Work equipment

Abstract

In a work machine in which the rear of a support body that supports the rear of the driver's seat protector is supported by a weight, the weight is made easily detachable. [Solution] The work machine comprises a machine body, a driver's seat mounted on the machine body, a driver's seat protector that protects the driver's seat, a support body that supports the driver's seat protector, the support body having a mounting portion on which the driver's seat protector is placed, and a front leg portion that extends forward and downward from the mounting portion and is attached to the machine body, a weight provided at the rear of the machine body, and a connecting member that connects the upper part of the weight to the support body, wherein the weight supports a part of the support body.

Description

Technical Field

[0001] The present invention relates to a working machine such as a backhoe.

Background Art

[0002] Conventionally, a working machine disclosed in Patent Document 1 below is known. The working machine disclosed in Patent Document 1 includes a machine body, a driver's seat mounted on the machine body, a cabin which is a driver's seat protector, a support (support member) that supports the rear part of the cabin, and a weight provided at the rear part of the machine body. The support has a mounting portion (upper plate) on which the rear part of the cabin is placed, and front legs (first front leg, second front leg) that extend downward and forward from the mounting portion.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the working machine disclosed in Patent Document 1 above, the support that supports the rear part of the cabin and the weight are separated and arranged separately, and since it is necessary to provide rear legs (first rear leg, second rear leg) for supporting the rear part of the support, there is a problem that the number of parts is large and the total weight is heavy. Therefore, it is conceivable to support the rear part of the cabin with the weight and make the weight also serve as the function of the rear legs. However, in that case, when removing the weight for repair and maintenance, etc., it is necessary to remove it up to the cabin, which is a troublesome problem.

[0005] The present invention has been made in view of the above problems, and an object thereof is to make the weight easily detachable in a working machine that supports the rear part of a support that supports the rear part of a driver's seat protector with the weight.

Means for Solving the Problems

[0006] An implement according to one embodiment of the present invention comprises a machine body, a driver's seat mounted on the machine body, a driver's seat protector that protects the driver's seat, a support body that supports the driver's seat protector, the support body having a mounting portion on which the driver's seat protector is placed, and a front leg portion that extends forward and downward from the mounting portion and is attached to the machine body, a weight provided at the rear of the machine body, and a connecting member that connects the upper part of the weight to the support body, wherein the weight supports a part of the support body. [Effects of the Invention]

[0007] According to the work machine of the present invention, the support body that supports the driver's seat protector and the upper part of the weight are connected by a connecting member, so the weight can be easily removed from the machine by releasing the connection between the weight and the connecting member. [Brief explanation of the drawing]

[0008] [Figure 1] This is a left side view of the work machine. [Figure 2] This is a right side view of the work machine. [Figure 3] This is a schematic front view of the work machine. [Figure 4] This is a schematic rear view of the work machine. [Figure 5] This is a schematic plan view of the work machine. [Figure 6] This is a perspective view of the work equipment from the left rear. [Figure 7] This is a schematic plan view showing the arrangement of equipment in the work machine. [Figure 8] This is a front perspective view showing the substrate and support members. [Figure 9] This is a side view showing the circuit board, cabin, and support members. [Figure 10] This is a rear perspective view showing the substrate and support members. [Figure 11] This diagram shows the support members (front support member, rear support member). [Figure 12] This is a rear perspective view of the first component (weight). [Figure 13] It is a front perspective view of the first member (weight). [Figure 14] It is a view showing a fixing structure of the first member (weight) to the substrate. [Figure 15] It is a front perspective view showing the substrate and the rear support member. [Figure 16] It is a view showing a structure in which the first member and the front support member are connected by a second member (connecting member). [Figure 17] It is a view showing a support member configured by connecting the first member and the front support member by a second member (connecting member). [Figure 18] It is a view of the fan shroud and the cooling fan seen from the right rear. [Figure 19] It is a side cross-sectional view showing the fan shroud, the first member, and the first sealing material. [Figure 20] It is a view of the engine, the cooling fan, the fan shroud, and the first sealing material seen from the rear. [Figure 21] It is a view of the fan shroud, the first member, and the first sealing material seen from the left front. [Figure 22] It is a rear perspective view showing a capacitor unit placed on the upper surface of the second member behind the cabin. [Figure 23] It is a side cross-sectional view showing the capacitor unit, the capacitor cover, the rear support member, etc. [Figure 24] It is a rear perspective view showing a support frame for supporting the capacitor body, etc. [Figure 25] It is a side view of the substrate and the support members (front support member, rear support member). [Figure 26] It is a rear perspective view showing a state in which the capacitor unit is covered with a capacitor cover behind the cabin. [Figure 27] It is a rear perspective view showing a state in which the capacitor cover is placed on the upper surface of the rear support member. [Figure 28] It is a rear perspective view showing the substrate, the support member, and the capacitor cover. [Figure 29] It is a rear perspective view of the capacitor cover. [Figure 30] This is a front perspective view of the capacitor cover. [Figure 31] This is a front perspective view showing the circuit board, floorboard, rear panel, driver's seat support, driver's seat, etc. [Figure 32] This is a side view showing the circuit board, floor plate, rear plate, driver's seat support, driver's seat, etc. [Figure 33] This is a front perspective view showing the floorboard, rear panel, and driver's seat support. [Figure 34] This is a side view showing the floorboard, rear panel, and driver's seat support. [Figure 35] This is a forward perspective view showing the driver's seat support. [Figure 36] This diagram shows the connection structure of the driver's seat support to the floorboard and rear panel. [Figure 37] This is a perspective view showing the floorboard, base, driver's seat support, tool storage area, etc. [Figure 38] This diagram shows the tool storage compartment with the lid removed from the base plate. [Figure 39] This is a side perspective cross-sectional view showing the floorboard, base, driver's seat support, tool storage area, etc. [Figure 40] This is a side view showing the rear of the canopy supported by the support section of the rear panel. [Modes for carrying out the invention]

[0009] Preferred embodiments of the present invention will be described below with appropriate reference to the drawings. In this embodiment, a backhoe, which is a slewing work machine, is exemplified as the work machine 1. However, the work machine 1 is not limited to a backhoe.

[0010] Figure 1 is a left side view of the implement 1. Figure 2 is a right side view of the implement 1. Figure 3 is a schematic front view of the implement 1. Figure 4 is a schematic rear view of the implement 1. Figure 5 is a schematic top view of the implement 1. Figure 6 is a perspective view of the implement 1 from the left rear.

[0011] As shown in Figures 1 and 2, the work machine 1 comprises a machine body (turntable) 2, a travel device 3, and a work device 4. Note that the work device 4 is omitted in Figures 3 to 6. The machine body 2 is equipped with a driver's seat 7 in which the operator (driver) sits, and a cabin 8 which is a driver's seat protector that protects the driver's seat 7.

[0012] In the following, the direction towards the front of the operator seated in the operator's seat 7 of the work machine 1 (arrow A1 direction) will be described as the front, and the direction towards the rear of the operator (arrow A2 direction) will be described as the rear. Also, the direction towards the left of the operator (arrow B1 direction) will be described as the left, and the direction towards the right of the operator (arrow B2 direction) will be described as the right. Furthermore, the horizontal direction (left-right direction), which is perpendicular to the front-rear direction K1, will be described as the machine width direction K2.

[0013] The running gear 3 is a crawler-type running gear that supports the machine body 2 so that it can move. The running gear 3 has a left running gear 3L that supports the lower left part of the machine body 2 and a right running gear 3R that supports the lower right part of the machine body 2. In this embodiment, a crawler-type running gear 3 is used, but the running gear 3 is not limited to this, and a wheel-type running gear or the like may also be used. A dozer device 9 is mounted on the front of the running gear 3.

[0014] As shown in Figure 1, the aircraft body 2 is supported on the running gear 3 via a slewing bearing 10 so as to be able to rotatably around a slewing axis X1, which is an axis extending vertically. As shown in Figures 3 to 5, the cabin 8 is mounted on the left and forward side of the aircraft body 2.

[0015] The cabin 8 has a roof 11 that covers the top of the driver's seat 7, a front support 12 that supports the front of the roof 11, and a rear support 13 that supports the rear of the roof 11. The front support 12 has a left front support 12L located to the left front of the driver's seat 7 and a right front support 12R located to the right front of the driver's seat 7. The rear support 13 has a left rear support 13L located to the left rear of the driver's seat 7 and a right rear support 13R located to the right rear of the driver's seat 7.

[0016] The front of the cabin 8 is provided with a front panel having a front window 8a. The front of the cabin 8 is also provided with a front panel having a rear window 8b. The left side of the cabin 8 is provided with a door panel having a left side window 8c. The right side of the cabin 8 is provided with a side panel having a right side window 8d. Each window is made of a light-transmitting material (such as glass).

[0017] The front of the machine body 2 is provided with a support bracket 14 and a swing bracket 15 that support the work device 4. The support bracket 14 is provided so as to protrude forward from the machine body 2. The swing bracket 15 is attached to the front of the support bracket 14 so as to be able to swing around a vertical axis (an axis that extends in the vertical direction).

[0018] As shown in Figures 1 and 2, the working device 4 is mounted on the front of the machine body 2. The working device 4 has a boom 16, an arm 17, and a bucket 18. The base of the boom 16 is pivotally attached to the upper part of the swing bracket 15 so as to be rotatable around a horizontal axis (an axis extending in the machine body width direction K2). The arm 17 is pivotally attached to the tip side of the boom 16 so as to be rotatable around a horizontal axis. The bucket 18 is provided on the tip side of the arm 17 so as to be able to perform scooping and dumping operations.

[0019] The work device 4 can be fitted with other work tools (hydraulic attachments) that can be driven by a hydraulic actuator, either in place of or in addition to the bucket 18. Examples of other work tools include hydraulic breakers, hydraulic crushers, angle brooms, earth augers, pallet forks, sweepers, mowers, snow blowers, and the like.

