DEVICE FOR SUPPORTING OF THE HAND

Abstract: Object of the invention is a device for supporting of the hand, to which device belongs an on a base detachably fastened mounting element (1), on the mounting element turnably fastened lengthy shaft (2) and on the shaft turnable fastened support for the hand. The present supports for the hand are troublesome to adjust simultaneously in the length and height direction. To the device in accordance with the invention belong two mainly parallel, at a distance from each other placed regulation arms (4), which from their one end are joint connected with the to the mounting element fastened turning part (5) of the shaft and from their other end are joint connected with the support side part (6) of the shaft, whereat the support is adjustable in the height direction by moving the regulation arms in regard of the mounting element.

Description: DEVICE FOR SUPPORTING OF THE HAND Object for the invention is a device for supporting of the hand, to which device belongs an on a base, favourably on the edge of the table, detachably fastened mounting element, on the mounting element turnably fastened lengthy shaft and on the shaft turnably fastened support for the hand. In working positions, where the arms must the whole time be held bent or in some other tense position, muscular pains often arise in different muscles. Especially pains in the shoulders and in the back are common among such people, who perform working tasks like for instance typing, ADP or ordinary hand writing. The problem is causing oc¬ cupational diseases and absences from work. Nowadays some hand supports are known, which are aimed to give support to the hands, when they are tense in differ¬ ent working tasks. The present devices are, however, dif¬ ficult to adjust for different persons, and their trans¬ verse and height adjustment is not sufficient, in cases when the device is used for different working tasks and the users of it change. The purpose with the invention is to bring about a device for supporting of the hand, which is easy and simple to adjust in the height and length direction into a desired position, and which is dependable in operation. The purpose of the invention is achieved with a device characterized mainly by that, what has been presented in the patent claims. According to the invention to the device belong two mainly parallel, at a distance from each other positioned regula¬ tion arms, which are from their one end joint connected with the turning part of the shaft fastened to the mount- ing element and from the other end joint connected with the support side part of the shaft. Hereat the support can be adjusted in the height direction by moving the regula¬ tion arms in regard of the mounting element. The support remains the whole time in the same horizontal position during the height adjustment operation. In a favourable application to the device belongs a lock¬ ing mechanism for locking of the regulation arms on a de- sired height. The locking mechanism is a for the purpose suitable known device, such as for instance a screw or a similar, with the help of which the motion of the regula¬ tion arms is limited and the support is adjusted on the chosen height. The support side ends of the regulation arms of the device are in a favourable application of the invention joint con¬ nected with a separate support part and to the device be¬ longs also a to the support part turnably fastened support arm, on the other end of which the support is fastened. The support can in this application be transferred in re¬ gard of the base in the height direction with the help of the regulation arms and in the length direction with as well the turning part as the support part and the support arm in very many different positionsin accordance with the needs of the user. In the following the invention is explained more in detail by referring to the attached drawing, which presents one application of the device for supporting of the hand in accordance with the invention seen from the side. In the application presented in the figure to the device belongs a mounting element 1 for fastening of the device on a base. As the base is used a for the purpose suitable object or its edge and most commonly the device is fasten¬ ed on the edge of a table or of a corresponding object. To the mounting element belongs a regulating system for adjustment of the height of the shaft of the device in regard of the mounting element. The regulating system is formed by the toothed edges 10 of the two parts of the mounting element to be placed against each other anά of a fixing screw 11 for fastening of these two parts to each other. With the help of the toothing the mounting element is pre-aάjusted suitable for different thicknesses of bases prior to fastening of the device. To the mount- ing element belongs further on the one part of the mount¬ ing element formed protruding part 15 and onto it fasten¬ ed fastened clamping screw 12. On the other part of the mounting element has also been formed a corresponding, in the same direction pointing protruding part 16. The mount- ing element is fastened on the base by placing the mount¬ ing element in such a manner, that the edge of the base remains between the clamping screw and the protruding part of the other part and by tightening the clamping scre . To the device belongs on the mounting element turnably fastened turning part 5, on which the shaft 2 of the device is fastened. The turning part is fastened on the mounting element with a detachable pin 13, which goes through the turning part and the mounting element. On the other side of the turning part are joint connected two regulation arms A at a distance from each other. The other ends of the regulation arms are joint connected with the support part 8 of the device at an equal distance from each other than those ends joint connected with the turning part. Hereat the regulation arms are always parallel. In order to adjust the distance between the regulation arms and the height of the device between the regulation arms is placed a locking mechanism 7, which in this application is a locking screw. The locking screw is placed in an one regulation arm positioned hole and a bossage 17. On the other regulation arm is on the corresponding spot arranged a from the surface of the regulation arm protruding support 14 and additionally on the other regulation arm has been formed an with the dash line presented recess 18 for the bossage in the first mentioned regulation arm. When the device is in its lower position the each other facing sur¬ faces of the bossage and the protruding support lean against each other. When transferring the regulation arms upwards the locking screw is turned in order to keep the regulation arms on a desired height. Hereat the locking screw is against the protruding support 14 on the desired spot and prevents the regulation arms from moving downwards. Through adjustment of the locking screw the position of the regula¬ tion arms or in other words their angle in regard of the turning part can be changed in a desired position. The support part is turnably fastened on the support arm 9, on the other end of which is turnably fastened the sup¬ port 3 for the hand. The support is fastened in such a way, that it can move 360 in regard of the support arm. The support arm is placed in such a way, that it is above the regulation arms and turnable 360 in regard of them. Consequently the support can be turned to a desired spot and position within the range of a semi-circle with the radius formed by the length of the shaft of the device. By detaching the pin 13 between the mounting element 1 and the turning part 5, by turning the part of the mount¬ ing element, to which the turning part is fastened, 180° and by fastening the part back to the other part of the mounting element and by fastening the turning part again with the help of the fastening pin, the shaft of the device is lifted above the level of the base. Hereat the support can be placed in a desired position and spot on an area of a circle formed by the radius of the length of the shaft of the device. In an other application of the invention to the device does not belong any separate support arm, but the support for the hand is fastened is fastened turnably to the sup¬ port part. The device is not then adjustable to such a wide area as the device described above, but it is function¬ ing efficiently in such working tasks, in which no long range length adjustment possibility is required. The invention is not limited to the presented applications, but it can vary within the frames of the patent claims.

