JPH0911797A - Ladder with fixing means - Google Patents

Abstract

PURPOSE: To set a ladder at a favorable point selected by mounting a fixing means to one end part of the ladder, and preparing the ladder provided with each stop board at more than one place. CONSTITUTION: When the ladder 10 with a fixing means 12 is used, the fixing means 12 is hanged over a side board 4 enclosing the load carrying platform 2 of a vehicle so as to allow the ladder to be mounted. Since a protection board 15 and a friction board 26 are installed onto the inside of the fixing means 12 and the tip end of the step board 25 respectivley, even if the ladder is hit against the side board 4, there in no fear of impairing the side board. In addition, since a rubber board 26 behaves an antislipping action, the ladder 10 can thereby be firmly carried by the vehicle. Besides, each step boards can be used with either side of the ladder selected while the height of the load carrying platform 2 is taken into consideration, and a mounting position is changed so that an operator may climb the ladder up and down. And when the side board 4 is rotated so as to be dropped downward below the load carrying platform 2, the ladder can be used by hanging up the fixing means 12 to a gap between the circumference of the load carrying platform and the side board 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ladder with a hooking means which is improved so that it can be easily moved up and down from the ground by using a removable ladder on the bed of a freight transport vehicle.

[0002]

2. Description of the Related Art Freight vehicles often have the opportunity to climb onto the platform for unloading and other reasons. Therefore, in a vehicle equipped with a fixed lifting means around the driver's cab, it is necessary to use it or climb a cargo bed with a tire or the like as a foothold.

[0003]

A large-sized automobile has a high cargo bed position, and it is difficult to move up and down. Despite the high necessity of raising and lowering the luggage carrier of automobiles, there is a drawback that no one can easily climb up. Loading and unloading of luggage can be done at a convenient place or position with respect to the loading platform to improve work efficiency, but when using a fixed lifting mechanism, it must always go through the ladder provided. There was a drawback. This is because the more baggage there is, the more unnecessary movement is required,
This caused deterioration of work efficiency and fatigue. The present invention has been made to solve such a problem,
An object of the present invention is to provide a ladder with a hooking means which can be easily lifted and lowered from a convenient position by being hooked on a part of a cargo bed.

[0004]

In order to solve the above problems, the present invention has the following configuration. The ladder with the hooking means according to the first aspect is provided with a hooking means that can be hooked and attached while taking measures to prevent adhesion of scratches in the U-shaped groove shape. A ladder with a hooking means was obtained by attaching this hooking means to one end of a ladder having at least one tread plate. The ladder with hooking means according to claim 2 is
There is provided a hooking means for hooking one side of the U-shaped groove, which is brought into contact with an end of a frame plate serving as a mounting body. A pair of rods are arranged apart from each other on the other side of the bent curved surface of the hooking means which is different from the one side of the bent contact side. A ladder with a hooking means is provided between the rods by projecting to the frame plate side, abutting the tip end of the frame plate against the frame plate, and disposing a tread plate on which the foot can be placed so that a foot can be placed. did.

[0005]

Since the ladder provided with the hooking means can be easily attached to and detached from the frame plate surrounding the periphery of the luggage carrier, the ladder can be attached by selecting a convenient position when raising and lowering the load. Further, according to the ladder with the hooking means described in claim 2, since the front and back surfaces of the frame plate are mounted so as to be sandwiched by only being hooked on the frame plate of the loading platform, the ladder which does not move during use and is reliable. Can be installed.

[0006]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a ladder with hooking means of the present invention, and FIG. 2 is an exploded perspective view of a main part of FIG. As shown in FIG. 1, a ladder 10 with a hooking means of the present invention has a hooking means 12 that can be hooked and attached to a frame plate of a vehicle, and the hooking means is arranged at one end thereof. , A ladder 20 provided with a step plate 25 for raising and lowering. The hooking means 12 and the ladder 20 will be described in more detail. Latching means 1
As shown in FIG. 2, reference numeral 2 includes a bar-shaped horizontal bar 13 mounted between a pair of bar bodies 22 forming a ladder 20, and plate-shaped hooking pieces 14 arranged at both ends of the horizontal bar. The hooking piece and the rod body 22 forming the ladder 20 are arranged so as to sandwich the horizontal rail 13, and are attached by means such as welding. The hooking means 12 is formed in a U-shape by the hooking piece 14, the cross rail 13 and the ends of the rod body 22, and the U-shape is hooked on a frame plate of a loading platform provided on the vehicle. To use. A protective plate 15 made of a dust plate or the like is provided on the U-shaped inner wall surface as a measure for preventing scratches when it is attached to a vehicle.

