working machine

Abstract

The work machine is provided with a driver's seat (6) and a pedal (85) disposed in front of the driver's seat (6) and operated by foot stepping. The pedal (85) has a pedal main body (61) extending in a given direction, a pedal shaft (44) supporting the pedal main body (61) so as to be swingable in the given direction, and a tread surface provided on the upper surface side of the pedal main body (61) and on which an operator places a foot. The tread surface is formed in an inclined shape in which the height from the pedal main body (61) gradually decreases as the big toe side of the foot placed by the operator is directed toward the little toe side.

Description

TECHNICAL FIELD

[0001] The present application relates to a working machine such as a backhoe excavator. BACKGROUND

[0002] In the past, a working machine disclosed in Patent Literature 1 is known.

[0003] The working machine disclosed in Patent Literature 1 has a pair of travel pedals that operate a travel device by foot pedal operation.

[0004] PRIOR ART DOCUMENTS

[0005] PATENT LITERATURE

[0006] Patent Literature 1: Japanese National Publication of Patent Application No. 2019-19572 SUMMARY

[0007] PROBLEMS TO BE SOLVED BY THE INVENTION

[0008] The tread surface of the upper surface of the existing travel pedal is formed as a flat surface parallel to the axis of the pedal shaft. Therefore, when the operator aligns the foot bottom with the tread surface, there is a problem that the movement of the foot is not smooth and the operator becomes tired.

[0009] The present application was made in view of the above-described problems, and aims to provide a working machine that enables smooth pedal operation.

[0010] TECHNICAL SOLUTION FOR SOLVING THE PROBLEMS

[0011] A working machine of one embodiment of the present application includes a driver's seat, and a pedal disposed in front of the driver's seat and operated by foot pedal operation, the pedal including a pedal main body extending in a given direction, a pedal shaft having an axis extending in a direction intersecting the given direction and supporting the pedal main body so as to be swingable about the axis, and a tread surface provided on the upper surface side of the pedal main body and on which an operator places a foot, the tread surface being formed in an inclined shape in which the height from the pedal main body gradually decreases as the big toe side of the foot placed by the operator is directed toward the little toe side.

[0012] Further, the pedal shaft extends in the machine body width direction and is disposed at a middle portion of the pedal main body in the extending direction, supporting the pedal main body so as to be swingable.

[0013] Further, the pedal has a tread member provided on the upper surface side of the pedal main body at a toe tip side of the foot placed by the operator relative to the pedal shaft, and the tread surface is formed on the upper surface of the tread member.

[0014] Further, the working machine includes a pair of the pedals disposed apart from each other by a space.

[0015] Further, the interval of the pair of the pedals gradually widens as the toes side of the foot placed by the operator shifts.

[0016] Further, the tread member is inclined toward a direction in which the side close to the pedal shaft shifts as the big toe side of the foot placed by the operator shifts toward the little toe side in plan view.

[0017] Further, the work machine is provided with a traveling device, and the pedal is a traveling pedal that operates the traveling device.

[0018] Further, the upper surface of the pedal main body is a flat surface parallel to the extending direction of the pedal main body, and the tread surface is formed in an inclined shape in which the height from the upper surface of the pedal main body gradually lowers as the big toe side of the foot placed by the operator shifts toward the little toe side.

[0019] Further, the work machine is provided with: a console disposed in front of the driver's seat; an operating member provided to the console and held to be operated; and a handrail extending rearward from the console, and the pedal is disposed at a position operated in a state in which the operator places an elbow on the handrail to hold the operating member and inclines an upper body forward.

[0020] Effects of Invention

[0021] According to the work machine described above, the pedal operation can be performed while closing the knees and at the big toe side of the foot, and the pedal operation can be smoothly performed. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a plan view of a work machine.

[0023] Figure 2 is a side view of a work machine.

[0024] Figure 3 is a side view of a cab.

[0025] Figure 4 is a perspective view of a driver's section.

[0026] Figure 5 is a plan view of a driver's section.

[0027] Figure 6 is a side view of a traveling pedal and a support structure.

[0028] Figure 7 is a front view of a traveling pedal and a support structure.

[0029] Figure 8 is a plan view of a traveling pedal.

[0030] Figure 9 is Figure 8 a J1-J1 line view.

[0031] Figure 10 is Figure 8 a J2-J2 line view. DETAILED DESCRIPTION

[0032] Hereinafter, one embodiment of the present application will be described with appropriate reference to the drawings.

[0033] Figure 1 is a schematic plan view showing the overall structure of the working machine 1 of the present embodiment. Figure 2 is a schematic side view of the working machine 1. In the present embodiment, as the working machine 1, a backhoe shovel, which is a revolving working machine, is exemplified.

