JPH11115701A - Operation auxiliary device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure a sufficient lever manipulation in a narrow space between instrument panels. SOLUTION: An operating lever 2 actuating a brake operating part or an accelerator operating part, is erected on a floor between a driver's seat and a front passenger seat, and the arm lower half part of the operating lever 2 is composed of link plates 21, 22 extending in parallel in a vertical direction. The arm upper half part 23 of the operating lever 2 is bent in an L shape, and the front and rear ends of the lower sides thereof are connected to the upper ends of the link plates 21, 22, respectively. When the operating lever 2 is operated, the link plates 21, 22 are inclined and fall down greatly, however, the arm upper half part 23 can retain its upright attitude by the link plates 21, 22 which form a parallel link.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driving assist device for assisting a person with a physical disability in the lower limbs, and more particularly to an improvement in the structure of an operation lever portion thereof.

[0002]

2. Description of the Related Art As a driving assist device for assisting a disabled person with a disabled lower limb, as shown in FIG. 4, one operating lever 2 'is provided from a main body H provided on a floor between a driver's seat and a passenger seat. There is a type in which the brake and the accelerator are operated by extending upward and manually tilting the operation lever 2 'in the front-rear direction as shown by a chain line in the figure.

[0003]

By the way, in the above-mentioned conventional driving assist device, in order to avoid interference between the upper end of the operating lever 2 'and the instrument panel P when tilting forward, a certain gap L is secured between them. Therefore, it may not be possible to secure a sufficient forward leaning operation amount depending on the vehicle type. Therefore, in order to guarantee a sufficient brake operation with a small lever operation amount, the lever operation amount is conventionally expanded by a lever link or the like, but this causes a problem that the operation lever becomes heavy.

Accordingly, an object of the present invention is to solve such a problem, and an object of the present invention is to provide a driving assist device capable of securing a sufficient lever operation amount in a narrow space between the instrument panel. .

[0005]

In order to achieve the above object, according to the present invention, an operating lever (2) for operating a brake operating portion or an accelerator operating portion is provided upright on a floor between a driver's seat and a passenger seat. At the same time, the lower arms (21, 22) of the operating lever (2) are constituted by parallel links extending in the vertical direction, and the upper arm (23) of the operating lever (2) is provided at the upper end of the parallel link. It is characterized by being combined.

In the present invention, when the operating lever is operated forward, the lower half of the arm is tilted accordingly. However, the upper half of the arm is brought into the initial vertical position by the lower half of the arm constituting the parallel link. Move forward and downward while keeping it. That is, only the lower half of the operating lever tilts greatly to fully operate the brake operating unit and the like, while the upper half of the operating lever does not tilt, so even if the space between the instrument panel and the instrument panel is small, Sufficient brake operation and the like can be performed without causing interference. And
Since the lower half of the operating lever can be tilted significantly, connecting an operating wire or the like here will allow the lever link, etc. for expanding the operating amount to be placed on the way to the brake operating unit or the accelerator operating unit as in the past. No need to provide. Therefore,
The operating force of the operating lever is also reduced.

[0007] The reference numerals in parentheses indicate the correspondence with specific means described in the embodiments described later.

[0008]

FIG. 1 shows the appearance of a driving assistance device. In the figure, a main body H of the apparatus is provided on a floor between a driver's seat and a passenger seat (not shown). The operation lever 2 protrudes upward from the top surface of the main body portion H, while operation wires 61 and 62 extending from the front side surface and the rear side surface of the main body portion H to the brake operation portion and the accelerator operation portion, respectively.

FIG. 2 is a side view of the driving assist device. The main body H has a base body 1, and the base body 1 is fixed to a frame F provided on a floor between a driver's seat and a passenger seat with bolts 15. Covers 9A and 9B (see FIG. 1) are screwed to the base 1 from the near side and the far side of the drawing.

