the locking jaw of the left and right boss of Figure 4a,

5 is a state diagram of use of the pedal having a removable cover according to the present invention.

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

10; pedal

11; Left boss

12; Right boss

13; Left cover

14; Right cover

15a, 15b; Jam

The object of the present invention described above, in the hydraulic and mechanical pedals having a cover that is operable and rotated in both directions, the left boss 11 and the right boss 12 is formed rotatably separated by the pedal 10, The left cover 13 and the right cover 14, which are fixed integrally to the left boss 11 and the right boss 12, respectively, are rotated independently of the pedal 10, and the left and right bosses 11 and 12 The pedal having a separate cover formed on each side facing each other, and having a locking jaw (15) for opening or covering the pedal (10) by restraining the opposite cover at the same time when rotating the one side cover By providing.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in Figures 2 to 5, applied to the hydraulic and mechanical pedals having a cover that is operable and rotated in both directions, the parts applied substantially the same as shown in Figure 1 are denoted by the same reference numerals, It is noted that the detailed description thereof is omitted below.

Therefore, according to a preferred embodiment of the present invention, the pedal 10 that can be operated in both directions, the left boss 11 and the right boss 12 and the left boss 11 that is formed rotatably above the pedal 10, 11 ) Is formed on one side of the left cover 13 and the right cover 14 and left and right bosses 11 and 12 that are fixed integrally to the right boss 12 and rotated independently of the pedal 10, respectively. When the cover rotates to restrain the other cover at the same time is provided with a locking jaw (15) for opening or covering the pedal (10).

Reference numeral 16 denotes a hammer driven by the hydraulic oil supplied in only one direction, and H and I indicate a locking state of the locking jaws 15a and 15b of the bosses 11 and 12 of the left and right cover 13 and 14, respectively. .

In the following, the operation of the pedal having a removable cover according to the present invention will be described in detail with reference to the accompanying drawings.

Figures 2a and 2b is a state in which all of the separate left and right cover (13, 14) that is integrally fixed to the left and right bosses (11, 12) described above and rotated independently. That is, the boss 12 of the right cover 14 is hung on the boss 11 of the left cover 13.

At this time, in the case where the working oil discharged from the hydraulic pump P is to be supplied only in one direction, that is, work device 8 (for example, hammer) shown in FIG. As shown in FIGS. 3A and 3B, the right side cover 14 of the left and right side covers 13 and 14 is lifted up and opened upward with respect to the right boss 12 as a center axis (at this time, the left side cover 13 is formed at the initial stage). The hydraulic fluid discharged from the hydraulic pump P by operating the pedal 10 in the right direction while only the right cover 14 is opened, the direction switching valve (V) switched to the right direction in the drawing. It is supplied to the upper portion of the working device 8 via), wherein the working oil discharged from the working device (8) is drained to the tank (T) via the direction switching valve (V).

Therefore, when working with the work device 8 which is supplied with the driving oil in one direction and is driven, since only the right cover 14 is opened, the working oil is moved in the opposite direction to the work device 8 by the erroneous operation of the driver. Supply is prevented.

On the other hand, Figure 4a and 4b is a case in which both the left and right cover (13,14) is opened by opening, as in the double-acting hydraulic cylinder (5) shown in Figure 1, mounted on the self-employment device that must use both left and right pedals It can be used. That is, as shown in FIG. 2, the left cover 13 is caught in the left cover 13 as the left cover 13 is lifted upward with the center of the left boss 11 in a closed state as shown in FIG. 2. The right cover 14 can also be lifted and opened at the same time by the jaws 15a and 15b.

On the other hand, when closing the left and right cover (13,14) to the initial position, by rotating the right cover 14 to the initial position with the right boss 12 as the center axis by the locking step 15 shown in FIG. The left cover 13 is also closed at the same time by the one-touch method.

According to the preferred embodiment as described above has the following advantages.

Mechanical and hydraulic pedals that control work in one direction and work devices in both directions can be replaced according to the working conditions. It can prevent.

Embodiments as described above are intended to be described in detail so that those skilled in the art of heavy construction equipment can be easily carried out, and thus the technical details within the scope and spirit of the present invention. Some variations may be possible.

Claims (1)

For hydraulic and mechanical pedals with bidirectionally operated and rotating cover: A left boss 11 and a right boss 12 rotatably separated from the pedal 10 upwardly; A left cover 13 and a right cover 14 which are integrally fixed to the left boss 11 and the right boss 12 and rotated independently of the pedal 10; And It is formed on each side of the left and right bosses (11, 12) to face each other, it is characterized in that it has a locking jaw (15) for opening or covering the pedal (10) by constraining the opposite cover to rotate at the same time when rotating the one side cover A pedal having a removable cover.