KR20060060068A - Pedal cover of construction machine - Google Patents

Abstract

It is to provide a pedal cover of a construction machine that can prevent foreign matter from entering between the operation pedal and the floor of the present invention.

The pedal cover main body 29 which consists of an elastic rubber material as a whole, and fits into the front end of the pedal main body 14 by the recessed part 29a, and covers the upper surface of the pedal main body 14, and this pedal cover main body A base 30 for installing the 29 on the bottom 11, a pleat box 31 provided between the pedal cover main body 29 and the base 30, and a side wall of the base 30, In the first cover portion 32 provided with the double bed 34 in which the portion around the mounting hole 36 of the floor mat 35 is polymerized on the upper side, and constituted by the base 30 and the corrugated box portion 31. By covering the first space 40 to be fitted to the front end side and the bottom 11 of the pedal body 14, the second cover portion 33 is formed on the rear side of the base 30 to form the pedal body 14 The second space 41 fitted to the rear end side and the bottom 11 was covered.

Pedal body, pedal cover body, base, corrugated box part, floor mat, mounting hole

Description

Pedal Cover for Construction Machinery {PEDAL COVER OF CONSTRUCTION MACHINE}

1 is a side view showing a wheel loader in which an embodiment of a pedal cover of a construction machine of the present invention is employed.

Fig. 2 is a plan view showing a driver's seat and its surroundings of the wheel loader shown in Fig. 1;

Fig. 3 is a side view showing the configuration of the accelerator pedal shown in Fig. 2;

4 is a perspective view showing one embodiment of a pedal cover of the construction machine of the present invention.

5 is a view of the arrow A in FIG. 4;

6 is a cross-sectional view taken along line B-B in FIG.

Fig. 7 is a sectional view showing coupling means other than the coupling means shown in Figs.

<Explanation of symbols for the main parts of the drawings>

1: wheel loader

2: rear body

3: body front

4: Wheel

5: front work machine

6: bucket                 

7: lift arm

8: rotating mechanism part

9: driver's seat

10: canopy

11: floor

12: accelerator pedal (operation pedal)

13: brake pedal (operation pedal)

14: pedal body

15: pedal rotation support

16: link mechanism

17: rod-shaped member

18: first rotational connection

19: L-shaped member

20: second rotary connection

21: first support member

22: L-shaped member rotation support

23: cable

24: third rotary connection

25: second support member

26: cable support                 

27: tensile coil spring

28: pedal cover

29: Pedal Cover Body

30: base

31: pleat box

32: first cover part

33: second cover part

34 double bed (combining means)

35: floor mat

36: mounting hole

37: fitting portion (coupling means)

38: fitting part

39: third support member

The present invention relates to a pedal cover of a construction machine attached to an operation pedal such as an accelerator pedal and a brake pedal provided in the construction machine.

Construction machinery, for example wheel loaders or wheel shovels, are provided with an accelerator pedal and a brake pedal which are located on the floor in front of the lower front of the driver's seat and are rotatably supported on the floor.

[Patent Document 1] Japanese Patent Application Laid-Open No. 10-102541 (Fig. 21)

By the way, the construction machine provided with buckets, such as a wheel loader and a wheel shovel, may be used by a quarry. The driver of the wheel loader working in this quarry wears shoes with deep grooves on the back to prevent the feet from slipping. For this reason, when a driver walks a quarry, a stone is often inserted in the groove | channel behind a shoe, and when a driver sits in a driver's seat without fully removing the stone stuck behind a shoe, the stone may fall to the floor in a car. If a stone that falls on the floor moves between the brake pedal and the floor, or between the accelerator pedal and the floor due to swinging or kicking of the driver while driving, the stone is inserted between the brake pedal and the floor or between the accelerator pedal and the floor, and the pedal rotation is prevented. It may be regulated. That is, when the rotation of the brake pedal in the depression direction is restricted, there is a possibility that the brake cannot be operated. When the rotation in the direction in which the accelerator pedal is returned is restricted, the engine rotation may not be lowered.

