JPS6338294Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a fixing device for fixing an operating pedal provided on civil engineering/construction machinery, etc., so that it cannot rotate.

Figure 1A and Figure 1B are explanatory diagrams of the operating pedal to which the present invention is applied, Figure 1A is a side view, Figure 1B is the first
It is a view taken in the direction of arrow A in Figure A. In these figures, reference numeral 1 denotes an operation pedal disposed in the driver's cab of a civil engineering/construction machine, for example, and is made up of a tread member 1a against which the driver's foot comes into contact, and a support member 1b that supports this tread member 1a. , can be rotated in two directions indicated by arrows. The above-mentioned support member 1b is integrally provided with a boss 4 rotatably attached to a shaft 3 forming a rotational fulcrum of the operation pedal 1. Note that the shaft 3 is fixed to a floor 5 on which the operating pedal 1 is placed, for example.
Reference numeral 6 denotes a connecting rod for actuating an operated body such as an actuator (not shown), which is movable in the direction of arrow 7 and is connected to boss 4 via lever 8 .

In the operation pedal configured in this way, when the driver steps on the end of the tread member 1a, the whole including the support member 1b and the boss 4 rotates as a unit, and at the same time, the boss 4 rotates. As the movement moves, the connecting rod 6
is pushed or pulled, thereby allowing the operated object to be actuated. By the way, in this type of operating pedal 1, when there is no need to operate the operated object, the operating pedal 1 is fixed so as not to rotate.

Figures 2 to 4 are explanatory diagrams showing conventional operation pedal fixing devices, respectively, where Figure 2A is a plan view showing the first conventional example, and Figure 2B is a side view of Figure 2A. , FIG. 3A is a plan view showing the second conventional example,
3B is a side view of FIG. 3A, FIG. 4A is a side view of the third conventional example, and FIG. 4B is a side view of the operating pedal in FIG. 4A when it is fixed. It is.

In the first example shown in Figure 2 A and B, the operating pedal 1
For example, a stepped portion 1c is formed on the supporting member 1b, and a flat plate-shaped fixing member 10 that can be engaged with the stepped portion 1c and movable in the direction of arrow 9 is provided,
This fixing member 10 is movably held by a pair of holding members 11 fixed to the floor 5. In this first example, when the operating pedal 1 is fixed, the fixing member 10 is moved in the direction of the arrow 9, as shown in FIG. Stepped portion 1c
are engaged with each other, thereby fixing the operating pedal 1 unrotatably.

In the second example shown in FIGS. 3A and 3B, a hole 1d is formed in the support member 1b of the operating pedal 1, and a rod-shaped fixing member that can be fitted into the hole 1d and movable in the direction of the arrow 12 is provided. 13, and this fixing member 13 is movably held by a holding member 14 fixed to the floor 5. In this second example, when the operating pedal 1 is fixed, the fixing member 13 is fixed as shown in FIG.
is moved in the direction of arrow 12, and the fixing member 13 is fitted into the hole 1d of the support member 1b, thereby fixing the operating pedal 1 unrotatably.

In the third example shown in FIGS. 4A and 4B, a hole 1e is formed in the support member 1b of the operating pedal 1, and an L-shaped fixing member 1 that can be fitted into the hole 1e is provided.
5, and this fixing member 15 is rotatably fixed to the floor 5. In this third example, when the operating pedal 1 is fixed, as shown in FIG.
The fixing member 15 is rotated in the direction of arrow 16 and fitted into the hole 1e of the support member 1b, thereby fixing the operating pedal 1 unrotatably.

However, the conventional operation pedal fixing device configured as described above has the following problems. That is, in common to all of the first to third examples, (1) the support member 1b and the fixing member 1 of the operating pedal 1;
0, 13, and 15 are located close to the rotational fulcrum of the operation pedal 1, so that the locking member 1b is formed between the supporting member 1b and the fixed members 10, 13, and 15. Due to the backlash caused by this, there is a large amount of play in the tread member 1a, and therefore it is difficult to tell whether or not the operating pedal 1 is securely fixed.

(2) Since the fixed members 10, 13, 15 are arranged below the tread member 1a of the operation pedal 1, the fixed members 10, 13, 15 are covered by the tread member 1a, and therefore are not in the fixed state. Difficult to confirm.

(3) Similarly to (2) above, the fixing members 10, 13,
15, these fixing members 10,
It is difficult to operate with feet 13 and 15.

(4) Since the fixing members 10, 13, and 15 are arranged close to the floor 5, and the step portion 1c and holes 1d and 1e formed in the support member 1b are close to the floor 5, the floor Mud and dirt placed on the floor 5 or rust generated on the floor 5 are likely to adhere to these steps 1c and holes 1d, 1e, and the fixing performance is likely to deteriorate.

