JPH0624251U - Passenger powered trolley - Google Patents

Abstract

(57) [Summary] (Corrected) [Purpose] Providing a passenger powered trolley that excels in gear shifting operability, does not require a separate braking system, and generates a large torque in a low speed range and can obtain a stable speed. To do. [Structure] A base 1 and wheels 8 movably supporting it via an axle 6 and a DC electric motor 4 driving the axle 6 via an interlocking mechanism 7 are connected to a power source at an input shaft 3. And the output shaft 5 has an interlocking mechanism 7
The friction continuously variable transmission 2 engaged with, and the rotating handle 18 and the stationary element including the base 1 are pivotally attached to the stationary element including the base 1 with two outputs. A T-shaped crank 21 pivotally mounted with an input portion and rotated by a pressing force or a traction force applied to each input portion to operate the transmission ring 10 of the friction continuously variable transmission 2 in the speed increasing direction and the speed decreasing direction. , A wire 23 for connecting each output part of the rotary handle 18 and each input part of the crank and transmitting the rotation of the rotary handle 18 to the crank.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 TECHNICAL FIELD The present invention relates to a riding type power truck for towing or carrying, etc., which an operator rides and travels.

[0002]

[Prior art]

 The power bogie is basically composed of a base and wheels that movably support the base via an axle, and a power source that drives the axle via an interlocking mechanism. Specifically, a hand truck and a hand lift truck. , Pallet trucks, platform trucks and low-speed passenger cars for people with disabilities and the elderly are known.

[0003] Generally, gear shifting of the power cart is performed by electrical control of a DC electric motor that is a power source. However, in such a direct gear shifting of the DC electric motor, a large torque is generated in a low speed range. Since the output cannot be output, the speed of the base becomes unstable, and the load tends to collapse at the time of starting or braking.In addition, since the current used is large, the capacity of the electric system becomes large, and the machine different from the drive system is used. There was a problem such as the need for a braking system consisting of a system brake.

[0004]

[Problems to be solved by the device]

 An object of the present invention is to provide a passenger powered trolley which is excellent in gear shifting operability, does not require a separate braking system, can generate a large torque in a low speed range, and can obtain a stable speed.

[0005]

[Means for Solving the Problems]

 The riding type power bogie according to the present invention is a power bogie including a base and wheels that support the base so that it can travel via an axle and a power source that drives the axle via an interlocking mechanism. A friction continuously variable transmission which includes a shaft rotation speed / input shaft rotation speed) 0 in the speed change range, is connected to the power source at the input shaft, and is engaged with the interlocking mechanism at the output shaft, and the base. It has a rotary handle that is pivotally attached to a stationary element including a rotary element and that generates a pressing force or a traction force at each output section by its rotation, and a stationary element that includes a base has two input sections. And a crank for rotating the gear shifting element of the frictionless continuously variable transmission in an increasing direction and a decelerating direction by pivoting by a pressing force or a traction force applied to each input section, and each output section of the rotary handle. Connect with each input part of crank It is characterized in that an operating member for transmitting the rotation of Rutotomoni rotation handle to the crank.

As the friction continuously variable transmission, the one disclosed in Japanese Patent Publication No. 57-13221 can be preferably used, the wheels may be provided with endless track crawler tracks, and the operating member is a link. And wires can be used.

[0007]

[Action]

 In the above structure, when the rotary handle is rotated to one side or the other, the rotation is transmitted to the crank through the operating member and further transmitted to the speed change element of the friction continuously variable transmission, and the speed change element is decelerated or accelerated. Operated in the direction. The braking of the power carriage is easily performed by decelerating the speed change element to reach the speed change ratio of 0, regardless of the braking system of another system.

[0008]

【Example】

 FIG. 1 is a longitudinal sectional view of an essential part of a passenger power truck according to a first embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of an essential part of a passenger power truck according to a second embodiment of the present invention.

In the first embodiment shown in FIG. 1, a frictionless continuously variable transmission 2 including a speed ratio of 0 in a speed change range is provided below a base 1, and a DC electric motor as a power source is provided on an input shaft 3 thereof. 4, the DC electric motor 4 can be driven by a storage battery (not shown), and the output shaft 5 coaxial with the input shaft 3 has an axle 6 at a right angle thereto. The wheels 8 are fixed to the axle 6 through rotatably engaging with each other, and the axes of the input shaft 3 and the output shaft 5 are arranged in the traveling direction with the former as the front.

The friction continuously variable transmission 2 includes a small diameter transmission wheel 9 connected to the input shaft 3 between an input shaft 3 and an output shaft 5, a non-rotating transmission ring 10 as a transmission element, and an output. A large diameter transmission wheel 12 connected to the shaft 5 via a pressure adjusting cam 11, and a plurality of conical rotors 13 that perform planetary motion while frictionally engaging with the three transmission members under force balance. It is housed in a case 14, and gear shifting is performed by moving the transmission ring 10 in the axial direction along the conical generatrix of the conical trochanter 13, so that the transmission ring 10 has a conical trochanter as shown in FIG. When frictionally engaged with the outermost peripheral portion of 13, the speed change range becomes 0 and the rotational speed of the output shaft 5 becomes 0. The speed change ring 10 is integrated with a speed change operation rod 15 which is slidably in contact with a case 14 so as to be movable in the axial direction.

