JPH0616089A - Step for truck deck - Google Patents

Abstract

PURPOSE:To provide a step for truck deck installed to the outer side of the gate plate of a truck load carrying deck, which is provided to carry out the loading work into the deck, the unloading work from the platform, the adjusting work in the platform, or the like, without lowering the gate plates surrounding the truck platform. CONSTITUTION:This step for truck platform consists of a tread member 1 a footboard 11 is laid, and a rise member 2 rising vertical to the tread member 1, and a receiver roller 5 is provided to the adequate position at the lower end side of the rise member 2 almost horizontally, while a holder roller 3 is installed to the upper end of the rise member 2.

Description

Detailed Description of the Invention

[0001]

It is an object of the present invention to carry out a work of loading a cargo in the cargo bed or to unload the loaded cargo from the cargo bed while keeping the tilt plate surrounding the outside of the truck cargo bed as it is without tilting it. It is intended to provide a truck carrier step having a novel structure which is detachably and laterally attached to the outer side of the tilt plate of the truck carrier for repair work.

[0002]

[Background Art] In the midst of increasing economic activity, goods can be efficiently distributed through various routes, and in various production activities,
The role played by the truck is extremely important in order to properly move the various materials required to carry out such work. Therefore, the number of trucks produced continues to increase day by day, and the performance of those trucks has made remarkable progress toward mass transportation and high-speed transportation, and their driving operation and habitability are comparable to those of passenger cars. However, even trucks in such a situation are not yet involved in the cargo handling work, that is, the work of loading various goods on the truck bed, organizing the loaded cargo, or unloading those goods at the destination. There is a problem that is overlooked as it is solved.

Usually, in a trucking company specialized in transportation, a large-scale manufacturer, a company which has to carry out a special work, etc., a special vehicle suitable for the purpose, for example, a truck to which a crane is attached or a truck with a cargo is mounted. , Own trucks with various loading and unloading equipment such as trucks with built-in elevators at the rear of the loading platform, adopt trailer trucks, and handle materials collectively by containers, or loading and unloading sites A lift truck is prepared for each pallet, and the pallets are used to load and unload the materials placed on the pallets to simplify the cargo handling work.

However, compared with trucks used with special consideration for the cargo handling work, trucks used under other circumstances, such as medium- and small-sized trucks and light trucks often used in shops and farmers. In most cases, you are forced to work in the relationship with the tilt plate, which is indispensable for loading luggage, and you can not knock down the tilt plate, or when it is troublesome to tilt one by one, etc. Must ride on the upper edge of the tilt plate and carry out work in preparation for danger. This work is not only unstable and dangerous, but also the fact that the truck bed itself is at a certain height from the ground makes it considerably difficult to get on the upper end of the tilt plate from the outside.

Therefore, the applicant of the present application succeeded in realizing a step consisting of several constitutions which can be detachably attached to the outside of the tilt plate as required. The present invention has improved those steps and has been devised so as to further facilitate the work of loading and unloading the truck bed performed on the outside of the tilt plate, and has a configuration as described in detail below. It is a thing.

[0006]

As can be clearly understood from the embodiments of the present invention shown in the drawings, the truck bed steps of the present invention basically have the following construction. That is, it is composed of a tread member 1 on which a tread 11 having a predetermined width is bridged, and a lift member 2 which rises vertically to one side edge of the tread member 1. At the upper end of the lift member 2, a truck carrier T is provided. A truck carrier T having a support roller 3 fitted and rolled at an upper end of the tilt plate D or a portion corresponding to the tilt plate D, and a receiving roller 5 projecting in a substantially horizontal direction at an appropriate position on the lower end side. This is a step for a truck carrier that is attached to the outside of the tilt plate D so as to be detachable and movable left and right.

The tread member 1 has a structure in which a tread plate 11 is integrally formed on the surface of a skeleton body as appropriate, or in some cases, a single plate body (including one in which a reinforcing member or the like is incorporated). For convenience of handling, the length is about 90 cm or 1 m, and it is sufficient to form the tread with an optimum depth, for example, about 20 to 30 cm. And the footboard 1
It is desirable that the surface of No. 1 is formed with an uneven processed portion for slip prevention, or has a structure in which a non-slip material or the like is laminated.

The kick-up member 2 is a member that is vertically provided on one side edge (a side edge that is deep in the depth direction) of the tread member 1, and is a rod-shaped member (at least two, combined in parallel). And a frame body, a plate body or the like having any suitable structure, and the riser member 2 can be horizontally held near the lower end thereof in any structure connected to the one side edge of the tread surface member 1. Does not matter. Then, it is desirable to attach an appropriate cushioning material, for example, a rubber piece 22 or the like, to the contact portion with the tilt plate D at an appropriate position on the tilt plate D side.

