JP2018192927A - Tractor - Google Patents

Abstract

To simplify a structure while increasing a support strength of an oil feeding base.SOLUTION: A tractor which comprises an oil feeding base 11 on which an oil tank is loaded, and in which the oil feeding base 11 is so configured as to be rotatable and capable of being changed in an attitude thereof between an oil feeding attitude in which the oil tank is so lodged as to be capable of being loaded and a standing retreat attitude. The oil feeding base 11 comprises: an oil feeding base frame 12 having a U-shape in a plan view in the oil feeding attitude; a rotary support shaft 14 which extends to an airframe side from the oil feeding base frame 12 and is rotatably supported by a rotary support member 13 provided on the airframe side; a reinforcement member 15 which connects one end part of the oil feeding base frame 12 and the rotary support shaft 14; a stopper 16 which is provided on the reinforcement member 15; and a rotation regulation member 17 which is provided on the rotary support member 13, and maintains an attitude of the oil feeding base frame 12 in the oil feeding state and the retreat attitude, based on contact thereof with the stopper 16.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a tractor including a fueling table on which a fueling tank is placed.

  Generally, in a tractor, when fuel is supplied to the fuel tank, a fuel tank such as a poly tank is placed near the fuel tank and the fuel in the fuel tank is supplied to the fuel tank using a manual or electric pump. doing. However, a tractor that has a fuel filler opening in the upper part of the fuselage (for example, the upper part of the bonnet) and that does not have a space for placing the fuel tank is difficult to stably support the fuel tank. There is a problem.

  In view of this, it has been proposed to provide a fueling table on which the fueling tank can be placed in the vicinity of the fuel tank (see, for example, Patent Document 1). According to such an oil supply stand, the oil supply tank can be stably supported at the time of oil supply, so that the workability at the time of oil supply can be improved. Moreover, since the oil supply stand shown by patent document 1 is comprised so that rotation change-form is possible in the oil supply attitude which laid down so that a fuel tank can be mounted, and the standing retracted attitude, it is the normal time which does not perform oil supply In addition, it is possible not only to prevent the fueling base from interfering, but also to make the fueling base function as a grip for getting on and off that is gripped when getting on and off the aircraft.

Japanese Patent No. 4624865

  However, in the fueling base shown in Patent Document 1, the fueling tank is supported by the fueling base frame that is U-shaped in plan view in the fueling posture. Therefore, when a fueling tank having a large capacity is placed, the strength of the fueling base frame is insufficient. There was a possibility that the support of the oil tank would become unstable. Moreover, in the fueling table shown in Patent Document 1, the mechanism for maintaining the posture of the fueling table frame between the fueling posture and the retracted posture is complicated, and there is room for improvement in terms of cost.

The present invention has been created in view of the above-described circumstances for the purpose of solving these problems, and the invention of claim 1 includes a fueling base on which a fueling tank is placed, and the fueling base is provided. , A tractor configured to be able to rotate and change into a refueling posture in which the refueling tank is placed so that it can be placed, and a retreating posture in a standing position. An oil supply base frame, a rotation support shaft extending from the oil supply base frame to the machine body and supported rotatably by a rotation support member provided on the machine body side, and both ends of the oil supply base frame Or a reinforcing member that connects one end of the fueling base frame and the pivot shaft, a stopper provided on the reinforcing member, and a pivot support member provided on the basis of contact with the stopper. , The fueling stand frame posture of the fueling Characterized in that it comprises a rotation restricting member to maintain the energization to the retracted position, the.
The invention of claim 2 is the tractor according to claim 1, wherein the refueling base frame is retracted based on contact between the stopper and the rotation restricting member when in the retracted position. The rotation to the oil supply posture side is suppressed by a resistance applying member that stands up along the front side of the entrance and exit in a state in which the rotation to the side beyond the posture is restricted, and imparts a rotation resistance. To do.
The invention of claim 3 is the tractor according to claim 1 or 2, characterized in that the stopper is constituted by two pins arranged so as to sandwich the rotating support shaft. To do.
The invention according to claim 4 is the tractor according to claim 3, wherein the rotation restricting member is based on contact with the two pins when the oil supply base frame is in the oil supply posture. The rotation of the oil supply base frame to the side beyond the oil supply posture is restricted.