The present invention has been made in consideration of the above-described circumstances, and an object thereof is to provide a pedal cover of a construction machine that can prevent foreign matter from entering between the operation pedal and the floor.

In order to achieve the above object, a front work machine including a bucket and a bottom of the driver's seat are located on a floor in front of the driver's seat, and are installed on a construction machine rotatably supported by the floor and the operation pedal, and the operation pedal and the floor. And a cover part covering a space fitted to the cover.

The invention according to claim 1 configured as described above can prevent the foreign matter from entering the space fitted to the operation pedal and the floor by the cover part.

In addition, in the invention according to claim 2, in the invention according to claim 1, the operation pedal is an accelerator pedal, and the cover covering a space fitted to the rear end side and the bottom of the accelerator pedal located behind the rotation center. It is characterized by comprising a part.

In the invention according to claim 2 configured as described above, it is possible to prevent foreign matter from entering the space fitted to the rear end side and the bottom of the accelerator pedal by the cover part.

Further, in the invention according to claim 3, in the invention according to claim 1, the operation pedal is a brake pedal, and the cover portion covering a space fitted to the front end side and the bottom of the brake pedal located ahead of the rotation center. It is characterized by including.

In the invention according to claim 3 configured as described above, it is possible to prevent the foreign matter from entering the space fitted to the front end side and the bottom of the brake pedal by the cover part.

Further, the invention according to claim 4 is, in the invention according to claim 1, the first cover part covering the front end side of the operation pedal located in front of the rotation center and the first space fitted to the bottom, and the operation pedal And a second cover part covering a rear end side and a second space fitted to the bottom.                     

In the invention according to claim 4, the first foreign matter enters each of the first space fitted to the front end side and the bottom of the operation pedal and the second space fitted to the rear end side and the bottom of the operation pedal. It can block according to each of a cover part and a 2nd cover part.

In addition, the invention according to claim 5, in the invention according to claim 4, has a concave portion fitted in a state of being in close contact with a front end of the operation pedal, and a pedal cover main body covering the upper and side surfaces of the operation pedal, and the pedal. A first cover having a base for installing a cover body on the bottom, and a crimp box portion provided between the pedal cover body and the base, the first cover covering the first space by the front side of the base and the crimp box portion; And a second cover portion covering the second space on the rear side of the base.

Further, the invention according to claim 6 is the invention according to claim 4 or 5, wherein the construction machine is driven by a wheel, and the operation pedal is operated by the accelerator pedal and the accelerator pedal by the accelerator pedal. And the device is connected by a link mechanism part inserted into the bottom hole located below the second space.

In addition, the invention according to claim 7 is characterized in that the invention according to any one of claims 1 to 6 is provided with a coupling means for engaging the floor mat laid on the floor.

The invention according to claim 8 is the invention according to any one of claims 1 to 7, wherein the construction machine is a wheel loader.

EMBODIMENT OF THE INVENTION Below, one Embodiment of the pedal cover of the construction machine of this invention is described.

First, a construction machine employing the present embodiment, for example, a wheel loader, will be described with reference to Figs.

Fig. 1 is a side view showing a wheel loader to which the present embodiment is employed, Fig. 2 is a plan view showing a driver's seat and its surroundings of Fig. 1, and Fig. 3 shows the structure of an accelerator pedal shown in Fig. 2. It is a side view. 2, the upper part corresponds to the front side of the wheel loader 1. As shown in FIG.

The wheel loader which employ | adopts this embodiment is the wheel loader 1 shown in FIG. 1, for example. In this wheel loader 1, the vehicle body rear part 2 and the vehicle body front part 3 can be bent by the rotating mechanism part 8 in the left-right direction (direction orthogonal to the surface of FIG. 1). In addition, a driver's seat 9 and a canopy 10 covering the upper side of the driver's seat 9 are provided at an upper portion of the vehicle body rear part 2, and wheels 4 are provided at both sides of the vehicle body rear part 2. It is.

In addition, a bucket 6 and a lift arm having one end rotatably connected to the bucket 6 and the other end rotatably supported by the vehicle front part 3 in the vertical direction (to the vehicle front part 3) The front work machine 5 provided with 7) is provided.

