Work machine

Abstract

A work machine includes a traveling body, and a revolving body. The revolving body includes a revolving frame rotatably disposed above the traveling body, a flat surface disposed on the revolving frame, and a storage box disposed adjacent to the flat surface. The storage box includes a shelf that is movable.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application is a U.S. National stage application of International Application No. PCT / JP2024 / 006616, filed on Feb. 22, 2024. This U.S. National stage application claims priority under 35 U.S.C. § 119(a) to Japanese Patent Application No. 2023-031808, filed in Japan on Mar. 2, 2023. The entire contents of Japanese Patent Application No. 2023-031808 is hereby incorporated herein by reference.BACKGROUNDTechnical Field

[0002] The present invention relates to a work machine.BACKGROUND ART

[0003] A work machine is provided with a storage box in which tools or the like used by an operator for maintenance, or the like are stored (e.g., see Japanese Laid-Open Patent Publication No. 2018-141360 A).

[0004] For example, in the work machine described in Japanese Laid-Open Patent Publication No. 2018-141360 A, a storage box for tools is placed in front right of a revolving body. The storage box is disposed below a walkway through which the operator passes, and a step to the walkway is disposed in front of the storage box.SUMMARY

[0005] However, in the structure illustrated in the above patent document, since only a step is disposed in front of the storage box, there is no place to put a storage item at one's feet when the cover of the storage box is opened, and it is necessary to temporarily move the storage item to another place.

[0006] The present disclosure allows to provide a work machine that can allocate a workspace in which storage items removed from the storage box can be placed.

[0007] A work machine according to a first aspect of the present disclosure includes a traveling body and a revolving body. The revolving body includes a revolving frame, a flat surface, and a storage box. The revolving frame is rotatably disposed above the traveling body. The flat surface is disposed on the revolving frame. The storage box is disposed adjacent to the flat surface. The storage box includes a movable shelf.

[0008] The aspects of the present disclosure allow to provide a work machine that can allocate a workspace in which storage items removed from the storage box can be placed.BRIEF DESCRIPTION OF DRAWINGS

[0009] Referring now to the attached drawings which form a part of this original disclosure, an illustrative embodiment is shown.

[0010] FIG. 1 is a perspective view illustrating a hydraulic excavator according to an embodiment of the present disclosure.

[0011] FIG. 2A is a partially enlarged view of the right front portion of a revolving body of a hydraulic excavator according to an embodiment of the present disclosure.

[0012] FIG. 2B is a perspective view illustrating a state in which a cover is opened from a storage box of FIG. 2A.

[0013] FIG. 2C is a perspective view illustrating the vicinity of the storage box in FIG. 2A.

[0014] FIG. 3A is a perspective view from the rear direction side, illustrating the vicinity of the storage box of the hydraulic excavator according to an embodiment of the present disclosure.

[0015] FIG. 3B is an enlarged view of a section B in FIG. 3A.

[0016] FIG. 4A is a view illustrating the internal configuration of the storage box of the hydraulic excavator according to an embodiment of the present disclosure.

[0017] FIG. 4B is an enlarged view of a section C in FIG. 4A.

[0018] FIG. 5A, FIG. 5B, FIG. 5C, FIG. 5D and FIG. 5E are views illustrating the removal of a tool box and a pail can from the storage box.

[0019] FIG. 6 is a view illustrating a state in which a tool bag is removed from the storage box in FIG. 4A and a shelf is rotated upward.

[0020] FIG. 7A is a perspective view illustrating a state in which the pail can removed from the storage box is placed on the workspace and the tool box is placed on the second step surface.

[0021] FIG. 7B is a perspective view illustrating a state in which the tool box removed from the storage box is placed on the workspace.

[0022] FIG. 8A is a perspective view from above illustrating a state in which the operator is refilling a reductant tank with a reductant.

[0023] FIG. 8B is a perspective view from forward direction illustrating a state in which the operator is refilling a reductant tank 18 with a reductant.DETAILED DESCRIPTION OF EMBODIMENT(S)

[0024] A hydraulic excavator as an example of a work machine according to the present disclosure will be described below with reference to the drawings.ConfigurationOutline of Hydraulic Excavator 1

[0025] FIG. 1 is a schematic view illustrating the configuration of a hydraulic excavator 1 of the present embodiment.

[0026] As illustrated in FIG. 1, the hydraulic excavator 1 (an example of a work machine) includes a traveling body 2 and a revolving body 3.

[0027] The traveling body 2 includes a pair of traveling devices 2a and 2b. The traveling devices 2a and 2b include tracks 2c and 2d, respectively. The driving force from an engine rotates a travel motor, and the tracks 2c and 2d are driven to cause the hydraulic excavator 1 to travel.

[0028] The revolving body 3 is disposed above the traveling body 2. The revolving body 3 is configured to be able to revolve with respect to the traveling body 2 about an axis along an up-down direction by a revolution motor (not illustrated). A swing machinery is disposed in the revolving body 3. A swing circle is disposed in the traveling body 2 and is engaged with the output pinion of the swing machinery. The rotational driving of the revolution motor is decelerated by the swing machinery (not illustrated) and output from the output pinion. As a result, the swing machinery rotates inside or outside the swing circle, thereby causing the revolving body 3 to rotate with respect to the traveling body 2.

[0029] The revolving body 3 includes a revolving frame 11, a cab 12, a work implement 13, an engine room 14, a walkway 15, handrails 16a and 16b, a storage box 17, and the reductant tank 18 (in FIG. 8A below).

[0030] The revolving frame 11 is disposed above the traveling body 2, and is a frame that can revolve with respect to the traveling body 2. The cab 12 is provided in the front left position of the revolving frame 11. The cab 12 is provided as an operator seat on which the operator sits during operation. Inside the cab 12, the operator seat, an operation device for operating the work implement 13, a display device, or the like are disposed.

[0031] In the present embodiment, the front, rear, left, and right directions of the hydraulic excavator 1 will be described with reference to the operator seat inside the cab 12. The direction in which the operator seat faces the front face is referred to as a forward direction Xf, and the direction opposing the forward direction is referred to as a rear direction Xb. The right and left directions in which the operator seat faces the front face are referred to as a right direction Yr and a left direction Y1, respectively.

[0032] The work implement 13 is attached to the front center position of the revolving frame 11. The work implement 13 includes a boom 21, an arm 22, and a bucket 23, as illustrated in FIG. 1. The base end portion of the boom 21 is rotatably coupled to the revolving frame 11. The tip end portion of the boom 21 is rotatably coupled to the base end portion of the arm 22. The tip end portion of the arm 22 is rotatably coupled to the bucket 23. The bucket 23 is attached to the arm 22 and includes an opening that can point toward the cab 12 (rearward). The hydraulic excavator 1 in which the bucket 23 is attached in this direction, is called a backhoe.

[0033] Hydraulic cylinders 24 to 26 (a boom cylinder 24, an arm cylinder 25, and a bucket cylinder 26) are disposed to correspond to the boom 21, the arm 22, and the bucket 23, respectively. By driving these hydraulic cylinders 24 to 26, the work implement 13 is driven. Thus, a work such as excavation is performed.

