JP4367921B2 - Turret truck - Google Patents

Description

  The present invention relates to a turret truck.

The steering handle of a turret truck, which is frequently used as a light transport vehicle, is composed of a round handle, and is arranged at right angles to the pivot axis as described in Patent Document 1 and Patent Document 2 described later. ing.
Japanese Utility Model Publication No. 53-39929 JP-A-6-144240

  As disclosed in Patent Document 1, the steering handle arranged horizontally is difficult to grasp a portion far from the driver's cab, is unsatisfactory in operability, and is in the state of the steering handle, that is, cut to the right. It is difficult to tell if it is turned to the left or if it is directed straight ahead, and the driver must judge the state of the steering handle from the direction of the instruments provided on the top surface of the turret body. There is a difficulty that must be done.

  Since the steering handle provided at a right angle to the second shaft provided in an inclined manner as disclosed in Patent Document 2 can be easily grasped at a portion far from the cab of the steering handle, Also improves operability.

  However, since it is a round handle, it is difficult to understand the state of the steering handle, and the difficulty that it is difficult to understand the advancing and retracting direction of the vehicle body has not been solved.

  In addition, according to the prior art described in Patent Document 2, a complicated configuration is adopted in which the first shaft fixed to the swivel base and the second shaft connected to the steering handle are connected by a universal joint. There is a problem that the number of points increases and the cost increases.

  Further, according to the conventional technique described in Patent Document 2, the play of the so-called handle is increased by interposing the universal joint, which is not preferable as the handle of the turret truck that the driver grips to maintain the posture. There is also a problem.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a turret truck that allows a driver to easily recognize the traveling direction of a vehicle body.

  In order to achieve this object, the present invention provides a turret track in which a ring-shaped steering handle is fixed on a top plate of a turret supported on a front portion of a frame of a vehicle body. Thus, the technical means is employed which is provided so as to be inclined so as to become higher in the forward direction of the front wheel of the turret.

  According to the present invention, since the steering handle is raised in the forward direction of the front wheel, the driver can visually observe the steering handle or experience the height and inclination of the position where the steering wheel is changed, so that the forward direction of the vehicle body Can be easily recognized.

  Further, according to the present invention, the driver can easily grasp the position of the steering handle away from the cab, and the operability can be improved.

  Further, the steering handle is merely tilted with respect to the pivot axis, and the number of parts is not increased, so that the cost is hardly increased.

  In particular, when the top plate is provided so as to turn integrally with the front wheel of the turret, and the steering handle is fixed to the top plate, there is no play of the steering handle, which is suitable for maintaining the posture of the driver. It will be the best steering handle for turret trucks.

  As described above, according to the present invention, the steering handle is tilted with respect to the turning axis so as to be higher in the forward direction of the front wheel, so that the driver can visually recognize the direction of the steering handle. When the steering wheel is changed, the direction of the vehicle body can be recognized by experiencing the direction of the steering wheel.

  In addition, it is possible to easily grip the position of the steering handle far from the cab and to improve the operability.

  In addition, the number of parts does not increase and the cost is hardly increased, and there is little play of the steering wheel, which is suitable for the steering wheel that the driver holds to hold the body. Obtainable.

  Hereinafter, an embodiment of the present invention will be specifically described with reference to the drawings. In the drawings, FIG. 1 is a perspective view of a turret track according to an embodiment of the present invention, and FIG. 2 is a longitudinal side view of the turret track.

  As shown in FIG. 1, the vehicle body 1 of the turret truck includes a frame 2, a turret 3 supported on the front end portion of the frame 2, a loading platform 4 fixed on the rear half of the frame 2, and the loading platform 4. And a cab 5 provided between the turret 3 and an obstruction device 6 supported at the front end of the frame 2.

  As shown in FIG. 2, the turret 3 includes a turret body 7 that is supported by the frame 2 so as to be pivotable about a longitudinal axis, and the turret body 7 is rotatable about the longitudinal axis by the frame 2. A turntable 8 supported on the turntable 8, a prime mover 9 made of, for example, an electric motor of a horizontal axis supported on the turntable 8, a front wheel 10 supported on the lower side of the turntable 8, and the prime mover 9 A power transmission mechanism 11 for interlocking the front wheels 10 is provided.

  The turret 3 is provided with a turret cover 12. The turret cover 12 is raised at an appropriate interval in the circumferential direction from the periphery of the swivel base 8 so as to swivel integrally with the turret body 7. The plurality of support columns 13 and the swivel base 8 are supported.

