DE8325369U1 - Exercise machine for abdominal muscles - Google Patents

Description

: '. . : *: I '*: *: Soriusch Djamtorki

Danziger Strasse 28e 2087 Ellerbek

Date: 09/01/1983 Exercise machine for abdominal muscles

The invention relates to a device for gymnastic exercises, in particular for developing the abdominal muscles.

Such sports equipment is also suitable for people who are not exactly very sporty, even for older or disabled people “Because you can sit down simply let it fall backwards or jerk it and the spring force will bring you back into the sitting position return.

In the previously known devices for developing the abdominal muscles you always have to pull yourself up from a straight line or inclined plane with your head hanging down. However, this requires a healthy, athletic body. The leg muscles are also strongly affected drawn. In addition, a lot of space is required for the device «

The invention is based on the object, even people who are not very athletic, or who are difficult to get out of Lie up to allow your abdominal muscles to develop.

The object is achieved according to the invention in that; the The backrest of the chair-like device is movably attached to the seat frame. Using two cylinder springs (9) see Fig. 1 The backrest rises continuously (one piece on each side) printed and thus always brought into the sitting position. Flat bars are used to make the cylinder springs a guide which are bent to a pitch circle (6) and flattened at the lower end or provided with a through hole at the upper end are pulled by the springs and screwed to the top of the backrest. For this purpose, elongated holes are made

the frame tubes are milled at the point where the spring fixing caps (13) are attached. At the same time, of course, with and through the fixing caps. If necessary, additional springs (8) and (7) can be clamped in by inserting the flat rods (5) and (4) into the elongated holes from below, pulling them through the springs and fastening them to the backrest with a split pin at the top. So these springs constantly push the backrest upwards so that you can swing backwards and be pushed back upwards by the force of the spring. It should be noted that you always have to press something with your body against the feathers, coming downwards as well as upwards, in order not to be pushed.

To increase the tilting moment, the rear parts of the chair legs (2) are lengthened and widened towards the rear. (see Fig. 1) The necessary slip resistance during the exercise is achieved by the fabric belts (11) and (12), with belt (11) adjustable in two parts and belt (12) in one piece is firmly attached to both front chair legs. The strap (11) is tightened over the thigh during the exercise. Belt (12) can be used as a foot abutment to grip behind the feet in the joint area.

The advantages achieved with the invention are in particular that as a result, older and non-sporty people or disabled people can now trust themselves to bend backwards without having to rely on the help of others, because you keep coming up. The abdominal muscles are always tense during the tear. The spine becomes more elastic. The back muscles are developed. The springs can be reduced or increased as required (as with expander). This device takes up no more space than a normal chair. So it fits in every room and bathroom.

An embodiment of the invention is shown in the drawing Fig.1.

Claims (2)

• S Iff '■ t • • I • • • I • • ■ • Patent claims 1. Gym equipment for developing the abdominal muscles, characterized in that the backrest of the chair-like device falling backwards, is movably attached to the seat frame. 2. gymnastics device according to claim 1, characterized in that two or more springs (9) or (8) and (7) with the guide rods (6) or (5) and (4) the backrest from both sides on the rear Connect part of the seat frame.