JP2007326469A - Construction machinery and cockpit seat for the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a construction machinery and a cockpit seat for the same capable of reducing the restriction of a cockpit space. <P>SOLUTION: The cockpit seat of the construction machinery includes a seat portion 4 on which an operator seats, a first slide mechanism 5, a mounting platform 6, and a first operating member 7. The first slide mechanism 5 supports the seat portion 4, and can switch between a released state which shows that the seat portion 4 is allowed to move in the front-and-rear direction, and a locked state which shows that the seat portion 4 is locked at a desired position along the front-and-rear direction. The mounting platform 6 is a part on which the seat portion 4 is placed via the first slide mechanism 5. The first operating member 7 is provided to the mounting platform 6, and is a member for switching between the released state and the locked state of the first slide mechanism 5. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a cockpit of a construction machine and a construction machine.

  Conventionally, a seat portion on which an operator sits is provided at a cockpit of a construction machine such as a hydraulic excavator or a bulldozer, and this seat portion is supported by a slide mechanism. The slide mechanism can move the seat portion in a predetermined slide direction, and the operator sets the seat portion at a desired position by operating an operation member that switches between a released state and a locked state of the slide mechanism. (See Patent Document 1).

The operation member is provided on the lower surface of the seat portion, for example, and the operator pulls the operation member upward while seated on the seat portion to release the slide mechanism. Then, the seat portion is moved in the front-rear direction, and the operation member is returned to the original state in a state where the seat portion is disposed at a desired position. As a result, the seat portion becomes immovable and is fixed at a desired position.
JP 2005-96746 A

  However, in the cockpit of the construction machine as described above, since the operation member is provided in the seat portion, the operation member moves as the seat portion moves. Therefore, in order to prevent the operation member from interfering with other members in the cockpit, it is necessary to secure a space in which the operation member can move in the cockpit, and the other members in the cockpit and the operation members themselves There is a risk that the placement of the will be limited. In addition, when the space in which the operation member can move cannot be secured sufficiently, it becomes difficult to operate the operation member. For example, when the operation member is provided on the lower surface front side of the seat portion, when the seat portion is moved forward, the operation member is also moved forward together with the seat portion. For this reason, the space between the operation member and the inner wall portion in front of the operator's feet at the cockpit becomes narrow, making it difficult to operate the operation member. In this case, there is also a problem that the space for placing the operator's feet becomes narrow.

  An object of the present invention is to provide a cockpit of a construction machine and a construction machine that can reduce a space restriction in the cockpit.

  The cockpit of the construction machine according to the first invention includes a seat portion on which an operator sits, a first slide mechanism, a placement portion, and a first operation member. The first slide mechanism supports the seat part and can be switched between a release state in which the seat part can be moved in a predetermined sliding direction and a locked state in which the seat part is fixed at a desired position along the sliding direction. is there. The placement portion is a portion on which the sheet portion is placed via the first slide mechanism. The first operating member is a member that is provided in the mounting portion and switches between a released state and a locked state of the first slide mechanism.

  In the cockpit of this construction machine, since the first operation member is provided not on the seat portion but on the placing portion, the first operation member does not move together when the seat portion is moved. For this reason, it is not necessary to move the 1st operation member largely. Thereby, in the cockpit of this construction machine, space restrictions in the cockpit can be reduced as compared with the case where the first operating member is provided in the seat portion.

  The cockpit of the construction machine according to the second invention is the cockpit of the construction machine according to the first invention, and the first operating member is rotated along a plane perpendicular to the sliding direction to thereby move the first slide. Switches between the released state and the locked state of the mechanism.

  In the cockpit of this construction machine, the operation of the first operating member for switching between the released state and the locked state of the first slide mechanism is performed by rotating along the plane orthogonal to the slide direction. For this reason, the first operating member can be operated with little movement in the sliding direction. Thereby, the restriction | limiting of the space of the sliding direction of the seat part in a cockpit can be reduced more.

  The cockpit of the construction machine according to the third invention is the cockpit of the construction machine according to the first invention, and the first operating member is operated in a direction crossing the sliding direction to release the first sliding mechanism. Switch between state and locked state.

