WO2023181533A1 - 建設機械 - Google Patents
建設機械 Download PDFInfo
- Publication number
- WO2023181533A1 WO2023181533A1 PCT/JP2022/046598 JP2022046598W WO2023181533A1 WO 2023181533 A1 WO2023181533 A1 WO 2023181533A1 JP 2022046598 W JP2022046598 W JP 2022046598W WO 2023181533 A1 WO2023181533 A1 WO 2023181533A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pedal
- driver
- seat
- travel
- floor
- Prior art date
Links
- 238000010276 construction Methods 0.000 title claims description 22
- 230000037431 insertion Effects 0.000 claims description 32
- 238000003780 insertion Methods 0.000 claims description 32
- 230000002093 peripheral effect Effects 0.000 claims description 25
- 230000007935 neutral effect Effects 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 claims description 2
- 210000003371 toe Anatomy 0.000 abstract description 22
- 210000002683 foot Anatomy 0.000 description 11
- 239000004576 sand Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/16—Cabins, platforms, or the like, for drivers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N3/00—Arrangements or adaptations of other passenger fittings, not otherwise provided for
- B60N3/04—Arrangements or adaptations of other passenger fittings, not otherwise provided for of floor mats or carpets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/40—Special vehicles
- B60Y2200/41—Construction vehicles, e.g. graders, excavators
- B60Y2200/412—Excavators
Definitions
- the present disclosure relates to a construction machine such as a hydraulic excavator, and particularly to a construction machine provided with a floor mat around the driver's seat.
- a hydraulic excavator which is a typical type of construction equipment, is roughly composed of a self-propelled vehicle body and a working device installed on the vehicle body.
- the vehicle body of a hydraulic excavator includes a lower traveling body and an upper rotating body rotatably mounted on the lower traveling body, and the upper rotating body is provided with a cab defining a driver's cab.
- Inside the cab there is provided a driver's seat where a worker sits, and a floor member that forms a scaffold around the driver's seat, and the upper surface of the floor member is covered with a floor mat.
- a travel operation device for controlling the travel operation of the lower traveling body is provided in front of the driver's seat.
- the travel operation device includes left and right travel pedals that rotate in the front and back direction about a rotation fulcrum, and left and right travel levers that have base ends fixed to these left and right travel pedals and whose tips extend upward. .
- An operator sitting in a driver's seat controls the traveling operation of the lower traveling body by depressing a traveling pedal or manually operating a traveling lever (Patent Document 1).
- An object of the present invention is to provide a construction machine that can prevent obstacles from being caught between the travel pedal and the floor mat.
- the present invention provides a self-propelled vehicle body, a driver's seat provided in the vehicle body, a floor member forming a scaffold around the driver's seat, a floor mat covering the upper surface of the floor member, and a driver's seat provided on the driver's seat.
- a construction machine comprising a pedal provided on the front side and rotatably operated in a longitudinal direction about a rotation fulcrum in order to control traveling drive of the vehicle body, wherein the rotation fulcrum of the pedal and the driver's seat are connected to each other.
- a protruding member projecting upward from the floor mat is provided at a position on the floor member corresponding to the driver's seat side end of the pedal when viewed from above.
- FIG. 1 is a left side view showing a hydraulic excavator to which a first embodiment of the present invention is applied.
- FIG. 2 is an enlarged perspective view showing a driver's seat, a travel operating device, a floor mat, a protruding member, etc. inside the cab.
- FIG. 3 is a plan view of the travel operating device, floor mat, protruding member, etc. seen from above.
- FIG. 3 is a perspective view similar to FIG. 2 showing a driver's seat, a travel operating device, a floor mat, a protruding member, etc., with a left travel pedal and a left travel lever removed;
- FIG. 3 is a perspective view showing the floor mat alone.
- FIG. 3 is a perspective view similar to FIG. 2 showing an enlarged view of a driver's seat, a travel operating device, a floor mat, a protruding member, etc. according to a second embodiment;
- FIG. 3 is a perspective view showing a single floor mat according to a second embodiment.
- FIG. 3 is a perspective view similar to FIG. 2 showing an enlarged view of a driver's seat, a traveling operation device, a floor mat, a protruding member, etc. according to a modified example.
- the traveling direction of the hydraulic excavator will be referred to as the front-rear direction
- the direction orthogonal to the traveling direction will be referred to as the left-right direction.
- a hydraulic excavator 1 includes a self-propelled crawler-type lower body 2, an upper rotating body 3 rotatably mounted on the lower body 2, and a rotating upper body 3 provided on the front side of the upper rotating body 3. It is configured to include a working device 4.
- the lower traveling body 2 and the upper revolving body 3 constitute a vehicle body of the hydraulic excavator 1.
- the lower traveling body 2 has left and right traveling motors 2A each consisting of a hydraulic motor, and left and right crawler tracks 2B (only the left side is shown).
