JPH0724441Y2 - Footrest equipment for construction machinery - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention mainly relates to a footrest device provided in front of a driver's seat of a construction machine such as a hydraulic excavator.

2. Description of the Related Art FIG. 7 is a perspective view showing the inside of a cab for a hydraulic excavator. In the figure, 1 is a floor board of a driver's cab, 2 is a driver's seat, 3
Is a pair of traveling levers, 4 is a traveling pedal fixedly attached to the traveling lever 3, and 5 is a pair of left and right footrests. FIG. 8 is a partially cutaway front view seen from A in FIG. 7. In the figure, 6 is a support mechanism for the traveling lever 3 and 7
Is a bracket member of the support mechanism 6, 8 is a bounce member under the traveling lever 3, 9 is a pin, 10 is a bolt member for fixing the pin 9,
Reference numeral 11 denotes a tread member for the footrest 5. FIG. 9 is a side view of the footrest 5 as seen from B of FIG.

The footrest 5 of the prior art is provided separately on the left and right sides and fixed on the floor plate 1 as shown in FIGS. 7 and 8. Therefore, when the driver sits in the driver's seat 2 for work or traveling, his / her feet are placed on the footrest 5 so as to support the body in response to the swing and vibration of the hydraulic excavator.

Problems to be Solved by the Invention During work operation or traveling operation of a construction machine, a driver puts his / her foot on a footrest to support the body. However, in the conventional footrest device, the position of the tread member of the footrest and the inclination angle α _o thereof (see FIG. 9) are fixed. However, there was a considerable difference in the physique of the driver, and there was also a difference in the length of the legs. Therefore, when the driver puts his / her foot on the footrest, the foot may not be sufficiently brought into contact with the tread member. Therefore, for example, there is a risk that the driver may lose the balance of his / her body when he / she runs on a sloping ground or a sudden swing of the construction machine occurs, and he / she cancels the driving operation.

Further, since the footrest of the prior art is fixedly attached to the mounting hole formed on the floor plate of the driver's cab, it hinders the cleaning of the floor plate of the driver's cab and the appearance is not good.

An object of the present invention is to solve the above problems and to provide a footrest device in which a footrest is provided on a support mechanism of a traveling lever and an inclination angle of a tread member for a rest is adjusted and attached.

Means for Solving the Problems Means of the present invention taken to solve the above problems are (1) a. An arm to which a tread member for a rest is fixed is extended toward the tip of the pin of the traveling lever support mechanism in front of the driver's seat, in the axially outward direction of the pin. The arm is attached to the pin so that the arm can be pivotally adjusted in the front-back direction.

(2) b. For the bracket member for the support mechanism that rotatably supports the traveling lever in front of the driver's seat via the pin,
Extend the arm to which the tread member for the rest is fixed, and The arm is attached to the bracket member so as to be pivotally adjustable in the front-rear direction.

(3) B. An extension shaft is provided by protruding both ends of the pin of the traveling lever support mechanism in front of the driver's seat, and an arm having a tread member for a rest fixed thereto is extended to the extension shaft. The arm is attached so that the arm can be pivotally adjusted with respect to the extension shaft and the position of the arm can be adjusted in the axial direction of the extension shaft.

Action (1) a. Since the arm to which the tread member for the rest is fixed is attached to the support mechanism, the footrest device is not provided on the floor plate of the cab.

B. Since the arm is attached to the pin tip portion of the support mechanism so as to be pivotally adjustable in the front-rear direction, the rest tread member can be set to a desired front-rear inclination angle.

(2) b. Since the arm to which the rest tread member is fixed is attached to the support mechanism bracket member so as to be pivotally adjustable, the rest tread member can be set to a desired front-back inclination angle.

(3) B. Since the arm to which the rest tread member is fixed is attached so as to be able to adjust the rotation in the front-rear direction and the position in the left-right direction with respect to the extension shafts at both ends of the pin of the support mechanism, the tread member for the rest can be moved in a desired front-back direction. Directional tilt angle and left / right direction can be set.

