Work machine

Abstract

To provide a work machine that ensures safety of an operator and visibility through side windows and that is capable of storing a detached first transparent plate in a limited space inside a cabin.SOLUTION: A hydraulic excavator as a work machine has a cabin provided at one side in a width direction. The cabin includes: a first transparent plate detachably attached at a front lower part; a side window provided at the other side in the width direction; a guard member spanning the side window from a front side to a rear side; a first holding portion holding the first transparent plate detached from the front lower part from above; and a second holding portion holding the detached first transparent plate from below. The first holding portion is disposed above the guard member, and the second holding portion is disposed below the guard member.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to a work machine. [Background technology]

[0002] Patent Document 1 discloses a cab equipped with a transparent plate (glass plate) as a lower front window and side windows. The transparent plate is detachably arranged at the bottom of the front wall of the cab, and when removed, the transparent plate is stored in a storage compartment located at the rear inside the cab. The side windows are located on the right side of the cab. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-8120 Summary of the Invention [Problem to be solved by the invention]

[0004] For example, in the case of a small work machine, particularly one that is short in the fore-and-aft direction, the cab must also be short in the fore-and-aft direction, making it difficult to install a storage section at the rear inside the cab, as in Patent Document 1.

[0005] Incidentally, when a cab such as that disclosed in Patent Document 1 is disposed on the left side of the body of a work machine, the work equipment is often disposed next to the cab on the right side. In such cases, a guard member may be provided on the side window located on the right side of the cab (the work equipment side) as a safety measure. However, if a storage unit is to be installed near the guard member in order to fit into the limited space inside the cab (particularly in the front-to-rear direction), there is a risk that the storage unit will obstruct the operator's view (view through the side window).

[0006] The present invention has been made to solve the above problems, and its object is to provide a work machine that ensures the safety of the operator and visibility through the side windows, and that can store a detached transparent plate (first transparent plate) in the limited space inside the cab (cabin). [Means for solving the problem]

[0007] A work machine according to one aspect of the present invention is a work machine having a cabin arranged on one side in the width direction, the cabin having a first transparent plate arranged in a detachable manner at the front lower part, a side window arranged on the other side in the width direction, a guard member spanning from the front side to the rear side of the side window, a first holding part that holds from above the first transparent plate that has been detached from the front lower part, and a second holding part that holds from below the detached first transparent plate, the first holding part being arranged above the guard member and the second holding part being arranged below the guard member. [Effects of the Invention]

[0008] According to the above configuration, the safety of the operator and visibility through the side windows are ensured, and the detached first transparent plate can be stored in the limited space inside the cabin. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a left side view showing a schematic configuration of a hydraulic excavator, which is an example of a work machine according to an embodiment of the present invention. [Figure 2] FIG. 2 is a perspective view showing the configuration of a cabin provided in the hydraulic excavator, viewed from the right front. [Figure 3] FIG. 2 is a perspective view of the cabin from the left rear. [Figure 4] FIG. 2 is a perspective view of the cabin from the left front. [Figure 5] FIG. 2 is a perspective view showing the configuration of an upper front window provided in the cabin. [Figure 6]4 is a cross-sectional view of the cabin showing the arrangement of holding portions provided in the cabin. FIG. [Figure 7] 4 is a perspective view showing the configuration of a first holding portion included in the holding portion. FIG. [Figure 8] 5 is an explanatory view illustrating a configuration of a gripping member of the first holding portion. FIG. [Figure 9] 4 is an enlarged view showing the vicinity of a second holding portion included in the holding portion. FIG. [Figure 10] 10 is an explanatory diagram illustrating a method of storing a first transparent plate provided in the cabin. FIG. [Figure 11] FIG. 2 is an enlarged view showing an operating section of the hydraulic excavator. DETAILED DESCRIPTION OF THE INVENTION

[0010] The following describes an embodiment of the present invention with reference to the drawings. For convenience, in the drawings used to explain the embodiment, a transparent plate (for example, a first transparent plate WF2 described later) is illustrated as a non-transparent plate (shielding plate).

[0011] [1. General configuration of the work machine] 1 is a left side view showing a schematic configuration of a hydraulic excavator 1, which is an example of a work machine according to an embodiment of the present invention. The hydraulic excavator 1 includes a lower traveling structure 2, a work implement 3, and an upper rotating structure 4.

[0012] In this embodiment, directions are defined as follows. The direction in which an operator (driver, operator) seated in the driver's seat 44a disposed in the driver's section 44 of the upper rotating body 4 faces forward is defined as "forward," and the opposite direction is defined as "rearward." When the upper rotating body 4 is not rotating relative to the undercarriage 2 (swing angle 0 degrees), the fore-and-aft direction of the upper rotating body 4 coincides with the fore-and-aft direction of the lower rotating body 2. In the drawings, the hydraulic excavator 1 is shown in a state in which the upper rotating body 4 is not rotating relative to the undercarriage 2. Also, the left side as viewed from the operator seated in the driver's seat 44a is defined as "left," and the right side is defined as "right." Furthermore, the direction of gravity, which is perpendicular to the fore-and-aft direction and the left-and-right direction, is defined as the up-and-down direction, with the upstream side of the direction of gravity defined as "up" and the downstream side as "down." In the drawings, as necessary, the front is indicated with "F," the rear with "B," the right with "R," the left with "L," the up with "U," and the down with "D."

[0013] The lower traveling body 2 is equipped with a pair of left and right crawlers 21, a pair of left and right travel motors 22, and a blade 23. The left and right travel motors 22 drive the left and right crawlers 21, respectively, to move the hydraulic excavator 1 forward and backward. The travel motors 22 are configured as hydraulic motors. The blade 23, which performs ground leveling work and the like, is provided on the front side of the lower traveling body 2. The blade 23 is rotated by a blade cylinder (not shown). The base end of the blade cylinder is connected to the blade 23, and the tip end is connected to the front part of the upper rotating body 4. The blade cylinder is configured as a hydraulic cylinder.

[0014] The work implement 3 includes a boom 31, an arm 32, and a bucket 33. By independently driving the boom 31, the arm 32, and the bucket 33, it is possible to perform work of excavating earth and sand, etc.

[0015] The boom 31 has a lower boom 31a, an upper boom 31b, and an arm stay 31c. The base end of the lower boom 31a is connected to the front of the upper rotating body 4 so as to be rotatable in the up-down and down-front directions. The tip of a boom cylinder (not shown) is connected to the tip of the lower boom 31a. The base end of the boom cylinder is connected to the front of the upper rotating body 4. More specifically, the boom cylinder is disposed forward of the lower boom 31a. The boom cylinder is movable so as to be able to extend and retract. When the boom cylinder extends and retracts, the lower boom 31a rotates in the up-down and down-front directions relative to the upper rotating body 4.

