DE1252076B - - Google Patents

Description

FEDERAL REPUBLIC OF GERMAN

int. Cl .:

B 62 b

GERMAN

ψ PATENT OFFICE German class: 63 b - 27

Number:
File number:
Registration date:
Display day:

1 252 076
S78318 11 / 63b
March 3, 1962
October 12, 1967

The invention relates to a steering and braking device for sleds in which the Brake member-carrying steering runner with a rotatable about an approximately vertically extending axis and around a horizontal axis pivotable control rod is connected.

In this known device, the steering runner, which is also the braking member in the form of an am rear end arranged Bremssporas carries, over a steering fork reaching backwards in the way actuated that when moving the steering fork down the brake spom and when moving up the Steering skid take effect. This direct transfer of the movement of the steering fork to the steering and brake shoe prevents z. B. soft or elastic adjustment on uneven ground or in curves the pressure of the runners on the ground, so that the steering in particular is impaired. Furthermore, it is not possible to transition smoothly from guiding the slide to braking and steer at the same time while braking.

There are devices of this type known in which the runners cross over evenly from steering to braking and enabling simultaneous braking and steering. With these However, steering and brake runners protrude unprotected beyond the front contour of the carriage, as a result of which they are susceptible to bumps and impair driving safety, and the runners also ground controlled directly by moving lever mechanisms up and down, causing them to react to the smallest movements and make it difficult to press the runners gently against the ground.

The invention is therefore based on the object of providing a steering and braking device for sledges simple means to train in such a way that a carriage equipped with it both sensitively steered as can be carefully braked if necessary while maintaining the steering.

According to the invention, this object is achieved in that the steering runner is connected to one of the pivot bearings the control rod is connected to the forward-protruding boom so that it can pivot about a vertical axis is and the control rod carries a crank pin which is arranged in a longitudinal guide on the steering runner intervenes.

The inventive device creates the possibility that by pivoting the control rod the load pressure around its horizontal axis, adapted to the condition of the slide track by pulling the control rod forward or backward, steering and braking device for sledges

Applicant:

SKS Metallbau Aktiengesellschaft, Schwanden
(Switzerland)

Representative:

Dipl.-Ing. Η. Barth, patent attorney,
Nuremberg, Bücher Str. 3

Named as inventor:

Rudolf Hefti, Schwanden (Switzerland)

Claimed priority:

Switzerland of March 10, 1961 (2946)

Can be relatively easily changed because the driver is pulling the control rod forwards and backwards can support with his feet on the slide. In contrast to the known devices takes place here the steering is no longer direct, but indirect.

The steering and braking device according to the invention is particularly advantageous when the steering runner in a known manner a front, in the basic position of the control rod in the plane of the Sliding runners lying sliding edge and one at an obtuse angle adjoining this, on theirs rear end has a rear sliding edge carrying brake teeth.

By adopting the measures known per se on a steering device according to the invention Principle can be braked in a very simple way while maintaining the steering will. To do this, it is sufficient to simply pull back the control rod a little more.

In the drawing, an example embodiment of the subject of the invention is shown, namely shows

F i g. 1 is a side view of the carriage in the normal steering position,

F i g. 2 is a front view of FIG. 1,

F i g. 3 shows a cross section along line III-III in FIG. 1,

F i g. 4 shows a partial plan view according to section line IV-IV in FIG. 1,

709 677/40

Claims (2)

5 shows a partial view of the slide with the steering device in the position for generating an increased loading pressure on the steering runner and FIG. 6 is a side view of the carriage in the braking position. The slide shown consists of a tubular steel frame with two side parts 1, which are braced together by cross connections 2, 3, 4, 5. The seat surface consists of the usual longitudinal slatted frame 6. The slide runners 7 have angled profile rails 8 as a sliding surface, which largely prevent the slide from slipping or skidding sideways. The steering device has a control rod 10 which is provided with a handwheel 9 and which is mounted in a pivot bearing 13 which is pivotable on two arms 11 of the carriage frame about a horizontal axis 12 set transversely to the direction of travel and which in the sense of the angle α and β in FIG. 4 and 5 is pivotable. On a forwardly projecting arm 14 of the pivot bearing 13, a steering runner 16 is arranged by means of a joint 15, which is pivotable in the joint 15 about an axis vertical to the roadway. The pivoting of the steering runner 16 is effected by a crank pin 17 arranged in the lower end of the steering rod 10, which engages in a longitudinal guide 18 of the steering runner 16, and by turning the handwheel 9 in one direction of rotation the steering runner is pivoted to the left and in the other direction of rotation to the right. The steering runner has a sliding edge a running horizontally in the basic position of the control rod and an inclined sliding edge b adjoining this at an obtuse angle with a brake toothing 16 'on the rear part thereof. The sliding edge a lies in the basic position of the control rod in the same plane as the slide runners 8, while the sliding edge a can be lifted off the ground by pivoting the control rod through the angle α and the inclined sliding edge can be brought to rest on the roadway, in such a way that this edge b protrudes to the front over the level of the runners 8 and consequently rests or penetrates into the track or sled track with greater loading pressure. The control by means of the sliding edge b with the control rod partially pivoted from the basic position according to FIG. 5, whereby only the front part of the sliding edge b rests effectively on the slide track, is used in curves or when iced over. By greater pivoting of the control rod 10, for. B. at the angle β according to FIG. 6, the carriage is raised at the front and the attack of the toothed part of the steering runner on the Schhttenbahn and thus causes an extremely effective braking of the carriage. While the handlebar can set up his feet on the bumper 4 of the slide, there is the possibility for the passenger to set up his feet on special foot plates 19 that are raised on the runners 7. The slide can be steered with very little effort, as the power transmission from the steering wheel to the runner is translated several times. Patent claims: 1. Steering and braking device for sledges, in which the steering runner carrying the brake member is connected to a control rod rotatable about an approximately vertically extending axis and pivotable about a horizontal axis, characterized in that the steering runner (16) is connected to one of the pivot bearings ( 13) the control rod (10) is pivotally connected to the front projecting arm (14) about a vertical axis and the control rod (10) carries a crank pin (17), which engages in a disposed on the directing runner (16) longitudinal guide (18) . 2. Steering and braking device according to claim 1, characterized in that the steering runner (16) in a known manner has a front, in the basic position of the control rod (10) in the plane of the slide runners (7) lying sliding edge (a) and one has rear sliding edge (b) adjoining this at an obtuse angle and bearing a brake toothing at its rear end. Considered publications:
German Patent Nos. 199 894, 217 058;
Swiss Patent No. 34 192. 1 sheet of drawings 709 677. "! 0 10. 67 © Btmdesdtuckerei Berlin