[0034] As shown in Figure 1 , Figure 2 , the working machine 1 is provided with a machine body (revolving base) 2, a traveling device 3, and a working device 4. On the machine body 2, a cab 5 is mounted. In the interior of the cab 5, a driver's seat (seat) 6, on which an operator (driver) sits, is provided. In other words, the driver's seat 6 is mounted on the machine body 2, and the cab 5 surrounds the driver's seat 6. The driver's seat 6 has a seat portion 6A, which is a portion on which the operator sits, and a backrest portion 6B, which is a portion on which the back of the operator is received.

[0035] In the present embodiment, a direction toward the front side of the operator who sits on the driver's seat 6 of the working machine 1 (arrow A1 direction of Figure 1 , Figure 2 ) is set as the front, a direction toward the rear side of the operator (arrow A2 direction of Figure 1 , Figure 2 ) is set as the rear, a direction of Figure 1 , Figure 2 arrow K1 is set as the front-rear direction, a left side of the operator (arrow B1 direction of Figure 1 ) is set as the left, and a right side of the operator (arrow B2 direction of Figure 1 ) is set as the right.

[0036] Further, as shown in Figure 1 , a direction orthogonal to the front-rear direction K1, that is, a horizontal direction is set as a machine body width direction K2 (width direction of the machine body 2) is set as the machine body width direction K2 (width direction of the machine body 2).

[0037] As shown in Figure 1 , Figure 2As shown, the traveling device 3 is a crawler-type traveling device that supports the body 2 so as to be travelable, and has a traveling frame 3A, a first traveling device 3L provided on a left side of the traveling frame 3A, and a second traveling device 3R provided on a right side of the traveling frame 3A. The first traveling device 3L is driven by a first traveling motor Ml, and the second traveling device 3R is driven by a second traveling motor M2. A dozing device 7 is attached to a front portion of the traveling device 3. In addition, the traveling device 3 is not limited to the crawler type, and may, for example, be a wheel-type traveling device.

[0038] As shown, Figure 2 The body 2 is supported on the traveling frame 3A so as to be able to turn around a turning axis Xl via a turning bearing 8. The body 2 is turn-driven by a turning motor M3. A fuel tank Tl, a working oil tank T2, and a counterweight 10 are mounted on a rear portion of the body 2.

[0039] As shown, Figure 1 The cab 5 is mounted on one side portion (left side portion) in the width direction K2 of the body 2. A prime mover El is mounted on the other side portion (right side portion) in the width direction K2 of the body 2. The prime mover El is a diesel engine. In addition, the prime mover El can be a gasoline engine, or can be a hybrid type having an engine and an electric motor. A hydraulic pump Pl is attached to a rear portion of the prime mover El.

[0040] As shown, Figure 1 , Figure 2 A swing bracket 21 is attached to a front portion of the support bracket 20 so as to be able to swing around a longitudinal axis via a swing shaft 26. The working device 4 is attached to the swing bracket 21.

[0041] As shown, Figure 2 The working device 4 has a boom 22, a stick 23, and a bucket (working tool) 24. A base portion 22A of the boom 22 is pivotally attached to an upper portion of the swing bracket 21 so as to be able to turn around a horizontal axis (axis extending in the body width direction K2) via a boom pivot 27.

[0042] The stick 23 is pivotally attached to a front end side of the boom 22 so as to be able to turn around a horizontal axis. The bucket 24 is provided so as to be able to perform a scooping action and a dumping action on the front end side of the stick 23. The scooping action refers to an action of swinging the bucket 24 toward the boom 22, and is an action in a case where, for example, sand or the like is scooped. In addition, the dumping action refers to an action of swinging the bucket 24 away from the boom 22, and is an action in a case where, for example, scooped sand or the like is dropped (discharged).

[0043] In the working machine 1, in place of the bucket 24 or in addition to the bucket 24, other working tools (hydraulic accessories) that can be driven by hydraulic actuators can be installed. As the other working tools, a hydraulic breaker, a hydraulic crusher, an angle broom, a ground auger, a pallet fork, a sweeper, a mower, a snowplow, and the like can be exemplified.

[0044] The swing bracket 21 is swingable by extension and contraction of a swing cylinder C2 provided in the body 2. The boom 22 is swingable by extension and contraction of a boom cylinder C3. The stick 23 is swingable by extension and contraction of a stick cylinder C4. The bucket 24 is capable of a digging operation and a dumping operation by extension and contraction of a bucket cylinder (working tool cylinder) C5. The swing cylinder C2, the boom cylinder C3, the stick cylinder C4, and the bucket cylinder C5 are constituted by hydraulic cylinders.