[0016] The base end of the upper boom 31b is connected to the tip end of the lower boom 31a so as to be rotatable in the left-right direction. The arm stay 31c is connected to the tip end of the upper boom 31b so as to be rotatable in the left-right direction. The base end of an offset cylinder 31b1 is connected to the left side surface of the base end of the upper boom 31b. The tip end of the offset cylinder 31b1 is connected to the left side surface of the arm stay 31c. The offset cylinder 31b1 is movable so as to extend and retract. The left side surface of the arm stay 31c and the left side surface of the tip end of the lower boom 31a are connected by a link rod 31b2.

[0017] When the offset cylinder 31b1 extends and retracts, the upper boom 31b rotates left and right relative to the lower boom 31a, and the arm stay 31c moves left and right (offset). At this time, the arm stay 31c rotates left and right relative to the upper boom 31b. As a result, the arm stay 31c moves left and right without rotating left and right relative to the lower boom 31a.

[0018] The base end of the arm 32 is connected to the arm stay 31c so as to be rotatable in the up-down and front-back directions. The tip end of the arm cylinder 32a is connected to the base end of the arm 32. The arm cylinder 32a is connected to the arm stay 31c at a location between the tip end and the base end. The arm cylinder 32a is movable so as to be able to extend and retract. When the arm cylinder 32a extends and retracts, the arm 32 rotates in the up-down and front-back directions relative to the arm stay 31c.

[0019] The bucket 33 is connected to the tip of the arm 32 so as to be rotatable in the up-down and front-back directions. The bucket 33 is also connected to the arm 32 via a bucket link 34. The base end of the arm 32 is connected to the base end of the bucket cylinder 33a. The tip of the bucket cylinder 33a is connected to the bucket link 34. The bucket cylinder 33a is movable so as to be able to extend and retract. When the bucket cylinder 33a extends and retracts, the bucket 33 rotates in the up-down and front-back directions relative to the arm 32.

[0020] The boom cylinder, the offset cylinder 31b1, the arm cylinder 32a, and the bucket cylinder 33a are configured by hydraulic cylinders.

[0021] The upper rotating body 4 is located above the lower traveling body 2 and is provided so as to be able to rotate relative to the lower traveling body 2 via a rotating bearing (not shown). The upper rotating body 4 includes a rotating frame 41, a rotating motor 42, a machine room 43, a driver's section 44, and a cabin 100. In other words, the hydraulic excavator 1 includes the cabin 100.

[0022] The upper rotating body 4 rotates via the above-mentioned rotating bearing by driving a rotating motor 42 arranged on the rotating frame 41. The rotating frame 41 is configured to include a plurality of metal members joined by welding or the like. The rotating motor 42 is configured by a hydraulic motor.

[0023] The engine EG is housed in the machine room 43. The engine EG is a drive source for the hydraulic excavator 1. The engine EG is configured as a diesel engine, but is not limited to this and may be configured as a gasoline engine, for example.

[0024] The machinery room 43 accommodates the engine EG as well as a plurality of hydraulic pumps (not shown). Each of the hydraulic pumps supplies hydraulic oil (pressurized oil) to a hydraulic motor and a hydraulic cylinder. The hydraulic motors are, for example, the left and right travel motors 22 and the swing motor 42. The hydraulic cylinders are, for example, a blade cylinder, a boom cylinder, an offset cylinder 31b1, an arm cylinder 32a, and a bucket cylinder 33a. The hydraulic motors and hydraulic cylinders driven by hydraulic oil are collectively referred to as hydraulic actuators.

[0025] The driver's unit 44 is disposed on the upper left side of the upper rotating body 4. More specifically, the driver's unit 44 is disposed adjacent to the left of the work implement 3. The driver's seat 44a is provided in the driver's unit 44. A plurality of control members 44b are disposed around the driver's seat 44a. The plurality of control members 44b are configured to include levers, switches, pedals, etc. The operator sits in the driver's seat 44a and operates the plurality of control members 44b to drive the hydraulic actuators. This enables the undercarriage 2 to travel, the blade 23 to perform ground leveling work, the work implement 3 to perform excavation work, the upper rotating body 4 to rotate, etc.

[0026] The cabin 100 is disposed so as to cover the driving section 44. That is, the cabin 100 is disposed on the upper left side of the upper rotating body 4, similar to the driving section 44. That is, the cabin 100 is located on one side (the left side in this embodiment) in the width direction (left-right direction). The cabin 100 is also disposed side by side with the work implement 3. That is, the work implement 3 is located on the other side (the right side in this embodiment) in the width direction relative to the cabin 100. The configuration of the cabin 100 will be described below.

[0027] [2. Cabin configuration] FIG. 2 is a perspective view from the front right showing the configuration of the cabin 100. FIG. 3 is a perspective view from the rear left of the cabin 100. FIG. 4 is a perspective view from the front left of the cabin 100. For convenience, FIG. 4 omits illustration of a door 110, a first transparent plate WF2, and a fifth transparent plate WF3b, which will be described later. The cabin 100 has a front wall 100F, a right side wall 100R, a rear wall 100B, a left side wall 100L, an upper wall 100U, and a door 110. The cabin 100 is configured with an open bottom.

[0028] As shown in FIG. 2 , the front wall 100F is disposed on the front side of the cabin 100. More specifically, the front wall 100F includes a left front pillar 101, a right front pillar 102, and a front window WF. The left front pillar 101 and the right front pillar 102 are configured by metal columnar members extending in the vertical direction. The left front pillar 101 is disposed on the left front side of the cabin 100. The right front pillar 102 is disposed on the right front side of the cabin 100.

[0029] The front window WF is provided between a left front pillar 101 and a right front pillar 102. The front window WF is composed of a front window frame WF1, a first transparent plate WF2, and a front upper window WF3. The front window frame WF1 is composed of a plurality of metal members joined by welding or the like. The left end of the front window frame WF1 is connected to the left front pillar 101, and the right end is connected to the right front pillar 102.

[0030] The front window frame WF1 is provided with a front window opening WF1a that penetrates in the front-rear direction. The front window opening WF1a is formed in a polygonal shape when viewed from the front of the hydraulic excavator 1 (cabin 100), but is not limited thereto and may be, for example, a circle or an ellipse. Furthermore, a configuration may be adopted in which a plurality of front window openings WF1a are provided.

[0031] The front window frame WF1 also has an insertion portion WF1b located lower than the center in the vertical direction. That is, the insertion portion WF1b is located in the front lower portion 100FD of the cabin 100. The insertion portion WF1b is configured in a box shape with an open upper surface. More specifically, the insertion portion WF1b includes a first standing plate WF1c and a second standing plate WF1d. The first standing plate WF1c is located on the front side of the insertion portion WF1b. The first standing plate WF1c is configured as a plate-like member extending in the vertical direction. The first standing plate WF1c forms the front portion of the front window frame WF1 and also forms the front window opening WF1a. The second standing plate WF1d is located on the rear side of the insertion portion WF1b. In particular, the second standing plate WF1d is located rearward of the first standing plate WF1c. The second standing plate WF1d is composed of a plate-like member extending in the vertical direction. The second standing plate WF1d constitutes the front window opening WF1a. The left and right ends of the insertion portion WF1b are closed by the right side surface of the left front pillar 101 and the left side surface of the right front pillar 102. The first transparent plate WF2 is inserted into the insertion portion WF1b.