- the traveling motor 2A of the lower traveling body 2 is rotationally driven in accordance with the operation of a traveling operation device 12, which will be described later, to rotate the crawler belt 2B and cause the hydraulic excavator 1 to travel.
- the upper rotating body 3 includes a rotating frame 5 serving as a base, a cab 6 mounted on the left front side of the rotating frame 5, a counterweight 7 provided at the rear end of the rotating frame 5, and a counterweight 7 provided on the front side of the counterweight 7. It is configured to include an exterior cover 8.
- the cab 6 defines a driver's cab in which a worker (operator) rides.
- the left side of the cab 6 is provided with a door 6A for getting on and off the cab 6, and a door 6B for opening and closing the door 6A.
- the counterweight 7 maintains a weight balance with the working device 4 provided on the front side of the swing frame 5.
- the exterior cover 8 covers mounted equipment (all not shown) mounted on the swing frame 5, such as a prime mover, a hydraulic pump, and a control valve.
- the outer peripheral surface (rear surface) of the counterweight 7 is formed in an arc shape centered on the rotation center of the upper revolving structure 3, and the counterweight 7 is arranged near the rotation center of the upper revolving structure 3.
- the outer peripheral surface of the counterweight 7 is within 120% of the vehicle width of the lower traveling body 2.
- the hydraulic excavator 1 is configured as a hydraulic excavator of a small rear swing type.
- a floor member 9 Inside the cab 6, a floor member 9, a driver's seat 10, a control lever device 11, a travel control device 12, etc. are provided.
- the floor member 9 is attached to the left front side of the revolving frame 5, and forms a foothold for workers riding in the cab 6.
- a driver's seat support stand 9A is provided on the rear side of the floor member 9.
- the driver's seat 10 is provided on the driver's seat support base 9A of the floor member 9.
- a worker (operator) who operates the hydraulic excavator 1 sits in the driver's seat 10, and the floor member 9 forms a scaffold around the driver's seat 10.
- Left and right operating lever devices 11 are provided on both the left and right sides of the driver's seat 10.
- the operating lever device 11 is manually operated by an operator in order to control the turning operation of the upper revolving structure 3 and the operation of the working device 4.
- the traveling operation device 12 is provided on the floor member 9, located in front of the driver's seat 10, and is operated by an operator to control the traveling operation of the lower traveling body 2.
- the travel operation device 12 includes a pilot valve 13, a left travel pedal 17, a left travel lever 18, a right travel pedal 20, and a right travel lever 21.
- the left travel pedal 17 and the left travel lever 18, and the right travel pedal 20 and the right travel lever 21 are arranged symmetrically with respect to the center line of the driver's seat 10 in the left-right direction.
- the hydraulic excavator 1 is equipped with a control valve (not shown) that controls the supply and discharge of pressure oil to and from the hydraulic actuator.
- the pilot valve 13 outputs a pilot signal (pilot pressure) to the control valve for controlling the supply and discharge of pressure oil to and from the left and right travel motors 2A.
- the pilot valve 13 includes a valve body 14, a left travel operation section 15, and a right travel operation section 16.
- the valve body portion 14 is arranged on the center line in the left-right direction of the driver's seat 10, and is attached to the floor member 9 using bolts 14A.
- the left travel operation section 15 is provided on the left side of the valve body 14
- the right travel operation section 16 is provided on the right side of the valve body 14 .
- the left running operation unit 15 has a rotation shaft 15A whose center axis extends in the left-right direction, and the rotation shaft 15A rotates in the front-rear direction.
- a rectangular operating tool mounting member 15B is attached to the rotation shaft 15A, and two bolt holes (female screw holes) 15C are formed in the operating tool mounting member 15B.
- the right travel operation section 16 also has a rotation shaft and an operation tool mounting member, and two bolt holes are formed in the operation tool attachment member (both shown in the figure). (not shown).
- the left travel pedal 17 is provided on the left travel operation section 15 of the pilot valve 13, and is operated by the operator with his or her foot. As shown in FIGS. 2 and 6, the lower surface of the left travel pedal 17 is provided with a plate-shaped mounting plate 17A that extends downward. Two bolt insertion holes (not shown) are formed in the mounting plate 17A, which correspond to the bolt holes 15C formed in the operating tool mounting member 15B.
- the left travel pedal 17 is made of a plate body extending in the front-rear direction, and the end located on the driver's seat 10 side is a rear end 17B.
- the left travel lever 18 is provided in the left travel operation section 15 of the pilot valve 13 together with the left travel pedal 17, and is manually operated by an operator.
- the left travel lever 18 is formed as a rod-shaped body that extends in the vertical direction as a whole by bending a pipe material or the like.
- a mounting plate 18A is provided at the base end (lower end) of the left traveling lever 18, and the mounting plate 18A has two bolt insertion holes (not shown) corresponding to the bolt holes 15C formed in the operating tool mounting member 15B. ) is formed.
