Console box and construction machine including the same

Abstract

To provide a console box and a construction machine having the same, capable of reducing manufacturing cost, by respectively properly assisting tilting and jumping-up by a single auxiliary member.SOLUTION: A console box 2L includes a console base portion 3, a tilt frame portion 4 attached to the console base portion 3 so as to be rotatable about a first rotating axis portion δ 1, a flip-up frame portion 5 attached to the tilt frame portion 4 so as to be rotatable about a second rotating axis portion δ 2, and an auxiliary member 6 having a first end portion 60 attached to the console base portion 3 in front of the first rotating axis portion δ 1 and the second rotating axis portion δ 2 and a second end portion 61 attached to the flip-up frame portion 5. The flip-up frame part 5 is constituted so as to integrally tilt with the tilt frame part 4 when the tilt frame part 4 tilts, and the second turning shaft part δ 2 is arranged in front of the first turning shaft part δ 1.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a console box, particularly to a console box provided in a cab of a construction machine or the like, and to a construction machine equipped with the same. [Background technology]

[0002] Construction machinery such as hydraulic excavators generally has a cab (operator's compartment) where the operator can get in and out, and the cab is equipped with a driver's seat, control levers, etc. The operator operates the control levers while sitting in the driver's seat. Among such construction machinery, there is known one that has a console box that is tiltable so that the inclination of the control levers can be adjusted to the operator's preference.

[0003] Furthermore, in the construction machine described above, it is desirable that the construction machine be configured so that operation of the control lever is always disabled by, for example, cutting off the hydraulic circuit when the operator is not seated in the driver's seat, so that the construction machine will not move even if the operator touches the control lever when not seated in the driver's seat. In consideration of this point, a console box for construction machine is known that is tiltable as described above, and that is configured to block the operator's boarding / alighting aisle when the operator is seated in the driver's seat and enable operation of the control lever, but that can be flipped up to open the boarding / alighting aisle when the operator disembarks, and that disables operation of the control lever when flipped up (see, for example, Patent Documents 1 and 2). With such a console box, operation of the control lever is disabled when the operator opens the boarding / alighting aisle to disembark, so that operation of the control lever is always disabled when the operator is not seated in the driver's seat.

[0004] The console box described in Patent Document 1 is configured to rotate around a common rotation axis when tilting and when flipping up, and is equipped with a single torsion spring attached to the rotation axis as an auxiliary member that assists in tilting and flipping up.The console box described in Patent Document 2 is equipped with separate rotation centers for tilting (tilt center) and flipping up (flip-up center), and is equipped with two auxiliary members that separately assist in tilting and flipping up. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-063891 [Patent Document 2] International Publication No. 2021 / 131556 Summary of the Invention [Problem to be solved by the invention]

[0006] For tilting, it is desirable that the rotation angle be relatively easy to fine-tune so that the operator can adjust the tilt of the operating lever to their liking, while for lifting, it is desirable that the lift can be lifted relatively quickly so that the operator can quickly open the boarding / exiting aisle. In other words, it is desirable that the tilting and lifting functions can be appropriately assisted in different ways depending on each function.

[0007] However, when the center of rotation when tilting (tilt center) and the center of rotation when flipping up (flip-up center) are the same and a single auxiliary member is used to assist tilting and flipping up, as in the console box described in Patent Document 1, there is a problem that it is difficult to assist tilting and flipping up separately in different ways. Also, when separate auxiliary members are used to assist tilting and flipping up, as in the console box described in Patent Document 2, there is a problem that manufacturing costs increase compared to using a single auxiliary member.

[0008] The present invention has been made in consideration of the above, and aims to provide a console box and a construction machine equipped with the same that can appropriately assist tilting and flipping up with a single auxiliary member, thereby reducing manufacturing costs. [Means for solving the problem]

[0009] In order to achieve the above object, the console box of the present invention is configured as follows: The console box of the present invention is a console box disposed on at least one of the left and right sides of a driver's seat in a cab, has an operating lever, and includes: a console base, a tilt frame attached to the console base so as to be rotatable about a first rotating shaft and tiltable by rotating relative to the console base, a flip-up frame attached to the tilt frame so as to be rotatable about a second rotating shaft and capable of transitioning between a normal position in which operation of the operating lever is enabled and a flip-up position in which operation of the operating lever is disabled by rotating relative to the tilt frame, and an auxiliary member having a shaft shape, one end attached to the console base forward of the first rotating shaft and the second rotating shaft and the other end attached to the flip-up frame, which is extendable and contractable in the axial direction and biasable in the extension direction. The flip-up frame portion is configured to tilt integrally with the tilt frame portion when the tilt frame portion tilts, and the second rotating shaft portion is disposed forward of the first rotating shaft portion.

[0010] Furthermore, a construction machine according to the present invention includes the console box described above in the cab.

[0011] According to the above configuration, the tilt frame portion is attached to the console base portion so as to be rotatable around the first rotation shaft portion, and the flip-up frame portion is attached to the tilt frame portion so as to be rotatable around the second rotation shaft portion, so that the first rotation shaft portion, which is the rotation center (tilt center) when the tilt frame portion tilts relative to the console base portion, and the second rotation shaft portion, which is the rotation center (flip-up center) when the flip-up frame portion flips up relative to the tilt frame portion, are provided separately. This allows the tilt frame portion and the flip-up frame portion to rotate independently of each other, making it possible to assist tilting and flip-up separately in different ways.

[0012] Furthermore, one end of the shaft-shaped auxiliary member, which is axially extendable and axially extendable and biasable in the extension direction, is attached to the console base, while the other end is attached to the flip-up frame. As a result, the auxiliary member extends and contracts with one end (the end attached to the console base) as a fixed end, and biases the flip-up frame in the extension direction at the other end (the end attached to the flip-up frame). The biasing force of the auxiliary member causes the flip-up frame to rotate (flip up) around the second pivot shaft. This makes it possible to flip up the flip-up frame with less force. In this way, the auxiliary member assists in flipping up the flip-up frame with its biasing force.

[0013] Furthermore, because the flip-up frame section is configured to tilt integrally with the tilt frame section when the tilt frame section tilts, the auxiliary member attempts to rotate (tilt) the tilt frame section integrally with the flip-up frame section about the first pivot shaft section by means of its biasing force. As a result, when the operator rotates the tilt frame section along the extension direction (biasing direction) of the auxiliary member, it becomes possible to tilt the tilt frame section with less force. On the other hand, when the operator rotates the tilt frame section against the biasing direction of the auxiliary member, it becomes possible for the biasing force of the auxiliary member to absorb impact on the tilt frame section. In this way, the auxiliary member assists the tilt of the tilt frame section by means of its biasing force.

[0014] As described above, a single auxiliary member can assist the tilting of the tilt frame section and the lifting up of the lift-up frame section separately and in different ways, thereby reducing the manufacturing cost of the console box compared to the prior art.