[0032] The first transparent plate WF2 is made of a plate-shaped transparent material. For example, the first transparent plate WF2 is made of a glass plate. The shape of the first transparent plate WF2 will be described in detail later. Note that the first transparent plate WF2 is not limited to being made of glass, and may be made of any transparent (see-through) material, such as a transparent resin material. In other words, the first transparent plate WF2 functions as the front lower window WF4.

[0033] When inserting the first transparent plate WF2 into the insertion portion WF1b, the first transparent plate WF2 is moved downward from above the insertion portion WF1b. This allows the first transparent plate WF2 to be positioned between the first upright plate WF1c and the second upright plate WF1d in the front-rear direction. This allows the first transparent plate WF2 to be inserted into the insertion portion WF1b. A vibration-proof member may be provided inside the insertion portion WF1b to prevent the inserted first transparent plate WF2 from shifting due to vibrations or the like. Furthermore, when the first transparent plate WF2 inserted in the insertion portion WF1b is moved upward, the first transparent plate WF2 can be pulled out of the insertion portion WF1b. In other words, the cabin 100 has the first transparent plate WF2 detachably arranged in the front lower portion 100FD.

[0034] The upper front window WF3 is attached to the upper part of the front window frame WF1 via a link mechanism (not shown). The link mechanism allows the upper front window WF3 to slide up and down. The configuration of the upper front window WF3 will be described later.

[0035] The right side wall 100R is disposed on the right side of the cabin 100. More specifically, the right side wall 100R includes a right front pillar 102, a right rear pillar 103, a cover member 104, and a side window WR (right window). That is, the cabin 100 has the side window WR, and this side window WR is located on the other side in the width direction (the right side in this embodiment).

[0036] The right rear pillar 103 is made of a metal columnar member that extends in the vertical direction. The right rear pillar 103 is disposed on the right rear side of the cabin 100. The cover member 104 is made of a metal plate-shaped member that extends in the longitudinal direction. The cover member 104 is disposed rearward of the right front pillar 102.

[0037] The side window WR includes a side window frame WR1 and a second transparent plate WR2. The side window frame WR1 includes an upper window frame member WR1a and a lower window frame member WR1b. The upper window frame member WR1a and the lower window frame member WR1b are each composed of a metal beam-shaped member extending in the front-to-rear direction. The upper window frame member WR1a is disposed above the side window frame WR1. The front end of the upper window frame member WR1a is connected to the upper end of the right front pillar 102, and the rear end is connected to the upper end of the right rear pillar 103. The lower window frame member WR1b is disposed below the side window frame WR1. The front end of the lower window frame member WR1b is connected to near the center of the right front pillar 102 in the up-down direction, and the rear end is connected to the lower end of the right rear pillar 103. That is, the upper window frame member WR1a, the lower window frame member WR1b, the right front pillar 102 (particularly the upper part of the right front pillar 102), and the right rear pillar 103 form the side window frame WR1.

[0038] The second transparent plate WR2 is made of a plate-shaped transparent material extending in the front-rear and up-down directions. For example, the second transparent plate WR2 is made of a glass plate. Note that, like the first transparent plate WF2, the second transparent plate WR2 may also be made of a transparent (see-through) material, such as a transparent resin material.

[0039] The second transparent plate WR2 has an upper end fixed to the upper window frame member WR1a and a lower end fixed to the lower window frame member WR1b. The second transparent plate WR2 also has a front end fixed to the right front pillar 102 and a rear end fixed to the right rear pillar 103. The second transparent plate WR2 is fixed to each of the members using, for example, an adhesive.

[0040] Further, guard members 105 are provided on the side window frame WR1. More specifically, the guard members 105 include a first guard member 105a and a second guard member 105b. The first guard member 105a and the second guard member 105b are each formed of a metal plate-shaped member extending in the front-to-rear direction. The front ends of the first guard member 105a and the second guard member 105b are respectively connected to the right front pillar 102. The rear ends of the first guard member 105a and the second guard member 105b are respectively connected to the right rear pillar 103. That is, the cabin 100 is provided with guard members 105 (first guard member 105a, second guard member 105b), which span the side window WR from the front side to the rear side.

[0041] The first guard member 105a and the second guard member 105b are arranged next to each other in the vertical direction. In particular, the first guard member 105a is positioned higher than the second guard member 105b. Furthermore, the first guard member 105a and the second guard member 105b are arranged to the right of the second transparent plate WR2.

[0042] In this embodiment, two guard members 105 are provided, but the number of guard members 105 is not limited to two. For example, the number of guard members 105 may be one, or three or more. Regardless of the number of guard members 105, as in this embodiment, the guard member 105 located at the top in the vertical direction is referred to as the first guard member 105a, and the guard member 105 located at the bottom in the vertical direction is referred to as the second guard member 105b. Specifically, when there are three guard members 105, the guard member 105 located at the top is referred to as the first guard member 105a, and the guard member 105 located at the bottom is referred to as the second guard member 105b. When there is only one guard member 105, the guard member 105 itself is referred to as both the first guard member 105a and the second guard member 105b.

[0043] As shown in FIG. 3 , the rear wall 100B is disposed on the rear side of the cabin 100. More specifically, the rear wall 100B includes a right rear pillar 103, a left rear pillar 106, a rear window WB, and an air conditioning equipment room 107. The left rear pillar 106 is formed of a metal columnar member extending in the vertical direction. The left rear pillar 106 is disposed on the left rear side of the cabin 100.

[0044] The rear window WB is configured by fixing a third transparent plate WB1 to a rear window frame (not shown) including a right rear pillar 103 and a left rear pillar 106. The third transparent plate WB1 is configured by bending a plate-shaped transparent member extending in the left-right direction forward as it extends to the left. In other words, the third transparent plate WB1 is curved so as to bulge toward the left rear. The third transparent plate WB1 is configured, for example, of a glass plate. Note that, like the first transparent plate WF2 and the like, the third transparent plate WB1 may also be configured of any transparent (see-through) member, and may be configured, for example, of a transparent resin member. The third transparent plate WB1 is fixed to the rear window frame using, for example, an adhesive. Note that the rear window WB is located at the upper part of the rear wall 100B.

[0045] The air conditioning equipment room 107 is disposed in the lower part of the rear wall 100B. The air conditioning equipment room 107 houses air conditioning equipment (not shown) that performs air conditioning (cooling, heating, etc.) for the driving section 44. The air conditioning equipment includes, for example, a condenser (heat exchanger), a fan, etc.

[0046] The left side wall 100L is disposed on the left rear side of the cabin 100. More specifically, the left side wall 100L includes a left rear pillar 106, a center pillar 108, and a left window WL. The center pillar 108 is formed of a metal columnar member extending in the vertical direction. The center pillar 108 is disposed on the left side of the cabin 100, near the center in the fore-and-aft direction. Therefore, the center pillar 108 is located rearward of the left front pillar 101.

