JPH06199181A - Auxiliary step installing structure in industrial vehicle - Google Patents

Abstract

PURPOSE:To facilitate getting on and off of an operator requiring an auxiliary step, and prevent the auxiliary step from becoming an obstacle to other operator by maintaining the auxiliary step swingably arranged in a body side wall part, in a vertical condition by a spring when it is not used, and in a horizontal condition by a locking part when it is used. CONSTITUTION:Bearing pipes 22 arranged on a frame 2 constituting a lower side wall of a step 1 formed on a body and bearing pipes 31 of an auxiliary step 3 constituted of a metal plate 30, are installed by a swinging pin 4 so as to be capable of swinging. One end 51 of a coil spring 50 out-fitted to the bearing pipes 31 is locked on a lower part of the frame 2, and the other end 52 is locked on an outside lower part of the auxiliary step 3, and this is maintained always in a vertical condition. When an operator puts his foot on an inserting part 7 and the auxiliary step 3 is put in a horizontal condition, this condition is maintained by being locked on the lower part of the frame 2 by projections 60 formed integrally in the bearing pipes 31. Thereby, getting on and off of the operator requiring the auxiliary step can be facilitated, and the auxiliary step does not become an obstacle when it is not used.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for an auxiliary step arranged below a step formed on a side wall of a body of an industrial vehicle such as a forklift truck.

[0002]

2. Description of the Related Art Steps formed on a side wall portion of a body of a conventional industrial vehicle such as a forklift truck are set to a certain height assuming a standard operator.

Further, the conventional auxiliary step shown in FIG. 9 is a step S formed on a frame F forming a side wall of a body.
A fixed auxiliary step FS is additionally provided below the vehicle so that a person with a short height, a person with a large thickness, a person with a disability or the like can easily get on the vehicle and the riding ability is enhanced.

[0004]

The above-mentioned conventional industrial vehicle has a problem that the height of steps is constant, and therefore it is difficult for a person with a short height or a person with a large thickness to get on, and the rideability is poor. It was.

The conventional fixed type auxiliary step shown in FIG. 9 is rather a hindrance when an operator with a height higher than the standard gets on or off, and since it is always fixed, it protrudes in the lateral direction during traveling, so There was a problem that it might collide with objects or walls placed on the side of the.

Therefore, the first technical idea of the present invention is that the inventor is in a horizontal use state only when an operator with a short height gets on and off, and automatically puts it in a stored state in an unused state after use. In order to avoid completely obstructing the operation of the operator who does not need the auxiliary step, the auxiliary step can be freely engaged and disengaged, and only when a short person or other person who needs the auxiliary step operates the operator. Focusing on the second technical idea of the present invention that it can be removed with one touch when the operator wears it and replaces the operator who does not need the auxiliary step, and as a result of further research and development, it has a simple structure and A book that achieves the purpose of facilitating the entry and exit of low-operated operators and not hindering the entry and exit of other operators. It has reached the light.

[0007]

The mounting structure of the auxiliary step in the industrial vehicle according to the present invention (the first invention according to claim 1) can swing on the side wall portion below the step formed in the body of the industrial vehicle. The auxiliary step composed of a plate-shaped member disposed on the rear side, a swing pin that locks one end of the auxiliary step with respect to the side wall of the body so that the auxiliary step is locked, and the auxiliary step is not used. In some cases, it consists of a spring that biases the auxiliary step to keep it vertical, and a locking portion that keeps the auxiliary step horizontal when your foot is rested on the auxiliary step.

The auxiliary step mounting structure for an industrial vehicle according to the present invention (the second invention according to claim 2) is different from the first invention in that when the auxiliary step is in a vertical state, the auxiliary step protrudes laterally from the body side wall. A gap is formed between the auxiliary step and an insertion portion that allows the auxiliary step to swing easily by inserting shoes is added.

The mounting structure of the auxiliary step in the industrial vehicle of the present invention (the third invention according to claim 3) is different from the second invention in that the base portion for supporting the auxiliary step so as to be rockable by a rocking pin. In addition to this, the base portion is provided with a locking portion that is removably locked to the side wall portion below the step of the body.

[0010]

The auxiliary step mounting structure for the industrial vehicle of the first aspect of the present invention having the above-mentioned structure has a structure in which one end of the auxiliary step which is vertically housed by a spring is used when, for example, a short operator who needs the auxiliary step gets on and off. The foot is put on and rocked around the rocking pin, and the foot is put on and off the auxiliary step which is maintained in the horizontal state by the locking part.When the foot is released, the spring automatically moves to the vertical storage state. Return.

The auxiliary step mounting structure of the industrial vehicle according to the second aspect of the present invention having the above-described structure enables the auxiliary step, for example, when a short operator gets on and off the vehicle.
By inserting shoes into the insertion part that has a gap between the auxiliary step that is vertically housed by the spring and the side wall of the body, and putting your foot on it, you can easily swing it around the swing pin By putting your foot on and off the auxiliary step maintained in a horizontal state, the spring automatically returns to the vertically stored state when you release your foot.

