NO780830L

NO780830L - BLOOD DRAWER LOCKING DEVICE.

Info

Publication number: NO780830L
Application number: NO780830A
Authority: NO
Inventors: Karl Gunnar Andersson
Original assignee: Kalix Mekaniska Ind
Priority date: 1977-03-11
Filing date: 1978-03-09
Publication date: 1978-09-12
Also published as: FI780687A; SE417736B; SE7702746L; CA1088896A; FI61932C; FI61932B

Description

Foreliggende oppfinnelse angår en.sperreanordning for tip-pbare snøskuffer av den i innledningen til hoved-kravet angitte art. The present invention relates to a locking device for tippable snow shovels of the kind specified in the introduction to the main claim.

Ved to kjente tippbare snøskuffer (svensk patent nr. 199.337 og 316.198) består sperreanordningen for tippingen av skuffen av en låseanordning som manøvreres med en fjærbelastet, forskyvbar manøvreringsstang forsynt med håndtak. In the case of two known tiltable snow buckets (Swedish patent no. 199,337 and 316,198), the blocking device for tipping the bucket consists of a locking device which is operated with a spring-loaded, displaceable operating rod equipped with a handle.

Disse sperreanordningene har flere ulemper. De består av flere bevegelige deler som lett hindres i sin bevegelse av smuss og nedising, hvilket medfører at sperreanordningen er satt ut av funksjon. Det er også meget dyrt å fremstille og montere disse sperreanordningene på grunn av det store antallet deler. En av de kjente snøskuffene (svensk patent nr. 316.198) har dessuten erfaringsmessig den ulempe at sperreanordningen slipper når man kjører inn snøskuffen hardt i en snømasse og deretter bryter håndtakene nedover og dermed vipper skuffens fremre kant oppover for å bryte løs snø fra snømassen. Sperreanordningen slipper også ved tung last. Dette beror på at selve låsehaken er fjærbelastet. These locking devices have several disadvantages. They consist of several moving parts that are easily impeded in their movement by dirt and fogging, which means that the blocking device is put out of action. It is also very expensive to manufacture and assemble these locking devices due to the large number of parts. One of the well-known snow buckets (Swedish patent no. 316,198) also has the disadvantage, according to experience, that the locking device slips when you drive the snow bucket hard into a snow mass and then break the handles downwards, thus tilting the front edge of the shovel upwards to break loose snow from the snow mass. The locking device also releases with heavy loads. This is because the locking hook itself is spring-loaded.

En annen kjent'tippbar snøskuffe (svensk patent nr. 7303^^5-6) har en fast sperreanordning som ikke har noen sperrestilling når skuffen trekkes bakover. Dette kan med-føre at man kan miste snøen ved rygging ved at skuffen ufrivillig tipper. Disse ulempene er eliminert ved sperreanordningen for snøskuffer ifølge foreliggende oppfinnelse. Another known tippable snow drawer (Swedish patent no. 7303^^5-6) has a fixed locking device which has no locking position when the drawer is pulled backwards. This can mean that you can lose the snow when reversing due to the bucket tipping involuntarily. These disadvantages are eliminated by the blocking device for snow buckets according to the present invention.

Foreliggende oppfinnelse går således, ut på en sperreanordning for tippbare snøskuffer som omfatter to på denne svingbart festede håndtak som innbyrdes er forbundet med et tverrstykke som fortrinnsvis er parallell med. skuffens bakre kant, og som er anordnet for å samvirke med en på skuffens bakside anordnet stillingssperre, der hver av håndtakenes lagringer i skuffene utgjøres av et avlangt hull og en i dette løpende tapp. Oppfinnelsen erkarakterisert vedat stillingssperren har en form som foruten en åpning har en i tverrsnitt lukket form, hvilken åpning er rettet nedover/ bakover relativt skuffens lengderetning og hvilken åpning har en bredde som overstiger tverrslåens største diameter, der stillingssperrens innover vendende sider er anordnet for. å tjene som anleggsflater for nevnte tverrslå når denne er forskjøvet til en stilling innenfor nevnte åpning, hvorved stillingssperren forhindrer nevneverdig bevegelse av tverrslåen og dermed håndtakene relativt skuffen i alle retninger, foruten i retning mot åpningen, hvorved tverrslåen og dermed håndtakene er fritt dreibare omkring nevnte lagring. The present invention is thus based on a locking device for tippable snow buckets which comprises two pivotably attached handles which are mutually connected by a cross piece which is preferably parallel to it. the drawer's rear edge, and which is arranged to cooperate with a position lock arranged on the back of the drawer, where each of the handles' bearings in the drawers is made up of an elongated hole and a running pin in this. The invention is characterized in that the locking device has a shape which, in addition to an opening, has a closed shape in cross-section, which opening is directed downwards/backward relative to the longitudinal direction of the drawer and which opening has a width that exceeds the largest diameter of the crossbar, for which the inward-facing sides of the locking device are arranged. to serve as contact surfaces for said crossbar when this is shifted to a position within said opening, whereby the position lock prevents significant movement of the crossbar and thus the handles relative to the drawer in all directions, except in the direction towards the opening, whereby the crossbar and thus the handles are freely rotatable around said storage.

