JP2006027338A - Carrier vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a carrier vehicle adequately operable even by a single hand by enhancing the operability of an accelerator device. <P>SOLUTION: An accelerator device 13 comprises an operation ring 14 integrally turnable with a steering wheel 12 with its diameter being smaller than that of the steering wheel 12, and arranged inward of the steering wheel 12 in the radial direction, a spoke 15 provided with one end thereof being connected to the operation ring 14, a base 16 which is supported by an upper portion of an equipment storage chamber 2 in the vertically movable manner with the other end of the spoke 15 connected thereto, and a detector 18 which is connected to the base 16 via a transmission mechanism 17 to detect the movement of the base 16. The operation ring 14 consists of a parallel portion concentrically formed with the steering wheel 12 and an inclined portion which is inclined upward of a driving cab 4 side with respect to the parallel portion, and the base 16 is supported in the vertically movable manner when the inclined portion is located above the steering wheel 12. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a transport vehicle, and more particularly to an accelerator device for performing an operation for adjusting a traveling speed.

  Conventionally, as a vehicle for transporting luggage on the premises such as a market or a factory, there is a so-called turret type on-site transport vehicle as described in the patent document to be described later. 1 and Patent Document 2 are provided. Such an accelerator device is exclusively operated while grasping a steering handle. However, in the accelerator device of Patent Document 1, the accelerator ring operated by the driver is provided in a forward tilted state, and the front half of the accelerator ring is provided. It has been made to prevent accidental operation.

No. 3-12583 JP 2002-166776 A

  Now, in such a transport vehicle, the driver does not necessarily board the driver's cab with the steering wheel or accelerator device facing the steering wheel or the accelerator device. Often boarded half-board. In such a case, the accelerator ring of the accelerator device is operated with one hand while operating the steering handle.

  Accordingly, an object of the present invention is to improve the operability of an accelerator device, and to allow proper operation with one hand as well as with both hands.

  In order to achieve the above-mentioned object, the present invention comprises, in a front part of a vehicle body, a front wheel and a traveling device that drives the front wheel so as to be capable of turning, and an equipment storage chamber that houses the traveling device. A transport vehicle including a driver's cab on which a driver is boarded at the rear of the storage room, and a steering handle for turning the front wheel and the travel device at the upper part of the equipment storage room, and a travel speed of the transport vehicle. In the transport vehicle provided with an accelerator device for adjusting operation, the accelerator device is provided so as to be able to turn integrally with the steering handle, and is formed to have a smaller diameter than the steering handle. Also, an operation ring arranged on the inner side in the radial direction, a spoke provided with one end connected to the operation ring, and the other end of the spoke are connected, and can be moved up and down at the upper part of the equipment storage chamber A base that is held, and a detector that is connected to the base via a transmission mechanism and detects the amount of movement of the base, and wherein the operating ring is formed in a concentric manner with the steering handle; The base portion is supported so as to be movable up and down with the inclined portion positioned above the steering wheel. It is configured.

  According to this, since the inclined portion of the operation ring is inclined upward on the cab side, the positional relationship between the inclined portion and the steering handle differs depending on the location, and the inclined portion and the steering handle are more separated from each other on the cab side. Will be placed. For this reason, the amount of operation of the operation ring required to move the base up and down by the same amount differs depending on the place to be operated, and it is necessary to operate more greatly on the cab side. In other words, simply changing the operating location can change the relationship between the amount of actual operation of the ramp and the amount of base movement detected by the detector, which allows the driver to fine-tune the travel speed. Is possible. Therefore, the driver can appropriately operate the vehicle even if it is operated with one hand by appropriately selecting a place where the inclined portion is operated so that the transporter can travel as intended. Become.

  In the above configuration, the inclined portion of the operation ring can be formed to be uneven in the radial direction. In this way, it is possible to operate the operation ring by placing a finger on or gripping the uneven portion of the operation ring, and it is possible to perform a reliable operation without the finger slipping. In particular, it is easy to perform an operation while operating the steering wheel, and it is also easy to hold the operation ring in a state where it is operated to some extent.

  According to the present invention, the driver can change the output of the detector with respect to the amount of actual operation of the inclined portion by appropriately selecting a place to operate among the inclined portions of the operating ring. Even when the operation ring is operated with one hand, the operation ring can be appropriately operated, and the traveling speed can be finely adjusted.

  As shown in FIG. 1, the turret type local transport vehicle according to this embodiment is provided with a cylindrical turret 2 that is turnable about a vertical axis at a front portion of a vehicle body 1, and a front wheel 3 at a lower portion of the turret 2. Is provided. A cab 4 on which a driver can board is provided at a rear position of the turret 2 of the vehicle body 1, and a gantry 5 on which a load can be placed is further provided at the rear position. Further, a bumper 6 that protects the turret 2 is provided at the front end of the vehicle body 1, and a backrest 7 is provided between the cab 4 and the cargo bed 5 so as to partition them in the front-rear direction. Further, a battery 8 is mounted at the front and rear center of the vehicle body 1, and a rear wheel 9 is provided at a rear position of the battery 8.