The support roller 3 is attached to the upper side of the riser member 2 and has a structure integrated with the riser member 2 by a fitting 4 as appropriate, and is fitted to the upper end of the tilt plate D or a portion corresponding thereto. In addition, the whole step body can be stably attached using the same place as a support part, and the upper end of the tilt plate D, or a part corresponding to it, can be used as a guide for rolling to move freely in the left-right direction. To get it.

The receiving roller 5 is substantially horizontal at a proper position below the riser member 2 (including the middle portion).
It is provided so as to project from the mounting bracket 6, and comes into contact with and rolls on the outer surface of the tilt plate D so that the lifting member 2 does not come into direct contact with the tilt plate D. In the step of the present invention of the structure in which the supporting roller 3 and the receiving roller 5 are fitted and supported on the tilt plate D,
There is a possibility that the worker may move to the left and right at the stage of using it, so a temporary fixing tool that temporarily stops those movements as needed (for example, a screw rod goes in and out of a vise type). Each roller 3, such as a metal fitting that allows the tilt plate D to be attached, or a snap piece or other known stopper as appropriate.
It is possible to employ an appropriate means such as using them separately from 5, or combining each roller 3, 5 with a simple brake mechanism.

In relation to the truck carrier step of the present invention basically constructed as described above, steps having the following configurations are also included in the truck carrier step of the present invention.

[Related invention 1] That is, it comprises a tread member 1 on which a tread plate 11 having a predetermined width is stretched, and a lift member 2 which rises vertically to one side edge of the tread member 1.
At the upper end of the supporting roller 3, which is fitted and rolled at the upper end of the tilt plate D of the truck carrier T or a portion corresponding to it.
At the appropriate position on the lower end side thereof, a receiving roller 5 is provided so as to project in a substantially horizontal direction, and either the supporting roller 3 or the receiving roller 5 or both of them have a contact position with respect to the tilt plate D. It is a step for a truck bed that is detachably attached to the outer side of the tilt plate D of the truck bed T and is movable left and right so as to be formed in a freely changeable structure.

The contact position changeable structure of the roller includes any structure capable of changing the contact position of the rollers 3, 5 with respect to the tilt plate D or a member corresponding thereto by applying a predetermined load to the step body. Therefore, in addition to the structure shown in the embodiment described below in which the spring material is directly used, the structure in which the spring material is combined with the gear, or the spring material is not used at all. In principle, a structure that adopts a mechanism such as an air suspension, or the simplest structure is that the entire roller or main part is elastic, such as soft rubber or soft plastics, pneumatic tube The structure is such that the contact position of this roller is changed by expanding and contracting the roller itself. Also embraced the invention.

Hereinafter, embodiments representative of the present invention based on the above-described basic structure will be specifically described with reference to the drawings.

[First Embodiment] First, a perspective view of a main part including a usage state of FIG.
The embodiment of FIG. 2 showing its side view is shown as the most preferable example of the present invention, in which the left and right movement of the step body is restricted, that is, the contact position of the roller can be freely changed. It is one example of steps embodied based on the configuration shown in the above-mentioned "Related Invention 1" in which the structure is incorporated in advance. It goes without saying that the steps embodied herein include the basic configuration of the present invention.

The step body comprises a pair of kicking members 2 and 2 made of steel pipe (one on the left side in the drawing) at both ends of one side edge of a tread member 1 having a steel plate having a slip groove formed on the surface thereof as a tread plate 11. The member 2 arranged in the vertical direction is omitted), and is connected and integrated so as to be substantially perpendicular to the footboard 11, and the downward facing "U" is provided around the upper ends of these raising members 2 and 2.
While the V-shaped mounting metal fitting 4 is welded, the two supporting rollers 3, 3 are orthogonal to each other inside the mounting metal fitting 4, and the supporting roller 3 on the side that is horizontally arranged is vertically arranged. It is arranged below the supporting roller 3 which becomes the above, and is attached so as to secure a space for fitting the upper end of the tilt plate D between the raising members 2 and 2.

On the other hand, in the vicinity of the connecting portion between the tread member 1 and the riser member 2, as shown in the side view shown in the partial cross section of FIG. On the other hand, the compression spring 61 is configured so as not to slip out inside, and is interposed between the base metal fitting 51 of the receiving roller 5 and the compression spring 61 is used as a contact position changeable portion of the roller. 5 is formed so that its position can be slightly moved in the horizontal direction.

