WO1993004241A1

WO1993004241A1 - Rod with securing device

Info

Publication number: WO1993004241A1
Application number: PCT/EP1992/001764
Authority: WO
Inventors: Michael Dreikluft
Original assignee: Leitner Gmbh
Priority date: 1991-08-15
Filing date: 1992-08-04
Publication date: 1993-03-04

Abstract

A rod (13) has a securing device for securing it to a column (11) having a threaded drilling (52). To this end the rod (13), viewed in cross-section, has a recess (20) in the central region. Here there are two transverse walls (34, 35) each having a drilling (33, 33') for the shank (32) of a screw (16). There is an abutment (36) on the shank (32) and between said abutment (38) and one of the transverse walls (34) is fitted a spring (38). There is at least one side aperture (50, 51) in the rod (13), preferably in the shape of an elongated hole in a region required for access to the head of the screw (16).

Description

Rod with a connection arrangement

The invention relates to a rod with a connection arrangement for connection to a part provided with threaded bores.

For trade fair stands and similar temporary structures in particular, arrangements are required that can be quickly assembled and dismantled just as quickly after the trade fair. For example, rods or other elements must be attached to vertical columns, which often have a circular cylindrical outer profile and which are provided with threaded holes on their circumference. Likewise, there is often the requirement to mount such rods on a node part which is provided with threaded holes. The latter shows e.g. EP-A-0 297 033.

The object of the invention is to provide a new rod provided with a connecting arrangement.

According to the invention, this object is achieved by a rod with a connection arrangement for connection to a part provided with threaded bores, which rod, seen in cross section, has a recess in its central region, in which two transverse walls spaced apart from one another are arranged in the longitudinal direction of the rod , which transverse walls are each provided with a recess through which the shaft of a screw extends, with an abutment arranged on this shaft, and with a spring which is arranged between this abutment and that transverse wall which is closer to that end of the rod , which is designed to bear against the organ provided with threaded holes. Thanks to the abutment and the spring, the screw - before assembly - can be held in a position in the end area of the rod that is favorable for assembly, and it can be easily rotated - during assembly or disassembly - without getting lost because the abutment turns with it when pressed. After assembly, the head of the screw lies against the inner transverse wall and presses the rod against the part provided with threaded holes. The above object is also achieved by a rod with a connection arrangement for connection to a part provided with threaded bores, which rod, seen in cross section, in its

Middle region has a recess in which two in

Longitudinal direction of the rod at a distance from each other

Cross walls are arranged, the first of which is closer to the adjacent

Rod end lies as the second and each with one

Recess is provided, through which the shaft of the screw extends, with one on this shaft and between the two

Transverse walls arranged abutment, and with a spring arrangement which the screw in one of the first transverse wall to the second

Transverse wall applied direction. Here, too

Screw before assembly in a favorable for assembly

Position held because the spring acts on it with a force vector, the direction of which by the direction from the first to the second

Transverse wall is defined, that is from the end of the rod inwards. The

In the unassembled state, the abutment lies against the second transverse wall and thereby defines a predetermined position of the screw before assembly.

The rod is particularly advantageously designed such that the two transverse walls are formed as part of a link which is fastened in the recess, the link being formed in a particularly preferred manner in the manner of a tube with a rectangular cross section.

A very advantageous embodiment is characterized in that the abutment is designed as a nut and preferably as a self-locking nut which is screwed onto the thread of the screw. This allows a very simple assembly of the screw in the rod. It is also advantageous to proceed in such a way that the spring is designed as a weak spring. This is found to be particularly advantageous when many such rods are to be installed. An extremely simple design results from the fact that the

Screw is designed as a hexagon socket screw, since such, e.g. by means of a hexagon screwdriver with hexagonal

Ball head, can also be operated from the side. For this purpose, one proceeds with great advantage that the rod in one necessary for access to the head of the screw

Area is provided with at least one lateral opening, in particular in the form of an elongated hole. Through this side

Opening can. e.g. a hex screwdriver of the specified

Type are introduced and then allows a simple movement and rotation of the screw to the concerned

Attach or detach the rod. You can also use a screwdriver with a flexible shaft, or a screwdriver with a

Universal joint.