[0045] As shown in Figs. 1 and 2, the working machine 1 includes a body 2, a traveling device 3, a working device 4, a swing bracket 21, a boom 22, a stick 23, a bucket 24, a cab 5, a driver's seat 6, a control device 41, and the like. Figure 1 Figure 3 As shown in Figs. 1 and 2, the working machine 1 includes a body 2, a traveling device 3, a working device 4, a swing bracket 21, a boom 22, a stick 23, a bucket 24, a cab 5, a driver's seat 6, a control device 41, and the like.

[0046] As shown in Figs. 1 and 2, the working machine 1 includes a body 2, a traveling device 3, a working device 4, a swing bracket 21, a boom 22, a stick 23, a bucket 24, a cab 5, a driver's seat 6, a control device 41, and the like. Figure 3 Figure 4 As shown in Figs. 1 and 2, the working machine 1 includes a body 2, a traveling device 3, a working device 4, a swing bracket 21, a boom 22, a stick 23, a bucket 24, a cab 5, a driver's seat 6, a control device 41, and the like.

[0047] As shown in Figs. 1 and 2, the working machine 1 includes a body 2, a traveling device 3, a working device 4, a swing bracket 21, a boom 22, a stick 23, a bucket 24, a cab 5, a driver's seat 6, a control device 41, and the like. Figure 3 Figure 4 As shown in Figs. 1 and 2, the working machine 1 includes a body 2, a traveling device 3, a working device 4, a swing bracket 21, a boom 22, a stick 23, a bucket 24, a cab 5, a driver's seat 6, a control device 41, and the like.

[0048] The control stand 81 is provided in front of the driver's seat 6 on the body 2, and has a base stand 86 erected on the floor portion 5B (the body 2) and a control stand main body 87 disposed at an upper portion of the base stand 86. The control members 82 are members held and operated by the operator, and are installed to the control stand main body 87 (the control stand 81). The control members 82 include a first control lever 82L and a second control lever 82R arranged in the body width direction K2. The first control lever 82L and the second control lever 82R can perform, for example, a swing operation of the body 2, a swing operation of the boom 22, a swing operation of the stick 23, and a swing operation of the bucket 24.

[0049] As shown in Figs. 1 and 2, the working machine 1 includes a body 2, a traveling device 3, a working device 4, a swing bracket 21, a boom 22, a stick 23, a bucket 24, a cab 5, a driver's seat 6, a control device 41, and the like. Figure 4 ​​​As shown, the control panel body 87 has: a mounting part 92 at the center of the body width direction K2; and armrests 93 provided on the left and right sides of the mounting part 92. The mounting part 92 is mounted to the base 86 in a detachable manner. The armrest 93 located on the left side of the mounting part 92 is referred to as the first armrest 93L, and the armrest 93 located on the right side of the mounting part 92 is referred to as the second armrest 93R.

[0050] The first handrail 93L has: a handrail base 93L1 disposed on the left side of the mounting portion 92; and a handrail body 93L2 pivotally supported on the rear of the handrail base 93L1. The second handrail 93R has: a handrail base 93R1 disposed on the right side of the mounting portion 92; and a handrail body 93R2 integrally formed with the handrail base 93R1.

[0051] The armrest body 93L2 extends rearward (towards the driver's seat 6) from the armrest base 93L1. The armrest body 93R2 also extends rearward (towards the driver's seat 6) from the armrest base 93R1. That is, the armrest 93 is provided on the control panel 81 and extends from the control panel 81 side toward the driver's seat 6 side.

[0052] like Figure 3 As shown, the lower surfaces of the armrests 93 (first armrest 93L and second armrest 93R) are formed as inclined surfaces that slope upwards as they move rearwards. This allows the space below the armrests 93 to widen as it faces the driver's seat 6. In the driver's compartment 42 of this embodiment, the operator's left leg is positioned below the first armrest 93L, and the operator's right leg is positioned below the second armrest 93R. By forming the lower surfaces of the armrests 93 as inclined surfaces that slope upwards as they move rearwards, the space for the operator's legs can be expanded.