(5) Since the fixing members 10, 13, and 15 are arranged between the driver's seat (not shown) and the operating pedal 1, they tend to get in the way when the operating pedal 1 is stepped on.

Further, as a common problem in the first example and the second example, when the operation pedal 1 is fixed, the fixing member 10,
13 must be moved in a direction different from the rotating direction of the operating pedal 1, that is, in the horizontal direction as shown by arrows 9 and 12, which complicates the driver's sense of the fixing operation of the operating pedal 1. I'm making it into something.

The present invention has been made in view of the actual state of the prior art, and its purpose is to provide a fixing device for an operating pedal that has a good arrangement with respect to the operating pedal and that can be easily fixed.

In order to achieve this object, the present invention has a structure in which a fixing member is provided opposite to the operating pedal, rotatable in the direction of the operating pedal, and engageable with the tread member of the operating pedal.

5A and 5B and 6A and 6B are explanatory diagrams showing one embodiment of the present invention, in which FIG. 5A is a side view, FIG. 5B is a plan view of FIG. 5A, and FIG. 6A is a front view showing a fixing member constituting this embodiment, and FIG. 6B is a side view of FIG. 6A. In addition, in FIGS. 5A and 5B, the same members as those described above are designated by the same reference numerals.

In FIGS. 5A and 5B, reference numeral 20 denotes a fixing member for fixing the operating pedal 1, which is formed into a rod shape as shown in FIG. A notch 21 that can be fitted,
The lower part has a hole 22. The fixing member 20 is adapted to rotate in the same direction as the rotation direction of the operating pedal 1, and is arranged to face the front edge 1f of the tread member 1a of the operating pedal 1. Reference numeral 23 designates a holding member for rotatably holding the fixing member 20, which has a substantially U-shaped cross section as shown in FIG. 5B, and is fixed to the floor 5, for example. Reference numeral 24 denotes a shaft attached to the holding member 23 so as to pass through the holding member 23, and this shaft 24 is loosely fitted into the hole 22 of the fixing member 20 described above. Note that the rotation of the fixing member 20 is restricted by coming into contact with the upper edge 23a of the holding member 23. Reference numeral 25 denotes a spring, which has one end engaged with a protrusion 26 provided on the fixing member 20 and the other end engaged with a protrusion 27 provided on the holding member 23.

In one embodiment configured in this way,
When the operation pedal 1 does not need to be fixed, the fixing member 20 is attached to the spring 2 as shown by the dashed line in FIG.
What is necessary is just to make it lock to the upper edge part 23a of the holding member 23 via the elasticity of 5. This allows the desired rotational movement of the operating pedal 1 to be performed.

If it is necessary to fix the operating pedal 1, the fixing member 20 can be rotated in the direction of the arrow 28 against the elastic force of the spring 25, as shown by the solid line in FIG. 5A. As a result, the notch 21 of the fixing member 20 and the front edge 1f of the operating pedal 1 are engaged, and the operating pedal 1 is fixed unrotatably. Such rotation of the fixing member 20 can be performed by the driver's feet. Note that the spring 25 is not necessarily essential, and the rotating movement may be performed using the weight of the rotating member 20 itself.

The fixing device configured in this way can be placed in front of the operating pedal 1, that is, without intervening anything between the driver's seat (not shown) and the operating pedal 1, and therefore, the fixing member 20 and the operating pedal It is possible to maintain a good positional relationship with the pedal 1. Further, since the fixing member 20 is adapted to be rotated in the same direction as the rotation direction of the operating pedal 1, the fixing operation can be performed very easily and smoothly.

Note that in the above embodiment, the fixing member 20 has a notch 21.
The operating pedal 1 is fixed by engaging the notch 21 with the front edge 1f of the tread member 1a of the operating pedal 1. The tread member 1a of the pedal 1 is provided with a slit into which the fixing member 20 can fit, and the fixing member 20 is provided with protrusions that restrict movement of the upper and lower surfaces of the tread member 1a, thereby fixing the operating pedal 1. You can also do this.

7 and 8 are explanatory diagrams showing other examples of the fixing member constituting the present invention, respectively. FIG. 7A is a front view showing the first example, and FIG. 7B is the same as that of FIG. 7B. A side view, FIG. 8A is a front view showing a second example, and a side view of FIG. 8A.

The fixing member 29 shown in FIGS. 7A and 7B has a flat plate 30 at its upper end on which the driver's feet can come into contact. The width dimension W of this flat plate 30 is formed to be equal to the width dimension of the operating pedal 1 described above.