Further details and advantageous developments of the invention result from the exemplary embodiments described below and shown in the drawing, which are in no way to be understood as a restriction of the invention, and from the remaining subclaims. It shows:

1 shows a longitudinal section through a rod according to the invention, which is attached to a round column. the rod is cut along the line I-I of Fig. 2,

2 shows a section through the rod, seen along the line II-II of FIG. 1,

3 is an enlarged view of a rod according to the invention, seen along the line III-III of FIG. 4,

4 shows a section through such a rod (in an enlarged view), seen along the line IV-IV of FIG. 3, 5 shows a representation of two vertical round columns which are connected to one another by two horizontal bars according to the invention with a short pitch,

6 - 8 representations analogous to FIG. 5 but with increasingly larger grid dimensions with horizontal bars according to the invention,

9 is a plan view of a sliding block or slot nut for use in a rod according to the invention, viewed in the direction of arrow XI of FIG. 11,

Fig. 10 is a side view of the sliding or sliding block of Fig. 9, viewed in the direction of arrow X of Fig. 9, and

11 is a side view of the sliding or sliding block of FIGS. 9 and 10, viewed in the direction of arrow XI of FIG. 9.

Figure 1 shows part of a frame, e.g. for an exhibition stand.

Displays, showcases etc. can be attached to this frame, e.g. by simply hanging it, cf. the DE-GM 9 101

423.9, which shows such a showcase in FIG. 14. Of this

1, a vertical round column 11 is visible in the frame, which is also shown in FIGS. 5 to 8 and which corresponds to a second round column 12 parallel to it, as shown in FIGS

5 to 8 is shown. Possibly. can connect further round columns. The round columns 11, 12 can each be provided with a height adjuster at the bottom, cf. DE-GM 9 101423.9,

Parts 13 and 14 of FIG. 1 there

The horizontal bars 13 and 14 shown in FIG. 1 serve to connect the round columns 11, 12.

For attachment to the columns 11, 12, these are provided with radially arranged internal threads, specifically in the form of thread rivets 52 which, according to FIG. 1, have a uniform angular distance of, for example 45 ° are arranged on the circumference of the round tube 11 and open inwards and outwards. Such rivets 52 are arranged on the round tube 11 in different levels (floors), cf. eg levels 53 to 58 in Fig. 1 of DE-GM 9 101423.9.

The rods 13, 14 are each connected to such a threaded rivet 52 at the desired point by means of an Allen screw 16. The head of the screw 16 is denoted by 15, and the hexagon socket in this head is denoted by 15 '. The shaft of the screw 16 is designated 16 '.

The rods 13, 14 themselves are each in the form of a precision steel tube (profile rod), as shown in cross-section in FIGS. 2 and 4. Such a profile bar can e.g. have an outer diameter of 30 mm. At both ends it is provided with a fitting profile 17 which is adapted in the manner shown in FIG. 1 to the round outer shape of the round columns 11, 12 and which conforms to it during attachment. As shown in Fig. 4, the cross-section of the profile has a rectangular recess 20 on the inside, which e.g. in the case of a tube 13 with an outer diameter of 30 mm, the dimensions can be 11 x 20.6 mm. In addition to the broad sides of this recess, separated by a thin wall 21, 22 (for example 1.25 mm thick), there are T-shaped recesses 23, 24 which are each accessible from the outside through openings 25, 26 and into which sliding blocks 70 ( 9 to 11) can be used.

In the vicinity of the ends 17, a section 30 of a rectangular tube is inserted into the profile tubes 13, 14, as shown clearly in FIG. 1.

Before assembly of this section 30, some parts are assembled in it, as shown in FIGS. 1 and 3, namely the shaft 16 ′ of the hexagon socket screw 16 provided with an external thread 32, which each has a bore 33, 33 ′ of a corresponding transverse wall 34 , 35 of section 30 penetrates with play. An abutment is applied to the thread 32, for example, as shown, in the form of a self-locking nut 36, which can therefore only be turned on the thread 32 using a considerable torque, and which consequently also rotates when the screw 16 rotates and therefore does not change its position relative to screw 16.

