JP2010009388A - Vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simplify assembling work in detection structure of an operation pedal, by contriving a providing method for a detecting switch of detecting an operation state of the detecting switch. <P>SOLUTION: A detector 4 equipped with the detecting switch 41 for detecting a nonactuated state is constituted to allow a positional change of the detecting switch 41 together with the operation pedal 3 along an operation direction to a returning side of the operation pedal 3 after detecting contact with the operation pedal 3, by the contact with the operation pedal 3 in the returning side opposite to an actuating side of the operation pedal 3, in this vehicle constituted to execute prescribed control in accompaniment to an actuation-directional operation of the operation pedal 3. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicle configured to execute predetermined control in accordance with an operation in a depression direction of an operation pedal.

As means for indicating the operation state of the operation pedal in the vehicle described above, the one described in [1] below has been conventionally known.
[1] A configuration in which a brake lamp is lit in a depressed state by providing a detection switch that detects whether or not the brake pedal is depressed by touching an operation arm of the brake pedal (see, for example, Patent Document 1). ).

JP 2004-256044 A (paragraph [0015], FIG. 1 and FIG. 2)

As shown in Patent Literature 1, by providing a detection switch that detects whether or not the brake pedal has been depressed by contacting the operation arm of the brake pedal, for example, although not shown, Compared to the case of adopting a structure that detects whether or not the brake operation is performed in the middle of the operation transmission mechanism to the brake device, it is possible to expect the convenience of assembly of the detection structure and the ease of adjustment operation It is advantageous.
However, in the structure described in Patent Document 1, the detection switch for detecting the return position of the brake pedal is provided on the fixing bracket on the fuselage side so that the brake pedal is in contact with the fixed striker. It is configured. For this reason, there exists a problem that the assembly | attachment precision in the attachment position of the detection switch is requested | required highly so that a predetermined braking capability can be obtained without variation in braking capability.

  An object of the present invention is to simplify the assembling work in the detection structure of the operation pedal by devising a method of providing a detection switch for detecting the operation state of the operation pedal.

[Solution 1]
The technical means of the present invention taken in order to solve the above-described problems is a vehicle configured to execute a predetermined control in accordance with an operation in the depression direction of the operation pedal, as described in claim 1.
A detection device including a detection switch for detecting a non-depressed state by contacting the operation pedal on a return side opposite to a stepping side in the operation direction of the operation pedal;
The detection device is configured to allow a position change of the detection switch together with the operation pedal along an operation direction toward a return side of the operation pedal after detecting contact with the operation pedal. To do.

[Action and effect]
As described above, in the vehicle of the present invention according to the solving means 1, the detection switch that detects the non-depressed state by contacting the operation pedal on the return side of the operation pedal detects the contact with the operation pedal. It is configured to allow a position change with the operation pedal along the operation direction to the return side of the operation pedal later.
As a result, the detection switch is provided with the original position detection function of the detection switch, and the range covered by the position detection function is expanded to some extent in the operation direction of the operation pedal. In other words, even when the detection switch detects contact with the operation pedal during operation to the return side of the operation pedal, the detection switch moves with the operation pedal to some extent, so that the detection function by the detection switch extends during that time. Thus, the range covered by the position detection function is substantially expanded.

  As a result, in the present invention, it is possible to assemble with a certain margin in accuracy without the need to assemble with increased accuracy so that the detection position of the detection switch and the operation end position on the return side of the operation pedal exactly match. Thus, there is an advantage that the operability of the assembly work can be improved.

[Solution 2]
According to a second solving means of the vehicle of the present invention, as described in claim 2, in the vehicle configured to execute the predetermined control in accordance with the operation in the depression direction of the operation pedal.
A detection device including a detection switch for detecting a non-depressed state by contacting the operation pedal on a return side opposite to a stepping side in the operation direction of the operation pedal;
The detection device allows a change in the relative position of the detection switch and the operation pedal through an elastic material that can be elastically deformed along an operation direction toward the return side of the operation pedal after detecting contact with the operation pedal. It is configured as described above.