- a grip 18B that is held by the operator is provided at the tip (upper end) of the left travel lever 18 (see FIG. 3).
- the left travel pedal 17 and the left travel lever 18 are integrally attached to the operating tool mounting member 15B of the left travel operation section 15 using two bolts 19 (fastened together). That is, the bolts 19 are inserted into the bolt holes formed in the mounting plate 18A of the left travel lever 18 and the bolt holes formed in the mounting plate 17A of the left travel pedal 17, and these two bolts 19 are connected to the operating tool. It is screwed into the bolt hole 15C of the mounting member 15B.
- the left travel pedal 17 and the left travel lever 18 are integrally attached to the left travel operation section 15 (operation tool mounting member 15B), and are moved forward and backward using the rotation axis 15A of the left travel operation section 15 as a rotational fulcrum. It is rotated in the direction.
- the left travel pedal 17 and the left travel lever 18 maintain the neutral position shown by the solid line in FIG. 6 in a non-operated state where no operation is performed on them.
- the operator sitting in the driver's seat 10 depresses the left travel pedal 17 in the forward direction (direction of arrow F in FIG. 6) or the left travel lever 18 in the forward direction (direction of arrow F in FIG. 6). direction), the left travel pedal 17 and the left travel lever 18 are displaced to a forward tilted position (the position indicated by the dashed line in FIG. 6) with the rotation axis 15A as the rotation fulcrum. do.
- a pilot signal for rotating the left travel motor 2A in the forward direction is output from the pilot valve 13, and the pressure oil discharged from the hydraulic pump is supplied to the forward side of the left travel motor 2A through the control valve.
- the left travel pedal 17 when the left travel pedal 17 is stepped on in the reverse direction (arrow R direction) or the left travel lever 18 is manually operated in the reverse direction (arrow R direction), the left travel pedal 17
- the left travel lever 18 is displaced to a backward tilted position (the position indicated by the two-dot chain line in FIG. 6) using the rotation axis 15A as a rotation fulcrum.
- a pilot signal for rotating the left travel motor 2A in the reverse direction is output from the pilot valve 13, and the pressure oil discharged from the hydraulic pump is supplied to the reverse side of the left travel motor 2A through the control valve.
- the right travel pedal 20 and the right travel lever 21 are attached to the right travel operation portion 16 of the pilot valve 13, similarly to the left travel pedal 17 and the left travel lever 18.
- the right travel pedal 20 is made of a plate body extending in the front-rear direction, and the end located on the driver's seat 10 side is the rear end 20A.
- the right travel pedal 20 and the right travel lever 21 is displaced to a forward tilted position using the rotation axis (not shown) of the right travel operation section 16 as a rotation fulcrum.
- a pilot signal is output from the pilot valve 13 to rotate the right travel motor (not shown) in the forward direction, and the pressure oil discharged from the hydraulic pump is supplied to the forward direction of the right travel motor through the control valve. .
- the right travel pedal 20 when the right travel pedal 20 is stepped on in the reverse direction or the right travel lever 21 is manually operated in the reverse direction, the right travel pedal 20 and the right travel lever 21 are moved to the right travel operation section 16. It is displaced to a backward tilted position using a rotation axis (not shown) as a rotation fulcrum.
- a pilot signal for rotating the right travel motor in the reverse direction is output from the pilot valve 13, and the pressure oil discharged from the hydraulic pump is supplied to the reverse side of the right travel motor through the control valve.
- the floor mat 22 is placed in front of the driver's seat 10 and covers the upper surface of the floor member 9.
- the floor mat 22 is made of, for example, an elastic rubber material, resin material, or the like, and is detachably attached to the floor member 9.
- the floor mat 22 includes a central mat portion 23, a rear wall 24, a right wall 25, a pilot valve insertion opening 26, a peripheral wall 27, and a left protrusion member 28 and a right protrusion member 29, which will be described later. It is composed of:
- the central mat portion 23 of the floor mat 22 covers a portion of the floor member 9 on the front side of the driver's seat support base 9A.
- the upper surface of the central mat portion 23 is a surface in contact with the sole of the worker's foot, and is an inclined surface 23C that slopes downward from the front end 23A to the rear end 23B.
- a plurality of grooves 23D are provided that are gently curved and extend in the left-right direction.
- These grooves 23D have the function of preventing slipping when a worker inside the cab 6 puts his or her feet on the floor mat 22, and also to sweep dirt, etc. that has fallen onto the floor mat 22 to the outside of the cab 6. , and has the function of guiding dirt, etc. to the entrance/exit 6A of the cab 6. Therefore, the left end of the groove 23D disposed on the side of the entrance/exit 6A of the cab 6 is open to the outside.
- the rear wall 24 is integrally provided at the rear end 23B of the central mat portion 23.
