Shovel
The excavator's console and armrest are designed to move in conjunction, maintaining a safe distance to prevent interference, thus improving the operability of the flipping mechanism.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-10-29
- Publication Date
- 2026-03-17
AI Technical Summary
The conventional flipping operation of a console in an excavator's driver seat can result in interference between the armrest and the hand holding the gate lever, compromising operability.
A mechanism where the console and armrest move in conjunction during the flip-up operation, maintaining a predetermined distance between them, using a first member that engages with a second member to ensure the armrest moves less than the console, preventing interference.
Improves the operability of the console flipping operation by avoiding interference between the armrest and the gate lever, enhancing user comfort and efficiency.
Smart Images

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Abstract
Description
Technical Field
[0001] The present disclosure relates to an excavator.
Background Art
[0002] Conventionally, there is known an excavator in which a console provided on the side of the driver's seat can be flipped upward backward when boarding and alighting (see, for example, Patent Document 1).
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] However, usually, the flipping operation of the console is realized by operating a gate lever provided on the upper surface of the front part of the console. Therefore, when flipping the console backward while operating the gate lever, there is a possibility that the armrest located above the console and the hand of the user holding the gate lever may interfere with each other.
[0005] Therefore, in view of the above problems, an object of the present disclosure is to provide a technology capable of improving the operability of a user regarding flipping up a console on the side of a driver's seat in an excavator.
Means for Solving the Problems
[0006] To achieve the above object, in one embodiment of the present disclosure, a lower traveling body, an upper slewing body rotatably mounted on the lower traveling body, a cab mounted on the upper slewing body, a driver's seat provided inside the cab, a console provided on the side of the driver's seat, An armrest attached to the console, An operation lever provided on the upper surface and the front part of the console, A gate lever provided on the upper surface of the console and behind the operation lever, A first member that moves integrally with the console, A second member that moves integrally with the armrest, and comprising, When the gate lever is operated, the console jumps diagonally backward, The jumping operation of the console By maintaining the engagement between the first member and the second member from the start to the completion of the process, the console and the armrest move in conjunction. maintains the distance between the armrest and the gate lever at a predetermined standard or more, An excavator is disclosed. In other embodiments of this disclosure, Lower running body and An upper slewing body is mounted on the lower traveling body so as to be rotatable, A cabin mounted on the upper rotating body, The driver's seat is located inside the cabin, A console provided to the side of the driver's seat, An armrest attached to the console, An operating lever provided on the top and front of the console, A gate lever is provided on the upper surface of the console and behind the operating lever, A first member that moves integrally with the console, It comprises a second member that moves integrally with the armrest, The console flips up diagonally backward when the gate lever is operated. During the flip-up operation of the console, the first member and the second member engage with each other, causing the console and the armrest to move in conjunction, maintaining the distance between the armrest and the gate lever above a predetermined standard. During the period from the start to the completion of the console's flip-up operation, the amount the armrest flips up is less than the amount the console flips up. A shovel will be provided.
Advantages of the Invention
[0007] According to the above embodiment, in the excavator, the operability of the user regarding the jumping of the console on the side of the driver's seat can be improved.
Brief Description of the Drawings
[0008] [Figure 1] It is an external view showing an example of an excavator. [Figure 2]It is a perspective view showing an example of the periphery of the driver's seat inside the cabin. [Figure 3] It is a view showing an example of a support structure for a console and an armrest. [Figure 4] It is a view showing an example of the operation of a gate bar accompanying the operation of a gate lever. [Figure 5] It is a view showing an example of the flipping-up operation of a console. [Figure 6] It is a view showing an example of the relationship between the hand of an operator operating a gate lever and an armrest.
Embodiments for Carrying out the Invention
[0009] Hereinafter, embodiments will be described with reference to the drawings.
[0010] [Overview of the Excavator] Referring to FIG. 1, the overview of the excavator according to this embodiment will be described.