[0053] like Figure 4 As shown, the armrest body 93L2 and armrest body 93R2 have an elbow rest 93A at the rear for placing the operator's elbow. The elbow rest 93A is formed, for example, by a cushioning component. The operating member 82 is operated when the operator's elbow is placed on the armrest 93 and the operator is holding the operating member 82 with their upper body in a forward-leaning posture. Specifically, the operator places their left elbow on the elbow rest 93A of the first armrest 93L and holds the first operating handle 82L with their left hand, and places their right elbow on the elbow rest 93A of the second armrest 93R and holds the second operating handle 82R with their right hand. Thus, the operator operates the operating member 82 while seated in the driver's seat 6 with their upper body in a forward-leaning posture.

[0054] The bulldozer blade 80 is the lever that controls the bulldozer device 7.

[0055] like Figure 3 , Figure 4As shown in FIG. 1, a pair of travel pedals 85 are provided on the floor portion 5B as components for operating the travel devices 3 by foot operation by an operator seated on the driver's seat 6. One (left) of the pair of travel pedals 85 is a pedal for operating the first travel device 3L, and the other (right) is a pedal for operating the second travel device 3R.

[0056] As shown in FIG. 1, a pair of travel pedals 85 are provided on the floor portion 5B as components for operating the travel devices 3 by foot operation by an operator seated on the driver's seat 6. One (left) of the pair of travel pedals 85 is a pedal for operating the first travel device 3L, and the other (right) is a pedal for operating the second travel device 3R. Figure 5 As shown in FIG. 1, a pair of travel pedals 85 are provided on the floor portion 5B as components for operating the travel devices 3 by foot operation by an operator seated on the driver's seat 6. One (left) of the pair of travel pedals 85 is a pedal for operating the first travel device 3L, and the other (right) is a pedal for operating the second travel device 3R.

[0057] As shown in FIG. 1, a pair of travel pedals 85 are provided on the floor portion 5B as components for operating the travel devices 3 by foot operation by an operator seated on the driver's seat 6. One (left) of the pair of travel pedals 85 is a pedal for operating the first travel device 3L, and the other (right) is a pedal for operating the second travel device 3R. Figure 5 As shown in FIG. 1, a pair of travel pedals 85 are provided on the floor portion 5B as components for operating the travel devices 3 by foot operation by an operator seated on the driver's seat 6. One (left) of the pair of travel pedals 85 is a pedal for operating the first travel device 3L, and the other (right) is a pedal for operating the second travel device 3R.

[0058] The travel pedal 85 is used for forward and backward movement, as well as steering, of the work machine 1. Specifically, when the travel pedal 85 is pressed forward, the work machine 1 (body 2) moves forward; when the travel pedal 85 is pressed backward, the work machine 1 (body 2) moves backward. Furthermore, if the pressing direction and amount of the left and right travel pedals 85 are the same, the machine travels straight; if the pressing amounts of one travel pedal 85L and the other travel pedal 85R are different, the machine turns. In other words, the speed of the first travel motor M1 can be changed by the pressing amount of one travel pedal 85L, and the speed of the second travel motor M2 can be changed by the pressing amount of the other travel pedal 85R. In the work machine 1 of this embodiment, when traveling straight, the travel pedal 85 is pressed (fully depressed) to its maximum position to achieve straight-line stability. Speed ​​changes can be made using the speed increase / decrease switch provided in the control unit 82.

[0059] Figure 6 This is a side view showing the driving pedal 85 as viewed from the right side. Figure 7 This is a front view of the 85R's driving pedals as seen from the front.

[0060] like Figure 6 , Figure 7 As shown, each travel pedal 85 is supported on the floor portion 5B by a support structure 43. The support structure 43 supporting one travel pedal 85L and the support structure 43 supporting the other travel pedal 85R have the same structure. Therefore, the description will be based on the support structure 43 of the other travel pedal 85R, and the description of the support structure 43 of one travel pedal 85L will be omitted.

[0061] The support structure 43 has a pedal shaft 44 that supports the travel pedals 85. Each travel pedal 85 is supported by the pedal shaft 44 and is able to swing back and forth. The pedal shaft 44 is disposed on the upper surface side of the travel pedal 85. In addition, the pedal shaft 44 is disposed at the middle part of the travel pedal 85 in the front-rear direction. Specifically, the pedal shaft 44 is disposed at a position further rearward than the middle part of the travel pedal 85 in the front-rear direction. Moreover, the pedal shaft 44 extends along the width direction K2 of the body.

[0062] The pedal shaft 44 has a cylindrical rotating shaft 45 fixed to the travel pedal 85 and a support shaft 46 inserted into the rotating shaft 45. The rotating shaft 45 and the support shaft 46 have an axis (rotation axis) X2 extending along the width direction K2 of the machine body, and the rotating shaft 45 is supported so that it can rotate about the axis relative to the support shaft 46. That is, the travel pedal 85 swings back and forth about the rotation axis X2 in the width direction K2 of the machine body.

