DE29505599U1 - Rake for collecting flat and straw-shaped goods in particular by sweeping movement - Google Patents

Description

Rake for collecting especially flat and stalk-shaped material by sweeping movement

The invention relates to a rake for collecting in particular flat and stalk-shaped material such as leaves, grass, paper _, cardboard, foil, but also crown caps, cigarette boxes and butts and similar waste in piles by sweeping. On solid ground such as concrete or asphalt, leaf-shaped waste has the property of sticking firmly to it, especially when wet. Conventional tools such as rakes, brooms or rakes are not able to collect and move this waste to the required extent.

On the other hand, on uneven ground, especially grass, such items become matted into the ground and are difficult to separate from it.

A rake is known whose double tines are inverted "V"-shaped, with the front and rear tines arranged in rows one behind the other. At their vertices, the double tines are held in holes in the lower part of a two-part, wooden rake bar that is screwed together. In order to accommodate the vertices of the double tines, a groove is milled into the lower part of the rake bar with a rectangular cross-section. Within the depth of this groove, the vertices of the double tines can move freely, which is unfavourable both in terms of their effectiveness when sweeping and in terms of the duration of the rake's availability. The loose mounting of the double tines leads to high wear and premature failure both in the holes in the rake bar and in the tines themselves. The front and rear tines have the possibility of moving in different directions depending on the load. This creates the risk of the tines bending or snapping in different directions, which

Rake unusable. At the exit point of the tines from the holes in the rake holder, they are subject to permanent bending stress and break off particularly easily at this weak point. On the other hand, the inherent elasticity of the tines in the direction of the sweeping movement cannot be used to the desired extent. The fundamentally loose holder ₅ , which is further exacerbated by premature wear, allows the tines to give way when they touch the ground and thus prevents the necessary working pressure from being exerted on it and the material to be collected. The operator must take this into account and use increased force to achieve the same sweeping effect. As a result, the sweeping stroke is shortened, which limits the effectiveness of the rake.

The problem of the invention is to provide a rake for collecting flat and stalk-like material in particular, which has a longer service life and a better efficiency with easier operation,

The problem is solved with the rake specified in claim 1. The double tines are held firmly and resiliently at their apex between the rake bar and the tine holder and are supported by guides and prevented from moving sideways, while they can exert their full elasticity in the sweeping direction. This minimizes the risk of damage and the rake becoming unusable and a longer sweeping stroke and better collection effect are achieved with less pressure exerted by the operator. According to an advantageous embodiment of the invention, the tine holder is designed with a web and two legs angled downwards. Depending on the requirements of the application, it is thus possible to arrange holes for the front and/or rear tines in the web as guides and guide grooves for the front and/or rear tines in the legs. Further advantageous embodiments can be found in the claims.

The invention will be explained in more detail below using examples of embodiments.

The accompanying drawing shows:

Fig.l: Rake ₅ in side view,

Fig.2: Rake according to Fig.l _seen from below and with double tines not shown,

Fig.3: Rake according to Fig.l in principle representation,

Fig.4
until

Fig.7: Other rakes in principle representation analogous to Fig.3 ₅

Fig.8: Counter bar in top view.

As can be seen from Fig. 1, the rake for collecting flat and stalk-shaped material in particular in piles consists of the handle 1 with the handle holder 2, which is attached to the rake bar 3 with blind rivets 4. The rake bar 3 made of galvanized sheet metal is angled downwards twice. The tine holder 6 is attached to the underside of its web by means of slind rivets 5. The tine holder 6 is designed as a downward-opening "U ¹ " profile with legs ₅ that are arranged at angles of less than 90 ° to the web. Between the underside of the rake bar 3 and the top of the web of the tine holder 6, the vertices of the almost "V"-shaped double tines 9 are enclosed. The rear tines 10 are in the guides shown in Fig. 2, designed as holes 7 in the web of the tine holder 6 and also in the leg of the tine holder 6 guide grooves. The front tines 11 are guided in the holes 8.

When the rake is moved in a sweeping motion according to the direction arrow, the double tines 9 clamped between the rake bar 3 and the tine holder are securely held. However, the tines 10;11 have the necessary play in the holes 7;8 in order to ensure a long service life due to the necessary spring function of the rake as a result of little wear of the tines 10;11 in the area of the vertices of the double tines.

·· ■

to reach,

In the area of the fastening of the double tines 9 which is most stressed during the sweeping movement of the rake, the rear tines 10 are given additional guides in the guide grooves 12, which can be seen in Fig. 2. They are supported laterally by the flanks of the guide grooves 12 and secured against twisting and bending. In addition, the systems located on the back of the guide grooves 12 resiliently absorb forces acting on the rear tines 10 during the sweeping movement of the rake according to the direction arrow 19. By corresponding arrangement, the front tines 11 are also guided in holes 8 in this embodiment. In addition, they can also be guided laterally in guide grooves (not shown) in the other leg of the tine holder 6 and thus secured. The rear tines 10 are equipped at the bottom ends with the bends 14 in the direction of the directional arrow 19 and the front tines 11 with the bends 15. The bends 14; 15 run essentially parallel to one another. Their length is designed in such a way that when the operator holds the handle 1 at an ergonomically favorable angle, the ends of the bends 14; 15 are approximately at a right angle to the ground 16 and are thus in the functional position at the same time. As a result, the row of front tines 11 lifts the material to be collected, which is particularly important when there are leaf-shaped or stalk-shaped objects lying flat on the ground 16 or when the ground 16 is uneven and matted. The following row of rear tines 10 reaches under the lifted objects and transports them in the sweeping direction according to the direction arrow 19. This creates a collection space for the thrown-up material between the rows of front tines 11 and the rear tines 10, which makes transport easier. With one sweeping stroke, distances of one meter in length can be reached, which leads to a significant rationalization of the work.