[0047] The left window WL is configured by fixing a fourth transparent plate WL1 to a left window frame (not shown) that includes a left rear pillar 106 and a center pillar 108. The fourth transparent plate WL1 is configured from a plate-shaped transparent member that extends in the vertical direction. For example, the fourth transparent plate WL1 is configured from a glass plate. Note that, like the first transparent plate WF2, the fourth transparent plate WL1 may also be configured from any transparent (see-through) member, and may be configured from, for example, a transparent resin member. The fourth transparent plate WL1 is fixed to the left window frame using, for example, an adhesive.

[0048] A door 110 is disposed between the center pillar 108 and the left front pillar 101. The door 110 is fixed to the center pillar 108 via a hinge portion 108a. The hinge portion 108a is a connecting mechanism that rotatably connects the door 110 to the center pillar 108. The hinge portion 108a allows the door 110 to rotate in a front-opening manner relative to the center pillar 108, with the vertical direction as the rotation axis.

[0049] The upper wall 100U is disposed on the upper side of the cabin 100. The upper wall 100U extends horizontally and is connected to the upper ends of the front wall 100F, the right side wall 100R, the rear wall 100B, and the left side wall 100L. A skylight WU is provided in the upper wall 100U.

[0050] 4, in this embodiment, the interior portion of the cabin 100, which is partitioned by the front wall 100F, the right side wall 100R, the rear wall 100B, the left side wall 100L, the upper wall 100U, and the door 110, is referred to as the interior IS of the cabin 100. In contrast, the portion of the cabin 100 opposite the interior IS of the cabin 100 with respect to the front wall 100F, the right side wall 100R, the rear wall 100B, the left side wall 100L, the upper wall 100U, and the door 110 is referred to as the exterior OS of the cabin 100. Therefore, for example, the second transparent plate WR2 included in the right side wall 100R separates the interior IS of the cabin 100 from the exterior OS of the cabin 100.

[0051] Additionally, a holding portion 120 and a handle 130 are provided inside the cabin 100 IS. The holding portion 120 holds the first transparent plate WF2 detached (removed) from the insertion portion WF1b (front window WF) and allows the first transparent plate WF2 to be stored. The handle 130 is provided to be grasped by an operator seated in the driver's seat 44a (see FIG. 1), for example. The holding portion 120 and the handle 130 will be described in detail below.

[0052] Furthermore, a partition plate 107a of the air conditioning equipment room 107 is disposed on the rear side of the interior IS of the cabin 100. In the air conditioning equipment room 107, the partition plate 107a is located on the front side. The partition plate 107a is made of a metal plate-shaped member that extends and inclines rearward as it goes from bottom to top (see also FIG. 6, which will be described later). The lower end of the partition plate 107a is bent downward. That is, the partition plate 107a is configured to include an inclined surface portion 107a1. As described above, the air conditioning equipment room 107 is included in the rear wall 100B. Therefore, the partition plate 107a, which includes the inclined surface portion 107a1, is also included in the rear wall 100B. That is, the rear wall 100B includes the inclined surface portion 107a1 that inclines rearward as it goes from bottom to top.

[0053] The configuration of the upper front window WF3 of the front wall 100F will now be described with reference to Fig. 5. Fig. 5 is a perspective view showing the configuration of the upper front window WF3. The upper front window WF3 includes an upper front window frame WF3a, a fifth transparent plate WF3b, and a wiper WF3c.

[0054] The front upper window frame WF3a is formed by joining multiple metal rod-shaped members together in a frame shape by welding or the like. The fifth transparent plate WF3b is formed by a plate-shaped transparent member extending in the front-rear and up-down directions. For example, the fifth transparent plate WF3b is formed by a glass plate. Note that, like the first transparent plate WF2, the fifth transparent plate WF3b may also be formed by any transparent (see-through) member, such as a transparent resin member.

[0055] Each end of the fifth transparent plate WF3b is fixed to the upper front window frame WF3a using, for example, an adhesive. A wiper WF3c is attached to the right side of the upper front window frame WF3a. The wiper WF3c rotates relative to the upper front window frame WF3a (fifth transparent plate WF3b) to wipe away dirt and other debris adhering to the front surface of the fifth transparent plate WF3b.

[0056] As described above, the front upper window WF3 is attached to the front window frame WF1 via a link mechanism so as to be slidable up and down. Therefore, when the front upper window WF3 is slid upward, the front upper window WF3 can be moved to the vicinity of the upper rear part of the front wall 100F (the front lower part of the upper wall 100U).

[0057] When the front upper window WF3 is slid downward (as shown in FIG. 2), the front upper window WF3 is located above the insertion portion WF1b of the front window frame WF1. More specifically, in this state, the lower end of the front upper window WF3 contacts the upper end of the first transparent plate WF2 inserted into the insertion portion WF1b of the front window frame WF1. In other words, the front upper window WF3 presses down on the first transparent plate WF2 inserted into the insertion portion WF1b from above. Therefore, the first transparent plate WF2 can be attached to or detached from the insertion portion WF1b with the front upper window WF3 slid upward.

[0058] [3. Storage of the first transparent panel] The storage of the first transparent plate WF2 detached from the front lower portion 100FD of the cabin 100 will be described. First, the holder 120 that holds the first transparent plate WF2 when storing the first transparent plate WF2 will be described. Fig. 6 is a cross-sectional view of the cabin 100 showing the arrangement of the holder 120. For convenience, Fig. 6 also illustrates the first transparent plate WF2 in a state held by the holder 120 (held state).

[0059] The holding portion 120 is disposed on the rear side of the right side wall 100R in the interior IS of the cabin 100. The holding portion 120 is configured to include a first holding portion 121 and a second holding portion 122. The first holding portion 121 and the second holding portion 122 are disposed spaced apart in the up-down direction. In particular, the first holding portion 121 is positioned higher than the second holding portion 122.

[0060] The first holding portion 121 and the second holding portion 122 are disposed to the left of the second transparent plate WR2 (in front of the second transparent plate WR2 in FIG. 6) and face the second transparent plate WR2 (see also FIG. 4). As described above, the guard member 105 is disposed to the right of the second transparent plate. Therefore, the second transparent plate WR2 is located between the guard member 105 and the first holding portion 121 and the second holding portion 122 in the width direction (left-right direction).

[0061] The first retaining portion 121 is connected to the lower end of the upper window frame member WR1a. The guard member 105 is disposed at a position spaced downward from the upper window frame member WR1a. Therefore, the first retaining portion 121 is positioned above the guard member 105 (particularly the first guard member 105a).

[0062] The second holding portion 122 is disposed near the lower end of the side window frame WR1 (for example, the lower window frame member WR1b). The guard member 105 is disposed at a position above and away from the lower end of the side window frame WR1. Therefore, the second holding portion 122 is positioned below the guard member 105 (particularly the second guard member 105b).

[0063] The second holding portion 122 includes a front holding portion 122a and a rear holding portion 122b. The front holding portion 122a and the rear holding portion 122b are spaced apart in the front-to-rear direction. Details of the front holding portion 122a and the rear holding portion 122b will be described later. A handle 130 is disposed below the first transparent plate WF2 when it is held by the first holding portion 121 and the second holding portion 122.

