SE469018B

SE469018B - Manually driven load trolley

Info

Publication number: SE469018B
Application number: SE9201070A
Authority: SE
Inventors: Svante Lundgren
Original assignee: Svante Lundgren
Priority date: 1992-04-03
Filing date: 1992-04-03
Publication date: 1993-05-03
Also published as: SE9201070D0; SE9201070L

Abstract

The present invention relates to a manually driven load trolley comprising a frame, two wheels 17 disposed on the frame and having an axle disposed between them, and a raisable and lowerable loading table. The load trolley additionally comprises a supporting wheel, which can be locked in at least two different positions by means of a first control member 6, and a second control member 5 for connecting coupling members 15, 15, disposed next to the wheels 17, for automatic raising of the loading table when the load trolley is advanced and for disconnection of the coupling members 15, 16. <IMAGE>

Description

469 018 2 kärran samt för urkopplande av kopplingsorganen. 469 018 2 the cart and for disengaging the coupling means.

Lastkärran enligt föreliggande uppfinning kommer nu att närmare beskrivas med hänvisning till de bifogade ritningarna, där: 1 Fig. 1 visar en sidovy på en utföringsform av lastkärran enligt föreliggande uppfinning; och Fig. 2 visar en vy bakifrån, delvis i tvärsnitt på den i fig. 1 visade lastkärran enligt föreliggande uppfinning.The truck according to the present invention will now be described in more detail with reference to the accompanying drawings, in which: Fig. 1 shows a side view of an embodiment of the truck according to the present invention; and Fig. 2 shows a rear view, partly in cross section, of the load cart according to the present invention shown in Fig. 1.

I fig. 1 visas en sidovy på lastkärran eller pirran enligt föreliggande uppfinning, vilken kärra innefattar en ram 1 och ett vid ramen 1 anordnat stödhjul 2 vilket är låsbart i åtminstone de två i fig. 1 visade lägena. I det med heldragen linje visade läget är stödhjulet 2 nerfällt och anligger mot lastkärrans underlag varvid man erhåller säker och enkel förflyttning av den lastade kärran utan det ovan nämnda jäm- viktsproblemet. Stödhjulet 2 kan också låsas i det uppfällda läget (visas med streckad linje) lämpat för lastkärrans last- läge. Lastkärran innefattar dessutom två manöverorgan (av vilka endast det ena visas i fig. 1) 5 som är placerade vid last- kärrans vanliga handtag. Manöverorganen 5 kan bestå av kopp- lingshandtag såsom framgår av figuren. Pirran innefattar vidare ett lastbord 3 vilket medelst ett antal utmed ramen 1 glidbara löprullar 10 är höj-resp. sänkbart. Lasten vilken skall tran- sporteras med lastkärran placeras på en mellan två lägen ställbar lastplatta 4. I figuren visas det för lastplattan 4 uppfällda läget med heldragen linje och det nerfällda läget med streckad linje.Fig. 1 shows a side view of the loading wagon or pier according to the present invention, which wagon comprises a frame 1 and a support wheel 2 arranged at the frame 1, which is lockable in at least the two positions shown in Fig. 1. In the position shown in solid line, the support wheel 2 is lowered and abuts against the surface of the carriage, whereby a safe and simple movement of the loaded cart is obtained without the above-mentioned equilibrium problem. The support wheel 2 can also be locked in the folded-up position (shown with a dashed line) suitable for the load position of the truck. The load cart further comprises two operating means (of which only one is shown in Fig. 1) which are placed at the usual handle of the load cart. The operating means 5 may consist of coupling handles as shown in the figure. The pirran further comprises a loading table 3 which by means of a number of running rollers 10 slidable along the frame 1 is raised or raised. submersible. The load which is to be transported with the load trailer is placed on a load plate 4 which can be adjusted between two positions. The figure shows the position of the load plate 4 with a solid line and the lowered position with a dashed line.

I fig. 2 visas en vy bakifrån, delvis i tvärsnitt, på den i fig. 1 visade lastkärran. Såsom framgår av figuren visas ej hela lastkärran utan ett vågrätt "snitt" har gjorts i densamma.Fig. 2 shows a rear view, partly in cross section, of the truck shown in Fig. 1. As can be seen from the figure, the entire carriage is not shown, but a horizontal "cut" has been made in it.