  In the cockpit of this construction machine, the operation of the first operation member for switching between the released state and the locked state of the first slide mechanism is performed by operating in a direction crossing the slide direction. For this reason, the first operating member can be operated with little movement in the sliding direction. Thereby, the restriction | limiting of the space of the sliding direction of the seat part in a cockpit can be reduced more.

  The cockpit of the construction machine according to the fourth invention is the cockpit of the construction machine according to any one of the first to third inventions, wherein the first slide mechanism includes a pair of fixed rails, a pair of movable rails, A pair of locking members and a connecting member are included. The pair of fixed rails are fixed to the placement portion, and are arranged at a distance in a direction orthogonal to the sliding direction. The pair of movable rails are fixed to the seat portion and are provided to be slidable with respect to the pair of fixed rails. The pair of lock members are respectively provided on the pair of movable rails, and are movable to a lock position where the movable rail cannot move with respect to the fixed rail, and a release position where the movable rail can move with respect to the fixed rail. It is a member. The connecting member is a member that connects a pair of locking members. Then, the first operation member moves the lock member by pressing the connecting member, and switches between the released state and the locked state of the first slide mechanism.

  In the cockpit of this construction machine, the connection member and the first operation member are provided separately on the seat portion side and the placement portion side, respectively, and the operation of the first operation member is transmitted to the lock member via the connection member. By doing so, the released state and the locked state of the first slide mechanism are switched. For this reason, the release state and the locked state of the first slide mechanism can be easily switched by the first operation member provided on the placement portion side.

  A cockpit of a construction machine according to a fifth invention is a cockpit of a construction machine according to any one of the first to fourth inventions, wherein the seat portion includes a seat body, a second slide mechanism, and a second operation member. And a movable console base. The second slide mechanism supports the seat body and can be switched between a release state in which the seat body can be moved in the sliding direction and a locked state in which the seat body is fixed at a desired position along the sliding direction. The second operation member is a member that switches between a released state and a locked state of the second slide mechanism. The movable console base is a member on which the seat body is placed via the second slide mechanism. The first slide mechanism supports the movable console base. The placing portion is fixed to the floor surface of the cockpit. And the 1st operation member is provided so that it may protrude in a sliding direction from a mounting part.

  In the cockpit of this construction machine, not only the position of the entire seat portion including the movable console base and the seat body can be adjusted by the first slide mechanism, but also the movable console base of the seat body by the second slide mechanism. It is also possible to adjust the position relative to. For this reason, the seating position of the operator can be adjusted more finely.

  In addition, when the seat body is movable with respect to the movable console base, the seat body may pass above the first operation member. Therefore, it is desirable to dispose the first operation member at a low position. In this case, if the entire first operation member is provided on the placement portion, the space between the first operation member and the placement portion becomes narrow, making it difficult to insert the operator's finger. This may make it difficult to operate the first operating member.

  However, in the cockpit of this construction machine, the first operating member is provided so as to protrude in the sliding direction from the placement portion. For this reason, even if the first operating member is provided at a low position, the first operating member can be easily operated because there is room in the space below the first operating member. Further, in the cockpit of this construction machine, the first operating member does not move in the sliding direction together with the seat portion. Therefore, even if the first operating member is provided so as to protrude from the mounting portion in the sliding direction, the first operating member The space located in the sliding direction is not excessively narrowed.

  A construction machine according to a sixth aspect includes the cockpit of the construction machine according to any one of the first to fifth aspects.

  In this construction machine, since the first operation member is provided not on the seat portion but on the placement portion, the first operation member does not move together when the seat portion is moved. For this reason, it is not necessary to move the 1st operation member largely. Thereby, in this construction machine, space restrictions in the cockpit can be reduced as compared with the case where the first operation member is provided in the seat portion.

  In the present invention, since the first operation member is provided not on the sheet portion but on the placing portion, the first operation member does not move together when the sheet portion is moved. For this reason, it is not necessary to move the 1st operation member largely. Thereby, compared with the case where the 1st operation member is provided in a seat part, the restrictions of the space in a cockpit can be reduced.

<First Embodiment>
〔Constitution〕
A construction machine 1 according to a first embodiment of the present invention is shown in FIG. A cab 2 is provided in the construction machine 1, and a cockpit 3 as shown in FIG. 2 is provided inside the cab 2. The cockpit 3 includes a seat portion 4, a first slide mechanism 5, a mounting table 6, and a first operation member 7.