[0015] Incidentally, it is desirable that the tilt frame portion be relatively easy to fine-tune the rotation angle so that the operator can adjust the tilt of the operating lever to their liking, while it is desirable that the lift-up frame portion be able to be lifted up relatively quickly so that the operator can quickly open the boarding / exiting aisle. In other words, it is desirable that the tilt and lift-up can be appropriately assisted in different ways depending on each tilt and lift-up function. Therefore, in order to appropriately assist tilt and lift-up with a single assisting member, the assisting member is arranged with respect to the first rotating shaft portion (tilt center) and the second rotating shaft portion (lift-up center) as follows.

[0016] Because one end portion, which is the fixed end of the auxiliary member, is located forward of the first and second pivot shafts, and the second pivot shaft is located forward of the first pivot shaft, the first pivot shaft (tilt center) is located farther from the fixed end of the auxiliary member than the second pivot shaft (flip-up center). Therefore, the rotation angle through which the auxiliary member attempts to rotate (tilt) the tilt frame unit around the first pivot shaft with a certain extension is necessarily smaller than the rotation angle through which the auxiliary member attempts to rotate (flip-up) the flip-up frame unit around the second pivot shaft with the same certain extension. This can be inferred from the fact that, if the extension length of the auxiliary member is considered to be the base of an isosceles triangle and the distance from the fixed end of the auxiliary member is considered to be the equilateral sides, the longer the equilateral sides, the smaller the apex angle opposite the base. In other words, the rotation angle of the tilt frame unit due to a constant extension of the auxiliary member is necessarily smaller than the rotation angle of the flip-up frame unit due to the same constant extension of the auxiliary member, which makes it relatively easy to fine-tune the rotation angle of the tilt frame unit.

[0017] In other words, the rotation angle of the flip-up frame part due to a certain extension of the auxiliary member is necessarily larger than the rotation angle of the tilt frame part due to the same certain extension of the auxiliary member, so the rotation angle of the flip-up frame part within the same time period is larger than the rotation angle of the tilt frame part. Therefore, it is possible to rotate (flip up) the flip-up frame part relatively quickly. In this way, the auxiliary member can appropriately assist both the tilt of the tilt frame part and the flip-up of the flip-up frame part.

[0018] Thus, with the above configuration, a single auxiliary member can appropriately assist both tilting and flipping up, thereby reducing the manufacturing cost of the console box.

[0019] In the above console box, the other end of the auxiliary member may be disposed above or in front of the second pivot shaft. With this configuration, the extension direction (biasing direction) of the auxiliary member is aligned with the vertical direction. As a result, when tilting the tilt frame unit substantially vertically, for example, the rotation direction (tilt direction) of the tilt frame unit and the biasing direction of the auxiliary member are generally aligned, making it possible to tilt the tilt frame unit with even less force, thereby improving operability for the operator.

[0020] In the console box described above, the auxiliary member may be a gas damper. With this configuration, the reaction force of the gas damper can more quickly raise the lift-up frame portion, thereby more efficiently assisting the lift-up frame portion.

[0021] In the console box described above, a seat adjustment device that can adjust the position of the driver's seat relative to the floor may be provided on the floor of the cab, and the console base may be fixed to the driver's seat. With this configuration, even if the position of the driver's seat is adjusted by the seat adjustment device, the positional relationship between the driver's seat and the console base, i.e., the positional relationship between the operator sitting in the driver's seat and the control lever on the console box, does not change. This makes it possible to eliminate the need to readjust (re-tilt) the inclination of the control lever even when the position of the driver's seat is adjusted.

[0022] In the above console box, the tilt frame portion or the lift-up frame portion may be provided with a tilt handle that can be operated by an operator to tilt the tilt frame portion, and the lift-up frame portion may be provided with a lever lock handle that can be operated by an operator to lift the lift-up frame portion from the normal position to the lift-up position. With this configuration, the tilt handle and the lever lock handle can be operated separately depending on the purpose, thereby improving operability by the operator.

[0023] In the above console box, the tilt handle may be provided on the lift-up frame portion and may be located forward of the tilt frame portion when the operator tilts the tilt frame portion. According to this configuration, the tilt handle, which is the point of force applied when the operator tilts the tilt frame portion, is located farther from the first rotation shaft portion (tilt center) than the front end of the tilt frame portion. This makes it possible to tilt the tilt frame portion with even less force than when the tilt handle is provided on the tilt frame portion, thereby improving operability for the operator.

[0024] The console box may further include a tilt lock mechanism that switches the tilt frame between a locked state in which rotation of the tilt frame with respect to the console base is restricted and an unlocked state in which rotation of the tilt frame with respect to the console base is permitted, and the switching by the tilt lock mechanism can be performed by an operator operating the tilt handle. With this configuration, the operation of switching between locking and unlocking the tilt frame with the tilt lock mechanism and the tilt operation using the tilt frame can be performed with a common handle, and therefore these operations can be easily performed with one hand.

[0025] In the above console box, the tilt handle may be sized to be held entirely in one hand by an operator and configured to be rotatable about a handle rotation shaft, and the tilt lock mechanism may be configured to switch the tilt frame unit from the locked state to the unlocked state in conjunction with rotation of the tilt handle. With this configuration, it is possible to switch the tilt frame unit from the locked state to the unlocked state by gripping and rotating the tilt handle with one hand, and then rotate (tilt) the tilt frame unit while still gripping the tilt handle. Therefore, this series of operations can be performed with one hand without releasing the hand from the tilt handle. [Effects of the Invention]

[0026] As described above, according to the present invention, a single assisting member can appropriately assist tilting and lifting, and therefore the manufacturing cost of the console box can be reduced. [Brief explanation of the drawings]

[0027] [Figure 1] 1 is a schematic side view of a part of a construction machine according to a first embodiment, viewed from the left. [Figure 2] FIG. 2 is a schematic perspective view of the left console box in the first embodiment as seen from behind. [Figure 3] 3 is a schematic left side view of the console box of FIG. 2 as seen from the left. [Figure 4] 3 is a schematic right side view of the console box of FIG. 2 as seen from the right. [Figure 5] FIG. 3 is a schematic side view showing the inside of the console box of FIG. 2. [Figure 6] FIG. 2 is a schematic side view showing the flip-up frame portion in a normal position. [Figure 7] FIG. 4 is a schematic side view showing the flip-up frame portion in the flip-up position. [Figure 8] FIG. 2 is a schematic enlarged perspective view of the tilt lock mechanism as seen from the front. [Figure 9] 10 is a schematic view showing the position of the guide pin in the first groove portion when the pin unit is in a natural state. FIG. [Figure 10] FIG. 1 is a diagram (1) for explaining the procedure for tilting operation using the tilt frame portion. [Figure 11] 10 is a schematic diagram showing the position of the guide pin in the first groove portion when the tilt frame portion is in an unlocked state. FIG. [Figure 12] FIG. 10 is a diagram (2) for explaining the procedure for tilting operation using the tilt frame portion. [Figure 13] FIG. 10 is a diagram (3) for explaining the procedure for tilting operation using the tilt frame portion. [Figure 14] FIG. 1 is a diagram (1) for explaining an example of a procedure for assembling an auxiliary member. [Figure 15] FIG. 10 is a diagram (2) for explaining an example of a procedure for assembling the auxiliary member. [Figure 16] FIG. 10 is a diagram (3) for explaining an example of a procedure for assembling the auxiliary member. [Figure 17] FIG. 4 is a diagram (4) for explaining an example of a procedure for assembling the auxiliary member. [Figure 18] FIG. 2 is a schematic right side view of the right console box in the first embodiment, as viewed from the right. [Figure 19] FIG. 19 is a schematic left side view of the console box of FIG. 18 as seen from the left. [Figure 20] FIG. 19 is a schematic side view showing the inside of the console box of FIG. 18. DETAILED DESCRIPTION OF THE INVENTION

[0028] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Unless otherwise specified, the direction in which an operator facing forward while sitting in the driver's seat 14 of the construction machine 1 faces will be referred to as "forward," the direction opposite to forward will be referred to as "rear," the side to the left of the operator facing forward while sitting in the driver's seat 14 will be referred to as "left," and the direction opposite to left will be referred to as "right." In the drawings, the left is indicated by the symbol L and the right is indicated by the symbol R.

