JP5554270B2 - Construction machine floor mats and construction machinery - Google Patents

Description

  The present invention relates to a floor mat for a construction machine.

  A floor mat is laid on the floor surface of the cab of a construction machine such as a hydraulic excavator. The floor mat includes, for example, a mat body that horizontally covers the floor surface of the operator's cab, and a grid-like rib wall that protrudes from the back surface (surface on the floor surface side) of the mat body. The rib wall serves to absorb vibrations of the airframe transmitted from the lower part of the cab.

  In recent years, there has been proposed a technique for forming engraved lines on a grid-like rib wall that allows a part of the rib wall to be cut into a predetermined shape (see, for example, Patent Document 1). When laying the floor mat, cut the rib wall part along the route of the wiring arranged on the floor surface of the cab, and pass the wiring between the floor surface of the cab and the mat body. Can do. In addition, it is possible to easily cope with a change in the wiring route.

JP 2007-230441 A

  However, since the conventional floor mat has a lattice-like rib wall, it has high rigidity and is difficult to bend, and workability at the time of laying or removing is poor.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a floor mat for a construction machine having good workability at the time of laying or removal when a grid-like rib wall is provided. To do.

In order to solve the above problems , according to one aspect of the present invention ,
A mat body that covers at least one portion of the floor surface of the cab of the construction machine that is wider than the driver's seat from the periphery of the operating device to the vicinity of the driver's seat , and the floor of the mat body. In a floor mat of a construction machine having a grid-like rib wall protruding from the surface side surface,
A rib groove that linearly crosses the rib wall in the left-right direction is formed on the floor side surface of the rib wall from at least one of the left and right edges of the rib wall to the center of the left and right .
There is provided a floor mat for a construction machine, having a first through hole for penetrating the operating device provided on the floor surface .

  ADVANTAGE OF THE INVENTION According to this invention, when a grid | lattice-like rib wall is provided, the floor mat of the construction machine with the favorable workability | operativity at the time of laying or removal can be provided.

The perspective view of the member provided in the floor surface of the cab where the floor mat by one embodiment of the present invention is laid, and a floor surface Perspective view of floor mat Back view of floor mat Longitudinal sectional view along line AA in FIG. Longitudinal section when folding floor mat Front view of floor mat Front view when folding floor mat Cross section of floor mats laid on the floor of the cab of the construction machine Rib groove side view FIG. 9 shows a modified example of FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In each of the drawings, the same or corresponding components are denoted by the same or corresponding reference numerals, and description thereof will be omitted.

  FIG. 1 is a perspective view of a floor surface of a cab where a floor mat according to an embodiment of the present invention is laid and members provided on the floor surface. In each drawing, the arrow X1 direction indicates the forward direction, the arrow X2 direction indicates the backward direction, the arrow Y1 direction indicates the left direction, the arrow Y2 direction indicates the right direction, the arrow Z1 direction indicates the upward direction, and the arrow Z2 direction indicates the downward direction. Each direction is a direction seen from the driver who sits on the driver's seat in the cab.

  A floor surface 11 of a cab 10 of a construction machine such as a hydraulic excavator or a bulldozer is provided with a driver's seat S on which a driver is seated and an operation device 12 that receives a driving operation by the driver. The operating device 12 includes a pair of left and right operating levers 13L and 13R, a pair of left and right operating pedals 14L and 14R, and the like.

  In addition, the floor 11 of the cab 10 is provided with a pair of left and right footrests 15L and 15R on which the driver rests to rest. The operating device 12 is disposed between the pair of left and right footrests 15L and 15R. Instead of the footrests 15L and 15R, an operation pedal different from the operation pedals 14L and 14R may be provided.

  FIG. 2 is a perspective view of the floor mat. FIG. 3 is a rear view of the floor mat. 4 is a longitudinal sectional view taken along line AA in FIG. FIG. 5 is a longitudinal sectional view when the floor mat is bent. FIG. 6 is a front view of the floor mat. FIG. 7 is a front view when the floor mat is bent. FIG. 8 is a cross-sectional view of a state where a floor mat is laid on the floor surface of the cab of the construction machine.