[0011] FIG. 1 is an external view (left side view) showing an example of an excavator 100. Hereinafter, as shown in FIG. 1, when the excavator 100 is viewed from directly above, the direction in which the boom 4 (attachment) extends is defined as "front", and the directions of "front", "rear", "left", "right", "up", and "down" will be defined and described.
[0012] As shown in FIG. 1, the excavator 100 includes a lower traveling body 1, an upper revolving body 3 that is mounted on the lower traveling body 1 so as to be revolvable via a revolving mechanism 2, an attachment AT, and a cabin 10.
[0013] The lower traveling body 1 includes a pair of left and right crawlers, and is hydraulically driven by traveling hydraulic motors mounted on each of the left and right crawlers to make the excavator 100 travel.
[0014] The upper revolving body 3 revolves with respect to the lower traveling body 1 when the revolving mechanism 2 is hydraulically driven by a revolving hydraulic motor.
[0015] The attachment AT includes a boom 4, an arm 5, and a bucket 6.
[0016] The boom 4 is mounted to the center of the front of the upper slewing body 3 so as to be able to be tilted up and down, and the arm 5 is mounted to the tip of the boom 4 so as to be able to rotate around a left-right axis, and the bucket 6 is mounted to the tip of the arm 5 so as to be able to rotate around a left-right axis.
[0017] Bucket 6 is an example of an end attachment. Bucket 6 is used, for example, in excavation work.
[0018] Furthermore, depending on the work to be performed, other end attachments may be attached to the tip of the arm 5 instead of the bucket 6. Other end attachments may be other types of buckets, such as large buckets, slope buckets, or dredging buckets. Other end attachments may also be types of end attachments other than buckets, such as agitators, breakers, or grapples. In addition, spare attachments such as quick couplings or tilt rotators may be interposed between the arm 5 and the end attachment.
[0019] Furthermore, a hook for crane operations may be attached to the bucket 6. The base end of the hook is rotatably connected to a bucket pin that connects the arm 5 and the bucket 6. As a result, when operations other than crane operations (lifting operations), such as excavation work, are performed, the hook is stored in the space formed between the two bucket links.
[0020] The boom 4, arm 5, and bucket 6 are hydraulically driven by the boom cylinder 7, arm cylinder 8, and bucket cylinder 9, respectively, which act as hydraulic actuators.
[0021] Cabin 10 is the driver's cabin where the operator sits. Cabin 10 is mounted, for example, on the front left side of the upper rotating body 3, and an entrance / exit is provided on the left side.
[0022] Furthermore, in the shovel 100, some or all of the various hydraulic actuators may be replaced with electric actuators. Also, the shovel 100 may have an engine (internal combustion engine) as its prime mover, or it may have another type of prime mover (for example, an electric motor) in place of or in addition to the engine. In other words, the shovel 100 may be a so-called hydraulic shovel, a so-called hybrid shovel, or an electric shovel.
[0023] [Cabin Interior Configuration] Next, with reference to Figure 2, the internal configuration of the cabin 10 will be described.
[0024] Figure 2 is a perspective view showing an example of the area around the driver's seat 22 inside the cabin 10.
[0025] As shown in Figure 2, the interior of the cabin 10 includes a base 21, a driver's seat 22, a suspension 23, an adjustment control unit 24, consoles 25 and 26, an operating lever 27, and armrests 28 and 29.
[0026] The base 21 is fixed to the center of the floor area inside the cabin 10 in both the front-to-back and left-to-right directions.
[0027] The driver's seat 22 is fixed on a base 21. The driver's seat 22 is fixed on the base 21 so that it can slide in the front-rear direction, for example. In this case, the driver's seat 22 may slide independently in the front-rear direction relative to the consoles 25 and 26 described later, or it may slide integrally with the consoles 25 and 26 in the front-rear direction, or both may be possible. The driver's seat 22 is also supported on the base 21 via a suspension 23. This reduces vibrations in the driver's seat 22 and improves operator comfort. For example, a sliding mechanism (hereinafter referred to as the "first sliding mechanism") extending in the front-rear direction is provided on the base 21 at each of its left and right ends, and a base plate is provided which is connected to the movable parts (moving bodies) of the left and right first sliding mechanisms. The driver's seat 22 is then supported (fixed) on the base plate via a suspension 23. This allows the driver's seat 22 to slide integrally with the consoles 25 and 26 fixed to the base plate by the first sliding mechanism. Furthermore, for example, a sliding mechanism (hereinafter referred to as the "second sliding mechanism") extending in the front-to-back direction is provided on the suspension 23 at each of its left and right ends, and the driver's seat 22 is attached to the movable parts (movable bodies) of the left and right second sliding mechanisms. As a result, the driver's seat 22 can slide independently in the front-to-back direction relative to the consoles 25 and 26 by the second sliding mechanism.
[0028] As described above, the suspension 23 is installed between the driver's seat 22 and the base 21, and absorbs vibrations and other inputs to the cabin 10. This improves the operator's comfort.
[0029] The adjustment operation unit 24 is used to adjust the position and orientation of the driver's seat 22 and its surrounding components (e.g., consoles 25 and 26). The adjustment operation unit 24 includes levers 24A to 24C.
[0030] Lever 24A is used to release the locking mechanism that fixes the first sliding mechanism in an immovable state. This allows the operator to adjust the front-to-back position of the driver's seat 22 and consoles 25 and 26 in an integrated manner by operating lever 24A.
[0031] Lever 24B is used to release the locking mechanism that fixes the second sliding mechanism in an immovable state. This allows the operator to adjust the fore-aft position of the driver's seat 22 independently of the consoles 25 and 26 by operating lever 24B.
[0032] Lever 25C is used to adjust the attitude angle of consoles 25 and 26 around their left-right axes. This allows the operator to adjust the attitude angle of consoles 25 and 26 by operating lever 25C, for example, to facilitate operation of the operating levers 27 (operating levers 27L and 27R).
[0033] Console 25 is positioned relatively low vertically along the front-to-back direction, adjacent to the left side of the driver's seat 22 across its entire front-to-back range. Console 25 may move in conjunction with the front-to-back sliding of the driver's seat 22, or it may be fixed independently of the front-to-back movement of the driver's seat 22, or both may be possible. The same may apply to console 26. Console 25 is attached to the base 21, for example, via a support mechanism 30 built inside it (see Figure 3). Console 25 is provided with a gate bar 25a, a gate lever 25b, and an operating lever 27L.
[0034] The gate bar 25a is provided to extend from the upper end to the lower end of the front surface of the console 25 and operates in conjunction with the operating state of the gate lever 25b. The gate bar 25a is mounted to the support mechanism 30 (see Figure 3) inside the console 25 so as to be able to move up and down about a left-right axis provided at its upper end.
[0035] The gate lever 25b is positioned between the operating lever 27 and the armrest 28 in the front-rear direction. It is a mechanical input (operating part) for switching between a state in which the shovel 100 can be started and operated by the operating lever 27, etc., and a state in which the shovel 100 cannot be started or operated. For example, a controller mounted on the shovel 100 controls whether or not to start the shovel 100, including starting the prime mover such as the engine, according to the operating state of the gate lever 25b. Also, for example, depending on the operating state of the gate lever 25b, the connection and disconnection of the hydraulic lines from the hydraulic pump to various hydraulic equipment are switched, thereby switching between a state in which the hydraulic actuator of the shovel can be operated and a state in which it cannot.
[0036] When the gate lever 25b is in the operational position for the shovel 100, the gate bar 25a is raised forward to block lateral movement between the driver's seat 22 and the entrance to the cabin 10 (see Figure 4A). On the other hand, when the gate lever 25b is in the inoperable position for the shovel 100, the gate bar 25a is retracted downward and housed inside the console 25 to allow lateral movement between the driver's seat 22 and the entrance to the cabin 10. As a result, unless the gate bar 25a is extended forward in response to the operation of the gate lever 25b, the operator cannot start or operate the shovel 100, thereby improving the safety of the shovel 100.
