Floor mat and working machine

Patent metadata

Field	Value
Publication number	US-11230212-B2
Application number	US-201816230846-A
Country	US
Kind code	B2
Filing date	Dec 21, 2018
Priority date	Oct 26, 2016
Publication date	Jan 25, 2022
Grant date	Jan 25, 2022

Abstract

A floor mat arranged in a working machine includes a floor portion, a wall portion arranged on a circumferential portion of the floor portion, and an opening portion arranged on a part of a connecting portion of the wall portion, the connecting portion connecting to the floor portion. The floor mat includes a mat main body arranged on the floor portion, a covering portion configured to cover the opening portion, and an connecting portion configured to connect the covering portion flexibly to a circumferential portion of the mat main body.

First claim

What is claimed is:

1. A floor mat arranged in a working machine including: a floor portion; a wall portion arranged on a circumferential portion of the floor portion; and an opening portion arranged on a part of a first connecting portion connecting the wall portion to the floor portion, characterized in that
the floor mat comprises:
a mat main body arranged on the floor portion;
a covering portion configured to cover the opening portion; and
a second connecting portion configured to connect the covering portion flexibly to a circumferential portion of the mat main body,
wherein the covering portion includes:
a first cover wall portion having:
a side portion connected to the second connecting portion; and
a first opposite side portion and a second opposite side portion each extending from end portions of the side portion and being opposite to each other;

a second cover wall portion extending downward from the first opposite side portion; and
a third cover wall portion extending downward from the second opposite side portion,

and wherein a length of the second cover wall portion from a portion connecting to the first opposite side portion to a lower end portion of the second cover wall portion is equal to or less than a thickness of the mat main body, and a length of the third cover wall portion from a portion connecting to the second opposite side portion to a lower end portion of the third cover wall portion is equal to or less than the thickness of the mat main body.

2. The floor mat according to claim 1 ,
wherein a thickness of the second connecting portion is less than a thickness of the circumferential portion of the mat main body and a thickness of the first cover wall portion.

3. The floor mat according to claim 1 , comprising
a coupling wall portion extending downward from the side portion of the first cover wall portion and coupling the second cover wall portion to the third cover wall portion along the side portion.

4. The floor mat according to claim 3 , comprising
a reinforcement rib wall arranged between the second cover wall portion and the third cover wall portion, the reinforcement rib wall including:
a first connecting edge connecting to the first cover wall portion; and
a second connecting edge connecting to the coupling wall portion.

5. The floor mat according to claim 1 ,
wherein a thickness of the second cover wall portion and a thickness of the third cover wall portion are larger than a thickness of the first cover wall portion.

6. A working machine comprising
the floor mat according to any one of claims 1 to 5 ,
wherein the covering portion is bent upward at the second connecting portion with respect to the mat main body, and thereby covering the opening portion.

7. A working machine according to claim 6 , comprising:
a cabin having the floor portion and the wall portion; and
a front mounting member supporting a front portion of the cabin,
wherein the cabin includes:
a first front pillar portion; and
a second front pillar portion arranged being separated from the first front pillar portion in a machine width direction,

and wherein the wall portion is arranged between the first front pillar portion and a lower end portion of the second front pillar portion, and has the opening portion formed by cutting a portion corresponding to the front mounting member.

8. The working machine according to claim 6 , comprising:
a machine body;
a fuel tank; and
a tank supporting plate arranged on a side portion of the fuel tank and attached to the machine body,
wherein the fuel tank includes:
a tank main body separated above from the machine body and supported by the tank supporting plate; and
an extending portion extending below from another side portion of the tank main body, the other side portion being opposed to the side portion of the fuel tank.

9. The working machine according to claim 6 , comprising:
a cabin;
an air-conditioning unit configured to perform air conditioning of the cabin;
a box main body communicated with the air-conditioning unit, including:
a first plate;
a second plate opposed to the first plate; and
an end opening formed between an end portion of the first plate and another end portion of the second plate;

a cover plate configured to close the end opening of the box main body;
an operation shaft supported rotatably by the first plate and the second plate;
a switching member arranged in the box main body and fixed to the operation shaft, the switching member being configured to be switched by rotation of the operation shaft between a first switching position and a second switching position,
the first switching position allowing the air-conditioning unit to take air present outside the cabin,
the second switching position allowing the air-conditioning unit to take the air present inside the cabin; and

an operation member fixed to an end portion of the operation shaft and configured to rotate the operation shaft,
wherein the cover plate has
a retaining portion opposed to the first plate via at least a part of the operation member, configured to limit movement of the operation member and the operation shaft in an axial direction, to retain the operation shaft from slipping out.

10. The working machine according to claim 6 , comprising:
a traveling frame provided with a top plate having an opening;
a turning base arranged on the traveling frame and configured to be turned about center of the opening; and
a swiveling joint arranged on the center of the opening,
wherein the top plate includes:
a first joint supporting portion protruding toward the center of the opening and supporting the swiveling joint; and
a second joint supporting portion protruding toward the center of the opening from a position opposite to, across the center, the first joint supporting portion and supporting the swiveling joint,

wherein the first joint supporting portion has a first opening portion penetrating from an upper surface to a lower surface of the first joint supporting portion,
and wherein the second joint supporting portion has a second opening portion penetrating from an upper surface to a lower surface of the second joint supporting portion.

11. The working machine according to claim 6 , comprising:
a machine body;
a cabin mounted on the machine body;
an engine arranged at a rear portion of the cabin;
a covering member formed to have a hollow structure and configured to separate a room of the cabin from an engine room housing the engine, the covering member having:
a first wall portion arranged close to the cabin; and
a second wall portion arranged close to the engine and opposed to the first wall portion with a clearance;
a supporting portion supporting the covering member and the rear portion of the cabin arranged on the covering member;
a first rear mount supporting one side of the rear portion of the cabin on the supporting portion; and
a second rear mount supporting the other side of the rear portion of the cabin on the supporting portion,

wherein the covering member includes:
a first installing portion on which the first rear mount is arranged;
a second installing portion on which the second rear mount is arranged; and
at least one reinforcing portion arranged between the first installing portion and the second installing portion and configured to couple the first wall portion to the second wall portion to reinforce the hollow structure.

12. The working machine according to claim 6 , comprising:
a machine body;
a radiator mounted on the machine body;
a heat exchanger arranged opposed to the radiator;
at least one pivotally-supporti

Assignees

• Kubota Kk

Inventors

• Ichihara Akihiro
• Kusama Kenzo
• Inagaki Kasumi
• Konishi Hironobu
• Oi Kazuya
• Umemoto Tadayoshi
• Sakamoto Shota
• Tanaka Shohei
• Aihara Masahiro
• Yamada Yuta
• Takizawa Yoshiki
• Sakuta Takuya
• Saiki Kenichi
• Sakata Tokio

Classifications

• B60N3/04

  of floor mats {or carpets} · CPC title

• B62D55/06

  with tracks without ground wheels · CPC title

• E02F9/0883

  Tanks, e.g. oil tank, urea tank, fuel tank (for vehicles in general B60K15/00) · CPC title

• B62D33/0617

  for tractors or off-the-road vehicles (protective devices for drivers in case of overturning of tractors B60R21/131) · CPC title

• E02F9/02

  Travelling-gear, e.g. associated with slewing gears ({drives therefor E02F9/20}; for motor vehicles B60B, B60G; undercarriages for locomotives or railroad cars B61F; track-laying vehicles B62D; for cranes B66C23/18) · CPC title