- the rear wall 24 rises upward from the rear end 23B of the central mat portion 23 and extends in the left-right direction.
- the right wall 25 is integrally provided at the right end of the central mat portion 23.
- the right wall 25 rises upward from the right end of the central mat portion 23 and extends in the front-rear direction.
- the rear wall 24 and the right wall 25 surround the central mat portion 23 to dam the earth and sand that has fallen onto the central mat portion 23 so as not to scatter around the floor mat 22.
- the pilot valve insertion opening 26 is provided on the front end 23A side of the central mat portion 23.
- the pilot valve insertion opening 26 is formed as a rectangular hole having an overall rectangular shape, and is arranged at a position corresponding to the pilot valve 13 attached to the floor member 9.
- the pilot valve 13 is inserted through the pilot valve insertion opening 26 , and the upper side of the valve body 14 , the left travel operation section 15 , and the right travel operation section 16 that constitute the pilot valve 13 are inserted through the pilot valve insertion opening 26 . and protrudes toward the upper surface side of the floor mat 22 (center mat portion 23).
- the peripheral wall 27 is provided at the peripheral edge of the pilot valve insertion opening 26.
- the peripheral wall 27 protrudes upward from the peripheral edge of the pilot valve insertion opening 26 and surrounds the entire circumference of the pilot valve insertion opening 26.
- the upper surface of the central mat portion 23 is a slope 23C that slopes downward from the front end 23A to the rear end 23B. The size gradually increases from the front end 23A side to the rear end 23B side.
- the peripheral wall 27 prevents the earth and sand that has fallen onto the central mat portion 23 from scattering downward through the pilot valve insertion opening 26, and protects the pilot valve 13 from the earth and sand.
- the left protruding member 28 and the right protruding member 29 are integrally provided on the central mat portion 23 of the floor mat 22. As shown in FIGS. 2 and 3, the left protruding member 28 is located between the rotation shaft 15A of the left travel operation section 15, which is the rotation fulcrum of the left travel pedal 17, and the driver's seat 10, specifically, the left It is arranged between the peripheral wall 27 and the driver's seat 10 at a position corresponding to the travel pedal 17. Further, the left protruding member 28 and the right protruding member 29 are not formed continuously on the peripheral wall 27, but are arranged at a constant interval on the rear side of the peripheral wall 27.
- the left protruding member 28 is formed in the shape of a triangular block that protrudes from the upper surface of the central mat portion 23, and extends from the driver's seat 10 toward the rotational fulcrum of the left travel pedal 17 (rotation axis 15A of the left travel operation unit 15). It has a tapered tip 28A.
- the upper surface of the central mat portion 23 is a surface that comes into contact with the sole of the worker's foot, whereas the upper surface of the left protrusion member 28 does not come into contact with the sole of the worker's foot during normal work.
- the left travel pedal 17 When the left travel lever 18 is operated in the forward direction, the left travel pedal 17 assumes a forward tilted position (the position indicated by the dashed line in FIG. 6), and the left protrusion member 28 connects the rear end 17B of the left travel pedal 17 and the floor mat 22.
- a large gap is formed between the worker's toe and the floor mat 22, obstacles such as tools and documents that have fallen onto the floor mat 22 (hereinafter, we will explain using the worker's toe as an example) ) to prevent it from getting caught.
- the protruding length of the left protruding member 28 from the upper surface of the central mat portion 23 is such that when the left traveling pedal 17 is in the backward tilted position (the position indicated by the two-dot chain line in FIG. 6), the left traveling pedal 17 is The length is set to ensure a slight gap (enough to prevent the toe from being caught) between the rear end 17B of the left protruding member 28 and the upper end of the left protruding member
- the right protrusion member 29 is located between the rotation axis (not shown) of the right travel operation unit 16, which is a rotation fulcrum of the right travel pedal 20, and the driver's seat 10, specifically, , is arranged between the peripheral wall 27 and the driver's seat 10 at a position corresponding to the right travel pedal 20.
- the right protrusion member 29 is formed in the shape of a triangular block that protrudes from the upper surface of the central mat portion 23, and tapers from the driver's seat 10 toward the rotational fulcrum of the right travel pedal 20 (the rotation axis of the right travel operation unit 16). It has a pointed end 29A.
- the upper surface of the right projection member 29 also does not come into contact with the sole of the worker's foot during normal work.
- the right protrusion member 29 is activated when the right travel lever 21 is operated in the forward direction, the right travel pedal 20 is in a forward leaning position, and a large gap is formed between the rear end 20A of the right travel pedal 20 and the floor mat 22. This also prevents the worker's toes from getting caught in this gap.
- the protrusion length of the right protrusion member 29 from the upper surface of the central mat portion 23 is set equal to the protrusion length of the left protrusion member 28.
