JP2006051867A - Non-slip structure for construction machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a non-slip structure for a construction machine in which a number of holes are bored in a substrate that makes a step or foothold in the upper face of the machine and a number of protruded parts provided in the surface of a non-slip member are protruded from the holes of the substrate, and to lower costs by suppressing an increase in the size or shape of a rubber sheet even when the size or shape of the foothold substrate is varied. <P>SOLUTION: A number of holes 31 are bored in the substrate 30 that makes the step or the foothold in the upper face of the machine, and a number of protruded parts 41 are provided in the surface of the non-slip member 40. Moreover, the non-slip member 40 is fixed in the lower face of the substrate 30 so that the protruded parts 41 are protruded from the holes 31 of the substrate 30, and thus, a non-slip plate 20 is formed. The non-slip member 40 is made by a combination of a plurality of the rubber sheets 40A of the same shape. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an anti-slip structure for a construction machine, and more particularly to an anti-slip structure installed on a step of a construction machine such as a hydraulic excavator or a scaffold on the upper surface of the machine.

  In general, in a construction machine such as a hydraulic excavator, a step is provided in the machine body so that an operator can get on and off the driver's seat or perform maintenance of an engine and hydraulic equipment. In addition, an operator may get on the upper surface of the machine during maintenance. However, since the step and the upper surface of the machine are formed of a steel plate, there is a risk of slipping a foot when an operator gets on or walks on a board serving as a scaffold such as the step or the upper surface of the machine.

  As an anti-slip material for scaffolds such as the above-mentioned steps and the upper surface of the machine, the upper plate and lower plate are connected by hem processing at the upper plate end, and a box structure having a predetermined gap between the upper plate and lower plate is formed. Cover is known. The upper plate has a dent except for the end portion, and a plurality of convex portions having a height equal to the depth of the dent are provided on the surface. Since the lower plate is formed with a plurality of rows of beads along its width direction, the convex portion exhibits an anti-slip effect (see, for example, Patent Document 1).

  In addition, there is also known a configuration in which a plurality of burring holes are formed in a substrate serving as a scaffold such as the step or the upper surface of the machine, and an anti-slip effect is exhibited by using a peripheral flange of the burring hole as a protrusion (for example, Patent Document 2). reference).

  On the other hand, the applicant of the present application is a non-slip structure for a construction machine including a substrate that serves as a scaffold for a step or the upper surface of a machine, and an anti-slip member that is installed on the substrate. An anti-slip structure for a construction machine, which is formed from a rubber sheet provided with a portion and in which the anti-slip member is fixed to the upper surface of the substrate, has been filed.

In addition, in the above-mentioned anti-slip structure of a construction machine, as shown in FIG. 11, a large number of portions of a steel plate substrate 2 that forms the upper surface of the machine body 1 of the construction machine are provided on a portion that serves as a scaffold for an operator. A plurality of substantially hemispherical convex portions 5 corresponding to the numerous holes 3 are provided on the surface of the rubber sheet anti-slip member 4, and the convex portions 5 are formed in the holes 3 of the substrate 2. A structure is also proposed in which the anti-slip member 4 is fixed to the lower surface of the substrate 2 so as to protrude from the base plate 2.
JP-A-9-302723 JP 2001-262619 A

  The inventions described in Patent Document 1 and Patent Document 2 can exhibit a sufficient anti-slip effect because the convex portions and the protruding portions are engaged with and engaged with the shoe sole of the operator. However, since it has a structure with sharp protrusions on a steel plate substrate that serves as a scaffold, there is a risk of injury from the protrusions when an operator attaches a hand or knee on a step or top surface of the machine. There was a problem that the safety of workers could not be sufficiently secured.

  In order to avoid this risk, the applicant of the present invention, as described above, has slipped a construction machine in which a large number of convex portions are provided on the surface of a rubber sheet anti-slip member and fixed so as to protrude from the hole of the board. A stop structure is proposed. In this proposal, since the anti-slip member is formed of a rubber sheet, there is no risk of injury even if the operator puts a hand or knee on the scaffolding such as the step or the upper surface of the machine. Can be secured. However, if the size or shape of the scaffolding part such as the step or the upper surface of the machine is different, it is necessary to change the size and shape of the anti-slip member, and a plurality of types of rubber sheets are prepared and the mold type for molding is selected. It must be increased, resulting in increased costs.