[Action and effect]
As described above, in the vehicle of the present invention according to the solving means 2, the detection switch that detects the non-depressed state by contacting the operation pedal on the return side of the operation pedal detects the contact with the operation pedal. A change in the relative position with respect to the operation pedal is allowed through an elastic material that can be elastically deformed along the operation direction toward the return side of the operation pedal later.
As a result, the detection switch is provided with the original position detection function of the detection switch, and the range covered by the position detection function is expanded to some extent in the operation direction of the operation pedal. In other words, even when the detection switch detects contact with the operation pedal during operation to the return side of the operation pedal, the detection switch and the operation pedal move relative to each other as they are. The range covered by the position detection function is substantially expanded.

  As a result, in the present invention, it is possible to assemble with a certain margin in accuracy without the need to assemble with increased accuracy so that the detection position of the detection switch and the operation end position on the return side of the operation pedal exactly match. Thus, there is an advantage that the operability of the assembly work can be improved.

[Solution 3]
According to a third solving means of the vehicle of the present invention, as described in claim 3, the detection device according to claim 1 or 2 is interposed via an elastic material that can be elastically deformed along the stepping operation direction of the operation pedal. It is characterized in that a detection switch is attached.

[Action and effect]
As described above, the vehicle of the present invention according to the solving means 3 has the same effects as the invention according to the solving means 1 or 2.

[Solution 4]
According to a fourth solution of the vehicle of the present invention, as described in claim 4, the detection device according to claim 2 or 3 is interposed via an elastic material that can be elastically deformed along the stepping operation direction of the operation pedal. It is characterized in that it is configured to press the detection switch.

[Action and effect]
The vehicle of the present invention according to the solving means 4 configured as described above has the same operational effects as the invention according to the solving means 1 or 2.

[Solution 5]
According to a fifth solution of the vehicle of the present invention, as described in claim 5, the detection device according to any one of claims 2 to 4 is configured to bend and invert an intermediate portion of the series of leaf spring materials. And an elastic material formed with a pair of spring plate pieces facing each other at a predetermined interval on both sides of the bent portion, and a detection switch is attached to one spring plate piece portion, and an operation pedal is attached to the other spring plate piece portion. There is a feature in that a switch operation unit for pressing the detection switch in accordance with the operation in the return direction is provided.

[Action and effect]
The vehicle of the present invention according to the solving means 5 configured as described above exhibits the following effects in addition to the same effects as the invention according to the solving means 2 to 4.
That is, the entire structure of the detection switch mounting portion and the switch operation portion that presses the detection switch by the return direction operation of the operation pedal are composed of a series of leaf spring materials bent and reversed at the intermediate portion. The structure can be simply configured by simply using a leaf spring material.

[Solution 6]
According to a sixth solving means of the vehicle of the present invention, as described in claim 6, the detection device according to any one of claims 2 to 5 is provided on the return side of the operation pedal when the operation pedal is not operated. It is characterized in that a block-shaped stopper capable of volume elastic deformation that contacts and positions is provided, and a detection switch is integrally provided on the block-shaped stopper.

[Action and effect]
The vehicle of the present invention according to the solving means 6 configured as described above exhibits the following effects in addition to the same effects as the invention according to the solving means 2 to 5.
That is, since the detection switch is provided integrally with the block-shaped stopper that is positioned in contact with the return side of the operation pedal, the structure can be simplified by using the stopper also as the detection switch mounting means. Is. In addition, the relative positional relationship between the stopper and the detection switch can be properly determined and assembled, and the detection device can be easily assembled including the attachment with the stopper. There is.