As shown in FIG. 2, the ladder 20 is disposed between a pair of rods 22 spaced apart from each other, and is provided with a stopper 24 formed of an L-shaped angle, and a lifting / lowering arrangement provided on the stopper 24. And a tread 25. A rotating shaft 28 made of a cylindrical protrusion is provided on one end side of both side walls of the tread plate, and the tread plate 2 is inserted into a hole 29 provided in the rod body 22.
5 is attached so as to rotate in the direction indicated by the arrow in FIG. The rotary shaft 28 is arranged at one end side of the tread plate 25, and can be used in a state where the back surface side of the tread plate is in contact with the stopper 24. The tread 25 is a stopper 24
It is arranged so that it projects further from the side, and when not in use
As shown on the upper side, the stowage posture can be made smaller by rotating the treads and setting them in a jumped-up state. Further, a friction plate 26 made of a dust plate or the like is provided on the upper surface of the tread plate 25 and the tip wall surface on the side where the rotary shaft 28 is arranged to prevent slipping when moving up and down and prevent adhesion of scratches to the vehicle. .

The ladder 10 with the hooking means constructed as described above
An example of use of will be described with reference to the drawings. FIG. 3 is a diagram for explaining the use of FIG. As shown in FIG. 3, in order to use the ladder 10 with the hooking means of the present invention, the hooking means 12 is hooked and attached to the top of the frame plate 4 surrounding the loading platform 2 of the vehicle.
Since the protection plate 15 is attached to the inside of the hooking means and the friction plate 26, which is a dust plate, is attached to the tip of the step plate 25, even if it comes into contact with the frame plate 4, it is not damaged. . Further, since the dust board not only has the function of preventing scratches but also the function of preventing slippage, the ladder can be firmly supported by the vehicle. After mounting in this way, it is moved up and down using the tread. It is possible to select and use only one of these treads, considering the height of the platform, by moving the mounting position,
It can be lifted and lowered at a place convenient for work. Further, in a state where the frame plate 4 is rotated and hung down below the luggage carrier, a locking means can be hooked and used in a gap between the periphery of the luggage carrier and the frame plate 4.

Another embodiment of the present invention will be described with reference to the drawings. FIG. 4 is a perspective view of a ladder with hooking means showing another example of the present invention, and FIG. 5 is an exploded perspective view showing the state of FIG. 4 viewed from the back side. As shown in FIG. 4, a ladder 30 with a hooking means shown in another example of the present invention is a hooking means 32 that can be hooked on a frame plate surrounding a cargo bed of a vehicle, and this hooking means at the top thereof. The ladder 40 is provided with the tip of the tread 45 protruding toward the hooking means. The hooking means 32 and the ladder 40 will be described in more detail. As shown in FIG. 5, the hooking means 32 is composed of a grooved bar 33 having a U-shaped cross section, and one bent surface serves as a hooking piece 34 for hooking, and the inside thereof has scratches and slips. A protective plate 35 for prevention is attached. The protection plate 35 is made of a dust plate or the like, and has an L-shaped portion on the bottom surface of the groove bar 33 and the hooking piece 34.
It is attached in a letter shape, and the portion of the protective plate is brought into contact with the top of the frame plate of the luggage carrier for hooking.