[0029] (Configuration of construction machinery) 1 is a schematic side view of a part of a construction machine 1 in embodiment 1, viewed from the left. First, an overview of the construction machine 1 provided with a console box (console box 2L) in embodiment 1 of the present invention will be described.

[0030] 1, the construction machine 1 is, for example, a hydraulic excavator, and includes a crawler-type lower traveling body (not shown), an upper rotating body 10 rotatably mounted on the lower traveling body, and an attachment (not shown) used for work. The construction machine 1 is configured to perform work such as excavation work using the attachment.

[0031] The upper revolving body 10 has a box-shaped cab 11 (operator's compartment) and a machine room (not shown) located behind the cab 11. Inside the cab 11, there are provided a seat adjustment device 13 located in the center of a floor 12, a driver's seat 14 located above the seat adjustment device 13, a travel lever 15 located in front of the driver's seat 14, a console box 2L located to the left of the driver's seat 14, and a console box 2R (not shown in FIG. 1) located to the right of the driver's seat 14. In other words, the construction machine 1 has these components, including the console boxes 2L and 2R, located inside the cab 11.

[0032] The seat adjustment device 13 is configured to be able to adjust the position (for example, the position in the front-to-back direction and the up-to-down direction) of the driver's seat 14 relative to the floor 12. The driver's seat 14 is supported by a seat frame 140 (not shown in FIG. 1) attached to the seat adjustment device 13. The travel lever 15 is configured to be operable by the operator to move the lower travel structure to move the construction machine 1 forward, backward, turn, etc.

[0033] The console box 2L has an operating lever 16L, and similarly, the console box 2R has an operating lever 16R (not shown in FIG. 1). The operating levers 16L, 16R are configured to be operable by an operator to cause the construction machine 1 to perform work using an attachment. The operator operates the operating levers 16L, 16R while sitting in the driver's seat 14. The configuration of the console boxes 2L, 2R will be described in detail later.

[0034] On the left side of the cab 11, there is provided an access door 17 for the operator to get in and out of, and a door 18 for opening and closing the access door 17. Therefore, the operator gets in and out of the cab 11 from the left side. Between the front of the driver's seat 14 and the access door 17, there is a getting in and out passage P extending in the left-right direction, through which the operator gets in and out.

[0035] Inside the machinery room, although not shown, there are provided drive system devices such as an engine as a power source and a pump for supplying oil to the hydraulic system.

[0036] The attachment is mounted on the upper rotating body 10 so as to be able to rise and fall, and includes a boom, an arm, a bucket, etc. The bucket is the part used for actual work.

[0037] (Console box configuration) Next, the configuration of the console boxes 2L, 2R in the first embodiment of the present invention will be described. The console boxes 2L, 2R in the first embodiment are configured to be tiltable so that the operator can adjust the inclination of the operation levers 16L, 16R to suit the operator's physique and other factors.

[0038] Furthermore, of the console boxes 2L, 2R, the left console box 2L closer to the boarding / alighting opening 17 is configured so that when the operator is seated in the driver's seat 14, the operator's boarding / alighting aisle P is blocked and operation of the operating lever 16L is enabled so that the construction machine 1 will not move even if the operator touches the operating lever 16L when not seated in the driver's seat 14, but it can be flipped up to open the boarding / alighting aisle P when the operator disembarks, and when flipped up, operation of the operating lever 16L is disabled. Below, the configuration of the console boxes 2L, 2R that realize such a configuration will be described in detail, along with the procedures for tilting and flipping up operations, etc.

[0039] (Left console box) Fig. 2 is a schematic perspective view of the left console box 2L in embodiment 1 as seen from the rear. Fig. 3 is a schematic left side view of the console box 2L in Fig. 2 as seen from the left. Fig. 4 is a schematic right side view of the console box 2L in Fig. 2 as seen from the right. Fig. 5 is a schematic side view showing the interior of the console box 2L in Fig. 2.

[0040] First, the configuration of the left console box 2L will be described. As shown in Figures 2 to 5, the left console box 2L includes a console base 3, a tilt frame 4, a flip-up frame 5, an auxiliary member 6 (not shown in Figures 3 and 4), and a tilt lock mechanism 7. Each of these components is covered by a design cover C (see Figure 1). Below, the configuration of each of these components will be described, and then the procedures for tilting and flip-up operations using each of these components will be described.

[0041] <Console base> As shown in Fig. 2, the console base 3 is fixed to the driver's seat 14. The console base 3 is fastened to a rectangular cylindrical left frame 141, which is part of the seat frame 140, with fastening members such as bolts. The console base 3 has a vertical plate portion 30 extending in the up-down and front-rear directions to fit the shape of the corners of the left frame 141, and an upper plate portion 31 extending horizontally to the right from the upper edge of the vertical plate portion 30, and is formed in an L-shape when viewed in the front-rear direction. The console base 3 is formed from a metal plate or the like.

[0042] A first axis member (not shown) such as a shaft member that forms a first rotation axis portion δ1 extending in the left-right direction is provided on the left frame 141 so as to protrude leftward from the left side, and a through-hole (not shown) through which the first axis member passes is formed in the vertical plate portion 30 of the console base portion 3. Note that, because the first axis member is not visible in the figure, for convenience the axis of the first rotation axis portion δ1 is indicated by a dashed line.

[0043] <Tilt frame part> 2 and 3, the tilt frame portion 4 is attached to the console base portion 3 so as to be rotatable about a first rotation shaft portion δ1, and is configured to be tiltable by rotating about the first rotation shaft portion δ1 relative to the console base portion 3. As shown in Fig. 2, the tilt frame portion 4 has a pair of side plate portions 40, 41 arranged spaced apart in the left-right direction, a bottom plate portion 42 connecting the lower edges of the side plate portions 40, 41, and a cylindrical portion 43 extending in the left-right direction at the rear end of the space between the side plate portions 40, 41. The tilt frame portion 4 is formed by combining metal plates and the like.

[0044] A through hole (not shown) that communicates with the inside of the cylindrical portion 43 is formed at the rear end of the side plate portions 40, 41. The first shaft member is inserted into the through hole of the side plate portions 40, 41 and the inside of the cylindrical portion 43 so as to be rotatable relative to the side plate portions 40, 41 and the cylindrical portion 43.

