JPH0743212Y2 - List console box lock / unlock device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is a list provided with a working machine operating lever (hereinafter simply referred to as a working machine lever) in a construction machine, in particular, a hydraulic power shovel that is an upper swing working machine. The present invention relates to a device for locking / unlocking the forward / backward movement of a console box.

(Prior Art) Conventionally, as a working machine lever of a hydraulic power shovel, a long lever system standing upright in front of a driver's seat and a vehicle and a working machine near a driver's seat 2 in a cab 1 as shown in FIG. There is a wrist control system (hereinafter simply referred to as a liscon) in which a work machine lever 4 is provided in a control box 3 that houses the control device of the
There is a tendency to increase in recent years because it can be operated with the elbow on the back, or because the legs are widened and the work posture and lifting and lowering are easier, but the squirrel-con method has the work equipment lever 4 near the driver's seat. In the case of excavating the lower part of the driver's seat 2, that is, the feet, the operator operates the work implement lever 4 while standing up from the driver's seat 2 and watching the excavation situation from the window, but the work implement lever is at the rear, and the hand is moved to the back. It will be operated by turning. In addition, 6 is a turning operation lever.

In order to eliminate such an unnatural work posture, the applicant of the present invention has previously described the console box 3 in Japanese Patent Application No. 63-3896 shown in FIG.
It has been proposed that the guide rail mechanism 8 is moved back and forth on the support base 7 of the armrest 5, but when the actual machine is adopted, the rail mechanism 8 is used as a device for locking and unlocking at a predetermined position. Engagement groove 9 drilled in
The lock claw 10 to be inserted and removed is attached to the lower side surface of the console box 3, and the operation lever 11 fixed to the lock claw 10 is extended to the front to insert and remove the lock claw 10.

(Problems to be solved by the invention) However, in the above structure, the lock / release operation lever 11 has to be mounted in parallel along the outer side of the console box 3, so that there is a problem that space is restricted. There is also a problem that the operation position of the operation lever 11 is determined by the position of the guide rail mechanism 8 and the operator has to lean forward and extend his or her hand to operate.

(Means for Solving Problems) The present invention has been made in view of the above, and is installed on the upper surface of a support stand installed in the driver's seat so as to be movable in the front-rear direction by a guide rail mechanism, In one
Also, in a lock / unlock device for a console box that positions a console box equipped with a working machine operating lever at a predetermined position, the console boxes are installed on the left and right sides of the driver's seat, respectively, and the guide holes are provided on the guide rail mechanisms. A mating groove, and a locking claw that is engaged with and disengaged from the engaging groove and that is installed in each of the console boxes,
Each of the console boxes, or a push button installed in the vicinity of the armrest, by operating the push button, the lock claws attached to the console box are engaged and released in the engagement grooves, and This is to solve the above-mentioned problem by moving it in the front-rear direction and positioning it at a predetermined position.

By operating the push button installed near the console box or armrest, the engagement between the lock claw attached to the console box and the engagement groove is released, and the console box is moved in the front-rear direction to lock the lock claw at a predetermined position. By engaging with the engaging groove, the console box can be positioned at a predetermined position, and the optimal console box front-rear direction position is set for the work. Hold the side console box in that position, move only the door side console box backwards, leave the space, and move the door side console box based on the non-door side console box when seated. You can easily move the console box to the optimum position. Properly it is installed in an armrest, since the lock claw is installed on the console box, no relative movement in the push button and the locking pawl, disengaging operation is ensured between the locking claw and the engaging groove by the push button.

(Embodiment) An embodiment of the present invention will be described below with reference to the accompanying drawings.
The same members as those of the conventional one described in FIG. 6 are designated by the same reference numerals.

In FIG. 1, an armrest 5 of a driver's seat has a console box 3 laid on a support base 7 that can move back and forth integrally with the armrest 5. A work machine lever 4 is provided on the upper front end of the console box 3. The console box 3 is provided on each of the armrests 5 on both sides, but since the mounting structure is the same, the following description will be made on one side.

As shown in FIGS. 1 and 2, the console box 3 can be moved back and forth on the upper surface of the support base 7 integrally with the armrest 5 by a guide rail mechanism 8.

This guide rail mechanism 8 will be described in more detail. A lower guide rail 12 laid on the upper surface of the support base 7 has a shape in which both ends are bent upward, while an upper guide that engages with the lower guide rail 12. The rail 13 is also laid on the lower surface of the console box 3 and has a shape in which both ends are bent downward to engage with the lower guide rail 12. Further, guide balls 14 and rollers 15 are vertically inserted into both ends of the upper and lower guide rails 12 and 13, respectively, and a channel 17 into which a sliding roller 16 is inserted is provided on the lower guide rail 12. Made of mounted ones.