Note that 31 and 32 are notches and holes equivalent to the notch 21 and hole 22 in the fixing member 20 constituting the above-described embodiment. Furthermore, the fixing member 33 shown in FIGS. 8A and 8B is constructed by bending a single plate, and is placed at a position corresponding to the flat plate 30, notch 31, and hole 32 of the fixing member 29 shown in FIG. , tread part 3
4, a recess 35 and a hole 36. The width W of this fixing member 33 is also formed to be equal to the width of the operating pedal 1.

With the fixing device equipped with the fixing members 29 and 33 shown in FIGS. 7 and 8, the surface pressure applied by the driver's shoes when fixing the operating pedal 1 can be reduced. Since the upper surface portion is wide enough for the driver's shoes to be placed thereon, the fixing members 29 and 33 can be rotated with a light feel. Furthermore, when the operating pedal 1 is fixed, the fixing members 29 and 33 are integrated with the operating pedal 1 and also serve as footrests.

Since the operating pedal fixing device of the present invention is constructed as described above, it achieves the following effects.

(1) The position where the support member of the operating pedal engages with the fixing member that fixes the operating pedal is located far from the rotational fulcrum of the operating pedal, that is, the position of the tread member of the operating pedal, compared to conventional methods. The play of this tread member can be suppressed to a minimum amount, and therefore, it is possible to reliably confirm that the operating pedal is fixed.

(2) Since the fixing member can be placed in a position that is not covered by the tread member of the operation pedal, for example, in front of the tread member, it is easy to visually confirm the fixation state, and it is also easy to operate the fixing member with the foot. In addition, it is possible to secure a sufficiently wide space between the operation pedals and the driver's seat.
Therefore, the operability of the operating pedal can be improved.

(3) Since the engagement position of the fixing member is located at the tread member position, that is, at a position away from the floor where the operation pedal is placed, it will prevent mud and dirt from being placed on the floor, or rust that may form on the floor. will not adhere to the above-mentioned engaging portion, and therefore durability will be improved.

(4) Since the direction of rotation of the fixing member can be the same as the direction of rotation of the operating pedal, the driver's sense of the fixing operation of the operating pedal can be made simple; Work can be done easily.

[Brief explanation of the drawing]

Figure 1A and Figure 1B are explanatory diagrams of the operating pedal to which the present invention is applied, Figure 1A is a side view, Figure 1B is the first
A view taken in the direction of arrow A in Fig. A, and Figs. 2 to 4 are explanatory diagrams showing conventional operation pedal fixing devices, respectively. Fig. 2 A is a plan view showing the first conventional example, and Fig. 2 B is a side view of Fig. 2A, Fig. 3A is a plan view showing the second conventional example, Fig. 3B is a side view of Fig. 3A, and Fig. 4A is a third example. A side view, FIG. 4B is a side view showing the state in which the operating pedal is fixed in FIG. 4A, and FIGS. FIG. 5A is a side view, FIG. 5B is a plan view of FIG. 5A, and FIG. , FIG. 6B is a side view of FIG. 6A, FIGS. 7 and 8 are explanatory views showing other examples of the fixing member constituting the present invention, and FIG. 7A is a side view of the first example. The front view shown in Figure 7B is
FIG. 8A is a side view, FIG. 8A is a front view showing the second example, and FIG. 8B is a side view of FIG. 8A. 1... Operation pedal, 1a... Tread member, 1b...
...Support member, 1f...front edge, 3...shaft, 4...
Boss, 5... Floor, 6... Connecting rod, 20, 29, 3
3... Fixed member, 21, 31... Notch, 22,
32, 36... hole, 23... holding member, 24...
Shaft, 23a... Upper edge, 30... Flat plate, 34...
Tread portion, 35... recessed portion.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. An operation pedal that fixes a rotatable operation pedal consisting of a tread member against which the driver's foot comes into contact and a support member that supports the tread member in a non-rotatable manner. A fixing device for an operating pedal, characterized in that the fixing device is provided with a fixing member facing the operating pedal, rotatable in the direction of the operating pedal, and engageable with a tread member of the operating pedal. 2. The operating pedal fixing device according to claim 1, wherein the fixing member has a recess into which the tread member of the operating pedal can engage. 3. The operating pedal fixing device according to claim 1, wherein the fixing member has a flat plate on the upper end of which the driver's foot can come into contact. 4. The operating pedal fixing device according to claim 1, wherein the fixing member has an upper surface having a width equal to the width of the tread member of the operating pedal.