Denne sperreanordning på snøskuffer er en fast og robust anordning som er mekanisk tvangsstyrt, noe som med-fører at sperreanordningen ikke kan slippe ufrivillig. Den har dessuten bare en bevegelig del (selve håndtakkonstruk-sjonen), som er bevegelig og leddbart anordnet til skuffen. Sperreanordningen er på grunn av sin enkelthet .og robusthet ufølsom for blokkering på grunn av smuss og nedising. På grunn av sin enkelthet er sperreanordningen også økonomisk ■ sett fra et fremstillings- og monteringssynspunkt. This locking device on snow shovels is a fixed and robust device that is mechanically forcibly controlled, which means that the locking device cannot release involuntarily. It also only has one movable part (the handle construction itself), which is movable and articulated to the drawer. Due to its simplicity and robustness, the blocking device is insensitive to blocking due to dirt and fogging. Because of its simplicity, the locking device is also economical ■ from a manufacturing and assembly point of view.

Oppfinnelsen skal under henvisning til tegningene beskrives nærmere på basis av en foretrukket utførelsesform. The invention shall be described in more detail with reference to the drawings on the basis of a preferred embodiment.

I fig. 1 vises snøskuffen med en sperreanordning sett fra siden og i en stilling der den skyves fremover for å fylles med snø. Fig. 2 viser snøskuffen med sperreanordning sett fra siden og i en stilling der den rygges uten at tipping skjer. Fig. 3 viser snøskuffen med sperreanordningen sett fra siden i en stilling der dragene brytes nedover og dermed skuffens fremre kant oppover for løsbryting av snø fra en snømasse. Fig. 4 viser en del av sperreanordningen som er anordnet på skuffens bakside. In fig. 1 shows the snow drawer with a locking device seen from the side and in a position where it is pushed forward to be filled with snow. Fig. 2 shows the snow drawer with locking device seen from the side and in a position where it is backed up without tipping. Fig. 3 shows the snow bucket with the locking device seen from the side in a position where the ropes are broken downwards and thus the front edge of the bucket upwards for breaking snow from a snow mass. Fig. 4 shows part of the locking device which is arranged on the back of the drawer.

Fig. 5 viser dragkonstruksjonen.Fig. 5 shows the draw construction.

Fig. 6 viser en modifisert form for sperreanordningen Fig. 6 shows a modified form of the locking device

ifølge oppfinnelsen.according to the invention.

Figurene viser snøskuffen 1 med drag 2,3. De to dragene 2,3 er innbyrdes forbundet ved hjelp av et tverrstag 4 parallelt med skuffens bakre kant og en håndtaksdel 5. Dragene 2,3, tverrstykket 4 og håndtaksdelen 5 utgjøres av rør, stang eller profil med en eller annen hensiktsmessig tverrsnittsform. The figures show the snow drawer 1 with draft 2,3. The two rods 2,3 are mutually connected by means of a cross brace 4 parallel to the back edge of the drawer and a handle part 5. The rods 2,3, the cross piece 4 and the handle part 5 are made up of a tube, rod or profile with some appropriate cross-sectional shape.

Skuffens sidevegger er forsynt med hver sin gjennom-gående bolt eller' utenpå anordnet tapp 7 som samvirker med dragenes 2,3 fremre ender 8,9 som for dette formål er forsynt med hver sin sliss eller avlangt hull 10 gjennom hvilket det strekker seg en tilhørende tapp eller bolt 7, slik at dragene dels er svingbare, dels er lengdeforskyvbare i forhold til tappene eller boltene 7, noe som best fremgår av en sammenligning mellom fig. 1 og 2. I stedet for at tappene, eller boltene er anordnet i skuffeveggene 6 og de avlange hullene 10 i dragene, kan naturligvis komme på tale en omvendt plassering, dvs. tappene plassert på dragene og de avlange hullene i skuffeveggene. The side walls of the drawer are each provided with a through-bolt or externally arranged pin 7 which cooperates with the front ends 8,9 of the drags 2,3, which for this purpose are each provided with a slot or elongated hole 10 through which extends an associated pin or bolt 7, so that the drags are partly pivotable and partly displaceable in length in relation to the pins or bolts 7, which can best be seen from a comparison between fig. 1 and 2. Instead of the studs or bolts being arranged in the drawer walls 6 and the oblong holes 10 in the drawers, a reversed location can naturally be used, i.e. the studs placed on the drawers and the oblong holes in the drawer walls.