[0034] The engine room 14 is disposed behind the cab 12 of the revolving body 3. The engine room 14 houses an engine, an exhaust gas post processing apparatus for the engine, a cooling unit for cooling the engine, and a hydraulic pump, or the like.Walkway 15, Handrails 16a and 16b

[0035] FIG. 2A is a partially enlarged view of the right front portion of the revolving body 3. The walkway 15 is provided for the operator to perform maintenance, or the like. The walkway 15 is provided in the revolving body 3. The walkway 15 is disposed on the revolving frame 11. As illustrated in FIG. 2A, the walkway 15 includes an entrance 15a on a right side surface 3a of the revolving body 3. The entrance 15a of the walkway 15 is disposed on the right side of the cab 12. The walkway 15 includes a first walkway section 31 and a second walkway section 32. The first walkway section 31 is disposed from the entrance 15a toward the rear. The first walkway section 31 is stepped. In the present embodiment, the first walkway section 31 includes a first step surface 31a (an example of a flat surface), a first stepped surface 31d, a second step surface 31b, a second stepped surface 31e, and a third step surface 31c.

[0036] The first step surface 31a, the second step surface 31b, and the third step surface 31c are disposed horizontally. The first step surface 31a, the second step surface 31b, and the third step surface 31c are disposed in this order from the bottom. The first step surface 31a, the second step surface 31b, and the third step surface 31c are disposed in this order from front to back. A step is provided between the first step surface 31a and the second step surface 31b. The first stepped surface 31d is disposed between the rear direction Xb side edge of the first step surface 31a and the forward direction Xf side edge of the second step surface 31b. The first stepped surface 31d is disposed perpendicular to the front-back direction. A step is provided between the second step surface 31b and the third step surface 31c. The second stepped surface 31e is disposed between the rear direction Xb side edge of the second step surface 31b and the forward direction Xf side edge of the third step surface 31c. The second stepped surface 31e is disposed perpendicular to the front-back direction.

[0037] The second walkway section 32 is disposed from the rear end of the first walkway section 31 toward the left direction Y1. The second walkway section 32 extends to the rear side of the cab 12, as illustrated in FIG. 1. The second walkway section 32 is disposed on the front side of the ceiling of the engine room 14.

[0038] The first step surface 31a of the first walkway section 31 forms the bottom surface of a workspace S. The workspace S is provided on the first step surface 31a.

[0039] The handrails 16a and 16b are disposed at the end of the first walkway section 31 of the walkway 15. The handrail 16a is disposed on the front side of the first step surface 31a of the first walkway section 31. The handrail 16b is disposed on the right side surface side of the first walkway section 31 along the first walkway section 31. The entrance 15a of the walkway 15 is formed between the right side surface side end of the handrail 16a and the front side end of the handrail 16b. Storage Box 17

[0040] The storage box 17 includes a cover 40, which can be opened and closed to store tools or the like used for maintenance. FIG. 2B is a view illustrating a state in which the cover 40 of the storage box 17 is opened from FIG. 2A. As illustrated in FIG. 2B, the storage box 17 stores a tool bag 91 and a pail can 92, or the like.

[0041] FIG. 2C is a perspective view of the vicinity of the storage box 17. In FIG. 2C, the handrails 16a and 16b are omitted. The storage box 17 is disposed adjacent to the left of the workspace S. FIG. 3A is a perspective view of the vicinity of the storage box 17 viewed from the rear direction Xb side. In FIG. 3A, the second step surface 31b and the reductant tank 18 are omitted.

[0042] The storage box 17 is disposed adjacent to the first step surface 31a. The storage box 17 is disposed facing the entrance 15a of the walkway 15 across the first step surface 31a. The storage box 17 includes a first side surface 41, a second side surface 42, a third side surface 43, a fourth side surface 44, a top surface 45, an inclined surface 46, a bottom surface 47 (FIG. 4A), and a shelf 48, as illustrated in FIGS. 2C and 3A.

[0043] The first side surface 41 faces the workspace S (first step surface 31a) as illustrated in FIG. 2C. The first side surface 41 is disposed perpendicular to the left-right direction. The second side surface 42 is disposed to face the first side surface 41. The second side surface 42 is disposed perpendicular to the left-right direction. The second side surface 42 is disposed on the left direction Y1 side of the first side surface 41. In the present specification, the term “perpendicular” or “vertical” does not have to be perpendicular or vertical in a strict sense, may include errors, and may be recognized as perpendicular or vertical under the normal social conventions. In the present specification, the term “horizontal” does not have to be horizontal in a strict sense, may include errors, and may be recognized as horizontal under the normal social conventions.

[0044] As illustrated in FIG. 2C, the third side surface 43 is disposed so as to connect the front end of the first side surface 41 and the front end of the second side surface 42. The third side surface 43 is disposed perpendicular to the front-back direction. As illustrated in FIG. 3A, the fourth side surface is disposed so as to connect the rear end of the first side surface 41 and the rear end of the second side surface 42. The fourth side surface 44 is disposed perpendicular to the front-back direction. The fourth side surface 44 is disposed to face the third side surface 43.

[0045] The top surface 45 is disposed so as to connect the top end of the second side surface 42, the top end of the third side surface 43, and the top end of the fourth side surface 44, as illustrated in FIG. 2C. The top surface 45 is disposed perpendicular to the up-down direction.

[0046] The inclined surface 46 is disposed between the first side surface 41 and the top surface 45. The inclined surface 46 is disposed so as to connect the right end of the first side surface 41 and the top end of the first side surface 41. The inclined surface 46 is inclined to be disposed downward toward the workspace S (first step surface 31a).

[0047] As illustrated in FIGS. 2C and 3A, the cover 40 is formed across the first side surface 41, the inclined surface 46, and the top surface 45. As illustrated in FIG. 3A, the left end of the cover 40 (opposite to the workspace S) is rotatably connected to the top end of the second side surface 42 by a hinge 49. Two hinges 49 are disposed side by side in the front-back direction.

[0048] A rod-shaped member 50 is attached to the cover 40 to maintain an open state. FIG. 3B is an enlarged view of the section B in FIG. 3A. The rod-shaped member 50 is disposed between the cover 40 and an inner surface 51. The rod-shaped member 50 is disposed obliquely with respect to the up-down direction. The rod-shaped member 50 is disposed so as to be inclined toward the left direction Y1 as it goes upward. The rod-shaped member 50 is disposed between the cover 40 and the inner surface 51. The inner surface 51 is disposed near the inside (rear side) of the third side surface 43. The inner surface 51 is disposed to face the third side surface 43. A first end portion 50a of the rod-shaped member 50 is bent backward and rotatably attached to a bracket 52 attached to an internal surface 40a of the cover 40. A second end portion 50b of the rod-shaped member 50 is bent forward and inserted into a through hole 53 formed in the inner surface 51.

[0049] The through hole 53 has a first end 53a and a second end 53b. The through hole 53 is formed horizontally from the first end 53a toward the right and then to the lower-right until the second end 53b. The first end 53a is formed in a concave shape toward downward. As illustrated in FIG. 3B, when the cover 40 is open, the second end portion 50b is disposed at the first end 53a of the through hole 53 and fits into the concave shape of the first end 53a. Thus, even when the operator releases his hand from the cover 40, the second end portion 50b does not move through the through hole 53, and the cover 40 can be kept open.

[0050] When the cover 40 is closed, the second end portion 50b of the rod-shaped member 50 can be released from the fitted state of the first end 53a in the concave shape by slightly lifting the cover 40. In this state, the second end portion 50b can move along the through hole 53 toward the second end 53b, so the cover 40 can be closed.

[0051] FIG. 4A is a view illustrating the internal configuration of the storage box 17 when viewed from an arrow A in FIG. 3A. In FIG. 4A, the third side surface 43 and the inner surface 51 are omitted. In FIG. 4A, the cover 40 in an open state is illustrated by a two-dot chain line. In FIG. 4A, the workspace S is illustrated by hatching. The workspace S is a space above the first step surface 31a as the bottom surface. As illustrated in FIG. 4A, the bottom surface 47 of the storage box 17 is disposed below the first step surface 31a. Thus, a part of the storage box 17 is buried in the revolving frame 11. Thus, the length of a storage box 71 in the up-down direction can be increased, and it is possible to store a long object in the storage box 17 in the up-down direction.

[0052] The shelf 48 is disposed inside the storage box 17 and is movable, as illustrated in FIG. 4A. As illustrated in FIGS. 3A and 4A, the tool bag 91 is arranged on the shelf 48. The pail can 92 is placed under the shelf 48. The pail can 92 is placed on the bottom surface 47, as illustrated in FIG. 4A. In FIG. 4A, the shelf 48 in a horizontal state is illustrated as a solid line, and the shelf 48 in a vertical state rotated upward is illustrated as a two-dot chain line.

[0053] FIG. 4B is an enlarged view of the section C in FIG. 4A. As illustrated in FIG. 4B, a support projection 54 projects toward the right direction Yr inside the second side surface 42.

[0054] Although not illustrated, the support projection 54 is provided at each of two locations in the front-back direction. The shelf 48 is connected to the support projection 54 via a hinge 55. The hinge 55 is attached to the lower side of the left direction Y1 side edge of the shelf 48. Thus, the shelf 48 is configured such that the right direction Yr side edge can rotate in the up-down direction with the left direction Y1 side edge as the center. In the upwardly rotated state, the shelf 48 is disposed in the vertical state along the second side surface 42.

[0055] The shelf 48 is configured such that the horizontal state and the upwardly rotated vertical state can be each maintained. As illustrated in FIGS. 3B and 4B, the shelf 48 includes a main body 61 and a projecting member 62. The main body 61 has a box shape on which, for example, the tool bag 91 is placed. The projecting member 62 projects from the main body 61 toward the forward direction Xf. The projecting member 62 has a cylindrical shape.

[0056] A lower side clip member 63 is disposed on the inner surface 51 via a bracket 64. As illustrated in FIG. 3B, the bracket 64 is disposed on the inner surface 51. The lower side clip member 63 is fixed to the bracket 64. The lower side clip member 63 is an elastic member. As illustrated in FIG. 4B, the lower side clip member 63 has an opening 63a toward upward.

[0057] When the shelf 48 rotates downward to become horizontal, along with the downward rotation of the main body 61, the projecting member 62 also rotates downward and is inserted from the opening 63a into the lower side clip member 63, and is sandwiched in the lower side clip member 63. The lower side clip member 63 elastically holds the projecting member 62 inserted inside. Thus, the shelf 48 can be held horizontally.

[0058] An upper side clip member 65 is fixed to the internal surface of the third side surface 43. The upper side clip member 65 has the same shape as the lower side clip member 63. The upper side clip member 65 has an opening 65a toward the right direction Yr.

[0059] When the shelf 48 rotates upward to become vertical, along with the upward rotation of the main body 61, the projecting member 62 also rotates upward and is inserted from the opening 65a into the upper side clip member 65, and is sandwiched in the upper side clip member 65. The upper side clip member 65 elastically holds the projecting member 62 inserted inside. Thus, the shelf 48 can be held vertically.

[0060] The removal of the tool bag 91 and the pail can 92 from the storage box 17 will be described below. FIGS. 5A to 5E are views illustrating the removal of the tool bag 91 and the pail can 92.

[0061] As illustrated in FIG. 5A, the cover 40 of the storage box 17 is open. The second end portion 50b of the rod-shaped member 50 is fitted into the concave shape of the first end 53a of the through hole 53, and the cover 40 is kept open.

[0062] Next, as illustrated in FIG. 5B, the tool bag 91 placed on the shelf 48 is removed from the storage box 17. The horizontal state of the shelf 48 is maintained, with the projecting member 62 inserted into the lower side clip member 63.

[0063] Next, the projecting member 62 of the shelf 48 is removed from the inside of the lower side clip member 63, and the shelf 48 is rotated upward (see FIG. 5C). FIG. 6 is a view illustrating a state in which the shelf 48 is rotated upward from FIG. 4A. As illustrated in FIG. 6, by inserting the projecting member 62 into the upper side clip member 65 through the opening 65a, the projecting member 62 is held by the upper side clip member 65, and the shelf 48 is held in an upwardly rotated state.

[0064] Next, as illustrated in FIG. 5D, the pail can 92 is removed. The removed pail can 92 can be placed on the first step surface 31a, as illustrated in FIG. 5E. Since the cover 40 is formed across the top surface 45, the inclined surface 46, and the first side surface 41, the opening when the cover 40 is open is large, and thus the pail can 92 is easily removed, as illustrated in FIG. 5D.

[0065] As illustrated in FIG. 7A, an operator H can place the pail can 92 removed from the storage box 17 on the first step surface 31a of the workspace S. In the present embodiment, the area of the first step surface 31a can be enlarged, so the pail can 92 can be placed on the first step surface 31a, which is the bottom surface of the workspace S, together with an operator P. In FIG. 7A, the tool bag 91 is placed on the second step surface 31b, but may be placed on the second step surface 31b as illustrated in FIG. 7B.Reductant Tank 18

[0066] The reductant tank 18 is disposed below the second step surface 31b. The reductant tank 18 is disposed adjacent to the first step surface 31a. As illustrated in FIG. 2C, a cover 70 is disposed above the reductant tank 18. The cover70 is formed across the second step surface 31b and the first stepped surface 31d. As illustrated in FIG. 2C, the front side of the cover 70 rotates in the up-down direction around the edge of the rear direction Xb side. FIG. 8A is a perspective view illustrating a state in which the cover 70 is open.

[0067] FIG. 8A is a perspective view from above illustrating a state in which the operator is refilling the reductant tank 18 with the reductant. As illustrated in FIG. 8A, a refill port 18a of the reductant tank 18 faces the workspace S (first step surface 31a) side. The operator H holds a refill tank 93 and refills the reductant from the workspace S to the refill port 18a. At this time, as illustrated in FIG. 8B viewed from the forward direction Xf side, the inclined surface 46 is provided between the first side surface 41 and the top surface 45 of the storage box 17, and thus a knee H1 of the operator H does not interfere with the storage box 17, and the refilling work is facilitated.Features(1)

[0068] The hydraulic excavator 1 according to the present embodiment includes the traveling body 2, and the revolving body 3. The revolving body 3 includes the revolving frame 11, the first step surface 31a, and the storage box 17. The revolving frame 11 is rotatably disposed above the traveling body 2. The first step surface 31a is disposed on the revolving frame 11. The storage box 17 is disposed adjacent to the first step surface 31a. The storage box 17 includes a movable shelf 48.