[Overall configuration of vehicle]
FIG. 1 shows a side view of a tractor as an example of the vehicle of the present invention, and FIG. 2 shows a plan view thereof.
This tractor has a structure including a three-point link mechanism 13 for connecting a working device that is lifted and lowered by hydraulic drive at the rear of a four-wheel drive type traveling machine body 1 including a front wheel 11 and a rear wheel 12. The body frame 10 of the body 1 is configured by connecting an engine 14, a main clutch housing 15, a sheet metal housing frame 16, a hydraulic continuously variable transmission (HST) 17, a transmission case 18, and a differential case 19 in series. ing.

  The hydraulic continuously variable transmission 17 functions as a main transmission of the traveling system, and a variable capacity pump (not shown) driven by engine power and a constant capacity (not shown) driven by pressure oil from the pump. 2. Description of the Related Art A well-known structure is used in which a case body with a mold motor and a port block provided with a hydraulic circuit are connected back and forth. By changing the swash plate angle of the variable displacement pump to forward and reverse to change the discharge direction and discharge amount of pressure oil, the rotation direction of the motor output is switched to forward and reverse and the rotation speed is changed steplessly. Thus, it is possible to perform zero speed start and stepless forward / reverse switching speed. Although not shown, the transmission case 18 includes a traveling-type sub gear transmission and a PTO-type transmission mechanism.

In the driving unit 2 of the traveling machine body 1, a shift pedal 22 for shifting the hydraulic continuously variable transmission 17 and a left and right rear wheel 2 are disposed at a position corresponding to the right side of the feet of a driver sitting on the cockpit 21. A pair of left and right side brake pedals 3 that perform braking operation independently are provided, and a main clutch pedal 23 is provided on the left side of the foot.
The pair of left and right side brake pedals 3 and the main clutch pedal 23 are provided with a swing support shaft 30 on the lower side of the step floor 20 and are configured to be swingable. An opening formed in the front portion of the step floor 20 The tread surfaces 3a and 23a are exposed from 20a.

[Operating pedal detection device]
In the tractor having the above structure, the side brake pedal 3 or the main clutch pedal 23 constitutes the operation pedal in the present invention. Hereinafter, in the present embodiment, the side brake pedal 3 is used as the operation pedal. This will be described as an example.

As shown in FIGS. 2 to 4, the side brake pedal 3 includes a right side brake pedal 31 for operating a right side brake (not shown), and a left side brake pedal 32 for operating a left side brake (not shown). It is composed of a combination of When the tractor travels on the road, the right side brake pedal 31 and the left side brake pedal 32 are integrally connected by the engagement piece 33, and the aircraft body is depressed by simultaneous depression of the right side brake pedal 31 and the left side brake pedal 32. The left and right braking force is applied to the right and left.
When the stepping operation on the right side brake pedal 31 and the left side brake pedal 32 is released, the right side brake pedal 31 and the left side brake are biased by the return biasing force of the right side brake and the left side brake biased toward the brake release side. The left side brake pedal 32 is oscillated and biased so as to oscillate around the oscillating support shaft 30 and return to the return side.

  In the side brake 3, the arm portions 31b and 32b of the right side brake pedal 31 and the left side brake pedal 32 are brought into contact with a block-like stopper 40 attached to the back side of the step floor 20 and returned. The limit position to the side is defined. The block-like stopper 40 is made of a rubber material, and is configured to be capable of volumetric elastic deformation so as to reduce the impact caused by the collision with the arm portions 31b and 32b.

  The block-shaped stopper 40 also serves as the detection device 4 of the present invention. The detection device 4 is pressed by contact with the block-shaped stopper 40, the detection switch 41, and the operation pedal 3. It is comprised from the leaf | plate spring material 42 as an elastic material to receive.

The block-like stopper 40 serves as an attaching means for attaching the entire detection device 4 to the back side of the step floor 20, and the detection switch 41 is attached to the step floor 20 via the leaf spring material 42. It also plays a role of fixing.
That is, the block-like stopper 40 is directly attached to the back side of the step floor 20, but the detection switch 41 is attached to the leaf spring material 42 supported by the block-like stopper 40, and from the back side of the step floor 20. It is supported in a separated state.