A handrail 16 is projectingly provided on the base 1, and a rotary handle 18 is rotatably provided at an end portion of the handrail 16 via a pivot 17 parallel to the axle 6, and the rotary handle 18 has a bar diametrically. 19 is fixed, and a T-shaped crank 21 is supported on the front side of the shift operating rod 15 through a pivot 20 parallel to the axle 6 in the case 14, and the T-shaped crank 21 longitudinal axis tip and the shift operating rod 15 are supported. The front end is pivotally connected via a pin shaft 22, so that both ends of a bar 19 as an output part of the rotary handle 18 and both ends of a horizontal shaft as an input part of the T-shaped crank 21 intersect with a wire 23 as an operating member. Each wire 23 is connected to each other, and each wire 23 is passed through each pipe 24 which is arranged so as to intersect between the base 1 and the case 14.

On the other hand, the interlocking mechanism 7 includes a slide gear 26 spline-engaged with the output shaft 5 so as to be interlocked with the output shaft 5 and movable in the axial direction, and a clutch operating rod 27 for moving the slide gear 26 in the axial direction. The driven bevel gear 28 provided on the axle 6 meshes with the slide gear 26 and the spur gear portion so as to engage and disengage, and the driven bevel gear 28 and the bevel gear portion mesh with each other at a right angle. The rotation of the output shaft 5 is transmitted to the axle 6 through the slide gear 26, the interlocking gear 29 and the driven bevel gear 28 in order, and the clutch operating rod 27 is moved forward or backward. When operated, the slide gear 26 is engaged with or disengaged from the interlocking gear 29, and the transmission from the output shaft 5 to the axle 6 is cut off or connected.

In the power bogie having the above-mentioned structure, when the rotary handle 18 is rotated counterclockwise, the T-shaped crank 21 is rotated clockwise through one wire 23 and the transmission ring 10 is increased. The base 1 is accelerated by operating in the speed direction. When the rotary handle 18 is rotated clockwise in that state, the T-shaped crank 21 is rotated counterclockwise via the other wire 23 and the transmission ring 10 is operated in the deceleration direction. The base 1 is decelerated.

Next, the second embodiment shown in FIG. 2 has basically the same structure as the first embodiment except that cranks are provided at two places.

In FIG. 1, an L-shaped crank 31 is supported in the case 14 via a pivot 20 parallel to the axle 6 with the gear shift operation lever 15 sandwiched in the front-rear direction. The front end and the rear end of the speed change lever 15 are made to face each other, and both ends of the bar 19 as an output part of the rotary handle 18 and the tip of the horizontal shaft as an input part of each L-shaped crank 31 are operated as a wire 23 as an operating member. Are connected with each other.

In the power bogie having the above-described structure, when the rotary handle 18 is rotated counterclockwise, the rear L-shaped crank 31 is rotated clockwise through the wire 23 and the transmission ring 10 is rotated. The base 1 is accelerated by being operated in the acceleration direction. When the rotary handle 18 is rotated clockwise in that state, the front L-shaped crank 31 is rotated counterclockwise via the other wire 23 and the transmission ring 10 is operated in the deceleration direction. The base 1 is decelerated.

[0017]

[Effect of device]

 Since the passenger powered trolley according to the present invention is configured as described above, it excels in gear shifting operability, does not require a separate braking system, and produces a large torque in a low speed range and a stable speed is obtained. .

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of a main part of a riding type power truck according to a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of a main part of a riding type power truck according to a second embodiment of the present invention.

[Explanation of symbols]

 1 base 2 friction continuously variable transmission 3 input shaft 4 direct current electric motor 5 output shaft 6 axle 7 interlocking mechanism 8 wheels 10 speed change ring 18 rotary handle 21 T-shaped crank 23 wire

Claims (1)

[Scope of utility model registration request] 1. A power vehicle comprising a base and wheels for movably supporting the vehicle via an axle, and a power source for driving the axle via an interlocking mechanism. A friction continuously variable transmission, which is connected to a power source at an input shaft and is engaged with an interlocking mechanism at an output shaft, and is pivotally attached to a stationary element including a base with two output portions and its rotation. A rotary handle for generating a pressing force or a traction force to each output part by means of a rotary handle and a stationary element including a base are pivotally attached with two input parts and are rotated by a pressing force or a traction force applied to each input part. And a crank for operating the speed change element of the friction continuously variable transmission in an increasing direction and a decelerating direction, and an operating member for connecting each output section of the rotary handle and each input section of the crank and transmitting the rotation of the rotary handle to the crank. And Passenger powered trolley characterized by