The horizontal movement width of the receiving roller 5 is such that the receiving roller 5 maintains a posture in which it is projected from the kicking member 2 toward the tilt plate D in a state in which no load is applied to the step main body, and conversely the work is performed. In the case where a person or other load is applied, the receiving roller 5 is easily retracted so that a part of the kicking member 2 (the cushioning piece 22 in the example of the drawing) can be brought into close contact with the tilt plate D. Therefore, the mounting position of the mounting bracket 6, the strength of the compression spring 61, the combined structure, and the like must be regulated and formed in advance so as to realize these movement widths. In the figure, reference numeral 21 denotes a back plate that reinforces the pair of left and right kick-up members 2 and 2.

[0017]

[Embodiment 2] An embodiment embodied in a side view similar to that of FIG. 2 including a partial cross-section of the one showing the usage state is shown in FIG. This is an example of a structure in which the contact position changeable structure is incorporated. In this example, the contact position changeable structure of the roller is adopted on the support roller 3 side, and the contact position changeable structure of the roller is changed to another structure. It is a step shown in place of the example. Therefore, according to this example, it goes without saying that the structure in which the contact position of the supporting roller 3 can be freely changed is not limited to the structure illustrated here, as in the case of the first embodiment.

With respect to the step body composed of a substantially similar combination of the tread surface member 1 and the riser member 2 shown in the first embodiment, first, the receiving roller 5 is set to the tread surface member 1 and the riser member 2. Of the mounting member 6 such as an angle member so that the roller abutting portion thereof is located at a minimum protruding state so that the respective portions of the raising member 2 do not come into contact with the tilt plate D. Place horizontally.

On the other hand, the supporting roller 3 is attached with the "U" shaped elastic piece attached to the upper end of the riser member 2 as a mounting member 4 in such a manner that the roller contacting direction is directed obliquely inward, and the tilting plate is attached. The upper end of D is fitted to the corner of the rail member 7 attached as a member separate from the step body. The rail member 7 has a downwardly facing U-shaped portion that fits on the upper end of the tilt plate D, and a groove portion that fits the support roller 3 above the rail-shaped member D, which is formed of a single-piece steel member or the like. A fixing set screw 71 is provided in a required place, and the supporting roller 3 is detachably fitted and rolled from the rear end of the groove portion. A structure corresponding to the groove portion for fitting the supporting roller 3 above the rail member 7 is adopted as the upper end structure of the tilt plate D in the track manufacturing stage or the tilt plate D provided as an option in advance. If it can be done, naturally, it is not necessary to use the rail member 7 as a member corresponding to the upper end of the tilt plate D.

The supporting roller 3 is fitted into the rail member 7 in such a manner that when no load is applied to the step body other than its own weight, not only the kicking member 2 and the mounting member 4 but also the mounting member 4 is mounted. In order to prevent any part of the auxiliary member 23 attached to the upper end of the riser member 2 from attaching to the tilt plate D and the rail member 7 attached to the upper end of the auxiliary member 23, its combined arrangement structure is considered in advance. Once realized, when a load such as the weight of an operator is applied to the step body once, the mounting bracket 4 having the “<” shape is elastically deformed, and the step body moves slightly downward as a whole, and the auxiliary member 23 The buffer piece 22 formed on the lower surface is
The elastic strength of the mounting member 4 is set so as to contact the rail member 7.

In the above two embodiments, the structure in which the contact position of the roller can be changed is incorporated in only one of the receiving roller 5 and the supporting roller 3, but these are merely examples. Alternatively, it is of course possible to form the support roller 3 and the receiving roller 5 into a structure in which a roller contact position changeable structure is incorporated into both of the supporting roller 3 and the receiving roller 5 as a matter of course.
As for the structure of the step body including the raising member 2 and the raising member 2, it goes without saying that a step body having various structures already developed can be adopted in addition to the structure shown in the drawings. is there.

[0022]

[Operation] The truck bed step of the present invention having the above-described configuration requires, for example, when it is necessary to load materials into the truck bed T, when the loaded luggage is sorted out, and only necessary items are taken out. Or when you need to unload everything,
The support roller 3 is fitted directly to the upper end of the tilt plate D, or in the case of the structure as shown in the second embodiment, it is fitted to the rail member 7 previously attached to the upper end of the tilt plate D. Then, the truck platform T is moved left and right to a position suitable for work.