[0045] As shown in FIGS. 2 and 3 , the left side plate 40 includes a main plate 401 having a window 400 formed in its front portion, the window 400 penetrating the left-right direction, and a sub-plate 402 attached to the main plate 401 so as to cover the window 400. The window 400 of the main plate 401 is formed, for example, by cutting out the front portion of the main plate 401. The sub-plate 402 is attached to the main plate 401 with fastening members such as bolts so that its position and inclination in the front-rear and up-down directions relative to the main plate 401 can be adjusted. Also as shown in FIGS. 2 and 3 , a limit switch SW that can be pressed from above is attached to the surface of the left side plate 40. When the limit switch SW is pressed to the ON state, operation of the operating lever 16L is enabled, whereas when the limit switch SW is released from the ON state, operation of the operating lever 16L is disabled. 3, an engagement protrusion 44 with which the flip-up frame portion 5 can be engaged is provided on the front surface side of the left side plate portion 40. As shown in FIG.

[0046] As shown in FIGS. 3 and 5, a contact surface 410 against which the flip-up frame 5 can contact is provided on the front end and rear side of the right side plate 41. A second shaft member (not shown), such as a shaft member, that forms the second rotation shaft δ2 extending in the left-right direction is provided at the bottom of the space between the side plates 40, 41. Since the second shaft member is not visible in the figures, the axis of the second rotation shaft δ2 is shown by a dashed line for convenience. The second shaft member is disposed forward of the first shaft member; in other words, the second rotation shaft δ2 is disposed forward of the first rotation shaft δ1.

[0047] In addition to the above configuration, as shown in Figures 2 and 3, an add-on bracket 45 that covers the space between the side plates 40, 41 from above is detachably provided on the rear end sides of the side plates 40, 41. The add-on bracket 45 has a side plate 450 that fits along the left side plate 40 and an upper plate 451 that extends horizontally to the right from the upper edge of the side plate 450, and is formed in an L-shape when viewed in the front-to-rear direction. The use of the add-on bracket 45 will be explained later together with the procedure for assembling the auxiliary member 6.

[0048] <Flip-up frame> As shown in Figures 2 and 5, the flip-up frame section 5 is attached to the tilt frame section 4 so as to be rotatable around the second pivot shaft section δ2, and is configured to be able to transition between a normal position in which operation of the operating lever 16L is enabled and a flip-up position in which operation of the operating lever 16L is disabled by rotating around the second pivot shaft section δ2 relative to the tilt frame section 4.

[0049] Fig. 6 is a schematic side view showing the lift-up frame section 5 in the normal position. Fig. 7 is a schematic side view showing the lift-up frame section 5 in the lift-up position. The lift-up frame section 5 blocks the boarding / alighting passage P in the normal position shown in Fig. 6, while opening the boarding / alighting passage P in the lift-up position shown in Fig. 7.

[0050] 2, the pop-up frame 5 has a pair of side plates 50, 51 spaced apart in the left-right direction, and a front plate 52 that connects the front edges of the side plates 50, 51 and has a mounting surface 53 for mounting the operating lever 16L. The pop-up frame 5 is formed by combining metal plates and the like.

[0051] 2 to 5, the side plate portions 50, 51 each have an insertion portion 54 that extends in the vertical direction and is inserted between the side plate portions 40, 41 of the tilt frame portion 4. As shown in FIG. 5, a through hole 55 is formed at the tip of the insertion portion 54, and the second shaft member described above is inserted into the through hole 55 so as to be rotatable relative to the insertion portion 54.

[0052] 2 to 4, a gate bar 56 is attached to the front end of the side plate portions 50, 51 via a link mechanism 560 so as to be able to rise and fall. When the lift-up frame portion 5 shown in Fig. 6 is in the normal position, the gate bar 56 is in an upright position so as to block the boarding and alighting passage P, and when the lift-up frame portion 5 shown in Fig. 7 is in the lifted position, the gate bar 56 is in a lowered position so as to open the boarding and alighting passage P.

[0053] As shown in FIGS. 2 and 3 , a cam plate 57 is provided on the base and surface side of the insertion portion 54 of the left side plate 50. The cam plate 57 is positioned so that the limit switch SW of the tilt frame 4 is pressed from above when the lift-up frame 5 is in the normal position. A lever lock handle 58 that an operator can operate to lift the lift-up frame 5 from the normal position to the lift-up position is provided in the center of the cam plate 57. The lever lock handle 58 protrudes upward from the cam plate 57 and then extends forward to its tip, at which point it has a grip 580 that can be grasped by the operator. The front end of the grip 580 is located forward of the second pivot shaft δ2 when the lift-up frame 5 is in both the normal position and the lift-up position. Therefore, the grip 580 is located so that it can be easily grasped by the operator, i.e., is easy for the operator to operate.

[0054] 3, an engagement portion 570 that can engage with the engagement protrusion 44 of the tilt frame portion 4 is formed on the front end side of the cam plate 57. The engagement portion 570 is formed in a hook shape that opens downward, and engages with the engagement protrusion 44 from above. When the engagement portion 570 engages with the engagement protrusion 44, the flip-up frame portion 5 enters a state of engagement with the tilt frame portion 4.

[0055] When the flip-up frame section 5 is flipped up, the engagement sections 570 are disengaged upward from the engagement protrusions 44, and the flip-up frame section 5 is in a state of not engaging with the tilt frame section 4, whereas when the flip-up frame section 5 is not flipped up (that is, when the flip-up frame section 5 is in the normal position), the flip-up frame section 5 is in a state of engaging with the tilt frame section 4. For this reason, the flip-up frame section 5 is configured to tilt integrally with the tilt frame section 4 when the tilt frame section 4 tilts.

[0056] 3 to 5, based on the above configuration, a tilt handle 8 that can be operated by an operator to tilt the tilt frame unit 4 is provided on the front end and surface side of the flip-up frame unit 5. The tilt handle 8 is located forward of the tilt frame unit 4 when the operator tilts the tilt frame unit 4.

[0057] The tilt handle 8 is sized so that the operator can grasp the entire handle in one hand and is configured to be rotatable about a handle rotation shaft δh that extends in the left-right direction. For convenience, in the figure, the axis of the handle rotation shaft δh is indicated by a dashed line. As shown in FIG. 4, the outer periphery of the tilt handle 8 is formed with a flat portion 80 facing forward and a curved portion 81 that is the portion other than the flat portion 80. The operator can determine the orientation of the tilt handle 8 by tactilely recognizing the orientation of the flat portion 80.

[0058] As shown in Figures 3 and 5, a front stopper 510 capable of coming into contact with an abutment surface 410 on the tilt frame unit 4 is provided on the front end and back side of the right side plate unit 51. The front stopper 510 is made of, for example, a rubber member, and comes into contact with the abutment surface 410 when the flip-up frame unit 5 is in the normal position. Also, as shown in Figures 2 and 3, a rear stopper 511 capable of coming into contact with the upper plate portion 451 of the add-on bracket 45 on the tilt frame unit 4 is provided on the rear end and back side of the right side plate unit 51. The rear stopper 511 is made of, for example, a rubber member, and comes into contact with the add-on bracket 45 when the flip-up frame unit 5 is in the flip-up position.