<Sheet part 4>
The seat unit 4 includes a seat body 8 on which an operator sits, a second slide mechanism 9, a second operation member 10, and a movable console base 11.

  The seat body 8 includes a seat surface portion 12 and a back surface portion 13, and the height of the seat surface portion 12 and the inclination angle of the back surface portion 13 are adjusted by operating an adjustment lever 14 disposed below the seat surface portion 12. Adjustment is possible.

  The second slide mechanism 9 is a mechanism that makes it possible to adjust the front-rear position of the seat body 8. The second slide mechanism 9 is provided below the seat body 8 and is provided between the seat body 8 and the movable console base 11. The second slide mechanism 9 supports the seat body 8 and releases the seat body 8 so that the seat body 8 can be moved in the front-rear direction (slide direction), and a lock that fixes the seat body 8 at a desired position along the front-rear direction. It is possible to switch to a state. As shown in FIG. 3, the second slide mechanism 9 includes a pair of fixed rails 15a and 15b, a pair of movable rails 16a and 16b, and a pair of lock members (not shown).

  The pair of fixed rails 15a and 15b are members each having a long shape in the front-rear direction, and are fixed to the upper surface of the movable console base 11 by fixing means such as bolts. The fixed rails 15a and 15b are arranged in parallel to each other at a distance in the left-right direction. A plurality of concave grooves similar to the concave grooves 25 in FIG. 6 are provided in the front-rear direction on the inner side surfaces in the left-right direction of the fixed rails 15a, 15b.

  The pair of movable rails 16a and 16b are members each having a long shape in the front-rear direction, and are fixed to the lower surface of the seat body 8 by fixing means such as bolts. The movable rails 16a and 16b are arranged corresponding to the fixed rails 15a and 15b, and are arranged in parallel to each other at a distance in the left-right direction. The movable rails 16a and 16b are combined to be slidable with respect to the fixed rails 15a and 15b. The movable rails 16a and 16b are immovable with respect to the fixed rails 15a and 15b by a lock member provided on the inner surface of the movable rails 16a and 16b.

  The second operation member 10 is a member for moving the lock member to switch between the released state and the locked state of the second slide mechanism 9. The second operating member 10 has a U-shape that is bent forward and convex when viewed from above. Both end portions 10a and 10b of the second operation member 10 are provided so as to extend in the front-rear direction along the second slide mechanism 9, and are connected to a pair of lock members, respectively. The central portion between the both end portions 10a and 10b of the second operation member 10 is located below the front end portion of the seat surface portion 12 and is substantially parallel to the left-right direction, and the operator adjusts the position of the seat body 8. It is a gripping portion 10c that is gripped at the time. The second operating member 10 is provided so that the grip portion 10c can move in the vertical direction by swinging around a portion connected to the lock member as a fulcrum (see arrows A1 and A2 in FIG. 3). In the basic state in which the second operation member 10 is not operated, the lock member is fitted in the recessed grooves of the fixed rails 15a and 15b, and the movable rails 16a and 16b are immovable. When the gripping portion 10c moves upward from this basic state, the lock member is unlocked, and the movable rails 16a and 16b can be moved.

  The movable console base 11 is a member on which the seat body 8 is placed via the second slide mechanism 9. In addition to the seat body 8, a console 19 provided with an operation lever and an operation unit for devices necessary for the operation of the construction machine 1 is placed on the movable console base 11 (see FIG. 2). The movable console base 11 includes a bottom plate portion 17 on which the console 19 is placed, and a seat body attachment member 18 that is attached on the bottom plate portion 17 and to which the fixed rails 15a and 15b of the second slide mechanism 9 are fixed. ing.

<First slide mechanism 5>
The first slide mechanism 5 is a mechanism that makes it possible to adjust the front-rear position of the seat portion 4 including the movable console base 11. The first slide mechanism 5 is provided below the movable console base 11 and is provided between the movable console base 11 and the mounting base 6. The first slide mechanism 5 supports the movable console base 11 to support the seat portion 4 and to release the seat portion 4 to be movable in the front-rear direction, and to the desired position along the front-rear direction. 4 can be switched to a locked state.