This method of moving left and right is before work,
If the worker is still on the ground, he / she may guide it by his / her own hand. If the worker is already on the step board 11 of the step body and working, In order to remove the weight of the stepper, get off on the ground and guide it by hand as described above, or once move to the position not related to the step body at the upper end of the tilt plate D, and then use the foot to attach the mounting bracket 4 or the raising member 2 Operate around the upper end to guide.

After moving to the optimum position, an operator or an auxiliary operator rides on the tread plate 11 of the tread member 1 to perform the intended work. At that time, if a temporary fixing tool for the tilt plate D is incorporated in advance, the mechanism should be operated before starting the work to temporarily fix the left and right movement of the step. On the other hand, if the contact position changeable structure is incorporated in each roller of the supporting roller 3 or the receiving roller 5 as in the configuration shown in each of the embodiments, the weight of the step body or other load is not applied. At the stage of being applied, the roller contact position changeable structure naturally operates, and some part of the step body comes into contact with the tilt plate D or a portion corresponding thereto, and the frictional resistance of the contact portion causes the rollers 3, 5 Exerts a braking effect on the movement of the step, and at least while the worker or the auxiliary worker applies weight on the step board 11 of the step body, the left and right movements of the step are blocked, especially when carrying a luggage. The heavier the load, the greater the blocking effect.

[0025]

[Effects] Therefore, in the truck bed step of the present invention, no special device is incorporated in the truck bed T outside the tilt plate D, so that the loading and unloading of goods, the arrangement and loading of goods There is no particularly effective means when it is necessary to take out only the desired one from among the above, and the operator is forced to go up to the upper end of the tilt plate D and carry out work under unstable scaffolding conditions. For example, it is possible to easily combine and use it with a medium- or small-sized truck or a light truck that is often used in shops or farms.

In particular, in the case of the steps of the construction shown in the embodiment, after fitting the outside of the tilt plate D, the provisional command and the step plate 11
Even while riding on the work surface, it is possible to move the position freely and smoothly by using the simple behavior of appropriately removing the weight and other loads, and to use it safely. The person is no different from the step which is fixed and used in advance, and the stable work is guaranteed to be performed safely. In the case of the structure shown in the first embodiment, it is possible to make the structure more advantageous than the one shown in the second embodiment in terms of the safety against the load applied to the step body, and it is not necessary to use any member other than the step body. The second embodiment has a feature that it can be directly combined with the tilt plate D. On the other hand, in the second embodiment, although the rail member 7 is required, the mounting structure of each roller 3, 5 to the step body is simple. Each has its own unique characteristics.

As described above, the truck bed step of the present invention has a relatively simple structure and is much easier to handle.
It is possible to provide it as a lightweight and inexpensive product, and greatly reduces the work content for workers engaged in work using trucks such as shops and farmers who are forced to do hard work in a disadvantaged environment. It is expected to be effective.

[Brief description of drawings]

The drawings show several embodiments that are representative of the invention.

FIG. 1 is a perspective view of a main part including a partial cross section showing a usage state.

FIG. 2 is a side view including a partial cross section of the same as the above.

FIG. 3 is a side view similar to FIG. 2, but according to another embodiment.

[Explanation of symbols]

 1 tread surface member 11 same tread plate 2 riser member 21 same back plate 22 same buffer piece 23 same auxiliary member 3 support roller 4 mounting metal fitting 5 receiving roller 51 same base metal fitting 6 mounting metal fitting 61 same compression spring 7 rail member 71 same locking screw D Tilt board T truck carrier

Claims (2)

[Claims] 1. A tread plate member having a tread plate of a predetermined width and a kicking member that rises vertically to one side edge of the tread plate member. Mating at the upper end or its equivalent,
A step for a truck bed that attaches a rolling support roller and a receiving roller that protrudes in a substantially horizontal direction at an appropriate position on the lower end side of the truck bed so as to be detachably attached to the outside of the tilt plate of the truck bed and can be moved left and right. . 2. A tread member having a tread plate of a predetermined width stretched over it, and a lift member that rises vertically to one side edge of the tread member, and the upper end of the lift member has a tilt of a truck bed. A supporting roller that fits and rolls at the upper end of the plate or its equivalent is attached, and at the appropriate place on the lower end side, a receiving roller is projected in a substantially horizontal direction, and either the supporting roller or the receiving roller is installed. , Or both, the position of the roller abutting portion with respect to the tilt plate or a portion equivalent thereto is formed to be changeable.
A step for a truck bed that is detachably attached to the outside of the tilt plate of the truck bed and can be moved left and right.