Further examples of implementation are shown schematically in Fig.4 to Fig.7.

The solution according to Fig.4 offers the possibility of guiding both the rear tines 10 and the front tines 11 both in bores 7;8 in the web and in guide grooves 12;13 in the legs of the tine holder 6. The rear tines 10 are supported on systems 17.

According to Fig.5, both the front tines 11 and the rear tines 10 are guided laterally in guide grooves. In addition, the front tines 11 are supported on attachments 17. According to Fig.6, the fastening of the double tines 9 is designed in such a way that the rear tines 10 are guided in holes 7 and both the rear tines 10 and the front tines 11 are guided in guide grooves in the legs of the tine holder 6 and both rest on attachments 17.

Fig.7 shows a slightly different embodiment. The rake bar 3 is designed as a counter bar 18 according to Fig.8. It is attached to the underside of the tine holder 6. In this case, the handle holder 2 is connected directly to the tine holder 6. The front tines 11 and the rear tines 10 are guided with the necessary play in the guide grooves 20; 21 of the counter bar 18. The front tines 11 can rest on attachments 22. In addition, the tines 11 are guided laterally in guide grooves 12; 13 in the legs of the tine holder 6 and the rear tines 10 can rest on attachments 17 when loaded in the sweeping direction.

List of reference symbols

1 . . . stem 2 , ., handle holder 3 »,, calculation bar 4 . . . Blind rivet 5 . . , blind rivet 6 , , . Tine holder 7 ... Drilling 8th , . , Drilling 9 .. double tine 10 ... rear tine 11 , , , front tine 12 , .. guide groove 13 . . , guide groove 14 . .. turn 15 . , . Turn 16 , .. Floor 17 . . . Attachment 18 , , , counter bar 19 , . . Direction arrow 20 . ,. Guide groove 21 . . . Guide groove 22 . . . Attachment

Claims (1)

Expectations 1, Rake for collecting flat and spherical items such as leaves, grass, paper, cardboard, foil, but also crown caps, cigarette boxes and cigarette butts and similar waste in piles by sweeping movement, consisting of a handle with a handle holder, a rake bar and double tines in the shape of an inverted "V" or "U" with front tines in a front row in the direction of collection and rear tines arranged behind them in a rear row, characterized in that the double tines (9) are clamped at their vertices between the rake bar (3) and a web of a tine holder (6) and are connected to these and in the tine holder (6) guides for the double tines (9) are arranged, 2.Rake according to claim 1, characterized in that the tine holders (6) are designed with a web and two legs in cross section approximately inverted "V"-shaped, "U"-shaped, clamp-shaped or similarly opening downwards. S.Harke according to claim 2, characterized in that the guides for the double tines (9) are designed as bores (7) for receiving the rear tines (10) in the web of the tine holder (6). 4.Rake according to claim 2, characterized in that the guides for the double tines (9) are designed as bores (8) for receiving the front tines (11) in the web of the tine holder (6). S.Harke according to claim 2, characterized in that the guides for the double tines (9) are designed as guide grooves (12) are designed to receive the rear tines (10) in the leg of the tine holder (6), o.Rake according to claim 2, characterized in that the guides for the double tines (9) are designed as guide grooves (13) are designed to receive the front tines (11) in the leg of the tine holder (6), 7. Rake according to claims 5 and 6, characterized in _that the guide grooves (12; 13) have rear supports (17). 8.Rake according to claim 1, characterized in that the rake bar (3) is designed as a counter bar (18) arranged below the tine holder (6), 9.Rake according to claim 8, characterized in that guide grooves (21) for the rear tines (10) are arranged in the counter bar (18), 10.Rake according to claim 8, characterized in that the guide grooves (20) for the front tines (11) are arranged in the counter bar (18). 11. Rake according to claims 8 to 10, characterized in that the handle holder (2) is attached to the tine holder (6), 12. Rake according to claims 1 to 11, characterized in that the double tines (9) consist of resilient material, in particular galvanized sheet metal, 13.Rake according to claim 12, characterized in that the double tines (9) have a rectangular cross-section. 14.Rake according to claim 12 , characterized in that the front tines (11) have bends (15) in the sweeping direction over part of their length. 15.Rake according to claim 12, characterized in that the rear tines (10) have bends (14) in the sweeping direction over part of their length. 16. Rake according to claims 14 and 15, characterized in that in the sweeping position the rear tines (10) and the front tines (11) in the area of their bends (14; 15) are approximately parallel to each other and extend vertically to the ground (16), 17, Rake according to claims 1 to 16, characterized in that the connection of the rake beam (3) to the web of the tine holder (6), with the vertices of the double tines (9) received between them, is made by means of blind rivets (5).