[0059] <Auxiliary parts> 2 and 5, the auxiliary member 6 is axially shaped and is disposed between the side plate portions 50, 51 of the pop-up frame portion 5. As shown in FIG. 5, a first end portion 60, which is one end portion of the auxiliary member 6, is attached to the console base portion 3 forward of the first rotation shaft portion δ1 and the second rotation shaft portion δ2, while a second end portion 61, which is the other end portion, is attached to the pop-up frame portion 5 above the first end portion 60. The second end portion 61 is disposed above or in front of the second rotation shaft portion δ2.

[0060] The auxiliary member 6 is configured to be expandable and contractible in the axial direction and biasable in the extension direction. The auxiliary member 6 is configured, for example, by a gas damper.

[0061] As described above, the first end 60 is attached to the console base 3 that is fixed to the driver's seat 14, and therefore the auxiliary member 6 expands and contracts with the first end 60 as the fixed end, and the second end 61 biases the flip-up frame 5 in the expanding direction. Also, as described above, the first end 60 is disposed forward of the first rotating shaft δ1 and the second rotating shaft δ2, and the second rotating shaft δ2 is disposed forward of the first rotating shaft δ1, and therefore the first rotating shaft δ1 is disposed farther from the first end 60 than the second rotating shaft δ2.

[0062] <Tilt lock mechanism> Fig. 8 is a schematic enlarged perspective view of the tilt lock mechanism 7, viewed from the front. Fig. 9 is a schematic view showing the position of the guide pin 712 in the first groove 73 when the pin unit 71 is in its natural state (a state in which no external force is acting). The tilt lock mechanism 7 is configured to be switchable between a locked state in which rotation of the tilt frame 4 relative to the console base 3 is restricted, and an unlocked state in which rotation of the tilt frame 4 relative to the console base 3 is permitted. As shown in Fig. 8, the tilt lock mechanism 7 has a groove 70, a pin unit 71, and an arm member 72.

[0063] As shown in FIGS. 8 and 9 , the groove 70 is formed in the front of each of the side plates 40, 41 of the tilt frame unit 4 (specifically, in the sub-plate 402 of the side plate 40). Each groove includes a first groove 73 and a second groove 74 that penetrate the tilt frame unit 4 in the left-right direction. The first groove 73 includes a guide groove 75 that extends substantially vertically along the tilt direction Dt of the tilt frame unit 4 (the rotation direction that is the circumferential direction around the first rotation shaft δ1), and multiple engagement grooves 76A to 76C that extend substantially forward from the guide groove 75 so as to intersect with the tilt direction Dt and are aligned at equal intervals in the tilt direction Dt. The first groove 73 is formed in an E-shape overall. The second groove 74 is disposed below the first groove 73 and extends along the tilt direction Dt of the tilt frame unit 4. Hereinafter, matters common to the engagement grooves 76A to 76C may be described using the common reference numeral 76.

[0064] As shown in Figure 8, the pin unit 71 includes a shaft pin 710 inserted into the second groove portion 74 of the groove portion 70 so that its axial direction is aligned with the left-right direction and is capable of relative movement, a support 711 protruding upward from the longitudinal center of the shaft pin 710, a guide pin 712 extending parallel to the axial direction of the shaft pin 710 through the support 711 and inserted into the first groove portion 73 so that it is capable of relative movement, and an abutment protrusion 713 protruding to the right from the support 711 above the guide pin 712.

[0065] The shaft pin 710 is attached to the console base 3 so as to be rotatable around the shaft rotation shaft δs; in other words, the pin unit 71 is attached to the console base 3 so as to be rotatable around the shaft rotation shaft δs. For convenience, the axis of the shaft rotation shaft δs is shown by a dashed line in the figure. The support 711 of the pin unit 71 is urged forward by a urging member (not shown). Therefore, as shown in FIG. 9, the guide pin 712 of the pin unit 71 is naturally positioned within the engagement groove 76 of the first groove portion 73.

[0066] Arm member 72 is disposed in front of pin unit 71. Arm member 72 is attached to the front end and rear side of flip-up frame portion 5 so as to be rotatable about handle rotation shaft portion δh, and is configured to rotate integrally with tilt handle 8. Arm member 72 rotates integrally with tilt handle 8, thereby abutting against abutment protrusion 713 of pin unit 71 from the front. Arm member 72 is urged forward by urging member 720, and therefore is separated from pin unit 71 in its natural state.

[0067] The switching between locking and unlocking of the tilt frame portion 4 by the tilt lock mechanism 7 having the above configuration will be explained together with the procedure of the tilt operation which will be explained next.

[0068] <Tilt operation> FIG. 10 is a diagram (1) for explaining the procedure for tilting using the tilt frame unit 4. FIG. 11 is a schematic diagram showing the position of the guide pin 712 in the first groove portion 73 when the tilt frame unit 4 is in an unlocked state. FIGS. 12 and 13 are diagrams (2) and (3) for explaining the procedure for tilting using the tilt frame unit 4. The dashed lines in FIG. 12 conceptually show the outlines of the tilt frame unit 4 and the flip-up frame unit 5 before tilting, in order to clearly show the tilt of the tilt frame unit 4. Next, the procedure for operations by the operator to tilt the tilt frame unit 4 described above will be explained.

[0069] As described above, the guide pin 712 of the pin unit 71 in the tilt lock mechanism 7 is positioned in the engagement groove 76 (the lowest engagement groove 76C in FIG. 9) in its natural state. At this time, even if the tilt frame section 4 is attempted to be rotated in the tilt direction Dt, the rotation is prevented by interference between the guide pin 712 and the inner wall of the engagement groove 76, and therefore the tilt frame section 4 is in a locked state in which rotation relative to the console base section 3 is restricted. In other words, when the pin unit 71 of the tilt lock mechanism 7 is in its natural state, the tilt frame section 4 is in a locked state.

[0070] Starting from the state shown in FIG. 6, the operator first grasps the tilt handle 8 and rotates it about the handle rotation shaft δh, as indicated by arrow F1 in FIG. 10. At this time, the arm member 72 of the tilt lock mechanism 7 rotates integrally with the tilt handle 8 and abuts against the abutment protrusion 713 of the pin unit 71 from the front. As the arm member 72 abuts against the pin unit 71 at the abutment protrusion 713, the pin unit 71 rotates about the shaft rotation shaft δs so that the support 711 on which the abutment protrusion 713 is provided falls backward, as indicated by arrow F2 in FIG. 10. Due to the rotation of the pin unit 71, the guide pin 712 of the pin unit 71 moves backward from the engagement groove 76C of the first groove portion 73 to the guide groove 75, as indicated by arrow F3 in FIG. 10.

[0071] As shown in Figure 11, when the guide pin 712 of the pin unit 71 in the tilt lock mechanism 7 is positioned within the guide groove 75 of the first groove portion 73, the guide pin 712 can move relative to the tilt direction Dt along the guide groove 75.In other words, since the rotation of the tilt frame portion 4 is not hindered in any way, the tilt frame portion 4 is in an unlocked state in which rotation relative to the console base portion 3 is permitted.

