JPH04146822A - Console for industrial vehicle - Google Patents

Abstract

PURPOSE:To certainly stop hydraulic cylinders at an arbitrary telescopic position and steplessly adjust the position of consoles by actuating the hydraulic cylinders by means of single hydraulic control circuit and sliding right and left console along guide rails in the longitudinal direction of a vehicle simultaneously. CONSTITUTION:Guide rails 1 are laid in the longitudinal direction of a vehicle, and consoles 92 is slidably arranged along the guide rails 1, and the console 92 is connected to hydraulic cylinders 2. In order to adjust the position of the console 92, the hydraulic cylinder 2 is actuated. At this moment, in a hydraulic pressure controlling circuit, the working fluid from the hydraulic pressure source is reduced to a proper pressure, and a part of the working fluid is returned to a tank 35. In an electromagnetic switch valve 32, working fluid flow direction is switched, and the working direction of the hydraulic cylinders 2, that is, the sliding direction of the console 92 is determined. In addition, in a check valve 33 and throttle valve 34, the back flow of working fluid is prevented. The working fluid is forked into and supplied to the right and left hydraulic cylinders 2.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a console that is slidably disposed in the longitudinal direction of the vehicle in an industrial vehicle such as a power cylinder.

[Prior art]

Power Noyobel Bulldozer The industrial vehicle for combine harvesters has a structure that allows the console to be manually slid in the front and rear directions of the vehicle, depending on the five working postures. The console is equipped with an operating lever, an operating switch, and the like.

That is, as shown in FIG. 6, for example, in the power shovel 9, the operator 8 bends forward when digging underground foundations. Therefore, as shown in FIGS. 6 and 7, guide rails 93 are laid along the longitudinal direction of the vehicle on both the left and right sides of the seat 91 so that the lever can be operated even when the seat is bent forward. is console 92
are arranged so that they can slide. The console 92 is provided with a locking mechanism (path shown) to fix the console 92 at a required position. The long mechanism has a total of four positions, for example, two forward positions, one rearward position, and a neutral position.

[Problem to be solved]

However, conventional consoles for industrial vehicles sometimes have poor workability.

This is because, as mentioned above, the console is designed to be locked in a limited range of multiple stages in the longitudinal direction of the vehicle. Further, for this reason, depending on the physique of the operator of the industrial vehicle, the console cannot be locked at a position most suitable for the operator.

Therefore, there is a risk that the operator's working position may be strained, which may reduce work efficiency.

In view of such conventional problems, the present invention allows stepless position adjustment. The aim is to provide a console for industrial vehicles.

[Means for solving problems]

According to the present invention, guide rails are laid on the left and right sides of the seats in the longitudinal direction of the floor of the vehicle, a console is slidably disposed on the guide rails, and hydraulic cylinders are connected to both the left and right consoles, respectively. The console for an industrial vehicle is characterized in that the hydraulic cylinders are configured to be simultaneously driven and stopped at any position by the action of an electromagnetic switching valve in a single hydraulic control circuit.

The most noteworthy feature of the present invention is that the console is connected to a hydraulic cylinder for stepless position adjustment. That is, a hydraulic cylinder is used which can be stopped at any position by the action of an electromagnetic switching valve in a hydraulic control circuit.

Additionally, the hydraulic cylinders are connected to a single hydraulic control circuit. That is, the left and right hydraulic cylinders are simultaneously driven to slide the left and right consoles at the same time.

Preferably, the hydraulic cylinder is connected to the hydraulic mechanism of the industrial vehicle through five hydraulic control circuits.

This eliminates the need to provide a new power source.

It becomes possible to use the hydraulic mechanism of an industrial vehicle as a power source for the console. In addition, as a means for connecting the hydraulic cylinder, there are two methods: installing the hydraulic cylinder inside the console and connecting its rond part to the frame of the industrial vehicle (see examples), and fixing the hydraulic cylinder to the frame of the industrial vehicle and connecting the cylinder to the frame of the industrial vehicle. There is a method of connecting the rondo section to the console.

In addition, it is desirable that the console on the side where the seat rests can be configured to slide further backwards (
(See Examples).

