JP2002037087A - Operating device for motor car - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce weight and to facilitate assembly by simplifying the constitution of an operating device for a motor car. SOLUTION: An operating part mounting base 4 is fitted to the upper part of a steering wheel shaft 1, and a steering wheel base 5 of plate shape longitudinally wide at the center and laterally extended in loop shape is provided on the operating part mounting base 4. These bases are covered with upper and lower covers 6, 7 made of resin.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operating device for an electric vehicle such as an electric wheelchair.

[0002]

2. Description of the Related Art Conventionally, in this type of operating device for an electric vehicle, as described in Japanese Patent No. 2801605, etc., it is necessary to attach an operating box and an operating handle to an upper portion of an upright handle shaft. In general, an operation mechanism is mounted on a mounting base above the handle shaft, and an operation handle made of a pipe material is mounted on the base.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to simplify the construction of the electric vehicle operating device in the prior art as described above, to reduce the weight and to facilitate the assembly.

[0004]

In order to mount the operation box 2 and the loop-shaped operation handle 3 above the handle shaft 1 to be erected, an operation section mounting base 4 is mounted on the handle shaft 1 and the mounting base is mounted. A flat handle base 5 whose center is wide in the front-rear direction and extends in a loop shape in the left-right direction is provided on 4, and the operation unit mounting base 4 and the handle base 5 are covered with resin upper and lower covers 6 and 7 from above and below. Of the operating device for the electric vehicle. Further, an operating device for an electric vehicle is provided in which a grip 9 made of a pipe material and covered with an elastic covering 8 is detachably attached to the end of the handle base 5. Also, the handle base 5 is partially protruded forward or backward from the upper and lower covers 6 and 7 to attach an accessory part 1 such as a rearview mirror 10 or the like.
1 is configured.

[0005]

According to the first aspect of the present invention, the operating portion mounting base 4 is attached to the upper portion of the handle shaft 1, and the center of the operating portion mounting base 4 is wide in the front-rear direction and has a loop shape in the left-right direction. The operating unit is formed by providing a handle-shaped base 5 extending in a plane and covering the operating unit mounting base 4 and the handle base 5 with upper and lower covers 6 and 7 made of resin from above and below. The mounting base 4 and the handle base 5 are directly connected on a wide surface and firmly and accurately attached to the upper portion of the handle shaft 1 to accurately assemble the mutual positional relationship of the operating members mounted thereon. Further, since the handle base 5 is formed in a flat plate shape and the handle base 5 is covered from above and below with resin upper and lower covers 6 and 7, the weight can be reduced as compared with the case where the handle is formed of an iron pipe material. . Furthermore, by forming only the upper and lower covers 6 and 7 with a large diameter, a lightweight and stable operating device can be provided. According to the second aspect of the present invention, since the grips 9 made of a pipe material and covered with the elastic covering 8 are detachably provided at the ends of the handle bases 5, 5, the handle bases 5, 5, which are strength members, are provided. By connecting the grip 9 made of pipe material, which is also a strength member, the strength of the grip 9 can be sufficiently ensured, and the operation feeling can be improved by covering the grip 9 with the elastic covering 8. In addition,
It is advantageous in terms of strength if the left and right handle bases 5 and 5 are integrally connected by a single grip 9, but a particularly short grip 9 is attached to each end of the handle base 5, and the left and right grips 9 and 5 are attached. It is also possible to provide a space for operation box operation between 9. According to the third aspect of the present invention, the handle base 5 is partially protruded forward or backward from the upper and lower covers 6 and 7 to constitute the attachment portion 11 for accessory parts such as the rearview mirror 10, so that a special attachment is provided. It can be attached with sufficient strength without providing members.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The illustrated example is a four-wheel type electric wheelchair. A pair of left and right front wheels 12, 12 steerable by a handle shaft 1 is provided at a front portion of a vehicle body, and a pair of left and right driving wheels are provided at a rear portion of the vehicle body. 13 and 13 are equipped. 14 is a rear case,
Reference numeral 15 denotes a battery case, which houses a battery serving as a power supply, a motor for driving the rear wheels 13 and 13, a gear box, and the like, as in the prior art. Reference numeral 16 denotes a chair with armrests, the front side of which is configured as a step 17 for riding on a passenger. A bed light 19 is provided on the fender 18 covering the front wheels 12, 12 and the front of the fuselage, and a windshield 20 is provided on an upper portion thereof. The handle shaft 1 is made of a round pipe material. The handle shaft 1 is provided with a steering mechanism (not shown) for the front wheels 12 and 12 at a lower portion, and an operation portion mounting base 4 including a bottom plate and both side plates is welded to an upper end. The operation unit mounting base 4
The bottom plate has an opening 21 communicating with the pipe hole of the handle shaft 1.
Are provided as through holes for operation cables and the like. A handle base 5 formed by pressing a sheet metal material having a thickness of about 4.5 mm is welded to the upper surface of both side plates of the operation unit mounting base 4. The handle base 5 has its central front and rear wide portion firmly attached to the operation unit mounting base 4, sequentially narrows the front and rear width from both sides thereof, extends to the left and right sides, bends at both ends, and slightly folds the inside of the body. It has been returned.

