JP2003039967A - High speed stage-restricting device for carrier vehicle usable for both riding and walking - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a high speed stage-restricting device for a carrier vehicle usable for both the riding and walking, releasing a high-speed gear by the setting of handle rods to a walking work position, and preventing a changeover to the high-speed gear. SOLUTION: The carrier vehicle has a handle shaft 11 erected on a vehicle body frame, and the handle rods 6 extending to both right and left sides of the handle shaft 11. In riding operation, an operator operates the handle rods 6 from an operation seat. In walking operation, the operator turns and puts down the handle rods 6 forward, and operates the handle rods 6 with walking. The handle rods 6 and a change lever 7 of a transmission are connected by a wire 13. When turning the handle rods 6, the movement is transmitted to the change lever 7 by the wire 13, the setting of high-speed operation of the change lever 7 is changed over to low-speed operation or neutral, and a high speed stage of the transmission is closed to prevent the changeover to the high- speed gear.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high speed control device for a passenger and walking carrier.

[0002]

2. Description of the Related Art Conventionally, in an agricultural transport vehicle for both riding and walking, an operator operates a steering wheel and various operating levers while operating from a driver's seat when riding and running the vehicle at low speed while walking. I am doing it. And in such a working vehicle for both riding and walking, when walking and riding,
Since the handle rods are operated from different directions, the handle rods can be switched.

[0003]

In such a passenger / walking transport vehicle, when shifting to walking work, the vehicle must be switched to low speed traveling and get off, and the vehicle is traveling at high speed. It is dangerous to get off at the wrong place. In addition, it is dangerous to accidentally switch the vehicle to high-speed driving during walking work. The present invention has been made to solve the above conventional problems, and an object of the present invention is to set a handle rod at a walking work position to release a high speed gear and further switch to a high speed gear. To prevent
An object is to provide a high-speed stage regulation device for a walking and carrying vehicle.

[0004]

According to a first aspect of the present invention, there is provided a high speed stage regulating device for a vehicle for combined use and walking as a means for achieving the above object. It has a handle bar that extends on both the left and right sides of the
In walking vehicles, the handlebar is rotated and tilted forward to operate the handlebar while the operator walks.In a transport vehicle, the handlebar is connected to the transmission and the handlebar is rotated forward to move. Is transmitted to the transmission, and the setting of high speed operation is switched to low speed or neutral.

According to a second aspect of the present invention, there is provided a high speed gear restricting device for a passenger / walking carrier according to the first aspect of the present invention. When connected and the handle rod is rotated, the movement is transmitted to the change lever by the wire, and the high speed operation setting of the change lever is switched to low speed or neutral. The step is closed.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. Fig. 1 is a plan view of a passenger / walking carrier to which a high speed regulation device is applied, Fig. 2 is a side view of the passenger / walking carrier, and Fig. 3 is a front view of the passenger / walking carrier.
4 is a side view of the handle portion, FIG. 5 is a plan side explanatory view of the change lever switching portion, FIG. 6 is a front side explanatory view of the change lever switching portion, and FIG. 7 is a side explanatory view of the change lever switching portion. is there. A high-speed step regulation device for a passenger / walking carrier according to the present invention is a self-propelled agricultural carrier 1 shown in FIGS.
It is equipped with a high speed control device. The carrier 1
Is equipped with an engine, is equipped with wheels 2 at the front and rear, is equipped with a control unit 3 at the front of the vehicle, and is provided with a luggage carrier 4 at the rear. A driver's seat 5, a handle bar 6, a change lever 7, an operation lever 8, an accelerator 9, a clutch 10 and the like are arranged in the control section 3.

The driver's seat 5 is installed so as to be exposed to the outside, has no partition from the outside, and is configured to be easy to get on and off. When riding, the steering wheel rod 6 in front of the driver's seat 5,
The accelerator 9, clutch 10, change lever 7, etc. are operated. At the center of the front of the driver's seat 5, a steering wheel shaft 11 for directional steering is erected, and a steering wheel rod 6 extends from the upper portion of the steering shaft 11 to the left and right. The handle rod 6 extends obliquely upward from the handle shaft 11, and the tip of the handle rod 6 is bent to form a grip portion. As shown in FIG. 4, the fixed portion of the handle rod 6 and the handle shaft 11 is configured to be rotatable, and the handle rod can be pivoted forward and tilted. Further, the handle rod 6 is integrally formed on the left and right, and when the right or left handle rod is tilted forward, the other handle rod is also pivoted forward in conjunction with it. A lock pin 12 is projectingly provided on the handle shaft 11, the handle rod 6 is fixed by the lock pin 12, and by pulling the lock pin 12,
The lock of the handle rod 6 and the handle shaft 11 is released, and the handle rod can be rotated forward. In addition, the head of the handle shaft 11 has an operation lever 8 that is operated during walking.
Are arranged.

A wire 13 is connected to a rotating portion of the handle rod 6, and when the handle rod 6 is rotated forward, the wire 13 is pulled while being wound. The wire 13 is covered with a pipe, passes from the handle shaft 11 through the vehicle body frame, and reaches the switching portion 13a of the change lever on the side of the driver's seat. The tip of the wire is connected to the plate 14 shown in FIGS. 5 to 7, and when the wire 13 is pulled, one end of the plate 14 is pulled and the link 15 engaged with the plate is moved.

