A DEVICE FOR ANCHORING A POLE ON A TRUCK AND A POLE FOR A TRUCK

Abstract: A device for anchoring a post (15) to a load-carrying vehicle, comprising a holder (2) which holds the post in an upstanding position with a given clearance between the post and the holder. The device further comprises a locking arrangement (11-14) for detachably locking the post in the holder. This locking arrangement is provided with means (11-14) for adjusting the position of the post (15) transversely to its longitudinal axis, so as to bring the post to a predetermined position in the holder (2), and for locking the post in the holder by displacing the post generally at right angles to the adjusting direction. A post which is intended to be locked detachably in the holder by means of the locking arrangement has channels (17) and/or ridges (19, 20) which extend in the longitudinal direction of the post and which are engaged by the locking arrangement.

Description: A device for anchoring a pole on a truck and a pole for a truck DESCRIPTION Technical Field The present invention relates to a device for anchoring a post to a load-carrying vehicle, such as a truck, for instance, and also to a post for such a vehicle. Description of the Known Prior Art A large number of devices by means of which posts can be anchored to load-carrying vehicles, such as trucks, are known to the art. Many different types of post are also known. Examples of such post-anchoring devices and post constructions are disclosed in Swedish Layout Print 451,987, German Auslegeschrift 1,455,895 and U.S. Patent Specification 1,001,690. These known post-anchoring devices are of a complicated design and include a large number of components and/or do not provide a safe and "rattle-free 1 - anchorage that can be established and dismantled rapidly. The known posts are often too heavy or too bulky in relation to their mechanical strengths or have configurations which prevent the post-anchoring devices from being given a simple, safe and rattle-free construction„ Summary of the Invention An object of the present invention is to provide an improved post-anchoring device and post with which the aforesaid drawbacks of known devices and known posts are at least partially eliminated. This object is fulfilled by means of the present inven¬ tion as characterized by the features set forth in the characterizing clauses of respective Claims. Brief Description of the Drawings Figure 1 is a schematic, perspective view of an inven¬ tive device for anchoring a post to a load-carrying vehicle and also shows part of an inventive post an- chored by means of said device; Figure 2 is a front view of the device shown in Figure 1; Figure 3 is a side view of the device shown in Figure 1; Figures 4 and 5 illustrate the device and the post shown in Figure 1 from above; Figure 6 is a perspective view which illustrates the post shown partially in Figure 1; and Figure 7 is a perspective view which illustrates a reinforcement included in the post shown in Figures 1 and 6. Best Modes of Carrying Out the Invention The anchoring device 1 illustrated in Figures 1-5 is mounted on one side of a load-carrying vehicle, such as a railway truck. This one side of the truck is shown in Figure 1 as an elongated, horizontal beam B. The upper part of the anchoring device is located roughly in the same plane as the load-carrying surface of the truck. The device 1 includes a holder 2, which is screwed or welded firmly to the beam B. The holder 2 is comprised of a bottom plate 3 which is provided with a side recess 4 and which has an angled upper part 3a. The holder also includes a U-shaped sleeve 5 which is welded firmly to the bottom plate 3 and which has an upper reinforcement 10 and two attachments 6 which project out from the sleeve. The sleeve 5 is provided with two side recesses 7 and a rectangular front recess 8. The sleeve 5 is also provided with a bottom piece 9. The attachments 6 are provided with holes which form journalling means for two journal axles 11 of an eccen¬ tric device which is comprised of two rollers 12 on which the journal axles 11 are mounted, and a shaft 13 which connects the rollers. Each roller 12 tapers coni- cally towards the other roller and is circular-cylindri¬ cal in a direction from said other roller. The shaft 13 is connected centrally with the rollers 12 and is pro¬ vided with a rod 14 having a spacer element 14a which is able to lie against the sleeve 5. The journal axles 11 and the holes in the attachments 6 are located on mutu¬ ally the same axis line as that spaced from the common axis line of the shaft 13 and the rollers 12. The roll¬ ers 12 can be inserted into the front recess 8 by means of the rod 14. The post to be anchored by means of the aforedescribed device is referenced 15 and is shown partially in Fig¬ ures 1, 4 and 5 and is shown fully in Figure 6. The post 15, which may conveniently be made of steel, aluminium or some other metal alloy, is preferably tapered uni¬ formly upwards, among other things, in order to obtain a fine resiliency and to save material. The post 15 has a rectangular or oblong cross-sectional shape with a side ratio of between 1:4 and 1:6, preferably about 1:5, and has two pairs of mutually identical recesses 16 on the two opposing long sides of the rectangle. The recesses 16 of