(Function) In order to adjust the position of the console in the present invention, a hydraulic cylinder is actuated via a single hydraulic control circuit.The expansion and contraction of the hydraulic cylinder causes the left and right consoles to move forward and backward of the vehicle along the guide rail. Since the hydraulic cylinder is used in this way, the console moves smoothly and does not require any effort from the operator.

Then, the operation of the hydraulic cylinder is stopped depending on the physique of the operator.

As a result, the left and right hydraulic cylinders are reliably stopped simultaneously at any desired extension/retraction position by the action of the electromagnetic switching valve in a single hydraulic control circuit. That is, the left and right consoles are locked at arbitrary positions.

〔effect〕

Therefore, according to the present invention, the position of the console can be adjusted steplessly. We can provide consoles for industrial vehicles.

〔Example〕

Regarding the industrial vehicle console according to the embodiment of the present invention,
This will be explained using FIGS. 1 to 5.

In this example, as shown in FIGS. 1 and 4A, guide rails 1 are laid in the longitudinal direction of the vehicle. and,
The console 92 is slidably disposed along the guide rail 1. The console 92 is connected to the hydraulic cylinder 2.

As shown in FIGS. 1 and 2, the guide rail 1 includes a lower rail III fixed to the frame of an industrial vehicle;
Upper rail 1 sliding along the lower rail III
12, and an auxiliary lower rail 1 that assists the lower rail 111.
21, and an auxiliary upper rail 122 that slides along the auxiliary lower rail 121. The upper rail 112
and the auxiliary upper rail 122 are integrally fixed by bolts 16. They may be fixed by spot welding.

As shown in FIG. 2, a large diameter bearing 13 and a small diameter bearing 15 are interposed between the lower rail 111 and the upper rail 112. Further, a small diameter bearing 14 is interposed between the lower rail 111 and the auxiliary lower rail 121.

Further, as shown in FIG. 1, a known locking device F18 is attached to the auxiliary lower rail 121. The lock device ff
1B includes a case 181 and a support shaft 1 as shown in FIG.
A lock main body 182 rotatably supported on the case 181 by a lock member 83, and a lock piece 1820 provided at the lower end of the lock main body 182.

It has a spring 184 interposed between the lock body 182 and the case 181. The upper end of the lock body 182 is connected to a lock release lever 185 via a wire 186. The lock release lever 185 is rotatably attached to the console 92, as will be described later.

On the other hand, the lower rail 111 has cutouts 171 and 17 for engaging with the lock piece 1820 of the lock device 18.
2 will be provided. The notch 171 is set at the normal position. Moreover, the notch 172 is set at the rear of the normal position.

This is to increase the backward stroke of the console 92.

A console 92 is arranged on the upper rail 112. The console 92 includes known hydraulic control equipment (
(Illustrated route) will be installed internally. Further, on the console 92, in addition to the lock release lever 185, the aforementioned operation lever, operation switch, etc. are installed. Auxiliary upper rail 122. Auxiliary lower rail 121. The lower rail 111 has a long hole 1 through which the piping from the hydraulic control equipment is inserted.
220 1210.1110 is provided 0 Although not shown, similar elongated holes are provided in the upper rail 112 as well.

The hydraulic cylinder 2 is installed inside and fixed to the console 92. Rod portion 21 of the hydraulic cylinder 2
is connected to the frame 4 of the industrial vehicle. Further, the hydraulic cylinder 2 is connected to a hydraulic control circuit through a pipe 30.

Note that the two positions shown in this example are the normal position and the rear 1st stage.
A guide rail 1 having a stepped lock structure is arranged on the left side of a seat in an industrial vehicle. This is because normally, in order to get on and off the seat from the left side, it is necessary to slide the console 92 significantly backwards.

In addition, on the right side of the seat, the above-mentioned auxiliary lower rail 12
A console 922 is provided in which the controller 1 is fixed at the normal position.

The hydraulic cylinders 2 for sliding the left and right consoles 92 are controlled by the same hydraulic control circuit as shown in FIG.

Since this example is configured as described above, it exhibits first-order effects.

That is, when performing the positive adjustment of the console 92, operate the operation switch on the console 92,
The hydraulic cylinder 2 is operated by the hydraulic control circuit.