[0063] The support shaft 46 is mounted between a pair of left and right pedal brackets 47. The left and right pedal brackets 47 are erected on a floor panel 48 mounted to the floor portion 5B. One pedal bracket 47 is disposed on the left side of the pedal shaft 44 and the travel pedal 85, and the other pedal bracket 47 is disposed on the right side of the pedal shaft 44 and the travel pedal 85. Thus, the travel pedal 85 is supported to the floor portion 5B (the floor panel 48) in a swingable manner forward and backward via the pedal shaft 44 and the pair of pedal brackets 47.

[0064] The support structure 43 has a neutral return mechanism 49 that returns the travel pedal 85 from a depressed position, in which the travel pedal 85 is depressed forward or backward from the neutral position, to the neutral position. The neutral return mechanism 49 has a rotation cylinder 50, a rotation shaft 51, an arm member 52, a link shaft 53, a return spring device 54, and a transmission link 55. The rotation cylinder 50 is fitted to the outside of the rotation shaft 51 in an integrally rotatable manner about an axis extending in the body width direction K2. The rotation shaft 51 is supported between a pair of left and right bracket members 56 provided at intervals in the body width direction K2 on the lower surface side of the floor panel 48 in a rotatable manner about an axis extending in the body width direction K2. The arm member 52 is fixed to the rotation cylinder 50 in an upwardly protruding manner. One end side of the link shaft 53 is pivotally supported to the upper portion of the arm member 52. The other end side of the link shaft 53 is housed in a housing 54A of the return spring device 54 in a movable manner (in a protrudable and retractable manner) in the forward and backward directions. The return spring device 54 has a return spring (not shown) that returns the link shaft 53 to an initial position when the travel pedal 85 is in the neutral position. The return spring is housed in the housing 54A. The housing 54A is disposed above the floor panel 48 and is pivotally supported to a bracket member 57. The transmission link 55 has a first link 55A fixed to the rotation cylinder 50, a second link 55B pivotally supported to the other end side of the first link 55A, and a third link 55C pivotally supported to the other end side of the second link 55B and fixed to the lower surface of the travel pedal 85 at the other end side.

[0065] In the neutral reset mechanism 49 described above, when the driving pedal 85 is pressed forward from the neutral position, the second link 55B is pulled upward, and the first link 55A, the rotating cylinder 50, and the arm component 52 rotate as a whole, pushing the connecting shaft 53 forward and pressing it into the housing 54A. This compresses the reset spring within the housing 54A. If the driving pedal 85 is released from the neutral position, the force of the reset spring returns the driving pedal 85 to the neutral position. Conversely, when the driving pedal 85 is pressed backward from the neutral position, the second link 55B is pushed downward, and the first link 55A, the rotating cylinder 50, and the arm component 52 rotate as a whole, pulling the connecting shaft 53 backward and out of the housing 54A. This compresses the reset spring within the housing 54A. If the driving pedal 85 is released from the neutral position, the force of the reset spring returns the driving pedal 85 to the neutral position.

[0066] Additionally, the pedal 85 is pressed using an angle sensor 59 to detect the amount and direction of pressure applied. The angle sensor 59 is, for example, formed by a potentiometer. The angle sensor 59 detects the amount and direction of pressure applied by the pedal 85 by detecting the rotation angle and direction of the rotating shaft 51. The detection signal from the angle sensor 59 is sent to a control device. Based on the detection signal from the angle sensor 59, the control device controls the control valves that control the first travel motor M1 and the second travel motor M2.

[0067] In addition, the rear of the driving pedal 85 is supported by a damping device 60 to provide a natural pedal feel.

[0068] Figure 8 This is a top view of the other party's driving pedal 85R. Figure 9 express Figure 8 Sectional view along line J1-J1. Figure 10 express Figure 8 The J2-J2 line view.

[0069] like Figure 6 , Figure 8 As shown, the pedal 85 has a pedal body 61 and a foot pedal component 62 fixed to the upper surface of the pedal body 61. The pedal body 61 is formed of a flat plate. Figure 6 As shown, the pedal body 61 extends in a given direction K3, and the pedal shaft 44 supports the pedal body 61 so that it can swing in the given direction K3. In this embodiment, the pedal body 61 extends in the front-rear direction K1. Furthermore, the upper surface of the pedal body 61 is a plane that is substantially parallel to a plane passing through the pedal shaft 44 and parallel to the extending direction (given direction K3) of the pedal body 61. A rotation shaft 45 of the pedal shaft 44 is fixed to the upper surface of the pedal body 61.