  Therefore, the construction machine has a non-slip structure in which a large number of holes are formed in a substrate that serves as a scaffolding in a step or the upper surface of the machine, and a large number of protrusions provided on the surface of the anti-slip member are projected from the hole of the substrate. Even if the size and shape of the substrate serving as the scaffold are different, there arises a technical problem to be solved in order to reduce the cost by suppressing an increase in the size and shape of the rubber sheet, The present invention aims to solve this problem.

  The present invention has been proposed in order to achieve the above object, and the invention according to claim 1 opens a large number of holes in a substrate serving as a scaffold in a step, a machine upper surface, etc. A non-slip structure of a construction machine, wherein the anti-slip member is fixed to the lower surface of the substrate so that the protrusion protrudes from the hole of the substrate, the anti-slip member having the same shape Provided is a non-slip structure for a construction machine composed of a rubber sheet in which a plurality of things are combined.

  According to this configuration, the anti-slip member is configured by combining a plurality of rubber sheets having the same shape, and the protrusions of the anti-slip member are protruded and fixed from a large number of holes provided in the substrate serving as a scaffold. The anti-slip effect is exhibited by the convex portion of the anti-slip member.

  The invention according to claim 2 is provided with a plurality of types of substrates having different sizes and shapes by providing uneven portions on the side edge portions of the rubber sheet, bringing the side edge portions of adjacent rubber sheets closer together, and combining the uneven portions. Provided is a non-slip structure for a construction machine configured to be compatible.

  According to this configuration, depending on the size and shape of the substrate that serves as a scaffold, the sliding positions of different sizes and shapes can be obtained by changing the position and direction of the rubber sheet having the same shape and combining the uneven portions on the side edges. A stop member is configured.

  According to the first aspect of the present invention, the convex portion of the anti-slip member protrudes and is fixed from a large number of holes provided in the substrate serving as a scaffold, thereby exhibiting the anti-slip effect by the convex portion of the anti-slip member. Since the other part of the non-slip member excluding the convex part is protected by the substrate, a non-slip structure having excellent durability can be obtained. In addition, since the anti-slip member is configured by combining multiple rubber sheets of the same shape, there is no risk of injury even if the operator attaches a hand, knee, etc. to the scaffolding part such as the step or the upper surface of the machine, Work safety can be ensured.

  According to the second aspect of the present invention, by changing the position and direction of the rubber sheet having the same shape according to the size and shape of the substrate serving as a scaffold, the uneven portions on the side edge portions are combined and arranged, Different anti-slip members are constructed. Therefore, in addition to the effect of the invention described in claim 1, even when the size and shape of the substrate are different, the non-slip member can be constituted by a single type of rubber sheet, and it is necessary to increase the number of molds for molding. In addition, the cost can be reduced. In addition, since the rubber sheet is disposed by combining the concavo-convex portions, there is no possibility that the rubber sheet is displaced.

  Hereinafter, a non-slip structure for a construction machine according to the present invention will be described with reference to preferred embodiments. An anti-slip structure for a construction machine in which a large number of holes are formed in a substrate serving as a scaffold in a step, a machine upper surface, and the like, and a large number of protrusions provided on the surface of the anti-slip member are protruded from the holes in the substrate. Even if the size and shape of the substrate serving as the scaffold are different, the purpose of reducing the cost by suppressing the increase in the size and shape of the rubber sheet is An anti-slip structure for a construction machine in which a hole is opened and a number of protrusions are provided on the surface of the anti-slip member, and the anti-slip member is fixed to the lower surface of the substrate so that the protrusion protrudes from the hole of the substrate. And the said anti-slip | skid member was implement | achieved by comprising from the rubber sheet which combined the thing of the same shape.