The grip 9 is made of a pipe material and is covered with an elastic covering 8 such as a sponge material.
The bolts 23 are fixed to the mounting plates 22, 22 and the end of the handle base 5 by welding. At the rear of the operating member mounting base 4, the mounting frame 24 of the accelerator mechanism is provided as shown in FIG.
The bolts 25 are fixed by being superposed so as to be connected by the A line. The mounting frame 24 is formed on both sides 27, 27 that are bent with the bottom 26.
And a front side plate 28 bent upward from the front of the bottom plate 26
And a top plate 29 bent rearward from the upper end of the front plate 28
It is composed of Reference numerals 30 and 30 denote a pair of left and right operation shafts, which are rotatably held between the bottom plate 26 and the top plate 29 of the mounting frame 24 and have a lower part protruding downward from the bottom plate 26 by a predetermined length. 31 is a potentiometer,
The gear 32 is fixed to the top plate 29 with its output shaft protruding downward from the top plate 29. The gear 32
Is engaged with the fixed gear 33 on the left operation shaft 30,
A gear 33 for fastening to the left operation shaft 30 and a gear 34 for fastening to the right operation shaft 30 are engaged with each other. The right and left hand accelerator levers 35, 35 are fixed with screws 36. When the left and right accelerator levers 35, 35 are operated in the same direction, the potentiometer 31 can be rotated in the same direction by the same amount.

The right accelerator lever 35 is
The operation portion 37 is formed by extending upward from the lower end mounting portion toward the front in the plan view, upward from the front, then vertically upward, and furthermore, bending and extending toward the front from the plan view. And
The operation section 37 is located at substantially the same height as the handle 3 at the center position of the loop-shaped operation handle 3. This position is such that, when the operator operates the accelerator lever 35 to the front side of the maximum angle, the operation unit 37 is positioned close to the clip 9 in a parallel manner, and the operation unit 37 is moved to the opposite side, that is, in front of the fuselage. It is also a position that can be operated on the side. Also, the accelerator lever 35
Is operated by moving the fuselage forward to increase the speed by increasing the amount of rotation, and by moving the accelerator lever 35 toward the front of the fuselage to move backward and change the speed similarly. Also, it is interlocked with the potentiometer 31 so as to return to the neutral position by the action of a neutral position returning mechanism 38 described later and stop running when the hand is released. That is, the drive control device is controlled according to the output voltage at the turning position of the potentiometer 31. The left-hand accelerator lever 35 attached to the left operation shaft 30 is symmetrical to the right-hand accelerator lever 35, and all have the same configuration.