[0064] As described above, the first transparent plate WF2 is made of a plate-shaped transparent member, more specifically, a rectangular flat plate. A bulging portion WF2a that bulges outward from the first transparent plate WF2 is formed near the center of one of the long sides of the first transparent plate WF2. In particular, when the first transparent plate WF2 is held by the holder 120, the bulging portion WF2a is formed on the rear long side of the first transparent plate WF2 and bulges outward. The bulging portion WF2a is connected to the lower end (one of the short sides) of the first transparent plate WF2 by an inclined side WF2b.

[0065] When the first transparent plate WF2 is held by the holder 120, the inclined side portion WF2b is located between the lower end of the first transparent plate WF2 and the bulging portion WF2a, and is inclined rearward as it extends from bottom to top. In the above state, the inclined surface portion 107a1 of the partition plate 107a is located rearward and below the inclined side portion WF2b. More specifically, the inclined side portion WF2b (the surface of the inclined side portion WF2b that extends in the width direction and faces rearward and downward) and the inclined surface portion 107a are located opposite each other. Furthermore, the inclined side portion WF2b is inclined in the up-down direction at approximately the same inclination angle as the inclined surface portion 107a1. That is, the first transparent plate WF2 includes an inclined side portion WF2b, which is inclined along the inclined surface portion 107a1 when held by the holding portion 120 (the first holding portion 121 and the second holding portion 122).

[0066] When the first transparent plate WF2 is attached to the front lower portion 100FD of the cabin 100 (inserted into the insertion portion WF1b) (see FIG. 2), the bulging portion WF2a of the first transparent plate WF2 is located on the lower side. More specifically, the width direction of the first transparent plate WF2 when attached to the front lower portion 100FD of the cabin 100 corresponds to the up-down direction when held by the holding portion 120. In other words, the first transparent plate WF2 is held in a state rotated 90 degrees from the state in which it was detached from the front lower portion 100FD of the cabin 100.

[0067] Next, the configuration of the first holding portion 121 will be described with reference to FIG. 7. FIG. 7 is a perspective view showing the configuration of the first holding portion 121. The first holding portion 121 is configured by attaching two gripping members 121a to a mounting bracket 121b. The mounting bracket 121b is configured by bending the upper end, front end, and rear end of a metal plate-like member extending in the front-rear and up-down directions toward the right. Protrusions 121b1 that protrude downward are formed on the front and rear sides of the lower end of the mounting bracket 121b. The gripping members 121a are fixed to the front and rear protrusions 121b1 by fastening members such as bolts.

[0068] The number of gripping members 121a is not limited to two, and may be one, or three or more. The shape of mounting bracket 121b may be changed appropriately depending on the number of gripping members 121a.

[0069] The mounting bracket 121b is further provided with an opening 121b2 that penetrates in the left-right direction. The opening 121b2 is formed in a rectangular shape when the first holding part 121 is viewed from the left, but is not limited to this. The opening 121b2 only needs to be as large as possible, and may be formed in, for example, a square, a circle, an oval, or a polygonal shape other than a rectangle. Furthermore, a plurality of openings 121b2 may be provided.

[0070] As described above, the holding portion 120 including the first holding portion 121 is disposed opposite the second transparent plate WR2 (see FIGS. 4 and 6). Therefore, the opening 121b2 of the mounting bracket 121b also faces the second transparent plate WR2. In other words, the first holding portion 121 has the opening 121b2 facing the second transparent plate WR2.

[0071] The configuration of gripping member 121a will be described with reference to Fig. 8. Fig. 8 is an explanatory diagram illustrating the configuration of gripping member 121a. In Fig. 8, gripping member 121a in a closed state is illustrated on the left side, and gripping member 121a in an open state is illustrated on the right side.

[0072] The grip member 121a is integrally formed by including a base 121a1 and a movable part 121a2. The movable part 121a2 is connected to the base 121a1 so as to be rotatable in the vertical direction. In particular, a connecting portion (not shown) between the base 121a1 and the movable part 121a2 is configured to be elastically deformable. More specifically, when the movable part 121a2 is not rotated relative to the base 121a1, the movable part 121a2 is positioned on the lower side (see the left side of FIG. 8). Here, for example, if the upper side of the movable part 121a2 is pinched with fingers and moved toward the base 121a1 (to the right), the movable part 121a2 is rotated and moves to the upper right (see the right side of FIG. 8). Then, when the fingers are released in this state, the movable part 121a2 naturally moves downward (returns to its original position). Here, in the gripping member 121a, the state in which the movable part 121a2 is positioned on the lower side is called the closed state (see the left diagram in Figure 8), and the state in which the movable part 121a2 is positioned on the upper side is called the open state (see the right diagram in Figure 8).

[0073] The configuration of gripping member 121a is not limited to the above. For example, gripping member 121a may be configured such that movable portion 121a2 is biased toward base portion 121a1 using a biasing member such as a spring. In this configuration, when the upper side of movable portion 121a2 is pinched with fingers in the state shown in the left diagram of FIG. 8 (a state in which the lower side of movable portion 121a2 is closed), movable portion 121a2 rotates against the biasing force of the biasing member, and the lower side opens, resulting in the state shown in the right diagram of FIG. 8.

[0074] The front holding portion 122a and the rear holding portion 122b will be described in detail with reference to Fig. 9. Fig. 9 is an enlarged view showing the vicinity of the second holding portion 122. A holding member 122c is provided on each of the front holding portion 122a and the rear holding portion 122b. The holding member 122c on the front holding portion 122a and the holding member 122c on the rear holding portion 122b are positioned opposite each other in the front-to-rear direction.

[0075] The holding member 122c is made of a metal member having a recess 122c1 recessed downward from the upper surface (see also FIG. 10 described later). One side of the recess 122c1 in the front-to-rear direction is closed. More specifically, the recess 122c1 in the holding member 122c of the front holding portion 122a is closed on the front side, and the recess 122c1 in the holding member 122c of the rear holding portion 122b is closed on the rear side.

[0076] In the front holding portion 122a, the holding member 122c is supported by a front support bracket 122a1. The front support bracket 122a1 is formed by bending the top, bottom, left, and right ends of a metal plate-shaped member extending in the front-rear and up-down directions to the left. The holding member 122c is fixed to the upper side of the front support bracket 122a1 with fastening members such as bolts. The lower side of the front support bracket 122a1 is connected to the lower window frame member WR1b. In particular, the front support bracket 122a1 is connected at a position spaced forward from the partition plate 107a of the air conditioning equipment room 107.

[0077] In the rear holding portion 122b, the holding member 122c is supported by a rear support bracket 122b1. The rear support bracket 122b1 is formed by bending the upper end and rear end of a metal plate-shaped member extending in the front-rear and up-down directions to the left. The holding member 122c is attached to the upper side (the upper end bent to the left) of the rear support bracket 122b1 by means of fastening members such as bolts. The rear support bracket 122b1 is fixed by the partition plate 107a. The rear side (the rear end bent to the left) of the rear support bracket 122b1 is connected to the partition plate 107a. That is, the rear support bracket 122b1 is provided so as to protrude forward from the partition plate 107a. As described above, the partition plate 107a constitutes the rear wall 100B. Therefore, the rear holding portion 122b is attached to the rear wall 100B.

