JP4201493B2 - Accelerator lever device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is applied to, for example, reach-type forklifts and the like, and more particularly to improvement of an accelerator lever device provided on an operation panel of a driver's seat.
[0002]
[Prior art]
Conventionally, as this type of accelerator lever device, for example, one described in JP-A-11-208305 is known.
The accelerator lever device basically includes an accelerator unit, an accelerator lever that is provided on the accelerator unit and that can be tilted back and forth, and an accelerator stopper that is provided on the accelerator unit and restricts the tilting of the accelerator lever back and forth. Yes.
By the way, on the operation panel of the driver's seat in a reach-type forklift, in addition to an accelerator lever that controls forward / backward movement, there are three types of cargo handling levers (valve levers) that perform reach, lift, and tilt operations. Has been.
Although the accelerator lever is operated by hand in principle, when it becomes a veteran, it is often operated simultaneously using the arm and elbow on the hand side that is operating the cargo handling lever.
In this case, the accelerator opening depending on the accelerator lever is an important factor more than operating by hand, and the difference in feeling, such as too much tilting or too little, differs depending on the operator. It was necessary to change the tilt angle.
[0003]
[Problems to be solved by the invention]
However, in such a case, the tilt angle of the accelerator lever cannot be changed unless the accelerator unit provided with the accelerator stopper is changed, and as a result, the accelerator opening cannot be changed.
The present invention has been devised in view of the problems described above, and a problem to be solved by the present invention is that the accelerator opening can be easily changed according to the operation mode of the operator. To provide a lever device.
[0004]
[Means for Solving the Problems]
The accelerator lever device of the present invention basically includes an accelerator unit, an accelerator lever that is provided on the accelerator unit and can be tilted forward and backward, and an accelerator stopper that is provided on the accelerator unit and controls front and rear tilting of the accelerator lever. A feature resides in that the cap is fitted to at least one of the accelerator lever and the accelerator stopper to change the degree of engagement thereof.
[0005]
When the accelerator lever is tilted forward from an upright neutral position, forward control is performed by the accelerator unit. When the forward tilt of the accelerator lever is maximized, a part of the accelerator lever is brought into contact with the accelerator stopper via the cap, and further forward tilt is restricted.
When the accelerator lever is tilted backward from the upright neutral position, the reverse control is performed by the accelerator unit. When the rearward tilt of the accelerator lever is maximized, a part of the accelerator lever is brought into contact with the accelerator stopper via the cap, and further rearward tilting is restricted.
Since at least one of the accelerator lever and the accelerator stopper is fitted with a cap that changes the degree of engagement, the tilt angle of the accelerator lever can be changed, and as a result, the accelerator opening can be changed. it can.
[0006]
The cap is preferably fitted on the accelerator lever. In this way, it is possible to change both the forward tilt angle and the rear tilt angle of the accelerator lever only by fitting one cap on the accelerator lever.
[0007]
The cap is preferably fitted on the accelerator stopper. In this way, when two caps are fitted on the front and rear accelerator stoppers, both the forward and backward tilt angles of the accelerator lever can be changed, and one cap can be moved forward or backward. When it is fitted on the accelerator stopper, only one of the forward tilt angle and the rear tilt angle of the accelerator lever can be changed.
[0008]
The cap preferably has a circular outer surface concentric with the inner surface. In this way, since the engagement distance is constant even if the cap is rotated around the axis, the cap can be fitted regardless of its orientation.
[0009]
It is preferable that the outer surface of the cap is elliptical. In this way, since the engagement distance is changed by rotating the cap around the shaft, the degree of engagement between the accelerator lever and the accelerator stopper can be changed steplessly by using a single cap.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a side view showing an accelerator lever device according to a first example of the present invention. FIG. 2 is a front view of FIG. FIG. 3 is a perspective view showing a shape of a cap. FIG. 4 is a perspective view showing another shape of the cap.
[0011]
The accelerator lever device 1 is composed mainly of an accelerator unit 2, an accelerator lever 3, an accelerator stopper 4, and a cap 5, and is applied to a reach-type forklift.
[0012]
The accelerator unit 2 is a basic part of the accelerator lever device 1, and in this example, a stepped disk-like body 6 and a shaft 7 rotatably provided around the horizontal axis at the center thereof, A potentiometer 8 attached to the large-diameter portion of the body 6 and whose rotation shaft is connected to the shaft 7; a return spring 9 which is externally mounted on the small-diameter portion of the body 6 and urges the accelerator lever 3 to a vertical neutral position at all times; The pin 10 is provided on the body 6 and engages one end of the return spring 9, and the pin 11 is provided on the accelerator lever 3 and engages the other end of the return spring 9.
