SE455588B

SE455588B - Trailer for telescopic mast

Info

Publication number: SE455588B
Application number: SE8604885A
Authority: SE
Inventors: H Sundquist; G Sundquist
Original assignee: Backens Mekaniska Verkstad Ab
Priority date: 1986-11-14
Filing date: 1986-11-14
Publication date: 1988-07-25
Also published as: SE8604885D0; SE8604885L

Abstract

The trailer for coupling to a towing vehicle accommodates a telescopic mast, particularly one supporting a floodlight. The mast hinges between the vertical working and horizontal transit position on it. In the former position it is supported in a frame and secured to a pillar in the chassis. To lower it into the transit position, the frame (14) hinges on the pillar (8), which in turn hinges on the chassis (1), bringing it into a position parallel to the latter.

Description

15 20 25 30 35 40 455 sas 1 2 handmanövrerad eller motormanövrerad rörelseskruv. 15 20 25 30 35 40 455 sas 1 2 hand-operated or motor-operated movement screw.

Pâ vagnen är anordnat ett stativ som generellt betecknas med 7 och som innefattar en pelare 8 som kan utgöras av två parallella och med varandra förenade balkar 9. Pelaren 8 är med en fotdel 10 förbunden med underredet 1 pà sà sätt, att den efter lösgörande av ett vid varje sida av detta anordnat bultförband ll mellan fotdel 1 och underredet l kan svängas kring en led 12 till det i fig 2 visade läget. Detta läge utgör transportläge för vagnen när denna skall transporteras utan att vara kopplad till ett dragfordon och härvid kan men behöver nödvändigtvis inte masten vara helt lösgjord från sitt stativ 7. Masten är normalt ledbart förenad med stativet 7 genom en axel lagrad i vid pelarens övre del anordnade bussningar 13. Kring denna led är masten svängbar från sitt vertikala användningsläge, i vilket den till ett hopskjutet horisontellt transportläge. I detta hopskjutna även är förbunden med underredet 1 vid sitt nedre ändparti, tillstànd är mastens i_varandra inskjutna sektioner låsta mot inbördes rörelse av ett i mastens nedre sektion anordnat làsorgan i form av en vridbar hake eller motsvarande och denna låsning möjliggör även att masten kan svängas upp till sitt vertikala läge och sedan, efter lösgörande av làsorganet, förlängas genom utskjutning av sektionerna med hjälp av ett enda handmanövrerat eller motordrivet linspel.Arranged on the carriage is a stand which is generally denoted by 7 and which comprises a pillar 8 which may consist of two parallel and interconnected beams 9. The pillar 8 is connected to the chassis 1 by a foot part 10 in such a way that after detachment of a bolt connection 11 arranged on each side thereof between the foot part 1 and the base 1 can be pivoted about a joint 12 to the position shown in Fig. 2. This position constitutes the transport position for the trolley when it is to be transported without being connected to a towing vehicle and in this case the mast cannot but necessarily be completely detached from its frame 7. The mast is normally articulated to the frame 7 through a shaft mounted at the upper part of the pillar. arranged bushings 13. Around this joint the mast is pivotable from its vertical position of use, in which it is pushed to a collapsed horizontal transport position. In this interlocking also are connected to the base 1 at its lower end portion, in this case the interlocking sections of the mast are locked against mutual movement of a locking member arranged in the lower section of the mast or the like and this locking also enables the mast to be swung up to its vertical position and then, after detachment of the locking member, is extended by projecting the sections by means of a single hand-operated or motor-driven line winch.

I mastens sistnämnda horisontella transportläge uppbäres masten hopskjuten av en i stativet ingående bärram 14, som utskjuter vinkelrätt från pelaren 8 och är förbunden med denna med hjälp av två diagonalt anordnade bultförband 15 vid varje pelarbalk 9. Ett av dessa bultförband 15 är anordnat i en vid bärramens respektive balk 16 fäst fästplatta 17 och vid sidan av denna balk för att efter avlägsnandet av det andra bultförbandet 15 vid vardera sidan fungera som en led, kring vilken bärramen 14 är svängbar till ett med pelaren parallellt läge, såsom visas i fig 2 och 4. _ I användningsläget, som visas i fig 1, är såväl pelaren 7 som bärramen 14 stagade inbördes och till underredet l med hjälp av ett stag 18 vid vardera sidan. Dessa stag 18 är medlest bultförband 19 förbundna med underredet 1, pelaren 8 och bärramen 14.In the latter horizontal transport position of the mast, the mast is supported pushed together by a support frame 14 included in the frame, which projects perpendicularly from the column 8 and is connected to it by means of two diagonally arranged bolt joints 15 at each column beam 9. One of these bolt joints 15 is arranged in a wide attached to the respective beam 16 of the support frame 16 and to the side of this beam to function after the removal of the second bolt joint 15 on each side as a joint, around which the support frame 14 is pivotable to a position parallel to the column, as shown in Figs. 2 and 4 In the position of use, shown in Fig. 1, both the column 7 and the support frame 14 are braced relative to each other and to the base 1 by means of a bracket 18 at each side. These struts 18 are connected by means of bolt joints 19 to the base 1, the pillar 8 and the support frame 14.

Föreliggande uppfinning är icke begränsad till det ovan beskrivna och pà ritningarna visade utan kan ändras och 3 455 588 patentkrav definierade uppfinningstanken.The present invention is not limited to the invention described above and shown in the drawings, but may be modified and the inventive concept defined in 3,455,588 claims.

Claims

455 588 PATENTKRBV

A towing vehicle connectable to a towing vehicle for a telescopic mast, preferably for supporting lighting fixtures, for example headlights, which trolley is provided with a stand, in which the mast is pivotally arranged to pivot from a vertical position of use to a substantially horizontal transport position, in which the mast in the collapsed state is supported by a support frame included in the frame connected to a pillar also belonging to the frame, characterized in that the support frame (14) is pivotally connected to the upper end of the column (8) as well as the mast, which in its vertical position is at its lower end connected to the chassis (1), and that the pillar (8) is pivotally connected to the chassis chassis (1) for folding to a position substantially parallel to the chassis, i.e. to a second transport position, in which the support frame (14) is lowered to a position parallel to the column (8).

Trolley according to claim 1, characterized in that in the raised position the support frame (14) and the pillar (8) are mutually braced and braced to the chassis (1) by means of braces (18) arranged at each side.

Trolley according to claim 1 or 2, characterized in that the column (8) is connected to the chassis (1) by a foot part (10) and in a joint (12) pivotable relative thereto after loosening a bolt joint (11) at each side.

Trolley according to one of the preceding claims, characterized in that the support frame (14) is connected to the column (8) by means of at least two bolt joints at each side, one of which (15), after detachment from the other, functions as a joint for pivoting the support frame (14) relative to the pillar (8).

Trolley according to one of the preceding claims, characterized in that the support frame (14) is provided at its end facing the pillar (8) with bushings (13) for a shaft for the pivotable connection of the mast to the frame ( 7). ll