[0069] By arranging the movable shelf 48 in the storage box 17 in this way, storage items can be arranged in the up-down direction, and the area of the storage box 17 can be reduced.

[0070] Thus, the first step surface 31a can be disposed widely adjacent to the storage box 17, and as illustrated in FIGS. 8A and 8B, the space for placing the storage items (e.g., tool bag 91 or pail can 92) can be allocated on the first step surface 31a. (2)

[0071] In the hydraulic excavator 1 according to the present embodiment, the storage box 17 includes the top surface 45, and an inclined surface 46 disposed on the first step surface 31a side of the top surface 45. The inclined surface 46 is inclined downward toward the first step surface 31a side.

[0072] By providing the inclined surface 46 in the storage box 17 in this way, the corner is not provided on the first step surface 31a side, the knee H1 of the operator H does not interfere with the storage box 17, as illustrated in FIG. 8B, thereby facilitating the refilling work of the reductant.(3)

[0073] In the hydraulic excavator 1 according to the present embodiment, the storage box 17 further includes the first side surface 41. The first side surface 41 faces the first step surface 31a. The inclined surface 46 is disposed between the first side surface 41 and the top surface 45. The storage box 17 includes the openable cover 40 formed across the first side surface 4, the inclined surface 46, and the top surface 45.

[0074] In this manner, the cover 40 is formed across the top surface 45, the inclined surface 46, and the first side surface 41, so the opening when the cover 40 is open is large, and thus the pail can 92 is easily removed, as illustrated in FIG. 5D.(4)

[0075] In the hydraulic excavator 1 according to the present embodiment, the storage box 17 includes the first side surface 41, and the second side surface 42. The first side surface 41 faces the first step surface 31a. The second side surface 42 is opposed to the first side surface 41, and is disposed on a side opposite to the first step surface 31a with respect to the first side surface 41. The shelf 48 is rotatably attached to the second side surface 42 via the hinge 49.

[0076] This allows the shelf 48 to rotate from a horizontal state in which an object can be placed to a vertical state in which an object under the shelf 48 can be removed.(5)

[0077] In the hydraulic excavator 1 according to the present embodiment, the storage box 17 includes the bottom surface 47 disposed below the first step surface 31a of the workspace S.

[0078] Thus, a part of the storage box 17 can be buried in the revolving frame 11, so the length of the storage box 17 in the up-down direction can be increased, thereby storing a long object such as the pail can 92 in the storage box 17 in the up-down direction(6)

[0079] The hydraulic excavator 1 according to the present embodiment further includes the walkway 15 including the first step surface 31a configured to serve as a step. The storage box 17 is disposed adjacent to the walkway 15.

[0080] The storage box is not installed on the walkway 15 in this way, so the operator can pass through the walkway 15 even when the cover 40 of the storage box 17 is open.(7)

[0081] In the hydraulic excavator 1 according to the present embodiment, the entrance 15a to the first step surface 31a is disposed on the right side surface 3a side of the revolving body 3. The storage box 17 is disposed facing the entrance 15a across the first step surface 31a. The walkway 15 extends from the first step surface 31a toward the rear of the revolving body 3.

[0082] Thus, the operator can move to the rear of the revolving body 3 through the walkway 15 even when the cover 40 of the storage box 17 is open.(8)

[0083] The hydraulic excavator 1 according to the present embodiment includes the reductant tank 18 and the cover 70. The reductant tank 18 is disposed adjacent to the first step surface 31a. The cover 70 covers the reductant tank 18 and is openable. The reductant tank 18 includes the refill port 18a for the reductant, the refill port 18a facing the first step surface 31a side.

[0084] Thus, as illustrated in FIG. 8B, when the reductant is refilled, the knee H1 of the operator H does not interfere with the storage box 17, as illustrated in FIG. 8B, thereby facilitating the refilling work.Other Embodiments

[0085] Although one embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist of the invention.(A)

[0086] In the above embodiment, the tool bag 91 and the pail can 92 are used described as examples of the objects to be stored in the storage box 17, but other objects may be used.(B)

[0087] In the above embodiment, only one shelf 48 is provided in the storage box 17, but two or more shelves 48 may be provided.(C)

[0088] In the above embodiment, the entrance 15a to the walkway 15 faces the workspace S, and the workspace S is provided immediately after the entrance 15a. However, the workspace S may not be provided directly after the entrance 15a, but, for example, may be provided on the second step surface 31b, and the storage box 17 may be provided adjacent to the workspace S.(D)

[0089] In the above embodiment, the entrance 15a to the walkway 15 is provided on the right side surface 3a side of the revolving body 3, but may not be limited thereto, and may be provided in front of the workspace S.(E)

[0090] In the above embodiment, the traveling body 2 travels with the tracks 2c and 2d, but may have wheels and travel with these wheels.(F)

[0091] In the above embodiment, the first step surface 31a, together with the first stepped surface 31d, the second step surface 31b, the second stepped surface 31e, and the third step surface 31c, constitutes a part of the stairs, but may not be a part of the stairs, and may be a flat surface constituting the bottom surface of the workspace S.

[0092] The present disclosure can take the effect of allocating a workspace in which storage items removed from the storage box can be placed, which becomes useful for work machines, or the like.

Examples

Embodiment Construction

[0024]A hydraulic excavator as an example of a work machine according to the present disclosure will be described below with reference to the drawings.

Configuration

Outline of Hydraulic Excavator 1

[0025]FIG. 1 is a schematic view illustrating the configuration of a hydraulic excavator 1 of the present embodiment.

[0026]As illustrated in FIG. 1, the hydraulic excavator 1 (an example of a work machine) includes a traveling body 2 and a revolving body 3.

[0027]The traveling body 2 includes a pair of traveling devices 2a and 2b. The traveling devices 2a and 2b include tracks 2c and 2d, respectively. The driving force from an engine rotates a travel motor, and the tracks 2c and 2d are driven to cause the hydraulic excavator 1 to travel.

[0028]The revolving body 3 is disposed above the traveling body 2. The revolving body 3 is configured to be able to revolve with respect to the traveling body 2 about an axis along an up-down direction by a revolution motor (not illustrated). A swing machiner...

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application is a U.S. National stage application of International Application No. PCT / JP2024 / 006616, filed on Feb. 22, 2024. This U.S. National stage application claims priority under 35 U.S.C. § 119(a) to Japanese Patent Application No. 2023-031808, filed in Japan on Mar. 2, 2023. The entire contents of Japanese Patent Application No. 2023-031808 is hereby incorporated herein by reference.BACKGROUNDTechnical Field

[0002] The present invention relates to a work machine.BACKGROUND ART

[0003] A work machine is provided with a storage box in which tools or the like used by an operator for maintenance, or the like are stored (e.g., see Japanese Laid-Open Patent Publication No. 2018-141360 A).

