JPH0327100Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Field of Use The present invention relates to a control box device for a construction vehicle, etc., in which a control lever for a work machine, etc. is housed inside and placed on one side of the driver's seat.

Prior Art FIG. 3 shows a driver's seat a and a control box b placed on the left side of the driver's seat a. In a vehicle having such a control box b, there is a Since there is little space, this becomes a hindrance when going up and down from the driver's seat a.

For this reason, the control box b is rotatable in the vertical direction. When the control box b is rotated upward, the work implement control lever d is locked by a locking mechanism to prevent malfunction.

However, in the conventional control box b, there is no relationship between the locking mechanism of the work implement control lever d and the locking mechanism of the control box b.

Problems to be solved by the invention In the above conventional example, the work equipment control lever d
This posed a safety problem because control box b could be moved even if the control box b was not locked.

Means and Effects for Solving the Problems The present invention was developed in view of the above, and is provided with a control box on the floor of the driver's seat that engages the control box at both ends when the control box rotates within a predetermined rotation range. A first lock lever that locks the lock is detachably provided, and a second lock lever that locks the first lock lever in a locked state is detachably attached to the control box when the control box is rotated forward. A third lock lever for locking the control lever is provided in the vicinity of the control lever, and a third lock lever for locking the control lever is detachably provided, and the third lock lever and the second lock lever are connected to each other.
The second lock lever is in the locked state and the third lock lever is in the free state, and vice versa, so that the control box can be rotated forward and used. When the third locking lever is set in the free state, the control box is locked in its operating state, and when the third locking lever is set in the locked state, the control box is locked in the operating state. Lock lever 2 is set in a free state so that the control box can be rotated rearward.

Embodiment An embodiment of the present invention will be described based on FIGS. 1 and 2.

In the figure, 1 is a control box for the work equipment located on the left side of the driver's seat, and 2 is a control lever for the work equipment that protrudes from the top of the control box 1.The control lever 2 is connected to a cable or link (not shown). It is connected to the control device of the work machine actuator. The control box 1 is supported by pins 5 on the floor 4 of the driver's seat so as to be tiltable in the front and rear directions. Reference numeral 6 designates a first lock lever that locks the control box 1 at both end positions of a predetermined tilting range. be. The first lock lever 6 has a control box 1.
An elongated hole 8 is provided over the rotation range, and locking recesses 9a and 9b facing upward are provided at both ends of the elongated hole 8. Further, the first lock lever 6 is urged downward by a spring 10. 11 is the elongated hole 8 of the first lock lever 6 and the locking recesses 9a and 9b.
This pin 11 is fixed to the control box 1.

Reference numeral 12 designates a second lock lever that locks the first lock lever 6 in its locked state, and a locking recess 9a on the front side of the first lock lever 6.
The first lock lever 6 is pivotally supported on the control box 1 so as to be freely rotatable over a range of a position in which it contacts and locks the upper surface of the first lock lever 6 with a pin 11 engaged therein, and a position in which it is released. There is.

Reference numeral 13 denotes a third lock lever pivotally supported on the upper part of the control box 1, and when the third lock lever 13 rotates in one direction, it engages with a locking protrusion 14 provided on the control lever 2 and locks it. A locking piece 15 is provided for locking. This third lock lever 13 and the second lock lever 12 are connected to each other when the second lock lever 12 is in the locking state.
3 becomes free, and the second lock lever 12
is in a free state, the third lock lever 13
16 so that the relationship is such that the
are connected.

In the above configuration, the working machine is controlled by the control lever 2 while the control box 1 is tilted forward (to the left in FIG. 1). At this time, the pin 11 of the control box 1 is engaged with the locking recess 9a on the front side of the first lock lever 6. Also at this time, the third lock lever 13
is in a free state, so the second lock lever 1
2 is in the locked state, the first lock lever 6 is held in the locked state, and the control box 1
is locked when in use.

To rotate the control box 1 rearward (rightward in FIG. 1), first lock the third lock lever 13, engage the lock piece 15 with the locking protrusion 14 of the control lever 2, and then lock the control box 1. Lock 2. In this state, the second lock lever 12 becomes free in conjunction with this, and the first lock lever 6 becomes free. Then, by depressing the pedal 7, the first lock lever 6 is rotated upward and the pin 11 is removed from the locking recess 9a. In this state, when the control box 1 is rotated rearward along the elongated hole 8, the pin 11 engages with the locking recess 9b on the rear side at the end thereof, and the control box 1 is locked in a rearward tilted state.

To tilt the control box 1 forward and bring it into use, the above procedure is performed in reverse.

Effects of the invention According to the invention, when the control box 1 is rotated rearward when not in use, the control lever 2 is always in the locked state, which prevents carelessness when the control box 1 is rotated rearward. It is possible to improve safety by preventing the control lever from being operated by the operator.

[Brief explanation of the drawing]

Figures 1 and 2 schematically show the main parts of an embodiment of the present invention. Figure 1 is a side view, Figure 2 is a sectional view of the main parts, and Figure 3 is a control box in the driver's seat. FIG. 2 is a perspective view showing the arrangement relationship. 1 is the control box, 4 is the floor, and 6, 12, and 13 are the first, second, and third lock levers.

Claims (1)

[Scope of utility model registration request] In a control box device for a vehicle, a control box 1 having a control lever 2 for a work machine is supported on a floor 4 of a driver's seat so as to be tiltable in the longitudinal direction. A first lock lever 6 is detachably provided to lock the control box 1 at both ends thereof when the control box 1 is rotated. A second lock lever 12 for locking the lock lever 12 in the locked state is provided so as to be freely lockable and detachable.
Further, a third lock lever 13 for locking the control lever 2 is detachably provided near the control lever 2, and the third lock lever 13 and the second lock lever 12 are connected to each other.
A control box device for a vehicle, characterized in that the lock lever 12 is connected in a locked state and the third lock lever 13 is in a free state, and the third lock lever 13 is in the opposite state.