According to the invention of claim 1, since the reinforcing member that connects both ends of the U-shaped fueling base frame or one end of the fueling base frame and the rotation support shaft is provided, the strength of the fueling base is increased. The oil tank can be stably supported. A stopper is provided on the reinforcing member to maintain the posture of the fueling base frame between the fueling posture and the retracted posture based on the contact with the rotation restricting member, so that the structure is compared with the case where the stopper is provided on another member. The manufacturing cost can be reduced.
According to a second aspect of the present invention, when the refueling base frame is in the retracted position, the rotation of the oil supply base frame beyond the retracted position is restricted based on the contact between the stopper and the rotation restricting member. Since it stands up along the front side of a boarding / alighting port, even if it uses a fueling base frame as a grip for boarding / alighting at the time of body getting on / off, rotation to the back of a fueling base frame can be controlled reliably. In addition, when the refueling base frame is in the retracted position, rotation to the oiling position side is suppressed by the resistance applying member that applies the rotation resistance. It can be prevented from falling down.
According to the invention of claim 3, since the stopper is constituted by two pins arranged so as to sandwich the rotation support shaft, the rotation restricting member that comes into contact with the pin can also be configured compactly. .
According to the invention of claim 4, when the oil supply base frame is in the oil supply attitude, the rotation restricting member is on the side beyond the oil supply attitude of the oil supply base frame based on contact with the two pins constituting the stopper. Therefore, the load of the fuel tank can be reliably received by the contact with the two pins.

It is a left view of the tractor which concerns on one Embodiment of this invention. It is a principal part perspective view of the tractor which shows the fueling stand of a retracted attitude. It is a principal part perspective view of the tractor which shows the fueling stand of a fueling attitude | position. It is a principal part perspective view of the tractor which shows the attachment structure of a fueling stand. It is a principal part disassembled perspective view of the tractor which shows the attachment structure of a fueling stand. It is a perspective view which shows the fueling stand of a retracted attitude | position. It is a 3rd page figure which shows the refueling stand of a retracted attitude, (a) is a top view which shows the refueling stand of a retracted attitude, (b) is a front view which shows the refueling stand of a retracted attitude, (c) is a refueling stand of a retracted attitude FIG. It is a side view which shows the fueling stand of a fueling attitude | position.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a traveling body of a tractor. An engine mounting portion 2 is formed at the front of the traveling body 1, and an operation portion 3 that is an operator's boarding space is formed behind the engine mounting portion 2. Yes.

  The engine mounting portion 2 includes an engine room (not shown) in which an engine (not shown) and the like are arranged, a front grill 4 that covers the front part of the engine room, and a side cover 5 that covers both the left and right sides of the engine room. And an openable / closable bonnet 6 that covers the upper part of the engine room.

  As shown in FIGS. 1 to 5, a fuel tank arrangement chamber (not shown) partitioned by a partition wall 7 is formed at the rear end of the engine room, and a fuel tank (not shown) is arranged here. Has been. The fuel tank has a fuel filler port (cap) 8 at the upper portion, and fuel is supplied from here. The partition wall 7 includes a front-view-type partition frame 7a supported by a body frame (not shown), and a partition plate 7b provided inside the partition frame 7a.

  A boarding / alighting opening 3a is formed on both left and right sides of the operation unit 3, and a step 9 for boarding / alighting is provided at the foot. The operator gets on and off the traveling machine body 1 using the step 9 for getting on and off as a stepping board. When getting on and off the traveling machine body 1, the left entrance / exit 3a is usually used. Therefore, a boarding / unloading grip 10 is provided on the front side of the left side entrance 3a so as to be gripped when the machine gets on and off. The front end portion of the step 9 for getting on and off is formed so as to rise obliquely upward, and is fixed to a bracket 7c protruding from the partition frame 7a.

  The traveling machine body 1 is provided with a fueling table 11 in a position near the fuel filler opening 8 (near the side in a plan view) and near the left entrance / exit 3a (near the front side in a plan view). This fueling base 11 is provided for placing a fueling tank (not shown) such as a polytank when refueling the fuel tank via the fueling port 8, but the fueling base 11 of this embodiment is When the vehicle is turned from the lying down position to the retracted position, it also functions as a grip for getting on and off when the aircraft gets on and off the vehicle. The following is a detailed description of the oil supply stand 11 and its support structure.