[0070] The foot pedal component 62 is a component for placing the operator's feet. That is, the foot pedal component 62 is a component that is stepped on by the operator. In this embodiment, the foot pedal component 62 includes a first foot pedal component 62A located on the upper surface side of the pedal body 61, forward of the pedal shaft 44, and a second foot pedal component 62B located on the upper surface side of the pedal body 61, rearward of the pedal shaft 44. The foot pedal component 62 (first foot pedal component 62A, second foot pedal component 62B) is formed from a block component that is rectangular in plan view. The first foot pedal component 62A is provided throughout the front part of the upper surface of the pedal body 61 in the width direction (body width direction K2).

[0071] The upper surface of the first pedal component 62A is the tread surface 63 that is stepped on by the operator. In other words, the driving pedal 85 has a first pedal component 62A (pedal component 62) located on the upper surface side of the pedal body 61, which is closer to the toe side of the foot placed by the operator than the pedal shaft 44, and the tread surface 63 is formed on the upper surface of the pedal component 62.

[0072] like Figure 9 , Figure 10 As shown, the tread surface 63 is sloping in a manner that gradually decreases in height H1 from the upper surface of the pedal body 61 as it moves toward the separation direction D1. Specifically, the left side (the side with the center CL between the pedals) of the tread surface 63 of the first pedal member 62A of the other pedal 85R is higher than the right side. The right side (the side with the center CL between the pedals) of the tread surface 63 of the first pedal member 62A of the other pedal 85L is higher than the left side. Therefore, the high side portion (high position portion) 63a of the tread surface 63 of the first pedal member 62A is the big toe side of the foot resting on the tread surface 63, and the low side portion (low position portion) 63b of the tread surface 63 of the first pedal member 62A of the pedal 85 is the little toe side of the foot resting on the tread surface 63. (Refer to...) Figure 5 ).

[0073] Therefore, as Figure 6 , Figure 9 As shown, the tread surface 63 is sloping so that its height H1 from the upper surface (reference surface) of the pedal body 61 gradually decreases as it moves from the big toe side 63a of the operator's foot toward the little toe side 63b.

[0074] like Figure 9 As shown, the tread surface 63 is inclined relative to the axis (rotation axis) X2 of the pedal shaft 44. In addition, the high side portion 63a of the first pedal component 62A is located above the rotation axis X2, and the low side portion 63b of the first pedal component 62A is located below the rotation axis X2.

[0075] like Figure 8As shown, the first pedal component 62A is inclined in a direction (tilting direction) D2 that moves rearward in the separation direction D1 when viewed from above. In other words, the pedal component 62A is inclined in a direction that moves from the big toe side of the operator's foot towards the little toe side, towards the side closest to the pedal shaft 44 when viewed from above. Specifically, the front surface 62a of the first pedal component 62A is inclined in the direction D2 that moves rearward in the separation direction D1, and the rear surface 62b of the first pedal component 62A is also inclined in the direction D2 that moves rearward in the separation direction D1. Therefore, the first pedal component 62A is inclined relative to the width direction K2 of the machine body and is also inclined relative to the axis X2 of the pedal shaft 44. In this embodiment, the tread surface 63 (first pedal component 62A) is inclined such that its height H1 gradually decreases in the tilting direction D2.

[0076] In addition, the side 62c of the first pedal component 62A on the central CL side of the pedal space is inclined relative to the side edge 61a of the central CL side of the pedal space of the pedal body 61, and the side 62d of the first pedal component 62A opposite to the side 62c is consistent with the side edge 61b of the pedal body 61 opposite to the side edge 61a.

[0077] like Figure 6 , Figure 8 As shown, the second pedal component 62B is formed into a rectangular cuboid shape when viewed from above, with its front surface 62a and rear surface 62b arranged parallel to the axis of the pedal shaft 44. Furthermore, the tread surface (other tread surface) 64, which is the upper surface of the second pedal component 62B, is formed as a flat surface parallel to the rotation axis X2. The tread surface 64 of the second pedal component 62B corresponds to the heel of the operator's foot, which is placed on the travel pedal 85. That is, the second pedal component 62B is pressed down by the operator's heel.

[0078] Furthermore, in this embodiment, the entire surface of the tread 63 formed on the first pedal member 62A is inclined, but this is not a limitation. For example, only the front portion of the tread 63 may be inclined. Additionally, the first pedal member 62A and the second pedal member 62B may be integrally formed. The second pedal member 62B, like the first pedal member 62A, may also be inclined such that its height H1 from the pedal body 61 gradually decreases as it moves toward the separation direction D1. Furthermore, in the illustration, the driving pedal 85 is shown in a horizontal position in the neutral position, but this is not a limitation. For example, the driving pedal 85 may be tilted forward or backward in the neutral position.