the illustrated embodiment have a trapezoidal cross-sectional shape although said recesses may have only one surface which defines an angle with the short side of the rectangle, preferably the surface which is located nearest the centre of the rectangle. Each recess 16 has a depth which is equal to about 1/4 of the short side of the rectangle and its width is roughly the same size or slightly greater. The distance of the centre of each recess from the short sides of the rectangle is about 1/4 of the long side of said rectangle. The angle of each recess side to the short side of the rectangle is about 30 ' . According to one preferred embodiment, the rectangle measures about 50 x about 250 mm. The recesses 16 form the ends of four channels or flutes 17 which extend in the direction of the longitudinal axis of the post. The regions between and outside each pair of channels 17 form ridges 19 and 20 respectively. These channels and ridges can be said to form irregularities on the post. The channel 17 and the ridges 19, 20 narrow upwardly to essentially the same extent as the post cross-section. The post has a length of about 2,400 mm. The cross-section of the upper part of the post 15 is closed by swaging and/or filling the same with a weld filling. The post 15 is manufactured with a relatively thin but constant wall thickness so as to produce a comparatively lighter and cheaper post. A reinforcement may be provid¬ ed within the post, so as to improve its mechanical strength. One such reinforcement 18 is shown fitted to the post 15 in Figures 4-6, this reinforcement being different to the reinforcement shown in Figure 7. The reinforcement 18 is conveniently made of steel and has essentially the same material thickness as the post. The reinforcement is preferably spot-welded to the post, subsequent to having been inserted thereinto. The rein¬ forcement 18 narrows upwardly and has an outer cross- sectional dimension which is only slightly smaller than the internal cross-section dimension of the post 15. The reinforcement, however, has an open cross-section so as to enable the cross-dimensions of the reinforcement to be made smaller when inserting the reinforcement into the post from its thicker, open end. After having been inserted into the post, the reinforcement is allowed to spring back to its larger or wider state, through the natural resiliency of the walls of the reinforcement. The reinforcement has a wave-shaped cross-section with certain surface parts in abutment with the inner surface of the post, and imparts to the post a mechanical strength which is essentially equal in the two mutually opposite directions of the post cross-section. Since it is the bottom part of the post that is normally subject¬ ed to the highest bending stresses, it is sufficient for the reinforcement to extend from the bottom part of the post 15 to a distance of from 1/3-2/3 of the length of the post, from said bottom end, preferably a distance of about 1/2. The reinforcement of the illustrated embodi¬ ment has a length of about 1,000 mm. The upper edge 21 of the reinforcement 18 is higher in the centre of the cross-section than in its outer regions, so that bending stresses on the post will be taken-up by the upper end of the reinforcement in re¬ gions located at varying distances from the ends of the post, and therewith improve mechanical strength. When fitting the post 15 to the anchoring device 1, the bottom end of the post is inserted down into the holder 2 until said end rests on the bottom piece 9. It is immaterial whether the post is therewith rotated through 180", since the post is essentially equally as strong in both directions. Since the outer cross-sectional dimen¬ sions of the post are not insignificantly smaller than the inner cro section dimensions of the sleeve 5, so that dirt, rust in the holder and/or on the post will not prevent the post from being brought to its bottom position in the holder 2, the post will be off-centre in the sleeve 5. When the handle 14 is then moved from its bottom posi¬ tion, shown in broken lines in Figure 2, towards its upper position, shown in Figures 1 and 4, the conical surfaces on the rollers 12 will come into contact with one or both of the angled surfaces on the two post channels 17, thereby displacing the post in the direc¬ tion of the longitudinal axis of the vehicle and bring¬ ing said post to a central position in the sleeve 5. In the final stage of this rotary movement of the handle 14, the rollers 12 will exert a heavy force on the post 15 and therewith also press the post towards the bottom plate 3 immediately after finally centering of the post at right angles thereto. When the shaft 13 has taken an overcentre position in relation to the axle journals 11, i.e. the connecting line between the axle journals 11 are located above the centre line of the shaft 13, the post 15 is firmly locked in the holder 2 and the handle 14 is unable to turn back to its bottom position without the application of a heavy force. Even though the invention has been described and illus¬ trated with reference to only one exemplifying embodi¬ ment thereof, it will be understood that the invention is not restricted to this particular embodiment and that the invention is limited solely by the features set forth in the following Claims.