  4 and 5 show the structures of the first slide mechanism 5, the mounting table 6, and the first operation member 7. FIG. FIG. 4 is a perspective view of the first slide mechanism 5, the mounting table 6, and the first operation member 7 as viewed obliquely from above, and FIG. 5 is a top view. 4 and 5, other members such as the seat portion 4 are omitted for easy understanding. The first slide mechanism 5 includes a pair of fixed rails 21a and 21b, a pair of movable rails 22a and 22b, a pair of lock members 23a and 23b, and a connecting member 24.

  The pair of fixed rails 21a and 21b are members each having a long shape in the front-rear direction, and are fixed to the upper surface of the mounting table 6 by fixing means such as bolts. The fixed rails 21a and 21b are arranged in parallel to each other at a distance in the direction orthogonal to the sliding direction of the seat portion 4, that is, in the left-right direction. As shown in FIG. 6, a plurality of concave grooves 25 are provided side by side in the front-rear direction on the inner side surfaces in the left-right direction of the fixed rails 21a, 21b. In FIG. 6, the fixed rail 21a, the movable rail 22a, and the lock member 23a are illustrated. However, the fixed rail 21b, the movable rail 22b, and the lock member 23b are similar members that are symmetrical.

  The pair of movable rails 22a and 22b are members each having a long shape in the front-rear direction, and are fixed to the lower surface of the movable console base 11 by fixing means such as bolts (see FIG. 3). The movable rails 22a and 22b are arranged parallel to each other at a distance in the left-right direction corresponding to the fixed rails 21a and 21b, and are combined with the fixed rails 21a and 21b. The movable rails 22a and 22b are slidable in the front-rear direction with respect to the fixed rails 21a and 21b. Further, the movable rails 22a and 22b cannot be moved with respect to the fixed rails 21a and 21b by the lock members 23a and 23b.

  The pair of lock members 23a and 23b are provided on the pair of movable rails 22a and 22b, respectively, and a lock position that makes the movable rails 22a and 22b immovable with respect to the fixed rails 21a and 21b, and the movable rails 22a and 22b. This is a member that can be moved to a release position that enables movement to the fixed rails 21a and 21b. The lock members 23a and 23b are provided along the inner surfaces of the movable rails 22a and 22b, and are attached to the movable rails 22a and 22b so as to be rotatable around a fulcrum 26a. Claw portions (not shown) projecting outward are provided on the outer surfaces of the lock members 23a and 23b, and the claw portions move in the vertical direction as the lock members 23a and 23b rotate. The position where the claw portions of the lock members 23a, 23b are fitted in the concave grooves 25 of the fixed rails 21a, 21b is the lock position, and the position where the claw portions are removed from the concave grooves 25 is the release position. When the lock members 23a and 23b are rotated and fitted into the concave grooves 25 of the fixed rails 21a and 21b, the movable rails 22a and 22b cannot move with respect to the fixed rails 21a and 21b. Further, when the lock members 23a and 23b are rotated in the opposite direction, the engagement between the claw portion and the groove 25 is released, and the lock members 23a and 23b are moved from the lock position to the release position. The movable rails 22a and 22b can move with respect to the fixed rails 21a and 21b. A biasing member (not shown) is attached to the lock members 23a and 23b, and the lock members 23a and 23b are biased in the lock position direction by the biasing members.

  The connecting member 24 is a member that connects the pair of lock members 23a and 23b, and has a U-shape that is bent forward and convex. Both end portions 24a and 24b of the connecting member 24 are provided along the first slide mechanism 5 in parallel to the front-rear direction, and are connected to the pair of lock members 23a and 23b, respectively. The central portion 24c of the connecting member 24 is provided between the pair of movable rails 22a and 22b, and is gently curved so as to protrude rearward as shown in FIG. In addition, a reinforcing rib 27 is provided in the central portion 24c. The connecting member 24 is provided so that the central portion 24c can move in the vertical direction by swinging around the fulcrum 26a of the locking members 23a and 23b together with the locking members 23a and 23b. When the central portion 24c of the connecting member 24 moves upward (see arrow A3 in FIG. 4), the lock members 23a and 23b move to the release position, and the movable rails 22a and 22b become movable. Further, when the central portion 24c of the connecting member 24 moves downward (see arrow A4 in FIG. 4), the lock members 23a and 23b move to the lock position, and the movable rails 22a and 22b become immovable.