[0079] In the travel pedal 85 of the above-described structure, when the travel pedal 85 is depressed to the front side, i.e., when the travel pedal 85 is depressed to the front side, pedal operation can be performed by the big toe of the foot depressing (pressing) the tread surface while the knees are closed. In addition, when the travel pedal 85 is depressed to the rear side, i.e., when the travel pedal 85 is depressed to the rear side, pedal operation can be performed by the heel of the foot depressing (pressing) the tread surface while the knees are opened.

[0080] In addition, in the present embodiment, the upper surface of the pedal body 61 is described as being a planar structure that is parallel to a plane that is parallel to the extension direction (given direction K3) of the pedal body 61 via the pedal shaft 44, but is not limited thereto. For example, the upper surface of the pedal body 61 can also have a shape with concavities and convexities, or an inclined shape, in which case, a plane that is parallel to the extension direction of the pedal shaft 44 and the extension direction (given direction K3) of the pedal body 61 via the portion of the pedal body 61 that is supported by the pedal shaft 44 can be taken as a reference surface of the pedal body 61, and the tread surface 63 can be formed in an inclined shape in which the height from the pedal body 61 (the reference surface of the pedal body 61) gradually decreases as the big toe side 63a of the foot placed by the operator moves toward the little toe side 63b.

[0081] In addition, in the present embodiment, the pedal shaft 44 is described as being fixed to the upper surface of the pedal body 61, but is not limited thereto, and for example, the pedal shaft 44 can also be fixed to the lower surface of the pedal body 61.

[0082] In addition, in the present embodiment, an example in which the present application is applied to each of the pair of travel pedals 85 is described, but is not limited thereto, and can also be applied to only the pedal provided on one side of the left and right feet. In addition, the travel pedal 85 is not limited to one that operates the travel device 3, and for example, can also be applied to a pedal that operates a swing cylinder C2, a boom cylinder C3, a stick cylinder C4, a bucket cylinder C5, a dozing blade cylinder, or a device other than the travel device 3 provided to the working machine 1, and the like.

[0083] In addition, in the present embodiment, an example in which the present application is applied to a backhoe excavator in which the operator performs pedal operation in a state in which the operator leans the upper body forward with the elbows placed on the armrest 93 while holding the operating member 82 is described, but is not limited thereto. For example, the structure can also be one in which pedal operation is performed in a state in which the operator leans against the backrest portion 6B of the driver's seat 6, and can also be applied to various working machines other than backhoe excavators.

[0084] Thus, pedal operation can be performed smoothly. In addition, fine operation can be easily performed.

[0085] In the work machine 1 described above, the driving seat 6 and a pedal 85 operated by foot stepping and disposed in front of the driving seat 6 are provided, the pedal 85 has a pedal main body 61 extending in a given direction K3, a pedal shaft 44 supporting the pedal main body 61 so as to be swingable in the given direction K3, and a tread surface 63 provided on the upper surface side of the pedal main body 61 and on which an operator places a foot, the tread surface 63 is formed in an inclined shape in which a height H1 from the pedal main body 61 gradually decreases as a big toe side (high side portion 63a) of the foot placed by the operator is directed toward a little toe side (low side portion 63b).

[0086] According to this structure, the pedal operation can be performed smoothly while closing the knees and on the big toe side of the foot.

[0087] Further, the pedal shaft 44 is disposed at a midway portion in the front-rear direction K1 of the pedal 85, supports the pedal main body 61 so as to be swingable front-rear, and is disposed extending in the body width direction K2.

[0088] According to this structure, the pedal operation of the travel pedal 85 can also be performed smoothly.

[0089] Further, the pedal 85 has a stepping member 62 provided on the upper surface side of the pedal main body 61 on the toe tip side of the foot placed by the operator than the pedal shaft 44, and the tread surface 63 is formed on the upper surface of the stepping member 62.

[0090] According to this structure, the inclined tread surface 63 can be easily formed.

[0091] Further, a pair of pedals 85 are provided which are disposed apart from each other by a space.

[0092] According to this structure, the pedal operation on the work machine 1 provided with the pair of pedals can be performed smoothly.

[0093] Further, the space between the pair of pedals 85 gradually widens as it moves toward the toe tip side of the foot placed by the operator.

[0094] According to this structure, the two feet of the operator can be easily placed on the pair of pedals 85.