Såsom framgår av denna figur innefattar lastkärran ett första manöverorgan 6 vilket via en första vajeranordning (ej visad) är förbunden med och påverkar ett för stödhjulet 2 avsett låsorgan (ej visat). När manöverorganet 6 (t.ex. i form av ett kopplingshandtag) är intryckt spärrar ej låsorganet utan stödhjulet 2 kan röras "fritt" runt sin fästpunkt (jämför pilen i figur 1). Dessutom innefattas ett andra manöverorgan 5 för inkopplande av vid lastkärrans hjul 17 anordnade kopplingsorgan 15, 16 för automatiskt höjande av lastbordet 3 (jämför även fig. 1) vid framdrivande av lastkärran samt för urkopplande av 10 15 20 25 30 35 40 469 018 3 kopplingsorganen 15, 16. Det andra manöverorganet 5 är via en andra vajeranordning 12 förbundet med styrorgan 13 vilka styr in-resp. urkopplandet av kopplingsorganen 15, 16. Kopplingsor- ganen 15, 16 består dels av på hjulens 17 nav anordnade tappor- gan 16 samt dels av på en axel mellan hjulen 17 löpande kopp- lingsrullar 15. Kopplingsrullarna 15 är försedda med urtag vilka är anpassade för ingrepp med tapporganen 16 så att hjulen 17 och kopplingsrullarna 15 rör sig som sammansatta enheter.As can be seen from this figure, the loading trolley comprises a first operating member 6 which via a first wire device (not shown) is connected to and actuates a locking member (not shown) intended for the support wheel 2. When the operating member 6 (eg in the form of a clutch handle) is depressed, the locking member does not lock but the support wheel 2 can move "freely" around its attachment point (compare the arrow in figure 1). In addition, a second operating means 5 is included for engaging coupling means 15, 16 arranged at the wheels of the loading trolley 17 for automatically raising the pallet 3 (cf. also Fig. 1) when propelling the loading trolley and for disengaging the coupling means. 15, 16. The second operating member 5 is connected via a second wiring device 12 to control means 13 which guide in-resp. the disengagement of the coupling means 15, 16. The coupling means 15, 16 consist partly of the tapping means 16 arranged on the hubs of the wheels 17 and partly of coupling rollers 15 running on a shaft between the wheels 17. The coupling rollers 15 are provided with recesses which are adapted for engagement with the pin means 16 so that the wheels 17 and the coupling rollers 15 move as composite units.