[0020] The swing bracket 15 is made swingable by the extension and retraction of the swing cylinder C1. The boom 16 is made swingable by the extension and retraction of the boom cylinder C2. The arm 17 is made swingable by the extension and retraction of the arm cylinder C3. The bucket 18 is made capable of scooping and dumping operations by the extension and retraction of the bucket cylinder C4. The swing cylinder C1, boom cylinder C2, arm cylinder C3, and bucket cylinder C4 are composed of hydraulic cylinders (hydraulic actuators).

[0021] As shown in Figures 1 and 7, the prime mover 20 is located at the rear of the aircraft body 2. The prime mover 20 is located in a prime mover chamber 21 provided at the rear of the aircraft body 2. The prime mover 20 is a diesel engine. The prime mover 20 may also be a gasoline engine or an electric motor, or it may be a hybrid type having both an engine and an electric motor. A cooling fan 22 is attached to the right side of the prime mover 20. The cooling fan 22 is driven by the prime mover 20 and generates cooling air that flows from outside the aircraft body 2 toward the prime mover 20. More specifically, the cooling fan 22 is a suction-type fan that draws in air (outside air) from the right side of the aircraft body 2 and flows it toward the prime mover 20.

[0022] To the right of the cooling fan 22 are a radiator 23, an oil cooler 24, and a reserve tank 29. The radiator 23 is a cooler that cools the coolant that cools the prime mover 20. The oil cooler 24 is a cooler that cools the return hydraulic fluid that returns from hydraulic actuators such as hydraulic cylinders and hydraulic motors. These coolers are cooled by the cooling air drawn in by the cooling fan 22. The reserve tank 29 stores reserve coolant for the radiator 23.

[0023] The aircraft body 2 has a slewing frame 25 (see Figure 8) which forms the skeleton of the aircraft body 2. The slewing frame 25 has a base plate (slewing base plate) 26 that forms the bottom of the aircraft body 2, and longitudinal ribs (left longitudinal rib 27L, right longitudinal rib 27R) erected on the base plate 26 and extending in a substantially front-rear direction. The base plate 26 is formed of a thick steel plate or the like. The base plate 26 is supported on the traveling device 3 via a slewing bearing 10 (see Figure 1) so as to be rotatable around the slewing axis X1.

[0024] The slewing frame 25 has a support bracket 14 and a partition plate 28. The support bracket 14 is provided at the front of the base plate 26. A swing bracket 15 is attached to the support bracket 14, and the base end of the working device 4 (boom 16) is attached to the swing bracket 15 (see Figures 1 and 2). The partition plate 28 is connected to the rear of the longitudinal rib 27 and extends in the width direction of the machine body. The partition plate 28 separates the lower part of the motor chamber 21 from the space in front of the motor chamber 21. The partition plate 28 has its surface facing in the front-rear direction and is positioned at the rear of the base plate 26, spanning from one side (left) to the other side (right) in the width direction of the machine body.

[0025] As shown in Figures 1, 2, 4, and 6, the work machine 1 is equipped with a bonnet 30 located at the rear of the machine body 2. The bonnet 30 covers the engine chamber 21 (see Figures 1 and 7) where the prime mover 20 is located. The bonnet 30 includes a rear bonnet 31, a left-side bonnet 32, and a right-side bonnet 33. The rear bonnet 31 covers the rear of the engine chamber 21. The left-side bonnet 32 ​​covers the left side of the engine chamber 21. The right-side bonnet 33 covers the right side of the engine chamber 21. The right-side bonnet 33 is provided with an opening 33a for taking in outside air into the engine chamber 21. A mesh plate is placed in the opening 33a.

[0026] As shown in Figures 1, 2, and 4, the rear bonnet 31 is located behind the cabin 8. The rear bonnet 31 is located below and behind the rear window 8b of the cabin 8. The rear bonnet 31 covers the rear of the engine compartment 21, but does not cover the top of the engine compartment 21.

[0027] As shown in Figure 9, a support member 40 for supporting the cabin 8 is provided on the upper part of the substrate 26. As shown in Figures 8 to 10, the support member 40 has a front support member 41 and a rear support member 45. The front support member 41 is a support body that supports the rear of the cabin 8. The front support member 41 is positioned in front of the rear support member 45 and is connected to the rear support member 45. The rear support member 45 is connected to the front support member 41 and supports the rear of the cabin 8.

[0028] As shown in Figures 8 and 11, the front support member (support body) 41 has a mounting portion 42 on which the rear of the cabin 8 is placed, and a front leg portion 43 that extends forward and downward from the mounting portion 42 and is attached to the aircraft body 2. The mounting portion 42 is formed in a flat plate shape and extends in the direction of the aircraft body width. The rear of the cabin 8 is placed on the upper surface of the mounting portion 42 via a mounting member 35 including vibration-damping rubber (see Figure 23).

[0029] As shown in Figure 8, the front leg portion 43 has a left front leg portion 43L and a right front leg portion 43R. The left front leg portion 43L extends forward and downward from the left side of the mounting portion 42. The right front leg portion 43R extends forward and downward from the right side of the mounting portion 42. The lower part of the front leg portion 43 is fixed to a support plate 28a provided on the upper part of the partition plate 28. A partition plate 44 is provided between the left front leg portion 43L and the right front leg portion 43R. The partition plate 44 separates the upper part of the engine chamber 21 from the space in front of the engine chamber 21 above the partition plate 28.

[0030] As shown in Figure 9, the rear support member 45 is located at the rear of the cabin 8. The rear support member 45 has a first member 46 and a second member 47. The first member 46 is fixed to the rear of the base plate 26. The second member 47 is fixed to the upper part of the first member 46.

[0031] The first member 46 is a counterweight for balancing the weight of the work device 4 in the front-rear direction of the machine body 2. In the following description, the first member 46 may be referred to as the weight 46. As shown in Figures 12 and 13, the first member (weight) 46 has a first part 46a and a second part 46b.

[0032] The first part 46a is located at the bottom of the first member 46. Hereinafter, the first part 46a may be referred to as the lower part 46a. The first part (lower part) 46a is fixed to the substrate 26 and extends in the width direction of the machine. The second part 46b is located above the first part 46a. The second part 46b has a left part 46b1, a right part 46b2, and an upper part 46b3. The left part 46b1 extends upward from the left side of the lower part 46a. The right part 46b2 extends upward from the right side of the lower part 46a. The upper part 46b3 extends in the width direction of the machine and connects the upper end of the left part 46b1 and the upper end of the right part 46b2.

[0033] A rear bonnet 31 (see Figures 4 and 6) is attached to the first member 46. As shown in Figures 12 and 13, the first member 46 has an opening 46d surrounded by a first portion (lower portion) 46a, a left portion 46b1, a right portion 46b2, and an upper portion 46b3. The opening 46d is formed in a roughly rectangular shape when viewed from the rear. The rear bonnet 31 is attached so as to cover the opening 46d from the rear.

[0034] The left side of the rear bonnet 31 is attached to the left portion 46b1 via a hinge member (not shown). The rear bonnet 31 can be opened towards the rear using the hinge member as a pivot point. By opening the rear bonnet 31, it becomes possible to access the engine compartment 21 from the rear through the opening 46d.

[0035] The rear of the left portion 46b1 is covered by the left side bonnet 32. The rear of the right portion 46b2 is covered by the right side bonnet 33. The rear of the upper portion 46b3 is covered by the condenser cover 70, which will be described later. As a result, only the lower portion 46a of the first member 46 is exposed and visible from the outside (see Figure 4).

[0036] As shown in Figure 12, the first member 46 has a mounting portion 46c for attaching the left side bonnet 32. The mounting portion 46c is provided on the upper left of the left portion 46b1 of the second portion 46b and on the left side of the upper surface of the first portion 46a. The right portion 46b2 of the second portion 46b is provided with a mounting portion 46k to which the fan cover 36 is attached. The fan cover 36 is positioned behind the cooling fan 22 (see Figures 7 and 21). This prevents hands from coming into contact with the cooling fan 22 during maintenance work, etc.

[0037] As shown in Figure 2, the front end of the first member (weight) 46 is located behind the roof 11 of the cabin 8. In Figure 2, the virtual line L1 is a line indicating the longitudinal position of the front end of the first member 46, and the virtual line L2 is a line indicating the longitudinal position of the rear end of the roof 11. Also, the front end of the first member 46 is located behind the driver's seat 7.

[0038] Thus, the front end of the first component 46, which is the weight, is located towards the rear of the machine body 2. The length of the first component 46 in the front-rear direction is shorter than the length of the weight attached to conventional work implements (backhoes) in the front-rear direction. As a result, the center of gravity of the machine body 2 can be moved further back, so that even if the weight of the first component 46 is lighter than before, a good balance of the center of gravity in the front-rear direction can be maintained. Therefore, it becomes possible to lighten the entire work implement 1.

[0039] Furthermore, even if the height of the first component 46, which is the weight, is increased compared to the weight of conventional work machines, it is possible to suppress the deterioration of the weight balance. In addition, since the distance from the pivot axis X1 of the machine body 2 to the first component (weight) 46 can be increased, the stability of the machine body 2 during rotation can be improved.

[0040] As shown in Figures 12 and 13, the first part 46a has a fixing part 46e that is fixed to the substrate 26. As shown in Figure 14, a rear base 26a extending in the width direction of the machine is provided on the rear upper surface of the substrate 26. The rear base 26a is provided with a fixed part 26b to which the first member (weight) 46 is fixed. The first member 46 is fixed to the rear base 26a of the substrate 26 by inserting a bolt BL through a through hole 46f formed in the fixing part 46e and screwing the bolt BL into a threaded hole formed in the fixed part 26b. The fixing part 46e is fixed to the fixed part 26b of the rear base 26a from the rear. This determines the front-rear position of the first member 46 relative to the substrate 26.