A shaft 31 is provided on the base body 1 in a direction perpendicular to the paper surface, and an intermediate portion of a link plate 21 constituting a lower half of the arm of the operation lever 2 is rotatably connected to the shaft 31. The link plate 21 is a long plate, and has a lower end surface 21a.
Is a concave portion whose center is curved, and the mountain-shaped curved tip portion of the leaf spring 18 provided on the bottom wall of the base body 1 is in contact with this concave portion. Thus, the link plate 21 (that is, the operation lever 2) is urged so as to be always in the upright posture when not operated. Rectangular engaging protrusions 211 and 212 are provided on the front side surface and the opposite side surface of the link plate 21, respectively. The engaging protrusion 211 is a front surface of the engaging protrusion 41 provided on the operation plate 4 (see FIG. Abutment on the left side)
Reference numeral 12 is in contact with the rear surface of the engaging projection 51 provided on the operation plate 5.

Each of the operation plates 4 and 5 has a substantially fan shape gradually widening downward, and each upper end is rotatably connected to the shaft 31. A notch 42 formed in the rear end surface of the outer peripheral portion of the operation plate 4 includes an inner wire 61 of the operation wire 61.
One end of the inner wire 621 of the operation wire 62 is locked in a notch 52 formed in the front end face of the outer peripheral portion of the operation plate 5.

A shaft 32 is provided in the base body 1 at the same height position behind and spaced from the shaft 31 in a direction perpendicular to the paper surface. The lower end of the link plate 22 is rotatably connected to the shaft 32. I have. The link plate 22 extends upward in parallel with the link plate 21 to form a parallel link.
The upper half 23 of the arm of the operating lever 2 is a long plate formed into an L-shape in a side view, and the front and rear ends of its lower side are rotatably connected to the upper ends of the link plates 21 and 22 at the same height position. Have been. A receiving piece 231 is provided at the upper end of the arm upper half 23.
Are joined, and the resin operating knob 2 is placed on the receiving piece 231.
4 is mounted and fixed.

In the driving assistance device having such a structure,
When the handicapped grasps the operation knob 24 and tilts the operation lever 2 forward (to the left in FIG. 2), the link plates 2
1 and 22 are tilted forward to rotate counterclockwise around the shafts 31 and 32. Along with this, link plate 2
The first engagement projection 211 pushes the engagement projection 41 rearward, rotates the operation plate 4 in the same direction, and pulls the inner wire 611 of the operation wire 61 to perform the brake operation. During this time, the upper arm 23 of the operation lever 2 is moved forward and downward by the front and rear link plates 21 and 22 while maintaining its vertical posture. Thereby, as shown in FIG.
Even if the link plates 21 and 22 of the operating lever 2 are tilted forward greatly to such an angle that the upper end of the conventional operating lever 2 ′ interferes with the instrument panel P (dotted line in the figure), the operation of the operating lever 2 is performed. The knob 24 does not interfere with the instrument panel P. And link plate 2
Since the levers 1 and 22 can be largely tilted, there is no need to increase the lever operation amount using a link lever or the like as in the related art, and the operation force of the operation lever 2 can be reduced.

When the operating lever 2 is tilted backward,
Each of the link plates 21 and 22 is tilted rearward so that each shaft 3
1 and 32 are rotated clockwise in FIG.
The first engagement protrusion 212 pushes the engagement protrusion 51 forward, and the inner wire 6 of the operation wire 62 via the operation plate 5.
21 is depressed to perform an accelerator operation.

[0015]

As described above, according to the driving assist device of the present invention, it is possible to secure a sufficient lever operation amount in a narrow space between the instrument panel and the driving assist device and to reduce the operating force. Can be realized.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a driving assistance device.

FIG. 2 is an overall side view of the driving assistance device.

FIG. 3 is a schematic side view of the driving assistance device.

FIG. 4 is a schematic side view of a driver seat provided with a conventional driving assist device.

[Explanation of symbols]

H: body, 1 ... base, 2 ... operation arm, 21 and 22
2. Link plate (lower half of arm), 23: Upper half of arm,
31, 32 ... shaft.

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[Procedure amendment]

[Submission date] November 5, 1997

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] Figure 3

[Correction method] Change

[Correction contents]

FIG. 3

Claims (1)

[Claims] An operating lever for operating a brake operating unit or an accelerator operating unit is provided upright on a floor between a driver's seat and a passenger seat, and a parallel link extending vertically in a lower half of an arm of the operating lever. And the upper half of the arm of the operating lever is coupled to the upper end of the parallel link.