Lastkärran innefattar dessutom på axeln anordnade fjäderorgan 14, ett vid vartdera kopplingsrullen 15, vars fjäderkraft vill pressa kopplingsrullen 15 i riktning mot hjulets 17 nav, dvs. pressa kopplingsrullens 15 urtag till ingrepp med tapporganet 16. Såsom framgår av fig. 2 anligger vartdera styrorganet 13 i ett i vardera kopplingsrullen 15 anordnat spår. Dessutom är den andra vajeranordningen 12 fastsatt i de båda styrorganen 13 så att när vajeranordningen 12 åtdrages "svänger" styrorganen 13 in mot lastkärrans centrum vilket motverkar fjäderorganets 14 fjäderkraft och tvingar kopplingsrullarna 15 ur ingrepp med tapporganen 16. Lastkärran innefattar dessutom en tredje vajeranordning 11 vilken är anordnad mellan kopplingsrullarna 15 samt däremellan står i förbindelse med lastbordet 3. Den tredje vajeranordningen 11 är fastsatt i de båda kopplings- rullarna 15 samt löper runt två vajerrullar 9 och vidare till en på lastbordet 3 fast anordnad löprulle (ungefär i mitten av figuren). Med hjälp av det andra manöverorganet 5 kan man åstadkomma eftersläppande på vajeranordningen 12 vilket medför att styrorganen 13 ej motverkar fjäderorganets 14 fjäderkraft utan kopplingsrullarna 15 pressas medelst fjäderorganen 14 i riktning mot hjulen 17 till ingrepp med tapporganen 16. Vid framdrivning av lastkärran rullar hjulen 17 samt kopplings- rullarna 15 på axeln varvid vajeranordningen 11 upprullas på de båda kopplingsrullarna 15 vilket medför automatisk höjning av lastbordet 3. Lastkärran innefattar dessutom ett vid lastbordet 3 anordnat klafflås 8 samt ett spärrhandtag 7 för in- och urkopplande av den låsande verkan hos klafflåset 8 för fixeran- de av lastbordet 3 i önskat läge. Nedan följer en beskrivning av hur lastkärran kan användas.The carriage further comprises spring means 14 arranged on the shaft, one at each coupling roller 15, the spring force of which spring force wants to press the coupling roller 15 in the direction of the hub of the wheel 17, i.e. pressing the recess of the coupling roller 15 into engagement with the pin member 16. As can be seen from Fig. 2, each guide member 13 abuts in a groove arranged in each coupling roller 15. In addition, the second wire device 12 is fixed in the two guide means 13 so that when the wire device 12 is tightened, the guide means 13 "swing" towards the center of the load cart which counteracts the spring force of the spring means 14 and forces the coupling rollers 15 into engagement with the pin means 16. The load cart further comprises a third wire device 11 which is arranged between the coupling rollers 15 and in between is connected to the load table 3. The third wire device 11 is fixed in the two coupling rollers 15 and runs around two wire rollers 9 and further to a running roller fixed on the load table 3 (approximately in the middle of the figure) . By means of the second operating member 5 it is possible to provide lagging on the wire device 12, which means that the guide means 13 do not counteract the spring force of the spring member 14 but the coupling rollers 15 are pressed by the spring means 14 in direction of the wheels 17 to engage the pin means. the coupling rollers 15 on the shaft, the wire device 11 being wound on the two coupling rollers 15, which results in an automatic raising of the pallet 3. The load cart further comprises a flap lock 8 arranged at the pallet 3 and a locking handle 7 for engaging and disengaging the locking action of the flap lock 8 for fixing the pallet 3 in the desired position. Below is a description of how the truck can be used.

Lastkärran lastas stående med lyftbordet 3 i botten.The truck is loaded standing with the lifting table 3 at the bottom.

Tippa kärran bakåt och skjut den framåt med raka armar. Tryck med vänster hand in manöverhandtaget 6 så att stödhjulet 2 4s- \O 018 4 frigörs. Tryck med höger hand in manöverhandtaget 5 med spärr så att spärren lossnar.Tilt the cart back and push it forward with straight arms. With the left hand, push in the control handle 6 so that the support wheel 2 4s- \ 0 018 4 is released. With the right hand, push in the control handle 5 with the catch so that the catch comes loose.

När man önskar få upp lasten släpper man manöverhandtaget 5. Nu trycks kopplingsrullen 15 medelst fjäderorganet 14 in mot hjulet 17 och kommer till ingrepp med tapporganet 16 vilket f medför att kopplingsrullarna 15 drivs runt när hjulen 17 rullar. Således rullas vajeranordningen 11 upp vilket medför automatisk höjning av lastbordet 3. När lastbordet 3 nått sitt högsta läge, stanna och tippa kärran uppåt så att stödhjulet 2 låser. Tryck in manöverhandtaget 5 och spärra detsamma i intryckt läge. Nu kan man gå med lasten i upplyft läge.When it is desired to lift the load, the control handle 5 is released. Now the clutch roller 15 is pressed by means of the spring member 14 against the wheel 17 and comes into engagement with the pin member 16, which means that the clutch rollers 15 are driven around when the wheels 17 roll. Thus, the wire device 11 is rolled up, which results in an automatic raising of the pallet 3. When the pallet 3 has reached its highest position, stop and tip the cart upwards so that the support wheel 2 locks. Press the control lever 5 and lock it in the depressed position. Now you can walk with the load in the raised position.