[0095] Further, the stepping member 62 can also be inclined in a direction D2 in which it shifts toward a side close to the pedal shaft 44 in a plan view as the big toe side (high side portion 63a) of the foot placed by the operator is directed toward the little toe side (low side portion 63b).

[0096] Further, the travel device 3 is provided, and the pedal 85 is a travel pedal which operates the travel device 3.

[0097] According to this structure, the pedal operation of the travel pedal can be performed smoothly.

[0098] Further, the upper surface of the pedal main body 61 is a flat surface parallel to the extension direction K3 of the pedal main body 61, and the tread surface 63 is formed in a slope shape in which the height from the upper surface of the pedal main body 61 gradually decreases as the big toe side (high position side portion 63a) of the foot of the operator placed thereon moves toward the little toe side (low position side portion 63b).

[0099] According to this structure, the pedal operation can be smoothly performed.

[0100] Further, there are provided: an operation stand 81 arranged in front of the driver's seat 6; an operation member 82 provided to the operation stand 81 and held and operated; and an armrest 93 extending rearward from the operation stand 81, the pedal 85 being arranged at a position operated in a state in which the upper body of an operator holding the operation member 82 with the elbow placed on the armrest 93 is in a forward-leaning posture.

[0101] In the present embodiment, the operability of the travel pedal 85 in a state in which the upper body of an operator holding the operation member 82 with the elbow placed on the armrest 93 is in a forward-leaning posture can be improved.

[0102] The above describes one embodiment of the present application, but it should be considered that the embodiment disclosed this time is given only by way of illustration and is not a limitation. The scope of the present application is not represented by the above description but by the scope of the claims, and is intended to include meanings and ranges equivalent to those claimed and all modifications within the scope.

[0103] Explanation of Reference Numerals

[0104] 3 Travel device

[0105] 6 Driver's seat

[0106] 44 Pedal shaft

[0107] 61 Pedal main body

[0108] 62 Pedal member

[0109] 63 Tread surface

[0110] 63a Big toe side (high position side portion)

[0111] 63b Little toe side (low position side portion)

[0112] 81 Operation stand

[0113] 82 Operation member

[0114] 85 Pedal (travel pedal)

[0115] 93 Armrest

[0116] D2 Direction

[0117] H1 Height

[0118] K3 given direction (extension direction)

[0119] K2 body width direction

[0120] X2 axis

Claims

1. A work machine, comprising: Driver's seat; as well as The pedal, located in front of the driver's seat, is operated by foot. The pedal has: a pedal body that extends in a given direction; A pedal axle, disposed on the upper surface side of the pedal body, has an axis extending in a direction intersecting the given direction, supporting the pedal body so as to be able to swing about the axis; and a tread, disposed on the upper surface side of the pedal body, for the operator to place their foot. The tread surface is sloping, with its height gradually decreasing from the big toe side of the operator's foot towards the little toe side, and is configured such that the higher side of the tread surface is located above the axis of the pedal shaft, and the lower side of the tread surface is located below the axis of the pedal shaft.

2. The work machine according to claim 1, wherein, The pedal shaft extends along the width of the machine body and is located at the midpoint of the extension direction of the pedal body, supporting the pedal body so that it can swing.

3. The work machine according to claim 2, wherein, The pedal has a stepping component, which is located on the upper surface of the pedal body, closer to the toes of the operator's foot than the pedal axle. The tread surface is formed on the upper surface of the foot pedal component.

4. The operating machine according to any one of claims 1 to 3, wherein, The work machine has a pair of pedals arranged at intervals from each other.

5. The work machine according to claim 4, wherein, The spacing between the pair of pedals gradually widens as the foot moves toward the toe side of the operator's foot.

6. The work machine according to claim 3, wherein, The pedal component tilts in a direction that moves from the big toe side of the operator's foot toward the little toe side, towards the side closer to the pedal axis when viewed from above.

7. The operating machine according to any one of claims 1 to 3, wherein, The machine is equipped with a travel device. The pedal is the pedal for operating the driving device.

8. The work machine according to any one of claims 1 to 3, wherein, The upper surface of the pedal body is a plane parallel to the extending direction of the pedal body. The tread surface is sloping so that its height from the upper surface of the pedal body gradually decreases as it moves from the big toe side of the operator's foot toward the little toe side.

9. The operating machine according to any one of claims 1 to 3, wherein, The work machine has: A control panel, which is positioned in front of the driver's seat; A control component, which is disposed on the control panel and is held and operated; and Armrests extend rearward from the control panel. The pedal is positioned for operation when the operator, with their elbows resting on the armrests and holding the control components, is in a forward-leaning posture.

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