DE29910228U1 - Folding and locking system of the roller unit for single-track roller skates (inline skates) - Google Patents

Description

Waldemar Oldach ·· ·· :"::'.', \ Il '. Blatt

Folding and locking system of the roller unit on single-track roller skates (inline skates)

Description:

The invention, which belongs to the field of sporting goods, is an extension of the range of single-track roller skating systems. The state of the art in this field only includes roller units that are firmly attached to the shoe, are spring-loaded, rocking and removable. With the permanently attached roller units, dangers arise when going down staircases, exits, etc., mainly for children and insecure users of the sports equipment. The removable version of the roller unit also has the disadvantage of being difficult to store and reattach. These studies resulted in the design of a folding mechanism for the roller unit (drawing 1, Fig. 1 and 2).

Protection is sought for the type of folding and locking system:

Unlocking and folding forward towards the toe and locking the raised roller unit.

By folding up the roller unit, it is possible to safely cross uneven and impassable passages. Even entering rooms where inline skating is not permitted is no longer a problem. In order not to restrict the legroom of the lower legs when walking with the roller unit folded up (drawing 2, Fig. 4), the joint axis on the outside of the shoe must be inclined by 5 degrees in relation to the horizontal (drawing 2, Fig. 3) in order to achieve an inclined position of the folded up roller unit, seen from the front.

This folding system is suitable for both rigid and elastic shoe systems;

As can be seen from drawing 1, Fig. 1, the folding system consists of a continuous metal plate (1), or in the case of elastic shoes, a split metal plate, which is attached to the bottom of the shoe and runs diagonally upwards at the tip of the shoe and carries the joint with integrated locking mechanism (Fig. 2). The middle part of the joint is a stable bracket (2) which is firmly connected to the roller unit. Since the joint is set relatively high, it does not interfere with walking at all.

Waldemar Oldach. .: .: ·"··'* :"::"*! Description Sheet

Drawing 1, Fig.2 shows the folding joint in section. The hollow screw (3) is the bearing for the bracket (2), which has the conical bore for the locking pin (4). When the roller unit is folded up, the latter slides into this bore due to the spring pressure of the spring (5) and thus locks the roller unit. The design of this locking mechanism also serves as a safeguard against deliberate ripping of the raised roller unit, since the spring pressure is overcome when this is activated and the locking pin (4) releases the lock due ^to the conical shape of its tip. The large-area design of the joint means that the axial and vertical stresses on the joint can be easily absorbed.

By pressing the locking pin (4) with your finger, the raised roller unit can be folded back down into driving mode and secured by the locking mechanism (drawing 3, Fig. 5). The shoe sole (6) and the heel (7) are cut out lengthwise in the middle, the width of the roller frame, and give the roller unit additional lateral stability.

The locking during driving operation is shown in drawing 3, Fig. 5 in section.

The rigid locking hook (9) is attached to the metal plate (1) by the screw (8). When locked, this hook hits the counter hook (11) that is movably mounted in the roller frame through an opening in the roller frame. The spring (12) presses this against the stop (13) and locks it with the rigid upper hook (9). The height-adjustable abutment (14) allows the locking to be set without play. The rigid hook (9) also serves as a side stabilizer for the roller unit, as it has the same width as the clear width of the roller frame.

Claims (2)

1. Folding and locking system of the roller unit on single-track roller skates (inline skates), characterized in that after unlocking the roller unit, it is folded up forwards towards the tip of the shoe and the raised roller unit is locked. 2. Folding and locking system according to protection claim 1 , characterized in that: 1. a metal plate ( 1 ) attached to the bottom of the shoe, which is continuous in rigid shoe systems and split in elastic shoe systems and which runs diagonally upwards at the toe of the shoe and carries the joint with integrated locking ( Fig. 2). 2. the middle part of the joint ( 2 ), which has a conical recess off-centre on the side for the locking pin ( 4 ), merges into a stable bracket which is firmly connected to the roller unit. 3. The roller frame joint is arranged at an angle when viewed from the front ( Fig. 3). By tilting the joint axis towards the outside of the shoe by 5 degrees in relation to the horizontal, the folded-up roller unit is at an angle when viewed from the front. 4. The shoe sole ( 6 ) and the shoe heel ( 7 ) are located on the underside of the metal plate ( 1 ), which are recessed lengthwise to the width of the roller frame. 5. The locking mechanism of the roller unit for driving operation is located in the rear part between the second to last and the last roller ( Fig. 5).
The rigid locking hook ( 8 ), which also serves as a lateral stabilizer of the roller frame, is screwed to the metal plate ( 1 ) and the shoe body ( 15 ) in the longitudinally recessed heel ( 7 ).
The spring-loaded counter hook ( 11 ) which is movably mounted in the roller frame also serves as an unlocking component. The height-adjustable abutment ( 14 ) is used for precise locking.