DE2725923A1 - DEVICE FOR CRUSHING FRUIT, VEGETABLES, ONIONS OR DGL. - Google Patents

Description

272592Ί

PATFNTANWALTc ^ Dipl.-ing. LUDEWIG graduate phys. BUSE graduate phys. MENTZEL

5600 WUPPERTAL 2 UNDERDÖRNEN 114 CALL (02 02) 55361112

77 - Password: "Schlagschneider"

Company Leifheit International Günter Leifheit GmbH 5408 Nassau / Lahn

Device for chopping fruit, vegetables, onions or the like.

The invention relates to a device for chopping fruit, vegetables, onions or the like, consisting of an over the product to be sliced hood-shaped receptacle, in the upper area of which via an upward from the Hood-shaped receptacle protruding actuating rod with strike button against the effect of an energy storage device is arranged downward through a stripper in the cut to be cut knife part, the hood-shaped Recording a bearing bush for guiding the operating rod and a bearing bush at a distance having centrally surrounding tubular extension, in which a tubular, rearward extension of the strike button Can be inserted telescopically, and on the inside of the tubular extension of the hood-shaped receptacle means for an inevitable rotation of the knife part when it is actuated are provided.

In this known device, the knife part rests in the basic position against the bearing bush of the actuating rod and the tubular extension centrally surrounding the bearing bush

-2-

909810/00 (K

extends from the bearing bush only upwards and has on its inside over the entire length extending guide grooves which are slightly inclined to the longitudinal direction. An intermediate piece engages in the guide grooves with corresponding radial projections, which is rotatably slipped onto the actuating rod. The intermediate piece is held positively against the rear extension of the strike button with the energy storage device, as the An energy storage device formed by a helical compression spring attached to the actuating rod extends at one end against the Bearing bush of the hood-shaped receptacle and at the other end is supported against the intermediate piece. When the strike button is knocked down and thus of the knife part, the friction between the operator's hand and the strike button should be so great be that the strike button and the operating rod with the knife part essentially without rotation in the lower position is convicted. In doing so, the intermediate piece, which is non-positive against the rear extension of the strike button, rotates opposite to the actuating rod and the strike button, which are non-rotatably connected to one another. Returning the The knife part with the operating rod, intermediate piece and impact button is done with the helical compression spring, for which purpose only the hand lying flat on the strike button is to be brought upwards. The friction between the hand and the push button should now be reduced become less, so that the strike button with the actuating rod, intermediate piece and knife part now the rotary movement of the force-fit against the rear extension of the strike button adjacent intermediate piece can follow.

The intended turning of the knife part thus takes place due to different retention forces between the hand and Striker button when striking down and returning the striker button into the basic position and the retaining force of the slip clutch between the intermediate piece and the rear extension of the push button. The against each other

9098 10/0004

However, when used as intended, surfaces that come into contact can be replaced by oil, grease or the like Coefficients of friction obtained, so that an intended turning of the knife part especially after prolonged use is not always guaranteed. In addition, the guide grooves on the inside of the tubular extension are only with intricate shapes can be produced by injection molding.

The invention is based on the object of creating a device of the type explained at the outset in which such Disadvantages are avoided and the twisting takes place through positive interlocking of parts. This The aim is achieved according to the invention that on the inside of the tubular extension of the hood-shaped receptacle two circumferential rows of axially extending rib-shaped rows, one on top of the other in the axial direction of the actuating rod Projections for the formation of guide grooves for radially outwardly directed peg-shaped projections of a non-rotatable with the actuating rod displaceable part are provided, wherein the rib-shaped projections of a circumferential Row to the rib-shaped projections of the other circumferential row are set on gap and the width of the rib-shaped Projections of each of the two rows correspond essentially to the width of the guide grooves of the other row and the mutually facing ends of the rib-shaped projections of both rows each starting from the same side on one side are pointed, the tips of one row with the tips of the other row are approximately in line. It is thereby achieved in a simple manner that when the actuating rod and the non-rotatably connected to it move downwards Part of the radially outwardly directed pin-shaped projections, which are initially located in the guide grooves between the Rib-shaped projections of the upper row are located on the one-sided pointed ends of the lower row of rib-shaped Projections hit and are thereby turned to the side

909810/0004

? 7 2 5 9 2 3

and get into the guide grooves between the rib-shaped projections of the lower row. When moving back the actuating rod, in which the radially outwardly directed peg-shaped projections follow again are guided above, meet the radially outwardly directed pin-shaped projections from the guide grooves of the lower Row of rib-shaped projections coming against the ends of the upper row of rib-shaped projections, which are pointed at one end, so that another rotation occurs in the same direction. The rotary movement of the knife part is thus in two ways Split into halves. The first half of the rotary movement takes place with the downward movement of the knife part, while the second half Part of the rotary movement is made during the returning upward movement of the knife part. There is a turning of the knife part occurs during both the downward movement and the upward movement, a relative large rotation can be achieved with each actuation of the device. In addition, however, it is also possible at Maintaining sufficient rotation of the knife part each time the device is actuated to generate the rotary movement inclined surfaces required from the vertical actuation movement with such a slight inclination provided that the wear that occurs is significantly reduced. This is possible because almost the entire route the downward movement and the subsequent upward movement of the knife part with the actuating rod for the generation the rotary movement can be exploited.

