JP2593587Y2 - Driver's seat armrest - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an armrest of a driver's seat in a construction machine such as a hydraulic excavator, the height of which can be freely adjusted according to the position of the operator and the working condition.

[0002]

2. Description of the Related Art As shown in FIGS. 9 and 10, a console box c, c having operating levers b, b on both left and right sides as operating devices is provided as a control device in a driver's seat a of this type of construction machine. An operator operates the left and right operation levers b and b, which are movable in the front-rear direction, and a traveling lever (not shown) provided in front of the driver's seat a. While doing the work. The operator's posture, the operating lever b in accordance with the working conditions, the driver's seat a in order to adjust the relationship between positions of the b before and after the conventional driver's seat armrest a ₁ is has become possible vertical adjustment to put the operator elbow The armrest a ₁ , the seat a ₂ and the back seat a ₃ are integrated when the front and rear and the up and down adjustment of the driver's seat a are mounted on the left and right sides of the back seat a ₃ of the seat a ₂ as part of the seat a _2. It is supposed to move. The back sheet a ₃ or armrest a ₁ is to be able to angle adjustment. Of course this armrest a ₁ has been proposed that attached to the lever stand d, console box c, c upper surface portion of the d separates recent so as not to affect the adjustment of the back sheet a ₃ of the driver's seat a.

[0003]

However, the conventional armrest attached to the back seat changes its height due to the adjustment movement of the driver's seat even if the angle can be adjusted. There is a drawback that the height of the armrest alone cannot be adjusted according to the position of the operator and the working situation. This point is the same in the armrest attached to the upper surface of the console box of the lever stand, and there is still a disadvantage that the height is constant and cannot be adjusted.

[0004] The present invention is adjusted movement of the driver's seat in which has been made in order to improve the above conventional disadvantages, of course be unaffected by the angle change, a plurality of stages the armrest in a vertical direction high
To provide a driver's seat armrest that can be adjusted.

[0005]

[MEANS FOR SOLVING THE PROBLEMS] To achieve the above object
Meanwhile, the first device of the driver's seat armrest according to the present invention is:
The operation levers are located on the left and right sides of the operator seat and
Operation installed on the upper surface of the console box equipped with
Standing on the console box at the armrest of the seat
Bracket and armrest that are integrally formed
With the armrest support leg, and the bracket and arm
The mrest support leg and the multi-stage
A fixing member that selects and fixes one of the fixing positions
Is provided. The second device is the first device
In the configuration, the through hole provided in the bracket,
One of the multiple through holes provided in the armrest support leg
Position the heel at a predetermined vertical position, and
To the bracket and armrest.
It has a structure with a fixing member for fixing the support leg.
is there.

[0006]

According to the above construction, the armrest is provided with the armrest.
Multi-stage fixed position of the strike support leg set up and down in advance
Can be adjusted to any of the positions. Also,
Bracket and armrest standing on the console box
The armrest support legs that are integrally formed with the
And a plurality of through holes are provided.
Is aligned at a predetermined position in the vertical direction.
Insert the bracket and armrest into the aligned through holes.
Since a fixing member for fixing the strike support leg is provided, the arm
The rest is securely fixed, and the arm is vibrated during operation.
Problems such as a change in the height of the rest do not occur.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the accompanying drawings. 1 to 8 show an armrest according to the present invention, FIG. 1 is a perspective view of a steering device around a driver's seat, FIG. 2 is a side sectional view of the armrest, FIG. 3 is a sectional view taken along line AA of FIG.
Is a sectional view taken along the line BB in FIG. 2, FIG. 5 is an explanatory view showing the structure of the armrest height adjusting mechanism, FIG. 6 is an operational view thereof, and FIGS. 7 and 8 are sectional views showing other embodiments. First the driver's seat 1 in Figure 1 operator sheet you and back sheet or Rannahli,
Front and rear by the operator sheet is not shown adjustment device,
Together has become a vertically adjusted, it has become even Tilting back sheet is the same as the conventional driver's seat. On both left and right sides of the driver's seat 1, there are provided lever stands 2 and 2 as operating devices. Each of the left and right lever stands 2 and 2 has an operation lever stand 3 such as a work machine which can be adjusted back and forth. The console boxes 4 and 4 provided with 3 are also mounted in the same manner as in the prior art. However, the details of the adjusting device and the steering device of the driver's seat 1 will not be described because they are not the gist of the present invention.

The left and right console boxes 4,
4 is provided with an armrest with a height adjustment mechanism on the upper surface thereof .
5 are attached. The height adjustment mechanisms of these two armrests 5 and 5 have the same structure on the left and right sides . A base 6 is erected by bolts 7 on the inner bottom plate 4a of the console box 4 shown in FIG . The base end of an upright bracket 8 for supporting the armrest 5 on the upper surface of the base 6 is fixed with bolts 9 and the upper plate 4 of the console box 4.
It is attached so that it may protrude above the hole 10 previously drilled in b. As shown in FIG. 5, the bracket 8 has a front portion 8a, a back portion 8b and left and right side portions 8a.
Each of the steel plates c and 8c is formed into a hollow box shape by welding, and a notch groove 11 is formed in the front surface 8a in the vertical direction . A plurality of bolt holes 12 a, 12 b, 12 c,
12d and 12e are arranged side by side.

On the other hand, armrests 5 and 5 are provided as shown in FIG.
It is composed of a mrest support leg 13 and a resin portion 16. The armrest support leg 13 is formed in a hollow box shape, and holes 14a and 14b are provided in the back surface 13b.