Om man ska lossa lasten på t.ex. släpvagn tippas kärran lodrätt mot vagnen. Om man däremot skall plocka in saker i hyllor, eller på annat sätt vill ha lastplattan 4 i plant läge lyfter man i dess handtag tills den låser. När kärran är tom och man ska återställa till lastläge, tryck in manöverhandtaget 6 och lyft med foten upp stödhjulet 2, släpp handtaget 6 och stödhjulet 2 låses fast i upplyft läge. Kärran sänks sedan nedåt så att man når spärrhandtaget 7 med handen och skjuter ner lastbordet 3 till botten.If you are going to unload the load on e.g. trailer, the trailer is tilted vertically towards the trailer. If, on the other hand, you are going to pick things up on shelves, or otherwise want the load plate 4 in a flat position, lift it by its handle until it locks. When the cart is empty and you want to return to the load position, push in the control handle 6 and lift with your foot up the support wheel 2, release the handle 6 and the support wheel 2 is locked in the raised position. The cart is then lowered down so that you reach the locking handle 7 with your hand and push the load table 3 to the bottom.

Den i figurerna visade utföringsformen av lastkärran enligt uppfinningen utgör ej någon begränsning av uppfin- ningen,Jvilkens skyddsomfång framgår av de bifogade patent- kraven. I *x 'wThe embodiment of the truck according to the invention shown in the figures does not constitute a limitation of the invention, the scope of which is apparent from the appended patent claims. I * x 'w

Claims

10 15 20 25 _ 30 35 40 469 018 5 Patent claims

Manually driven truck comprising a frame (1), two wheels (17) arranged at the frame (1) with a shaft arranged therebetween, a height-adjustable load table (3), characterized in that it further comprises a support wheel (2), which by means of a first operating member (6) can be locked in at least two different positions, a second operating member (5) for coupling coupling means (15, 16) arranged at the wheels (17) for automatically raising the load table (3 ) when propelling the load cart and for disengaging the coupling means (15, 16).

Load car according to claim 1, characterized in that the first operating member (6) is connected via a first wire device to a locking means intended for the support wheel (2), the support wheel (2) being lockable in a first folded-up position and a second lowered, position intended for moving the truck.

Load trailer according to claim 2, characterized in that the second operating member (5) is connected via a second wire device (12) to guide means (13) which guide in-resp. disconnecting the coupling means (15, 16).

Cargo cart according to claim 3, characterized in that it further comprises a third wire device (11) which is arranged between the coupling means (15) and is connected to the cargo table (3) therebetween.

Load car according to claim 4, characterized in that the coupling means (15, 16) consist of a coupling roller (15) arranged at each wheel (17) and running on the shaft and at the hub of each wheel (17) arranged at each hub (17), wherein the coupling rollers (15) are provided with recesses which are adapted for engagement with the pin means (16). in

Load carriage according to claim 5, characterized in that it further comprises a spring means (14) arranged at each coupling roller (15) which press the coupling rollers (15) into engagement with the pin means (16) and that the third wire device (11) is fixed in the two coupling rollers (15) so that during engagement between the coupling rollers (15) and the pin means (16) and propulsion of the load carriage, the third wire device (11) is rolled up on the coupling rollers (15), which causes the load table (3) to be raised.

Load carriage according to claim 6, characterized in that each guide member (13) abuts in a groove arranged in each coupling roller (15) and in that when the second operating member (5) is locked by means of a lock arranged therewith. guides the guide means (13), via the second wire device (12), the coupling rollers (15) out of engagement with the pin means (16).

Load carriage according to claim 7, characterized in that when the second operating member (5) is not locked or depressed, a lag is provided on the wire device: (12) and the guide means (13), the spring means (14) pressing the coupling rollers (15) into engagement with the tapping means (16) which, when propelling the load cart, raises the load table (3).

Loading wagon according to claim 8, characterized in that it further comprises a locking means (8) arranged at the loading table (3) for fixing the loading table (3) in the desired position and a locking means (7) belonging to the locking means (3) for and disengaging the reading action of the locking means (8).

Load car according to claim 9, characterized in that the pallet (3) is slidable along the frame (1) by means of a number of running rollers (10) arranged at the pallet (3) for raising and lowering the pallet (3), respectively, and in that the pallet ( 3) comprises a load plate (4) which can be adjusted between two positions in order to obtain a suitable load position. '# 71