[0013]
The accelerator lever 3 is provided on the accelerator unit 2 and can be tilted back and forth. In this example, the lower part is attached to the shaft 7 of the accelerator unit 2 and the upper half is a slit of the operation panel (none of which is shown). A cylindrical lever 12 that is inserted into the upper part of the arm 12, an arcuate cover 13 that is fitted in the middle of the lever 12 and blinds a part of the slit, and a knob 14 that is detachably attached to the upper part. It is made up.
[0014]
The accelerator stopper 4 is provided on the accelerator unit 2 before and after restricting the forward / backward tilt of the accelerator lever 3. In this example, the accelerator stopper 4 is attached to both sides of the body 6 of the accelerator unit 2 and the lower part of the accelerator lever 3 is engaged. It is a pair of front and rear that has a horizontal columnar shape.
[0015]
Thus, although not shown, the accelerator stopper 4 is mounted to be movable in the front-rear direction (left-right direction in FIG. 1) with respect to the mounting plate of the operation panel by a fastener. The fastener includes a screw hole that is screwed into each accelerator stopper 4, a bolt that is inserted through the long hole of the mounting plate and screwed into the screw hole, and a washer that is inserted through the bolt.
[0016]
The cap 5 is fitted on at least one of the accelerator lever 3 and the accelerator stopper 4 to change the degree of engagement thereof. In this example, the cap 5 is detachably fitted to the lower part of the lever 12 of the accelerator lever 3. Thus, it has a so-called cylindrical shape having a circular inner surface (inner hole) 15 and a concentric outer surface 16 therewith.
The cap 5 is made of synthetic resin, synthetic rubber, or the like, and is detachably fitted to the accelerator lever 3, and after being fitted, the cap 5 cannot be easily detached and rotated about its axis. A plurality of different outer diameters D can be prepared and exchanged.
[0017]
Next, the operation will be described based on such a configuration.
As shown by the solid line in FIG. 1, the accelerator lever 3 is always kept in an upright neutral position by the return spring 8 of the accelerator unit 2.
When the accelerator lever 3 is tilted forward from such a neutral position, the shaft 7 of the accelerator unit 2 is rotated counterclockwise in FIG. 1, and the resistance value of the potentiometer 8 connected thereto is varied. The forward movement is controlled depending on the situation. As shown by the chain line in FIG. 1, when the forward tilt of the accelerator lever 3 is maximized, the cap 5 fitted to the lower portion of the lever 12 of the accelerator lever 3 is brought into contact with the rear accelerator stopper 4 and further forward. Tilt is regulated.
[0018]
Conversely, when the accelerator lever 3 is tilted backward from the neutral position, the shaft 7 of the accelerator unit 2 is rotated in the clockwise direction in FIG. 1 and the resistance value of the potentiometer 8 connected thereto is varied. It is controlled backwards depending on. As shown by the chain line in FIG. 1, when the rearward tilt of the accelerator lever 3 is maximized, the cap 5 fitted on the lower portion of the lever 12 of the accelerator lever 3 is brought into contact with the front accelerator stopper 4 and further tilted backward. Is regulated.
[0019]
The cap 5 is fitted on the lower part of the lever 12 of the accelerator lever 3 and is appropriately replaced with one having a different outer diameter D. For this reason, the degree of engagement between the lever 12 of the accelerator lever 3 and the accelerator stopper 4 is changed, and the tilt angle (forward or backward tilt) angle θ of the accelerator lever 3 can be changed. As a result, the accelerator opening can be easily changed according to the operation mode of the operator.
When the cap 5 is made of an elastic body such as a synthetic rubber, the engagement with the accelerator stopper 4 is performed softly and the impact force can be reduced.
[0020]
Next, a second example of the present invention will be described with reference to FIG.
The second example is different from the first example in that the cap 5 is fitted on the accelerator stopper 4, and the others are the same as the first example.
That is, in the second example, the front and rear accelerator stoppers 4 are fitted with caps 5 whose outer surface 16 is concentric with the inner surface 15. In this way, both the forward tilt angle θ and the rear tilt angle θ of the accelerator lever 3 can be changed.