The ladder 40 is fixed to the hooking means 32 in the same manner as in the example of FIG. 1, and comprises a first ladder 42 and a second ladder 50 which can be accommodated in the first ladder 42. The first ladder is composed of a pair of square pipes 43 arranged apart from each other, and a tread plate 45 connected to one ends thereof. A hole 44 is provided at the top of the square pipe, and is used as a part of the positioning means when the second ladder 50 is accommodated by using this hole. Tread 45
As in the example of FIG. 1, the friction plates 46 are attached to the upper surface and the wall surface at the tip. This tread plate does not rotate as in the example of FIG. 1, but is attached in a state of being fixed to the square pipe 43.
The whole is arranged so as to project to the attachment side of the hooking means 32. Like the first ladder 42, the second ladder 50 has a configuration including a slide pipe 51 made of a rectangular pipe and a tread 55, but the slide pipe 51 is the same as the first ladder 42. The pipe 43 is slidably moved, and the state as shown in FIG. 4 is maintained so that the pipe 43 does not fall out. A protrusion as a positioning means 52 is provided on the top side of the slide pipe 51, and the slide pipe 5 is accommodated in the first ladder 42.
It is set so that the slide pipe does not fall out when it is pulled into the inside of the device 1 and coincides with the hole 44. That is, the protrusion as the positioning means 52 has a spherical tip and is provided so as to be capable of projecting and retracting, and is moved when the second ladder 50 is housed in the first ladder 42. It is a preventive measure.

The ladder 30 with the hooking means constructed as described above
An example of use of will be described with reference to the drawings. FIG. 6 is an explanatory diagram showing a usage example of FIG. As shown in FIG. 6, the ladder 30 with the hooking means is used by hooking the hooking means 32 on the top of the frame plate 4 surrounding the platform 2 of the vehicle as in the example of FIG.
In the example of FIG. 1, the U-shaped hooking means 12 as a whole is hooked so as to sandwich the top of the frame plate 4, but the hooking means 32 shown in another example of the present invention is as shown by A in the figure. The locking piece 34 is the frame plate 4
While being brought into close contact with the loading platform side, the outer side of the frame plate 4 is brought into an attached state when the tip end of the tread plate 45 comes into contact with it, as indicated by B in the figure. This is A and B separated from each other,
Since the frame plate 4 is abutted so as to sandwich it, even if the thickness of the frame plate varies depending on the vehicle model, if the groove width of the groove bars 33 is set wide, the frame plate can be mounted corresponding to any thickness. Not only that, but the more the person rides on the tread and the more the load is applied, the more securely the ladder can be attached. When the height of the loading platform is lower than the ground, only the tread plate 45 provided on the first ladder 42 is used. On the contrary, when the height is high, the second ladder 50 is pulled out as shown by the dotted line in the figure to tread plate. 55 is also used to move up and down. After use, as shown by the solid line in FIG. 6, the second ladder 50
By slidably moving, the whole can be miniaturized and can be carried or housed.

[0012]

As described above, according to the present invention, the following effects can be obtained by providing the removable ladder on the bed of the vehicle. In other words, when loading and unloading, it is possible to select the most convenient position and move up and down, which greatly improves work efficiency. The ladder can be attached simply by hooking it on the frame plate around the cargo bed, and can be easily removed. Further, since the ladder is small, it is possible to obtain effects such as easy handling and storage when not in use.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a ladder with hooking means of the present invention.

FIG. 2 is an exploded perspective view of a main part of FIG.

FIG. 3 is an explanatory diagram showing a usage example of FIG. 1;

FIG. 4 is a perspective view showing another example of the ladder with hooking means of the present invention.

FIG. 5 is an exploded perspective view showing a state in which FIG. 4 is disassembled when viewed from the back surface side.

FIG. 6 is an explanatory diagram showing a usage example of FIG. 4;

[Explanation of symbols]

 10 Ladder with latching means 12 Latching means 14 Latching piece 15 Protective plate 20 Ladder 25 Tread plate 26 Friction plate 30 Ladder with latching means 32 Latching means 34 Latching piece 35 Protective plate 40 Ladder 42 First ladder 43 Square Pipe 45 Tread 50 Second Ladder 51 Slide Pipe 55 Tread

Claims (2)

[Claims] 1. A hooking means for forming a groove shape bent in a U-shape, providing a measure for preventing adhesion of scratches in the groove shape, and hooking and mounting the end surface of a mounting body to be mounted. A ladder with hooking means, comprising: a ladder having the hooking means attached to one end thereof and provided with at least one tread plate. 2. A hooking means for forming a groove shape bent in a U-shape, and hooking the bent inner surface by abutting against an end of a mounting body to be mounted, and the hooking means. On the other facing surface side that does not come into contact with the mounting body, a pair of rod bodies are provided apart from each other,
A ladder with hooking means, characterized in that between the rods, there is a ladder provided with a step plate having a tip projecting toward the hooking means and having its tip end contact the mounting body. .