The hydraulic control circuit is as shown in FIG.

The pressure reducing valve 31 reduces the pressure of hydraulic fluid from a hydraulic source in the industrial vehicle to an appropriate pressure. At this time, a part of the hydraulic oil 9 is returned to the tank 35.

next,! The value switching valve 32 switches the flow direction of one hydraulic oil. This determines the operating direction of the hydraulic cylinder 2, that is, the sliding direction of the console 92.

The check valve 33 and the throttle valve 34 prevent backflow of hydraulic oil.

Thereafter, the three hydraulic fluids are branched and supplied to the left and right hydraulic cylinders 2. As a result, the left and right hydraulic cylinders 2 are operated simultaneously by a single hydraulic control circuit.

As the hydraulic cylinder 2 expands and contracts, the left and right consoles 92 simultaneously slide along the guide rail 1 in the longitudinal direction of the vehicle. At this time, as shown in FIGS. 4A and 4B, the upper rail 1 to which the console 92 is fixed is
12 and the auxiliary upper rail 122 slide forward (in the F direction) along the lower rail 111 and the auxiliary lower rail 121. In this way, the use of the hydraulic cylinder 2 makes the movement of the console 92 smooth. Moreover, no operator effort is required.

Then, when the console 92 slides by a certain amount, the operation switch is operated to stop the operation of the hydraulic cylinder 2 according to the physique of the operator. the result,
Due to the function of the ii magnetic switching valve 32 in the hydraulic control circuit,
The hydraulic cylinder 2 is reliably stopped at any extended/contracted position. That is, the console 92 is locked at an arbitrary position.

Next, when getting on the seat, make sure to use the console 9.
2, pull the lock release lever 185 on the console 92, as shown in FIG. This allows the lock body 1 to be connected via the wire 186.
82 is pulled upward.

As a result, the lock body 82 rotates clockwise about the support shaft 183 and is unlocked from its normal position. That is, as shown in FIG. 1, the notch 171 set in the normal position and the lock body 1820 opening piece 1
The engagement state with 820 is released. Therefore, it becomes possible to slide the console 92 rearward.

Therefore, the console 92 is slid rearward while remaining in the unlocked state. At this time, as shown in Figure 4C,
The auxiliary lower rail 121 slides rearward (in the R direction) along the lower rail 111.

The position of the lock piece 1820 and the notch 172
The lock piece 1820 and the notch 172 engage with each other when the positions of the lock piece 1820 and the notch 172 coincide with each other. That is, a locked state is obtained. As shown in FIG. 3, the lock body 182 is biased toward the notch 172 by the spring 184, so that it is naturally locked.

In this way, according to the two examples, the position of the console 92 can be adjusted steplessly according to the physique of the operator. Therefore, the workability of industrial vehicles is greatly improved.

In addition, when getting on the seat, the console 9
2 can be slid backwards.

This makes getting on and off the train easier.

[Brief explanation of drawings]

1 to 5 show a console for an industrial vehicle according to an embodiment; FIG. 1 is an exploded perspective view thereof, FIG. 2 is a sectional view thereof, and FIG. 3 is a partially enlarged sectional view thereof. 4A to 4C are operation explanatory diagrams, FIG. 5 is a hydraulic control circuit diagram, and FIGS. 6 and 7 are conventional examples. FIG. 6 is a side view of a power shovel as an industrial vehicle, and FIG. 7 is a plan view thereof. 110. Guide rail 111, , lower rail. 112,, Upper rail. 121, auxiliary lower rail. 122, Auxiliary upper rail 1B, Lock device 290. hydraulic cylinder. 92...Console application Daitoyoda Gosei Co., Ltd. Agent Patent attorney Yoshiyasu TakahashiFigure 2Figure 3Plant diagramFigure 1 Chrysanthemum figureNorth figure 5Figure 6

Claims (1)

[Claims] Guide rails are laid on the left and right sides of the seats in the longitudinal direction of the floor surface of the vehicle, and a console is slidably disposed on the guide rails, and a hydraulic cylinder is connected to each of the left and right consoles. A console for an industrial vehicle, characterized in that it is configured to be simultaneously driven and stopped at any position by the action of electromagnetic switching valves in a single hydraulic control circuit.