<Place 6>
The mounting table 6 is fixed to the floor surface 33 of the cockpit 3 and is a portion on which the seat unit 4 is mounted via the first slide mechanism 5. The mounting table 6 is a box-shaped member in which a space for accommodating a device such as an air conditioner is provided. The front end portion 6a of the mounting table 6 is disposed at a distance from the front wall portion 3a of the cockpit 3 at a rear side (see FIG. 7), and the front end portion 6a of the mounting table 6 and the front wall portion 3a of the cockpit seat 3 The space is where the operator's feet are placed.

<First operation member 7>
The first operation member 7 is a member that is provided on the mounting table 6 and switches between the released state and the locked state of the first slide mechanism 5. As shown in FIGS. 4 and 5, the first operation member 7 has a shape bent in an L shape, and includes a shaft portion 7 a and a contact member 7 b fixed to a side surface of the shaft portion 7 a. It has a gripping portion 7c connected to the front end of the shaft portion 7a at an angle of about 90 degrees.

  The shaft portion 7a is disposed along the front-rear direction, and is fixed to the upper surface of the mounting table 6 so as to be rotatable about an axis extending in the front-rear direction by a pair of fixing members 28a, 28b. The shaft portion 7a is disposed below the connecting member 24, and the pair of fixing members 28a and 28b are disposed at a distance in the front-rear direction with the connecting member 24 interposed therebetween.

  The contact member 7b is an elongated plate-like member extending in the front-rear direction, and can rotate together with the shaft portion 7a to press the connecting member 24 upward.

  The grip portion 7c is disposed along a plane orthogonal to the front-rear direction, and the grip portion 7c is provided so that the shaft portion 7a can rotate about the axis, so that the grip portion 7c has a connection portion with the shaft portion 7a. The center is rotatable along a plane orthogonal to the front-rear direction (see arrows A5 and A6 in FIGS. 3 and 4). The first operation member 7 is provided so as to protrude forward from the front end 6 a of the mounting table 6, and the gripping part 7 c is positioned forward of the front end 6 a of the mounting table 6.

  A biasing member 29 is provided at the rear end portion of the shaft portion 7a of the first operating member 7, and biases the shaft portion 7a in the direction in which the contact member 7b moves downward. Further, the first operating member 7 is urged by the urging member 29 to prevent the gripping portion 7c from rattling or the first operating member 7 from rattling in the front-rear direction when the gripping portion 7c is not operated. Has been.

[Operations for adjusting the seating position]
In the cockpit 3 of this construction vehicle, when the operator adjusts the seating position, the seat body 8 is moved with respect to the movable console base 11, and the seat body 8 is adjusted, and the seat including the movable console base 11 and the seat main body 8 is used. Two types of position adjustments can be performed, including the position adjustment of the sheet unit 4 that moves the unit 4 relative to the mounting table 6. Hereinafter, the operation contents at the time of each position adjustment will be described mainly based on FIG.

<Operation for adjusting the position of the seat body 8]
In the case of adjusting the position of the seat body 8, the operator pulls upward with the grip portion 10c of the second operating member 10 located below the front end portion of the seat surface portion 12 (see arrow A1). Thereby, the lock member moves to the release position, the movable rails 16a and 16b can slide with respect to the fixed rails 15a and 15b, and the seat body 8 can move in the front-rear direction. The seat body 8 is movable forward from the front end of the movable console base 11. Although FIG. 7 shows the movable rail 16a and the fixed rail 15a, the same applies to the movable rail 16b and the fixed rail 15b.

  The operator moves the seat body 8 together with the second operation member 10 in the front-rear direction (see arrow A6), and lowers the gripping portion 10c downward (see arrow A2) in a state where it is placed at a desired position. As a result, the lock member moves to the lock position, the movable rails 16a and 16b cannot slide with respect to the fixed rails 15a and 15b, and the seat body 8 is fixed. FIG. 7B shows a state in which the seat body 8 is moved forward from the state of FIG.

  As described above, the position of the sheet main body 8 is adjusted. The operator can adjust not only the position of the seat body 8 in the cockpit 3 but also the position of the seat body 8 with respect to the console 19 by adjusting the position of the seat body 8.

<Operation for adjusting the position of the seat 4>
Next, in the case of adjusting the position of the seat portion 4, the operator grasps the grip portion 7 c of the first operation member 7 that is located below the movable console base 11 and ahead of the front end portion 6 a of the mounting table 6. It is rotated in a plane perpendicular to the front-rear direction and moved upward (see arrow A5). When the gripping portion 7c rotates, the shaft portion 7a rotates about the axis extending in the front-rear direction, and the contact member 7b shown in FIG. 4 also rotates and moves upward along with the rotation of the shaft portion 7a. The abutting member 7b moves upward to press the connecting member 24 and push the connecting member 24 upward (see arrow A3 in FIG. 4). When the connecting member 24 is pushed upward, the lock members 23a and 23b are moved to the release position, and the first slide mechanism 5 is released. Thereby, the seat part 4 can move in the front-rear direction. As described above, since the connecting member 24 is gently curved in a convex manner to the rear, it is difficult to interfere with the fixing member 28a on the front side of the first operation member 7, and the seat portion 4 is movable forward. The amount is increasing. The seat portion 4 is movable forward from the grip portion 7c of the first operating member 7.

  The operator moves the seat portion 4 in the front-rear direction (see arrow A7), rotates the gripping portion 7c in the reverse direction while being disposed at a desired position, and moves it downward (see arrow A6). When the gripping portion 7c is rotated in the reverse direction, the contact member 7b is also rotated in the reverse direction and moved downward, and accordingly, the connecting member 24 is also moved downward (see arrow A4 in FIG. 4). When the connecting member 24 moves downward, the lock members 23a and 23b move to the lock position, the first slide mechanism 5 is locked, and the seat portion 4 is fixed. FIG. 7B shows a state in which the seat portion 4 is moved forward from the state of FIG.

  As described above, the position of the sheet portion 4 is adjusted. The operator can adjust not only the position of the seat body 8 in the cockpit 3 but also the position of the console 19 by adjusting the position of the seat portion 4.

  Further, by performing the position adjustment of the seat portion 4 and the position adjustment of the seat body 8 together, it is possible to adjust the seating position of the operator more finely.

〔Characteristic〕
In the cockpit 3 of the construction machine 1, a first operation member 7 that is operated when adjusting the position of the seat portion 4 is provided so as to protrude forward from the front end portion 6 a of the mounting table 6. The grip portion 7 c is located in front of the front end portion 6 a of the mounting table 6. For this reason, compared with the case where the 1st operation member 7 does not protrude from the mounting base 6 and the gripping part 7c is located on the mounting base 6, it is easier to grip the gripping part 7c when operating the gripping part 7c. It has become. For this reason, operation of the 2nd operation part is easy.

  In addition, since the grip portion 7 c of the first operation member 7 is positioned in front of the front end portion 6 a of the mounting table 6, the position of the first operation member 7 is lowered and the upper surfaces of the first operation member 7 and the mounting table 6 are set. Even if the gap between the first operating member 7 and the first operating member 7 becomes smaller, the operability of the first operating member 7 is not adversely affected. For this reason, the position of the first operating member 7 can be lowered without deteriorating the operability of the first operating member 7, and interference between the seat body 8 and the grip portion 7c of the first operating member 7 can be easily avoided. can do.

  Further, since the first operation member 7 is provided on the mounting table 6, even if the seat portion 4 moves in the front-rear direction, the first operation member 7 does not move in the front-rear direction. Further, the operation direction of the first operation member 7 is not a front-rear direction but a direction along a plane orthogonal to the front-rear direction. For this reason, even if the 1st operation member 7 protrudes ahead from the front-end part 6a of the mounting base 6, it does not move any further forward and there is no possibility of narrowing the space under the operator's feet. Further, there is no possibility that the first operating member 7 interferes with the front wall portion 3a of the cockpit 3.

  As described above, in the cockpit 3 of the construction machine 1, the first operating member 7 is provided not on the seat portion 4 but on the mounting table 6, so that space restrictions in the cockpit 3 can be reduced.

