JP2507223Y2 - Work vehicle steps - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a step capable of being extended and stored in a work vehicle.

(Prior Art) A work vehicle in which an aerial work implement, a crane, or the like is mounted on the floor surface of a vehicle is provided with a step capable of being extended and retracted so as to be convenient for getting on and off the floor surface.

In this type of conventional step A, as shown in FIG. 3, the base end portion is attached to one side of the vehicle 1 via a support shaft 2 (rotational fulcrum member), and the support shaft 2 (rotational fulcrum member). Around the vehicle 1
It is configured to be rotatable between a horizontal use position extending from one side and a standing storage position within the vehicle width.

However, the conventional step A thus configured
Has a problem that if the overhanging width of the step A is increased, the outer end of the step A projects upward from the floor surface 39 of the vehicle 1 at the standing storage position and hinders effective use of the floor surface 3. .

This invention can increase the overhang width in the horizontal use position without increasing the amount of protrusion of the outer end of the step A above the floor surface 3 of the vehicle 1 in the standing storage position. It is intended to provide the steps of a flexible work vehicle.

(Means for Solving the Problems) In order to solve the above problems, the steps of the work vehicle of the present invention are mounted on one side of the vehicle through a turning fulcrum member provided at the base end thereof, A step rotatable about a dynamic fulcrum member between a horizontal use position extending from one side of the vehicle and a standing storage position within the vehicle width, the step being engaged in the step in the horizontal use position. A rotation restricting member that restricts downward rotation of the step around the rotation fulcrum member is provided, and the rotation fulcrum member has an upper limit in the vicinity of the position of the rotation fulcrum member in the horizontal use position of the step. It was constructed by being attached to one side of the vehicle so as to be vertically movable within a predetermined range.

(Operation) According to the above configuration, the rotation fulcrum member in the standing storage position can be moved downward by a predetermined amount as compared with the horizontal use position, so that the amount of protrusion of the step from the vehicle floor surface can be increased. Instead, it is possible to obtain a step with a large overhang width in the horizontal use position.

(Embodiment) An embodiment of steps of the work vehicle of the present invention will be described with reference to FIGS. 1 and 2.

In step A in the figure, the base end portion is attached to one side of the vehicle 1 via a pivot fulcrum member 2, and the pivot fulcrum member 2 is attached.
It is configured to be rotatable around a horizontal use position that extends from one side of the vehicle 1 and a standing storage position within the vehicle width. 4a,
Reference numeral 4b is a rotation restricting member that engages with the step A in the horizontal use position (FIG. 1) and restricts downward rotation of the step around the rotation fulcrum member 2. The rotation fulcrum member 2 is attached to one side of the vehicle 1 so as to be vertically movable within a predetermined range with the position of the fulcrum member 2 at the horizontal use position (FIG. 1) in step A as an upper limit. Fulcrum member 2
In order to attach the vehicle to one side of the vehicle 1 so as to be movable up and down within a predetermined range, in this embodiment, the channel steels 5 and 5 are provided vertically on the one side of the vehicle 1 so as to oppose each other in the front-rear direction. The shaft 2a of the rotation fulcrum member 2 at the base end of the step is provided in each of the facing grooves 5a of the
Stoppers 6, 6 are provided at appropriate positions of the groove-shaped steels 5, 5 for restricting the upper limit of the movement of the rotation fulcrum member 2 in the groove 5a.

Reference numeral 7 denotes a member that connects the lower ends of the channel steels 5 and 5, and this member 7 restricts the downward movement of step A at a standing storage position (FIG. 2) described later.

The rotation restricting member 4a is arranged below the step A in the horizontal use position (FIG. 1), and supports a position slightly closer to the tip end side of the step A than the rotation fulcrum member 2.

The rotation restricting member 4b is arranged above the step A in the horizontal use position (FIG. 1) and slightly above the rotation fulcrum member 2 to support the position closer to the base end side of the step A.

Reference numeral 8 is a member that connects the upper ends of the channel steels 5 and 5.

To set the step A in the horizontal use position (Fig. 1) to the standing storage position (Fig. 2), raise the outer end of the step A to a position where the step A is almost vertical, and then move the step A downward. Try to slide it down. At this time, the rotation fulcrum member 2 is guided in the groove 5a of the channel steels 5 and 5 and moves downward to be brought to the standing storage position of step A (FIG. 2). Step A is standing storage position (Fig. 2)
In the above, the stoppers 6 and 6 are adapted to regulate the outward falling of the step A, but it is also possible to separately provide an appropriate manual releasable fixing means to regulate this.

From the standing storage position (Fig. 2) to the horizontal use position (Fig. 1)
To do so, the above operation may be reversed.

(Effect) In the step of the work vehicle of the present invention configured and operated as described above, the step can be slid downward in the standing storage position, so that the step in the standing storage position protrudes from the vehicle floor surface. This has the effect that the overhang width from the vehicle side at the horizontal use position can be set large without increasing the amount.

[Brief description of drawings]

1 and 2 are explanatory views of steps of the work vehicle of the present invention, and FIG. 3 is an explanatory view of steps of a conventional work vehicle. Step: A, vehicle: 1, rotation fulcrum member: 2, rotation restriction member: 4
a, 4b,

Claims (1)

(57) [Scope of utility model registration request] 1. A horizontal use position and a vehicle width that are attached to one side of a vehicle through a pivotal fulcrum member provided at a base end thereof and project from one side of the vehicle around the pivotal fulcrum member. A rotation restricting member that is rotatable with respect to the upright storage position and that engages with the step in the horizontal use position to restrict downward rotation of the step around the rotation fulcrum member. And the rotation fulcrum member is attached to one side of the vehicle so as to be vertically movable within a predetermined range with the vicinity of the position of the rotation fulcrum member at the horizontal use position of the step being an upper limit. Car steps.