The armrest constructed as described above
To bracket 8 supporting armrest support leg 13 is fitted slidably Yu vertically to 5,5. Figure
5, the bracket 8 and the armrest support leg 1
3 and a pin 15a that is welded to the front portion 13a of the armrest support leg 13, 15b to the front portion of the bracket 8
The armrests 5 , 5 are set so as to face forward by being inserted into contact with the notch grooves 11 .

Next, in order to fix the armrest support leg 13 slidably and loosely on the bracket 8 at a required position as described above, in the present embodiment, the armrest 5 is adjusted in three steps as shown in FIG. _1), middle _(H 2), and is provided with a lower _{(H 3),} Amure
To secure the strike support leg 13 at the required stage, the Burake <br/> Tsu bets 8 a plurality of bolt holes 12a~12e are provided at an equal pitch _{(h 1),} the front surface of the armrest support leg 13 the two pins 15a on the parts 13a, 15b are welded by _{h 2} pitches (2 × _{h 1).} Bolt holes 12a and 1
2c to the upper position (H ₁ ) and bolt holes 12b
And 12d to the middle position (H ₂ ) and the bolt holes 12c and 12e to the lower position (H ₃ ).

[0012] after having aligned the armrest support leg 13 a required height position _(H 1 _{~H 3)} to slide pins 15a, a 15a to a predetermined bolt holes (12a to 12e),
Back-of pin 15a, the bolt 16a into the threaded holes 17 provided in 15b, 16b armrest support leg 13 1
Bolt hole 1 of bracket 8 from holes 14a, 14b of 3b
After having inserted into one of the 2a~12d, pin 1
5a, adapted to secure at the required stages _(H 1 _{~H 3)} by screwing into the screw hole 17 of 15b. Thus, for example illustrated armrest upper _{(H 1)} from the middle _(H 2)
When changing becomes freely each fixing bolts 16a, 16b each pin 15a, and fixed armrest supporting <br/> legs 13 and the bracket 8 is released by removing from 15b slides, then change the height ( H ₂₎ armrest <br/> support leg 13 down was after re Dopi down 15a until, 15b and bolt holes 12b, aligned and 12d fixing bolt 16a, 16
This is completed by screwing b. In this embodiment, a three-stage height adjustment mechanism is shown. However, the present invention is not limited to this, and it is needless to say that four-stage and five-stage adjustments are possible.

As described above, the exposed portion between the armrest support leg portion 13 and the bracket 8 expands and contracts in accordance with the height adjustment of the armrest 5, and dust and foreign matter enter from the exposed portion, and the appearance is unfavorable. The exposed portion is covered with a boot 19 which is stretchable, and the upper end 18a is attached to the lower end of the support leg 13 and the lower end 18b is fitted around the hole 10 of the console box 4, respectively. The armrest support 13 is extended and retracted following the vertical slide of the armrest 13 to maintain a sealed state, thereby preventing intrusion of foreign matter and improving appearance.

FIGS. 7 and 8 show another embodiment.
First, in FIG. 7, the above-described embodiment uses a fixing bolt, whereas in this embodiment, a knob 19 which is manually turned is employed. FIG. 8 also shows that the above-described embodiment has a plurality of bolt holes. In contrast to the stepped adjustment structure provided at equal pitch intervals, in the present embodiment, the slot 20 is formed so that stepless adjustment can be performed, and the fixing means is a bolt or Any of the knob methods is possible.

[0015]

[Effect of the Invention] According to the present invention, the size of the
The height of the armrest to one of several levels
If adjusted, the height of the armrest may be reduced due to vibration during driving.
The operator's elbow is always stable without any change
Therefore, the operability of the operation lever is improved, and
Can significantly reduce fatigue.

[Brief description of the drawings]

FIG. 1 is a perspective view of a steering device around a driver's seat to which an armrest according to the present invention is attached.

FIG. 2 is a side sectional view of the armrest of the present invention.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a sectional view taken along line BB of FIG. 2;

FIG. 5 is a structural explanatory view of the armrest height adjusting mechanism of the present invention.

FIG. 6 is a view showing an operation of adjusting the height of the armrest according to the present invention;

FIG. 7 is a side sectional view showing another embodiment.

FIG. 8 is a cross-sectional view showing another embodiment.

FIG. 9 is a front view showing a conventional driver's seat turn control device.

FIG. 10 is a side view of the same.

[Explanation of symbols]

1 ... Driver's seat, 2 ... Lever stand, 3 ... Operation lever, 4
... console box, 5 ... armrest, 6 ... base,
8 bracket, 11 notch groove , 12a, 12b, 1
2c, 12d, 12e ... bolt holes, 13 ... armrest support legs, 14a, 14b ... holes, 15a, 15b ... pins ,
16: Armrest resin part, 18: Boots, 19: Knob, 20: Slot.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E02F 9/16 A47C 7/54 B62D 49/00

Claims (2)

(57) [Scope of request for utility model registration] 1. An operator seat is provided on both left and right sides.
Of the console box with the operating lever
At the driver's seat armrest
Bracket (8) and arm standing upright on the box (4)
Armrest support leg (1) formed integrally with the rest
3) and the bracket (8) and the armless
And a plurality of stages that are preset in the vertical direction with the
Fixing part to select and fix one of the fixing positions of
Material (15a, 15b, 16a, 16b)
Characteristic driver's seat armrest. 2. A through-hole provided in the bracket (8) and one of a plurality of through-holes provided in a support leg (13) of the armrest (5) are aligned at a predetermined vertical position. Fixing members (15a, 15b, 16a, 16b) which are inserted into the aligned through holes to fix the bracket (8) and the supporting leg (13) of the armrest (5).
The driver's seat armrest according to claim 1, further comprising: