APPARATUS IN A LOAD CARRIER FOR THE CARRIAGE AND TRANSPORT OF GOODS

Abstract: Apparatus in a load carrier for the carriage and transport of goods, which load carrier displays a wheel-born framework (1, 2, 3) with at least one portion (2, 3) which is pivotal in order to permit insertion of the frames in each other, a loading plane (10) being disposed in or on the frame (1, 2, 3) in order to be pivotal from a first position in which insertion of the frames in each other is permitted, to a second, substantially horizontal position, in which at least one portion (18) of the loading plane (10) engages in a portion (17) of the pivotal frame portion for locking thereof in a desired position. The basis of the present invention consists of the task of obviating inconveniences in prior art apparatuses of the above-disclosed type. This task is solved according to the present invention in that at least the edges of the loading plane is, to a major extent, coated with a sound damping material (23), preferably a rubber-like material, and that the engagement portion (18) of the loading plane (10) substantially consists of a sound damping material, preferably a rubber-like material.

Description: T I T LE Apparatus in a Load Carrier for The Carriage and Transport of Goods. TECHNICAL FIELD The present invention relates to an apparatus in a load carrier for the carriage and transport of goods, which load carrier displays a wheel-born frame with at least one part which is pivotal to permit the insertion of the frames into one another. THE STATE OF THE ART/TECHNICAL PROBLEM Prior art load carriers are normally made, to a great extent, of steel tubes, steel wires and steel sheeting. The sheeting section normally constitutes the load bearing plane of the load carrier, and these are often allowed to fall freely from an upstanding position to a horizontal position in which the plane rests and locks the frame sections in a desired position. Because of the whole or partly free fall of the loading plane, an extremely powerful noise generation occurs and, in general terms, in the handling of load carrie a high level of noise occurs as a result of the impact of the metal parts against each other. The steadily more common use of such load carriers within, primarily, dairies, with their highly polluted noise environment, demands measur from, above all, the point of view of noise damping, but also other constructive improvements. Prior art load carrier for use within dairies are often designated milk roller pall and are used for packing, storing and transoort of milk cart of substantially th " e Tetra 3rik fR1 type. TECHNICAL SOLUTION According to the present invention, a loading plane is disposed in or on the fr-amework in order to be pivotal from a first position in which insertion of the frames in each other is permitted, to a second, substantially horizont position in which at least a portion of the loading plane engages with a portion of the pivotal frame section for locking thereof in a desired position, and at least the edges of the loading plane is, to an essential degree, covered with a sound-da ping material, preferably a rubber- -like material, and that the engagement portion of the locking plane substantially consists of a sound damping material, preferably a rubber-like material. It is advant¬ ageous if supports or substrate sections disposed between the framework and the loading plane essentially consist of a sound damping material, preferably a rubber-like material. Suitably, the engagement portion and/or support or substrate portions are arranged in a single unit with the covering on the loading plane. According to the inven- tion, a lock is provided -for maintaining the loading plane in the first position, and is covered with a sound damping material, preferably a rubber-like material. Furthermore, the lock is pivotally disposed in the locking plane by means of a hinge device, at least one of the hinge portion consisting of a sound damping material, preferably a rubbe like material. Advantageously, the above-mentioned one hinge device is disposed in a unit with the covering on the loading- pla ADVANTAGES Apart from an extremely powerful sound damping, the new construction according to the present invention provid possibilities for, among other things, material savings, and thereby a considerably lighter construction. DESCRIPTION OF THE ACCOMPANYING DRAWJNGS Fig.1 is a front elevation of a roller pallet accord¬ ing to one embodiment of the present invention. Fig. 2 is a side elevation of the roller pallet of Fig. 1. Fig. 3 is a rear view of the roller pallet of Fig. 1. Fig. 4 is a side elevation of that side of the roller pallet of Fig. 1 which is opposite to the view of Fig. 2. Fig. 5 is a top plan view of the roller pallet of Fig. 1. Fig. 6 is a top plan view of a roller pallet with the parts in position for insertion into another roller pallet with the parts in the same position. Fig. 7 is a top plan, view of a number of roller pallets inserted into one another. Fig. 8 is a view of a detail of the roller pallet of Fig. 1. Fig. 9 is a side elevation of the detail in Fig. 8. Fig. 10 shows, on a larger scale, a view from beneath of a base plane for a roller pallet of the type shown in Figs 1-9. Fig. 11 shows a partial section taken along the line A-A in Fig. 10. Fig. 12 shows a section taken along the line β-B in Fig. 10. Fig. 13 