- the left protruding member 28 is disposed at a position covered by the rear end 17B side of the left travel pedal 17 when viewed from above. Specifically, when the left travel pedal 17 is in a forward leaning position, the rear end 17B of the left travel pedal 17 corresponds to the rear end of the left projection member 28 (the end surface located closest to the driver's seat 10 side). are doing. In this case, the rear end of the left protruding member 28 does not need to directly face the position of the rear end 17B of the left travel pedal 17 in the forward leaning position, and may be closer to the rotation axis 15A side. It's okay to stay to the side.
- the right protrusion member 29 is disposed at a position covered by the rear end 20A side of the right travel pedal 20 when viewed from above. Specifically, when the right travel pedal 20 is in a forward leaning position, the rear end 20A of the right travel pedal 20 corresponds to the rear end of the right projection member 29 (the end surface located closest to the driver's seat 10 side). are doing. Thereby, when the worker walks on the floor mat 22, it is possible to prevent the worker's feet (toes) from getting caught on the left protruding member 28 or the right protruding member 29.
- the left protruding member 28 has a pointed end 28A that tapers from the driver's seat 10 toward the rotational fulcrum of the left traveling pedal 17
- the right protruding member 29 has a pointed end 28A that tapers from the driver's seat 10 to the rotational fulcrum of the right traveling pedal 20. It has a pointed end 29A that tapers toward the fulcrum.
- the hydraulic excavator 1 has the above-described configuration, and an operator opens the door 6B of the cab 6 and gets into the cab 6 through the entrance/exit 6A. Then, the operator sits in the driver's seat 10 and manually operates, for example, the left travel lever 18 and the right travel lever 21 in the forward direction. As a result, a pilot signal is output from the pilot valve 13 to the control valve, and the pressure oil discharged from the hydraulic pump is supplied to the forward side of the left travel motor 2A and the right travel motor. Therefore, the hydraulic excavator 1 travels forward in response to operations on the left travel lever 18 and the right travel lever 21.
- the left travel pedal 17 assumes a forward tilted position (the position indicated by the dashed line in FIG. 6), and the rear end 17B of the left travel pedal 17 and the floor mat 22 A large gap is formed between them.
- the right travel lever 21 is operated in the forward direction, a large gap is formed between the rear end 20A of the right travel pedal 20 and the floor mat 22. Therefore, if the operator's toes are caught in these gaps, smooth operation of the left traveling lever 18 or the right traveling lever 21 will be hindered.
- a left protrusion member 28 corresponding to the left travel pedal 17 and a right protrusion member 29 corresponding to the right travel pedal 20 are adjacent to each other between the peripheral wall 27 of the floor mat 22 and the driver's seat 10. It is provided. Therefore, even if a large gap is formed between the rear end 17B of the left travel pedal 17 and the floor mat 22, the worker's toe will come into contact with the left protrusion member 28, and the worker's toe will fit into this gap. The left protruding member 28 can prevent this from being caught.
- the left travel lever 18 and the right travel lever 21 can be operated smoothly and accurately at all times, and the travel operation of the hydraulic excavator 1 can be accurately controlled using the left travel lever 18 and the right travel lever 21. .
- the left protruding member 28 is arranged at a position covered by the rear end 17B side of the left traveling pedal 17 when viewed from above, and the right protruding member 29 is covered by the rear end 20A side of the right traveling pedal 20 when viewed from above. placed in position.
- the worker walks on the floor mat 22, it is possible to prevent the worker from accidentally getting his or her feet (toes) caught on the left protruding member 28 or the right protruding member 29.
- the left protruding member 28 has a pointed end 28A that tapers from the driver's seat 10 toward the rotational fulcrum of the left traveling pedal 17
- the right protruding member 29 has a pointed end 28A that tapers from the driver's seat 10 to the rotational fulcrum of the right traveling pedal 20. It has a pointed end 29A that tapers toward the fulcrum.
- the hydraulic excavator 1 includes a self-propelled vehicle body, a driver's seat 10 provided on the vehicle body, a floor member 9 forming a scaffold around the driver's seat 10, and an upper surface of the floor member 9.
- the left traveling lever 18 and the right traveling lever 21 can always be operated smoothly and accurately.
- the floor member 9 is provided with a pilot valve 13 to which a left travel pedal 17 and a right travel pedal 20 are attached and which outputs a pilot signal for travel in response to rotation of the left travel pedal 17 and right travel pedal 20.
- the floor mat 22 is provided with a pilot valve insertion opening 26 located in front of the driver's seat 10 and into which the pilot valve 13 is inserted, and a peripheral wall 27 rising upward from the peripheral edge of the pilot valve insertion opening 26.
- the left protruding member 28 and the right protruding member 29 are arranged between the peripheral wall 27 of the floor mat 22 and the driver's seat 10. According to this configuration, the task of operating the left travel lever 18 and the right travel lever 21 is performed while the surrounding wall 27 prevents dirt, etc.