It should be inserted here that any other part is naturally also possible as an abutment 36, and that in the exemplary embodiment the abutment 36 is located on that portion of the shaft 16 'of the screw 16 on which a thread is not necessary for the function, so that - when using a different type of abutment - you can simply provide a smooth cylindrical section (not shown). This is also within the scope of the present invention.

Between the abutment 36 and the transverse wall 34, which is closer to

Cuddly profile 17 is a weak coil spring

38 is provided, which is expediently arranged around the shaft 16 '. This is chosen approximately in its strength and prestress so that it is not yet compressed by the weight of the screw 16. This spring 38 thus prevents the screw 16 from hanging loosely in the corresponding end of the rod 13, and it makes assembly considerably easier since, as shown, it presses the screw 16 into such a position that its free position

End does not protrude or hardly protrudes from the fitting profile 17.

In part 30, the screw 16 together with the abutment 36 and spring 38 is thus mounted, and then this part 30 is inserted from the free end into the rectangular recess 20 of the rod 13 in the manner shown.

The longitudinal walls 40, 41 of part 30 are each provided with a threaded bore 40 ', 41', which in the assembled state is aligned with corresponding transverse bores 42, 43 of the profile tube 13, and corresponding countersunk screws are then inserted into these threaded bores 40 ', 41' 46, 47 screwed and hold the part 30 there in the desired position.

To access the hexagon socket 15 'of the hexagon screw

16 to enable, are two opposite each other in the profile tube 13, 14

Elongated holes 50, 51 are provided through which a ball-head screwdriver, indicated only schematically at 52, can be inserted in order to turn the screw 16. The elongated holes 50, 51 penetrate, as shown, the thick wall sections of the relevant one

Staff.

In an analogous manner, the head of a lateral screw 46 'and the lateral openings 50', 51 'can be seen in the rod 14.

To assemble, press with the screwdriver 52 against the force of the spring 38 on the head 15 of the screw 16, whereby its free end gets into the associated threaded rivet 52, and then turn the screw 16 clockwise until its head 15 against the Transverse wall 35 abuts. Characterized the rod 13 is pressed with its end 17 against the round tube 11 and held there in the desired position, and secured against rotation.

The loosening takes place in the opposite direction, the spring 38 pressing the screw 16 into its position shown after it has been completely unscrewed from the threads of the threaded rivet 52. This enables the subsequent insertion or removal of such profile bars 13, 14 in or from an already set up frame.

The T-slots 23, 24 make it possible to fasten any parts there, in particular by means of the sliding or sliding blocks 70 shown in FIGS. 9 to 11, which can be inserted into these grooves. Fig. 5 shows a frame with two vertical round tubes 11, 12, which are connected by two short horizontal profile tubes 13, 56, between which there is a plate 57, which can be provided with a label, for example. The profile tube 56 is of the same design as the profile tube 13.

Fig. 6 shows a similar frame with two longer horizontal profile tubes 13, 58, between which a plate 59 is located.

Fig. 7 shows a frame with two even longer horizontal profile tubes 13, 62, between which there is partly a vertical plate 63 and partly air. The fastenings of the tubes 56, 58, 62 are of the same design, as shown in FIGS. 1 to 4. The arrangement according to FIG. 7 appears airier and lighter than that according to FIG. 6.

^■ Analog Fig. 8 shows a structure having two long horizontal section tubes 13, 64, between which is partly greater plate 65, and partially air.

In an analogous manner, corresponding parts can also be attached to the other T-slots of the profile tube, which e.g. against theft is very cheap, since a thief cannot depend on anything and he will usually lack the special screwdriver required for disassembly.

9 to 11, which are drawn on the same scale as FIGS. 3 and 4, show a sliding block or slot nut 70 according to the invention, which is designed to be in one of the T-shaped recesses 23, 24 (FIG. 4) a bar to be arranged. The slot nut 70 therefore has a wider part 71 and a narrower part 72 in cross section, the latter being adapted to the width of the openings 25 and 26, respectively. In the middle of the sliding or sliding block 10 has a longitudinal groove 74, and this, as shown, has in its center a continuous threaded bore 75 which serves to receive a set screw (not shown), which is preferably provided with a hexagon socket (not shown) is. With this grub screw, the sliding block or slot nut 70 can be fixed at any point of the T-shaped recesses 23 ^' or 24.