  As shown in FIGS. 2 to 8, the fueling base 11 is a U-shaped fueling base frame 12 in a plan view, and extends from the fueling base frame 12 to the traveling machine body 1 side in the left-right direction. A rotation support shaft 14 rotatably supported by a rotation support member 13 provided on the machine body 1 side, and both ends of the fuel supply base frame 12, or one end of the fuel supply base frame 12 and the rotation support shaft 14 The reinforcing member 15 that connects the two, the stopper 16 provided on the reinforcing member 15, and the rotation support member 13, and based on the contact with the stopper 16, the posture of the oiling base frame 12 is changed to the oiling posture and the retracted posture. And a rotation restricting member 17 that is maintained at the same time.

  The fueling base frame 12 of the present embodiment is obtained by bending a metal pipe member into a U shape, and the opening on one end side is covered with a cap 12a, while the opening on the other end side is made of metal. A rotation support shaft 14 made of a shaft member is inserted and is integrally joined by welding or the like so as not to be relatively rotatable.

  The reinforcing member 15 of the present embodiment is made of a metal plate member, one end of which is integrally joined to one end of the fueling base frame 12 by welding or the like, and the other end is connected to the intermediate portion of the rotation support shaft 14. They are joined together by welding or the like. That is, the reinforcing member 15 constitutes a rectangular frame body that is excellent in strength together with the oil supply base frame 12, and enables the oil supply tank 11 to stably support the oil supply tank. In addition, although the reinforcement member 15 of this embodiment has connected the one end part of the fueling base frame 12, and the rotation spindle 14, you may make it connect the both ends of the fueling base frame 12 with each other.

  The stopper 16 of the present embodiment is disposed in the vicinity of the joint portion between the reinforcing member 15 and the rotation support shaft 14. Specifically, the stopper 16 of the present embodiment is composed of two pins 16a and 16b arranged so as to sandwich the rotation support shaft 14, and is provided on the rotation support member 13 side. Based on the contact with the regulating member 17, the posture of the fueling base frame 12 is maintained in the fueling posture and the retracted posture.

  The rotation support member 13 is a metal pipe member that rotatably supports the rotation support shaft 14 at the inner peripheral portion, and is provided between the partition frame 7a described above and the base 18 that is arranged in parallel inside the partition frame 7a. It is installed in a non-rotatable state. The rotation support shaft 14 is inserted into the rotation support member 13 from the outside, and is prevented from being removed by a washer 19 inserted through the screw portion 14a at the tip and a double nut 20 screwed into the screw portion 14a. Is done. The washer 19 and the double nut 20 may also serve as a resistance applying member that applies a frictional resistance between the rotating support shaft 14 or the reinforcing member 15 and the rotating support member 13 in order to suppress the rotation of the fuel supply frame 12. It functions, and the resistance to be applied can be adjusted based on the tightening degree.

  The rotation restricting member 17 is integrally joined to the outer end portion of the rotation supporting member 13 by welding or the like at a position overlapping the pins 16a and 16b in the axial direction. The rotation restricting member 17 of the present embodiment is made of a metal plate member, and a first abutting portion 17a that abuts on one pin 16a when the oiling base frame 12 is rotated from the retracted position to the oiling position. And a second contact portion 17b that contacts the other pin 16b, and a third contact portion that contacts the other pin 16b when the fuel supply frame 12 is rotated from the oil supply position to the retracted position. 17c.

  That is, the rotation restricting member 17 according to the present embodiment restricts the rotation of the oil supply base frame 12 to the side beyond the oil supply attitude based on the contact with the two pins 16a and 16b. While the fueling posture of the frame 12 is maintained, the oiling base frame 12 is retracted by restricting the rotation of the fueling base frame 12 beyond the retracting posture based on the contact with any one of the pins 16b. It is configured to maintain the posture. The refueling base frame 12 is allowed to rotate in the retracted position in the refueling position and is allowed to rotate in the refueling position in the retracted position. Since an appropriate rotational resistance is applied by the nut 20, for example, the refueling stand frame 12 is prevented from falling to the refueling posture side due to machine vibration or the like.

