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
  • F16B12/10—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like
  • F16B12/12—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics
  • F16B12/20—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics using clamps, clips, wedges, sliding bolts, or the like
  • F16B12/2009—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics using clamps, clips, wedges, sliding bolts, or the like actuated by rotary motion
  • F16B12/2027—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics using clamps, clips, wedges, sliding bolts, or the like actuated by rotary motion with rotating excenters or wedges
• • 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
  • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
  • F16B7/04—Clamping or clipping connections
  • F16B7/044—Clamping or clipping connections for rods or tubes being in angled relationship
  • F16B7/0446—Clamping or clipping connections for rods or tubes being in angled relationship for tubes using the innerside thereof
  • F16B7/0453—Clamping or clipping connections for rods or tubes being in angled relationship for tubes using the innerside thereof the tubes being drawn towards each other
  • F16B7/046—Clamping or clipping connections for rods or tubes being in angled relationship for tubes using the innerside thereof the tubes being drawn towards each other by rotating an eccenter-mechanism

Definitions

• the invention relates to a connecting device for connecting a first to a second profile rod, of which at least one undercut longitudinal grooves and the other has a cavity for receiving the connecting device and an open end face for carrying out a coupling hook, wherein
• the connecting device has a slide guided in the cavity of the second profile rod
• the slide has a coupling hook which is led out through an opening in the end face of the second profile rod and, in the case of a coupling, is inserted into a longitudinal groove of the first profile rod and can be clamped thereto,
• the second profile rod has an inclined surface and the slider has an inclined shoulder lying against it in the coupling case
• an eccentric with a rotary knob and an eccentric disk is rotatable in the second profile rod and is held axially displaceable transversely to the latter,
• the eccentric is under a spring load such that its rotary knob is pressed into a position accessible from the outside in the rest position
• the eccentric disc is in contact with the slide and, when the rotary knob is turned, moves it between a pushed-out and a pushed-in position, the coupling hook in the pushed-in position pulling and bracing the first profile bar against the second profile bar, and
• This securing device has a surface which is arranged on the end of the slide remote from the coupling hook and which, in the inserted position, runs onto the bottom of the second profile rod.
• Such connecting devices are known in numerous embodiments. Profile bars are connected to a frame with them. This frame then forms a partition or serves as a display support.
• the connecting device essentially consists of elements which are arranged in the second profile rod and are partially displaceable and partially rotatable. One element is the fuse. With this securing, the eccentric is prevented from rotating in the inserted position of the slide — in the case of coupling.
• the securing essentially consists of a stationary stop on the bottom of the second profile rod, which serves as a stop block for the end piece of the slide.
• the eccentric In its inserted position - in the coupling case - the end piece lies on this headstock. In this end position, the eccentric cannot be turned easily. This prevents the connection between the first and the second profile rod from being released by an unintentional turning of the eccentric. To release this connection, the eccentric must be rotated deliberately and with some effort. If the second profile rod, which is often done, is produced in zinc die casting, the formation of the headstock complicates the casting mold. Even when forming the second profile rod as a sheet metal bent and stamped part, the headstock requires some effort.
• the invention is based on the object of designing the securing of such a connecting device in such a way that it can be manufactured more easily. This is said to apply to the production of the second profile rod both in die-cast zinc and as a bent and stamped sheet metal part.
• the connecting device of the type mentioned at the beginning the invention provides two equivalent solutions for this task.
• the first solution is characterized in that the securing means on the outside of the end of the slide which is remote from the coupling hook has tongues bent towards the bottom of the second profile rod and has holes in the bottom of the second profile rod in the path of movement thereof, which are arranged such that the tongues lie above them in the extended position and can dip into them, while the tongues in the inserted position - in the case of coupling - lie outside the holes and stand on the bottom of the second profile bar.
• This structurally simple solution is therefore exhausted in that two or even only one tongue is bent from one end of the slide in the direction of the bottom of the second profile rod and two or only one hole is arranged in the bottom for receiving the tongues or the tongue become.
• the position of the tongue (s) and the hole or holes is coordinated with one another in such a way that the tongue (s) can dip into the holes or the hole in the slid-off position of the slide, while they are in the inserted position of the slide - in the event of a coupling - lie outside the holes or the hole and stand on the bottom of the profile rod.
• a construction that is simpler than bending the end of the slide to form one or more tongues and making one or more holes in the bottom of the second profile bar is hardly conceivable. If the tongue or the tongues are above the hole or the holes, the eccentric can be pressed against its spring load into the second profile rod and rotated. As soon as the tongue or the tongues stand on the bottom of the second profile bar, the eccentric can no longer be easily turned.
• the eccentric disc is in contact with the slide.
• a central tongue is bent in the opposite direction and bears against the eccentric disk. This middle tongue lies against the eccentric disc.
• the second solution according to the invention for the task at hand dispenses with the tongues and the holes in the base of the second profile rod.
• the safety device has a segment-shaped section which partially closes the opening in the bottom of the second profile rod, and at the lower end of the shaft of the eccentric, a segment-shaped extension of the same design is arranged in such a way that it is in a final rotational position of the eccentric, in which this pushes the slide in its extended position, lies over the open part of the opening and in the other end rotary position of the eccentric - in the coupling case - in which it pushes the slide in its retracted position, over the segment-shaped section lies.
• This embodiment is also very simple.
• the eccentric Only requires a partial closure of the opening by a segment-shaped section and an extension of the same design on the shaft of the eccentric. If the extension is in the free part of the opening, the eccentric can be moved axially and transversely to the second profile rod. It is secured when, after a rotation through 180 °, its extension lies over the segment-shaped section.
• the second profile bar is shown as a zinc die-cast part.
• FIG. 2 shows a longitudinal section through the profile bar according to FIG. 1 with a simultaneous partially schematic representation of the first profile bar
• FIG. 3 is a plan view of the second profile rod with the slider in the inserted position
• FIG. 4 shows a longitudinal section through the profile bar according to FIG. 3 with a simultaneous partially schematic representation of the first profile bar
• FIG. 5 is a plan view of the bottom of the second profile rod with a special representation of the two holes for receiving the tongues according to the first solution according to the invention and the formation of the opening according to the second solution according to the invention,
• Fig. 7 is a side view of the same eccentric in a position rotated by 90 °, partly in section.
• Figures 1 to 4 show the first profile rod 12 and the second profile rod 14. This has a cavity 16 for receiving the slider 18. At its end lying on the left in FIGS. 2 and 4, it has an inclined shoulder 20 and a coupling hook 22. This passes through an opening 24 in the profile rod 14. This has an inclined surface 26 in its area above the inclined shoulder 20.
• the figures further show the eccentric 28 with the rotary knob 30, the hexagon socket 32, the shaft 34 and the eccentric disk 36. As shown in particular in FIGS. 2 and 4, this has a projection 38 which results in its eccentricity.
• the shaft 34 passes through a recess 40 in the slide 18.
• the eccentric disc 36 is in contact with the slide 18.
• the tab 42 bent out of the slider 18 serves this purpose.
• the upstanding tongue 44 also serves this purpose. It is located in the middle of the slider 18.
• the bottom of the second profile rod 14, which is denoted by 52 in FIG. 5, has two holes 48. These are arranged so that the two tongues 46 are exactly above them in the extended position of the slide 18.
• FIG. 5 shows the second profile rod 14 with the opening 50 in the bottom 52 thereof.
• FIG. 5 further shows, as already explained, the two holes 48 according to the first solution according to the invention.
• 5 further shows the segment-shaped section 54, which partially closes the opening 50.
• FIGS. 6 and 7 show the design of the eccentric 28 according to the second solution according to the invention.
• the shaft 34 has a segment-shaped extension 56 and a recess 58 that complements it.
• the surface of the extension 56 corresponds to the surface of the section 54. If the eccentric 28 is in a rotational position in which the extension 56 lies above the section 54, the rotary knob 30 cannot be easily turned. The fuse thus becomes effective.
• FIG. 2 shows the slide 18 in its extended position.
• its coupling hook 22 lies freely in a longitudinal groove of the first profile rod 12.
• the two profile rods 12 and 14 are not connected to one another.
• a hexagon is now inserted into the hexagon socket 32 of the eccentric 28.
• the eccentric 28 can be moved axially or transversely to the second profile rod 14. Looking at Fig. 2, this is a downward movement.
• the two tongues 46 dip into the holes 48 in the bottom 52.
• the eccentric 28 is rotated by 180 °, its projection 38 moves from its position shown in FIG. 2 to its position shown in FIG. 4.
• the slider 18 is shifted from left to right when looking at the figures.
• the extension 56 is in the extended position of the slide 18 over the free part of the opening 50.
• the recess 58 lies over the section 54. This means that the Eccentric 28 can be pushed down and rotated. After a rotation through 180 °, in which the overhang 38 assumes its position shown in FIG. 4, the extension 56 stands over the section 54. The eccentric 28 can now no longer be pressed down. The backup takes effect.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Toys (AREA)

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Applications Claiming Priority (2)

Publications (1)

Family

ID=6891210

Family Applications (1)

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Citations (4)

Family Cites Families (3)

• 1993
  • 1993-03-25 DE DE9304538U patent/DE9304538U1/de not_active Expired - Lifetime
• 1994
  • 1994-03-23 AU AU63731/94A patent/AU6373194A/en not_active Abandoned
  • 1994-03-23 WO PCT/DE1994/000285 patent/WO1994021926A1/de active Application Filing

Patent Citations (4)

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