DE4238874A1 - Bicycle seat with reclining position - has separate sections for seat and back support with independent adjustment - Google Patents

Abstract

The reclining seat assembly, for special bicycles, has the seat back (1a) slung between upper and lower supports, while the seat (1a) is slung between front and rear supports. The adjoining supports for the back and seat are arranged in a crossed layout and the two sections are adjustable independently. The seat back support has an additional adjustment (3b) for lumbar support. Each section can tilt independently about a middle axis through the support surface. This allows the rider to move with the pedalling action. The support surfaces are fabric. USE/ADVANTAGE - The reclining bicycle seat gives improved freedom of movement, improved support, improved comfort. D21

Description

There are fabric-covered seats for recumbent bicycles known consist of an upper and a lower part, which in the Angles are suspended from each other and at their crossing point approximately in the bisector to the rear are braced at the bottom of the bicycle frame (Edgar Löhr, P 33 45 831 A1).

The disadvantage of these seats is that they are not optimal adapt to the anatomy of the user, and that they restrict their freedom of movement.

The tensions of the upper and lower seat part influence each other, including the position of the seat parts in the room is not to be chosen independently. If e.g. B. the driver slips backwards, he pushes himself automatically also upwards.

There is also friction on the contact surface between Seat and driver, because the seat of his movements cannot follow.

There are also known seats stretched out of fabric, which in approximately the shape of a garden chair, d. H. out two roughly plan surfaces stretched across the body consist.

The disadvantage of this construction is that it allows freedom of movement especially the upper body around the spine severely restricted.

These disadvantages are highlighted by the characterizing part of the Main claim avoided.  

Due to the separate suspension of the two seating elements the seat the movements of the lower legs and pelvis follow the driver, friction and restriction of movement become so avoided.

The spatial arrangement and the stress states of Upper and lower seating elements can be used independently can be freely chosen. This allows the seating position can be precisely defined.

The upper element can be in a preferred embodiment can be clamped independently in two axes.

In addition, the top and bottom element can easily be used against others shaped elements are exchanged.

The following is a description of a preferred embodiment:

The upper element ( 1 b) forms the backrest. It is suspended from the top and bottom of the bicycle frame (saddle tube 4 b) in such a way that the position, length and tension can be changed. In addition, the element ( 1 b) is suspended on the right and left of the central axis (in the axis 1 C) so that the position, length and tension can also be varied here.

The lower element ( 1 a) forms the seat. It is provided with a tensioning device ( 2 a) at the front end and with an adjustment device ( 3 a) at its rear end. This adjustment device ( 3 a) is suspended from the frame behind the element ( 1 b), the element ( 1 b) in turn is suspended from the frame below the element ( 1 b), so that the elements ( 1 a) and ( 1 b ) cross and penetrate each other.

It is also possible to use the construction principle in the shoulder area to apply.

Mapping table:

A level of the seat
B level of the backrest
1 a lower element
1 b top elements
1 A swivel axis of the lower element ( 1 a)
1 B pivot axis of the upper element ( 1 b)
2 a clamping device for lower element ( 1 a)
2 b clamping device for upper element ( 1 b)
3 a adjustment device for lower element ( 1 a)
3 b adjustment device for upper element ( 1 b)
4 a lower frame tube
4 b seat tube

Claims (3)

1. Seat for a bicycle with the rider lying down, which is braced on the bicycle frame and extends essentially in two levels A and B,
characterized by
that it consists of at least two elements ( 1 a) and ( 1 b) (preferably made of fabric or leather) suspended separately from one another on the bicycle frame, at least one of the elements ( 1 a), ( 1 b) about an axis ( 1 A) or ( 1 B) is pivotally suspended and in that the axis ( 1 A) or ( 1 B) represents the intersection axes of the planes (A) or (B) with the vertical center plane of the bicycle. 2. Seat according to claim 1, characterized in that the rear guy point of the element ( 1 a) behind the plane B and the lower guy point of the element ( 1 b) is below the plane A. . Seat according to claim 1, characterized in that the element ( 1 b) approximately in the plane B in addition to the bracing in the axis ( 1 B) at least once in an axis ( 1 C) which is perpendicular or approximately perpendicular to the axis ( 1 B ) runs, is tensioned.