Ved skuffens 1 bakside 11 er det anordnet en stillingssperre 12. Denne stillingssperren 12 består av bøyd, langs-gående plate, parallell med skuffens bakside eller av et antall bøyde håndjern. Platens eller håndjernenes profil er uregelmessig og formet slik at tverrstykket 4 er mekanisk tvangsstyr.t i profilen ifølge fig. 4. Profilen kan nærmest beskrives som et åpent, stillisert nitall med uttrukne, vinklede avslutninger og med ryggen mot skuffens bakside 11. At the back side 11 of the drawer 1, a position lock 12 is arranged. This position lock 12 consists of a bent, longitudinal plate, parallel to the back of the drawer or of a number of bent handcuffs. The profile of the plate or the handcuffs is irregular and shaped so that the cross piece 4 is mechanically forced in the profile according to fig. 4. The profile can almost be described as an open, stylized number nine with elongated, angled ends and with its back towards the back of the drawer 11.

Ifølge en modifisert utførelsesform for stillingssperren 12 utgjøres den ifølge fig. 6 av en i plast formet del som har liten bredde sammenlignet med skuffens bredde. Stillingssperren 12 er fortrinnsvis montert på skuffens bakside ved midten.' Det kan imidlertid monteres to eller flere slike stillingssperrer på skuffens bakside. I fig. 6 er de flater resp. åpningen som tilsvarer de flater resp. åpningen i stillingssperren ifølge fig. 4 betegnet med samme siffere. According to a modified embodiment of the position lock 12, it is constituted according to fig. 6 of a part formed in plastic which has a small width compared to the width of the drawer. The position lock 12 is preferably mounted on the back of the drawer near the middle. However, two or more such position locks can be mounted on the back of the drawer. In fig. 6 are the flats resp. the opening that corresponds to the flats or the opening in the position lock according to fig. 4 denoted by the same digits.

Tverrdelen 4 samvirker med stillingssperren 12 for låse fast dragene 2,3 i riktig arbeidsstilling i forhold til skuffen 1. Tverrstykket 4 og dermed dragene 2,3 er mekanisk tvangsstyrt i stillingssperren 12 både ved kjøring fremover (fig. 1), kjøring bakover (fig. 2) og løsbryting av snø fra en snømasse (fig. J>) • The cross member 4 cooperates with the position lock 12 to lock the drags 2,3 in the correct working position in relation to the drawer 1. The cross piece 4 and thus the drags 2,3 are mechanically forcibly controlled in the position lock 12 both when driving forwards (fig. 1), driving backwards (fig. 2) and breaking snow from a snow mass (fig. J>) •

Ved snøskuffingens første trinn, skyves skuffen 1 fremover for å' fylles med snø (fig. 1). Tverrstykket 4 er da mekanisk tvangsstyrt i stillingssperrens 2 fremre U-lignende del .15 samtidig som tappen eller bolten 7 befinner seg i det avlangs hullets 10 bakre del 14, hvorved dragene er fast og stødig sperret i forhold til skuffene og dermed sikret mot ufrivillig tipping av skuffen. At the first step of the snow shoveling, the shovel 1 is pushed forward to be filled with snow (fig. 1). The crosspiece 4 is then mechanically forcibly controlled in the front U-like part 15 of the positioning lock 2 at the same time as the pin or bolt 7 is located in the rear part 14 of the longitudinal hole 10, whereby the drags are firmly and steadily locked in relation to the drawers and thus secured against involuntary tipping of the drawer.

Ved skuffingens andre trinn (fig.2) rygges den snø-fylte skuffen 1 for senere å tømmes. Tverrstykket 4 er da mekanisk tvangsstyrt i sperrens 12 bakre U-lignende del 15 samtidig som tappen eller bolten 7 befinner seg i det avlange hullets 10 fremre del 16, hvorved dragene er fast og stødig sperret i forhold til skuffen og umuliggjør derved ufrivillig tipping av skuffen. At the second step of the drawer (fig.2), the snow-filled drawer 1 is backed up to later be emptied. The crosspiece 4 is then mechanically forcibly controlled in the rear U-like part 15 of the latch 12 at the same time as the pin or bolt 7 is located in the front part 16 of the elongated hole 10, whereby the drags are firmly and steadily locked in relation to the drawer and thereby make it impossible for the drawer to tip involuntarily .

Eventuelt kan det bli nødvendig mellom snøskuffingens første og andre trinn å bryte løs den snøfylte skuffen 1 fra snømassen ved at dragene 2,3 brytes nedover og dermed tipper opp skuffens fremre kant 17, for i det hele tatt å kunne gjennomføre det andre trinnet (fig. 3). Tverrstykket 4 er da mekanisk tvangsstyrt i sperrens 12 fremre., nedre, plane del 18 samtidig som tappene eller bolten 7 befinner seg i det avlange- hullets 10 bakre del 14, hvorved dragene er fast sperret i forhold til skuffen og dermed umuliggjør ufrivillig tipping av skuffen. It may be necessary between the first and second stage of the snow removal to break the snow-filled tray 1 from the snow mass by breaking the drags 2,3 downwards and thereby tipping up the front edge 17 of the tray, in order to be able to carry out the second step at all (fig .3). The cross piece 4 is then mechanically forcibly controlled in the front, lower, flat part 18 of the latch 12 at the same time that the pins or bolt 7 are located in the rear part 14 of the oblong hole 10, whereby the drags are firmly locked in relation to the drawer and thus make involuntary tipping of the drawer.

Ved snøskuffingens tredje trinn (tippingen) føres tverrstykket 4 ut av sperrens 12 åpning 19 hvilket medfører at tverrstykket 4 ikke lengre er tvangsstyrt. Dragene 2,3 blir svingbare i forhold til skuffen 1 om tappene eller boltene 7, og hvorved tipping skjer på en enkel måte. At the snow shovel's third stage (the tipping), the crosspiece 4 is led out of the opening 19 of the barrier 12, which means that the crosspiece 4 is no longer forcibly controlled. The drags 2,3 become pivotable in relation to the tray 1 about the pins or bolts 7, whereby tipping takes place in a simple way.

Oppfinnelsen er ikke begrenset til den på tegningen viste og ovenfor beskrevne utførelsesform, men kan varieres i form og detaljer innen oppfinnelsestanken. The invention is not limited to the embodiment shown in the drawing and described above, but can be varied in form and details within the scope of the invention.

Claims

1. Locking device for tiltable snow bucket (1) comprising two pivotably attached pulls (2,3) which are mutually connected by a crossbar (4) which is preferably parallel to the rear edge (11) of the bucket (1) and which is arranged to cooperate with a position lock (12) arranged on the back of the drawer (11), where each of the drags' (2,3) storage in the drawer' consists of an elongated hole (10) and a running pin (7) in this, characterized by that. the position lock (12) has a closed form except for an opening (19), which opening (19) is directed downwards/backward relative to the longitudinal direction of the drawer (1) and has a width that exceeds the largest diameter of the cross member (4), where the inward facing sides of the position lock is arranged to serve as contact surfaces (12,13,15,18) for said crossbar (4) when this has been moved to a position within the aforementioned opening (19), as the position lock (12) prevents appreciable movement of the crossbar and thus the kites relative to the drawer in all directions except in the direction towards the opening (19) through which the crossbar and thus the cables are freely rotatable around the aforementioned bearing (10,7).

2. Locking device according to claim 1, characterized in that the locking device (12) has a U-like or square-like cross-section, where extensions from both legs extend from the outgoing cross-section, first inward into the opening of the U, preferably at right angles towards the legs, and then obliquely downwards/outwards, as this U-like locking device is mounted with the waist upwards and with one leg towards the rear edge of the drawer (11), which means that the contact of the crossbar (4) against the locking device (12) is against the plane surfaces or in a corner between flat surfaces, whereby the drags (2,3) are locked to the drawer in three different directions of movement in relation to the drawer, namely forward movement, backward movement and upward movement, the last movement only applies to the front edge of the drawer ( 17), which movement takes place when the drags (2,3) are pressed downwards, or the crossbar (4) is deliberately guided out through the U-like cross-section opening (19), whereby the drawer is disengaged and becomes freely pivotable around ng the dragons' ends (8,9)•

3. Locking device according to one or more of the preceding claims, characterized in that the position lock (12) is made of a bent plate which is mounted along the back of the drawer, or of a number of bent band irons.

4. Locking device according to claim 1 or 2, characterized in that the position lock (12) consists of a part shaped in plastic which has a small width compared to the width of the drawer and is preferably mounted at the middle of the back of the drawer.

5. Locking device according to claims 1-4, characterized in that the displaceable and pivotable storage device's aforementioned oblong hole (10) is arranged in the front ends (8,9) of the struts (1,3) through which holes the associated pins (7) run .

6.. Locking device according to claims 1-4, characterized in that the displaceable and pivotable storage device consists of the front ends (8,9) of the drags (2,3) each being provided with a pin that interacts with oblong holes in the drawer walls.