[0078] As described above, the holding portion 120 including the second holding portion 122 (front holding portion 122a, rear holding portion 122b) is disposed facing the second transparent plate WR2 (see also FIGS. 4 and 6). The front holding portion 122a is disposed at a position spaced forward from the partition plate 107a. Therefore, the front holding portion 122a and the rear holding portion 122b are disposed facing the second transparent plate WR2 and spaced apart in the front-to-rear direction.

[0079] A handle 130 is disposed between the front holding portion 122a and the rear holding portion 122b in the front-rear direction (see also FIG. 6). The handle 130 is attached to the left side of the lower window frame member WR1b. Therefore, the handle 130 is located on one side in the width direction (the left side in this embodiment) of the side window WR.

[0080] Here, a method for storing the first transparent plate WF2 (a method for holding the first transparent plate WF2 in the holder 120) will be described with reference to Fig. 10. Fig. 10 is an explanatory diagram for explaining a method for storing the first transparent plate WF2.

[0081] When the first transparent plate WF2 is held by the holding unit 120, first, as shown in the left diagram of Fig. 10, the first transparent plate WF2 is moved from above the holding member 122c of the second holding unit 122 toward the recess 122c1 of the holding member 122c. In other words, the first transparent plate WF2 is inserted into the recess 122c1. At this time, the gripping member 121a of the first holding unit 121 may be in a closed state.

[0082] Next, as shown in the center drawing of Fig. 10, the gripping member 121a is opened. As described above, the open state of the gripping member 121a is realized by pinching the upper side of the movable part 121a2 with the fingers and rotating the movable part 121a2 (see Fig. 8). Then, the first transparent plate WF2 is moved toward the gripping member 121a in the open state. More specifically, the side of the first transparent plate WF2 inserted into the recess 122c1 (the lower side in Fig. 10) is used as a fulcrum, and the side opposite to the side inserted into the recess 122c1 (the upper side in Fig. 10) is moved toward the gripping member 121a.

[0083] Thereafter, as shown in the right diagram of FIG. 10, the gripping member 121a is closed. As described above, when the gripping member 121a is in the open state and the finger is released from the movable portion 121a2, the gripping member 121a automatically switches to the closed state (see FIG. 8). Then, the gripping member 121a grips the upper side of the first transparent plate WF2, and the holding member 122c holds the lower side. That is, the first transparent plate WF2 is held from above by the first holding portion 121 (gripping member 121a) and from below by the second holding portion 122 (holding member 122c). That is, the first holding portion 121 and the second holding portion 122 can hold the first transparent plate WF2 detached from the front lower portion 100FD of the cabin 100. In this embodiment, as described above, the first holding portion 121 is disposed above the guard member 105, and the second holding portion 122 is disposed below the guard member 105.

[0084] According to the above configuration, the first retaining portion 121 and the second retaining portion 122 can be made smaller than, for example, a configuration in which the first retaining portion 121 and the second retaining portion 122 are arranged to extend from above or below so as to overlap with the guard member 105. This makes it possible to reduce the area of the operator's field of view through the side window WR that is blocked by the first retaining portion 121 and the second retaining portion 122. Therefore, in a small hydraulic excavator 1 (work machine) with a narrow interior IS of the cabin 100, it is possible to arrange the first retaining portion 121 and the second retaining portion 122 near the side window WR, that is, to install the first retaining portion 121 and the second retaining portion 122 in the narrow cabin 100, while ensuring the operator's field of view through the side window WR as much as possible.

[0085] Furthermore, a guard member 105 is provided on the side window WR. Therefore, for example, when the hydraulic excavator 1 tips over, the guard member 105 can prevent the operator from being thrown out of the cabin 100 (through the side window WR). As a result, the safety of the operator can be ensured. Furthermore, particularly in a small hydraulic excavator 1 in which the cabin 100 is arranged on one side in the width direction (the left side in this embodiment) as in this embodiment, the work equipment 3 is often arranged next to the cabin 100 on the other side in the width direction. Even in such a small hydraulic excavator 1, the guard member 105 can prevent the operator from coming into contact with the work equipment 3 in the event of tipping over. Therefore, a configuration in which the guard member 105 is provided on the side window WR located on the other side in the width direction of the cabin 100 is very effective in ensuring the safety of the operator in a small hydraulic excavator 1 (work machine) in which the cabin 100 is arranged on one side in the width direction.

[0086] From the viewpoint of reducing the size of the hydraulic excavator 1 in the longitudinal direction, it is desirable that the hydraulic excavator 1 be provided with the work implement 3 disposed on the other side of the cabin 100 in the width direction, as in this embodiment.

[0087] Even when guard member 105 includes first guard member 105a and second guard member 105b, it is desirable to ensure the field of view of the operator passing between first holding portion 121 and first guard member 105a and between second holding portion 122 and second guard member 105b. Furthermore, if first holding portion 121 and second holding portion 122 are made smaller, it becomes easier to expand the field of view in the vertical direction of the operator passing between first holding portion 121 and first guard member 105a and between second holding portion 122 and second guard member 105b. From this perspective, it is desirable that first holding portion 121 be disposed above first guard member 105a and second holding portion 122 be disposed below second guard member 105b, as shown in FIG. 6.

[0088] If the first retaining portion 121 and the second retaining portion 122 are disposed inside the cabin 100 IS and the guard member 105 is disposed outside the cabin 100 OS, installation of the first retaining portion 121 and the second retaining portion 122 and installation of the guard member 105 can be reliably achieved at the same time. In other words, because the guard member 105 is located outside the cabin 100 with respect to the side window WR, the guard member 105 does not become an obstacle when installing the first retaining portion 121 and the second retaining portion 122 inside the cabin 100 with respect to the side window WR. From this perspective, as shown in FIG. 6, it is desirable that the second transparent plate WR2 separating the interior IS of the cabin 100 from the exterior OS be disposed between the first retaining portion 121 and the second retaining portion 122 and the guard member 105. In particular, it is desirable that the first holding portion 121 and the second holding portion 122 are arranged on one side in the width direction (left side in this embodiment) with respect to the second transparent plate WR2, and the guard member 105 is arranged on the other side (right side in this embodiment).

[0089] In order to reduce the obstruction of the operator's view through the second transparent plate WR2 (side window WR) by the first holding portion 121, it is desirable that the first holding portion 121 have an opening 121b2 facing the second transparent plate WR2, as shown in Figures 6 and 7.