is a schematic top plan view of an apparatus according to the present invention, parts being shown in different positions. Fig. 14 is a schematic side elevation of the parts shown in Fig. 13 in a plurality of different positions. Fig. 15 is a section taken along the line A-A in Fig. 16. Fig. 16 is a left-hand view of Fig. 15. The roller pallet shown in Figs. 1-7 has a rear wall 1, to which there are pivotally mounted two side walls 2 and 3. The one side wall 3 displays a front gate 4a which is pivotally mounted on the side wall 3 in order to be pivotal from the position shown by means of solid lines in Fig. 5 to the position shown by means of dot- dash lines. The rear wall 1 is mounted on a mounting beam or mounting plate 4 which, on its underface, displays two fixed wheels 5 and 6. The plate 4 displays upwardly bent parts 8 for cooperation with locks 9 on the side-walls 2 and 3-. The locks 9 determine that angle in which the side walls 2 and 3 are outwardly pivotal and, in Fig, 6, the angle is 19 . In the sideposts of the rear wall 1, a bottom plate 10 is pivotally journaled, this being pivotal from the position shown in Fig. 6 to the position shown in Fig. 2. The base plate 10 mounts a lock 11 which cooperates with an upwardly bent portion 12 on the mounting plate 4 for retention of the base plate 10 in the position shown in Fig. 6. The side walls 2 and 3 are each provided with their wheel mounting plate 13 and 14, respectively, which, on their underside, are provided with a pivotal wheel 15 and 16, respectively. In each wheel mounting plate 13 and 14, there is, moreover, provided a hole 17 for cooperation with an engagement portion on the upper side of the base plate 10, when the base plate 10 is in the position shown in Fig. 2. The engagement portion 18 is shown in graater detail in- Figs. 10-14. When the base plate 10 is in the position shown in Fig.2, the engagement portion 18 protrudes into the hole 17 and retains the side walls 2 and 3 in the position shown in Fig. 5. In Fig. 13," there is shown a slightly modified form of the wheel mounting plates 13 and 14. In Fig. ' 13, the locks 19. have, furthermore, a slightly different form from that shown in Fig. 6. Moreover, the mounting plate 4 is modified and adapted to the base plate 10 which is shown in greater detail in Figs. 10-12. The base plate illustrated in Figs. 10-12 is construct from a sheet metal base 20, which, at one short side, has a tube 21 for forming a portion of a hinge device. On the underside, the 'base 20 has, moreover, a rigidification profile 22 which, furthermore, is intended to cooperate with the wheel mounting plate 13 and 14 on handling of the roller pallet on a roller conveyor. It should, here, be observed that the view of the base plate shown in Fig. 10 shows the base plate from its underside. As is apparent from Fig. 12, the rigidification profile 22 will terminate on the same level as the wheel mounting plates 13 and 14 when- the engagement portions 18 have been inserted into the holes 17 in the wheel mounting plates. In this manner the roller pallet can be handled on a roller conveyor witho the need o^ «ny mechanical lock for retention of the base plate 10 in its lowered, horizontal position, since the rollers in the roller conveyor will be influenced both by the wheel mounting plates 13 and 14 and the rigidificati profile 22. For further rigidification of the entire base plane 10, and, moreover, for noise damping thereof, the plate 20 is covered with a sound damping material 23, as is more clearly apparent from Fig. 11 and 12. The plate 20 is provided with the greater portion of this material 23 on the upper side where the covering material 23 is ' more¬ over provided with grooves 24 for, on the one hand, allowin the run-off of water, and, on the other hand, for material saving. The engagement portion 18 consists, according to Figs. 11 and 12, of a buffer-like portion which is manufactured of a sound damping material of the same type as the base plate . 20 is coated with and, preferably , the buffer portion 18 is integrally provided with the coating portion 23. Furthermore, the hinge device tube 21 is coated with rubber, as is illustrated in Fig. 12 to the left. In the vicinity of the hinge device portion 21, there is further provided a hinge portion 25 which is manufactured of a sound damping material. On the undersi-de of the base plane 10, there are, furthermore, disposed two support buffers 26 and 27 which are intended to rest on the mounting plate 4. A lock 11 is mounted in the hinge portion 25, this lock being shown in greater detail in Figs. 15 and 16. The lock 11 is also provided with a coating material 28 which consists of a sound damping material, preferably, rubber. It should here be observed that all of the sound damping material consists preferably of rubber. Consequently, for reasons of suitability, all of the parts provided with. sound damping material on the base plate 10 are integrally manufactured with each other. In Fig. 13, it is shown in greater detail hόw the base plate 10 is pivotally anchored in the side posts on the rear wall 1. Apart from the hinge portion 21, the hinge means comprises a pin 29 in each side of the tube 21, a spring 30 being disposed " between the pin 29 for urging the pin 29 through each hole in the side posts such that the pins 29 abut against the outer wall on the side posts. In the