Further, when the caps 5 having different outer diameters D are fitted to the front and rear accelerator stoppers 4 or only one of the accelerator stoppers 4 is fitted, the forward tilt angle θ of the accelerator lever 3 and the rear Only one of the inclination angles θ can be changed.
[0021]
Next, a third example of the present invention will be described with reference to FIG.
The third example is different from the first example in that the outer surface 16 of the cap 5 is formed in an oval shape, and the other is the same as the first example.
In this way, since the engagement distance changes depending on the rotation of the cap 5 around the axis of the lever 12 of the accelerator lever 3 or the accelerator stopper 4, the accelerator lever 3 and the accelerator stopper depend on the single cap 5. The degree of match of 4 can be changed steplessly.
[0022]
In addition, although the cap 5 was provided in the accelerator lever 3 or the accelerator stopper 4 in the previous example, it is not restricted to this, For example, you may provide in both the accelerator lever 3 and the accelerator stopper 4. FIG.
In the previous example, the inner surface 15 of the cap 5 has a circular shape. However, the cap 5 is not limited thereto, and may have a square shape, a spline shape, or the like corresponding to the shape of the lever 12 of the accelerator lever 3 or the accelerator stopper 4. .
[0023]
【The invention's effect】
As described above, according to the present invention, the following excellent effects can be obtained.
(1) It is composed of an accelerator unit, an accelerator lever, an accelerator stopper, and a cap, and in particular, a cap that is fitted on at least one of the accelerator lever and the accelerator stopper to change the degree of engagement is provided. The accelerator opening can be easily changed according to the form.
(2) Since only a cap is provided, it can be easily applied to existing ones, and the cost is not excessive.
[Brief description of the drawings]
FIG. 1 is a side view showing an accelerator lever device according to a first example of the present invention.
FIG. 2 is a front view of FIG.
FIG. 3 is a perspective view showing a shape of a cap.
FIG. 4 is a side view showing an accelerator lever device according to a second example of the present invention.
FIG. 5 is a perspective view showing a shape of a cap according to a third example of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Accelerator lever apparatus, 2 ... Accelerator unit, 3 ... Accelerator lever, 4 ... Accelerator stopper, 5 ... Cap, 6 ... Body, 7 ... Shaft, 8 ... Potentiometer, 9 ... Return spring, 10, 11 ... Pin, 12 ... Lever, 13 ... cover, 14 ... knob, 15 ... inner surface, 16 ... outer surface, [theta] ... tilt angle.

Claims (5)

At least one of the accelerator unit, an accelerator lever that is provided on the accelerator unit and can be tilted forward and backward, an accelerator stopper that is provided on the accelerator unit and restricts forward and backward tilting of the accelerator lever, and an accelerator lever and an accelerator stopper An accelerator lever device comprising: a cap that is fitted to change the degree of engagement of the cap , wherein the cap has an oval outer surface . At least one of the accelerator unit, an accelerator lever that is provided on the accelerator unit and can be tilted forward and backward, an accelerator stopper that is provided on the accelerator unit and restricts forward and backward tilting of the accelerator lever, and an accelerator lever and an accelerator stopper are the fitted constructed from a cap to change the person if the degree of these, said cap, accelerator lever and wherein the inner surface and outer surface are eccentric circular. At least one of the accelerator unit, an accelerator lever provided on the accelerator unit that can be tilted forward and backward, an accelerator stopper that is provided on the accelerator unit and restricts forward and backward tilting of the accelerator lever, and at least one of the accelerator lever and the accelerator stopper An accelerator lever device comprising: a cap that is fitted to change the degree of engagement thereof, wherein the cap has a stepped cylindrical shape and has two different outer diameters . At least one of the accelerator unit, an accelerator lever provided on the accelerator unit that can be tilted forward and backward, an accelerator stopper that is provided on the accelerator unit and restricts forward and backward tilting of the accelerator lever, and at least one of the accelerator lever and the accelerator stopper An accelerator lever device comprising: a cap that is fitted to change the degree of engagement of the cap, wherein the cap has an oval outer surface . At least one of the accelerator unit, an accelerator lever provided on the accelerator unit that can be tilted forward and backward, an accelerator stopper that is provided on the accelerator unit and restricts forward and backward tilting of the accelerator lever, and at least one of the accelerator lever and the accelerator stopper An accelerator lever device comprising: a cap that is fitted to change the degree of engagement of the cap, wherein the cap has an egg-shaped outer surface .

Images