[0041] As shown in Figures 13 and 15, the first part 46a has a mounting portion 46g that is placed on the rear base 26a of the substrate 26. The mounting portion 46g is placed on the rear base 26a of the substrate 26 from above. This determines the vertical position of the first member 46 relative to the substrate 26.

[0042] As described above, by determining the front-to-back and up-to-down positions of the first member 46 relative to the substrate 26, the position of the second member 47 relative to the substrate 26 can be adjusted when the position of the second member 47 relative to the first member 46 is adjusted, as will be described later.

[0043] As shown in Figures 16 and 17, the second member 47 is a connecting member that connects the upper part of the first member (weight) 46 to the front support member (support) 41. More specifically, the second member (connecting member) 47 connects the second part 46b of the first member 46 to the front support member 41. More specifically, the second member 47 connects the upper part 46b3 of the second part 46b to the front support member 41. Specifically, the second member 47 connects the upper part 46b3 of the second part 46b to the mounting portion 42 of the front support member 41.

[0044] The arrangement and configuration of the second member (connecting member) 47, and the connection structure between the first member (weight) 46 and the front support member 41 by the second member 47 will be described below.

[0045] As shown in Figures 16 and 17, the second member 47 is placed on top of the first member 46 and fixed in place. More specifically, the second member 47 is placed on the upper surface of the upper portion 46b3 of the first member 46 and fixed in place.

[0046] As shown in Figure 17, the second member 47 has a flat plate portion 47a and a vertical plate portion 47b. The second member 47 is formed in an L-shape in side view by the flat plate portion 47a and the vertical plate portion 47b. The flat plate portion 47a extends in the width direction of the aircraft so as to cover the upper surface of the upper portion 46b3 of the first member 46. The vertical plate portion 47b rises upward from the leading edge of the flat plate portion 47a. The vertical plate portion 47b extends in the width direction of the aircraft along the leading edge of the flat plate portion 47a.

[0047] As shown in Figure 16, the second member 47 has a first connecting portion 47c that is connected to the first member (weight) 46. The first connecting portion 47c has a first through hole 47d that penetrates the flat plate portion 47a in the vertical direction. Multiple (two) first through holes 47d are formed on the left and right sides of the flat plate portion 47a.

[0048] A first bracket 48 is fixed to the second member 47. The first bracket 48 is fixed to the left and right sides of the second member 47, respectively. The first bracket 48 is positioned to straddle the flat plate portion 47a and the vertical plate portion 47b. The first bracket 48 has a contact portion 48a that abuts against the rear surface of the vertical plate portion 47b and a fixing portion 48b that is fixed to the upper surface of the flat plate portion 47a.

[0049] The second member 47 has a second connecting portion 47e that is connected to the front support member (support body) 41. The second connecting portion 47e has a second through hole 47f. The second through hole 47f penetrates the contact portion 48a and the vertical plate portion 47b in the front-rear direction.

[0050] As shown in Figure 12, a first screw hole 46h is formed in the upper portion 46b3 of the first member (weight) 46. The first screw hole 46h extends downward from the upper surface of the upper portion 46b3. The first screw hole 46h is formed in the left and right portions of the upper portion 46b3, respectively.

[0051] As shown in Figure 16, the first member 46 and the second member 47 are connected by inserting the first bolt BL1 through the first through hole 47d and screwing the first bolt BL1 into the first threaded hole 46h. In this way, the first connecting portion 47c of the second member (connecting member) 47 and the first member (weight) 46 are connected by the first bolt BL1 which extends in the vertical direction.

[0052] As shown in Figure 12, a raised portion 46i is provided on the upper surface of the first member 46 (the upper surface of the upper portion 46b3). The raised portions 46i are provided on the left and right sides of the upper surface of the upper portion 46b3. The upper surface of the raised portion 46i is formed to be flat. When the first member 46 and the second member 47 are connected, the lower surface of the second member 47 abuts against the upper surface of the raised portion 46i.

[0053] A sealing material (not shown) is interposed between the upper surface of the first member 46 (the upper surface of the upper portion 46b3) and the lower surface of the second member 47. For example, ethylene propylene rubber (EPDM) is used as the material for the sealing material. By interposing the sealing material, the gap between the upper surface of the first member 46 (the upper surface of the upper portion 46b3) and the lower surface of the second member 47 can be sealed.

[0054] As described above, the second member 47 functions as a connecting member that connects the first member (weight) 46 and the front support member 41. By connecting the front support member 41 to the first member 46 via the second member 47, the strength (rigidity) of the front support member 41 can be improved. The second member 47 also functions as a shielding plate that prevents warm air from inside the engine chamber 21 from being released to the outside. Furthermore, the second member 47 also functions as a partition plate that separates the engine chamber 21 from the condenser 60, which will be described later.

[0055] As shown in Figure 16, a second bracket 49 is fixed to the front support member (support body) 41. The second bracket 49 is fixed to the lower surface of the mounting portion 42 of the front support member 41. The second bracket 49 has a contact portion 49a that abuts against the vertical plate portion 47b. A third through hole 49b is formed in the contact portion 49a, which penetrates the contact portion 49a in the front-rear direction. A nut (not shown) is fixed to the front surface of the contact portion 49a at a position corresponding to the third through hole 49b. The screw hole (second screw hole) of the nut extends in the front-rear direction.

[0056] As shown in Figure 16, the second bolt BL2 is inserted through the second through hole 47f and the third through hole 49b, and the second bolt BL2 is screwed into the threaded hole (second threaded hole) of the nut, thereby connecting the second member (connecting member) 47 and the front support member (support body) 41. In this way, the second connecting portion 47e of the second member 47 and the front support member 41 are connected by the second bolt BL2 which extends in the front-rear direction.

[0057] As described above, the first member 46 and the second member 47 are connected, and the second member 47 is connected to the front support member 41, thereby connecting the first member (weight) 46 and the front support member (support) 41 via the second member (connecting member) 47 (see Figure 17). The first member (weight) 46 and the front support member (support) 41 are then fixed to the base plate 26 as a single unit (see Figure 10). As a result, the first member (weight) 46 and the front support member (support) 41 become a single unit and can support the cabin 8 on the base plate 26 (see Figure 9). Therefore, it is possible to omit the rear leg members that were provided in the cabin support frame of conventional work machines (backhoes). In addition, by releasing the connection between the first member 46 and the second member 47, the first member 46 can be removed from the base plate 26 while the cabin 8 is supported on the base plate 26 by the front support member 41.

[0058] As described above, the work machine 1 supports a portion of the front support member (support) 41 by the first member 46 by connecting the first member (weight) 46 and the front support member (support) 41 via the second member (connecting member) 47. By releasing the connection between the first member 46 and the connecting member 47, the first member 46 can be removed from the machine body 2 while the support 41 remains attached to the machine body 2 with the driver's seat protector (cabin 8) placed on the mounting section 42.

[0059] The first through-hole 47d of the first connecting portion 47c can be an elongated hole extending in the front-rear direction. This allows the front-rear position of the first bolt BL1 relative to the first through-hole 47d to be changed. Therefore, the first connecting portion 47c can adjust the front-rear position of the first bolt BL1 fixed to the first member 46 relative to the second member 47. This makes it possible to adjust the front-rear position of the first member 46 relative to the second member 47.

[0060] The first through-hole 47d of the first connecting portion 47c can also be an elongated hole extending in the left-right direction (machine width direction). This allows the left-right position of the first bolt BL1 relative to the first through-hole 47d to be changed. Therefore, the first connecting portion 47c can adjust the left-right position of the first bolt BL1 fixed to the first member 46 relative to the second member 47. This makes it possible to adjust the left-right position of the first member 46 relative to the second member 47.

[0061] The second through-hole 47f of the second connecting portion 47e can be an elongated hole extending in the vertical direction. This allows the vertical position of the second bolt BL2 relative to the second through-hole 47f to be changed. Therefore, the second connecting portion 47e can be adjusted in the vertical position of the second member 47 relative to the second bolt BL2 fixed to the front support member (support) 41. This makes it possible to adjust the vertical position of the second member 47 relative to the front support member 41.

[0062] The second through-hole 47f of the second connecting portion 47e can also be an elongated hole extending in the left-right direction (machine width direction). This allows the left-right position of the second bolt BL2 relative to the second through-hole 47f to be changed. Therefore, the second connecting portion 47e can be adjusted in the left-right position of the second member 47 relative to the second bolt BL2 fixed to the front support member (support body) 41. This makes it possible to adjust the left-right position of the second member 47 relative to the front support member 41.

[0063] As described above, by connecting the first member (weight) 46 and the front support member (support) 41 via the second member (connecting member) 47, and by making the first through hole 47d and / or the second through hole 47f elongated holes, it becomes possible to adjust the position of the first member 46 relative to the second member 47 and / or the position of the second member 47 relative to the front support member 41. This allows for assembly while absorbing variations in the dimensions of the first member 46 and the front support member 41.

[0064] By providing the adjustment mechanism described above, when assembling the first member (weight) 46, the front support member (support) 41, and the second member (connecting member) 47 to the substrate 26, assembling them in the order of front support member 41, first member 46, and second member 47 allows for assembly that absorbs the dimensional variations described above.

[0065] In the above description, the front support member 41 was described as a support body that supports the rear of the cabin 8, but it may also be a support body that supports the rear of the canopy (rear support column). In other words, the front support member (support body) 41 supports the rear of the driver's seat protector (cabin or canopy). If the driver's seat protector is a canopy, the rear support columns of the canopy (right rear support column and left rear support column) are placed on the mounting portion 42 of the front support member 41.

[0066] As shown in Figure 7, the work machine 1 is equipped with a fan shroud 50. As shown in Figure 18, the fan shroud 50 is positioned around the cooling fan 22. The outer surface of the fan shroud 50 has an upper surface 50a located above the cooling fan 22, a lower surface 50b located below the cooling fan 22, a first side surface 50c located on one side of the cooling fan 22, and a second side surface 50d located on the other side of the cooling fan 22.

[0067] A sealing material 55 is arranged along the outer surface of the fan shroud 50. The sealing material 55 includes a first sealing material 56 and a second sealing material 57. The first sealing material 56 is arranged along the first side surface 50c. The second sealing material 57 is arranged along the top surface 50a and the second side surface 50d.

[0068] As shown in Figure 20, the first sealing material 56 extends in the vertical direction. The region from the upper end to the middle in the vertical direction has a constant position in the left-right direction (aircraft width direction K2), but the region from the middle in the vertical direction to the lower end has an inclined portion 56a that slopes downwards, shifting to one side (to the right) in the aircraft width direction. In this way, the inclined portion 56a of the first sealing material 56 makes it less likely for the first sealing material 56 to shift, thus preventing a decrease in sealing performance.

[0069] The fan shroud 50 is positioned with its first side surface 50c facing rearward and its second side surface 50d facing forward. As shown in Figures 19 and 21, the first side surface 50c faces the first member (weight) 46 located at the rear of the fan shroud 50. The first sealing material 56 is positioned to fill the space between the first side surface 50c of the fan shroud 50 and the front surface (inner surface) of the first member 46. No other members are interposed between the first sealing material 56 and the first member 46.

[0070] As shown in Figures 13 and 15, the front (inner surface) of the first member 46 has a first curved portion 46j that curves inward toward the rear. The first curved portion 46j is formed on the front (inner surface) of the right portion 46b2 of the first member 46. As shown in Figures 18 and 19, the first side surface 50c has a second curved portion 50e that faces the first curved portion 46j and curves toward the rear. The second curved portion 50e is curved to follow the rotational trajectory of the outer end of the cooling fan 22.

[0071] As shown in Figures 19 and 21, the first sealant 56 is positioned to fill the gap between the first curved portion 46j and the second curved portion 50e. The first sealant 56 is curved to follow the first curved portion 46j and the second curved portion 50e. Since the first sealant 56 has an inclined portion 56a, the lower part of the first sealant 56 is not visible in the cross-sectional view of Figure 19. That is, in the cross-sectional view of Figure 19, the lower part of the first sealant 56 is located in front of the plane of the paper and is therefore not visible in the cross-section.

[0072] As described above, since the first sealing material 56 is positioned to fill the gap between the fan shroud 50 and the first member 46, there is no need to interpose another member (such as a sheet metal member) between the fan shroud 50 and the first member 46 to install the sealing material. This reduces the number of parts in the work machine 1.

[0073] The work machine 1 is equipped with an air conditioning system (air conditioner) that regulates the temperature inside the cabin 8. The air conditioning system includes an evaporator, a blower fan, a compressor, a condenser 60, an electric fan (condenser fan) 61, a receiver 62, etc. (see Figures 22, 23, etc.). These components are connected by piping, and refrigerant flows through them.

[0074] The evaporator cools the air blown into the cabin 8 by exchanging heat between the air blown in by the blower fan and the refrigerant. The compressor is a device that compresses the vaporized refrigerant. The condenser 60 is a cooling device (condenser) that cools the compressed refrigerant. The receiver 62 temporarily stores the condensed refrigerant. The evaporator and blower fan are located in the lower part of the cabin 8.

[0075] As shown in Figures 22 and 23, the electric fan 61, condenser 60, and receiver 62 of the air conditioning system are located at the rear of the cabin 8. The condenser 60 is located at the rear of the lower part of the rear window 8b of the cabin 8. The electric fan 61 is located between the condenser 60 and the cabin 8. The receiver 62 is located to the left of the condenser 60.

[0076] The capacitor 60 comprises a capacitor body 63 and a support frame 64 that supports the capacitor body 63. As shown in Figure 24, the support frame 64 comprises a support plate 65 having an opening 65a and a frame 66 provided around the support plate 65. The frame 66 is arranged to surround the capacitor body 63. The capacitor body 63 is positioned to face the opening 65a of the support plate 65.

[0077] A support plate 65 is provided at the lower part of the support frame 64 to support the support frame 64 on the upper surface of the rear support member 45. The support plate 65 is fixed to a stay 67 (see Figure 23) via fasteners such as bolts. The stay 67 is connected to a first bracket 48 which is mounted and fixed on the upper surface of the rear support member 45.

[0078] As shown in Figure 22, the capacitor 60 is mounted on the periphery of the cabin 8 and on the upper surface of the support member 40. Specifically, the capacitor 60 is mounted at the rear of the cabin 8 and in contact with the upper surface 45a of the rear support member (second member) 45. In other words, the capacitor 60 is mounted directly (without any other members) on the upper surface 45a of the rear support member 45. More specifically, as shown in Figure 23, the support plate 65 of the support frame 64 of the capacitor 60 is mounted in contact with the upper surface of the flat plate portion 47a of the second member 47 of the rear support member 45. No other members (such as the rear bonnet 31 or bonnet 30) are interposed between the upper surface 45a of the rear support member 45 and the lower surface of the capacitor 60.

[0079] In this way, by placing the condenser 60 in contact with the upper surface of the support member 40 (the upper surface 45a of the rear support member 45), the height of the condenser 60 can be reduced. This makes it possible to suppress the deterioration of the rearward visibility of the operator seated in the driver's seat 7, which would otherwise occur due to the placement of the condenser 60 behind the cabin 8.

[0080] As shown in Figures 17 and 25, the upper surface 45a of the rear support member 45 on which the capacitor 60 is placed is positioned lower than the upper surface of the mounting portion 42 of the front support member 41. By lowering the height of the upper surface 45a of the rear support member 45 in this way, it is possible to lower the height of the capacitor 60 that is placed in contact with the upper surface 45a of the rear support member 45.

[0081] As shown in Figure 23, the lower end of the capacitor 60, which is placed in contact with the upper surface of the rear support member 45, is lower than the upper surface of the mounting portion 42 of the front support member 41. Specifically, the lower end of the support plate 65 of the capacitor 60 is lower than the upper surface of the mounting portion 42 of the front support member 41. Also, the lower end of the capacitor body 63 is lower than the upper surface of the mounting portion 42 of the front support member 41. This makes it possible to lower the position of the upper end of the capacitor 60 (i.e., the height of the capacitor 60).

[0082] As shown in Figure 23, the work machine 1 is equipped with a capacitor cover 70. The capacitor cover 70 covers at least a portion of the capacitor 60 and at least a portion of the upper surface of the support member 40 (rear support member 45).

[0083] As shown in Figure 23, the rear of the capacitor 60 is covered by the capacitor cover 70. As shown in Figures 22 and 26, the capacitor cover 70 covers the rear, sides (left and right), and top of the capacitor 60. More specifically, the capacitor cover 70 covers the rear, sides (left and right), and top of the capacitor unit 68, which consists of the electric fan 61, the capacitor 60, and the receiver 62. The front and bottom of the capacitor cover 70 are open.

[0084] As shown in Figure 27, the capacitor cover 70 is placed on top of the support member 40 (rear support member 45). The capacitor cover 70 is fixed to the upper surface of the second member 47 of the rear support member 45 by the first fixing part 73, which will be described later. As a result, as shown in Figure 28, the capacitor cover 70 is positioned above the rear support member 45, which is connected to the front support member 41. Also, as shown in Figure 26, the capacitor cover 70 is positioned at the rear of the cabin 8.

[0085] As shown in Figure 23, the condenser cover 70 is positioned above the rear bonnet 31. The majority of the condenser cover 70 is located in front of the rear bonnet 31. The condenser cover 70 covers the area above the engine chamber 21 where the engine 20 is located, without going through the bonnet 30 such as the rear bonnet 31. The area where the condenser cover 70 covers the area above the engine chamber 21 without going through the bonnet 30 is the area in front of the dashed line LL in Figure 23 (in front of the upper front end of the rear bonnet 31).

[0086] The condenser cover 70 covers the top of the engine compartment 21, similar to the cover member (rear cover) located above the engine compartment at the rear of the cabin in conventional work equipment (backhoe). In other words, the condenser cover 70 covers the top of the engine compartment 21 in place of the conventional cover member.

[0087] As shown in Figures 29 and 30, the capacitor cover 70 has a cover body 71 and a protrusion 72. The cover body 71 covers at least a portion of the capacitor 60. More specifically, the cover body 71 covers the rear and sides (left and right) of the capacitor 60. More specifically, the cover body 71 covers the rear and sides (left and right) of the capacitor unit 68 including the capacitor 60.

[0088] The protruding portion 72 extends horizontally from the lower part of the cover body 71 and covers at least a portion of the support member 40 (rear support member 45). The protruding portion 72 extends outward in the width direction of the machine (left and right) from the lower part of the side surface of the cover body 71. The height of the protruding portion 72 is lower than the height of the cover body 71. Specifically, the height of the protruding portion 72 is less than half the height of the cover body 71.

[0089] The cover body 71 has a back plate 71a, a top plate 71b, a left side plate 71c, and a right side plate 71d. The back plate 71a covers the rear of the capacitor unit 68. The top plate 71b covers the top of the capacitor unit 68. The left side plate 71c covers the left side of the capacitor unit 68. The right side plate 71d covers the right side of the capacitor unit 68. The back plate 71a and the right side plate 71d are provided with mesh-like openings to allow air to pass through.

[0090] The protrusion 72 includes a left protrusion 72L and a right protrusion 72R. The left protrusion 72L protrudes to the left from the lower part of the left side plate 71c of the cover body 71. The right protrusion 72R protrudes to the right from the lower part of the right side plate 71d of the cover body 71. Because the capacitor cover 70 has the protrusions 72, the length of the capacitor cover 70 in the width direction of the unit is significantly longer than the length of the capacitor unit 68 in the width direction of the unit.