  The floor mat 20 is laid on the floor surface 11 of the cab 10 and has a mat body 30 that covers at least a part of the floor surface 11 of the cab 10. The floor mat 20 is made of rubber or resin.

  A part of the mat body 30 is reinforced by passing through a gap formed between the lower surface of the door 16 that opens and closes the side surface of the cab 10 and the reinforcing member 17 provided on the floor surface 11 as shown in FIG. Curved downward along the member 17. The sand and mud brought on the mat body 30 can be discharged from the inside of the cab 10 to the outside by opening the door 16.

  The mat body 30 is formed in a sheet shape. As shown in FIG. 4, the mat main body 30 includes a front sheet-like portion 32 and a rear sheet-like portion 33 that are continuous via a step portion 31.

  A surface (a surface opposite to the floor surface 11 side) 30a of the mat body 30 has two sheet surfaces 32a and 33a that are continuous through a step surface 31a. When the floor mat 20 is installed on the floor surface 11, one sheet surface (front sheet-like portion surface) 32a is farther from the floor surface 11 than the other sheet surface (rear sheet-like portion surface) 33a. Placed in.

  As shown in FIGS. 2 and 8, a bank portion 34 is erected on the surface 30 a of the mat body 30. The bank portion 34 continuously extends along the side edge (the right side edge in the present embodiment) opposite to the door 16 (see FIG. 6) of the left and right side edges of the mat body 30, and It extends continuously along the rear edge of the mat body 30. The bank portion 34 plays a role of blocking water when the floor mat 20 is washed with water laid on the floor surface 11.

  As shown in FIG. 3, a support wall 35, a rib wall 36, a front wall 37, a left wall 38, a right wall 39, and a rear wall 40 protrude from the back surface (the floor 11 side surface) 30 b of the mat body 30. It is installed. The support wall 35, the rib wall 36, the front wall 37, the left wall 38, the right wall 39, and the rear wall 40 are each integrally formed with the mat body 30.

  The support wall 35 and the rib wall 36 may be formed continuously or discontinuously. The support wall 35 and the rib wall 36 are surrounded on four sides by a front wall 37, a left wall 38, a right wall 39, and a rear wall 40.

  As shown in FIG. 4, the support wall 35 supports the front sheet-like portion 32, and protrudes from the back surface of the front sheet-like portion 32.

  As shown in FIG. 3, the support wall 35 has a structure in which vertical ribs and horizontal ribs are orthogonal to each other, and a plurality of sets are installed. The height of the support wall 35 is set to be higher than the height of the rib wall 36 by the step of the step portion 31.

  As shown in FIG. 4, the rib wall 36 supports the rear sheet-shaped portion 33, and protrudes from the back surface of the rear sheet-shaped portion 33. As shown in FIG. 8, the rib wall 36 has the same height as the reinforcing member 17 provided on the floor surface 11, and cooperates with the reinforcing member 17 to place the rear sheet-like portion 33 on the floor surface. 11 in parallel.

  The rib wall 36 is formed in a lattice shape. For example, as shown in FIG. 3, the rib wall 36 is orthogonal to a longitudinal rib extending in the front-rear direction and provided in a plurality at equal pitches in the left-right direction; Has a lattice structure. A plurality of vertical ribs and horizontal ribs may be provided at unequal pitches.

  A rib groove 41 that linearly crosses the rib wall 36 in the left-right direction is formed on the back surface 36 b of the rib wall 36 from one of the left and right edges of the rib wall 36 to the center of the left and right. Therefore, the floor mat 20 can be bent along the rib grooves 41 (see FIGS. 4 and 5), and the floor mat 20 can be easily laid and removed. The facility method and removal method of the floor mat 20 will be described later.

  As shown in FIG. 3, the rib groove 41 vertically crosses each vertical rib arranged from one of the left and right edges of the rib wall 36 to the left and right center. In addition, when the vertical rib and the horizontal rib are inclined by 45 ° with respect to the front-rear direction, the rib groove 41 is formed by the vertical rib and horizontal The rib will be crossed diagonally.

  In order to sufficiently enhance the bendability of the floor mat 20, the rib groove 41 linearly penetrates the rib wall 36 in the left-right direction from one of the left and right edges of the rib wall 36 to the other as shown in FIG. 3. It is good.