[0037] The console 26 is positioned relatively low vertically along the longitudinal direction, adjacent to the right side of the driver's seat 22 across its entire longitudinal range. The console 26 is attached to the base 21, for example, via a support mechanism (not shown) that is built into it. The console 26 is provided with an operating lever 27R.
[0038] The operating lever 27 is used to operate the hydraulic actuator of the shovel 100. The operating lever 27 includes operating levers 27L and 27R.
[0039] The operating lever 27L is located at the front end of the upper surface of the left console 25. The operating lever 27L is used, for example, to operate the arm cylinder 8 (arm 5) and the hydraulic motor for slewing (upper slewing body 3).
[0040] The operating lever 27R is located at the front end of the upper surface of the right-side console 26. The operating lever 27R is used, for example, to operate the boom cylinder 7 (boom 4) and the bucket cylinder 9 (bucket 4).
[0041] The armrest 28 is positioned along the front-to-back direction, adjacent to the left rear of the driver's seat 22, and above the console 25. The armrest 28 is attached to the support mechanism 40, for example, by a bracket 28A at its rear end, and via the support mechanism 40 to the support mechanism 30 of the console 25 (see Figure 3). The armrest 28 is also rotatably supported by the bracket 28A. This allows the operator to manually flip the armrest 28 backward from its standard position (the state in Figure 2) when not in use. The same applies to the armrest 29.
[0042] The armrest 29 is positioned along the front-to-back direction, adjacent to the right rear of the driver's seat 22, and on top of the console 26. The armrest 29 is attached to a support mechanism (not shown) by, for example, a rear end bracket (not shown), and via the support mechanism to a support mechanism of the console 26.
[0043] [Support structure for console and armrest] Next, with reference to Figure 3, the support structures of the console 25 and the armrest 28 will be described.
[0044] Figure 3 shows an example of the support structure for the console 25 and the armrest 28. Specifically, Figure 3 is a left side view showing an example of the support mechanism 30 that supports the console 25 and the support mechanism 40 that supports the armrest 28.
[0045] The support mechanism 30 includes a base frame 31 and a movable frame 32.
[0046] The base frame portion 31 is provided at a relatively low position inside the console 25. The base frame portion 31 is attached, for example, to the base plate under the driver's seat 22 (suspension 23) and is movable in the forward and backward direction in conjunction with the forward and backward sliding of the driver's seat 22 by the first sliding mechanism. As a result, for example, when the lever 24A is operated by the operator, the console 25 supported by the support mechanism 30 can move in conjunction with the forward and backward movement of the driver's seat 22.
[0047] The movable frame section 32 is positioned on the base frame section 31 and is rotatably supported about a rotation axis 32A that runs along the left-right direction at the bottom of the base frame section 31. The console 25, gate bar 25a, gate lever 25b, and operating lever 27L are attached to the movable frame section 32. As a result, the console 25 can be flipped up backward in accordance with the backward rotation (clockwise rotation in the figure) of the movable frame section 32 relative to its reference state (state in Figure 3) (see Figure 5). A mounting section 32B for attaching the operating lever 27L is provided at the front of the movable frame section 32. The movable frame section 32 is provided with a locking mechanism (not shown) that fixes it in a state where it cannot rotate relative to the base frame section 31. This locking mechanism can be switched on and off, for example, by operating the gate lever 25b.
[0048] A cam portion 33 is provided at the rear end of the movable frame portion 32 so as to face the support mechanism portion 40 (movable arm portion 42).
[0049] The cam portion 33 (an example of the first member) drives the support mechanism portion 40 (movable arm portion 42) in conjunction with the rotation of the movable frame portion 32 while in contact with the support mechanism portion 40 (movable arm portion 42). The cam portion 33 has a contact portion 33A that contacts the support mechanism portion 40 (movable arm portion 42).
[0050] The contact portion 33A includes contact portions 33A1 and 33A2. The contact portions 33A1 and 33A2 have a curved shape in side view such that the amount of movement (rotation) of the support mechanism portion 40 (movable arm portion 42) is different from the amount of rotation of the movable frame portion 32. Hereinafter, the ratio (percentage) of the amount of rotation of the support mechanism portion 40 (movable arm portion 42) to the amount of rotation of the movable frame portion 32 will be conveniently referred to as the degree of rotation of the movable arm portion 42.