The rib-shaped projections of the lower row can be pointed at their lower ends. This will get the radially outwardly directed peg-shaped projections of the part, which is rotatably displaceable with the actuating rod,

-5-

909810/0004

ί ~

725923

-y-

active again in the guide grooves of the lower row of rib-shaped projections when these are moving downwards of the knife part with the operating rod from the lower ends of the guide grooves of the lower row get out rib-shaped projections.

The radially outwardly directed pin-shaped projections engaging in the guide grooves can be a rearward one be molded tubular extension of the knife part. As a result, the necessary for generating the rotary motion are assigned radially outwardly directed pin-shaped projections on a part of the device that is required anyway.

The rear tubular one carrying the pin-shaped projections Approach of the knife part can in its upper basic position with its free end against a transverse wall of the tubular Approach the hood-shaped receptacle. This creates a stop for the knife part in a simple manner, which determines the upper basic position of the knife part.

The transverse wall can be the bearing bush for guiding the operating rod wear. As a result, the bearing bushing required for guiding the actuating rod is easily provided held on a transverse wall, which serves as a stop for the knife part anyway.

The knife part connected to the actuating rod can consist of a disc running at right angles to the actuating rod consist of plastic, in the downward-facing surface at least one vertical sheet with a bevelled lower edge is used as a knife. This knife part can be produced in a particularly inexpensive manner.

The sheet metal forming the knife can have bends in its length and cover almost the entire lower surface of the disc.

909810/0004

-6-

As a result, the material to be cut, over which the hood-shaped receptacle is placed, is activated in a simple manner the knife part cut several times.

The sheet metal forming the knife can have openings on its upper edge and below it during the manufacture of the disc Formation of rib-shaped projections be injected. As a result, the sheet metal forming the knife is particularly inexpensive attached to the disc made of plastic, since it is directly during the manufacture of the disc in the injection molding process is molded. The openings on the upper edge of the sheet fill up with the material, so that a positive bracket is achieved.

The sheet metal forming the knife can be sharpened to form a The lower edge must be sharpened on one side. As a result, a sharp edge is achieved in a particularly simple manner, which can be produced particularly cheaply.

The disc forming the knife part can have a tubular receptacle for holding the centered on its upper side Have operating rod. This allows the actuating rod in a particularly simple manner by press fit with the the disc forming the knife part are connected.

The disc forming the knife part can be in its upper basic position rest against the downwardly directed free end of the tubular extension of the hood-shaped receptacle. Through this a stop for the knife part is created in a simple manner, against which the knife part rests in the basic position.

The hood-shaped receptacle to be slipped over the material to be cut can be mounted in a horizontal plane with a quickly releasable connection be divided, in the area of the parting line the

909810 / GO (K

Stripper plate is supported. The stripper plate that has a slot for the passage of the sheet metal forming the knife, can thus in a particularly simple manner removed from the device for cleaning.

The tubular, rearward extension of the strike button can have a cap-like receptacle on a transverse wall for attachment to the upper end of the actuating rod. As a result, the actuating rod can be attached in a simple manner to the tubular, rearward extension of the strike button will.

The tubular, rear extension can be closed at the top with an attachable cap to form the strike button be. As a result, the strike button can be produced in a particularly inexpensive manner and with the actuating rod connectable.

The cap can engage with a tubular extension in the upper end of the tubular extension and with a Be latched. In this way, a particularly inexpensive connection is achieved in a simple manner.

The hollow cap can be provided with a further tubular extension rest against the bottom of the cap-like receptacle. As a result, those acting on the cap are particularly inexpensive Forces transferred to the cap-like receptacle and thus to the actuating rod without pressing the Cap is to be feared.

The cap which closes the strike button upwards can have a diameter which is larger than the outer diameter the tubular, rear extension of the strike button and the drawn down edge of the cap with a side cranked wall part of the tubular, rear

Ü JfS I U / U Ü 0

Extensions interlock flat. This creates a large-area knock button in a particularly simple manner created.

In the drawing, the invention is shown in one embodiment, namely show:

1 shows the device according to the invention in side view, partly in section,

2 shows the upper part of the hood-shaped receptacle in section and on a larger scale, partially broken away,

3 shows the inside of the tubular extension of the hood-shaped receptacle as a development,

4 the knife part of the device in side view, partly in section, and

Fig. 5 the knife part in plan view.