Embodiment Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

(1) FIG. 1 is a partially cutaway front view showing a footrest device 12 according to a first embodiment of the present invention. In the figure, the same reference numerals are given to those using the same constituent elements as those in the prior art. Reference numeral 13 is a rest tread member of the footrest device 12, 14 is an arm, 15 is a mounting boss for the footrest device 12, 16 is a tightening bolt, 6A is a support mechanism for the traveling lever 3, and 17 is a pin. FIG. 2 is a sectional view taken along the line CC of FIG. In the figure, 18 is a split portion of the mounting boss 15.

Next, the construction of the footrest device 12 of the first embodiment will be described with reference to FIGS. 1 and 2. Support mechanism 6A pin
The arm 14 to which the rest tread member 13 is fixed is extended in the axial direction of the pin 17 with respect to the tip end of the pin 17, and the mounting boss 15 fixed to the arm 14 is attached to the pin 17 in the front-rear direction. It was attached and configured so that the rotation could be adjusted. Instead of providing the split portion 18 on the mounting boss 15, the fitting between the boss member and the pin tip may be a spline method, a serration method (not shown), or the like that allows adjustment of the mounting angle.

Next, the function and function of the footrest device 12 according to the present invention will be described. Arm with tread member 13 for rest fixed
Since I attached 14 to the tip of pin 17 of support mechanism 6A,
The footrest device is no longer provided on the cab floor plate 1. It does not interfere with the cleaning of the floorboard 1,
And the appearance has improved. Further, since the mounting boss 15 fixed to the arm 14 is provided with the split portion 18, the mounting angle of the mounting boss 15 in the front-rear direction can be adjusted by loosening the tightening bolt 16. That is, the inclination angle α ₁ of the tread member 13 for rest in FIG. 2 can be adjusted. Since the upper surface of the rest tread member 13 is formed in a side-view shape as shown in FIG. 2, the rest tread member 13 is fixed to a desired position angle by tightening the tightening bolt 16. To do. Thereby, the driver can obtain a desired footrest in consideration of his / her leg length and the like.

(2) FIG. 3 is a partially cutaway front view showing the footrest device 19 according to the second embodiment of the present invention. In the figure, 13 'is a tread member for rest, 14' is an arm, 20 is a flange portion integrally fixed to the arm 14 ', 21 is a support mechanism, 22 is a bracket member of the support mechanism 21,
23 is a tightening bolt and 17 'is a pin. FIG. 4 is a side view seen from DD in FIG. In the figure, 24 is a bolt hole formed in the flange 20. Bolt hole 24
Is provided at a position having a radius R from the axis of the pin 17 '. FIG. 5 is a side view as seen from EE in FIG.
In the figure, reference numeral 25 denotes a plurality of screw hole portions formed in the outer side surface portion of the bracket member 22. The plurality of screw hole portions 25,
It is provided at a position having a radius R from the axis of the pin 17 '. As the correspondence relationship between the bolt hole portion and the screw hole portion, one screw hole portion may be formed on the bracket member 22 side, and a plurality of bolt hole portions may be formed on the flange portion 20. Also, the plurality of bolt hole portions may be formed in one elongated hole portion.

In the footrest device 19, the bracket member of the support mechanism 21
22 An arm 14 'to which a tread member 13' for a rest is fixed is extended in the axial direction of the pin 17 'with respect to the outer side surface, and the arm 1'
A flange portion 20 fixed to 4'is attached and configured so that it can be pivotally adjusted in the front-back direction. Footrest device
The function and function of 19 are the same as those of the footrest device 12 in claim 1.

(3) FIG. 6 is a partially cutaway front view showing the footrest device 26 according to the third embodiment of the present invention. In the figure, the same reference numerals are given to those using the same constituent elements as the footrest device 12 in claim 1.
6B is a support mechanism for the traveling lever 3, 27 is a pin, and 28 is an extension shaft portion at both ends of the pin 27.

