Supports – Armrest or headrest – Armrest for writer
Patent
1989-12-06
1991-12-24
Ramirez, Ramon O.
Supports
Armrest or headrest
Armrest for writer
2482811, B43L 1500
Patent
active
050745018
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention relates to a device for supporting the hand. The device is mounted on a base, preferably on the edge of a table. The device includes a detachably fastened mounting element, rotatably fastened to a lengthy shaft, which is rotatably fastened to a support for the hand.
In working positions, where the arms must be held bent or in some other tense position for a period of time, muscular pains often arise in different muscles. Shoulder and back pain are especially common among those who perform such working tasks as for instance, typing, data processing, or ordinary handwriting. The problem results in occupational diseases and absences from work.
Presently, some hand supports are known which are aimed at giving support to the hands when they are tense in different working tasks. The present devices are, however, difficult to adjust for different persons, and their transverse and height adjustment is not sufficient in cases where the device is used for different working tasks and by different users.
SUMMARY OF THE INVENTION
The purpose of the invention is to bring about a device for supporting the hand which is easy and simple to adjust to a desired position, and which is dependable an operation.
The purpose of the invention is achieved with a device characterized mainly by that which is presented in the patent claims.
According to the invention, the device includes two mainly parallel regulation arms spaced a distance from each other, which are connected at one end with a turning part fastened to a mounting element by a shaft and connected at another end with a support part. The support height can be adjusted by moving the regulation arms in regard to the mounting element. The support retains the whole time in the same attitude during the height adjustment operation.
In a preferred embodiment, a locking mechanism for locking the regulation arms at a desired height is provided. The locking mechanism can be any suitably known device such as a screw or the like. Thus, the motion of the regulation arms is limited and the support is adjusted to the chosen height.
The support side arms of the regulation arms of the device are, in a preferred embodiment, connected to a separate support part, which is in turn, rotatably fastened to a support arm. In this embodiment, the support height can be adjusted in relation to the base by the regulation arms. The horizontal positioning of the support can be adjusted by the turning part and the support arm to various positions in accordance with the needs of the user.
The invention will now be explained in more detail by referring to the attached drawings, which presents one embodiment of the device for supporting the hand in accordance with the invention, as seen from the side.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of a device in accordance with the invention in its lower position; and
FIG. 2 is a perspective view of the device in accordance with the invention in its upper position.
DETAILED DESCRIPTION OF THE INVENTION
The embodiment of the device shown in the figures comprises a mounting element 1 for fastening the device to a base. The base used depends on the application of the device. Most commonly, the device is fastened to the edge of a table or to a corresponding object, the mounting element 1 includes a regulating system for adjustment of the height of a shaft of the device in regard to the mounting element 1. The regulating system is formed by tooth edges 10 of two parts 15 and 16 which are placed against each other and fastened together by a fixing screw 11. By means of the tooth edges 10, the mounted element 1 can be suitable preadjusted for different thicknesses of bases prior to fastening the device. The mounting element further comprises a clamping screw 12 fastened to the formed protruding part 15. The corresponding formed protruding part 16 extends in the same direction as protruding part 15. The mounting element 1 is fastened to the base by placing the mounting element 1 such that the edge of
REFERENCES:
patent: 389053 (1888-09-01), Brown
patent: 2424222 (1947-07-01), Brown et al.
patent: 3124328 (1964-03-01), Kortsch
patent: 3929309 (1975-12-01), De Vore
patent: 4470106 (1984-09-01), Norton
patent: 4592526 (1986-06-01), Kobelt
Ramirez Ramon O.
Silin Metalli KY
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