As shown in Fig. 2, an operation pedal, that is, a brake pedal 13 and an accelerator pedal 12, which are rotatably supported with respect to the floor 11, is provided at the lower front of the driver's seat 9.

As shown in Fig. 3, the accelerator pedal 12 is a pedal body 14 made of a rectangular plate body, and a pedal rotation for supporting the pedal body 14 so as to be rotatable in the vertical direction with respect to the bottom 11. The support part 15 is provided. This pedal rotation support part 15 is fixed to the bottom 11 by being located on both sides of the rotation shaft 14a which protrudes in each of the both sides of the pedal main body 14, and the pedal main body 14, respectively, The rotating shaft 14a is provided with the support stand 14b rotatably inserted.

Moreover, below the pedal main body 14, the link mechanism part 16 which transmits rotation of the pedal main body 14 to a governor apparatus not shown is provided. The link mechanism 16 includes a rod-shaped member 17, an L-shaped member 19, and a cable 23.

The rod-shaped member 17 is rotatably supported by the first rotary connecting portion 18 provided at one end thereof on the lower surface of the pedal body 14 in a state inserted into the hole 11a provided in the bottom 11. The other end of the rod-shaped member 17 is rotatably supported at one end of the L-shaped member 19 by the second rotation connecting portion 20. In addition, a first support member 21 is provided on the bottom surface of the bottom 11, and the bent portion of the L-shaped member 19 is rotatable to the first support member 21 via the L-shaped member rotation support 22. Is supported. In addition, one end of the cable 25 is rotatably supported at the other end of the L-shaped member 19 by the third rotation connecting portion 24. Although the other end of the cable 23 is not shown, it is connected to the governor apparatus. In addition, a second support member 25 is provided on the bottom surface of the bottom 11, and the cable 23 is axially directed to the second support member 25 through the cable support portion 26 (left and right directions in FIG. 3). It is supported so that displacement is possible.

In addition, a third support member 39 is provided on the bottom surface of the bottom 11, one end of the tension coil spring 27 is attached to the third support member 39, and the other end thereof is the L-shaped member 19. ), And one end of the cable 23 is pushed in the front direction (the direction from the right side to the left side in FIG. 3) by the tension coil spring 27. As shown in FIG. That is, the pressing force with respect to the L-shaped member 19 is transmitted to the pedal main body 14 via the rod-shaped member 17, and the pedal main body 14 is pushed upwards to return automatically.

Next, Figs. 4 to 6 will be described with reference to the present embodiment.

4 is a perspective view showing the present embodiment, FIG. 5 is an arrow A diagram of FIG. 4, and FIG. 6 is a sectional view B-B of FIG.

This embodiment is the pedal cover 28 shown to FIG. 4 thru | or 6, For example, it is attached to the accelerator pedal 12 mentioned above.

The pedal cover 28 is made of a rubber material having elasticity as a whole, and has a concave portion 29a that fits in a state of being in close contact with the front end portion of the pedal body 14, and covers the entire upper surface of the pedal body 14. A pedal cover body 29 to be covered, a base 30 for installing the pedal cover body 29 on the floor 11, and a pleat box portion provided between the pedal cover body 29 and the base 30 ( 31 and a coupling means provided on the side wall of the base 30 and engaged with the floor mat 35.

The base 30 and the corrugation box portion 31 cover the front end side of the pedal body 14 located ahead of the rotation center (left side in FIG. 6) and the first space 40 fitted to the bottom 11. The 1st cover part 32 is comprised.

In addition, on the rear side of the base 30, a second cover portion 33 covering the rear end side of the pedal body 14 positioned behind the center of the rotation shaft and the second space 41 fitted to the bottom 11. To form.

In addition, the shape and dimension of the cross section of the base 30 are formed so that the periphery of the base 30 may be in close contact with the edge of the mounting hole 36 when the base 30 is inserted into the mounting hole 36. In addition, the mounting hole 36 is a hole for inserting the accelerator pedal 12 when the floor mat 35 is placed on the bottom 11, and has a rectangular shape corresponding to that the pedal body 14 is rectangular. .