Claims: CLAIMS 1. A device for anchoring a post (15) to a load-carry¬ ing vehicle, said device including a holder (2) which functions to hold the post in an upstanding position with a given clearance between the holder and the post, and further comprises a locking arrangement (11-14) for detachably locking the post in the holder, c h a r ¬ a c t e r i z e d in that the locking arrangement is provided with means (11-14) which include at least one eccentric for engagement with and positional adjustment of the post (15) transversely to its longitudinal axis such as to bring the post to a predetermined position in the holder (2), said locking arrangement functioning to lock the post in the holder by displacing the post essentially at right angles to the adjusting direction. 2. A device according to Claim 1, c h a r a c ¬ t e r i z e d in that the aforesaid means (12) are configured to act on at least one irregularity (17, 19, 20) on the post (15). 3. A device according to Claim 1 or 2, c h a r a c ¬ t e r i z e d in that said means include at least one conical roller (12). 4. A device according to Claim 3, c h a r a c ¬ t e r i z e d in that the at least one roller (12) and the eccentric (11-14) are one and the same means. 5. A device according to Claim 3 or 4, c h a r a c ¬ t e r i z e d by two mutually spaced rollers/eccen¬ trics (11-14) which act on at least one irregularity (17, 19, 20) on the post such as to centre said post in the holder (2) . 6. A device according to Claim 5, c h a r a c ¬ t e r i z e d in that the rollers/eccentrics (11-14) are connected by means of a shaft (13) which is provided with a pivotal handle (14) for rotation of the shaft eccentrically in relation to axle journals (11) which project out from the rollers/eccentrics and which are rotatably mounted in the holder (2) . 7. A post for load-carrying vehicles, said post being intended to be held in an upstanding position and de¬ tachably locked in a vehicle-mounted holder (2) by means of a locking arrangement (11-14), c a r a c ¬ t e r i z e d in that the post (15) has channels (17) and/or ridges (19, 20) which extend in the direction of the longitudinal axis of said post along an essential part of its length and with which said locking arrange¬ ment (11-14) engages. 8. A post according to Claim 7, c h a r a c - t e r i z e d in that the channels (17) and/or the ridges (19, 20) extend along the whole of the post (15) which preferably narrows upwardly. 9. A post according to Claim 7 or 8, c h a r a c - t e r i z e d in that the post has a pair of mutually parallel and mutually spaced channels or flutes (17) on each of two opposite sides of the post and further has a ridge (20) which extends between the two channels of a channel pair. 10. A post according to any one of Claims 7-9, c h a r a c t e r i z e d in that the channels (17) and/or the ridges (19, 20) have a trapezoidal cross- section. 11. A post according to any one of Claims 7-10, c h a r a c t e r i z e d by a reinforcement fitted within the post. 12. A post according to Claim 11, c h a r a c ¬ t e r i z e d in that the reinforcement (18) extends between the bottom part of the post (15) and a point which is spaced from the top part of said post, said point preferably being located at a distance from the bottom part of said post which is equal to 1/3-2/3 of the length of said post. 13. A post according to Claim 11 or 12, c h a r a c ¬ t e r i z e d in that the reinforcement (18) has an open cross-section, preferably a wave-shaped cross- section, with surface parts lying against the grooves (17) and ridges (19, 20) on said post. 14. A post according to any one of Claims 11-13, c h a r a c t e r i z e d in that the upper edge (21) of the reinforcement (18) is higher in the centre of the cross-section than in the outer regions thereof.

Inventors: JONSSON KJELL, JONSSON, KJELL
Applicants: JONSSON KJELL, OLSSON ROLF, ROSENGREN ARNE, JONSSON, KJELL, OLSSON, ROLF, ROSENGREN, ARNE
Application year: 1992
Main classification: B62D33
IPC codes: B62D33