[0072] Next, while holding the tilt handle 8 in a rotated state, the operator pushes down or pulls up the tilt frame unit 4 (pushing down as shown by arrow F4 in FIG. 12 ), causing the tilt frame unit 4 to rotate (tilt) in a substantially vertical direction about the first rotation shaft δ1 relative to the console base unit 3. At this time, the flip-up frame unit 5 tilts integrally with the tilt frame unit 4, changing the inclination of the operation lever 16L attached to the flip-up frame unit 5. The operator tilts the tilt frame unit 4 to achieve a desired inclination of the operation lever 16L. As the tilt frame unit 4 tilts, the guide pin 712 of the tilt lock mechanism 7 moves relatively along the guide groove 75 of the first groove unit 73 (along the tilt direction Dt), as shown by arrow F5 in FIG. 13 . Similarly, the shaft pin 710 moves relatively along the second groove unit 74 (along the tilt direction Dt), as shown by arrow F6 in FIG. 13 .

[0073] As described above, the auxiliary member 6 expands and contracts with the first end 60 as a fixed end, and biases the second end 61 against the flip-up frame section 5 in the extension direction, so that the biasing force shown by arrow F7 in Fig. 12 tends to rotate (tilt) the tilt frame section 4 integrally with the flip-up frame section 5 about the first rotation shaft section δ1. As a result, when the operator pulls up the tilt frame section 4, in contrast to the case described above, in other words, when rotating the tilt frame section 4 along the extension direction (biasing direction) of the auxiliary member 6, it becomes possible to tilt the tilt frame section 4 with a lighter force.

[0074] On the other hand, when the operator presses down the tilt frame section 4 as shown by arrow F4, in other words when rotating the tilt frame section 4 against the biasing direction of the auxiliary member 6, it becomes possible to absorb the impact on the tilt frame section 4 with the biasing force of the auxiliary member 6. In this way, the auxiliary member 6 assists the tilt of the tilt frame section 4 with its biasing force.

[0075] After the operator tilts the tilt frame unit 4 so that the inclination of the operation lever 16L is as desired, the operator releases the tilt handle 8. At this time, although not shown, the arm member 72, which is configured to rotate integrally with the tilt handle 8, assumes its natural position and moves away from the pin unit 71, and as the pin unit 71 assumes its natural position, the guide pin 712 moves from the guide groove 75 to the nearest engagement groove 76. In this way, the tilt frame unit 4 enters a locked state with the inclination of the operation lever 16L adjusted to the operator's preference.

[0076] As described above, by performing the tilt operation using the tilt frame portion 4, the operator can adjust the inclination of the operation lever 16L to suit the operator's preference in accordance with the operator's physique or the like.

[0077] As described above, the tilt lock mechanism 7 is configured to be able to switch the tilt frame section 4 between a locked state and an unlocked state, and the operator can switch the tilt frame section 4 between locked and unlocked by the tilt lock mechanism 7 by operating the tilt handle 8. Furthermore, as described above, the tilt lock mechanism 7 is configured to be able to switch the tilt frame section 4 from a locked state to an unlocked state in conjunction with the rotation of the tilt handle 8.

[0078] <Flip-up operation> Next, a description will be given of the procedure for the operator to flip up the above-described flip-up frame portion 5. The operator flips up the flip-up frame portion 5 when getting off the vehicle.

[0079] As described above, the flip-up frame portion 5 blocks the boarding / exiting passage P when in the normal position. At this time, as shown in Fig. 6, the engaging portion 570 of the flip-up frame portion 5 is engaged with the engaging protrusion 44 of the tilt frame portion 4, and the front stopper 510 of the flip-up frame portion 5 is in contact with the contact surface 410 of the tilt frame portion 4. Also, at this time, the cam plate 57 of the flip-up frame portion 5 is in a state of pressing in the limit switch SW of the tilt frame portion 4, so that the limit switch SW is in the ON state and operation of the operating lever 16L is enabled.

[0080] 6, the operator first grasps the grip portion 580 of the lever lock handle 58 and pulls the lever lock handle 58 upward. At this time, although not shown in the figure, the engaging portion 570 of the flip-up frame portion 5 disengages upward from the engaging protrusion 44 of the tilt frame portion 4, and the flip-up frame portion 5 is no longer engaged with the tilt frame portion 4.

[0081] Next, as shown by arrow F8 in FIG. 7 , the operator pulls up the lever lock handle 58, thereby rotating (raising) the lift-up frame unit 5 around the second pivot shaft δ2 relative to the tilt frame unit 4. At this time, the rear stopper 511 of the lift-up frame unit 5 abuts against the add-on bracket 45 of the tilt frame unit 4, stopping the lift-up frame unit 5 in the lift-up position. By placing the lift-up frame unit 5 in the lift-up position, the boarding / alighting aisle P is opened, allowing the operator to disembark through the boarding / alighting aisle P. At this time, as the lift-up frame unit 5 is raised, the cam plate 57 moves away from the limit switch SW, which releases the ON state of the limit switch SW and disables the operation of the operating lever 16L. In this way, when the boarding / alighting aisle P is opened to allow the operator to disembark, the operation of the operating lever 16L becomes disabled. Therefore, when the operator opens the boarding / alighting aisle P to disembark, the operation of the operating lever 16L is always disabled when the operator is not seated in the driver's seat 14 (see FIG. 1 ).

[0082] Here, the auxiliary member 6 tries to rotate (flip up) the flip-up frame portion 5 around the second rotation shaft portion δ2 by the biasing force in the extension direction, in other words, by extending the auxiliary member 6 from the length L1 shown in Fig. 6 to the length L2 shown in Fig. 7. This makes it possible to flip up the flip-up frame portion 5 with a lighter force. In this way, the auxiliary member 6 assists in flipping up the flip-up frame portion 5 by the biasing force.

[0083] As described above, by performing a flip-up operation using the flip-up frame portion 5, when the operator gets off the vehicle, the boarding / alighting passage P can be opened and the operation of the operating lever 16L can be disabled.

[0084] The above has described the procedure for lifting up the lift-up frame section 5 when the operator gets off the vehicle. Conversely, when the operator gets on, although not shown, the procedure is roughly the reverse of the above. After the operator sits in the driver's seat 14, he or she grips the lever lock handle 58 and rotates the lift-up frame section 5 to the normal position around the second rotation shaft section δ2. At this time, the front stopper 510 of the lift-up frame section 5 abuts against the abutment surface 410 of the tilt frame section 4, stopping the lift-up frame section 5 in the normal position. Finally, the operator presses the lever lock handle 58 downward and engages the engagement section 570 of the lift-up frame section 5 with the engagement protrusion 44 of the tilt frame section 4, thereby engaging the lift-up frame section 5 with the tilt frame section 4.

[0085] As described above, because the flip-up frame section 5 flips up relative to the tilt frame section 4, even if the flip-up frame section 5 flips up and returns to the normal position, the tilt of the tilt frame section 4 does not change. This makes it possible to eliminate the need to readjust the tilt of the operating lever 16L (retilt) even when the flip-up frame section 5 is flipped up.

