DK9300413U3 - Work tools for forward bending positions - Google Patents

Description

DK 93 00413 U3

Utility model registration of work tools for forward bending / working positions.

Denominations.

Work tools for forward bending positions. Scope of production.

This creation relates to a working tool for relieving a person's back at bent-over postures.

The work tool is provided with a lower part and an upper part which are placed under and above the workpiece with which the operator is working and working. The work tool is of the type where the operator leans over the tool and supports the work tool with the chest.

The tool is also made up of a base, a stand, a tool tray and a platform.

Glossary.

The term stand is used for the connection between the lower part and the upper part of this type of work tool. The word standpipe is used to refer to the pipe used as a stand on the new working tool described in this utility model registration.

The term platform is used for the cushion or seat on which the operator supports the chest.

The term work item is used for the subject being worked on and the work tool is placed above / below. This can be done, for example. be a car.

Prior art.

Work tools for forward-bending positions are previously described in United States Patents 4,863,178 4,397,374 and 2,701,168. With these tools, the stand is raised directly below the platform on which the operator supports the chest.

Patent Application No. 1713/91 - Ml describes a working tool where the platform is suspended on the side of the tool tray. The stand on this work tool is located on the opposite side of the tool tray relative to the platform. The stand on this work tool consists of two legs, located on the same side, but at each end of the tool tray.

The technical problem to be solved

The known working tools are somewhat inconvenient in use, as they push hard against the operator's stomach if he wants to get the hip all the way into the subject being worked on. The pressure on the operator's abdomen and diaphragm seems to inhibit his breathing.

The working tool described in patent application No. 1713/91 is somewhat inappropriate in use, since the working tool must be able to be placed under / over two mutually perpendicular sides of the workpiece simultaneously. This makes the tool difficult to use.

With the creation, it is desired to provide a working tool for forward-bending work positions. It is designed so that the platform only presses against the operator's chest when it has the hip inside the workpiece.

Likewise, the work equipment must be so constructed that no part other than the platform presses against the operator's body, arms or legs, or otherwise acts as a nuisance under normal use.

Likewise, the work tool must be so designed that only one side of the workpiece is required free access.

The base must be able to be mounted with wheels and be designed so that it can be positioned appropriately in relation to the workpiece.

The stand shall consist of a single standpipe.

The platform must be displaced relative to the standpipe so that it is positioned next to the operator when it supports the platform.

The platform must be able to be adjusted in height with respect to the lower part in such a way that they cannot rotate relative to one another around a vertical axis.

The angle of the platform with respect to the horizontal, regardless of the height adjustment, must be able to be changed around an axis that is transverse to the operator's chest.

The platform must be swiveled backwards so that it hangs down along the standpipe.

The tool tray must be so designed that it can swing at least 90 degrees to each side about a vertical axis relative to the center position, which is adjacent to the operator and parallel to its body.

The nve technique.

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What is new about the production is that the working tool is equipped with the following individual parts.

On the lower part is attached a stirrup in which the operator places the front of his feet.

The stand consists of a single tube extending from the base to the bottom of the tool tray.

The tool tray is attached at one end to the upper end of the stand tube so that it can rotate about a vertical axis.

A shaft pin at the bottom of the tool tray goes down at the top of the 3 DK 93 00413 U3 standpipe.

A support arm enters the side of the standpipe into an assembly that can be rotated and fixed at a desired angle. This support arm displaces the platform in relation to standpipes and tool trays.

The angle adjustment mechanism between support arm and stand tube is made up of an adjusting screw, bushing and shaft. A groove is milled in the cylindrical surface of the shaft. This groove starts at one end of the shaft as an axial groove, which goes into a circular groove and eventually ends up in a circular groove with a large axial pitch, in principle a thread groove. In the bush is a pin that goes up the milled groove in the shaft. The adjusting screw is screwed into the bush at the opposite end of the shaft.

The platform is so suspended on the support arm that its angle relative to the support arm can be varied.

The technical impact.

By applying the above-mentioned technique in connection with the forward-bending posture, a complete relief of the back is obtained, without the operator being in any way bothered by the working tool.

At the same time, you get a compact work tool that is easy to set up for each work process.

The design of the base makes it compact and easy to position in relation to the workpiece (eg a car).

The simple construction of the standpipe makes the working tool very flexible in terms of placement in relation to the workpiece.

The tool tray is located adjacent to the operator's body in such a way that the tool tray around a vertical axis located adjacent to the operator's hip can swing at least 90 degrees to each side. Also, the tool tray can be completely removed so that the tool can be used without the tool tray.

The support arm displaces the platform with respect to standpipes and tool trays (in a horizontal plane) such that only the lower part is located there under the workpiece and the platform located under the operator. The operator thus has a high degree of free movement.

The angle adjustment mechanism between standpipes and support arms allows the platform located at the opposite end of the support arm to be height-adjustable steplessly. The mechanism also allows the support arm and platform to be tilted backwards and hung down along the standpipe or completely removed.

The angle of the platform relative to the horizontal can be changed independently of the height adjustment.

4 DK 93 00413 U3

List of Figures.

Figure 1

Shows a working tool for forward-bending postures according to the prior art.

Figure 2

Displays the working tool according to the manufacture with its individual parts: bottom frame A, stirrup B, standpipe C, tool tray D, support arm E, platform F.

Figure 3

Displays the operator's location on the work tool according to the generation.

Figure 4

Displays the height adjustment mechanism of the platform according to the invention.

Figure 5

Shows how the support arm can be swiveled backwards and pulled outward of the stand pipe according to the production.

Figure 6

Shows the structure of the tool tray, which consists of a shaft pin K, a wooden plate L and a rubber strip M according to the invention.

Example embodiments.

Figure 1 shows a working tool for forward-bending postures according to the prior art. The platform of the work tool pushes hard against the operator's stomach, making it difficult to breathe.

Figure 2 shows a working tool for forward bending positions according to the production.

As can be seen, the lower part A is designed so that the working tool can be positioned as smoothly as possible in relation to the workpiece. In the illustrated embodiment, the lower part is U-shaped, but it can also have other designs, depending on what is most appropriate in relation to the working situation concerned.

The stirrup B is located where the operator has his feet.

The stand pipe is designed as a single fixed pipe extending from one of the corners of the base and up under the tool tray.

As can be seen, the platform F is displaced by the support arm E relative to the standpipe C and the tool tray D.

Figure 3 shows the operator's position on the work implement according to the production.

As you can see, the operator has the front of his feet inside

Claims (5)

1. Work tool for forward-bending working positions, consisting of (Fig. 1) one lower part A, a stirrup B, a standpipe C, a tool tray D, a support arm E and a platform F, which is new in that (the working structure's bearing structure is designed so) the platform is carried by an arm which (Figure 2) descends along the body of the operator and horizontally out to the side, where it is attached to the standpipe, thereby ensuring a free working space under the operator and ensuring free movement of both operators. arms. % ' 2. Work tool for forward-bending postures which is new in that a stirrup is placed with the tread just above the floor, so that the operator can place the front part of his feet in stirrup B while having heels in direct contact with the floor. Work tool for forward bending positions according to claim 1, which is new in that the stand between lower part and upper part is constituted by a single fixed stand pipe. Work tool for forward bending positions according to claim 1, which is new in that the height adjustment of the platform is carried out by adjusting the angle between support arm E and standpipe C. Work tool for forward bending positions according to claims 1 and 4, which is new in that angular adjustment between standpipe C and support arm E takes place by axial displacement of a shaft with a threaded groove (according to Fig. 3) in a bushing in which there is a pin, which goes up this thread.