Second Embodiment
The cockpit 3 of the construction machine 1 according to the second embodiment of the present invention includes a first operation member 30 shown in FIG. The first operating member 30 is switched between a released state and a locked state of the first slide mechanism 5 by operating the grip portion 30c in the vertical direction.

  The first operating member 30 has a U-shaped bent shape, and grips a pair of shaft portions 30a and 30b arranged in parallel with each other in the front-rear direction and the front ends of the shaft portions 30a and 30b. Part 30c. The rear ends of the shaft portions 30a, 30b are fixed to the upper surface of the mounting table 6 by a pair of fixing members 31a, 31b so that the first operating member 30 can swing in the vertical direction with the rear end as a fulcrum. Has been. For this reason, the grip part 30c can be moved up and down by the first operating member 30 swinging. The first operating member 30 is disposed so as to protrude forward from the front end portion 6 a of the mounting table 6, and the gripping portion 30 c is positioned in front of the front end portion 6 a of the mounting table 6. The rear ends of the shaft portions 30 a and 30 b of the first operation member 30 are located behind the connecting member 24. Further, the first operation member 30 is located below the connecting member 24.

  Other configurations are the same as those in the first embodiment.

  In the cockpit 3 of the construction machine 1, when the position of the seat portion 4 is adjusted, the operator holds the grip portion 30 c of the first operation member 30 and pulls it upward. When the grip portion 30c moves upward, the shaft portions 30a and 30b of the first operation member 30 move upward, pressing the connecting member 24 and pushing the connecting member 24 upward. When the connecting member 24 is pushed upward, the lock members 23a and 23b move to the release position, and the first slide mechanism 5 enters the release state (see FIG. 4). As a result, the seat portion 4 can move in the front-rear direction. The operator moves the seat part 4 in the front-rear direction, and lowers the grip part 30c downward in a state where it is arranged at a desired position. When the grip portion 30c moves downward, the shaft portions 30a and 30b of the first operation member 30 also move downward, and accordingly, the connecting member 24 also moves downward. When the connecting member 24 moves downward, the lock members 23a and 23b move to the lock position, the first slide mechanism 5 is locked, and the seat portion 4 is fixed.

  Also in the cockpit 3 of the construction machine 1, the first operating member 30 is provided on the mounting table 6, and the operating direction of the first operating member 30 is not the front-rear direction but the up-down direction. For this reason, like the cockpit 3 of the construction machine 1 according to the first embodiment, the space restriction in the cockpit 3 can be reduced.

<Other embodiments>
(1)
In the above embodiment, the first operating members 7 and 30 are operated so as to rotate or move in the vertical direction within a plane orthogonal to the front-rear direction. The direction is not limited to these, and may be operated in a direction intersecting the front-rear direction. For example, the first operating members 7 and 30 may be operated in the left-right direction.

  Further, the first operation members 7 and 30 may be operated by moving the first operation members 7 and 30 by a slight distance in the front-rear direction compared to the movement amount of the seat portion 4. For example, when the first operating members 7 and 30 are slightly pulled forward, the first slide mechanism 5 is released, and when the first operating members 7 and 30 are slightly pushed back, the first slide mechanism 5 is It may be locked. Also in this case, the space restriction in the cockpit 3 can be reduced as compared with the case where the first operating members 7 and 30 move together with the seat portion 4.

(2)
In the above-described embodiment, two kinds of position adjustment, that is, the position adjustment of the seat portion 4 and the position adjustment of the seat body 8 are possible. However, in the cockpit 3 of the construction machine 1 that can only adjust the position of the seat portion 4. The present invention may be applied. Also in this case, the space restriction in the cockpit 3 can be reduced.

  Further, the present invention may be applied to the cockpit 3 of the construction machine 1 that can only adjust the position of the seat body 8. In other words, the provision of the first operating member 7 and the first slide mechanism 5 for adjusting the position of the seat body 8 can also increase the space in front of the seat body 8.

  However, in the cockpit 3 of the construction machine 1 capable of adjusting the position of both the seat portion 4 and the seat body 8, the space restriction in the cockpit 3 tends to increase, and the present invention is more effective.