A neutral position return mechanism 28 is provided at a lower portion of the mounting frame 24 and pivotally supports L-shaped regulating plates 40, 40, which are substantially symmetrical left and right, with a pin 39 hanging down from the bottom plate 26. Then, the inner edges of the regulating plates 40, 40 in the longitudinal middle portion are fitted and contacted from the outside with the front-rear cut grooves 41, 41 formed at the corresponding positions of the left and right operation shafts 30, 30.
Further, a tension spring 42 is provided between the ends of the two regulating plates 40, 40.
, And the restriction plates 40, 40 regulate the cut grooves 41, 41 of the operation shafts 30, 30 to correctly face the front-rear direction. Therefore, the operation shaft 30 is operated by operating the accelerator lever 35.
When the vehicle is stopped, the vehicle is automatically returned to the neutral position, that is, the traveling stop position by releasing the hand at that position.

The operation box 2 is constituted by covering the above-mentioned operation section mounting base 4, the mounting frame 24 and the members mounted thereon with upper and lower covers 6, 7 made of resin. A volume dial 43 capable of setting the maximum speed steplessly, a direction indicator operation switch 44,
44, a horn switch 45, etc., and a battery remaining amount meter 46 is provided on the upright surface. A key switch 47 is provided on the back of the operation box 2. The operating shafts 30, 30 project downward from the lower surface of the lower cover 7, and at this projecting position, the accelerator lever 35 is configured to be detachable with screws 36. The upper and lower covers 6 and 7 are formed integrally with the cover of the operation box 2 and the operation handle 3 by integral molding of a resin material. The flat handle base 5 is sandwiched between the upper and lower covers 6 and 7 from above and below. It is bolted from the lower cover 7 side. Further, the front edge side of the handle base 5 projects slightly forward from the upper and lower covers 6 and 7 to provide an accent for improving the design and also serves as a mounting member for the rearview mirror 11. In addition, although the handle base 5 is formed in a flat plate shape, the bent configuration of the side edge,
The same effect can be obtained even if the reinforcement is provided by the rib projection configuration.
In the illustrated example, the edges of the upper and lower covers 6 and 7 are sandwiched on the upper and lower surfaces of the handle base 5 in a sandwich shape. The upper and lower covers 6 and 7 may be joined together.

[0011]

[Brief description of the drawings]

FIG. 1 is an overall perspective view.

FIG. 2A is a rear view of an operation unit. (B) The top view of an operation part.

FIG. 3 is a plan view of the operation unit with a cover removed.

FIG. 4 is a rear view of the operation unit with a cover removed.

FIGS. 5A and 5B are explanatory diagrams of the operation of the accelerator lever, wherein FIG. 5A shows a reverse position, FIG. 5B shows a neutral position, and FIG. 5C shows a forward position.

FIG. 6 is an exploded perspective view of an operation unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Handle axis 2 Operation box 3 Operation handle 4 Operation part mounting base 5 Handle base 6 Upper cover 7 Lower cover 8 Elastic coating 9 Grip 10 Rearview mirror 11 Mounting part

Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat II (reference) B60R 16/02 675 B60R 16/02 675T F term (reference) 3D030 DA34 DA57 DB01 DB72 3D037 EA01 EB03 EB16 EC05 3D053 FF30 GG04 HH01 5H115 PA01 PG06 SJ11 UI36

Claims (3)

[Claims] An operation box (2) and a loop-shaped operation handle (3) are mounted on an upper part of a handle shaft (1). A flat handle base (5) is provided on the mounting base (4), the center of which is wide in the front-rear direction, and is extended in a loop shape in the left-right direction. The operation unit mounting base (4) and the handle base (5) are provided. Upper and lower covers made of resin (6), (7)
Operating device for electric vehicles covered with 2. An electric vehicle operating device according to claim 1, wherein a grip (9) made of a pipe material and covered with an elastic covering (8) is detachably attached to a terminal end of the handle base (5). 3. A handle base (5) protruding partly forward or rearward from upper and lower covers (6) and (7) to attach an accessory part (1) such as a rearview mirror (10).
The operating device for an electric vehicle according to claim 1, wherein the operating device is configured as in (1).