DE1032140B - Springboard with jump and crossover area - Google Patents

Description

The subject of the main patent is a springboard with a jump and crossover area, in which the front The end of the transition area rests on a transversely running base, with jump area and Transition surface are made in one piece from elastic material and the front end of the transition surface rests movably on the base, advantageously such that on the inside of the Pad are arranged at a distance from the transition area angle iron, hooked into the screw bolts that protrude backwards from the transition area.

The invention is a further development of this springboard, which has proved itself better in practice, and ^1, although there is the support of a spring leaf with a side view of S-like shape formed of two successive and mutually opposite curvatures ·, said The spring leaf is firmly connected at its upper, cantilevered edge with the front narrow side of the transition surface and at its lower edge with the spars carrying the entire arrangement. These spars are also expediently elastic, preferably designed as spring leaves.

Such a stepping stone is illustrated in more detail, for example, by FIG. 1 of the drawing. The upper part made of one piece, consisting of the jump surface α and the transition surface b, rests with its upper narrow side on the S-shaped spring leaf c, which has the curvatures C ₁ and: C ₂ . The contact surface C _{3 of} this spring leaf and the transition surface b are connected at their outer edges by means of the U-shaped profile plate / and continuous screw caps. This connection point is exposed to particular stresses due to the pre-tensioning of the entire arrangement described below. The connection of the spring leaf c with the spars d at g is readily apparent from the drawing, as is the connection of the lower narrow side of the upper part with the ends of the spars at d _v

The pretensioning is achieved during the manufacture of the diving board as follows: The support surface c ₃ , which does not run parallel to the transition surface b in loose support, is clamped and fastened to the transition surface b by means of the profile plate /. Then, the take-off area a is pressed with its lower Sahmalseite to the spars and rigidly connected with these in Ci. ₁ As a result, the take-off surface arches slightly upwards from the position a _{t shown} in dashed lines into the fully drawn position α of the take-off surface. When the springboard is used by the practitioner, the slightly elevated upper part is stretched in spite of the rigid connection.
and transition area

Addendum to patent 1,012,548

Applicant:

Richard Reuther,

Ludwigshafen / Rhine-Oppau,

Oggersheimer Str. 22

Richard Reuther, Ludwigshafen / Rhein-Oppau,
has been named as the inventor

fertilize at C ₃ (by means of /) and d _v This stretching of the

a5 upper part is made possible by the spring c , which stretches in the same ratio as the upper part, namely the spring leaf c is bent down in part C ₁ and up in part C _2. As a result, the front edge on the profiled sheet f of the upper part has become elastic, in contrast to the known diving boards, in which this edge is solidly supported. With the springboard according to the invention, the risk of injury in the event of a fall is therefore reduced. All parts of the device, the upper part, the spring leaf and the spars, yield: resiliently to the loads.

Instead of two spars, a single spar in the form of a correspondingly shaped spring leaf can also be used to get voted.

In the embodiment shown in Fig. 2, the S-shaped spring leaf and the elastic spars are made of one piece, the front end of the spring leaf in a lying U representing head piece C ₁ , c, ₂ ', c ₃ ' opens, which at the top

U-leg c ₃ ' with the upper part at the point /'

connected during the transition of the U-bend
in the lower U-leg C ₁ serves as a front support for the entire arrangement.

Multiply glued materials are particularly suitable as the material for the production of these diving boards Laminated wood, elastic plastics or metals.

The advantages of the springboard according to the invention are based on the fact that all Incorporate structural parts into the suspension process

809 53ΛΠ1

are related and that therefore d'ie spring force at the use of the diving board is particularly beneficial. Since there are no loose co-instruction parts are also, no compressive stresses can go into the void without triggering opposing forces. These advantages distinguish the springboard according to the invention both from the springboard according to the main patent as well as older diving boards, which are known as so-called "large spring diving boards". In a known device, steel springs are used as the resilient element without this component the remaining parts are connected to a real unity; In addition, this device lacks an accident prevention mechanism Transition area. This is indeed present in another known device, but also here neither the base frame nor the jump surface are involved in the suspension process.

Claims (3)

Patent claims. 1. Springboard, in which the take-off surface and transition surface are made in one piece from elastic material and the front end of the transition surface rests on a transverse support, which connects two parallel spars arranged in the longitudinal direction of the diving board, the rear end of which is connected to the lower edge connected to the narrow side of the take-off surface, according to patent 1 012 548, characterized in that the base consists of a spring leaf (c or c ') with an S-like shape in side view, formed from two successive and opposite curvatures, this being The spring leaf is firmly connected at its upper, cantilevered edge with the front narrow side of the transition surface (b) and at its lower edge with the spars carrying the entire arrangement. 2. Springboard according to claim 1, characterized in that the spars are elastic, for example are designed as spring leaves. 3. Springboard according to claim 1 and 2, characterized in that the pad and the elastic spars are made from an elastic piece, the front end of which is in a head piece (C ₁ ', C ₂ ', C ₃ ') in the form of a spring leaf of a lying U, of which the upper U-leg (c ₃ ') is firmly connected to the front narrow side of the transition surface (b) , while the transition of the U-bend (c ₂ ') into the lower U-leg ( C ₁ ') serves as a front support for the entire springboard. Considered publications:
German patent specifications No. 586 145, 910 872. 1 sheet of drawings © 809 530/71 6.