  As shown in FIG. 1, a turret 2 contains a motor 10 that receives power supplied from a battery 8 to drive the front wheels 3 and a controller 11 that controls the motor 10. Are provided with a steering handle 12 for turning the front wheel 3 together with the turret 2 and an accelerator device 13 for adjusting the traveling speed of the turret type local transport vehicle. The steering handle 12 is concentric with the turret 2 and has a diameter slightly larger than that of the turret 2, and an accelerator device 13 is disposed at the center position of the steering handle 12. Then, by operating the steering handle 12, the steering handle 12, the accelerator device 13, the turret 2, the various devices housed in the turret 2 and the front wheel 3 turn together, and the turret type local transport vehicle is steered. The

  As shown in FIG. 2, the accelerator device 13 is formed with a smaller diameter than the steering handle 12, and moves up and down on the operation ring 14, the spoke 15, and the upper portion of the turret 2. A base 16 that can be supported, a transmission mechanism 17, and a potentiometer 18 are provided, and a cover 19 that covers the base 16 from above is provided. As shown in FIG. 3, the operation ring 14 is connected to a base 16 disposed in the center of the operation ring 14 by four spokes 15 arranged at equal intervals in the circumferential direction. The base 16 is moved downward by the pressing operation, and the base 16 is moved upward by the spring that supports the base 16 by weakening (or stopping) the pressing. Then, the vertical movement of the base 16 is transmitted to the potentiometer 18 through the transmission mechanism 17, and a signal corresponding to this is output from the potentiometer 18. The controller 11 controls the motor 10 based on the output signal from the potentiometer 18, thereby realizing traveling at a traveling speed according to the operation of the accelerator device 13.

  The operation ring 14 is formed concentrically with the steering handle 12, and is arranged parallel to the steering handle 12 and somewhat above the steering handle 12 when not operated, as indicated by a solid line in FIG. 2. And a slope portion formed continuously from the parallel portion and inclined upward from the parallel portion to the cab 4 side, that is, upward from the rear side. That is, the parallel portion and the steering handle 12 are spaced apart from each other by a predetermined distance regardless of the location, and the inclined portion and the steering handle 12 are disposed farther apart toward the cab 4 side. As shown in FIG. 1, in a state where the front wheel 3 is directed in the straight traveling direction, the parallel portion forms the front half of the operation ring 14, and the inclined portion forms the latter half of the operation ring 14. Here, as shown by a two-dot chain line in FIG. 2, the inclined portion is formed to be positioned above the steering handle 12 even when the inclined portion is pressed downward to the maximum extent. The base 16 is moved up and down in a state where the inclined portion is above the steering handle 12. Further, as shown in FIG. 3, the operation ring 14 has an uneven portion 14A formed on the inclined portion thereof. The concavo-convex portion 14 </ b> A is formed as a concavo-convex portion in the radial direction so that a driver can place a finger on the concave portion toward the inside from the outside, that is, from the steering handle 12 side. Here, uneven portions 14 </ b> A are formed at predetermined intervals in the circumferential direction in three portions on the side closer to the parallel portion of the inclined portion.

  According to the turret type local transportation vehicle as described above, the output of the potentiometer 18 and the traveling speed of the turret type local transportation vehicle can be changed even if the operation amount is changed by changing the place where the operation ring 14 is operated. Thus, even if the driver operates with one hand, the driver can operate appropriately, and the turret type local transportation vehicle can be driven as desired. In addition, since the operation ring 14 can be operated by placing a finger on or gripping the concavo-convex portion 14A of the operation ring 14, a reliable operation can be performed without the finger slipping. Furthermore, the driver can grasp the relationship between the amount of operation of the operation ring 14 and the traveling speed using the position of the concavo-convex portion 14A as a guideline, so that the place to operate can be selected appropriately. Of course, it is possible to run the turret type local transport vehicle by operating not only the inclined portion of the operation ring 14 but also the parallel portion.

It is a side view of the turret type local transportation vehicle concerning an embodiment of the present invention. It is a side view of the embodiment of the present invention. It is a top view of the embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car body 2 Turret 3 Front wheel 4 Driver's cab 5 Car bed 10 Motor 11 Controller 12 Steering handle 13 Accelerator apparatus 14 Operation ring 15 Spoke 16 Base 17 Transmission mechanism 18 Potentiometer 19 Cover

Claims (2)

A cab in which a front wheel and a traveling device for driving the front wheel are provided at the front of the vehicle body so as to be able to turn, and an equipment storage chamber for storing the traveling device is provided. A steering wheel for turning the front wheel and the traveling device, and an accelerator device for adjusting the traveling speed of the transportation vehicle. In transport vehicles,
The accelerator device is provided so as to be turnable integrally with the steering handle, is formed with a smaller diameter than the steering handle, and is disposed radially inward of the steering handle. A spoke provided with one end connected, a base connected to the other end of the spoke, and supported by the upper part of the device storage chamber in a vertically movable manner, and connected to the base via a transmission mechanism, A detector for detecting the amount of movement of the base,
The operation ring includes a parallel part formed concentrically with the steering handle, and an inclined part formed by inclining the parallel part upward toward the driver's cab. And the base is supported so as to be movable up and down.   2. The transport vehicle according to claim 1, wherein the inclined portion of the operation ring is formed to be uneven in the radial direction.

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