Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
  • F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
  • F16B12/40—Joints for furniture tubing
  • F16B12/42—Joints for furniture tubing connecting furniture tubing to non-tubular parts
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
  • A47B96/00—Details of cabinets, racks or shelf units not covered by a single one of groups A47B43/00 - A47B95/00; General details of furniture
  • A47B96/02—Shelves
  • A47B96/021—Structural features of shelf bases

Definitions

• This invention relates to an assembly of preferably elongated parallel members, e.g. parallel transverse members in a frame structure, where two or more members are assembled via one or more rods serving as coupling means and extending in their transverse direction.
• Frame structures which are constituted by two or more parallel beams or side members which at their ends are connected with beams or transverse members extending in their transverse direction.
• the transverse and the longitudinal members or beams extending in the transverse and longitudinal direction of the frame make together the frame sufficiently stable and rigid.
• the present invention has for its purpose to provide a coupling or assembling technique providing for an inexpensive frame structure, in which the individual parts of the frame may be connected or assembled with each other on the site of use by unskilled personnel without the use of special tools, and in which the completed frame structure nevertheless presents a strong and durable stiffness.
• each member e.g. each transverse member
• at least one hole in the form of two intercommunicating hole parts one of which has a diameter that is a little larger than the diameter of a preferably tubular rod extending through said holes, while the second hole part is adapted to receive said rod with a tight and/or resilient fit.
• the parallel members e.g. parallel transverse members
• the parallel members are positioned at determined mutual distance and are possibly secured at such positions by means of spacers which need no particular strength, following which the preferably tubular rods serving as coupling means are inserted in the portion of the holes having a large diameter.
• the rods When the rods have been passed through the holes in both or all transverse members, they are, e.g. by hammer blows, pressed into the portion of the holes having a small diameter, thereby securing the individual members in relation to each other, and the structure is completed.
• the coupling rods make the structure sufficiently rigid transversely of the longitudinal direction of the side members, thereby rendering either the longitudinal or transverse members of the prior structures superfluous.
• the side members thus rendered superfluous may, if desired, be replaced by comparatively slight panels, for instance constituted by the above mentioned spacers.
• the assembly according to the invention may be easily accomplished on the site of use, it is simple and quick to carry out and there is, practically spoken, no risks of failure, even without particular directions for mounting.
• Danish patent No. 131,355 discloses a grid with longitudinal and transverse rods extending perpendicular to each other, slots having an oblique or curved bottom and a protuberance formed above said bottom and projecting into the slot being formed in the longitudinal rods, while slots are provided in the transverse rods, said slots having for instance a depth corresponding to about half the height of said transverse rods.
• the protuberances in the slots of the longitudinal rods penetrate the material in those parts of the transverse rods positioned in alignment with their slots, and by continuing pressing the transverse rods into the slots of the longitudinal rods the slots in the material of the transverse rods formed by the protuberances provided in the slots of the longitudinal rods are closed, so that the transverse rods are securely fastened - but also permanently - to the longitudinal rods. It is not possible to disconnect the assembly without damaging the rods. However, an assembly according to the invention may easily be disconnected, e.g. by a hammer blow, if it is desired to disconnect the assembly, e.g. by altering or rebuilding a frame structure.
• the particular assembling technique according to the present invention is inter alia considerably advantageeously applicable in connection with carriages for mobile shelves in storage and archives systems and an embodiment of the invention particularly advantageous for that special purpose is characterized in that at least two parallel transverse members are connected at their ends with spacers, that at least one hole in the form of two intercommunicating, preferably partially circular hole parts with different diameters is provided in each transverse member, and that a preferably tubular rod projects through said holes, the diameter of said rod being smaller than the diameter of the largest hole parts and equal to or a little larger than the diameter of the smallest hole parts.
• Fig. 1 illustrates the opening phase of the assembling of a frame for a carriage for a mobile shelf
• Fig. 2 illustrates the completed assembly
• Fig. 3 illustrates on a larger scale a transverse member or beam with releasably inserted connecting rod or tube
• Fig. 4 is an illustration corresponding to Fig. 3 but with the coupling rod or tube in the locking position
• Fig. 5 is a schematical illustration of an alternative embodiment of the invention.
• Fig. 1 shows three parallel beams or transverse members 1 adapted to form part of the supporting frame of a carriage for a mobile shelf arrangement.
• the transverse members 1 are positioned at the desired mutual distance c/c and they may be fixed at this point by means of panels 2 secured on hook means 3, see Figs 3 and 4, and serving as spacers.
• each hole 4 consists in a hole part 4a having a diameter a little larger than the diameter of a coupling tube 5 inserted in the hole 4a and a hole part 4b in which the tube 5 matches with a tight and/or resilient fit.
• the hole part 4b may have a diameter equal to or a little smaller than the diameter of the tube 5 and for instance 1 to 2 mm smaller than the diameter of the hole part 4a.
• the tubes 5 are passed through the hole parts 4a with large diameter of the holes 4 on to the position illustrated in Fig. 2 in which the tubes 5 protrude through all holes, in the example three holes.
• the tubes 5 are subsequently radially subjected to stress, for instance by hammer blows, so as to be pressed past the constriction between the hole parts 4a and 4b due to material resiliency of the tube and into the hole parts 4b as illustrated in Figs 2 and 4.
• the structure is then locked and the frame is completed.
• the tubes 5 make the completed frame sufficiently stiff in the frame plane and beams or side members extending transversely of the transverse members 1 may be renounced.
• the most outlying holes, not further specified, in the transverse members 1 are adapted to receive shafts, not shown, for wheels.
• the connecting rods 5 are shown as tubes with a circular cross-section, but it will be recognized that the invention may as well and quite analogously be realized with rods of other profile shape, as well as the holes 4, i.e. the hole parts 4a and 4b may have other shapes than the illustrated one, where the hole parts 4a and 4b are partially circular.
• An example of an alternative embodiment is outlined in Fig.
• a connecting rod 5' in the form of a square tube, that might also be a solid rod as in the embodiment according to Figs 1 to 4, cooperates with a hole 4' constituted by a partially circular hole part 4a' and a hole part 4b' communicating therewith and shaped as a partially square part adapted to receive the rod 5' with a tight and/or elastic fit.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Assembled Shelves (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=8091639

Family Applications (1)

Country Status (4)

Family Cites Families (4)

• 1986
  • 1986-01-20 DK DK26986A patent/DK153045C/da not_active IP Right Cessation
• 1987
  • 1987-01-19 WO PCT/DK1987/000003 patent/WO1987004501A1/en not_active Ceased
  • 1987-01-19 EP EP19870901032 patent/EP0253876A1/en not_active Withdrawn
  • 1987-01-19 AU AU69359/87A patent/AU6935987A/en not_active Abandoned

Non-Patent Citations (1)

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