[0086] <Assembly of auxiliary parts> 14 to 17 are diagrams (1) to (4) for explaining an example of the procedure for assembling the auxiliary member 6. The dashed line in FIG. 16 conceptually shows the outline of the add-on bracket 45 before attachment, in order to clearly show the attachment of the add-on bracket 45. Incidentally, when the pop-up frame section 5 is in the pop-up position, the auxiliary member 6 is in a state shortened to less than the maximum length L3 of the auxiliary member 6 (i.e., the above-mentioned length L2 is shorter than the maximum length L3). For this reason, if an attempt is made to attach the auxiliary member 6 when the pop-up frame section 5 is in the pop-up position, the assembly worker must position the auxiliary member 6 while shortening it, which may make the attachment of the auxiliary member 6 difficult.

[0087] Therefore, it is preferable that the auxiliary member 6 can be attached to the console base portion 3 and the flip-up frame portion 5 while maintaining the maximum length L3. In this regard, by removing the add-on bracket 45 from the tilt frame portion 4, the flip-up frame portion 5 does not stop in the flip-up position, and the auxiliary member 6 can rotate to an assembled position where it has the maximum length L3. Therefore, it is preferable to assemble the auxiliary member 6 with the add-on bracket 45 removed from the tilt frame portion 4. An example of the procedure for assembling the auxiliary member 6 will be described below.

[0088] First, as shown in Fig. 14, the flip-up frame section 5 is attached to the tilt frame section 4 without the add-on bracket 45 attached thereto. Next, as shown by arrow F9 in Fig. 15, the flip-up frame section 5 is rotated about the second rotation shaft section δ2 to the assembly posture, and then the auxiliary member 6 is attached to the console base section 3 and the flip-up frame section 5. At this time, the auxiliary member 6 can be attached to the console base section 3 and the flip-up frame section 5 in a state where it has the maximum length L3, and therefore the assembly worker can easily perform positioning, etc., without having to shorten the auxiliary member 6.

[0089] Next, as shown by arrow F10 in Fig. 16, the flip-up frame section 5 is rotated to the normal position, and then the add-on bracket 45 is attached to the tilt frame section 4 as shown by arrow F11 in Fig. 16. Finally, as shown by arrow F12 in Fig. 17, the flip-up frame section 5 is rotated around the second rotation shaft section δ2 to the flip-up position, thereby completing the assembly of the auxiliary member 6. The above procedure is suitable not only for assembling the auxiliary member 6, but also when replacing the auxiliary member 6.

[0090] According to the console box 2L described above, the first rotation shaft δ1, which is the center of rotation (tilt center) when the tilt frame portion 4 tilts relative to the console base portion 3, and the second rotation shaft δ2, which is the center of rotation (flip-up center) when the flip-up frame portion 5 flips up relative to the tilt frame portion 4, are provided separately. This allows the tilt frame portion 4 and the flip-up frame portion 5 to rotate independently, making it possible to assist tilting and flip-up separately but in different ways.

[0091] Moreover, as described above, a single auxiliary member 6 can assist the tilting of the tilt frame portion 4 and the lifting up of the lift-up frame portion 5 separately and in different ways, thereby reducing the manufacturing cost of the console box 2L compared to the prior art.

[0092] Furthermore, as described above, because the first rotation shaft δ1 (tilt center) is disposed farther from the first end 60 than the second rotation shaft δ2 (flip-up center), the rotation angle through which the auxiliary member 6 attempts to rotate (tilt) the tilt frame unit 4 about the first rotation shaft δ1 with a constant extension is necessarily smaller than the rotation angle through which the auxiliary member 6 attempts to rotate (flip-up) the flip-up frame unit 5 about the second rotation shaft δ2 with the same constant extension. This can be analogized to the fact that, when the length through which the auxiliary member 6 attempts to extend is considered to be the base of an isosceles triangle and the distance of the auxiliary member 6 from the first end 60 is considered to be the equilateral sides, the longer the equilateral sides, the smaller the apex angle opposite to the base. In other words, the rotation angle of the tilt frame unit 4 with a constant extension of the auxiliary member 6 is necessarily smaller than the rotation angle of the flip-up frame unit 5 with the same constant extension of the auxiliary member 6. This makes it relatively easy to finely adjust the rotation angle of the tilt frame portion 4.

[0093] In other words, the rotation angle of the flip-up frame section 5 due to a certain extension of the auxiliary member 6 is necessarily larger than the rotation angle of the tilt frame section 4 due to the same certain extension of the auxiliary member 6, so the rotation angle of the flip-up frame section 5 within the same time period is larger than the rotation angle of the tilt frame section 4. This makes it possible to rotate (flip up) the flip-up frame section 5 relatively quickly. In this way, the auxiliary member 6 can appropriately assist both the tilt of the tilt frame section 4 and the flip-up of the flip-up frame section 5.

[0094] In this way, according to the console box 2L described above, the single auxiliary member 6 can appropriately assist both tilting and flipping up, and therefore, there is an effect that the manufacturing cost of the console box 2L can be reduced.

[0095] Furthermore, as described above, by arranging the second end 61 above or in front of the second rotation shaft portion δ2, the extension direction (biasing direction) of the auxiliary member 6 is aligned with the vertical direction. As a result, for example, when tilting the tilt frame portion 4 substantially vertically as in the case described above, the rotation direction (tilt direction Dt) of the tilt frame portion 4 and the biasing direction of the auxiliary member 6 are roughly aligned, so that the tilt frame portion 4 can be tilted with an even lighter force, thereby improving operability by the operator.

[0096] Furthermore, as described above, since the auxiliary member 6 is made up of a gas damper, the reaction force of the gas damper can cause the pop-up frame portion 5 to pop up more quickly, thereby more efficiently assisting in the pop-up of the pop-up frame portion 5.

[0097] As described above, the floor 12 of the cab 11 is provided with the seat adjustment device 13 that can adjust the position of the driver's seat 14 relative to the floor 12, and the console base 3 is fixed to the driver's seat 14. Therefore, even if the position of the driver's seat 14 is adjusted by the seat adjustment device 13, the positional relationship between the driver's seat 14 and the console base 3, i.e., the positional relationship between the operator sitting in the driver's seat 14 and the operating lever 16L in the console box 2L, does not change. This makes it possible to eliminate the need to readjust (readjust the tilt) of the operating lever 16L even when the position of the driver's seat 14 is adjusted.

[0098] Furthermore, as described above, the tilt handle 8 and the lever lock handle 58 are provided on the lift-up frame portion 5, so that the tilt handle 8 and the lever lock handle 58 can be operated separately depending on the purpose, thereby improving operability for the operator.

[0099] Furthermore, as described above, tilt handle 8 is provided on flip-up frame section 5 and is positioned further forward than tilt frame section 4 when the operator tilts tilt frame section 4, so that tilt handle 8, which serves as the point of force when the operator tilts tilt frame section 4, is positioned farther from first rotation shaft section δ1 (tilt center) than the front end of tilt frame section 4. This makes it possible to tilt tilt frame section 4 with an even lighter force than when tilt handle 8 is provided on tilt frame section 4, thereby improving operability for the operator.