[0090] As shown in FIG. 10, when the first transparent plate WF2 is removed from the holder 120, the procedure is reversed from that for holding it. That is, first, with the first transparent plate WF2 held, the gripping member 121a is opened. Next, the first transparent plate WF2 is moved (released) toward the left from the open gripping member 121a. Once the first transparent plate WF2 is released from the gripping member 121a, the gripping member 121a can be closed. That is, the first holder 121 (gripping member 121a) is configured to allow the first transparent plate WF2 to be attached and detached. Then, the first transparent plate WF2 is moved (pulled out) upward. This allows the first transparent plate WF2 to be removed from the holder 120. That is, the second holder 122 (holding member 122c) is configured to allow the first transparent plate WF2 to be inserted and removed.

[0091] From the viewpoint of facilitating holding (storing) the first transparent plate WF2 in the holding portion 120 and detaching it from the holding portion 120, the following configuration is desirable. That is, as shown in Figures 8 and 10, it is desirable that the first holding portion 121 holds the first transparent plate WF2 in a detachable manner. Also, as shown in Figures 9 and 10, it is desirable that the second holding portion 122 holds the first transparent plate WF2 in a detachable manner.

[0092] As described above, the second holding portion 122 includes a front holding portion 122a and a rear holding portion 122b, and the front holding portion 122a and the rear holding portion 122b are each provided with a holding member 122c (see FIGS. 6 and 9). The recess 122c1 in the holding member 122c of the front holding portion 122a is closed at the front side, and the recess 122c1 in the holding member 122c of the rear holding portion 122b is closed at the rear side (see FIG. 9). Therefore, when the first transparent plate WF2 is held by the holding portion 120 (inserted into the recess 122c1 of each holding member 122c), the holding member 122c of the front holding portion 122a holds the first transparent plate WF2 from below and from the front. Furthermore, the holding member 122c of the rear holding portion 122b holds the first transparent plate WF2 from below and also from behind. This prevents the first transparent plate WF2 from shifting in the front-to-rear direction while held by the holding portion 120. From this perspective, as in this embodiment, it is desirable that the second holding portion 122 includes a front holding portion 122a that holds the first transparent plate WF2 from below and from the front, and a rear holding portion 122b that holds the first transparent plate WF2 from below and from the rear.

[0093] If the rear holding part 122b is positioned as close as possible to the rear side of the cabin 100, the rear holding part 122b will be less likely to obstruct the operator's forward visibility. From this perspective, in a configuration in which the cabin 100 has a rear wall 100B on the rear side as shown in Fig. 9, it is desirable that the rear holding part 122b be attached to the rear wall 100B.

[0094] In order to reduce the obstruction of the operator's view from the second transparent plate WR2 (side window WR) by the front holding portion 122a and the rear holding portion 122b, the following configuration is desirable: As shown in Figures 6 and 9, the front holding portion 122a and the rear holding portion 122b are desirably arranged facing the second transparent plate WR2 while being spaced apart in the front-to-rear direction.

[0095] The following configuration is desirable from the viewpoint of efficiently storing the first transparent plate WF2 in the limited space inside the cabin 100 IS. That is, in a configuration in which the rear wall 100B includes an inclined surface portion 107a1 that slopes rearward from bottom to top as it moves upward, as shown in Fig. 6, it is desirable for the first transparent plate WF2 to include an inclined side portion WF2b that slopes along the inclined surface portion 107a1.

[0096] When the cabin 100 has the handle 130, it is desirable to reduce the obstruction of the operator's view from the side window WR by the handle 130. It is also desirable to arrange the handle 130 by effectively utilizing the empty space between the front holding portion 122a and the rear holding portion 122b in the fore-and-aft direction. From this perspective, as shown in Fig. 9, it is desirable to arrange the handle 130 on the other side in the width direction (the left side in this embodiment) with respect to the side window WR, between the front holding portion 122a and the rear holding portion 122b in the fore-and-aft direction.

[0097] If the handle 130 is positioned in a position that is easy for the operator to grasp, the operator while driving (operating) can more easily grasp the handle 130 than the first transparent plate WF2 held by the holder 120. This reduces the chance of the operator accidentally touching the first transparent plate WF2 while driving. From this perspective, it is desirable that the handle 130 be positioned lower than the first transparent plate WF2 held by the holder 120, as shown in FIG. 6.

[0098] 4. Position of the holding part relative to the operating member The position of the holder 120 (particularly the second holder 122) relative to the plurality of operation members 44b provided on the driver 44 will be described with reference to Fig. 11. Fig. 11 is an enlarged view showing the driver 44.

[0099] The plurality of control members 44b include a first control lever 44b1, a second control lever 44b2, a third control lever 44b3, a fourth control lever 44b4, and a plurality of switches 44b5.

[0100] A pair of first control levers 44b1 are provided on the left and right in front of the driver's seat 44a. Operating the left and right first control levers 44b1 causes the lower traveling body 2 to travel. More specifically, operating the left first control lever 44b1 drives the left crawler 21 (see FIG. 1), and operating the right first control lever 44b1 drives the right crawler 21. The second control lever 44b2 is located to the left of the driver's seat 44a. Operating the second control lever 44b2 causes, for example, the arm 32 to be driven and the upper rotating body 4 to be rotated.

[0101] The third control lever 44b3 is located to the right of the operator's seat 44a. In particular, the third control lever 44b3 is located to the right of the second control lever 44b2. When the third control lever 44b3 is operated, for example, the boom 31 and the bucket 33 are driven. The fourth control lever 44b4 is located to the right of the operator's seat 44a. In particular, the fourth control lever 44b4 is located to the right and rear of the third control lever 44b3. When the fourth control lever 44b4 is operated, the blade 23 is driven.

[0102] The multiple switches 44b5 are arranged to the right of the operator's seat 44a. In particular, the multiple switches 44b5 are arranged rearward of the third control lever 44b3 and the fourth control lever 44b4. The multiple switches 44b5 enable various settings of the hydraulic excavator 1 to be changed.

[0103] The holder 120 (particularly the second holder 122) is located rearward of any of the first operating lever 44b1, the second operating lever 44b2, the third operating lever 44b3, and the fourth operating lever 44b4. As described above, the second holding portion 122 is positioned as close to the rear of the cabin 100 as possible by attaching the rear holding portion 122b to the rear wall 100B. Therefore, the third operating lever 44b3 in particular is positioned on the same side (right side) as the second holding portion 122 in the width direction (left-right direction) of the cabin 100, but the third operating lever 44b3 and the second holding portion 122 are positioned apart from each other. This prevents the second holding portion 122 or the first transparent plate WF2 held by the holder 120 from getting in the way when the third operating lever 44b3 is operated. The same can be said for the fourth operating lever 44b4.

[0104] Additionally, the front holding portion 122a of the second holding portion 122 and the multiple switches 44b5 are positioned side by side in the left-right direction. Furthermore, a cup holder 44c is provided behind the multiple switches 44b5. More specifically, the cup holder 44c is located between the front holding portion 122a and the rear holding portion 122b, to the left of the handle 130. The cup holder 44c is provided to hold, for example, a beverage cup, bottle, or the like.