  According to the present embodiment configured as described above, the reinforcing member 15 that connects both end portions of the U-shaped oil supply base frame 12 or one end portion of the oil supply base frame 12 and the rotation support shaft 14 is provided. Thus, the strength of the oil supply base 11 can be increased to stably support the oil supply tank.

  The reinforcing member 15 is provided with a stopper 16 for maintaining the posture of the fueling base frame 12 between the fueling posture and the retracted posture based on the contact with the rotation restricting member 17. The structure can be simplified and the manufacturing cost can be reduced as compared with the case where it is provided.

  In addition, since the stopper 16 is composed of two pins 16a and 16b arranged so as to sandwich the rotation support shaft 14, the rotation restricting member 17 that contacts the pins 16a and 16b can also be configured compactly. it can.

  Further, when the oil supply base frame 12 is in the oil supply attitude, the rotation restricting member 17 moves to the side beyond the oil supply attitude of the oil supply base frame 12 based on the contact with the two pins 16a and 16b constituting the stopper 16. Therefore, the load of the fuel tank can be reliably received by the contact with the two pins 16a and 16b.

  In addition, when the refueling base frame 12 is in a retracted position that does not receive a large load, based on the contact between any one of the pins 16b and the rotation restricting member 17, the oil supply base frame 12 is moved to a side beyond the retracted position. Since the rotation is restricted, the rotation restricting member 17 can be configured simply.

  In addition, the fueling base 11 further includes a resistance imparting member (a washer 19 and a double nut 20) that suppresses the rotation of the fueling base frame 12 toward the fueling attitude when the fueling base frame 12 is in the retracted attitude. It is possible to prevent the fuel supply base frame 12 from falling to the fuel supply posture side due to the vibration of the airframe.

  In addition, the fuel stand frame 12 stands up along the front side of the right entrance 3a when in the retracted position, and the rotation restricting member 17 is in contact with one of the pins 16b when the fuel stand frame 12 is in the retracted position. Since the rearward rotation of the fueling base frame 12 is restricted based on the contact, even if the fueling base frame 12 is used as a grip for getting on and off when the vehicle gets on and off the vehicle body, the rearward rotation of the fueling base frame 12 is prevented. It can be regulated reliably.

DESCRIPTION OF SYMBOLS 1 Traveling machine body 2 Engine mounting part 3 Operation part 3a Entrance / exit port 8 Oil supply port 11 Oil supply stand 12 Oil supply stand frame 13 Rotation support member 14 Rotation support shaft 15 Reinforcement member 16 Stopper 16a, 16b Pin 17 Rotation restriction member 19 Washer 20 Double nut

Claims (4)

A tractor comprising a fueling table for placing a fueling tank, wherein the fueling table is configured to be able to rotate and change into a fueling posture in which the fueling tank is laid down so that the fueling tank can be placed and a standing retreating posture. ,
The fuel stand is
A fuel stand frame in a U shape in plan view in the fueling posture;
A pivot that extends from the fueling base frame to the machine body and is rotatably supported by a rotation support member provided on the machine body;
Reinforcing members that connect both ends of the fueling base frame or one end of the fueling base frame and the pivot shaft;
A stopper provided on the reinforcing member;
A rotation restricting member that is provided on the rotation support member and maintains the posture of the oil supply base frame in the oil supply posture and the retracted posture based on contact with the stopper. Tractor.   When the refueling frame is in the retracted position, the fuel supply frame extends along the front side of the entrance in a state where the rotation to the side beyond the retracted position is restricted based on the contact between the stopper and the rotation restricting member. 2. The tractor according to claim 1, wherein the rotation toward the fuel supply posture side is suppressed by a resistance applying member that stands up and applies rotation resistance.   3. The tractor according to claim 1, wherein the stopper includes two pins arranged so as to sandwich the rotating support shaft.   The rotation restricting member restricts the rotation of the oil supply base frame to the side beyond the oil supply attitude based on contact with the two pins when the oil supply base frame is in the oil supply attitude. The tractor according to claim 3, wherein

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