[0051] The support mechanism 40 includes a base arm 41 and a movable arm 42.
[0052] The base arm portion 41 is fixed to the base plate or base frame portion 31 below the driver's seat 22 and is provided to extend diagonally upward and rearward. As a result, the armrest 28 supported by the support mechanism portion 40 can move in the forward and backward direction in conjunction with the forward and backward sliding of the driver's seat 22 by the first sliding mechanism portion. Thus, for example, when the lever 24A is operated by the operator, the armrest 28 supported by the support mechanism portion 40 can move in conjunction with the forward and backward movement of the driver's seat 22.
[0053] The movable arm portion 42 (an example of the second member) is rotatably supported around a rotation axis 42A that runs in the left-right direction and is provided at the tip of the base arm portion 41. The base end of the armrest 28 is attached to the tip of the movable arm portion 42 (see Figures 4 and 5). The movable arm portion 42 is positioned to tilt forward from the tip of the base arm portion 41 and has a pin portion 42B at a location facing the movable frame portion 32 (cam portion 33).
[0054] The pin portion 42B contacts the movable frame portion 32 (the contact portion 33A of the cam portion 33). This fixes the posture angle of the movable arm portion 42 with the movable frame portion 32. Then, in conjunction with the rotation of the movable arm portion 42, that is, the flipping up of the console 25, the movable arm portion 42 rotates backward, allowing the armrest 28 to be flipped up backward.
[0055] In the reference state of the movable frame 32, the pin portion 42B abuts against the contact portion 33A1. When the movable frame 32 rotates backward (clockwise in the figure) from the reference state, the movable arm portion 42 rotates backward with a relatively large degree of rotation, while the pin portion 42B abuts against the curved surface of the contact portion 33A1 (clockwise in the figure). Then, when the movable frame 32 has rotated a certain distance backward from the reference state, the pin portion 42B transitions to a state where it abuts against the curved surface of the contact portion 33A2, and the movable arm portion 42 rotates backward with a relatively small degree of rotation. Rotating with a relatively small degree of rotation includes the case where the degree of rotation is zero (0), that is, when the movable arm portion 42 does not rotate. This makes it possible to change the degree to which the armrest 28 flips backward in relation to the amount the console 25 flips up, in accordance with the position of the console 25 when it is flipped up. In this example (Figure 3), when the pin portion 42B is in contact with the curved surface of the contact portion 33A2, the movable arm portion 42 does not rotate around the rotation axis 42A, but maintains the posture it had when transitioning from the state in which the pin portion 42B was in contact with the curved surface of the contact portion 33A1 to the state in which it was in contact with the curved surface of the contact portion 33A2 (see Figures 5B and 5C).
[0056] Furthermore, the degree to which the armrest 28 flips backward in relation to the amount the console 25 flips up may be varied in three or more stages to match the position of the console 25 when it is flipped up, or it may be varied continuously.
[0057] [Gate bar operation in conjunction with gate lever operation] Next, referring to Figure 4, the operation of the gate bar 25a in conjunction with the operation of the gate lever 25b will be explained in detail.
[0058] Figure 4 shows an example of the movement of the gate bar 25a in response to the operation of the gate lever 25b. Specifically, Figure 4 shows the state in which the gate bar 25a is raised forward from the console 25 (Figure 4A) and the state in which the gate bar 25a is lowered and housed in the console 25 (Figure 4B).
[0059] Note that in Figure 4, the operation lever 27L and other components are omitted from the drawing.
[0060] As shown in Figure 4A, when the gate lever 25b is moved to its furthest forward position (hereinafter referred to as the "first operating state"), the gate bar 25a rises forward from the console 25. This blocks passage between the driver's seat 22 and the entrance / exit to the cabin 10. In addition, the first operating state of the gate lever 25b maintains a state in which the shovel 100 can be started and operated.