[0004] For example, in the work machine described in Japanese Laid-Open Patent Publication No. 2018-141360 A, a storage box for tools is placed in front right of a revolving body. The storage box is disposed below a walkway through which the operator passes, and a step to the walkway is disposed in front of the storage box.SUMMARY

[0005] However, in the structure illustrated in the above patent document, since only a step is disposed in front of the storage box, there is no place to put a storage item at one's feet when the cover of the storage box is opened, and it is necessary to temporarily move the storage item to another place.

[0006] The present disclosure allows to provide a work machine that can allocate a workspace in which storage items removed from the storage box can be placed.

[0007] A work machine according to a first aspect of the present disclosure includes a traveling body and a revolving body. The revolving body includes a revolving frame, a flat surface, and a storage box. The revolving frame is rotatably disposed above the traveling body. The flat surface is disposed on the revolving frame. The storage box is disposed adjacent to the flat surface. The storage box includes a movable shelf.

[0008] The aspects of the present disclosure allow to provide a work machine that can allocate a workspace in which storage items removed from the storage box can be placed.BRIEF DESCRIPTION OF DRAWINGS

[0009] Referring now to the attached drawings which form a part of this original disclosure, an illustrative embodiment is shown.

[0010] FIG. 1 is a perspective view illustrating a hydraulic excavator according to an embodiment of the present disclosure.

[0011] FIG. 2A is a partially enlarged view of the right front portion of a revolving body of a hydraulic excavator according to an embodiment of the present disclosure.

[0012] FIG. 2B is a perspective view illustrating a state in which a cover is opened from a storage box of FIG. 2A.

[0013] FIG. 2C is a perspective view illustrating the vicinity of the storage box in FIG. 2A.

[0014] FIG. 3A is a perspective view from the rear direction side, illustrating the vicinity of the storage box of the hydraulic excavator according to an embodiment of the present disclosure.

[0015] FIG. 3B is an enlarged view of a section B in FIG. 3A.

[0016] FIG. 4A is a view illustrating the internal configuration of the storage box of the hydraulic excavator according to an embodiment of the present disclosure.

[0017] FIG. 4B is an enlarged view of a section C in FIG. 4A.

[0018] FIG. 5A, FIG. 5B, FIG. 5C, FIG. 5D and FIG. 5E are views illustrating the removal of a tool box and a pail can from the storage box.

[0019] FIG. 6 is a view illustrating a state in which a tool bag is removed from the storage box in FIG. 4A and a shelf is rotated upward.

[0020] FIG. 7A is a perspective view illustrating a state in which the pail can removed from the storage box is placed on the workspace and the tool box is placed on the second step surface.

[0021] FIG. 7B is a perspective view illustrating a state in which the tool box removed from the storage box is placed on the workspace.

[0022] FIG. 8A is a perspective view from above illustrating a state in which the operator is refilling a reductant tank with a reductant.

[0023] FIG. 8B is a perspective view from forward direction illustrating a state in which the operator is refilling a reductant tank 18 with a reductant.DETAILED DESCRIPTION OF EMBODIMENT(S)

[0024] A hydraulic excavator as an example of a work machine according to the present disclosure will be described below with reference to the drawings.ConfigurationOutline of Hydraulic Excavator 1

[0025] FIG. 1 is a schematic view illustrating the configuration of a hydraulic excavator 1 of the present embodiment.

[0026] As illustrated in FIG. 1, the hydraulic excavator 1 (an example of a work machine) includes a traveling body 2 and a revolving body 3.

[0027] The traveling body 2 includes a pair of traveling devices 2a and 2b. The traveling devices 2a and 2b include tracks 2c and 2d, respectively. The driving force from an engine rotates a travel motor, and the tracks 2c and 2d are driven to cause the hydraulic excavator 1 to travel.

[0028] The revolving body 3 is disposed above the traveling body 2. The revolving body 3 is configured to be able to revolve with respect to the traveling body 2 about an axis along an up-down direction by a revolution motor (not illustrated). A swing machinery is disposed in the revolving body 3. A swing circle is disposed in the traveling body 2 and is engaged with the output pinion of the swing machinery. The rotational driving of the revolution motor is decelerated by the swing machinery (not illustrated) and output from the output pinion. As a result, the swing machinery rotates inside or outside the swing circle, thereby causing the revolving body 3 to rotate with respect to the traveling body 2.

[0029] The revolving body 3 includes a revolving frame 11, a cab 12, a work implement 13, an engine room 14, a walkway 15, handrails 16a and 16b, a storage box 17, and the reductant tank 18 (in FIG. 8A below).

[0030] The revolving frame 11 is disposed above the traveling body 2, and is a frame that can revolve with respect to the traveling body 2. The cab 12 is provided in the front left position of the revolving frame 11. The cab 12 is provided as an operator seat on which the operator sits during operation. Inside the cab 12, the operator seat, an operation device for operating the work implement 13, a display device, or the like are disposed.

[0031] In the present embodiment, the front, rear, left, and right directions of the hydraulic excavator 1 will be described with reference to the operator seat inside the cab 12. The direction in which the operator seat faces the front face is referred to as a forward direction Xf, and the direction opposing the forward direction is referred to as a rear direction Xb. The right and left directions in which the operator seat faces the front face are referred to as a right direction Yr and a left direction Y1, respectively.

[0032] The work implement 13 is attached to the front center position of the revolving frame 11. The work implement 13 includes a boom 21, an arm 22, and a bucket 23, as illustrated in FIG. 1. The base end portion of the boom 21 is rotatably coupled to the revolving frame 11. The tip end portion of the boom 21 is rotatably coupled to the base end portion of the arm 22. The tip end portion of the arm 22 is rotatably coupled to the bucket 23. The bucket 23 is attached to the arm 22 and includes an opening that can point toward the cab 12 (rearward). The hydraulic excavator 1 in which the bucket 23 is attached in this direction, is called a backhoe.

[0033] Hydraulic cylinders 24 to 26 (a boom cylinder 24, an arm cylinder 25, and a bucket cylinder 26) are disposed to correspond to the boom 21, the arm 22, and the bucket 23, respectively. By driving these hydraulic cylinders 24 to 26, the work implement 13 is driven. Thus, a work such as excavation is performed.

[0034] The engine room 14 is disposed behind the cab 12 of the revolving body 3. The engine room 14 houses an engine, an exhaust gas post processing apparatus for the engine, a cooling unit for cooling the engine, and a hydraulic pump, or the like.Walkway 15, Handrails 16a and 16b

[0035] FIG. 2A is a partially enlarged view of the right front portion of the revolving body 3. The walkway 15 is provided for the operator to perform maintenance, or the like. The walkway 15 is provided in the revolving body 3. The walkway 15 is disposed on the revolving frame 11. As illustrated in FIG. 2A, the walkway 15 includes an entrance 15a on a right side surface 3a of the revolving body 3. The entrance 15a of the walkway 15 is disposed on the right side of the cab 12. The walkway 15 includes a first walkway section 31 and a second walkway section 32. The first walkway section 31 is disposed from the entrance 15a toward the rear. The first walkway section 31 is stepped. In the present embodiment, the first walkway section 31 includes a first step surface 31a (an example of a flat surface), a first stepped surface 31d, a second step surface 31b, a second stepped surface 31e, and a third step surface 31c.