In the auxiliary step mounting structure of the industrial vehicle of the third aspect of the present invention, the auxiliary step is swingably supported by the swing pin when, for example, a short operator who needs the auxiliary step gets on and off. It is attached to the side wall portion below the step of the body by the locking portion formed on the base portion, has the same effect as the second invention when getting on and off, and removes the auxiliary step when the operator changes. .

[0013]

The attachment structure of the auxiliary step in the industrial vehicle according to the first aspect of the present invention, which has the above-described operation, facilitates the entry / exit of an operator who needs the auxiliary step and the entry / exit of another operator who does not need the auxiliary step. It has the effect of not being an obstacle.

In addition to the effect of the first aspect of the invention, the auxiliary step mounting structure for an industrial vehicle of the second aspect of the invention which has the above-described action has an insertion portion formed in the auxiliary step. This brings about an effect that the auxiliary step can be easily rocked by applying the foot.

In addition to the effect of the second aspect of the invention, the auxiliary step mounting structure for an industrial vehicle of the third aspect of the invention, which has the above-described action, removes the auxiliary step when an operator who needs the auxiliary step is replaced by an unnecessary operator. The effect of not getting in and out of other operators at all is obtained.

[0016]

Embodiments of the present invention will now be described in detail with reference to the drawings.

(First Embodiment) The mounting structure of the auxiliary step in the industrial vehicle of the first embodiment is the embodiment of the first and second inventions, and is attached to the body of the forklift FL as shown in FIGS. 1 to 5. Auxiliary step 3 constituted by a rectangular plate 30 swingably arranged on a frame 2 constituting a side wall portion below the formed step 1, and a lower end of the auxiliary step 3 can be swung on a lower portion of the frame 2. The rocking pin 4 that locks, the coil spring 5 that locks at both ends of the auxiliary step 3 and urges the auxiliary step to be stored vertically when the auxiliary step is not used, and the foot is hooked on the auxiliary step 3. The projection 60 formed at the lower end of the auxiliary step 3 for horizontally locking the auxiliary step 3 when
And the insertion portion 7 for inserting the shoe formed in the center of the upper portion of the auxiliary step 3 in the vertical state.

The auxiliary step 3 is the rectangular metal plate 3
A bearing pipe 31 having a diameter of 0 and having the swing pin 4 interposed is welded slightly inward from the center and both ends of the lower long side.

Below the step 1 of the frame 2, a swing pin 4 having a length substantially equal to the length of the bearing pipe 31 of the auxiliary step 3 is inserted together with the bush 4B,
The auxiliary step 3 is swingably supported on the frame 2.

The coil spring 5 is composed of a coil spring 50 with both ends 51 and 52 facing upward in a free state, and is inserted into the outer side of the bearing pipe 31 on both sides of the auxiliary step 3 with respect to the swing pin 4 and a spacer. Lock the 5S and E-rings. That is, the coil spring 50
The inner end 51 of the coil spring 50 is locked to the lower portion 2D of the frame 2 and the outer end 52 thereof is locked to the lower portion of the outer side of the auxiliary step 3, so that the auxiliary step 3 is urged by elastic deformation of the coil spring 50. 2 is kept in a vertical state parallel to 2 and kept inside the mudguard M.

The engaging portion 6 is composed of a plate-like projection 60 formed integrally with the bearing pipes 31 disposed on both sides of the lower portion of the auxiliary step 3, and the auxiliary step 3 is placed horizontally by the operator's feet. Then, the protrusion 60 is locked to the lower portion 2D of the frame 2 to lock the auxiliary step 3 in a horizontal state.

The insertion section 7 forms a rectangular gap 70 between itself and the frame 2 by forming an undulating portion by bending the upper long side of the rectangular plate 30 constituting the auxiliary step 3 in a direction away from the frame 2. By forming the tip of the shoe in the gap 70, it is possible to easily hang the foot on the auxiliary step 3 and swing it.

The auxiliary step mounting structure in the industrial vehicle of the first embodiment having the above-described structure is such that when a short operator or the like who needs the auxiliary step 3 gets on or off, the urging force of the coil spring 5 causes the inside of the mudguard M to move. Insertion part 7 formed on the upper part of the auxiliary step 3 housed vertically
The shoe is inserted into and the leg is hung, the auxiliary step 3 is swung about the swing pin 4, and the protrusion 60 of the locking portion 6 is locked to the lower portion 2D of the frame 2 and maintained in a horizontal state. You put your foot on the upper surface of auxiliary step 3 and get on and off,
When the foot is released from the auxiliary step 3, the coil spring 5 automatically returns to the vertically stored state inside the mudguard M by the urging force of the coil spring 5.

The attachment structure of the auxiliary step of the first embodiment which has the above-mentioned operation has a simple structure and the auxiliary step 3
This makes it easy for a short operator to get on and off the forklift FL, and when the auxiliary step 3 is unnecessary, the coil spring 5 automatically stores the forklift FL in the mudguard M, so that it does not hinder other operators from getting on and off. Thus, there is an effect that there is no possibility of disturbing other objects during the work.

