FI74243B - MELLANBOTTEN FOER RULLVAGN. - Google Patents

Description

The present invention relates to an intermediate base for a roller, which intermediate comprises at least two parts consisting of longitudinal yarns and lower transverse supports connecting them.

Known midsoles have three vertically pivotable portions so that the midsoles can be folded into the rear of the roller. This structure has the disadvantage that when the front of the midsole is empty, the products on the lower midsole can only be accessed from above by turning the front upwards, so that the products at the rear can only be picked up after the front of the midsole has been turned back down.

The object of the invention is to provide a new intermediate base which eliminates the above-mentioned drawback.

To achieve this, an intermediate base is proposed, which is mainly characterized in that said transverse supports are arranged at the front and rear edges of the front and rear parts, that the longitudinal threads of the front part are passed over the front edge support and that the front rear edge support is arranged the front part can be pushed inside the rear part.

25 In the case of a triangular midsole, the abovementioned rear part means the middle part of the midsole.

When there are no more products on the front of the midsole according to the invention, the front part can be pushed into the rear part under the products on it, so that there is unobstructed access both to the remaining products of the midsole and to the products on the bottom or midsole.

The invention will be explained in more detail below with reference to the accompanying drawing.

Fig. 1 shows the midsole seen from above with the front part pulled out.

2 74243

Figure 2 shows the midsole seen from the side with the front part extended.

Figure 3 shows the midsole seen from above with the front part inserted.

Figure 4 shows the midsole folded.

The front part of the midsole is marked with reference number 1, the middle part with number 2 and the back part with support number 3. The support levels of the different parts of the midsole for product packaging are generally formed into gratings in which 10 longitudinal metal wires 4, 5 and 6 are connected , 11 and 12. The wires 6 of the rear part 3 of the midsole are bent at the front into hooks 13 around the rear transverse support 10 of the central part 2 and bent at the rear into loops 14 through which a transverse axis is intended to be fitted.

In known midsoles, the front part and the middle part are pivotally connected to each other in a manner corresponding to the above-mentioned arrangement 10, 13. In contrast, in the midsole according to the invention, the front part 1 is arranged to slide relative to the central part 2. To achieve this, the rear edge of the front part 1 is provided with a transverse support 8 and the front edge of the central part 2 with a transverse support 9, the front longitudinal wires 4 The wires 4 and 5 are in the same plane, the product packages on the middle part of the midsole are thus not an obstacle to the sliding movement of the front part 1.

The sliding movement of the front part 1 of the midsole is limited in the position according to Figures 1 and 2 by the stops 8a hitting the cross support 9, in the position according to Figure 3 the stops 7a hitting the cross support 9. The stops 7a are furthermore preferably adapted to slide on angle brackets fixed to the side walls of the roller.

The lateral stability between the front part 1 and the central part 2 is ensured in the embodiment shown in the drawing by adapting the wires 4 on each side of the front center wire 4a to pass outside the wire 5 adjacent to the center part 2, the same result would naturally be achieved by reverse arrangement.

5 The vertical stability of the parts 1 and 2, on the other hand, is ensured by the lower longitudinal wires 15 (part 1) and 16 (part 2). The wires 15 prevent the front end of the part 1 from rising and the wires 16 prevent the rear end of the part from falling relative to the plane of the central part 2, especially when the front part 1 is inserted according to Fig. 3.

In the example of the drawing, there are two yarns 15 and 16 on each side of the midsole, one of which would suffice.

From the point of view of the sliding of the front part 1 of the midsole in the actual operating situation, the aforementioned stabilization-15, i.e. control solutions, are not necessary because the iron irons of the side walls of the roller, which are not shown in the drawing, can in principle provide the necessary control. Instead, these solutions are of great advantage when the midsole is folded into the rear of the roller from the position shown in Fig. 3, the front of the midsole following the center as its cross-member 10 pivots in the bearing 13. The loops 14 of the midsole 3 in turn allow an oval bearing, which allows the rear part 3 to be reliably maintained in the raised position. The distance between the yarns 4 and 15 and / or the yarns 5 and 16 at the front end of the front part 1, reference number 17, and at the rear end of the center part 2, reference number 18, respectively, so that the transverse bars 9 and 8 remain slightly compressed in the position shown in Fig. 3, to remain in place when the intermediate 30 base is folded and the side walls of the roller are out-turned. The retention of the front can still be ensured by a separate stop attached to the roller.

The roller for which the midsole according to the invention is intended may otherwise be more or less conventional, for which reason its presentation in the drawing has not been considered necessary.

Claims (4)

4 74243 A midsole for a roller, the midsole comprising at least two parts (1, 2) of longitudinal yarns (4, 5) and 5 lower transverse supports connecting them, characterized in that said transverse supports (7, 8; 9, 10) are arranged to the front and rear edges of the front part (1) and the rear part (2), that the longitudinal wires (4) of the front part (1) are passed over the front edge support (9) of the rear part (2) and that the rear edge support (8) of the front part (1) is fitted to the rear under the longitudinal wires (5) of the part so that the front part (1) can be pushed into the rear part (2). Intermediate base according to Claim 1, characterized in that the front part (1) is arranged to slide relative to the rear part (2) in the mutual lateral guidance of the longitudinal wires (4, 5). Midsole according to Claim 1 or 2, characterized in that in order to keep the front part (1) at least substantially flush with the rear part (2), each part (1, 2) is provided with transverse supports (7, 8;> 9, 10). ) with longitudinal guides (15, 16) mounted below. The midsole according to claim 3, wherein the midsole is three-part, said rear part (2) forming the middle part (2) of the midsole and being pivotally mounted on the third part (3) at its rear edge (10), characterized in that the front part (1) and the middle part ( 2) the distance between the longitudinal wires (4, 5) and the lower longitudinal guides (15, 16) is narrowed near the front edge of the front part (1) and the middle part from the points (17, 18) at the rear edge, so that the transverse supports of the parts (1, 2) 9, 8) are subjected to light compression. li