[0036] The first step surface 31a, the second step surface 31b, and the third step surface 31c are disposed horizontally. The first step surface 31a, the second step surface 31b, and the third step surface 31c are disposed in this order from the bottom. The first step surface 31a, the second step surface 31b, and the third step surface 31c are disposed in this order from front to back. A step is provided between the first step surface 31a and the second step surface 31b. The first stepped surface 31d is disposed between the rear direction Xb side edge of the first step surface 31a and the forward direction Xf side edge of the second step surface 31b. The first stepped surface 31d is disposed perpendicular to the front-back direction. A step is provided between the second step surface 31b and the third step surface 31c. The second stepped surface 31e is disposed between the rear direction Xb side edge of the second step surface 31b and the forward direction Xf side edge of the third step surface 31c. The second stepped surface 31e is disposed perpendicular to the front-back direction.

[0037] The second walkway section 32 is disposed from the rear end of the first walkway section 31 toward the left direction Y1. The second walkway section 32 extends to the rear side of the cab 12, as illustrated in FIG. 1. The second walkway section 32 is disposed on the front side of the ceiling of the engine room 14.

[0038] The first step surface 31a of the first walkway section 31 forms the bottom surface of a workspace S. The workspace S is provided on the first step surface 31a.

[0039] The handrails 16a and 16b are disposed at the end of the first walkway section 31 of the walkway 15. The handrail 16a is disposed on the front side of the first step surface 31a of the first walkway section 31. The handrail 16b is disposed on the right side surface side of the first walkway section 31 along the first walkway section 31. The entrance 15a of the walkway 15 is formed between the right side surface side end of the handrail 16a and the front side end of the handrail 16b. Storage Box 17

[0040] The storage box 17 includes a cover 40, which can be opened and closed to store tools or the like used for maintenance. FIG. 2B is a view illustrating a state in which the cover 40 of the storage box 17 is opened from FIG. 2A. As illustrated in FIG. 2B, the storage box 17 stores a tool bag 91 and a pail can 92, or the like.

[0041] FIG. 2C is a perspective view of the vicinity of the storage box 17. In FIG. 2C, the handrails 16a and 16b are omitted. The storage box 17 is disposed adjacent to the left of the workspace S. FIG. 3A is a perspective view of the vicinity of the storage box 17 viewed from the rear direction Xb side. In FIG. 3A, the second step surface 31b and the reductant tank 18 are omitted.

[0042] The storage box 17 is disposed adjacent to the first step surface 31a. The storage box 17 is disposed facing the entrance 15a of the walkway 15 across the first step surface 31a. The storage box 17 includes a first side surface 41, a second side surface 42, a third side surface 43, a fourth side surface 44, a top surface 45, an inclined surface 46, a bottom surface 47 (FIG. 4A), and a shelf 48, as illustrated in FIGS. 2C and 3A.

[0043] The first side surface 41 faces the workspace S (first step surface 31a) as illustrated in FIG. 2C. The first side surface 41 is disposed perpendicular to the left-right direction. The second side surface 42 is disposed to face the first side surface 41. The second side surface 42 is disposed perpendicular to the left-right direction. The second side surface 42 is disposed on the left direction Y1 side of the first side surface 41. In the present specification, the term “perpendicular” or “vertical” does not have to be perpendicular or vertical in a strict sense, may include errors, and may be recognized as perpendicular or vertical under the normal social conventions. In the present specification, the term “horizontal” does not have to be horizontal in a strict sense, may include errors, and may be recognized as horizontal under the normal social conventions.

[0044] As illustrated in FIG. 2C, the third side surface 43 is disposed so as to connect the front end of the first side surface 41 and the front end of the second side surface 42. The third side surface 43 is disposed perpendicular to the front-back direction. As illustrated in FIG. 3A, the fourth side surface is disposed so as to connect the rear end of the first side surface 41 and the rear end of the second side surface 42. The fourth side surface 44 is disposed perpendicular to the front-back direction. The fourth side surface 44 is disposed to face the third side surface 43.

[0045] The top surface 45 is disposed so as to connect the top end of the second side surface 42, the top end of the third side surface 43, and the top end of the fourth side surface 44, as illustrated in FIG. 2C. The top surface 45 is disposed perpendicular to the up-down direction.

[0046] The inclined surface 46 is disposed between the first side surface 41 and the top surface 45. The inclined surface 46 is disposed so as to connect the right end of the first side surface 41 and the top end of the first side surface 41. The inclined surface 46 is inclined to be disposed downward toward the workspace S (first step surface 31a).

[0047] As illustrated in FIGS. 2C and 3A, the cover 40 is formed across the first side surface 41, the inclined surface 46, and the top surface 45. As illustrated in FIG. 3A, the left end of the cover 40 (opposite to the workspace S) is rotatably connected to the top end of the second side surface 42 by a hinge 49. Two hinges 49 are disposed side by side in the front-back direction.

[0048] A rod-shaped member 50 is attached to the cover 40 to maintain an open state. FIG. 3B is an enlarged view of the section B in FIG. 3A. The rod-shaped member 50 is disposed between the cover 40 and an inner surface 51. The rod-shaped member 50 is disposed obliquely with respect to the up-down direction. The rod-shaped member 50 is disposed so as to be inclined toward the left direction Y1 as it goes upward. The rod-shaped member 50 is disposed between the cover 40 and the inner surface 51. The inner surface 51 is disposed near the inside (rear side) of the third side surface 43. The inner surface 51 is disposed to face the third side surface 43. A first end portion 50a of the rod-shaped member 50 is bent backward and rotatably attached to a bracket 52 attached to an internal surface 40a of the cover 40. A second end portion 50b of the rod-shaped member 50 is bent forward and inserted into a through hole 53 formed in the inner surface 51.

[0049] The through hole 53 has a first end 53a and a second end 53b. The through hole 53 is formed horizontally from the first end 53a toward the right and then to the lower-right until the second end 53b. The first end 53a is formed in a concave shape toward downward. As illustrated in FIG. 3B, when the cover 40 is open, the second end portion 50b is disposed at the first end 53a of the through hole 53 and fits into the concave shape of the first end 53a. Thus, even when the operator releases his hand from the cover 40, the second end portion 50b does not move through the through hole 53, and the cover 40 can be kept open.

[0050] When the cover 40 is closed, the second end portion 50b of the rod-shaped member 50 can be released from the fitted state of the first end 53a in the concave shape by slightly lifting the cover 40. In this state, the second end portion 50b can move along the through hole 53 toward the second end 53b, so the cover 40 can be closed.

[0051] FIG. 4A is a view illustrating the internal configuration of the storage box 17 when viewed from an arrow A in FIG. 3A. In FIG. 4A, the third side surface 43 and the inner surface 51 are omitted. In FIG. 4A, the cover 40 in an open state is illustrated by a two-dot chain line. In FIG. 4A, the workspace S is illustrated by hatching. The workspace S is a space above the first step surface 31a as the bottom surface. As illustrated in FIG. 4A, the bottom surface 47 of the storage box 17 is disposed below the first step surface 31a. Thus, a part of the storage box 17 is buried in the revolving frame 11. Thus, the length of a storage box 71 in the up-down direction can be increased, and it is possible to store a long object in the storage box 17 in the up-down direction.

[0052] The shelf 48 is disposed inside the storage box 17 and is movable, as illustrated in FIG. 4A. As illustrated in FIGS. 3A and 4A, the tool bag 91 is arranged on the shelf 48. The pail can 92 is placed under the shelf 48. The pail can 92 is placed on the bottom surface 47, as illustrated in FIG. 4A. In FIG. 4A, the shelf 48 in a horizontal state is illustrated as a solid line, and the shelf 48 in a vertical state rotated upward is illustrated as a two-dot chain line.

[0053] FIG. 4B is an enlarged view of the section C in FIG. 4A. As illustrated in FIG. 4B, a support projection 54 projects toward the right direction Yr inside the second side surface 42.

[0054] Although not illustrated, the support projection 54 is provided at each of two locations in the front-back direction. The shelf 48 is connected to the support projection 54 via a hinge 55. The hinge 55 is attached to the lower side of the left direction Y1 side edge of the shelf 48. Thus, the shelf 48 is configured such that the right direction Yr side edge can rotate in the up-down direction with the left direction Y1 side edge as the center. In the upwardly rotated state, the shelf 48 is disposed in the vertical state along the second side surface 42.

[0055] The shelf 48 is configured such that the horizontal state and the upwardly rotated vertical state can be each maintained. As illustrated in FIGS. 3B and 4B, the shelf 48 includes a main body 61 and a projecting member 62. The main body 61 has a box shape on which, for example, the tool bag 91 is placed. The projecting member 62 projects from the main body 61 toward the forward direction Xf. The projecting member 62 has a cylindrical shape.

[0056] A lower side clip member 63 is disposed on the inner surface 51 via a bracket 64. As illustrated in FIG. 3B, the bracket 64 is disposed on the inner surface 51. The lower side clip member 63 is fixed to the bracket 64. The lower side clip member 63 is an elastic member. As illustrated in FIG. 4B, the lower side clip member 63 has an opening 63a toward upward.

[0057] When the shelf 48 rotates downward to become horizontal, along with the downward rotation of the main body 61, the projecting member 62 also rotates downward and is inserted from the opening 63a into the lower side clip member 63, and is sandwiched in the lower side clip member 63. The lower side clip member 63 elastically holds the projecting member 62 inserted inside. Thus, the shelf 48 can be held horizontally.

[0058] An upper side clip member 65 is fixed to the internal surface of the third side surface 43. The upper side clip member 65 has the same shape as the lower side clip member 63. The upper side clip member 65 has an opening 65a toward the right direction Yr.

[0059] When the shelf 48 rotates upward to become vertical, along with the upward rotation of the main body 61, the projecting member 62 also rotates upward and is inserted from the opening 65a into the upper side clip member 65, and is sandwiched in the upper side clip member 65. The upper side clip member 65 elastically holds the projecting member 62 inserted inside. Thus, the shelf 48 can be held vertically.

[0060] The removal of the tool bag 91 and the pail can 92 from the storage box 17 will be described below. FIGS. 5A to 5E are views illustrating the removal of the tool bag 91 and the pail can 92.

[0061] As illustrated in FIG. 5A, the cover 40 of the storage box 17 is open. The second end portion 50b of the rod-shaped member 50 is fitted into the concave shape of the first end 53a of the through hole 53, and the cover 40 is kept open.

[0062] Next, as illustrated in FIG. 5B, the tool bag 91 placed on the shelf 48 is removed from the storage box 17. The horizontal state of the shelf 48 is maintained, with the projecting member 62 inserted into the lower side clip member 63.

[0063] Next, the projecting member 62 of the shelf 48 is removed from the inside of the lower side clip member 63, and the shelf 48 is rotated upward (see FIG. 5C). FIG. 6 is a view illustrating a state in which the shelf 48 is rotated upward from FIG. 4A. As illustrated in FIG. 6, by inserting the projecting member 62 into the upper side clip member 65 through the opening 65a, the projecting member 62 is held by the upper side clip member 65, and the shelf 48 is held in an upwardly rotated state.

[0064] Next, as illustrated in FIG. 5D, the pail can 92 is removed. The removed pail can 92 can be placed on the first step surface 31a, as illustrated in FIG. 5E. Since the cover 40 is formed across the top surface 45, the inclined surface 46, and the first side surface 41, the opening when the cover 40 is open is large, and thus the pail can 92 is easily removed, as illustrated in FIG. 5D.

[0065] As illustrated in FIG. 7A, an operator H can place the pail can 92 removed from the storage box 17 on the first step surface 31a of the workspace S. In the present embodiment, the area of the first step surface 31a can be enlarged, so the pail can 92 can be placed on the first step surface 31a, which is the bottom surface of the workspace S, together with an operator P. In FIG. 7A, the tool bag 91 is placed on the second step surface 31b, but may be placed on the second step surface 31b as illustrated in FIG. 7B.Reductant Tank 18

[0066] The reductant tank 18 is disposed below the second step surface 31b. The reductant tank 18 is disposed adjacent to the first step surface 31a. As illustrated in FIG. 2C, a cover 70 is disposed above the reductant tank 18. The cover70 is formed across the second step surface 31b and the first stepped surface 31d. As illustrated in FIG. 2C, the front side of the cover 70 rotates in the up-down direction around the edge of the rear direction Xb side. FIG. 8A is a perspective view illustrating a state in which the cover 70 is open.

[0067] FIG. 8A is a perspective view from above illustrating a state in which the operator is refilling the reductant tank 18 with the reductant. As illustrated in FIG. 8A, a refill port 18a of the reductant tank 18 faces the workspace S (first step surface 31a) side. The operator H holds a refill tank 93 and refills the reductant from the workspace S to the refill port 18a. At this time, as illustrated in FIG. 8B viewed from the forward direction Xf side, the inclined surface 46 is provided between the first side surface 41 and the top surface 45 of the storage box 17, and thus a knee H1 of the operator H does not interfere with the storage box 17, and the refilling work is facilitated.Features(1)

[0068] The hydraulic excavator 1 according to the present embodiment includes the traveling body 2, and the revolving body 3. The revolving body 3 includes the revolving frame 11, the first step surface 31a, and the storage box 17. The revolving frame 11 is rotatably disposed above the traveling body 2. The first step surface 31a is disposed on the revolving frame 11. The storage box 17 is disposed adjacent to the first step surface 31a. The storage box 17 includes a movable shelf 48.

[0069] By arranging the movable shelf 48 in the storage box 17 in this way, storage items can be arranged in the up-down direction, and the area of the storage box 17 can be reduced.

[0070] Thus, the first step surface 31a can be disposed widely adjacent to the storage box 17, and as illustrated in FIGS. 8A and 8B, the space for placing the storage items (e.g., tool bag 91 or pail can 92) can be allocated on the first step surface 31a. (2)

[0071] In the hydraulic excavator 1 according to the present embodiment, the storage box 17 includes the top surface 45, and an inclined surface 46 disposed on the first step surface 31a side of the top surface 45. The inclined surface 46 is inclined downward toward the first step surface 31a side.