  As shown in FIGS. 3 and 4, the rib groove 41 may be provided at the center in the front-rear direction of the floor mat 20. The floor mat 20 can be bent at the center in the front-rear direction, and the floor mat 20 can be bent in substantially half.

  FIG. 9 is a side view of the rib groove. As shown in FIG. 9, the groove bottom 41 a of the rib groove 41 may be on the back surface 30 b of the mat body 30. In this case, the bendability of the floor mat 20 is almost determined by the bendability of the mat body 30, so that the influence of the rib wall 36 is eliminated.

  As shown in FIG. 3, the front wall 37 is disposed in front of the support wall 35 and the rib wall 36. The front wall 37 extends along the front edge 30 c of the mat body 30 and is offset rearward from the front edge 30 c of the mat body 30. This is because the front edge of the mat body 30 is placed on the support member 18 (see FIG. 1) provided on the floor surface 11.

  The left wall 38 is disposed to the left of the support wall 35 and the rib wall 36 and extends along the left side edge of the mat body 30. Similarly, the right wall 39 is disposed to the right of the support wall 35 and the rib wall 36 and extends along the right edge of the mat body 30.

  On the back surface of the left wall 38, a groove 42 that crosses the left wall 38 is formed along an extension line of the rib groove 41 in order to improve the bendability of the floor mat 20. A groove 43 that crosses the right wall 39 is formed on the back surface of the right wall 39 along the extended line of the rib groove 41 for the same purpose. Similar to the rib grooves 41, the groove bottoms of the grooves 42 and 43 may be on the back surface 30 b of the mat body 30.

  Of the left wall 38 and the right wall 39, a wall (for example, the left wall 38) installed on the door 16 side is offset inward from the side edge of the mat body 30. As shown in FIG. 8, the side edge of the mat body 30 is placed on the reinforcing member 17 (see FIG. 1) provided on the floor surface 11.

  The height of the left wall 38 and the right wall 39 is set to the same value as the height of the support wall 35 in the front sheet-like portion 32, and the same value as the height of the rib wall 36 in the rear sheet-like portion 33. ing.

  The rear wall 40 is disposed behind the support wall 35 and the rib wall 36. The rear wall 40 extends along the rear edge of the mat body 30.

  2 and 3, the floor mat 20 includes a through hole 51 for allowing the operating device 12 (see FIG. 1) to pass therethrough, a through hole 52 for passing the left footrest 15L (see FIG. 1), and The through-hole 53 for penetrating the right footrest 15R (see FIG. 1) is provided. Therefore, the floor surface 11 can be covered with the floor mat 20 in the vicinity of a member such as the operation device 12.

  The through holes 51 to 53 are arranged in the left-right direction. The through hole 51 for the operating device 12 is disposed at the center, the through hole 52 for the left footrest 15L is disposed on the left side, and the through hole 53 for the right footrest 15R is disposed on the right side.

  The through holes 51 to 53 are provided on the surface 32 a of the front sheet-like portion 32 in the surface 30 a of the mat body 30. Since the surface 32a of the front sheet-like portion 32 is disposed at a position farther from the floor surface 11 than the surface 33a of the rear sheet-like portion 33 when the floor mat 20 is installed, the surface 33a of the rear sheet-like portion 33 is disposed. Mud, dust, etc. brought into the hole easily stop at the step surface 31a, and do not easily enter the through holes 51 to 53.

  As shown in FIGS. 2 and 3, the floor mat 20 is disposed between the central through hole 51 and the front edge of the floor mat 20 (the front edge 30 c of the mat body 30) in the thickness direction. It has a slit 61 that passes therethrough. The slit 61 extends in the front-rear direction and communicates the central through hole 51 with the front edge of the floor mat 20.

  The slit 61 allows a part of the floor mat 20 to be bent upward so that the central through hole 51 is opened forward (see FIGS. 6 and 7). Therefore, attachment and detachment of the operation device 12 from the central through hole 51 are facilitated.

  2 and 3, the floor mat 20 has a slit 62 that penetrates the floor mat 20 in the thickness direction between the central through hole 51 and the left through hole 52. Yes. The slit 62 extends in the left-right direction, and communicates the central through hole 51 and the left through hole 52.