[0061] On the other hand, as shown in Figure 4B, when the gate lever 25b is operated one step backward from the first operating state (dotted line state) (hereinafter referred to as the "second operating state"), the gate bar 25a is retracted into the console 25. This allows passage between the driver's seat 22 and the entrance / exit to the cabin 10. In addition, in the second operating state of the gate lever 25b, the shovel 100 is kept in a state where it cannot be started or operated.
[0062] In this way, by operating the gate lever 25b in the forward and backward directions, the gate bar 25a can be switched between a state that blocks passage between the driver's seat 22 and the entrance / exit of the cabin 10 and a state that allows passage.
[0063] [Console flips up when the gate lever is operated] Next, with reference to Figures 5 and 6, the upward movement of the console 25 in conjunction with the operation of the gate lever 25b will be explained in detail.
[0064] Figure 5 shows an example of the flip-up operation of the console 25. Specifically, Figure 5 is a left side view showing the area around the console 25 at the start of the flip-up operation (Figure 5A), during the flip-up operation (Figure 5B), and at the completion of the flip-up operation (Figure 5C). Figure 6 shows an example of the relationship between the operator's hand HD operating the gate lever 25b and the armrest 28. Specifically, Figure 6 is a side view showing the relationship between the operator's hand HD and the armrest 28 during the first half (Figure 6A) and second half (Figure 6B) of the flip-up operation of the console 25.
[0065] Note that in Figure 5, the operation lever 27L and other components are omitted from the drawing.
[0066] As shown in Figure 5A, when the gate lever 25b is moved one step further backward from the second operating state (dotted line state) (hereinafter referred to as the "third operating state"), the locking mechanism of the console 25 (movable frame portion 32) is released, and the console 25 can be flipped up.
[0067] Furthermore, the third operating state of the gate lever 25b may be omitted, and the locking mechanism may be released in the second operating state, allowing the console 25 to be flipped up.
[0068] As shown in Figures 5A and 5B, in the first half of the console 25's flip-up operation, as described above, the pin portion 42B contacts the contact portion 33A1, and the movable arm portion 42 rotates backward. In conjunction with this rotation, the armrest 28 flips up backward. Therefore, in the first half of the console 25's flip-up operation, the amount the armrest 28 flips up relative to the amount the console 25 flips up, i.e., the degree to which the armrest 28 flips up, is relatively larger than in the second half of the console 25's flip-up operation, which will be described later. As shown in Figure 6A, in the first half of the console 25's flip-up operation, the gate lever 25b is located in front of the front end of the armrest 28, and it is necessary to secure a gap between the gate lever 25b and the relatively thick back of the hand HD of the operator operating the gate lever 25b.
[0069] On the other hand, as shown in Figures 5B and 5C, in the latter half of the flip-up operation of the console 25, the pin portion 42B comes into contact with the contact portion 33A2, as described above. In this case, the movable arm portion 42 maintains its posture in accordance with the flip-up operation of the console 25. The movable arm portion 42 also rotates backward in accordance with the flip-up operation of the console 25, and in conjunction with this rotation, the armrest 28 may flip backward to a smaller degree than in the first half of the flip-up operation of the console 25. In other words, in the latter half of the flip-up operation of the console 25, the amount of the armrest 28 flips up relative to the amount of the console 25 flips up, i.e., the degree of the armrest 28 flips up, becomes relatively smaller than in the first half of the flip-up operation of the console 25. This is because, as shown in Figure 6B, in the latter half of the flip-up operation, the gate lever 25b slides under the armrest 28, and it is sufficient to secure a gap between the gate lever 25b and the relatively thin finger portion of the operator's hand HD that operates the gate lever 25b. In this example, as described above, during the latter half of the console 25's flip-up operation, the armrest 28 maintains its position, and the degree to which the console 25 flips up becomes zero. This is because, when the first half of the console 25's flip-up operation is completed, the gate lever 25b is positioned under the armrest 28, and sufficient vertical space is secured between the armrest 28 and the gate lever 25b. As a result, even if the armrest 28 maintains its position, interference between the operator's fingers operating the gate lever 25b and the armrest 28 can be avoided.