  FIG. 1 shows a side surface of a hydraulic excavator 10 as an example of a construction machine, and an upper swing body 13 is mounted on a lower traveling body 11 via a swing mechanism 12 so as to be rotatable. The upper swing body 13 is provided with a cab 14 on one front side thereof, and a boom 15 is attached to the front center portion so as to be able to be raised and lowered. An engine and hydraulic equipment (both not shown) are mounted on the rear part of the upper swing body 13 and are covered with a house cover 16. Further, a counterweight 17 is attached to the rear end portion of the upper swing body 13. An arm 18 is attached to the tip of the boom 15 so as to be rotatable up and down, and a bucket 19 is attached to the tip of the arm 18.

  FIG. 2 shows a plan view of the upper swing body 13 and shows a state in which the work attachment such as the boom 15 is removed for convenience of explanation. The upper revolving structure 13 is provided with a non-slip plate 20 at a position for a worker to get on and off the upper surface of the house cover 16 and a position when the engine or hydraulic equipment is maintained on the upper surface of the house cover 16. Is provided. The anti-slip plate 20 includes a substrate 30 and an anti-slip member 40 as will be described later.

  FIG. 3 shows a substrate 30, which is provided with a large number of holes 31, 31... At appropriate intervals, for fixing the substrate 30 to the house cover 16 in the vicinity of the corner of the substrate 30. An attachment hole 32 is provided, and an attachment hole 33 for fixing the anti-slip member 40 to the substrate 30 is provided near the center of the substrate 30. The material of the substrate 30 is not particularly limited as long as it is a strong material that does not deform when an operator rides as a scaffold, such as a steel plate or a stainless steel plate.

  FIG. 4 shows a rubber sheet 40A constituting the anti-slip member 40. One side edge portions 42 and 43 intersecting at right angles are formed in a substantially straight shape, and the substrate 30 is located near the corner portion formed in a round shape. A mounting hole 44 is opened at a position corresponding to the mounting hole 32 provided in the vicinity of the corner. Further, the other side edge portions 45 and 46 intersecting at right angles are formed in a wavy shape, and an attachment hole 47 is opened at a position corresponding to the attachment hole 33 provided in the vicinity of the center portion of the substrate 30.

  As will be described later, when the anti-slip member 40 is configured by combining a plurality of rubber sheets 40A, the convex portions and concave portions of the wavy side edge portions 45 and 46 are combined. Further, on the surface of the rubber sheet 40A, a large number of convex portions 41, 41... Are provided at positions corresponding to the large numbers of holes 31, 31. The convex portion 41 has a substantially hemispherical shape, and is formed such that when the convex portion 41 is inserted into the hole 31 of the substrate 30, the apex portion of the convex portion 41 protrudes higher than the surface of the substrate 30. . The back surface of the rubber sheet 40A is a flat surface.

  5 to 7 show an example of the anti-slip plate 20, and the anti-slip plate 20 includes a substrate 30 that serves as a step or a scaffold on the upper surface of the machine, and an anti-slip member 40 installed on the substrate 30. . In the example shown in the figure, two rubber sheets 40A, 40A having the same shape are symmetrically arranged, and the mounting hole 47 provided in the vicinity of the central portion of the substrate 30 is matched with the mounting hole 47 of the rubber sheet 40A. The fixing screws 21 are inserted into the mounting holes 33 and 47 to integrally fix the substrate 30 and the rubber sheet 40A, and the mounting holes 32 provided in the corners of the substrate 30 are provided in the vicinity of the corners of the rubber sheet 40A. The mounting holes 44 are matched, and the fixing screws 22 are inserted into the mounting holes 32 and 44 so that the substrate 30 and the rubber sheet 40A are integrally fixed to the upper surface of the house cover 16.

  At this time, for example, the side edge portions 42 of the rubber sheets 40A and 40A are combined into one rectangular side dimension W1 of the substrate 30 by combining the convex portions and concave portions of the side edge portions 46 and 46 between the adjacent rubber sheets 40A and 40A. , 42 are combined so that the dimensions between them are substantially the same, and the other rectangular side dimension W2 of the substrate 30 is combined and fixed so that the dimensions between the side edges 43, 43 of the rubber sheets 40A, 40A are substantially the same. Thus, the anti-slip member 40 is configured. As described above, a large number of convex portions 41, 41... Provided on the surface of the anti-slip member 40 (rubber sheets 40A, 40A) are projected from a large number of holes 31, 31. The anti-slip plate 20 is fixed to the upper surface of the house cover 16 by bringing the anti-slip member 40 into close contact with the lower surface of the substrate 30.