- the left protruding member 28 and the right protruding member 29 can prevent obstacles such as the user's toes from becoming caught between the floor mat 22 and the left traveling pedal 17 and the right traveling pedal 20.
- the left protruding member 28 and the right protruding member 29 are not formed continuously on the peripheral wall 27, but are arranged at a constant interval on the rear side of the peripheral wall 27. Thereby, a surface on which earth and sand accumulates is secured between the left protrusion member 28 and the right protrusion member 29 and the peripheral wall 27, and the upper end of the peripheral wall 27 can be made to protrude beyond the surface on which earth and sand accumulate.
- the surrounding wall 27 can reliably prevent earth and sand from scattering toward the pilot valve 13 through the pilot valve insertion opening 26.
- the left protruding member 28 and the right protruding member 29 are provided on the floor mat 22. According to this configuration, by simply attaching the floor mat 22 to the floor member 9 in place of the existing floor mat, obstacles can be removed from the gaps formed between the left travel pedal 17 and the right travel pedal 20 and the floor mat 22. The left protruding member 28 and the right protruding member 29 can prevent pinching.
- the floor mat 22 has an inclined surface 23C that slopes downward toward the driver's seat 10 from the rotational fulcrum of the left travel pedal 17 and the right travel pedal 20.
- the left protruding member 28 and the right protruding member 29 have pointed ends 28A and 29A that taper from the driver's seat 10 toward the pivot points of the left traveling pedal 17 and the right traveling pedal.
- the left protruding member 28 and the right protruding member 29 are formed to be thinner (narrower) toward the front where the reference surface of the floor mat 22 is higher, and thicker (wider) toward the rear where the reference surface of the floor mat 22 is lower. has been done. According to this configuration, when dirt, etc.
- the left protrusion member 28 or the right protrusion member 29 can be prevented from being deposited around it. Therefore, while maintaining the ease of cleaning on the floor mat 22, a large rear end surface (guard surface) of the left protrusion member 28 and the right protrusion member 29 is secured, and the left travel pedal 17 or the right travel pedal 20 and the floor mat are secured. 22 can be reliably prevented from entering between the two.
- the left protruding member 28 is arranged at a position covered by the left running pedal 17 when viewed from above, and the right protruding member 29 is arranged at a position covered by the right running pedal 20 when viewed from above.
- a large space for the feet of the worker sitting in the driver's seat 10 can be secured.
- FIGS. 8 and 9 show a second embodiment of the present invention, and the feature of this embodiment is that left and right protruding members are provided on the floor member. Note that in this embodiment, the same components as those in the first embodiment are given the same reference numerals, and their explanations will be omitted.
- the floor member 31 according to the second embodiment forms a foothold for the worker riding in the cab 6, and a driver's seat 10 is provided on the rear side of the floor member 31.
- a supporting driver's seat support stand 31A is provided.
- the floor member 31 is provided with a left protruding member 32 located between the rotation fulcrum of the left travel pedal 17 and the driver's seat 10, and the left protrusion member 32 is located between the rotation fulcrum of the right travel pedal 20 and the driver's seat 10.
- a right protrusion member 33 is provided between the floor members 9 and 9.
- the left protruding member 32 is provided on the upper surface of the floor member 31, located between the rotational fulcrum of the left travel pedal 17 (rotation shaft 15A of the left travel operation section 15) and the driver's seat 10.
- the left protruding member 32 is formed in a triangular prism shape extending upward from the upper surface of the floor member 31, and has a pointed end 32A that tapers from the driver's seat 10 toward the pivot point of the left travel pedal 17.
- the left protruding member 32 protrudes above the floor mat 34 through a left protruding member insertion hole 40 of the floor mat 34, which will be described later, and is inserted into the gap formed between the rear end 17B of the left travel pedal 17 and the floor mat 34 so that the operator can Prevent the toe from getting caught. Further, the left protrusion member 32 is disposed at a position covered by the rear end 17B side of the left travel pedal 17 when viewed from above.
- the right protrusion member 33 is located between the rotational fulcrum of the right travel pedal 20 (the rotation axis of the right travel operation section 16) and the driver's seat 10, and is provided on the upper surface of the floor member 31.
- the right protrusion member 33 is formed in a triangular prism shape extending upward from the upper surface of the floor member 31, and has a pointed end (not shown) that tapers from the driver's seat 10 toward the pivot point of the right travel pedal 20. There is.
- the right protruding member 33 protrudes onto the floor mat 34 through the right protruding member insertion hole 41 of the floor mat 34, and the toe of the worker is inserted into the gap formed between the rear end 20A of the right travel pedal 20 and the floor mat 34. prevent it from getting caught. Further, the right protrusion member 33 is disposed at a position covered by the rear end 20A side of the right travel pedal 20 when viewed from above.