  As shown in FIGS. 4 and 5, the detection switch 41 is provided by urging a push button 41a as a detection body toward the protruding side, and the left side brake pedal 32 is depressed when the push button 41a is protruding. It is arranged in association with the operation area of the left side brake pedal 32 so that the return to the return side of the left side brake pedal 32 is detected when the push button 41a is pushed in. It is.

A detection signal from the detection switch 41 is input to a control device (not shown) and controlled so that a brake lamp (not shown) is turned on or off in response to a command from the control device. In this case, when it is detected that the left side brake pedal 32 is being depressed, the brake lamp at the rear of the traveling body is turned on, and when the return of the left side brake pedal 32 to the return side is detected. The brake lamp is controlled to be turned off.
The detection switch 41 is not provided to directly detect the operation of the right side brake pedal 31, but is used while being connected to the left side brake pedal 32 and the right side brake pedal 31 when traveling on the road. Therefore, the detection switch 41 can grasp the operation state regardless of which step is depressed.

  As shown in FIGS. 4 and 5, the leaf spring material 42 is formed in a state in which a belt-shaped spring steel material is bent and inverted at the intermediate portion 42a in the longitudinal direction, and the bent and inverted intermediate portion 42a is used as a boundary. The block-shaped stopper 40 and the detection switch 41 are attached to the spring plate piece portion 42b on one side. The other spring plate piece portion 42c opposed to the one spring plate piece portion 42b with a predetermined distance is formed in a flat plate shape, and the back side thereof is the left side brake pedal. The switch operation unit 43 is configured to push the push button 41a of the detection switch 41 as the terminal 32 touches.

The detection device 4 configured in this way is operated as shown in the operation explanatory diagram of FIG.
That is, the state shown in FIG. 5A is a state in which the left side brake pedal 32 is operated to the depression side, and in this state, the switch operating portion of the leaf spring material 42 (the spring plate piece portion on the other side). 42c) is away from the push button 41a of the detection switch 41, the detection signal from the detection switch 41 is a brake lamp turn-off command signal.
From this state, when the left side brake pedal 32 is operated to the return side as shown in FIG. 5B, the switch operating portion 43 of the leaf spring material 42 (the spring leaf piece portion 42c on the other side) is illustrated. The push button 41a of the detection switch 41 is pushed in while being deformed as described above, and the detection signal from the detection switch 41 becomes a brake lamp lighting command signal.

At this time, the detection switch 41 is supported by the block stopper 40 via the leaf spring material 42 with a gap s between the detection switch 41 and the floor step 20. The following movement occurs between them.
That is, even after the left side brake pedal 32 moves to the return side and pushes the push button 41a of the detection switch 41, the left side brake pedal 32 is left until the movement to the return side is completely stopped by the block stopper 40. The side brake pedal 32 still moves to the return side. At this time, the switch operating portion 43 (the other side spring plate piece portion 42c) of the plate spring material 42 is moved to the one side spring plate piece portion 42b. If it is deformed more, the detection switch 41 and the left side brake pedal 32 are slightly moved relative to each other in the operation direction of the left side brake pedal 32.
On the contrary, if the one side spring plate piece portion 42b is deformed more than the switch operating portion 43 (the other side spring plate piece portion 42c) of the plate spring material 42, the detection switch 41 and the left side brake pedal 32 In the operation direction of the left side brake pedal 32, a slight movement in the same direction occurs.

[Another embodiment 1]
FIG. 6 shows another embodiment of the detection device 4. In this example, the detection device 4 includes a detection switch 41 and a strip-shaped leaf spring material 42 that attaches the detection switch 41 to the step floor 20. It is configured. Both the block-shaped stopper 40 and the detection switch 41 are arranged at positions where they directly contact the left side brake pedal 32. The block-shaped stopper 40 does not function as the detection device 4 and can be simply elastically deformed. It functions as a proper stopper.
In this case, after the push button 41a is pushed in, the detection switch 41 moves to the same return side by contact with the left side brake pedal 32.