Claims: PATENT CLAIMS 1. Device for supporting of the hand, to which device be¬ longs an on the base, favourably on the edge of a table, detachably fastened mounting element (1), on the mounting element turnably fastened, lengthy shaft (2) and on the shaft turnably fastened support (3) for the hand, c h a r a c t e r i z e d in, that to the shaft belong two mainly parallel, at a distance from each other placed regulation arms (4), which from the one end are joint con¬ nected with the on the mounting element fastened turning part (5) of the shaft and from their other end joint con¬ nected with the support side part (6) of the shaft, where¬ at the support is adjustable in the height direction by moving the regulation arms in regard of the mounting el¬ ement. 2. Device in accordance with the patent claim 1, c h a r a c t e r i z e d in, that to the device belongs a between the regulation arms placed locking mechanism (7) for locking of the regulation arms on a desired height. 3. Device in accordance with the patent claim 1 or 2, c h a r a c t e r i z e d in, that to the support side part of the shaft belong a support part (8), with which the ends of the regulation arms are joint connected and on the support part turnably fastened support arm (9), on the other end of which the support is fastened turn¬ ably. 4. Device in accordance with the patent claim 3, c h a r a c t e r i z e d in, that the support arm is placed above the support part and the regulation arms and arranged turnable 360 in regard of the support part and the regulation arms.

Inventors: HOELTTAE SEPPO, HOELTTAE, SEPPO
Applicants: SIILIN METALLI KY
Application year: 1988
Main classification: B43L15
IPC codes: A47B21, B43L15