[0091] As shown in Figure 4, the length La of the condenser cover 70 in the aircraft width direction is longer than the length Lb of the rear bonnet 31 in the aircraft width direction. Also, the length La of the condenser cover 70 in the aircraft width direction is longer than the length Lc of the rear window 8b in the aircraft width direction. In the aircraft width direction, the condenser cover 70 overlaps with the entire rear bonnet 31, a portion of the left bonnet 32, and a portion of the right bonnet 33.

[0092] The condenser cover 70, by having a protrusion 72, can broadly cover the area above the motor chamber 21 in the width direction of the machine body. The condenser cover 70 covers the entire or substantially entire upper surface of the rear support member (second member) 45. The condenser cover 70 covers at least the entire length of the upper surface of the rear support member (second member) 45 in the width direction of the machine body. The condenser cover 70 may also cover the entire length of the upper surface of the rear support member (second member) 45 in the front-rear direction.

[0093] As a result, the capacitor cover 70 can have the function of the cover member (rear cover) that is provided by the conventional work machine (backhoe) described above. In other words, by having a protrusion 72, the capacitor cover 70 can not only cover the capacitor unit but also cover the upper surface of the rear support member that is provided by the conventional cover member. In short, the capacitor cover 70 is a component that integrates the conventional cover member with the capacitor cover that covers the capacitor unit. By using such a capacitor cover 70, the cover member provided by the conventional work machine can be omitted, and the number of parts can be reduced.

[0094] As shown in Figure 23, the lower part of the capacitor cover 70 is located behind the second member 47. The lower end 70a of the capacitor cover 70 is located below the second member 47. As a result, the capacitor cover 70 covers the rear of the second member 47. Also, the lower end 70a of the capacitor cover 70 is located below the upper surface of the first member 46. The rear end of the capacitor cover 70 is located below the upper surface of the first member 46 (the upper surface of the upper part 46b3). As a result, water can be prevented from entering through the gap between the first member 46 and the second member 47. In addition, the appearance of the work machine 1 when viewed from the rear can be improved.

[0095] As shown in Figures 29 and 30, the capacitor cover 70 has fixing parts (a first fixing part 73 and a second fixing part 74). The fixing parts fix the protruding part 72 to the support member 40 (rear support member 45). The first fixing part 73 is provided on the protruding part 72. The second fixing part 74 is provided on the upper part of the back plate 71a of the cover body 71.

[0096] The first fixing portion 73 has a first hole 73a through which a bolt can be inserted. The first hole 73a penetrates the protruding portion 72 in the vertical direction. As shown in Figure 27, a first screw receiving portion 45b is provided on the upper surface of the rear support member 45, and the protruding portion 72 is fixed to the rear support member 45 by screwing the bolt BLa inserted through the first hole 73a into the first screw receiving portion 45b. In this way, the capacitor cover 70 is fixed to the rear support member 45.

[0097] The second fixing portion 74 has a second hole 74a through which a bolt can be inserted. The second hole 74a penetrates the back plate 71a in the front-to-back direction. As shown in Figure 27, a second screw receiving portion 64a is provided on the upper part of the support frame 64 of the capacitor 60, and the cover body 71 is fixed to the support frame 64 by screwing a bolt BLb inserted through the second hole 74a into the second screw receiving portion 64a. In this way, the capacitor cover 70 is connected to the support frame 64.

[0098] However, the method of fixing the capacitor cover 70 is not limited to the method described above. For example, the first screw receiving portion 45b may be provided on the first bracket 48. Alternatively, the second screw receiving portion 64a may be provided on the rear support member 45. Furthermore, either the first fixing portion 73 or the second fixing portion 74 may be omitted.

[0099] As shown in Figures 1 to 3, the upper end of the condenser cover 70 is positioned lower than the midpoint between the upper and lower ends of the rear window 8b of the cabin 8, and also lower than the upper end of the backrest of the driver's seat 7. Furthermore, as shown in Figure 5, the condenser cover 70 is positioned inward from the outer edge (both ends in the width direction of the aircraft body) of the aircraft body 2 in a plan view.

[0100] As shown in Figure 23, the condenser body 63 is inclined so that it moves backward as it goes downward. The back plate 71a of the condenser cover 70 is positioned parallel to the rear surface of the condenser body 63 and is inclined so that it moves backward as it goes downward. The top plate 71b of the condenser cover 70 is inclined so that it moves downward as it goes backward. This makes it possible to suppress the deterioration of the rearward visibility of the operator seated in the driver's seat 7 due to the installation of the condenser cover 70.

[0101] As shown in Figures 31 and 32, the work machine 1 has a floor plate (step plate) 80 positioned below the driver's seat 7, and a rear plate 90 extending from the rear of the floor plate 80 to the rear of the driver's seat 7. In this embodiment, the floor plate 80 and the rear plate 90 are integrally formed. Specifically, the floor plate 80 and the rear plate 90 are inseparably connected and integrated by welding or the like. However, the floor plate 80 and the rear plate 90 may be detachably connected and integrated by bolts or the like. Also, the floor plate 80 and the rear plate 90 may be members that are not integrally formed (not connected to each other).

[0102] The floor plate 80 is positioned above the base plate 26. The floor plate 80 extends from below the driver's seat 7 towards the front and below the driver's seat 7, allowing the operator seated in the driver's seat 7 to rest their feet on it. Control pedals (not shown) and other equipment that the operator seated in the driver's seat 7 operates with their feet are positioned on the floor plate 80.

[0103] As shown in Figures 33 and 34, the rear plate 90 rises from the rear of the floor plate 80. The rear plate 90 has a vertical surface 91 extending upward from the floor plate 80 and a horizontal surface 92 extending horizontally. The horizontal surface 92 extends rearward from the upper end of the vertical surface 91. The horizontal surface 92 includes a first horizontal surface 92a and a second horizontal surface 92b provided at a different height from the first horizontal surface 92a. The second horizontal surface 92b is formed lower than the first horizontal surface 92a. The first horizontal surface 92a extends in the width direction of the machine below the driver's seat 7. The second horizontal surface 92b is provided to the left of the first horizontal surface 92a.

[0104] Furthermore, the rear plate 90 has an inclined surface 93 extending upward and rearward from the rear end of the horizontal surface 92, and an upper horizontal surface 94 extending rearward from the upper end of the inclined surface 93. The inclined surface 93 extends upward and rearward from the lower rear of the driver's seat 7. The upper horizontal surface 94 extends in the width direction of the aircraft behind the driver's seat 7 (see Figure 31). The upper horizontal surface 94 is a support part 94 that supports the rear of the driver's seat protector behind the driver's seat 7.

[0105] As shown in Figures 31 and 32, the work machine 1 is equipped with a driver's seat support 100 that supports the driver's seat 7 from below. As shown in Figure 35, the driver's seat support 100 has a first part 101 and a second part 102. The first part 101 and the second part 102 are formed integrally.

[0106] The first part 101 is connected to the floor plate 80. The second part 102 is connected to the rear plate 90. As a result, as shown in Figures 33 and 34, the driver's seat support 100 is connected to both the floor plate 80 and the rear plate 90. Specifically, the second part 102 is connected to the rear plate 90 at the front and below the upper horizontal plane (support part) 94. The first part 101 is connected to the floor plate 80 at the front and below the second part 102.

[0107] As shown in Figure 34, the first part 101 extends vertically, and its lower end is connected to the floor plate 80. The upper end of the first part 101 is connected to the front of the second part 102 by abutting from below. As shown in Figure 35, the first part 101 has a left leg 101L and a right leg 101R that are spaced apart in the width direction of the machine body. A connecting plate 103 is provided at the lower end of the first part 101 (left leg 101L and right leg 101R), and this connecting plate 103 is connected to the floor plate 80 by a connector such as a bolt.

[0108] As shown in Figure 35, the driver's seat support 100 has a reinforcing plate 104 connecting the first part 101 and the second part 102. The reinforcing plate 104 is positioned so that one side faces left and the other side faces right. In this embodiment, the reinforcing plate 104 connects the rear of the left leg 101L to the lower surface of the second part 102. The reinforcing plate 104 may also connect the rear of the right leg 101R to the lower surface of the second part 102.

[0109] As shown in Figures 33 and 34, the second part 102 extends in the front-rear direction, and its rear end is connected to the rear plate 90. As shown in Figure 35, the second part 102 has a base part 102a and an accessory part 102b. The base part 102a and the accessory part 102b are formed integrally. The base part 102a is a plate that extends in the horizontal direction. A pedestal 105 (see Figure 31) that supports the driver's seat 7 from below is fixed to the upper surface of the base part 102a. The accessory part 102b is formed higher than the base part 102a at the rear of the base part 102a.

[0110] As described above, the driver's seat support 100 has a first portion 101 connected to the floor plate 80 and a second portion 102 connected to the rear plate 90, which allows the load applied by the weight of the driver's seat 7 and the operator seated in the driver's seat 7 to be distributed to the floor plate 80 and the rear plate 90. Therefore, the downward deflection of the floor plate 80 can be suppressed. This prevents the operator from experiencing the discomfort of the driver's seat 7 moving up and down due to the deflection of the floor plate 80. In addition, the durability of the floor plate 80 can be improved.

[0111] In particular, when the floor plate 80 and the rear plate 90 are integrated, this integrated component becomes a large member that extends from the front to the rear of the machine body 2, and since this member is supported only at the front and rear, the discomfort and durability problems caused by the aforementioned deflection are likely to occur. However, this problem can be solved by having a first part 101 connected to the floor plate 80 and a second part 102 connected to the rear plate 90 of the driver's seat support 100.

[0112] While the above-mentioned problems can be solved, for example, by reinforcing the floor plate 80 with reinforcing materials such as thick plates, the above-mentioned configuration of the driver's seat support 100 allows the driver's seat support 100 to function as a reinforcing material, thus solving the above-mentioned problems without using reinforcing materials such as thick plates. Therefore, the strength of the floor plate 80 and rear plate 90 can be improved with a small number of parts.