[0070] Thus, in this example, during the flip-up operation of the console 25 (from the start of the flip-up operation to the completion of the flip-up operation), the distance between the gate lever 25b and the armrest 28 can be maintained at a predetermined level that avoids interference with the operator's hand HD operating the gate lever 25b. For example, the predetermined level is a value (predetermined distance) that corresponds to the sum of the thickness T of the operator's hand operating the gate lever 25b and the gap α required between that hand and the armrest 28 (= T + α). In this case, the thickness T of the operator's hand includes, for example, the thickness T1 of the back of the operator's hand and the thickness T2 of the fingers. Specifically, in the first half of the flip-up operation of the console 25, the predetermined level may be a value that corresponds to the sum of the thickness T1 of the back of the operator's hand operating the gate lever 25b and the gap α required between the back of that hand and the armrest 28 (= T1 + α). Furthermore, in the latter half of the flip-up operation of the console 25, the predetermined criterion may be a value relating to the distance corresponding to the sum of the thickness T2 of the fingers of the operator's hand operating the gate lever 25b and the gap α required between those fingers and the armrest 28 (= T2 + α).
[0071] Furthermore, the gap α may be the same or different depending on the part of the hand being treated (for example, the fingers or the back of the hand).
[0072] [Effect] Next, the operation of the shovel 100 according to this embodiment will be described.
[0073] In this embodiment, the shovel 100 comprises a lower traveling body 1, an upper rotating body 3 that is rotatably mounted on the lower traveling body 1, a cabin 10 mounted on the upper rotating body 3, a driver's seat 22 provided inside the cabin 10, a console 25 provided to the side of the driver's seat 22, an armrest 28 attached to the console 25, and a gate lever 25b provided on the console 25. The console 25 is flipped up diagonally backward when the gate lever 25b is operated, and when the console 25 flips up, the distance between the armrest 28 and the gate lever 25b is maintained at or above a predetermined standard.
[0074] This prevents interference between the operator's hand operating the gate lever 25b and the armrest 28 when the console 25 is flipped up. Therefore, the operator's (user's) operability regarding the flipping up of the console 25 can be improved.
[0075] Furthermore, in this embodiment, the above-mentioned predetermined criteria may change depending on the position of the console 25 when it is flipped up.
[0076] This allows the predetermined reference point to be changed to match the positional relationship between the operator's hand operating the gate lever 25b and the armrest 28, depending on the position of the console 25. Therefore, when the console 25 is flipped up, a more appropriate gap can be secured between the operator's hand operating the gate lever 25b and the armrest 28.
[0077] Furthermore, in this embodiment, the predetermined criteria may differ between the section from the start to a predetermined position and the section from the predetermined position to completion within the section from the start to completion of the console 25's upward movement. For example, the predetermined position is the position where the pin portion 42B switches between contacting the contact portion 33A1 and contacting the contact portion 33A2.
[0078] This allows for a more appropriate gap to be secured between the operator's hand operating the gate lever 25b and the armrest 28, for example, as the area of the operator's hand that is subject to interference changes from the back of the hand to the fingers.
[0079] Furthermore, in this embodiment, the gate lever 25b may be movable between at least two or more positions.
[0080] As a result, the gate lever 25b can use two positions to switch the state of the gate bar 25a and switch between a state where the shovel 100 can be started and operated and a state where it cannot. Furthermore, one of the two positions, where the gate bar 25a is housed in the console 25 and the state where the shovel 100 cannot be started and operated, or another position different from the two positions, can be used to perform the flip-up operation of the console 25.
[0081] Furthermore, in this embodiment, the distance between the armrest 28 and the gate lever 25b may be maintained above a predetermined standard in accordance with changes in the position of the gate lever 25b relative to the armrest 28. For example, the distance between the armrest 28 and the gate lever 25b may be maintained above a predetermined standard in accordance with changes in the position of the front end position of the armrest 28 and the position of the gate lever 25b.