(3)
In the above embodiment, the mounting table 6 (mounting unit) is a member provided on the floor surface 33 of the cockpit 3, but the floor surface 33 of the cockpit seat 3 may be used as the mounting unit. That is, the first operating member 7 and the fixed rails 21 a and 21 b may be attached to the floor surface 33 of the cockpit 3. In this case as well, as in the above-described embodiment, the space in front of the seat body 8 can be increased. However, from the viewpoint of facilitating the operability of the first operating member 7, the mounting table 6 is a member provided on the floor surface 33 of the cockpit 3 as in the above embodiment, and the first operating member 7. Is more preferably provided so as to protrude from the front end 6 a of the mounting table 6.

(4)
In the above embodiment, the sliding direction of the seat portion 4 and the seat body 8 is the front-rear direction, but may be other directions such as the left-right direction.

(5)
In the first embodiment, the gripping portion 7c can take a state of rotating downward from the horizontal position (see FIG. 3), but the gripping portion 7c may be provided to be horizontal when not being operated. . Further, the grip portion 7c may be held horizontally by a spring or the like.

  INDUSTRIAL APPLICABILITY The present invention has an effect of reducing the space restriction in the cockpit and is useful as a cockpit and a construction machine for construction machines.

External view of construction machine. Front view of the cockpit. An enlarged view of part of the cockpit. The perspective view showing the structure of a 1st slide mechanism, a mounting base, and a 1st operation member. The top view showing the structure of a 1st slide mechanism, a mounting base, and a 1st operation member. The perspective view which shows the structure of a 1st slide mechanism. The side sectional view showing movement at the time of position adjustment of a sheet part and a sheet main part. The top view showing the structure of the 1st slide mechanism which concerns on 2nd Embodiment, a mounting base, and a 1st operation member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Construction machine 3 Cockpit 4 Seat part 5 1st slide mechanism 6 Mounting stand (mounting part)
7, 30 1st operation member 8 Seat body 9 2nd slide mechanism 10 2nd operation member 11 Movable console stand 21a, 21b Fixed rail 22a, 22b Movable rail 23a, 23b Lock member 24 Connecting member

Claims (6)

The seat where the operator sits,
A first slide that supports the seat portion and can be switched between a release state in which the seat portion is movable in a predetermined slide direction and a lock state in which the seat portion is fixed at a desired position along the slide direction. Mechanism,
A placement portion on which the sheet portion is placed via the first slide mechanism;
A first operating member that is provided in the mounting portion and switches between the released state and the locked state of the first slide mechanism;
Cockpit of construction machinery with. The first operating member is switched along a plane orthogonal to the sliding direction to switch between the released state and the locked state of the first slide mechanism;
The cockpit of the construction machine according to claim 1. The first operating member is switched in the released state and the locked state of the first slide mechanism by being operated in a direction crossing the slide direction.
The cockpit of the construction machine according to claim 1. The first slide mechanism includes:
A pair of fixed rails fixed to the mounting portion and disposed at a distance in a direction perpendicular to the sliding direction;
A pair of movable rails fixed to the seat portion and provided slidably with respect to the pair of fixed rails;
A pair of movable rails, each of which is provided on each of the pair of movable rails, and is movable to a locked position where the movable rail is not movable with respect to the fixed rail, and a release position where the movable rail is movable relative to the fixed rail. A locking member of
A connecting member that connects the pair of locking members;
Have
The first operating member moves the lock member by pressing the connecting member, and switches between the released state and the locked state of the first slide mechanism;
The cockpit of the construction machine according to any one of claims 1 to 3. The seat portion is
The seat body,
A second slide mechanism that supports the seat body and can be switched between a released state that allows the seat body to move in the slide direction and a locked state that fixes the seat body at a desired position along the slide direction. When,
A second operating member that switches between the released state and the locked state of the second slide mechanism;
A movable console base on which the seat body is placed via the second slide mechanism;
Have
The first slide mechanism supports the movable console base,
The mounting section is fixed to the floor of the cockpit,
The first operating member is provided so as to protrude from the placement portion in the sliding direction.
The cockpit of the construction machine according to any one of claims 1 to 4.   A construction machine comprising the cockpit according to any one of claims 1 to 5.

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