- the floor mat 34 is placed in front of the driver's seat 10 and covers the upper surface of the floor member 31.
- the floor mat 34 includes a central mat portion 35, a rear wall 36, a right wall 37, a pilot valve insertion opening 38, and a peripheral wall 39. (See Figure 9).
- the central mat portion 35 has an inclined surface 35C that slopes downward from the front end 35A to the rear end 35B, and the upper surface of the central mat portion 35 on the rear end 35B side is gently curved and extends in the left-right direction.
- a plurality of grooves 35D are provided.
- the floor mat 34 is different in that a left protrusion member insertion hole 40 and a right protrusion member insertion hole 41, which will be described later, are provided in place of the left protrusion member 28 and right protrusion member 29 according to the first embodiment. This differs from the floor mat 22 according to the first embodiment.
- the left protruding member insertion hole 40 and the right protruding member insertion hole 41 are provided in the central mat portion 35 of the floor mat 34.
- the left projection member insertion hole 40 has a triangular shape corresponding to the left projection member 32 at a position corresponding to the left projection member 32 of the floor member 31, that is, a position covered by the rear end 17B side of the left travel pedal 17 when viewed from above. It is formed as a through hole.
- the right projection member insertion hole 41 has a triangular shape corresponding to the right projection member 33 at a position corresponding to the right projection member 33 of the floor member 31, that is, a position covered by the rear end 20A side of the right travel pedal 20 when viewed from above. It is formed as a through hole.
- the left protruding member 32 of the floor member 31 protrudes toward the upper surface of the floor mat 34 through the left protruding member insertion hole 40 of the floor mat 34.
- the right protruding member 33 of the floor member 31 protrudes to the upper surface side of the floor mat 34 through the right protruding member insertion hole 41 of the floor mat 34.
- the hydraulic excavator according to the second embodiment has the floor member 31 and the floor mat 34 as described above, and when the left travel lever 18 is operated in the forward direction, the rear end 17B of the left travel pedal 17 and the floor Even if a large gap is formed between the worker and the mat 34, the left protruding member 32 can prevent the worker's toes from getting caught in this gap. Similarly, even if a large gap is formed between the rear end 20A of the right travel pedal 20 and the floor mat 34 due to the right travel lever 21 being operated in the forward direction, the worker's toes will not fit into this gap. The right protruding member 33 can prevent this from being caught.
- the left protruding member 28 and the right protruding member 29 are arranged adjacent to each other on the upper surface of the floor mat 22.
- the present invention is not limited to this, and a single protrusion member 42 may be provided at a position corresponding to the left travel pedal 17 and the right travel pedal 20, for example, as in a modified example shown in FIG.
- a protrusion member 42 extending in the left-right direction is provided at a position covered by the rear end 17B side of the left travel pedal 17 and the rear end 20A side of the right travel pedal 20 when viewed from above, and this protrusion member 42 allows the left travel pedal to be It may be configured to prevent the worker's toes from getting caught in the gaps formed between the pedal 17 and the right travel pedal 20 and the floor mat 22.
- the left protruding member 28 and the right protruding member 29 are formed in a triangular block shape.
- the present invention is not limited to this, and may be formed into a diamond-shaped or elliptical block shape, for example. This also applies to the left protrusion member 32 and right protrusion member 33 according to the second embodiment.
- a hydraulic excavator 1 is illustrated that includes a left travel pedal 17 with an integrated left travel lever 18 and a right travel pedal 20 with an integrated right travel lever 21.
- the present invention is not limited to this, and can also be applied to, for example, a wheel-type construction machine equipped with a single pedal without an integrated lever.
- the present invention is not limited to the travel pedal, but may include a protruding member that prevents obstacles from being caught between the brake pedal and the floor mat, for example.
- a hydraulic excavator 1 having a crawler-type lower traveling body 2 and having an ultra-small backward turning specification is exemplified as a construction machine.
- the present invention is not limited to this, and is applicable to other construction machines equipped with a travel operation device having a travel pedal and a travel lever, such as crawler type hydraulic excavators other than those with ultra-small rear turning specifications, wheel type hydraulic excavators, and hydraulic cranes. It can also be widely applied.