[0113] As shown in Figures 34 and 35, the accessory portion 102b of the second portion 102 has an opposing plate 102c that faces the vertical surface 91 of the rear plate 90 from the front, and a mounting plate 102d that rests on the horizontal surface 92 of the rear plate 90. The opposing plate 102c extends upward from the rear end of the base portion 102a. The mounting plate 102d extends rearward from the upper end of the opposing plate 102c.

[0114] Because the attached portion 102b has an opposing plate 102c and a mounting plate 102d, the attached portion 102b has a portion that is bent at approximately a right angle, thereby improving the strength of the second portion 102. In addition, since the load applied from the driver's seat support 100 to the rear plate 90 can be received by the two surfaces of the rear plate 90 (horizontal surface 92 and vertical surface 91), deformation of the rear plate 90 becomes less likely.

[0115] As shown in Figure 35, the second part 102 has a side plate 102e that is positioned to connect the opposing plate 102c and the mounting plate 102d. One side of the side plate 102e faces to the left and the other side faces to the right. The presence of the side plate 102e in the second part 102 improves the strength of the accessory part 102b of the second part 102, making it less susceptible to deformation.

[0116] As shown in Figure 31, the second part 102 is equipped with an operating device 110 having an operating lever 111 for operating the work implement 1. The operating device 110 is mounted on the left side of the base part 102a. The operating device 110 is a device for operating the work implement 4 and / or the machine body 2. The operating device 110 is a device that performs at least one of the following operations: swinging operation of the boom 16, swinging operation of the arm 17, scooping and dumping operation of the bucket 18, and slewing operation of the machine body 2.

[0117] As shown in Figures 33 and 35, a first notch 102f is formed in the left rear of the base portion 102a for passing wiring (harness) connected to the operating device 110. A second notch 102g is formed in the right rear of the base portion 102a for passing air conditioning ducts, etc.

[0118] As shown in Figures 35 and 36, the second part 102 has connecting parts (first connecting part 102h, second connecting part 102i) that are connected to the rear plate 90. The mounting plate 102d of the accessory part 102b constitutes the first connecting part 102h. The first connecting part 102h is provided extending in the aircraft width direction K2. The second connecting part 102i is provided on the left rear of the base part 102a. The second connecting part 102i is provided at a position offset to one side (left side) in the aircraft width direction relative to the first connecting part 102h. The second connecting part 102i is located behind (near the rear of) the part on which the operating device 110 is mounted.

[0119] As shown in Figures 33 and 36, the connecting parts (first connecting part 102h and second connecting part 102i) are placed on and connected to the horizontal plane 92. Specifically, the first connecting part 102h is placed on and connected to the first horizontal plane 92a. The second connecting part 102i is placed on and connected to the second horizontal plane 92b. In other words, the first connecting part 102h and the second connecting part 102i are connected to horizontal planes of different heights (first horizontal plane 92a and second horizontal plane 92b).

[0120] As shown in Figure 35, the first connecting portion 102h has a plurality (2) of through holes 102j provided in the accessory portion 102b. By inserting bolts extending in the vertical direction through these through holes 102j and screwing the bolts onto nuts fixed to the back surface of the first horizontal surface 92a, the first connecting portion 102h is connected to the first horizontal surface 92a.

[0121] As shown in Figure 35, the second connecting portion 102i has a plurality (2) of through holes 102k provided on the left rear of the base portion 102a. The second connecting portion 102i is connected to the second horizontal surface 92b by inserting bolts extending in the vertical direction through these through holes 102k and screwing the bolts onto nuts fixed to the back surface of the second horizontal surface 92b.

[0122] In this way, by connecting the second portion 102 of the driver's seat support 100 to two horizontal planes of different heights (first horizontal plane 92a and second horizontal plane 92b), the load from the driver's seat support 100 can be received by the two horizontal planes of different heights (first horizontal plane 92a and second horizontal plane 92b) of the rear plate 90. Therefore, it is possible to prevent the load from concentrating on a part of the rear plate 90, and deformation of the rear plate 90 becomes less likely.

[0123] Furthermore, if the floor plate 80 bends downward and a force acts to pull the rear plate 90, which is connected to the second part 102 of the driver's seat support 100, forward or downward, this force can be received by the first horizontal plane 92a and the second horizontal plane 92b via the first connection part 102h and the second connection part 102i, thus making deformation of the rear plate 90 less likely.

[0124] Furthermore, since the second connection portion 102i is placed on and connected to the second horizontal plane 92b behind the portion on which the operating device 110 is mounted, the base portion 102a of the driver's seat support 100 is less likely to bend in the portion on which the operating device 110 is mounted. This prevents the operating device 110 from vibrating when it is in use.

[0125] As shown in Figure 31, a tool storage section 120 for accommodating tools is provided below the second section 102. The tool storage section 120 has a space SP (see Figure 34) formed behind the first section 101 and below the second section 102, and tools are housed in this space SP.

[0126] As shown in Figure 37, a front plate 121 is positioned at the front of the tool storage section 120. Side plates 122 are positioned on the sides of the tool storage section 120. As shown in Figure 38, the front plate 121 has a base plate 123 with an opening 123a and a lid 124 that is detachable from the base plate 123. When the lid 124 is attached to the base plate 123, the opening 123a of the base plate 123 is closed, and when the lid 124 is removed from the base plate 123, the opening 123a is opened, allowing access to the tool storage section 120.

[0127] As shown in Figure 39, the upper edge 123b and lower edge 123c of the opening 123a of the base plate 123 are bent forward. The upper edge 124b of the lid 124 is bent backward above the upper edge 123b of the opening 123a. The lower edge 124c of the lid 124 is bent backward below the lower edge 123c of the opening 123a.

[0128] As shown in Figures 35 and 39, a bent portion 102m is formed at the front end of the second portion 102, which is bent downwards. The bent portion 102m is positioned overlapping the upper part of the front plate 121 from the front. The lower end of the bent portion 102m is located below the upper end of the base plate 123 and above the upper end of the lid 124. The bent portion 102m has the function of improving the strength of the base plate 123 and preventing water from entering the tool storage portion 120 from the front.

[0129] In the above description, the support portion 94 of the rear plate 90 is the part that supports the driver's seat protector, but the support portion 94 may also be the part that supports the rear of the cabin or the part that supports the rear of the canopy. When the driver's seat protector is the cabin, the support portion 94 corresponds to the mounting portion 42 of the front support member 41 (see Figure 10, etc.) and supports the rear of the cabin 8. When the driver's seat protector is the canopy, the support portion 94 supports the support column 202 that supports the rear of the roof 201 of the canopy 200 (see Figure 40).

[0130] A preferred embodiment of the present invention provides a work machine 1 as described in the following items.

[0131] (Item A1) A work machine 1 comprising a machine body 2, a cabin 8 mounted on the machine body 2, a condenser 60 for an air conditioning system that adjusts the temperature inside the cabin 8, and a support member 40 that supports the cabin 8, wherein the condenser 60 is placed on the periphery of the cabin 8 and on the upper surface of the support member 40.

[0132] According to the work machine 1 related to item A1, since the capacitor 60 is located around the cabin 8 and rests on the upper surface of the support member 40, it is possible to reduce the height of the capacitor 60 located around the cabin 8. This improves visibility around the cabin 8 in work machines where the capacitor is located around the cabin.

[0133] (Item A2) The work machine 1 according to Item A1, comprising a prime mover 20 mounted on the machine body 2, and a capacitor cover 70 that covers at least a portion of the capacitor 60 and at least a portion of the upper surface of the support member 40.

[0134] According to the work machine 1 related to item A2, the capacitor cover 70 functions as a cover member that covers at least a portion of the upper surface of the support member 40, so there is no need to provide a separate cover member from the capacitor cover 70. Therefore, it is possible to omit the cover member and reduce the number of parts.

[0135] (Item A3) The work machine 1 according to item A1 or A2, wherein the support member 40 has a rear support member 45 positioned behind the cabin 8, and the condenser 60 is placed behind the cabin 8 and on the upper surface 45a of the rear support member 45.

[0136] According to the work machine 1 related to item A3, since the condenser 60 is placed on the upper surface 45a of the rear support member 45 located behind the cabin 8, it is possible to lower the height of the condenser 60 located behind the cabin 8. This makes it possible to improve visibility behind the cabin 8 in work machines in which the condenser is located behind the cabin.

[0137] (Item A4) The work machine 1 according to Item A3, comprising a prime mover 20 mounted on the machine body 2 and a capacitor cover 70 covering the rear of the capacitor 60, wherein the capacitor cover 70 is positioned above the rear support member 45 and covers at least the entire length in the width direction of the machine body of the upper surface of the rear support member 45.

[0138] According to the work machine 1 related to item A4, the capacitor cover 70 functions as a cover member that covers at least the entire length in the width direction of the machine body on the upper surface of the rear support member 45, so there is no need to provide a cover member separately from the capacitor cover 70. Therefore, it is possible to omit the cover member and reduce the number of parts.

[0139] (Item A5) The work machine 1 as described in Item A4, wherein the lower end portion 70a of the capacitor cover 70 is located behind the upper surface 45a of the rear support member 45 and below the upper surface 45a.

[0140] According to the work machine 1 related to item A5, the capacitor cover 70 can cover the rear support member 45 from the rear, thereby improving the appearance of the work machine 1 from the rear side.

[0141] (Item A6) The work machine described in Item A2 or A4, wherein the capacitor cover 70 is fixed to the support member 40.

[0142] According to the work machine 1 related to item A6, by fixing the condenser cover 70 to the support member 40, it is possible to keep the height of the condenser cover 70 low, thereby preventing a deterioration in visibility around the cabin 8.