[Second embodiment]
FIG. 7 shows still another embodiment of the detection device 4. In this example, the detection device 4 is attached to the left side brake pedal 32 so as to push and operate the detection switch 41 and the detection switch 41. It is comprised with the strip | belt-plate-shaped leaf | plate spring material 42. FIG.
In this case, since the detection switch 41 is fixed to the step floor 20, after the push button 41a is pushed in, the leaf spring material 42 is bent and deformed by contact with the left side brake pedal 32, and the detection switch 41 and the left The side brake pedal 32 moves in the opposite direction.

[3 of another embodiment]
FIG. 8 shows still another embodiment of the detection device 4, and in this example, the switch operating portion 43 of the leaf spring material 42 of the detection device 4 includes both the right side brake pedal 31 and the left side brake pedal 32. The detection switch 41 is configured so that the push button 41a is operated by the movement of the right side brake pedal 31 and the left side brake pedal 32 toward the return side of either pedal. There are other points as in the above-described best embodiment.

[4 of another embodiment]
The operation pedal targeted by the present invention is not limited to the side brake pedal 3 as shown in the best embodiment, and any pedal that requires some display or control, such as a clutch pedal or a shift pedal, is targeted. be able to.
When the clutch pedal is targeted, for example, it may be detected that the clutch is in an engaged state, and control for suppressing engine start may be performed.

Right side view of tractor Top view of tractor Side view showing the operating system of the brake pedal Front view showing the operating system of the brake pedal Explanatory drawing which shows the operating state of a detection apparatus Operation explanatory diagram showing another embodiment of the detection device Operation explanatory diagram showing another embodiment of the detection device Operation explanatory diagram showing another embodiment of the detection device

Explanation of symbols

3 Operation pedal (side brake pedal)
4 detection device 20 step floor 40 block-like stopper 41 detection switch 41a push button 42 leaf spring material 42a intermediate portion 42b one spring plate piece portion 42c other spring plate piece portion 43 switch operation portion

Claims (6)

In a vehicle configured to execute a predetermined control in accordance with an operation in the depression direction of the operation pedal,
A detection device including a detection switch for detecting a non-depressed state by contacting the operation pedal on a return side opposite to a stepping side in the operation direction of the operation pedal;
The detection device is configured to allow a position change of the detection switch together with the operation pedal along an operation direction toward a return side of the operation pedal after detecting contact with the operation pedal. Vehicle. In a vehicle configured to execute a predetermined control in accordance with an operation in the depression direction of the operation pedal,
A detection device including a detection switch for detecting a non-depressed state by contacting the operation pedal on a return side opposite to a stepping side in the operation direction of the operation pedal;
The detection device allows a change in the relative position of the detection switch and the operation pedal through an elastic material that can be elastically deformed along an operation direction toward the return side of the operation pedal after detecting contact with the operation pedal. A vehicle characterized by being configured as described above.   The vehicle according to claim 1 or 2, wherein the detection device is provided with a detection switch via an elastic material that can be elastically deformed along a depressing operation direction of the operation pedal.   The vehicle according to claim 2 or 3, wherein the detection device is configured to press the detection switch via an elastic material that can be elastically deformed along a stepping operation direction of the operation pedal. The detection device includes an elastic material in which a middle part of a series of leaf spring materials is bent and reversed, and a pair of spring plate pieces facing each other at a predetermined interval on both sides of the bent portion,
The detection switch is attached to one spring plate piece portion, and the switch operation portion for pressing the detection switch in accordance with the operation in the return direction of the operation pedal is provided on the other spring plate piece portion. The vehicle according to any one of the above.   The detection device includes a block-shaped stopper capable of volume elastic deformation that contacts and positions the return side of the operation pedal when the operation pedal is not operated, and a detection switch is integrally provided on the block-shaped stopper. The vehicle according to any one of 2 to 5.

Images