  That is, the turret cover 12 has a top plate 14 fixed to the upper end of the column 13 and a cylindrical peripheral plate that is suspended from the peripheral edge to the swivel base 8 and has a lower edge fixed to the swivel base 8. 15.

  Further, the turret 3 is provided with a ring-shaped steering handle 20 fixed on the top plate 14, and a plurality of steering handles 20 are provided on the peripheral portion of the top plate 14 at appropriate intervals in the circumferential direction. It is fixed via (for example, three) legs 16.

  Here, while the upper surface of the peripheral edge portion 14a of the top plate 14 is disposed at right angles to the pivot axis, the steering handle 20 is inclined so as to be higher in the forward direction of the front wheel 10. .

  A driver who knows this in advance, without looking at the steering handle 20, how much the steering handle 20 is turned to the right based on the height of the hand holding the steering handle 20 and the degree of inclination It is possible to easily recognize the advancing / retreating direction of the vehicle body by experiencing whether it is turned to the left or in a straight direction.

  For example, in a straight traveling state, if the left and right hands of the steering handle 20 are gripped with both hands, the left and right hands are the same height. If the steering handle 20 that is cut to the right is held at the left and right positions, However, the steering wheel 20 is gripped at a position where the right hand is higher.

  Further, since the steering handle 20 is raised in the forward direction away from the cab 5, the position of the steering handle 20 far from the cab 5 can be easily grasped, and the operability is improved.

  Further, structurally, it is only necessary to make the length of the leg 16 different from that of the prior art provided with a horizontal steering handle, and there is no need to increase the number of parts and the cost.

  In addition, since the steering handle 20 is rigidly joined to the swivel base 8 via the legs 16, the top plate 14, the support column 13, and the peripheral plate 15, there is no play of the steering handle 20, so It is most suitable as a steering handle 20 for a turret truck that is held by a boarding driver to maintain his / her posture.

  In the above embodiment, the turret cover 12 is fixed to the swivel base 8, but the turret cover 12 is fixed to the frame 2 and the steering handle 20 is swung to the swivel base 8. You may make it the structure fixed by the shaft to the pivot axis center of the stand 8 and a coaxial center.

  If attention is paid only to the effect of allowing the driver to recognize the advancing / retreating direction of the vehicle body, in the above embodiment, the first shaft connected to the turntable 8, the second shaft fixed to the steering handle 20, A universal joint that connects the second shafts or a flexible joint may be provided, and the top plate 14 and the second shaft may be inclined rearward. Here, it goes without saying that the steering handle 20 is inclined with respect to the second shaft so as to be higher in the forward direction of the front wheel 10 as in the above embodiment.

  If comprised in this way, since the driver | operator can experience the inclination of the steering wheel 20, he can recognize which direction the front wheel 10 has faced.

  FIG. 3 is a longitudinal side view of a turret track according to another embodiment of the present invention.

  In this embodiment, the prime mover 9 of the turret body 7 is composed of an electric motor with a vertical axis, and a power transmission device 11 is connected to the lower side of the prime mover 9.

  A support frame 17 is erected on the front end portion of the frame 2, and a holder 18 incorporating a bearing is supported on the support frame 17, and an upper portion of the power transmission device 11 is rotatably fitted in the holder 18. .

  The top plate 14 and the peripheral plate 15 of the turret cover 12 are divided, the peripheral plate 15 is fixed to the upper surface of the frame 2 and the support frame 17, and the top plate 14 is disposed above the prime mover 9 via an electromagnetic brake 19. Fixed.

  Other configurations, operations, and effects of this embodiment are the same as those in the above-described embodiment of the present invention.

  The present invention is applied to a turret track.

It is a perspective view of the present invention. It is a side view of the present invention. It is a side view of the present invention.

Explanation of symbols

1 Car body 2 Frame 3 Turret 8 Turntable 10 Front wheel 14 Top plate 20 Steering handle

Claims (2)

In a turret truck in which a ring-shaped steering handle is disposed on a top plate of a turret supported at the front part of the frame of the vehicle body, the steering handle is raised in the forward direction of the front wheel of the vehicle body with respect to the pivot axis The turret track is provided so as to be inclined. The turret truck according to claim 1, wherein the top plate is provided so as to turn integrally with a front wheel of the turret, and the steering handle is fixed to the top plate.

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