摘要:
An operation cabin structure for a construction machine, which facilitates production of an operation cabin and enhances productivity of the cabin, where the cabin is formed in a box-like shape constructed by joining panels, such as side, rear, and roof panels, to pillars. The pillars forming the operation cabin (2) includes compound pillars (16, 18) each formed by arranging a pair of pillar members (20, 22) next to and in contact with each other. Panel assemblies (4, 6, 8) , adjacent to each other, are joined to the pillar members (20, 22) of the compound pillars (16, 18).
摘要:
Provided is a lock device for locking a front window capable of freely opening and closing at the closed position and the opened position in which the number of parts is reduced and the operational feeling during its releasing operation is improved. The lock device comprises a lock mechanism part (7) installed on the front window side and lock reception bodies of the closed side and the opened side respectively installed on the cab side. The lock mechanism part (7) includes a lock body (10) the attitude of which can be changed among the neutral attitude, the closed side lock attitude and the opened side lock attitude, a holding member (15) for holding the closed side lock attitude and the opened side lock attitude of the lock body (10), and an operation lever (16) for release acting on the holding member (15) to release the holding of the lock body by the holding member.
摘要:
In adjustment of the height of a console in a construction machine, an apparatus for adjusting the height of the console can adjust the height with ease without largely shifting the position of an operation lever in the front-rear direction. The apparatus includes a supporting element 1, being arranged on the side of the driver's seat and extending in the direction from the front to the rear of the driver' s seat, that upwardly supports the console; an axis element 2, horizontally extending in the direction between the right side and the left side of the driver' s seat, being supported rotatably with respect to the driver's seat; a first supporting axis 7, being engaged with the driver's seat, that supports a first end of the supporting element 1 such that the first end of the supporting element 1 slides in the direction from the front to the rear of the driver's seat and pivots around the first supporting axis 7; a swinging element 4 having a first end which is engaged with the axis element 2 and which is pivotable around the center axis of the axis element 2; and a second supporting axis 8, being engaged with a second end of the swinging element 4, around which a second end of the supporting element 1 pivots.
摘要:
A reinforcement (18) is attached to the right angle corner between the right rear side column material (10) and the right underside beam material (15) which form the cab (5) frame of a hydraulic shovel (1) so that buckling of the thin right underside beam material (15) can be prevented. The reinforcement (18) is made to penetrate through a penetrate portion (15d) formed on the upper side surface of the right underside beam material body (15a) so that the second bent surface portion (18b) formed on the reinforcement (18) is abutted against the lower side surface of the right underside beam material body (15a), and a thick floor plate (20) is abutted against the lower side surface of the right underside beam material body (15a). Consequently, when a load works in the direction for decreasing the angle between the right rear side column material (10) and the right underside beam material (15), the load is received by the floor plate (20) and even if the right underside beam material (15) is a thin hollow material having weak strength, the right underside beam material (15) is not buckled but protected thus achieving an increase in the strength of the cab (5). FIGS. 4A, 4B and 4C
摘要:
Provided is a lock device for locking a front window capable of freely opening an closing at the closed position and the opened position in which the number of parts is reduced and the operational feeling during its releasing operation is improved. The lock device comprises a lock mechanism part installed on the front window side and lock reception bodies of the closed side and the opened side respectively installed on the cab side. The lock mechanism part includes a lock body the attitude of which can be changed among the neutral attitude, the closed side lock attitude and the opened side lock attitude, a holding member for holding the closed side lock attitude and the opened side lock attitude of the lock body, and an operation lever for release acting on the holding member to release the holding of the lock body by the holding member.
摘要:
A console 19 is upturnably provided adjacent to an access area for gaining access to a seat installed in a work machine. The console 19 is provided with a release lever 25, which is adapted to disengage a console securing locking portion 24 and thereby enable the console 19 to be upturned. The console 19 is provided with a hydraulic locking lever 32. Shifting the hydraulic locking lever 32 to an opening position for unblocking the access area 18 performs a locking function so as to disable operation of the work machine, and shifting the hydraulic locking lever 32 to a blocking position for blocking the access area 18 performs an unlocking function, thereby enabling operation of the work machine. Provided in relation to the release lever 25 is a lever operation restraining mechanism 43 that is adapted to disengage the release lever 25 and thereby enable the console 19 to be upturned when the hydraulic locking lever 32 is in the opening position, and restrain the release lever 25 and thereby prevent upturning operation when the hydraulic locking lever 32 is in the blocking position. The invention provides an upturning device for an operation lever mounting body of a work machine that is capable of ensuring that the work machine is maintained in an inoperable state when the operation lever mounting body is upturned.
摘要:
To reduce frictional force at a corner and ensure sealability between the front window and a sealant when the front window is closed in a guide-rail for the font window in which a roller guide and a cable guide are juxtaposed. A guide-rail (10) is formed of a front guide-rail (10A), an upper guide-rail (10B) and a corner guide-rail (10C), wherein the front guide-rail (10A) has a cable guide (10Ab) located on the front side of a roller guide (10Aa), the upper guide-rail (10B) has a roller guide (10Ba) located on the upper side of a cable guide (10Bb) with the front portion of a roller guide (10a) being extended toward the front surface (2) of a cab, and the corner guide-rail (10C) is constituted such that a cable guide (10Cb) interconnecting the cable guides (10Ab, 10Bb) of the front and upper guide-rails is formed on the side of outer diameter of a roller guide (10Ca).
摘要:
To facilitate the production of a cab in the form of a box by joining side, rear and roof panels to pillars, and to improve the productivity. Pillars forming the cab (2) include composite pillars (16, 18) obtained by juxtaposing and joining together the pairs of pillar members (20, 22), and panel assemblies (4, 6, 8) adjacent to the pillar members (20, 22) are joined to the pillar members (20, 22) of the composite pillars (16, 18).