The change lever switching portion 13a is formed in an H shape as shown in FIG. 5, and the change lever 7 is moved along the groove of the H shape to change the speed. Then, at the corners of the H-shaped groove, the first speed, the second speed, and the third speed are provided.
Speed and R1 speed (reverse) are set, and the center part, which is off the corner, is set to neutral. In FIG. 5, the link 15 appears in the third speed groove to close the groove and prevent the change lever from entering the third speed. The link 15 is composed of a member formed by bending a metal plate into a Z-shape (see FIG. 6), is rotatably supported by a shaft 16, and rotates back and forth in conjunction with the movement of the wire 13. There is. Link 1
A plate 14 is installed on the side of the plate 5, one end of the plate 14 engages with the link 15, and the other end of the plate 14 is connected to the wire 13. When the wire 13 is pulled, the plate 14 is pulled and the plate 14 is pulled.
The head of the link 15 rotates forward in conjunction with.

After the head of the link 15 is engaged with the base of the change lever 7 and the head of the link 15 rotates forward, the change lever 7 is pushed out from the third speed to neutral, and after pushing out the change lever. Blocks the 3rd speed groove to prevent the change lever from entering 3rd speed. When the handle rod 6 is pivoted back to the riding position, the wire 13 relaxes and the coil spring 17 (see FIG. 7) causes the link 1 to move.
The lower end of the fifth gear is pulled, the head of the link 15 is retracted inward, and the closed state of the third speed is released, so that it is possible to switch to the third speed. As described above, the high-speed step regulation device for a passenger / walking carrier according to the present embodiment is configured to have the handle rod 6, the wire 13, the link 15, and the change lever switching portion 13a, and is used for turning the handle rod. In conjunction with this, the change lever is switched from high speed, and after switching, the high speed gear groove is closed.

Next, the operation of the high speed stage regulating device for a passenger / walking vehicle will be described. At the time of getting on the vehicle, the driver operates the driver's seat 5 by grasping the handle bar 6 and operating the accelerator 9, the clutch 10, the change lever 7, and the like. In this state, since the link 15 head is hidden, the change lever 7 can be switched to the third speed. When switching to walking operation, the lock pin 12 of the handle shaft 11 is pulled and the handle rod 6 is rotated forward. As the handle rod rotates, the wire 13 is pulled, and the wire 13 acts on the link 15 to push the head of the link 15 into the third speed groove. Here, when the change lever is in the third speed, the third lever is pushed out to the neutral and the high speed operation state is released. After the high-speed operation state is released, the link 15 head closes the groove of the third speed, so the change lever does not enter the third speed, and there is no possibility of accidentally increasing the speed. When the handle rod 6 is rotated to be in a boarding operation state, the wire 13 is relaxed, and accordingly, the link 15 is pulled by the coil spring 17, so that the link 15 is hidden and switching to high speed is possible.

Although the embodiment of the present invention has been described above, the specific configuration of the present invention is not limited to this embodiment, and there are design changes and the like within the scope not departing from the gist of the invention. However, it is included in the present invention. In the above-mentioned embodiment, the handle rod and the plate are connected by the wire, but the present invention includes the case where they are connected by a shuttle, rod or the like other than the wire. Further, in the above-mentioned embodiment, the wire pulls the plate, but the same effect can be obtained even if the wire pulls the link. Further, in the above embodiment, the change lever is switched to neutral, but it is also possible to dispose the low speed gear in the direction pushed by the link and move the change lever to the low speed gear as the link moves. .

[0013]

As described above, the present invention claims 1.
In the high-speed restraint system for the passenger / walking carrier described above, turning the handle bar automatically switches to low-speed operation or neutral, so the state set by mistake at high speed when shifting to walking work There is no danger of getting off at. According to the second aspect of the present invention, the high-speed step regulation device for a vehicle for both riding and walking can be arranged relatively easily because it is connected by a wire. Further, since the high speed stage of the transmission is closed, there is no risk of accidentally switching to a high speed during walking work.

[Brief description of drawings]

FIG. 1 is a plan view of a passenger and walking combined use vehicle to which a high speed stage regulation device is applied.

FIG. 2 is a side view of a vehicle for both riding and walking.

FIG. 3 is a front view of a carrier for both riding and walking.

FIG. 4 is a side view of a handle portion.

FIG. 5 is an explanatory plan view of a changeover portion of the change lever.

FIG. 6 is a front side explanatory view of a changeover portion of a change lever.

FIG. 7 is a side view of the changeover portion of the change lever.

[Explanation of symbols]

1 carrier Two wheels 3 control section 4 cargo bed 5 driver's seat 6 handle rod 7 Change lever 8 operation lever 9 accelerator 10 clutch 11 handle shaft 12 lock pins 13 wires 13a Switching unit 14 plates 15 links 16 axes 17 coil spring

Claims (2)

[Claims] 1. A handle shaft erected on a body frame,
It has handle bars that extend to the left and right sides of the handle shaft, and operates the handle bar from the driver's seat during riding, and turns the handle bar to tilt forward while walking, allowing the operator to walk while walking. In a transport vehicle that performs the operation described above, when the handlebar and the transmission are connected and the handlebar is turned forward, the movement is transmitted to the transmission, and the setting of high-speed operation is switched to low speed or neutral.・ High-speed restraint device for vehicles that can also be used as walkers. 2. The handle rod and the change lever of the transmission are connected by a wire, and when the handle rod is rotated, the movement is transmitted to the change lever by the wire, and the setting of high speed operation of the change lever is switched to low speed or neutral, Furthermore, in order to prevent switching to high speed,
2. The high speed stage of the transmission is closed.
High-speed restraint device for the listed passenger and walking carrier.