Further, the joining means consists of a double bed 34 which polymerizes the portion around the mounting hole 36 of the floor mat 35 on the upper side. The bunk bed 34 is composed of a plate-shaped part projecting outward from the entire lower edge of the base 30.

This embodiment operates as follows.

When the driver presses the accelerator pedal 12 over the pedal cover body 29, the pedal cover body 29 and the pedal body 14 rotate downward. At this time, since the elastic force is reduced by the corrugation box part 31, the pedal cover main body 14 rotates below smoothly.

In addition, when the driver removes the pressing force on the pedal body 14 to return the accelerator, the pedal body 14 automatically returns simultaneously with the link mechanism 16 by the tension coil spring 27 of the link mechanism 16. With this, the pedal cover 28 is returned to its original shape by elasticity.

In addition, while the pedal cover main body 29 is rotated in this way, the periphery of the base 30 is in contact with the edge of the mounting hole 36, thereby paralleling the bottom 11 of the pedal cover 28. The deviation in the direction is regulated. Moreover, since the floor mat 35 is superposed | polymerized on the double bed 34, the shift | offset | difference to the up-down direction of the pedal cover 28 is also regulated.

According to this embodiment, the following effects can be obtained.

The first space 40 fitted to the front end side and the bottom 11 of the pedal body 14 is covered by the first cover part 32 constituted by the base 30 and the pleat box part 31, and the pedal Since the second space 41 fitted to the rear end side and the bottom 11 of the main body 14 is covered by the second cover portion 33 formed to the rear side of the base 30, the first space 40 is provided. And invasion of foreign matters into the second space 41 can be reliably prevented, thereby preventing foreign matters from being caught between the pedal body 14 and the bottom 11. As a result, since the rotation of the pedal main body 14 can be prevented from being restricted by foreign matter, the reliability of the accelerator pedal 12 of the wheel loader 1 can be improved.

In addition, although the double bed 34 was mentioned as the coupling means in this embodiment, this invention is not limited to this. That is, the coupling means should be able to fix the pedal cover 28 to the floor 11 using the floor mat 35, so that the side wall of the base 30 is floored, for example, as shown in FIG. The fitting part 37 fitted to the mat 35 may be sufficient. The fitting portion 37 is provided on the entire lower portion of the side wall of the base 30, and has a convex portion 37a projecting inward of the base 30, and the upper wall of the convex portion 37a and the base 30. And a concave portion 37b surrounded by the side wall. Moreover, the fitting receiving part 38 which fits the fitting part 37 is provided in the edge of the mounting hole 36 of the floor mat 35. The fitting receiving portion 38 includes a convex portion 38a that matches the recessed portion 37b of the fitting portion 37, and a recessed portion 38b that matches the convex portion 37a of the fitting portion 37. )

In addition, although this embodiment is the example which employ | adopted the pedal cover 28 in the wheel loader 1 provided with the canopy 10 by exposing the driver's seat 9, this invention is not limited to this, The wheel provided with a cab is not limited to this. You may employ | adopt for a loader. In this case, since the hole 11a of the bottom 11 is blocked by the pedal cover 28, invasion of dust from the hole 11a into the cab can be prevented.

In addition, although the accelerator pedal 12 connected to the governor apparatus via the link mechanism part 16 was mentioned as the operation pedal which mounts the pedal cover 28 in this embodiment, this invention is not limited to this, but brake pedal ( 13) may be attached to the operation pedal for operating the pusher of the pilot valve. In other words, the operation pedal to which the pedal cover 28 is mounted may be one in which the pedal body is rotatably supported on the floor.

In addition, although the wheel loader 1 was mentioned as an example of the construction machine which employ | adopts the pedal cover 28 in this embodiment, this invention is not limited to this, The site | part which is easy to bring in stones on the floor around a driver's seat, for example A construction machine used in a quarry may be used, and therefore, a wheel shovel or a crawler shovel may be used.

In addition, in this embodiment, although the pedal cover 28 and the floor mat 35 were mentioned separately, this invention is not limited to this, You may form a pedal cover and a floor mat integrally.