Next, the construction of the footrest device 26 of the third embodiment will be described with reference to FIG. Both ends of the pin 27 of the support mechanism 6B for the traveling lever 3 are projected to the outside to provide an extension shaft portion 28, and an arm 14 to which the rest tread member 13 is fixed is extended to the extension shaft portion 28, and the arm 14 is extended. The arm 14 is attached so that it can be rotated in the front-rear direction with respect to the shaft 28 and the position of the arm 14 can be adjusted in the axial direction of the extension shaft 28.

Next, the function and function of the footrest device 26 according to the present invention will be described. Arm with tread member 13 for rest fixed
Since the 14 is attached to the extension shafts 28 at both ends of the pin 27 of the support mechanism 6B so as to be able to adjust the rotation in the front-rear direction and adjust the position in the left-right direction, the tread member 13 for the rest is provided with a desired front-rear inclination angle. Can be set to the left and right position. The maximum adjustment amount in the left-right direction of the rest tread member 13 is the dimension S.

EFFECTS OF THE INVENTION In the footrest device according to the present invention, an arm having a tread member for a rest fixedly extends in the axial direction of the pin of the support mechanism for the traveling lever in front of the driver's seat.
The arm is attached to the support mechanism so that the arm can be adjusted to rotate in the front-rear direction or move in the left-right direction. As a result, the driver can adjust and fix the tread member for the rest at an optimal position and angle that suits his or her physique, so that the driver can securely support the body when the construction machine suddenly rocks or runs on a slope. You can

Further, since the footrest device is provided on the support mechanism for the traveling lever, it does not hinder the cleaning of the floor plate of the cab and the appearance is improved.

Therefore, in the construction machine provided with the footrest device according to the present invention, it is possible to improve the workability and safety during the driving operation and enhance the aesthetics of the cab.

[Brief description of drawings]

1 is a front view showing a footrest device according to an embodiment of claim 1, FIG. 2 is a sectional view taken along the line CC of FIG. 1, and FIG.
FIG. 4 is a front view showing a footrest device according to an embodiment of claim 2, FIG. 4 is a side view seen from DD of FIG. 3, and FIG. 5 is a side view seen from EE of FIG. FIG. 6 is a front view showing a footrest device according to an embodiment of claim 3, FIG. 7 is a perspective view showing the inside of a cab for a hydraulic excavator, and FIG. 8 is a part seen from A of FIG. FIG. 9 is a side view of the footrest seen from B in FIG. 1 …… Floor plate 3 …… Travel lever 5 …… Foot rest 6,6A, 6B, 21 …… Support mechanism 7,22 …… Bracket member 9,17,17 ′, 27 …… Pin 11,13,13 ′ …… Tread member for rest 12,19,26 …… Foot rest device 14,14 ′ …… Arm 15 …… Mounting boss 16,23 …… Tightening bolt 20 …… Flange part 28 …… Extension shaft part

Claims (3)

[Scope of utility model registration request] 1. A footrest device which is provided in front of a driver's seat for a construction machine so that a driver's foot can come into contact with the footrest device. A footrest device for a construction machine, comprising: an arm having a tread member for rest fixedly extending in an axially outward direction, and the arm being attached to the pin so as to be pivotally adjustable in a front-rear direction. 2. A footrest device which is provided in front of a driver's seat for a construction machine and which abuts a driver's foot, wherein a traveling lever in front of the driver's seat is rotatably supported via a pin. A footrest device for a construction machine, wherein an arm having a tread member for a rest fixed to a bracket member for a support mechanism is extended, and the arm is attached to the bracket member so that the arm can be rotationally adjusted in the front-rear direction. . 3. A footrest device which is provided in front of a driver's seat for a construction machine so that a driver's foot can be brought into contact with the driver's seat. A shaft portion is provided, and an arm having a tread member for a rest fixed to the extension shaft portion is extended. The arm can be pivotally adjusted in the front-rear direction with respect to the extension shaft portion. A footrest device for construction machinery, which is mounted so that its position can be adjusted in any direction.