[0082] This allows for a more appropriate clearance to be secured between the operator's hand operating the gate lever 25b and the armrest 28, in accordance with the relative positional relationship of the gate lever 25b with respect to the armrest 28.
[0083] Furthermore, in this embodiment, the shovel 100 may also include a cam portion 33 that moves integrally with the console 25 and a movable arm portion 42 that moves integrally with the armrest 28. When the console 25 springs up, the cam portion 33 (contact portion 33A) and the movable arm portion 42 (pin portion 42B) engage, causing the console 25 and the armrest 28 to move in conjunction, and maintaining the distance between the armrest 28 and the gate lever 25b above a predetermined standard.
[0084] This allows the armrest 28 to be linked to the flip-up operation of the console 25, and specifically, the distance between the armrest 28 and the gate lever 25b can be maintained at or above a predetermined standard.
[0085] Although embodiments have been described in detail above, this disclosure is not limited to these specific embodiments, and various modifications and changes are possible within the scope of the gist described in the claims. [Explanation of Symbols]
[0086] 1. Lower running body 2. Swivel mechanism 3. Upper rotating body 4 Boom 5 Arms 6 buckets 10 cabins 22 Driver's seat 25 Console 25a Gate bar 25b Gate lever 27, 27L, 27R operating levers 28 Armrest 30 Support mechanism section 31 Base frame section 32 Movable frame section 32A Rotating shaft 32B Mounting section 33 Cam section (first component) 33A Contact part 33A1 Contact part 33A2 Contact part 40 Support mechanism section 41 Base arm section 42. Movable arm section (second component) 42A Rotating shaft 42B Pin section 100 Shovel
Claims
1. Lower traveling body and An upper slewing body is mounted on the lower traveling body so as to be rotatable, A cabin mounted on the upper rotating body, The driver's seat is located inside the cabin, A console provided to the side of the driver's seat, An armrest attached to the console, An operating lever provided on the top and front of the console, A gate lever is provided on the upper surface of the console and behind the operating lever, A first member that moves integrally with the console, It comprises a second member that moves integrally with the armrest, The console flips up diagonally backward when the gate lever is operated. By maintaining the engagement between the first member and the second member from the start to the completion of the flip-up operation of the console, the console and the armrest move in conjunction, and the distance between the armrest and the gate lever is maintained at or above a predetermined standard. Shovel.
2. Lower traveling body and An upper slewing body is mounted on the lower traveling body so as to be rotatable, A cabin mounted on the upper rotating body, The driver's seat is located inside the cabin, A console provided to the side of the driver's seat, An armrest attached to the console, An operating lever provided on the top and front of the console, A gate lever is provided on the upper surface of the console and behind the operating lever, A first member that moves integrally with the console, It comprises a second member that moves integrally with the armrest, The console flips up diagonally backward when the gate lever is operated. During the flip-up operation of the console, the first member and the second member engage with each other, causing the console and the armrest to move in conjunction, maintaining the distance between the armrest and the gate lever above a predetermined standard. During the period from the start to the completion of the console's flip-up operation, the amount the armrest flips up is less than the amount the console flips up. Shovel.
3. The predetermined reference changes depending on the position of the console during the flip-up operation. The shovel according to claim 1 or 2.
4. In the section from the start to the completion of the console's flip-up operation, the predetermined standard differs between the section from the start to the predetermined position and the section from the predetermined position to the completion. The shovel according to claim 3.
5. The gate lever is movable between at least two positions. The shovel according to claim 4.
6. In response to a change in the position of the gate lever relative to the armrest, the distance between the armrest and the gate lever is maintained at or above the predetermined standard. A shovel according to any one of claims 1 to 5.
7. The upper surface of the console is higher than the seat surface of the driver's seat in the state before the flip-up operation. A shovel according to any one of claims 1 to 6.
Citation Information
Patent Citations
Driver'S cab for construction machine
JP2001322467A
Operating device of construction machinery
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Construction machine
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Shovel
WO2016152700A1