[0100] Furthermore, as described above, since switching using the tilt lock mechanism 7 can be performed by the operator operating the tilt handle 8, it is possible to use a common handle to perform the switching operation of locking / unlocking the tilt frame section 4 using the tilt lock mechanism 7 and the tilt operation using the tilt frame section 4, and therefore these operations can be easily performed with one hand.

[0101] Furthermore, as described above, the tilt handle 8 is formed to a size that allows the operator to grasp the entire handle in one hand, and is configured to be rotatable around the handle rotation axis portion δh, and the tilt lock mechanism 7 is configured to be able to switch the tilt frame portion 4 from a locked state to an unlocked state in conjunction with the rotation of the tilt handle 8. Therefore, by grasping and rotating the tilt handle 8 with one hand, the tilt frame portion 4 can be switched from a locked state to an unlocked state, and then the tilt frame portion 4 can be rotated (tilted) while still grasping the tilt handle 8. Therefore, this series of operations can be performed with one hand and without releasing the tilt handle 8.

[0102] Furthermore, as described above, the front end of the grip portion 580 of the lever lock handle 58 is positioned forward of the second pivot shaft portion δ2 when the lift-up frame portion 5 is in the lift-up position, so that even when the lift-up frame portion 5 is lifted up, the grip portion 580 of the lever lock handle 58 can be left in a position that is easy for the operator to operate.

[0103] Furthermore, as described above, the left side plate 40 of the tilt frame unit 4 includes the sub-plate 402 whose position and inclination in the front-to-back and up-down directions relative to the main plate 401 are adjustable, and the groove 70 of the tilt lock mechanism 7 is formed in the sub-plate 402 of the side plate 40. Therefore, by adjusting the position and inclination of the sub-plate 402 of the side plate 40, it is possible to absorb misalignment between the grooves 70 in the side plates 40, 41 (specifically, misalignment when viewed in the left-right direction) caused by design tolerances, processing tolerances, etc. of the side plates 40, 41. As a result, when assembling the tilt frame unit 4, the grooves 70 in the side plates 40, 41 can be aligned in the left-to-right direction, and therefore the guide pin 712 in the tilt lock mechanism 7 can be inserted smoothly and reliably into the first groove 73 of each groove 70 in the side plates 40, 41.

[0104] The tilt handle 8 may be provided on the tilt frame portion 4. In this case, as in the above, the tilt handle 8 and the lever lock handle 58 can be operated separately depending on the purpose, which has the effect of improving operability for the operator.

[0105] (Right console box) Fig. 18 is a schematic right side view of the right console box 2R in embodiment 1 as seen from the right. Fig. 19 is a schematic left side view of the console box 2R as seen from the left in Fig. 18. Fig. 20 is a schematic side view showing the interior of the console box 2R in Fig. 18.

[0106] Next, the right console box 2R will be described. The right console box 2R differs from the above-described console box 2L in that it does not have a flip-up frame portion 5, but as shown in Figures 18 to 20, it does have a console base portion 3, a tilt frame portion 4, an auxiliary member 6 (not shown in Figures 18 and 19), a tilt lock mechanism 7, and a tilt handle 8. The configuration of each of these portions is similar to that of the console box 2L except for the fact that it is bilaterally symmetrical and that an operating lever 16R instead of an operating lever 16L is attached to the tilt frame portion 4 instead of the flip-up frame portion 5, and therefore a description of each of these portions will be omitted.

[0107] As in the case of the console box 2L described above, the tilt operation using the tilt frame portion 4 of the console box 2R allows the operator to adjust the inclination of the operating lever 16R to suit the operator's preference, depending on their physique, etc.

[0108] The console box according to the present invention may be disposed on at least one of the left and right sides of the driver's seat in the cab, and for example, in a cab where the operator gets in and out from the right side, the console box on the right side may be configured in the same manner as the above-described console box 2L. Even in this case, the single assist member 6 can appropriately assist both tilting and flipping up, as in the case above, and therefore the manufacturing cost of the console box can be reduced.

[0109] The above-described embodiments are illustrative in all respects and are not intended to be limiting. Therefore, the technical scope of the present invention should not be interpreted solely by the above-described embodiments and examples, but should be defined by the claims. Furthermore, all modifications and variations within the scope of the claims are within the scope of the present invention. [Explanation of symbols]

[0110] 1. Construction machinery 11 Cab 12 floors 13 Seat adjustment device 14 Driver's seat 16L, 16R operating lever 2L, 2R console box 3 Console base 4 Tilt frame part 5. Flip-up frame 58 Lever lock handle 6 Auxiliary parts 60 First end (one end) 61 Second end (other end) 7 Tilt lock mechanism 8 Tilt handle δ1 First rotating shaft δ2 Second rotating shaft δh Handle rotation shaft

Claims

1. A console box having an operating lever and disposed on at least one of the left and right sides of the driver's seat in the cab, A console base part; a tilt frame portion attached to the console base portion so as to be rotatable about a first rotation shaft portion and tiltable by rotating with respect to the console base portion; a flip-up frame portion that is attached to the tilt frame portion so as to be rotatable about a second rotation shaft portion and that can transition between a normal position in which operation of the operating lever is enabled and a flip-up position in which operation of the operating lever is disabled by rotating with respect to the tilt frame portion; an auxiliary member having a shaft shape, one end of which is attached to the console base portion forward of the first rotating shaft portion and the second rotating shaft portion, and the other end of which is attached to the lift-up frame portion, the auxiliary member being extendable and contractable in the axial direction and biasable in the extension direction; the flip-up frame portion is configured to tilt integrally with the tilt frame portion when the tilt frame portion tilts, The second rotation shaft portion is disposed forward of the first rotation shaft portion.

2. The console box according to claim 1, The other end of the auxiliary member is disposed above or in front of the second rotation shaft portion.

3. The console box according to claim 1, The auxiliary member is a gas damper.

4. The console box according to claim 1, a seat adjustment device that can adjust the position of the driver's seat relative to the floor is provided on the floor of the cab, The console base is fixed to the driver's seat.

5. The console box according to claim 1, a tilt handle that can be operated by an operator to tilt the tilt frame portion is provided on the tilt frame portion or the lift-up frame portion, The console box is provided with a lever lock handle on the lift-up frame portion that can be operated by an operator to lift up the lift-up frame portion from the normal position to the lift-up position.

6. The console box according to claim 5, The tilt handle is provided on the lift-up frame portion and is positioned forward of the tilt frame portion when an operator tilts the tilt frame portion.

7. The console box according to claim 5, The tilt frame unit further includes a tilt lock mechanism that can switch between a locked state in which rotation of the tilt frame unit relative to the console base unit is restricted and an unlocked state in which rotation of the tilt frame unit relative to the console base unit is permitted, A console box in which switching by the tilt lock mechanism can be performed by an operator operating the tilt handle.

8. The console box according to claim 7, The tilt handle is formed to a size that allows an operator to hold the entire handle in one hand, and is configured to be rotatable around a handle rotation shaft, The tilt lock mechanism is configured to be able to switch the tilt frame portion from the locked state to the unlocked state in conjunction with rotation of the tilt handle.

9. A construction machine comprising the console box according to claim 1 in the cab.

Images