  The slit 62 cooperates with the slit 61 to allow a part of the floor mat 20 to be bent so that the left through hole 52 is opened forward (see FIGS. 6 and 7). Therefore, attachment and removal of the left footrest 15L from the left through hole 52 are facilitated.

  In order to help a part of the floor mat 20 bend upward so that the left through hole 52 is opened forward, the back surface 37b of the front wall 37 crosses the front wall 37 as shown in FIG. A groove 45 is formed. The groove bottom of the groove 45 may be on the back surface 30 b of the mat body 30. As shown in FIG. 3, the groove 45 is disposed at a position slightly shifted to the left from the left through hole 52.

  Furthermore, the floor mat 20 has a slit 63 that penetrates the floor mat 20 in the thickness direction between the central through hole 51 and the right through hole 53. The slit 63 extends in the left-right direction, and communicates the central through hole 51 and the right through hole 53.

  The slit 63 cooperates with the slit 61 to allow a part of the floor mat 20 to be bent upward so that the right through hole 53 is opened forward (see FIGS. 6 and 7). Therefore, attachment and removal of the right footrest 15R to the right through hole 53 are facilitated.

  In order to help a part of the floor mat 20 bend upward so that the right through hole 53 is opened forward, the back surface 37b of the front wall 37 crosses the front wall 37 as shown in FIG. A groove 46 is formed. The groove bottom of the groove 46 may be on the back surface 30 b of the mat body 30. As shown in FIG. 3, the groove 46 is disposed at a position slightly shifted to the right from the right through hole 53.

  Next, referring to FIGS. 4 to 7 again, a method of laying the floor mat 20 will be described.

  First, the floor mat 20 is bent along the rib groove 41 from the state shown in FIG. 4 to the state shown in FIG. 5 outside the construction machine 1. Thereafter, the floor mat 20 is carried into the cab 10 from the door 16, and the front portion of the floor mat 20 is placed on the rear portion of the floor surface 11 of the cab 10.

  Next, the floor mat 20 is folded from the state shown in FIG. 6 to the state shown in FIG. The floor mat 20 is bent along grooves 45 and 46 formed in the front wall 37, and three through holes 51 to 53 arranged in the left-right direction are opened forward.

  Next, in the state shown in FIGS. 5 and 7, the floor mat 20 is slid forward on the floor surface 11. An operating device 12 and a pair of left and right footrests 15L, 15R provided on the floor surface 11 are disposed in the through holes 51-53. Thereafter, the state of the floor mat 20 is returned to the state shown in FIGS. In this way, the floor mat 20 is laid.

  Next, with reference to FIGS. 4 to 7 again, a method for removing the floor mat 20 will be described.

  First, in the cab 10, the floor mat 20 is bent from the state shown in FIGS. 4 and 6 to the state shown in FIGS. 5 and 7. The floor mat 20 is bent along grooves 45 and 46 formed in the front wall 37, and three through holes 51 to 53 arranged in the left-right direction are opened forward. Further, the floor mat 20 is bent along the rib grooves 41 in a state where the front portion is in contact with the floor surface 11, and the rear portion is lifted from the floor surface 11.

  Next, the floor mat 20 is slid rearward on the floor surface 11, and the operating device 12 and the pair of left and right footrests 15 </ b> L and 15 </ b> R are pulled out from the through holes 51 to 53. Thereafter, the state of the floor mat 20 is returned from the state shown in FIG. 7 to the state shown in FIG.

  Next, after the floor mat 20 is carried out of the cab 10 from the door 16 in the state shown in FIG. 5, the state of the floor mat 20 is returned to the state shown in FIG. In this way, the floor mat 20 is removed.

  As mentioned above, although one Embodiment of this invention was described, this invention is not restrict | limited to said embodiment. Various modifications and substitutions can be made to the above-described embodiment without departing from the scope of the present invention.

  For example, the rib wall 36 of the above embodiment is formed in a square lattice shape having a grid-like space by combining vertical ribs and horizontal ribs so as to be orthogonal, but in a triangular lattice shape or a hexagonal lattice shape. It may be formed, and the lattice shape of the rib wall 36 is not particularly limited.