[0072] By providing the inclined surface 46 in the storage box 17 in this way, the corner is not provided on the first step surface 31a side, the knee H1 of the operator H does not interfere with the storage box 17, as illustrated in FIG. 8B, thereby facilitating the refilling work of the reductant.(3)

[0073] In the hydraulic excavator 1 according to the present embodiment, the storage box 17 further includes the first side surface 41. The first side surface 41 faces the first step surface 31a. The inclined surface 46 is disposed between the first side surface 41 and the top surface 45. The storage box 17 includes the openable cover 40 formed across the first side surface 4, the inclined surface 46, and the top surface 45.

[0074] In this manner, the cover 40 is formed across the top surface 45, the inclined surface 46, and the first side surface 41, so the opening when the cover 40 is open is large, and thus the pail can 92 is easily removed, as illustrated in FIG. 5D.(4)

[0075] In the hydraulic excavator 1 according to the present embodiment, the storage box 17 includes the first side surface 41, and the second side surface 42. The first side surface 41 faces the first step surface 31a. The second side surface 42 is opposed to the first side surface 41, and is disposed on a side opposite to the first step surface 31a with respect to the first side surface 41. The shelf 48 is rotatably attached to the second side surface 42 via the hinge 49.

[0076] This allows the shelf 48 to rotate from a horizontal state in which an object can be placed to a vertical state in which an object under the shelf 48 can be removed.(5)

[0077] In the hydraulic excavator 1 according to the present embodiment, the storage box 17 includes the bottom surface 47 disposed below the first step surface 31a of the workspace S.

[0078] Thus, a part of the storage box 17 can be buried in the revolving frame 11, so the length of the storage box 17 in the up-down direction can be increased, thereby storing a long object such as the pail can 92 in the storage box 17 in the up-down direction(6)

[0079] The hydraulic excavator 1 according to the present embodiment further includes the walkway 15 including the first step surface 31a configured to serve as a step. The storage box 17 is disposed adjacent to the walkway 15.

[0080] The storage box is not installed on the walkway 15 in this way, so the operator can pass through the walkway 15 even when the cover 40 of the storage box 17 is open.(7)

[0081] In the hydraulic excavator 1 according to the present embodiment, the entrance 15a to the first step surface 31a is disposed on the right side surface 3a side of the revolving body 3. The storage box 17 is disposed facing the entrance 15a across the first step surface 31a. The walkway 15 extends from the first step surface 31a toward the rear of the revolving body 3.

[0082] Thus, the operator can move to the rear of the revolving body 3 through the walkway 15 even when the cover 40 of the storage box 17 is open.(8)

[0083] The hydraulic excavator 1 according to the present embodiment includes the reductant tank 18 and the cover 70. The reductant tank 18 is disposed adjacent to the first step surface 31a. The cover 70 covers the reductant tank 18 and is openable. The reductant tank 18 includes the refill port 18a for the reductant, the refill port 18a facing the first step surface 31a side.

[0084] Thus, as illustrated in FIG. 8B, when the reductant is refilled, the knee H1 of the operator H does not interfere with the storage box 17, as illustrated in FIG. 8B, thereby facilitating the refilling work.Other Embodiments

[0085] Although one embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist of the invention.(A)

[0086] In the above embodiment, the tool bag 91 and the pail can 92 are used described as examples of the objects to be stored in the storage box 17, but other objects may be used.(B)

[0087] In the above embodiment, only one shelf 48 is provided in the storage box 17, but two or more shelves 48 may be provided.(C)

[0088] In the above embodiment, the entrance 15a to the walkway 15 faces the workspace S, and the workspace S is provided immediately after the entrance 15a. However, the workspace S may not be provided directly after the entrance 15a, but, for example, may be provided on the second step surface 31b, and the storage box 17 may be provided adjacent to the workspace S.(D)

[0089] In the above embodiment, the entrance 15a to the walkway 15 is provided on the right side surface 3a side of the revolving body 3, but may not be limited thereto, and may be provided in front of the workspace S.(E)

[0090] In the above embodiment, the traveling body 2 travels with the tracks 2c and 2d, but may have wheels and travel with these wheels.(F)

[0091] In the above embodiment, the first step surface 31a, together with the first stepped surface 31d, the second step surface 31b, the second stepped surface 31e, and the third step surface 31c, constitutes a part of the stairs, but may not be a part of the stairs, and may be a flat surface constituting the bottom surface of the workspace S.

[0092] The present disclosure can take the effect of allocating a workspace in which storage items removed from the storage box can be placed, which becomes useful for work machines, or the like.

Examples

Embodiment Construction

[0024]A hydraulic excavator as an example of a work machine according to the present disclosure will be described below with reference to the drawings.

Configuration

Outline of Hydraulic Excavator 1

[0025]FIG. 1 is a schematic view illustrating the configuration of a hydraulic excavator 1 of the present embodiment.

[0026]As illustrated in FIG. 1, the hydraulic excavator 1 (an example of a work machine) includes a traveling body 2 and a revolving body 3.

[0027]The traveling body 2 includes a pair of traveling devices 2a and 2b. The traveling devices 2a and 2b include tracks 2c and 2d, respectively. The driving force from an engine rotates a travel motor, and the tracks 2c and 2d are driven to cause the hydraulic excavator 1 to travel.

[0028]The revolving body 3 is disposed above the traveling body 2. The revolving body 3 is configured to be able to revolve with respect to the traveling body 2 about an axis along an up-down direction by a revolution motor (not illustrated). A swing machiner...

Claims

1. A work machine, comprising:a traveling body; anda revolving body, the revolving body includinga revolving frame rotatably disposed above the traveling body,a flat surface disposed on the revolving frame, anda storage box disposed adjacent to the flat surface, the storage box including a shelf that is movable.

2. The work machine according to claim 1, whereinthe storage box includesa top surface, andan inclined surface disposed on the flat surface side of the top surface, the inclined surface being inclined downward toward the flat surface side.

3. The work machine according to claim 2, wherein the storage box further includes a first side surface facing the flat surface, the inclined surface is disposed between the first side surface and the top surface, and the storage box includes an openable cover formed across the first side surface, the inclined surface, and the top surface.

4. The work machine according to claim 1, whereinthe storage box includesa first side surface facing the flat surface, anda second side surface opposed to the first side surface and disposed on a side opposite to the flat surface with respect to the first side surface, the shelf being rotatably attached to the second side surface via a hinge.

5. The work machine according to claim 1, whereinthe storage box includes a bottom surface disposed below the flat surface.

6. The work machine according to claim 1, further comprising:a walkway including the flat surface, the flat surface being configured to serve as a step, the storage box being disposed adjacent to the walkway.

7. The work machine according to claim 6, whereinan entrance to the flat surface is disposed on a side surface side of the revolving body,the storage box is disposed facing the entrance across the flat surface, andthe walkway extends from the flat surface toward the rear of the revolving body.

8. The work machine according to claim 2, further comprising:a reductant tank disposed adjacent to the flat surface; andan openable cover covering the reductant tank,the reductant tank including a refill port for reductant, the refill port facing the flat surface side.

Images