Engagement grooves 19 are arranged at required intervals on a side wall of the channel 17 of one side of the guide rail mechanism 8 of the console box 3 at a passage side 18, and lock claws are provided so as to be able to move in and out of the engagement grooves. Lower leg 21 of lock claw 20 rotatably supported by pin 37 fixed to upper guide rail 13
Project from the perforations 22 into the passage 18. On the other hand, the tip of the wire 24 is attached to the upper leg portion 23 of the lock claw 20, and a spring 26 is interposed between the lock claw 20 and the attachment fitting 25.

The wire 24 is guided from the inside of the console box 3 to the upper side, and the upper end thereof is attached to the lower leg portion 29 of the L-shaped lever 28 rotatably supported by the pin 27. The portion 30 is connected to an operation push button 32 formed on a side wall 31 of the console box 3. Reference numeral 33 is a spring interposed so as to urge the push button 32 in the pushing direction.

Next, a procedure for locking / unlocking the movement of the console box 3 by the above device will be described.

When the push button 32 is pushed in the direction of the arrow shown in the figure, the bifurcated lever 28 rotates about the pin 27 as a fulcrum and the upper leg 30 pulls the wire 24 upward. Therefore, the spring 26 is urged downward to guide rail mechanism. Lock claw 20 that was inserted into the engaging groove 19 of No. 8
Rotates around the pin 20 as a fulcrum and pulls out from the engaging groove 19, and the lock up to that point is released to the console box 3
Can move freely.

Then, when the push button 32 is moved to a predetermined position and the hand is released, the lock claw 20 is automatically inserted into the engaging groove 19 again by the bias of the springs 26 and 33 and locked so that it cannot move.

FIG. 4 shows another embodiment of the present invention in which a lock / unlock operation push button 32 is attached to the tip of the armrest 5, and the armrest 5 is connected via a wire 24 from the lock claw 20 and a spring 26. The wire 24 is inserted through the metal fitting 36 attached to the frame 35 of the armrest where the upper part is softened with sponge 34 so that the elbow can be placed on top, and it is attached to the push button 32 and rotatable by the pin 27 Since it is connected to the bifurcated lever 28 supported by the above, and the operating procedure thereof is the same as that of the previous embodiment, its explanation is omitted.

As described above, since each of the embodiments is based on the wire system,
There is an advantage that the operation force of the push button can be arbitrarily set by adjusting the lever or the spring force, as well as freely guiding to a desired position and performing a long distance operation.

(Effect of the Invention) Since the present invention is configured as described above, it is possible to immediately move the console box back and forth in accordance with the work situation so that the work machine lever is always located at the position where it is most easily operated. The movement can be locked / unlocked with a push-button method that is easy to operate, without the need for a large hand movement.

In addition, even if the operator leaves the desk after the work is completed, if the non-door side console box is held at the optimum position and the seat side console box is moved with reference to the non-door side console box, the console box The moving operation of is easy.

Further, since the push button and the lock claw do not move relative to each other, the engagement and disengagement operation of the lock claw and the engagement groove by the push button is ensured.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view showing a wrist console box of the present invention, FIG. 2 is an enlarged sectional view taken along the line AA of FIG. 1, and FIG. 3 shows another embodiment of the present invention. Partly broken side view, FIG. 4 is an enlarged cross-sectional view of the armrest tip operation push button mounting part of FIG. 3, FIG. 5 is a partially broken schematic side view showing the driver's seat part of the cab, and FIG. FIG. 3 is a perspective view showing a movement lock / unlock device of the wrist console box of FIG. 3 ... Console box, 4 ... Working machine operation lever,
5 ... Armrest, 8 ... Guide rail mechanism, 9, 19 ...
… Engagement groove, 10,20 …… Lock claw, 11 …… Lock and release operation lever, 24 …… Wire, 28 …… Between lever, 32 …… Lock and release operation button.

Claims (1)

[Scope of utility model registration request] 1. A console box, which is installed movably in the front-rear direction by a guide rail mechanism on the upper surface of a support table installed in the driver's seat, is integrated with an armrest, and positions a console box equipped with a working machine operating lever at a predetermined position. In the lock / unlock device for the console box, the console boxes are installed on the left and right sides of the driver's seat, respectively, and the engagement grooves formed in the guide rail mechanisms and the engagement / disengagement in the engagement grooves, and It consists of a lock claw installed in each console box and a push button installed in each console box or in the vicinity of an armrest, and the lock claw attached to each console box is operated by the operation of the push button. A lock / unlock device for a wrist console box, characterized by being engaged / disengaged with.