[0143] (Item A7) The work machine 1 according to item A2 or A4, wherein the capacitor cover 70 has a cover body 71 that covers at least a part of the capacitor 60 and a projection 72 that protrudes horizontally from the lower part of the cover body 71 and covers at least a part of the support member 40.

[0144] According to the work machine 1 related to item A5, the condenser cover 70 has a protruding portion 72, which allows it to widely cover the upper part of the motor chamber 21 in the width direction of the machine body. Therefore, the condenser cover 70 can function as a cover member that covers the rear upper part of the motor chamber 21. As a result, the conventional cover member can be omitted, and the number of parts can be reduced.

[0145] (Item A8) The work machine 1 according to Item A7, wherein the protruding portion 72 has a fixing portion (first fixing portion 73) that is fixed to the support member 40.

[0146] According to the work machine 1 related to item A8, the capacitor cover 70 can be fixed to the support member 40 while preventing the cover body 71 from becoming larger.

[0147] (Item A9) The machine body 2 has a prime mover 20 mounted on the machine body 2, a circuit board 26 on which the prime mover 20 is mounted, and a rear bonnet 31 that covers the rear of the prime mover 20, and the rear support member 45 has a first member 46 fixed to the circuit board 26 and to which the rear bonnet 31 is attached, and a second member 47 fixed to the upper part of the first member 46, and the capacitor 60 is placed on the upper surface of the second member 47, the work machine 1 as described in Item A2 or A3.

[0148] According to the work machine 1 related to item A9, the capacitor 60 is placed on the upper surface of the second member 47, which prevents vibrations and shocks from being directly transmitted to the capacitor 60 from the first member 46 that is in contact with the substrate 26 and the bonnet 30.

[0149] (Item A10) The work machine 1 according to item A4 or A5, comprising a prime mover 20 mounted on the machine body 2 and a rear bonnet 31 covering the rear of the prime mover 20, wherein the length of the condenser cover 70 in the machine body width direction is longer than the length of the rear bonnet 31 in the machine body width direction.

[0150] According to the work machine 1 related to item A10, the condenser cover 70 can widely cover the upper part of the rear bonnet 31, so the conventional cover member can be omitted, and the number of parts can be reduced.

[0151] (Item A11) The work machine 1 according to Item A9, further comprising a capacitor cover 70 that covers the rear of the capacitor 60, wherein the lower end portion 70a of the capacitor cover 70 is located below the second member 47, thereby covering the rear of the second member 47.

[0152] According to the work machine 1 related to item A11, the condenser cover 70 can prevent water from entering through the gap between the first member 46 and the second member 47.

[0153] (Item A12) The work machine 1 according to item A9 or A11, wherein the support member 40 has a front support member 41 that is positioned in front of the rear support member 45 and connected to the rear support member 45, and the first member 46 is connected to the front support member 41 via the second member 47.

[0154] According to the work machine 1 related to item A12, the first member 46 and the front support member 41 can be connected via the second member 47. This allows the rear of the cabin 8 to be supported by the first member 46, the front support member 41, and the second member 47.

[0155] (Item A13) The work machine 1 according to any of items A3 to A5, A9 to A13, wherein the support member 40 has a front support member 41 that is positioned in front of the rear support member 45 and connected to the rear support member 45, the front support member 41 has a mounting portion 42 on which the rear of the cabin 8 is placed and a front leg portion 43 that extends forward and downward from the mounting portion 42, and the upper surface of the rear support member 45 is positioned lower than the upper surface of the mounting portion 42.

[0156] According to the work machine 1 related to item A13, the height of the upper surface of the rear support member 45 can be reduced, making it possible to reduce the height of the capacitor 60 that is placed in contact with the upper surface of the rear support member 45.

[0157] (Item B1) A work machine 1 comprising: a machine body 2; a driver's seat 7 mounted on the machine body 2; a driver's seat protector protecting the driver's seat 7; a support body 41 that supports the driver's seat protector, having a mounting portion 42 on which the driver's seat protector is placed and a front leg portion 43 extending forward and downward from the mounting portion 42 and attached to the machine body 2; a weight 46 provided at the rear of the machine body 2; and a connecting member 47 connecting the upper part of the weight 46 to the support body 41, wherein a part of the support body 41 is supported by the weight 46.

[0158] According to the work machine 1 related to item B1, a part of the support body 41 that supports the driver's seat protector can be supported by the weight 46, and the support body 41 that supports the driver's seat protector and the upper part of the weight 46 are connected by a connecting member 47. Therefore, by releasing the connection between the weight 46 and the connecting member 47, the weight 46 can be easily removed from the machine body 2.

[0159] (Item B2) The work machine 1 according to Item B1, wherein the connection between the weight 46 and the connecting member 47 is released, thereby allowing the weight 46 to be removed from the machine body 2 while the support 41 remains attached to the machine body 2 with the driver's seat protective body placed on the mounting part 42 described above.

[0160] According to the work machine 1 related to item B2, the weight 46 can be removed from the machine body 2 while the support body 41 remains attached to the machine body 2 with the driver's seat protector mounted on the mounting section 42. Therefore, when removing the weight 46 for repair or maintenance, it is not necessary to remove the driver's seat protector, thus reducing the amount of work required.

[0161] (Item B3) The work machine 1 according to item B1 or B2, comprising a base plate 26 on which a prime mover 20 is mounted, and a rear bonnet 31 covering the rear of the prime mover 20, wherein the weight 46 has a first portion 46a fixed to the base plate 26 and a second portion 46b positioned above the first portion 46a to which the rear bonnet 31 is attached, and the connecting member 47 connects the second portion 46b and the support 41.

[0162] According to the work machine 1 related to item B3, the rear bonnet 31 can be attached to the weight 46, so no other member is required to attach the rear bonnet 31. In addition, the weight 46 with the rear bonnet 31 attached can be connected to the support 41 by the connecting member 47.

[0163] (Item B4) The work machine 1 according to Item B3, wherein the second part 46b has a left part 46b1 extending upward from the left part of the first part 46a, a right part 46b2 extending upward from the right part of the first part 46a, and an upper part 46b3 connecting the upper end of the left part 46b1 and the upper end of the right part 46b2, and the connecting member 47 connects the upper part 46b3 and the support 41.

[0164] According to the work machine 1 related to item B4, the second part 46b, which is positioned at a distance above the first part 46a fixed to the substrate 26, can be connected to the support 41 by the connecting member 47. In other words, the weight 46 and the support 41 can be connected by the connecting member 47 without interposing any other members between the weight 46 and the connecting member 47.

[0165] (Item B5) The work machine 1 according to Item B4, wherein the weight 46 has an opening 46d surrounded by the first portion 46a, the left portion 46b1, the right portion 46b2, and the upper portion 46b3, and the rear bonnet 31 is mounted so as to cover the opening 46d from the rear.

[0166] According to the work machine 1 related to item B5, the rear bonnet 31 can be attached to the weight 46, so there is no need to provide a separate component for attaching the rear bonnet 31. In addition, by opening the rear bonnet 31, it becomes possible to access the prime mover 20 and other components inside the prime mover chamber 21 from the opening 46d of the weight 46.

[0167] (Item B6) The working machine 1 according to any one of Items B1 to B5, wherein the connecting member 47 has a first connecting portion 47c connected to the weight 46, and the first connecting portion 47c is adjustable in position of the weight 46 relative to the connecting member 47.

[0168] According to the work machine 1 related to item B6, it is possible to adjust the position of the weight 46 relative to the second member 47. This allows for assembly while absorbing variations in the dimensions of the weight 46 and the second member 47.

[0169] (Item B7) The working machine 1 according to any one of Items B1 to B6, wherein the connecting member 47 has a second connecting portion 47e connected to the support 41, and the second connecting portion 47e is adjustable in position of the connecting member 47 relative to the support 41.

[0170] According to the work machine 1 related to item B7, it is possible to adjust the position of the second member 47 relative to the front support member 41. This allows for assembly while absorbing variations in the dimensions of the front support member 41 and the second member 47.

[0171] (Item B8) The first connecting portion 47c and the weight 46 are connected by a first bolt BL1 extending in the vertical direction, the second connecting portion 47e and the support 41 are connected by a second bolt BL2 extending in the front-rear direction, the first connecting portion 47c is adjustable in position of the first bolt BL1 fixed to the weight 46 relative to the connecting member 47, and the second connecting portion 47e is adjustable in position of the connecting member 47 relative to the second bolt BL2 fixed to the support 41, as described in Item B7, referencing Item B6.

[0172] According to the work machine 1 related to item B8, the position of the connecting member 47 relative to the weight 46 in the front-rear direction or in the machine width direction (left-right direction) can be adjusted by adjusting the position of the connecting member 47 relative to the first bolt BL1 fixed to the weight 46. In addition, the position of the support 41 relative to the connecting member 47 in the up-down direction or in the machine width direction (left-right direction) can be adjusted by adjusting the position of the connecting member 47 relative to the second bolt BL2 fixed to the support 41.

[0173] (Item B9) A work machine 1 according to any one of items B1 to B4, comprising a prime mover 20, a cooling fan 22 for cooling the prime mover 20, and a fan shroud 50 arranged around the cooling fan 22, wherein the side of the fan shroud 50 is positioned opposite the front of the weight 46, and the space between the side of the fan shroud 50 and the front of the weight 46 is filled with a sealing material (first sealing material 56).

[0174] According to the work machine 1 related to item B9, the sealing material (first sealing material 56) is positioned to fill the space between the side of the fan shroud 50 and the front of the weight 46, eliminating the need to interpose another member (such as a sheet metal member) between the fan shroud 50 and the weight 46 for attaching the sealing material. This reduces the number of parts in the work machine 1, making assembly easier and reducing weight.