[0105] [5. Supplementary Information] In this embodiment, the left side is defined as "one side in the width direction" and the right side is defined as "the other side in the width direction," but this is not limited to this. For example, the right side may be defined as "one side in the left-right direction" and the left side may be defined as "the other side in the left-right direction." In other words, the left and right sides may be reversed. Specifically, the cabin 100 may be disposed on the upper right side of the upper rotating body 4, and the side window WR and the guard member 105 may be disposed on the left side of the cabin 100.

[0106] The hydraulic excavator 1 may be configured to use an electric motor to drive the hydraulic pump instead of the engine EG (for example, an electric excavator).

[0107] In this embodiment, a hydraulic excavator 1 has been described as an example of a work machine, but the work machine is not limited to the hydraulic excavator 1 and may be a construction machine such as a mobile crane. The work machine may also be an agricultural machine such as a combine harvester.

[0108] [6. Notes] The hydraulic excavator 1 described in this embodiment can also be expressed as a work machine described in the following supplementary notes.

[0109] The work machine in Appendix (1) is A work machine in which a cabin is disposed on one side in the width direction, The cabin is a first transparent plate that is detachably disposed at the front lower portion; a side window disposed on the other side in the width direction; a guard member spanning the side window from the front side to the rear side; a first holding portion that holds, from above, the first transparent plate detached from the front lower portion; a second holding portion that holds the detached first transparent plate from below, the first holding portion is disposed above the guard member, The second holding portion is disposed below the guard member.

[0110] The work machine of supplementary note (2) is the work machine of supplementary note (1), The guard member is a first guard member located at the top in the vertical direction; a second guard member located at the bottom in the vertical direction, the first holding portion is disposed above the first guard member, The second holding portion is disposed below the second guard member.

[0111] The work machine of supplementary note (3) is a work machine described in supplementary note (1) or (2), The first holding portion detachably holds the first transparent plate.

[0112] The work machine of supplementary note (4) is a work machine according to any one of supplementary notes (1) to (3), The second holding portion holds the first transparent plate so that it can be inserted and removed.

[0113] The work machine of supplementary note (5) is a work machine according to any one of supplementary notes (1) to (4), the side window includes a second transparent panel separating the interior and exterior of the cabin; The second transparent plate is disposed between the guard member and the first and second holding portions.

[0114] The work machine of supplementary note (6) is the work machine according to supplementary note (5), the first holding portion and the second holding portion are disposed on one side in a width direction with respect to the second transparent plate, The guard member is disposed on the other side in the width direction relative to the second transparent plate.

[0115] The work machine of supplementary note (7) is a work machine according to supplementary note (5) or (6), The first holding portion has an opening facing the second transparent plate.

[0116] The work machine of supplementary note (8) is a work machine according to any one of supplementary notes (5) to (7), The second holding portion is a front holding portion that holds the first transparent plate from the front; and a rear holding portion that holds the first transparent plate from behind.

[0117] The work machine of supplementary note (9) is the work machine according to supplementary note (8), The cabin has a rear wall located on the rear side of the cabin, The rear holding portion is attached to the rear wall.

[0118] The work machine of supplementary note (10) is the work machine according to supplementary note (9), the rear wall includes an inclined surface portion that inclines rearward from the bottom to the top, The first transparent plate includes an inclined side portion that inclines along the inclined surface portion when held by the first holding portion and the second holding portion.

[0119] The work machine of supplementary note (11) is a work machine according to any one of supplementary notes (8) to (10), The front holding portion and the rear holding portion are disposed opposite the second transparent plate and spaced apart in the front-to-rear direction of the cabin.

[0120] The work machine of supplementary note (12) is the work machine according to supplementary note (11), The cabin has a handle located on one side in the width direction with respect to the side window, between the front holding portion and the rear holding portion.

[0121] The work machine of supplementary note (13) is a work machine according to any one of supplementary notes (1) to (11), The cabin has a handle located below the first transparent plate held by the first holding portion and the second holding portion.

[0122] The work machine of supplementary note (14) is a work machine according to any one of supplementary notes (1) to (13), The vehicle further includes a work implement disposed on the other side in the width direction relative to the cabin.

[0123] Although the embodiments of the present invention have been described above, the scope of the present invention is not limited to these, and the invention can be expanded or modified without departing from the spirit of the invention. [Industrial Applicability]

[0124] The present invention can be used in work machines such as construction machines and agricultural machines. [Explanation of symbols]

[0125] 1. Hydraulic excavator (work machine) 3 Work equipment 100 Cabin 100B back wall 100FD front lower 105 Guard material 105a first guard member 105b second guard member 107a1 Slope section 121 1st holding part 121b2 opening 122 Second holding part 122a Front retainer 122b Rear holding part 130 Toride IS internal Outside the OS WF2 1st transparent plate WF2b Slanted side WR side window WR2 2nd transparent plate

Claims

1. A work machine in which a cabin is disposed on one side in the width direction, The cabin is a first transparent plate detachably disposed at the front lower portion; a side window disposed on the other side in the width direction; a guard member spanning the side window from the front side to the rear side; a first holding portion that holds, from above, the first transparent plate detached from the front lower portion; a second holding portion that holds the detached first transparent plate from below, the first holding portion is disposed above the guard member, The second holding portion is disposed below the guard member.

2. The guard member is a first guard member located at the top in the vertical direction; a second guard member located at the bottom in the up-down direction, the first holding portion is disposed above the first guard member, The work machine according to claim 1 , wherein the second holding portion is disposed below the second guard member.

3. The work machine according to claim 1 , wherein the first holding portion detachably holds the first transparent plate.

4. The work machine according to claim 1 , wherein the second holding portion holds the first transparent plate so as to be insertable and removable.

5. the side window includes a second transparent panel separating the interior and exterior of the cabin; The work machine according to claim 1 , wherein the second transparent plate is disposed between the guard member and the first holding portion and the second holding portion.

6. the first holding portion and the second holding portion are disposed on one side in a width direction with respect to the second transparent plate, The work machine according to claim 5 , wherein the guard member is disposed on the other side in the width direction of the second transparent plate.

7. The work machine according to claim 5 , wherein the first holding portion has an opening facing the second transparent plate.

8. The second holding portion is a front holding portion that holds the first transparent plate from the front; The work machine according to claim 5 , further comprising: a rear holding portion that holds the first transparent plate from behind.

9. The cabin has a rear wall located on the rear side of the cabin, The work machine according to claim 8 , wherein the rear support portion is attached to the rear wall.

10. the rear wall includes an inclined surface portion that inclines rearward from the bottom to the top, The work machine according to claim 9 , wherein the first transparent plate includes an inclined side portion that inclines along the inclined surface portion when held by the first holding portion and the second holding portion.

11. The work machine according to claim 8 , wherein the front holding portion and the rear holding portion are arranged opposite the second transparent plate and spaced apart in the front-to-rear direction of the cabin.

12. The work machine according to claim 11, wherein the cabin has a handle located on one side in the width direction of the side window, between the front holding portion and the rear holding portion.

13. The work machine according to claim 1 , wherein the cabin has a handle positioned below the first transparent plate held by the first holding portion and the second holding portion.

14. The work machine according to claim 1 , further comprising a work implement disposed on the other side in the width direction of the cabin.

Images