  8 to 10 show another example of the anti-slip plate 20, and in the example shown in the figure, four rubber sheets 40A, 40A, 40A, 40A having the same shape are symmetrically arranged, and the center of the substrate 30 is shown. The mounting hole 47 of the rubber sheet 40A is matched with the mounting hole 33 provided in the vicinity of the portion, and the fixing screw 21 is inserted into both the mounting holes 33 and 47 to integrally fix the substrate 30 and the rubber sheet 40A. The mounting holes 44 provided in the vicinity of the corners of the rubber sheet 40A are aligned with the mounting holes 32 provided in the corners of the substrate 30, and the fixing screws 22 are inserted into the mounting holes 32 and 44 to connect the substrate 30 and the rubber sheet 40A. It is integrally fixed to the upper surface of the house cover 16.

  At this time, the convex portions and concave portions of the side edge portions 45 and 46 between the adjacent rubber sheets 40A and 40A are combined, and the side edge portion 42 of each of the rubber sheets 40A and 40A is combined with one rectangular side dimension W3 of the substrate 30. 43 are combined so that the dimensions between them substantially match, and the other rectangular side dimension W4 of the substrate 30 is combined and fixed so that the dimensions between the side edges 42, 43 of the rubber sheets 40A, 40A substantially match. Thus, the anti-slip member 40 is configured. As described above, a large number of protrusions 41, 41... Provided on the surface of the anti-slip member 40 (rubber sheets 40A, 40A, 40A, 40A) protrude from a large number of holes 31, 31. In this manner, the anti-slip plate 20 is fixed to the upper surface of the house cover 16 by bringing the anti-slip member 40 into close contact with the lower surface of the substrate 30.

  As described above, since the anti-slip member 40 is configured by combining a plurality of rubber sheets 40A having the same shape, the rubber sheet 40A can be shared even with the anti-slip plates 20 having different sizes and shapes. Therefore, it is not necessary to prepare a plurality of types of anti-slip members 40 that are different for each type of anti-slip plate 20, and parts management is simplified, thereby reducing costs.

  It should be noted that the present invention can be variously modified without departing from the spirit of the present invention, and the present invention naturally extends to the modified ones.

1 is a side view of a hydraulic excavator to which the present invention is applied. The top view of the upper turning body of the hydraulic shovel shown in FIG. The top view of the board | substrate which comprises the non-slip | skid plate which concerns on this invention. The rubber sheet which comprises the slip prevention plate which concerns on this invention is shown, (a) Top view, (b) Front view, (c) Bottom view. The top view which shows an example of the non-slip | skid plate which concerns on this invention. FIG. 6 is a bottom view of the anti-slip plate shown in FIG. 5. AA line sectional view of Drawing 5. The top view which shows another example of the non-slip | skid plate which concerns on this invention. FIG. 9 is a bottom view of the anti-slip plate shown in FIG. 8. BB sectional drawing of FIG. Sectional drawing of the conventional anti-slip | skid plate.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Excavator 13 Upper revolving body 30 Substrate 31 Hole 40 Non-slip member 40A Rubber sheet 41 Convex part 45 Side edge part 46 Side edge part

Claims (2)

The anti-slip member is provided with a large number of holes in a substrate that serves as a scaffold for a step, a machine upper surface, and the like, and a large number of convex portions are provided on the surface of the anti-slip member, and the convex portions protrude from the holes of the substrate. Is a non-slip structure of a construction machine that is fixed to the lower surface of the substrate,
An anti-slip structure for a construction machine, wherein the anti-slip member comprises a rubber sheet formed by combining a plurality of members having the same shape. An uneven portion is provided on a side edge portion of the rubber sheet, the side edge portions of adjacent rubber sheets are brought close to each other, the uneven portion is combined, and the substrate is configured to be compatible with a plurality of types of substrates having different sizes and shapes. 1. A non-slip structure for a construction machine according to 1.

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