JPH0137940Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a mat for driving steps of a working vehicle.

Conventionally, when the above-mentioned mat was simply formed into a flat plate shape, the soundproofing and vibration-proofing effects were low. The protrusions supporting the plate-like part are distributed throughout the plate so that a space is formed between the step and the operation step, and the flexible structure of the protrusions and the air layer between the parts provide sound insulation Matsuto was known for his high anti-vibration performance.

However, in the above conventional system, when the operator is seated in the driver's seat and simply puts his or her feet on the mat, that is, when the pilot's weight is not significantly applied to the mat, the aircraft cannot move through the steps. Since it is easy to feel the vibrations in the feet, it would have been desirable to have better soundproofing and anti-vibration effects.

The present invention was developed in view of the above-mentioned circumstances, and while improving the soundproofing and vibration-proofing effects of the mat as a whole, it also improves the soundproofing and vibration-proofing effects of the mat in particular when the seat is seated, where vibrations are easily felt. The purpose is to provide a mat for operating steps for workers who are

In order to achieve the above object, the mat for the driving step of a work vehicle according to the present invention has a projection on the plate-shaped part that supports the plate-shaped part so that a gap is formed between the lower surface of the plate-shaped part and the driving step. A mat for operating steps for a worker, in which the protrusions are distributed throughout and attached, and the protrusions are configured in a lattice shape in which a plurality of vertical bars and a plurality of horizontal bars intersect in plan view. In addition, the protrusion at a position corresponding to the part where the operator rests his/her feet while seated in the driver's seat has a notch in the vertical bar or the horizontal bar part that is opened downward when viewed from the side. The characteristic configuration is that it is provided and configured.

The functions and effects of this characteristic configuration are as follows.

In other words, the soundproofing and vibrationproofing effect is achieved by the air layer between the holes formed by the lattice-shaped protrusions provided on the lower surface of the plate-shaped part in plan view, and the soundproofing and vibrationproofing effect is achieved by the material of the protrusions. Combined, vibration and noise can be greatly suppressed. The protrusion corresponding to the part on which the operator rests his/her feet while seated in the driver's seat is provided with a notch in the vertical or horizontal part of the grid that is open downward when viewed from the side. Because it is configured as follows,
The contact area between the step and the protrusion is small, reducing the area through which vibrations from the step are transmitted.
By supporting the foot resting only on the protrusions that are in contact with the step, the protrusions that can transmit vibrations to the foot become more flexible, improving the cushioning function and improving soundproofing and anti-vibration effects. This has further improved ride comfort, especially in the seated position where vibrations are easily felt, resulting in a significant improvement in comfort.

Next, embodiments of the present invention will be described in detail based on illustrative drawings.

As shown in FIG. 1, a swivel base 2 is attached to a machine base equipped with a pair of left and right crawler traveling devices 1 so as to be freely driven and swiveling around the vertical axis P, and the swivel base 2 is
In addition to providing a driving cabin 3 and a rear driving unit 4,
Backhoe device 5 that can bend and extend and swing up and down freely
is attached to the front end of the swivel base 2 via a swing bracket 6 which is attached to the swivel base 2 so as to be able to swing left and right, thereby constructing an excavating work vehicle.

As shown in FIGS. 2 to 4, the mat 8 installed on the operation step 7 in the cabin 3 is provided with notches 10a for inserting various operation levers 9 installed upright on the step 7. A slit 11 having an inverted triangular cross section is formed in a lattice shape in plan view on the upper surface of the plate portion 8a excluding the peripheral edge 8b of the formed rubber plate mat 8, covering the entire upper surface of the plate portion 8a. In addition to improving the anti-slip effect of the mat 8, the plate part 8a is formed so that the upper surface thereof is flat, with a gap 12 being formed between the lower surface of the plate part 8a and the upper surface of the step 7. In addition, the projections 13 supported on the step 7 are formed in a lattice shape in which a plurality of vertical bars and a plurality of horizontal bars intersect with each other in a plan view over the entire lower surface of the plate-like portion 8a. Due to the additive effect of the soundproofing and vibrationproofing effect due to the air layer in the space 12 formed in the cell-shaped space of the step 7 and the soundproofing and vibrationproofing effect due to the material of the mat 8, the inside of the cabin 3 from below the step 7 is It is configured to effectively suppress transmitted body vibration and noise and improve the comfort inside the cabin 3.

A protrusion 13 is located at a portion of the plate-like portion 8a where an operator seated on the driver's seat 3a rests his or her feet.
As shown in FIGS. 3 and 4, a protrusion 13 forming one vertical bar attached in the front-rear direction;
Projections 1 forming a plurality of horizontal bars attached in the left and right direction
3. At the intersection with 3..., a notch 13a having a gentle mountain shape in side view is formed in the horizontal bar, with the lower part of the horizontal bar opening away from the vertical bar. , those chevron-shaped notches 13a
Due to this action, the footrest portion of the plate-like portion 8a is provided with a cushioning function that is softer than other portions, thereby further improving riding comfort in the seated state.

Furthermore, the specific peripheral shape of the mat 8 can be improved in various ways, and its material and thickness dimensions can also be changed as appropriate.

The present invention is directed to mats for driving steps in various work vehicles equipped with various types of driving parts, such as a cabin type and an open type.

Incidentally, although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of the drawing]

The drawings show an embodiment of the mat for driving steps of a working vehicle according to the present invention, and FIG. 1 is an overall side view, and FIG.
The figure is a plan view showing the pine laying part of the driving section.
The figure is a partially enlarged perspective view of the mat, and FIG. 4 is an enlarged sectional view showing the state in which the mat is laid. 7... Operating step, 8a... Plate-shaped portion, 12...
...= Between, 13...Protrusion, 3a...Driver's seat, 13
a... Notch.

Claims (1)

[Scope of utility model registration request] A driving step for a working vehicle in which projections 13 supporting the plate-like part 8a are distributed throughout the plate-like part 8a so that a gap 12 is formed between the lower surface of the plate-like part 8a and the driving step 7. The protrusion 13 is configured in a lattice shape in which a plurality of vertical bars and a plurality of horizontal bars intersect in a plan view, and the protrusion 13 is configured so that the driver seated in the driver's seat 3a can place his or her feet on the mat. The process is characterized in that the protrusion 13 at a position corresponding to the placement part is configured by providing a notch 13a in the vertical bar or the horizontal bar part in a shape that is opened downward when viewed from the side. Mats for car driving steps.