outer wall-there may be disposed a smaller hole than in the inner wall, such that the pin 29 cannot project through the side post but, on the other hand, can be urged back into the tube 21 by means of a suitable tool on dismantling of the base plate from the roller pallet. Fig. 14 also shows how the lock 11 cooperates with the upwardly bent portion 12 on the mounting plate 4 for retention of the bottom 10 in the illustrated, upwardly directed position which it assumes in Figs. 6 and 7. Apart from a considerable datnpiπς of noise, a markedly better construction will be realised of the base plate 10, and the sound damping is substantially attained in that as good as no metal parts come into contact with each other apart from by the intermediary of the sound damping coating material. For this reason, the pins 29 may be disposed to project into a block consisting of sound damping material which is disposed in the side post, instead of directly into a hole provided in the side post.. The engagement portion or buffer 18 consists of two cylindrical parts and a frusto-conical portion.The one cylinder rests against the underside of the sheet met base 20 and is in communication with the material 23 on the upper side by the intermediary of a hole, preferably a circular hole of a diameter of 15mm. The height of this cylinder is selected such that its underside rests on the wheel mounting plate 13, 14, whereas the other cylinder and the frusto-conical portion dispersed thereon extend into the hole 17. The two latter portions on the buffer 18 also serve for guiding the wheel mounting plate and the wall into the correct position. Fig. 17 is a schematic view from beneath of a base plane according to a further embodiment of the present invention for -a roller pallet of the type illustrated in Figs. 1 to 9. Fig. 18 is a section taken along the line A-A in Fig. 17. Fig. 19 is a section taken along the line B-3 in Fig. 17. The embodiment of a base plate 10 according to the present invention and shown in Figs. 17-19 differs from the embodiment described earlier in that only the edges of the base plate 10 proper are provided with a covering material 42 which consists of a sound damping material preferably rubber. At the opposite edge of the base plate 10 v/ith respect ' to the hinge portion, the covering materi moreover extends up across the surface of the base plate 10 as is clearly apparent from Fig. 18. The portion of the covering material extending over ' the surface of the base plate 10 may be considered as a snout which prevents OMPI direct contact between the sheet metal on the surface of the base plate 10 and the rear wall 1. This embodiment also differs from the previously described embodiment in that dampers 40 and 41 of .rubber- like material are provided on the underside of the base plate 10, on either side of the hinge portion 25 for the lock 11. The dampers 40 and 41 are preferably disposed in an integral unit with the covering .material.

Claims: CLAIMS 1. Apparatus in a load carrier for the carriage and transport of goods, which load carrier displays a wheel- born framework (1/ 2, 3) with at least one portion (2, 3) which is pivotal in order to permit insertion of the fram in each other, a loading plane (10) being provided in o.r one the frame in order to be pivotal from a first positio in which insertion of the frames into one another is permitted, to a second, substantially horizontal position in which at least a portion (18-) of the loading plane engages with a portion (13, 14) of the pivotal frame (2, 3) for locking thereof in the desired position, c h a r a c t e r i z e d i n t h a t at least the edges of the loading plane (10) is, for the greater part, covered with a sound damping material (23), prefera a rubber-like material, and that the engagement portion ( of the loading plane consists essentially of a sound damp material, preferably a rubber-like material. 2. Apparatus according to claim 1, c h a r a c t e r i __ e d i n t h a t supports or substrate portions disposed between, the frame (1, 2, 3) and the loading plane (10) consist of substantially sound damping material, preferably a rubber-like material. 3. Apparatus according to claims 1 and 2, c h a r a c t e r i z e d i n t h a t the engagement portion (18) and/or support or substrate portions are disposed in an integral unit with the covering (23) on the loading plane (10). 4. Apparatus according to claim 1, c h a r a c t e r i z e d i n t h a t a lock(11) is disposed to maintain the loading plane (10) in the first position, ' and is covere with a sound damping material, perferably a rubber-Like material. 5. Apparatus according to claim 4, c h a r a c t e r i ≤z e d i n t h a t the lock (11) is pivotally disposed in the locking plane (10) by means of a hinge, at least one hinge portion consisting of a sound damping material, preferably .a rubber-like material. OMF 6. Apparatus according to claims 3 and 5, c h a r a c t e r i z e d i n t h a t said one hinge portion is disposed in an integral unit with the covering (23) on the loading plane. 7. Apparatus according to claims 1 and 5, characterized in that on the edge of the loading plane opposite the hinge, the covering material extends above the surface of the loa¬ ding plane (10).

Inventors: NILSSON A
Applicants: NILSSON A, PELLY AB
Application year: 1980
Main classification: B62B3
IPC codes: B62B3, B65D19