In addition, although this embodiment was formed in which the pedal cover 28 covers the 1st space 40 and the 2nd space 41, this invention is not limited to this. For example, in the case of a pedal cover mounted on an accelerator pedal, since the rotation in the direction in which the accelerator pedal is restricted is particularly dangerous, the bottom cover 11 is formed to cover only the second space 41. You may block 11a by another means. Moreover, in the case of the pedal cover attached to a brake pedal, since the rotation of a brake pedal in the depression direction is especially dangerous, you may form so that only the 1st space 40 may be covered.

As described above, according to the invention according to claim 1, in a construction machine having a bucket, that is, a construction machine used in a site where it is easy to bring foreign substances such as stones around the driver's seat, Since foreign matters can be prevented from entering the space, it is possible to prevent foreign matters from being caught between the operation pedal and the floor. As a result, the rotation of the operation pedal can be prevented from being restricted by foreign matter, and the reliability of the construction machine accelerator pedal can be improved.

In addition, according to the invention of claim 2, since foreign matters can be prevented from entering between the rear end side and the bottom of the accelerator pedal, it is possible to prevent the foreign matter from being caught between the rear end side and the bottom of the accelerator pedal. As a result, the rotation in the direction in which the accelerator pedal is returned by the foreign matter can be prevented, and the reliability of the construction machine accelerator pedal can be improved.                     

Further, according to the invention of claim 3, since foreign matters can be prevented from entering between the front end side and the bottom of the brake pedal, it is possible to prevent the foreign matter from being caught between the front end side and the bottom of the brake pedal. As a result, it is possible to prevent the foreign matter from being restricted in the turning direction of the brake pedal, thereby improving the reliability of the brake pedal of the construction machine.

Further, according to the invention according to claim 4, since foreign matters can be prevented from entering between the front end side and the bottom of the operation pedal, and both the rear end side and the bottom of the operation pedal, the operation pedal is directed into the depression direction. Both the restriction by foreign matter of rotation and the restriction by foreign matter of rotation in the direction in which the operation pedal is returned can be prevented.

Claims (8)

A front work machine including a bucket, an operation pedal positioned on a floor in front of a lower portion of the driver's seat and rotatably supported on the floor, and a cover part installed on a construction machine including the cover and covering a space fitted to the operation pedal and the floor. Pedal cover of the construction machine characterized in that it comprises. 2. The construction machine according to claim 1, wherein the operation pedal is an accelerator pedal and has a cover portion covering a rear end side of the accelerator pedal located behind the rotation center and a space fitted to the floor. Pedal cover. 2. The pedal of a construction machine according to claim 1, wherein the operation pedal is a brake pedal and has a cover part covering a front end side of the brake pedal located ahead of the rotation center and a space fitted to the floor. cover. The first cover part which covers the front end side of the said operation pedal located in front of the rotation center, and the 1st space fitted to the bottom, and the back part of the said operation pedal, and the said 1st part fitted to the bottom. The pedal cover of the construction machine characterized by including a 2nd cover part which covers 2 spaces. 5. The pedal cover main body according to claim 4, further comprising a concave portion fitted in a state of being in close contact with a front end portion of the operation pedal, wherein the pedal cover body covers an upper surface of the operation pedal; A base for installing the pedal cover body on the floor; And a pleat box portion provided between the pedal cover body and the base, A first cover part covering the first space by the front side of the base and the pleat box part, A pedal cover of a construction machine, characterized by forming a second cover portion covering the second space on the rear side of the base. The said construction machine runs by a wheel, The said operation pedal is an accelerator pedal, The governor apparatus operated by the said accelerator pedal and the said accelerator pedal is the lower part of the said 2nd space. The pedal cover of the construction machine, characterized in that connected by the link mechanism inserted into the hole of the bottom located. The pedal cover of a construction machine according to any one of claims 1 to 5, further comprising engaging means for engaging a floor mat laid on the floor. The pedal cover of a construction machine according to any one of claims 1 to 6, wherein the construction machine is a wheel loader.

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