In the attachment structure of the auxiliary step in the industrial vehicle of the first embodiment having the above-described operation, the insertion portion 7 is formed at the center of the upper portion of the auxiliary step 3 and the substantially rectangular gap 70 is formed between the auxiliary step 3 and the frame 2. Therefore, by inserting shoes into the gap 70, it is possible to easily and quickly put the foot on the auxiliary step 3.

(Second Embodiment) The mounting structure of the auxiliary step in the industrial vehicle of the second embodiment is the embodiment of the first to third inventions, and the mounting of the auxiliary step requires a structural change on the industrial vehicle side. Minimize.

The mounting structure of the auxiliary step in the industrial vehicle of the second embodiment is formed on the frame 2 on one surface of the left and right upper and lower members 8L, 8R of the U-shaped base 8 as shown in FIGS. Two h-shaped engaging portions 81 to be inserted into the holes 2A are provided, and two bearing pipes 82 are integrally welded slightly inside both ends of the horizontal portion 8H. The bearing pipe 35 integrally welded to the center of the lower end of the auxiliary step 3 having the insertion portion 7 forming the semicircular gap 72 between the individual bearing pipes 82 is inserted, and the other configuration is The description is omitted because it is the same as that of the first embodiment.

That is, the mounting structure of the auxiliary step in the industrial vehicle of the second embodiment is the hole 2A formed in the frame 2.
The auxiliary step 3 is configured to be swingably supported by a swing pin 4 with respect to a U-shaped base portion 8 which is detachably attached.

The auxiliary step mounting structure in the industrial vehicle of the second embodiment having the above-described structure has the same effects as the first embodiment, and a short operator or the like who needs the auxiliary step 3 gets on and off. In the case of doing so, the locking portion 81 of the base portion 8 is inserted into the hole 2A of the frame 2 and mounted, and when the auxiliary step 3 is replaced by an operator who does not need it, the engagement of the base portion 8 which swingably supports the auxiliary step 3 is performed. If the stopper 81 is pulled out from the hole 2A of the frame 2 and removed, there is nothing protruding from the frame 2, so that the operator who substitutes does not have to pay attention to the existence of the auxiliary step.

The auxiliary step mounting structure in the industrial vehicle of the second embodiment having the above-described structure has a simple structure of the auxiliary step 3 and the base portion 8, and the frame 2 is simply provided with the hole 2.
Since it is only necessary to form four A, the process for using the auxiliary step 3 is simple and minimal, and the insertion portion 7 has a semicircular gap, so the area of the flat part of the auxiliary step is small. Has the effect of being large.

The embodiments described above are merely examples for the purpose of explanation, and the present invention is not limited to them. Those skilled in the art will recognize from the claims, the detailed description of the invention and the description of the drawings. Modifications and additions can be made without departing from the technical idea of the present invention.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a mounting structure of an auxiliary step according to a first embodiment of the present invention.

FIG. 2 is a front view showing a mounting structure of an auxiliary step of the first embodiment.

FIG. 3 is a sectional view showing a stored state of an auxiliary step of the first embodiment.

FIG. 4 is a sectional view showing a horizontal state of an auxiliary step of the first embodiment.

FIG. 5 is a side view showing a forklift truck to which the first embodiment is applied.

FIG. 6 is a perspective view showing a mounting structure of an auxiliary step according to a second embodiment of the present invention.

FIG. 7 is a sectional view showing a state before attachment of an auxiliary step of the second embodiment.

FIG. 8 is a cross-sectional view showing a usage state after mounting the auxiliary step of the second embodiment.

FIG. 9 is a cross-sectional view showing a conventional fixed auxiliary step.

[Explanation of symbols]

 1 step 2 frame 3 auxiliary step 4 swing pin 5 coil spring 6 locking part 7 insertion part 8 base 30 metal plate 22, 31 bearing pipe 50 coil spring 60 protrusion 70 gap M mudguard 81 locking part

Claims (3)

[Claims] 1. An auxiliary step composed of a plate-like member that is swingably disposed on a side wall portion below a step formed on a body of an industrial vehicle, and one end of the auxiliary step is shaken with respect to the side wall portion of the body. A swing pin that movably locks, a spring that locks to the auxiliary step and biases it to keep the auxiliary step in a vertical position when it is not used, and an auxiliary step when the foot is put on the auxiliary step. A mounting structure for an auxiliary step in an industrial vehicle, which comprises a locking portion that maintains a horizontal state. 2. The auxiliary step according to claim 1, wherein when the auxiliary step is in a vertical state, it projects laterally to form a gap between the side wall of the body and the auxiliary step, and the shoe is inserted to easily swing the auxiliary step. A mounting structure for an auxiliary step in an industrial vehicle, which is characterized by adding an insertion portion that is movable. 3. A base portion for swingably supporting the auxiliary step by a swing pin according to claim 2, and the base portion is detachably engaged with a side wall portion below the step of the body. A mounting structure for an auxiliary step in an industrial vehicle, comprising: