FI81530C - SLAEPMONTERINGSSTAELLNING FOER ANSLUTNING TILL EN BIL. - Google Patents

Description

81 530

Car-mounted rear mounting bracket

The invention relates to a rear-mounted crane to be connected to a car, in particular a timber truck or the like, to support a hydraulically operated crane, which rear mounting bracket comprises two rods for connecting it to cores or the like at the rear of the car and a crane bench.

10 The disadvantage of the known rear mounting brackets for cars is that they are quite laborious and time-consuming to connect to the car: the connection requires the connection of several hoses and due to the fact that the work is often done in difficult terrain and in all seasons - sometimes even many times. per day can be considered to be unreasonably cumbersome to connect known rear mounting brackets. The annoyance of Kyt fieldwork is increased by the fact that the hoses to be connected are usually oily and / or dirty. Another problem with the known rear mounting brackets, due to their traditional method of coupling, is that the hydraulic system using them easily enters contaminants that consume the hydraulic clutch system and can cause malfunctions in the hydraulic system. A third problem with known rear mounting brackets is that they are designed to be coupled to a car comprising a virtually complete hydraulic system with hydraulic oil tanks, pumps, transfer cylinders, pipes, 30 valves, etc. Such a hydraulic system increases the car's weight by about 300-400 kg. correspondingly decreases by 300-400 kg. The reduction in load capacity by that amount must be regarded as a significant disadvantage. Increasing the car's weight also increases its fuel consumption. There are a further 2,81530 environmental contaminants associated with known rear mounting brackets due to the impossibility of monitoring the operation of pipelines under the load compartment during oil loading, as a result of which oil spills can cause up to 200-5,300 liters of oil to escape.

It is an object of the present invention to obviate said problems associated with known rear mounting brackets. In order to achieve this object, the rear mounting bracket according to the invention is mainly characterized in that a hydraulic system using a crane is mounted on the rear mounting bracket, which includes coupling means for driving the hydraulic system by means of a power source in the vehicle. Preferably, the coupling means are associated with the hydraulic pump-15 of the hydraulic system and comprise a quick coupler shaft, one end of which is for attachment to the hydraulic pump shaft and the opposite end to the transmission shaft of the car. The arrangements allow the hydraulic system to be operated by a power source in the vehicle. Preferably, the coupling lines are connected to a sliding beam transverse to the rods of the rear mounting bracket to which a hydraulic pump is attached, which sliding beam is movable by a transfer cylinder or otherwise in the longitudinal direction of the rods, and to which hydraulic hooks

The sliding beam allows the rear mounting bracket to be quickly and securely attached to the car by transfer means (transfer cylinders or otherwise) which are traditionally placed in the car but which, according to the invention, are fitted to the rear mounting bracket.

The main advantages of the rear mounting bracket according to the invention are that, in the absence of hose handling, it can be connected to the car quickly and easily, preferably from the crane seat by means of control valves; the hydraulic system using the crane of the stern-35 mounting bracket is closed, so that no contaminants can enter it, which

II

Thanks to the 3 81530, the reliability and service life of the hydraulic system are decisively improved while the need for maintenance is kept to a minimum, and the rear mounting bracket improves the load capacity of the vehicle using it by reducing the vehicle weight by 300-400 kg 5. Furthermore, since the hydraulic system is fitted to the rear mounting bracket, its operation can be monitored during loading.

The invention will now be described in detail by means of two embodiments with reference to the accompanying drawing, in which Fig. 1 is an overview of a rear mounting bracket connected to a timber vehicle, Fig. 2 is a top view of a prior art rear mounting bracket connected to a car of Fig. 1; Fig. 4 is a top plan view of an embodiment of a rear mounting bracket according to the invention taken close to the car to which it is to be connected; and Fig. 4 is a reduced top view of another embodiment of a rear mounting bracket according to the invention connected to a car.

In Figure 1, the rear mounting bracket is indicated by reference number 1 and the timber truck by reference number 2. Rear mounting-25 The crane for sleep 1 is generally indicated by reference number 3. The crane bench is indicated by reference number 4 and the crane seat by reference number 5. Reference number 6 is shown. to the timber truck 2 by means of rods 7 projecting into the sleeves 8 at the rear of the timber truck 30. The ends of the rods 7 are chamfered to facilitate their fitting to the sleeves 8.

Figure 2 shows a top view of a conventional type rear mounting bracket connected to a timber-35 spare car. For simplicity, no crane for the rear mounting bracket is shown in the figure. The figure shows used parts from the reference number as in Figure 1 for the corresponding parts 4 81530. It can be seen from Figure 2 that the timber truck 2 'is fitted with a hydraulic system comprising an oil tank 9', pumps, a large number of hoses, generally indicated by reference numeral 10 ', valves, operating levers, 5 a rear mounting bracket for a transfer cylinder 12' mounted on a beam 11 '. 1 'relative to and secured to the timber truck 2', etc. The hoses 10 * of the hydraulic system of the timber truck 2 'are attached immediately behind the beam 11' of the timber truck to the corresponding hoses 13 * of the rear mounting bracket 1 '10. Due to the large number of hoses, several connections are required. It can also be seen from Figure 2 that the hoses 10 ', 13' with their connectors are located below the working space of the timber truck rear mounting bracket assembly.

Fig. 3 shows a top view of the attachment of the rear mounting bracket 1 "according to the invention to the truck 2n. The rear mounting bracket 1" is close to the truck 2 ", but the connection of the bracket 1" to the car 2 "is not completed in the figure. The same reference numerals are used. as in Figures 1 and 2 for the corresponding parts 20. Conventionally, the hydraulic system placed in the truck is, in the case of Figure 3, placed in the rear mounting bracket 1 ". The hydraulic system pump 14 "is attached to a sliding beam 15" transverse to the stems 7 "of the rear mounting bracket. The sliding beam 15" is displaceable in the web of the I-shaped rods 7 "by a transfer cylinder 12" or otherwise, Hydraulic hooks 16 "are attached to the sliding beam 15", by means of which the rear mounting bracket 1 "can be connected to the truck 2" to the corresponding connecting members 17 "at its rear. When the truck 2 "reverses the rear mounting bracket 1", the bars 7 "are guided to the sleeves 8" at the rear of the truck. The sleeves 8 "are rectangular cross-section steel-35 pipes with a size of 600x150x130 mm. The shape and size of the rods 7" and the sleeves 8 "can of course vary. It facilitates the steering of the stern 7" rods 7 "to the sleeves 8", that the ends of the rods are chamfered. The pump 14 "of the hydraulic system of the stern mount 1 is driven by the transmission shaft of a truck 2", which shaft 5 is generally indicated by reference numeral 18 ". A claw switch 19" is connected between the pump 14 "and the transmission shaft. 14 "is driven towards the transmission shaft. The jaw clutch 19" is positioned on the car's extended shaft shaft 18 "so that the end joint 20" of the shaft 10 is stiffened by a coil spring 21 ". The operating position of the fork clutch 19 "is ensured by a helical spring 22" parallel to the shaft 18 ", which is mounted on the slider 23" on the shaft. A coil spring 22 "compresses the flanges 24" attached to the shaft. The rear portion of the 18 "shaft of the transmission 15, denoted by reference numeral 25", is supported on a rack 26 "below it by support bearings 27". This arrangement allows vertical movement to allow the claw switch 19 "to be connected to the pump 14" in the rear mounting bracket. 20 The crane bench 4 "is attached to the handles 7" with a sliding attachment. The transfer of the crane bench 4 "with respect to the rods 7" is handled hydraulically from the crane seat. Alternatively, the movement is handled by a hydraulic guide mounted on the support leg beam 6 ". The support time-25 beam 6" is also attached to the handles 7 "by a sliding attachment.

Figure 4 is a top view of an alternative rear mounting bracket 1 '' 'according to the invention and its attachment to a truck 21. In the figure where the stern-30 mounting bracket 1 '' 'is connected to the truck 2' '', the same reference numerals are used as in Figs. 1-3 for the corresponding parts. Instead of the fork coupling, the embodiment of Figure 4 comprises a manual quick coupling shaft 27 '' ', one end of which is intended to be attached to the shaft of the hydraulic 35 pump 14' ''.

Claims (6)

A tow mounting position (1 ”, 1 * *’) for connection to a car, in particular a wooden van (2) or equivalent, and for supporting a hydraulically driven crane (3), the tow mounting position comprising two switches (7). ", 7,, (f) for connecting the same in sleeves (8", 8 "") or 1 correspondingly in the rear of the car (2) and a crane bench (4 ", 4" "), the towing mounting position (1", 1 '') 10 comprises quick coupling means for connecting the same to the car (2), characterized in that a hydraulic system which drives the crane (3), associated with coupling means (19 ", 271'1) for driving the hydraulic system, is mounted in the tow mounting position. by means of a power source present in the vehicle 15. Trailer mounting position according to claim 1, characterized in that the coupling means are connected to the hydraulic pump (14 '' ') of the hydraulic system and comprise a quick-coupling shaft (27' ''), one end of which 20 is intended to be attached to the hydraulic pump (14 '). '') shaft and the opposite end of the car's transmission shaft (ie '”). Trailer mounting position according to claim 1, characterized in that the coupling means are connected to the hydraulic pump (14 ") of the hydraulic system and comprises a clutch coupling (19"), whose operating position is secured by a spring (21 ") for connecting the hydraulic system. the pump to the transmission shaft of the car (2). Trailer mounting position according to claim 3, 30, characterized in that a drive shaft part (25 ") is connected to the clutch coupling (19"), which drive shaft part is supported by a support bearing (27 ") rotatably supported on top of the stand (26"). Trailer mounting position according to claim 2 or 3, characterized in that the coupling means are connected to a transverse end (7 ", 7 '*') of the coupling means (1", 1 * 1 ') in relation to the trailer mounting position (1 ", 1 * 1'). slide bar (15 ", 15" ') into which is mounted the hydraulic pump (14 ", W1'), which slide bar can be displaced by means of a sliding cylinder (12", 12 * '') or otherwise in the longitudinal direction of the switches and in which hydraulically driven hooks (16 ", 16" '') are fixed for attaching the towing mounting position to the corresponding coupling means (17 ", 17 '' ') of the car (2", 2 "' ') Trailer mounting position according to claim 5, characterized in that the sliding beam (15 ", 15" ') is designed to run in the Hv of the I-shaped switches (7 ", 7"' ').