In the narrower part 72, two threaded bores 76, 77 are provided in the manner shown, into which corresponding dowel pins (not shown) can be screwed. They serve to fasten any part 79, which is indicated by dash-dotted lines in Fig. 11, in the longitudinal groove 74, e.g. the plate 57 of FIG. 5 or the plate 59 of FIG. 6. This part 79 can be very easily attached to or removed from the longitudinal groove 74, and together with the sliding block 70 it can very easily along a rod 13 or 14 or 62 or 64 can be moved to the desired position.

A sliding or sliding block according to the invention thus combines the advantage of simple assembly and use with the advantage of security against theft, since special tools are usually required to loosen the screws.

Naturally, numerous modifications and modifications are possible within the scope of the present invention.

Claims

1. rod with a connection arrangement for connection to a threaded bore (52) provided part (11), which rod (13, 14), seen in cross section, has in its central region a recess (20) in which two in the longitudinal direction of the rod transverse walls (34, 35) which are spaced apart from one another, which transverse walls are each provided with a recess (33, 33 ') through which the shaft (16 ¹ ) of a screw (16) extends, with a shaft (16) 16 ') arranged abutment (36), and with a spring (38) which is arranged between this abutment (36) and that transverse wall (34) which is closer to that end (17) of the rod (13, 14), which serves to bear against the organ (11, 12) provided with threaded bores (52).

2. Rod with a connection arrangement for connection to a part (11) provided with threaded bores (52), which rod, seen in cross section, has in its central region a recess (20) in which two transverse walls spaced apart from one another in the longitudinal direction of the rod (34, 35) are arranged, of which the first (34) is closer to the adjacent rod end (17) than the second (35), and each of which is provided with a recess (33, 33 ') through which the Shaft (16 ') of a screw (16) extends, with an abutment (36) arranged on this shaft (16') and between the two transverse walls (34, 35), and with a spring arrangement (38) which the screw (16 ) in a from the first transverse wall (34) to the second transverse wall

(35) going direction.

3. Rod according to claim 2, characterized in that the spring (38) between the first transverse wall (34) and the abutment

(36) is arranged.

4. Rod according to one or more of the preceding claims, characterized in that the two transverse walls (34, 35) are designed as parts of a link (30) which is fixed in the recess (20) (46, 47).

5. Rod according to claim 4, characterized in that the link (30) is designed in the manner of a tube with a rectangular cross section.

6. Rod according to one or more of claims 1 to 5, characterized in that the abutment is designed as a nut (36) - and preferably as a self-locking nut, which nut (36) on the thread (32) of the screw (16) is screwed on.

7. Rod according to one or more of claims 1 to 6, characterized in that the spring (38) is designed as a weak spring.

8. Rod according to one or more of the preceding claims, characterized in that the screw (16) is designed as a hexagon socket screw.

9. Rod according to one or more of the preceding claims, characterized in that it is in one for access to the

Head (15) of the screw (16) required area is provided with at least one lateral opening (50, 51), in particular in the form of an elongated hole.

10. Rod according to claim 9, characterized in that such a lateral opening (50, 51) is provided on two opposite sides of the rod (13).

11. Rod according to one or more of the preceding claims, characterized in that it is designed as a profile rod.

12. Rod according to claim 11, characterized in that it is provided in an edge region with at least one recess (23, 24) which is approximately T-shaped in cross section.

13. Rod according to claim 12, characterized in that the cross-sectionally T-shaped recess (23, 24) is provided in the upper and / or lower edge region of the rod (14) after assembly (FIG. 2).

14. Rod according to claim 12 or 13, characterized in that in the cross-sectionally T-shaped recess (23, 24) with a longitudinal groove (74) provided nut block (70) is arranged, and that in this longitudinal groove (74) Edge of a plate (57; 59; 63; 65) is fastened, the opposite edge of which in turn is arranged in a corresponding longitudinal groove (74) of a slot nut (70) arranged in another rod (56; 58; 62; 64).

15. Rod according to one or more of the preceding claims, characterized in that it is provided on an end provided for abutment on the organ provided with threaded bores (11, 12) with a corresponding fitting profile (17).

16. Use of a rod according to one or more of the preceding claims for mounting on a column provided with threaded holes with a circular cylindrical outer profile.