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
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- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
Description
3 上部旋回体(車体)
9,31 フロア部材
12 走行操作装置
13 パイロット弁
15A 回動軸(回動支点)
17 左走行ペダル
20 右走行ペダル
22,34 フロアマット
23C,35C 傾斜面
26,38 パイロット弁挿通開口
27,39 周壁
28,32 左突起部材
28A,29A,32A 尖端部
29,33 右突起部材
40 左突起部材挿通孔
41 右突起部材挿通孔
42 突起部材
Claims (7)
- 自走可能な車体と、前記車体に設けられた運転席と、前記運転席の周囲に足場を形成するフロア部材と、前記フロア部材の上面を覆うフロアマットと、前記運転席の前側に設けられ前記車体の走行駆動を制御するために回動支点を中心として前後方向に回動操作されるペダルとを備えてなる建設機械において、
前記ペダルの回動支点と前記運転席との間であって、前記フロア部材上における上面視で前記ペダルの前記運転席側の端部に対応する位置に、前記フロアマットから上方に突出する突起部材が設けられていることを特徴とする建設機械。 - 前記フロア部材には、前記ペダルが取付けられ前記ペダルの回動に応じて走行用のパイロット信号を出力するパイロット弁が設けられ、
前記フロアマットには、前記運転席の前側に位置して前記パイロット弁が挿通されるパイロット弁挿通開口と、前記パイロット弁挿通開口の周縁部から上方に立上る周壁とが設けられ、
前記突起部材は、前記フロアマットの前記周壁と前記運転席との間に配置されていることを特徴とする請求項1に記載の建設機械。 - 前記突起部材は、前記フロアマットに設けられていることを特徴とする請求項1に記載の建設機械。
- 前記突起部材は前記フロア部材に設けられ、
前記フロアマットには、上下方向に貫通し前記突起部材が挿通される突起部材挿通孔が設けられていることを特徴とする請求項1に記載の建設機械。 - 前記フロアマットは、前記ペダルの回動支点から前記運転席に向けて下り勾配となる傾斜面を有し、
前記突起部材は、前記運転席から前記ペダルの回動支点に向けて先細りとなる尖端部を有していることを特徴とする請求項1に記載の建設機械。 - 前記突起部材は、上面視で前記ペダルに覆われる位置に配置されていることを特徴とする請求項1に記載の建設機械。
- 前記ペダルは、非操作状態である中立位置と、前記中立位置に対して回動支点を中心として前方に回動する前傾位置と、前記中立位置に対して回動支点を中心として後方に回動する後傾位置と、に移動可能に構成されることを特徴とする請求項1に記載の建設機械。
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JP2024509758A JPWO2023181533A1 (ja) | 2022-03-25 | 2022-12-19 | |
CN202280086435.5A CN118510966A (zh) | 2022-03-25 | 2022-12-19 | 工程机械 |
EP22932503.0A EP4438818A1 (en) | 2022-03-25 | 2022-12-19 | Construction machine |
KR1020247021849A KR20240110990A (ko) | 2022-03-25 | 2022-12-19 | 건설 기계 |
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JP2022-049879 | 2022-03-25 | ||
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WO2023181533A1 true WO2023181533A1 (ja) | 2023-09-28 |
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PCT/JP2022/046598 WO2023181533A1 (ja) | 2022-03-25 | 2022-12-19 | 建設機械 |
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EP (1) | EP4438818A1 (ja) |
JP (1) | JPWO2023181533A1 (ja) |
KR (1) | KR20240110990A (ja) |
CN (1) | CN118510966A (ja) |
WO (1) | WO2023181533A1 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005002719A (ja) * | 2003-06-13 | 2005-01-06 | Hitachi Constr Mach Co Ltd | 建設機械のペダルカバー |
JP2007050720A (ja) | 2005-08-15 | 2007-03-01 | Hitachi Constr Mach Co Ltd | 建設機械 |
JP2012046008A (ja) * | 2010-08-25 | 2012-03-08 | Daihatsu Motor Co Ltd | 車両用踏込みペダルのストッパ取付け構造 |
JP2015140637A (ja) * | 2014-01-30 | 2015-08-03 | 日立建機株式会社 | 建設機械 |
-
2022
- 2022-12-19 EP EP22932503.0A patent/EP4438818A1/en active Pending
- 2022-12-19 WO PCT/JP2022/046598 patent/WO2023181533A1/ja active Application Filing
- 2022-12-19 JP JP2024509758A patent/JPWO2023181533A1/ja active Pending
- 2022-12-19 KR KR1020247021849A patent/KR20240110990A/ko unknown
- 2022-12-19 CN CN202280086435.5A patent/CN118510966A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005002719A (ja) * | 2003-06-13 | 2005-01-06 | Hitachi Constr Mach Co Ltd | 建設機械のペダルカバー |
JP2007050720A (ja) | 2005-08-15 | 2007-03-01 | Hitachi Constr Mach Co Ltd | 建設機械 |
JP2012046008A (ja) * | 2010-08-25 | 2012-03-08 | Daihatsu Motor Co Ltd | 車両用踏込みペダルのストッパ取付け構造 |
JP2015140637A (ja) * | 2014-01-30 | 2015-08-03 | 日立建機株式会社 | 建設機械 |
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EP4438818A1 (en) | 2024-10-02 |
JPWO2023181533A1 (ja) | 2023-09-28 |
CN118510966A (zh) | 2024-08-16 |
KR20240110990A (ko) | 2024-07-16 |
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