[0175] (Item C1) A work machine 1 comprising a driver's seat 7, a floor plate 80 positioned below the driver's seat 7, a rear plate 90 extending from the rear of the floor plate 80 to the rear of the driver's seat 7, and a driver's seat support 100 that supports the driver's seat 7 from below, wherein the driver's seat support 100 has a first portion 101 connected to the floor plate 80 and a second portion 102 connected to the rear plate 90.

[0176] According to the work machine 1 related to item C1, the driver's seat support 100 is connected to the floor plate 80 and the rear plate 90, which prevents the load applied to the driver's seat support 100 from concentrating on the floor plate 80 below the driver's seat 7, thereby suppressing deflection of the floor plate 80. This prevents the operator from experiencing the discomfort of the driver's seat 7 moving up and down due to the deflection of the floor plate 80. In addition, the durability of the floor plate 80 can be improved.

[0177] (Item C2) The work machine 1 according to Item C1, wherein the first part 101 extends in the vertical direction and its lower end is connected to the floor plate 80, and the second part 102 extends in the front-rear direction and its rear end is connected to the rear plate 90.

[0178] According to the work machine 1 related to item C2, the load applied to the driver's seat support 100 can be reliably transmitted to the floor plate 80 below via the first part 101, and also reliably transmitted to the rear plate 90 at the rear via the second part 102.

[0179] (Item C3) The work machine 1 according to item C1 or C2, wherein the floor plate 80 and the rear plate 90 are formed integrally, and the rear plate 90 rises from the rear of the floor plate 80.

[0180] According to the work machine 1 related to item C3, the floor plate 80 and the rear plate 90 are formed as a single unit, allowing them to reinforce each other. Furthermore, when the floor plate 80 and the rear plate 90 are integrated, this integrated unit becomes a large member extending from the front to the rear of the machine, making it prone to bending. However, the connection of the driver's seat support 100 to the floor plate 80 and the rear plate 90 reduces the likelihood of bending.

[0181] (Item C4) The work machine 1 according to any one of items C1 to C3, wherein the rear plate 90 has a horizontal surface 92 extending in the horizontal direction, and the second portion 102 has connecting parts (first connecting part 102h, second connecting part 102i) that are placed on and connected to the horizontal surface 92.

[0182] According to the work machine 1 related to item C4, the force transmitted from the second part 102 of the driver's seat support 100 to the rear plate 90 can be received as a downward force in the horizontal plane 92. Therefore, the force that tries to cause the floor plate 80 to bend downward (force transmitted from the first part 101) can be reduced.

[0183] (Item C5) The work machine 1 according to Item C4, comprising an operating device 110 for operating the work machine 1, wherein the operating device 110 is mounted on the second part 102, and the connecting part is placed on and connected to the horizontal plane 92 behind the part on which the operating device 110 is mounted.

[0184] According to the work machine 1 related to item C5, the base portion 102a of the driver's seat support 100 becomes less prone to bending in the area where the operating device 110 is mounted. This prevents the operating device 110 from vibrating when in use.

[0185] (Item C6) The work machine 1 according to Item C4, wherein the horizontal surface 92 includes a first horizontal surface 92a and a second horizontal surface 92b provided at a different height from the first horizontal surface 92a, and the second part 102 has a first connecting part 47c placed on and connected to the first horizontal surface 92a and a second connecting part 47e placed on and connected to the second horizontal surface 92b.

[0186] According to the work machine 1 related to item C6, the load from the driver's seat support 100 can be received by the rear plate 90 on two horizontal planes of different heights (first horizontal plane 92a and second horizontal plane 92b). Therefore, it is possible to prevent the load from concentrating on a part of the rear plate 90, and deformation of the rear plate 90 is less likely to occur. In addition, when the floor plate 80 bends downward and a force acts to pull the rear plate 90 connected to the second part 102 of the driver's seat support 100 forward or downward, this force can be received by the first horizontal plane 92a and the second horizontal plane 92b via the first connection part 102h and the second connection part 102i, thus making deformation of the rear plate 90 less likely to occur.

[0187] (Item C7) The work machine 1 according to Item C6, wherein the first part 101 has a left leg 101L and a right leg 101R arranged at a distance from each other in the width direction of the machine body, the first connecting part 102h is provided extending in the width direction of the machine body, and the second connecting part 102i is provided at a position offset to one side in the width direction of the machine body relative to the first connecting part 102h.

[0188] According to the work machine 1 related to item C6, the load applied to the first connection part 102h and the second connection part 102i is more easily received not only by the first horizontal plane 92a but also by the left leg 101L and the right leg 101R, thus making deformation of the driver's seat support 100 less likely.

[0189] (Item C8) The work machine 1 according to any one of items C4 to C6, wherein the rear plate 90 has a vertical surface 91 extending upward from the floor plate 80 and a horizontal surface 92 extending rearward from the upper end of the vertical surface 91, and the second part 102 has an opposing plate 102c facing the vertical surface 91 from the front and a mounting plate 102d placed on the horizontal surface 92.

[0190] According to the work machine 1 related to item C8, the rear plate 90 has a portion that is bent at approximately a right angle, which improves the strength of the rear plate 90. In addition, since the load applied to the rear plate 90 from the driver's seat support 100 can be received by the two surfaces of the rear plate 90 (horizontal surface 92 and vertical surface 91), deformation of the rear plate 90 becomes less likely.

[0191] (Item C9) The work machine 1 according to Item C8, wherein the second part 102 has a side plate 102e with one side facing left and the other side facing right, and the side plate 102e is arranged to connect the opposing plate 102c and the previously described support plate 102d.

[0192] According to the work machine 1 related to item C9, the side plate 102e can reinforce the opposing plate 102c and the mounting plate 102d, thereby improving the strength of the second part 102 and making it less prone to deformation.

[0193] (Item C10) An implement 1 according to any one of items C1 to C9, comprising a driver's seat protector that protects the driver's seat 7, wherein the rear plate 90 has a support portion 94 that supports the rear of the driver's seat protector behind the driver's seat 7, and the second portion 102 is connected to the rear plate 90 in front of and below the support portion 94.

[0194] According to the work machine 1 related to item C10, the strength of the support portion 94 that supports the rear of the driver's seat protector (cabin or canopy) can be reinforced by the driver's seat support 100.

[0195] (Item C11) The work machine 1 according to any one of Items C1 to C10, comprising a tool storage section 120 provided below the second section 102 and a front plate 121 positioned in front of the tool storage section 120, wherein a downwardly bent portion 102m is formed at the front end of the second section 102, and the bent portion 102m is positioned overlapping the front of the front plate 121 from the front.

[0196] According to the work machine 1 related to item C11, the bending portion 102m can improve the strength of the base plate 123 and prevent water from entering the tool storage portion 120 from the front.

[0197] While embodiments of the present invention have been described above, the embodiments disclosed herein should be considered in all respects to be illustrative and not restrictive. The scope of the present invention is indicated by the claims rather than by the foregoing description, and all modifications within the meaning and scope of equivalence to the claims are intended to be included. [Explanation of symbols]

[0198] 1. Work machine 2 units 7. Driver's seat 11 Roof 20 Engine 22 Cooling Fans 26 circuit boards 31 Rear hood 41 Support 42 Mounting section 43 Front leg 46 weights 46a Part 1 46b Part 2 46b1 Left part 46b2 Right part 46b3 Upper part 46d opening 46j First curved section 47 Connecting Members 47c First connection section 47e Second connection section 50 Fan Shroud 50e Second curved section 56. Sealing material (first sealing material) 56a Slope BL1 1st bolt BL2 2nd bolt

Claims

1. The aircraft and, The cockpit mounted on the aforementioned aircraft, A driver's seat protector that protects the aforementioned driver's seat, A support body for supporting the driver's seat protector, comprising a mounting portion on which the driver's seat protector is placed, and a front leg portion extending forward and downward from the mounting portion and attached to the aircraft body, A weight provided at the rear of the aforementioned aircraft, A connecting member that connects the upper part of the weight and the support, Equipped with, A work machine that supports a portion of the support by the aforementioned weight.

2. The work machine according to claim 1, wherein by releasing the connection between the weight and the connecting member, the weight can be removed from the machine while the support body remains attached to the machine body with the driver's seat protector placed on the aforementioned mounting portion.

3. The circuit board on which the prime mover is mounted, A rear bonnet covering the rear of the engine, Equipped with, The weight has a first portion fixed to the substrate and a second portion positioned above the first portion to which the rear bonnet is attached. The work machine according to claim 1, wherein the connecting member connects the second part and the support body.

4. The second portion comprises a left portion extending upward from the left side of the first portion, a right portion extending upward from the right side of the first portion, and an upper portion connecting the upper end of the left portion and the upper end of the right portion. The work machine according to claim 3, wherein the connecting member connects the upper portion and the support body.

5. The weight has an opening surrounded by the first portion, the left portion, the right portion, and the upper portion. The work machine according to claim 4, wherein the rear bonnet is mounted so as to cover the opening from the rear.

6. The connecting member has a first connecting portion connected to the weight, The work machine according to claim 1, wherein the first connecting portion is adjustable in the position of the weight relative to the connecting member.

7. The connecting member has a second connecting portion that is connected to the support, The work machine according to claim 1 or 6, wherein the second connecting portion is adjustable in the position of the connecting member relative to the support.

8. The first connecting portion and the weight are connected by a first bolt extending in the vertical direction. The second connecting portion and the support are connected by a second bolt extending in the front-rear direction. The first connecting portion is adjustable in the position of the first bolt fixed to the weight relative to the connecting member. The work machine according to claim 7, which references claim 6, wherein the second connecting portion is adjustable in position of the connecting member with respect to the second bolt fixed to the support.

9. The prime mover and A cooling fan for cooling the aforementioned prime mover, A fan shroud is positioned around the aforementioned cooling fan, Equipped with, The side of the fan shroud is positioned opposite the front of the weight, The work machine according to claim 1, wherein the space between the side of the fan shroud and the front of the weight is filled with a sealing material.

Images