  In the above embodiment, the groove bottom 41a of the rib groove 41 is on the back surface 30b of the mat body 30, but the groove bottom 141a of the rib groove 141 is the back surface 30b of the mat body 30 as shown in FIG. However, it may remain in the rib wall 36.

  In the above embodiment, the through holes 51 to 53 are arranged in the left-right direction and the slits 62, 63 extend in the left-right direction. However, the present invention is not limited to this. For example, the through holes 51 to 53 may be arranged in the front-rear direction, and the slits 62, 63 may extend in the front-rear direction.

  Moreover, in said embodiment, although the three through-holes 51-53 are provided, there is no restriction | limiting in the number of through-holes. For example, only one through-hole 51 may be provided in the floor mat 20, and in this case, the groove crossing the front wall 37 is slightly shifted to the left of the through-hole 51 and the through-hole 51. One each may be arranged at two positions slightly shifted to the right.

10 cab 11 floor 12 operation device (member provided on the floor)
13L, 13R Operation lever 14L, 14R Operation pedal 15L, 15R Footrest (member provided on the floor)
20 Floor mat 30 Mat body 30a Front surface 30b Back surface (surface on the floor side)
30c Front edge 31 Step portion 31a Step surface 32 Front sheet-like portion 32a Surface (sheet surface)
33 Rear sheet-like portion 33a Surface (sheet surface)
36 rib wall 36b back surface (surface on the floor side)
37 Front Wall 41 Rib Groove 41a Groove Bottom 45 Groove Crossing Front Wall 46 Groove Crossing Front Wall 51 Central Through Hole 52 Left Through Hole 53 Right Through Hole 61 Slit (First Slit)
62 Slit (second slit)
63 slit (second slit)

Claims (8)

A mat body that covers at least one portion of the floor surface of the cab of the construction machine that is wider than the driver's seat from the periphery of the operating device to the vicinity of the driver's seat , and the floor of the mat body. In a floor mat of a construction machine having a grid-like rib wall protruding from the surface side surface,
A rib groove that linearly crosses the rib wall in the left-right direction is formed on the floor side surface of the rib wall from at least one of the left and right edges of the rib wall to the center of the left and right .
A floor mat for a construction machine, comprising a first through-hole for penetrating the operating device provided on the floor surface . The floor mat for a construction machine according to claim 1 , further comprising a first slit penetrating the floor mat in a thickness direction between the first through hole and a front edge of the floor mat. A second through hole through which the member provided on the floor surface,
The floor mat is
The floor mat for a construction machine according to claim 1 or 2 , further comprising a second slit penetrating the floor mat in the thickness direction between the adjacent first through hole and the second through hole. . The first through hole and the second through hole are aligned in the left-right direction,
The floor mat of a construction machine according to claim 3 , wherein the second slit extends in the left-right direction. The front surface of the mat body is further provided on the floor side surface and extends along the front edge of the mat body,
The floor mat of a construction machine according to any one of claims 1 to 4 , wherein a groove across the front wall is provided on a surface of the front wall on the floor surface side. The surface opposite to the floor surface side of the mat body has two sheet surfaces continuous through a step surface,
Said first through hole, said one of the two seat surface, according to any one of claims 1 to 5 provided on the seat surface is located farther from the floor surface when laying on the floor Construction machinery floor mat. The floor mat of the construction machine according to any one of claims 1 to 6 , wherein a groove bottom of the rib groove is on a surface of the mat body on the floor surface side. A construction machine having a floor and a driver's cab provided with a driver's seat and an operation device on the floor,
A mat body that covers at least one portion having a width wider than that of the driver's seat from the periphery of the operating device to the vicinity of the driver's seat from the periphery of the operation device to the rear of the floor, and the floor surface side of the mat body. A floor mat having a grid-like rib wall protruding from the surface;
A rib groove that linearly crosses the rib wall in the left-right direction is formed on the floor side surface of the rib wall from at least one of the left and right edges of the rib wall to the center of the left and right .
A construction machine having a first through-hole for penetrating the operating device provided on the floor surface .

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