The device shown in the drawing is used for chopping fruit, vegetables, onions or the like. And consists from a hood-shaped receptacle 10 made of plastic to be slipped over the material to be cut. In the upper part of the hood-shaped The receptacle 10 is via an actuating rod protruding upward from the hood-shaped receptacle 10 with push button 12 against the action of an energy storage device down through a stripper plate 14 into the material to be cut striking knife part 15 is arranged. The hood-shaped receptacle 10 has a bearing bush 16 for guiding the Actuating rod 11 and a tubular extension 17 centrally surrounding the bearing bush 16 at a distance, into which one tubular, rear extension 18 of the strike button when the intended

903810/00 (H.

-y-

Use of the device engages telescopically.

As can be seen in particular from FIG. 1, the over the hood-shaped receptacle 10 to be slipped over in the horizontal plane with a quickly releasable connection 19 divided, with the plastic stripper plate 14 being held in the region of the parting line 20. By solving the Lower part 21 of the upper part 22 of the hood-shaped receptacle 10 can thus be removed for cleaning the stripper plate 14 will. Complete cleaning of the device is possible at the same time.

The upper part 22 of the hood-shaped receptacle 10 is, as can be seen in particular from FIG. 1, at its upper part The end is provided with a frustoconical constriction 2 3 and merges into the tubular extension 17, the other end of which protrudes into the hood-shaped receptacle 10. The lower The free end of the tubular extension 17 serves as a stop for the knife part 15. In the tubular extension 17 a transverse wall 24 is provided which carries the bearing bush 16. Above the transverse wall 2 4, the tubular extension 17 is used Receipt of the tubular extension 18 of the strike button 12, while below the transverse wall 2 4 the tubular extension 17 is used to receive a tubular extension 25 of the knife part 15. The tubular extension 25 of the knife part 15 can push up to the transverse wall 2 4.

The knife part connected to the metallic operating rod 11 15 consists of a disc 26 made of plastic running at right angles to the actuating rod, in the downward direction directed surface, as can be seen in particular from FIG. 4, a perpendicular sheet with a sharpened lower edge as Knife 27 is inserted. The length of the sheet metal forming the knife 27 is shown in particular in FIG. 5 evident,

-10-

909810/00 (H.

Bends on so that almost the entire lower surface of the disc 26 is covered. The sheet metal forming the knife 27 has breakthroughs (not shown in greater detail) on its upper edge and is below during the manufacture of the disk 26 Formation of rib-shaped projections 28 injected. As a result, the sheet metal forming the knife is particularly cheaper Wise attached to the disc 26 made of plastic, since it is during the production of the disc by injection molding is formed immediately. The openings on the upper edge of the sheet fill up with the material, so that a positive bracket is achieved. To form a sharpened lower edge, the sheet metal forming the knife 27 is one-sided sharpened.

For fastening the knife part 15 to the actuating rod 11, the disk 26 forming the knife part 15 points centrally a tubular receptacle 2 9 on its upper side. As a result, the actuating rod 10 can be carried out in a particularly simple manner be connected by press fit to the disc 26 forming the knife part 15. The tubular, rear extension 18 of the strike button 12 is made of plastic and has on a transverse wall 30 a cap-like receptacle 31 for the Attachment to the upper end of the operating rod 11. The fastening is done by press fit or the like .. The tubular, rearward extension 18 is provided with a cap 32 that can be placed on top to form the strike button 12 closed from plastic. The cap 32 engages with a tubular extension 33 in the upper end of the tubular Extension 18 and is held with a latch 34. In order to push in the hollow cap 32 when it is intended To prevent use, another tubular extension is provided on the inside of the cap 32, which is against the bottom 36 of the cap-like receptacle 31 rests.

The cap 32, which closes the strike button 12 upwards, has a diameter which is greater than the outer diameter the tubular, Rückwärtsiqen extension 18 of the strike button

909810/0004

-π-

7725923

12. The downwardly drawn edge 37 of the cap 32 engages with a laterally cranked wall part 38 of the tubular, rear extension 18 flat into one another. This creates a large-area knock button in a particularly simple manner created.

As already explained, the tubular extension 25 of the knife part 15 engages in the tubular extension 17 of the hood-shaped Recording 10, the free end of the tubular extension 25 of the knife part 15 against the transverse wall 2 4 of the tubular Approach 17 of the hood-shaped receptacle 10 comes to rest in the basic position shown in FIG is. When used as intended, the hood-shaped receptacle 10 of the device is over the material to be cut everted and then hit by hand on the strike button 12, so that the strike button 12 with the actuating rod 11 and the knife part 15 is moved downwards against the action of the energy accumulator 13, which is controlled by a helical compression spring is formed. The helical compression spring 13 is supported at one end against the transverse wall 24 of the tubular extension 17 of the hood-shaped receptacle 10 and at the other end against the transverse wall 30 of the tubular extension 18 of the strike button 12 from. The helical compression spring 13 is plugged onto the actuating rod 11.

To return the knife part 15 to the basic position the hand of the operator only to lead upwards, which then by the helical compression spring 13 of the strike button 12, the actuating rod 11 and the knife part 15 in the basic position returns. The tubular extension 25 of the knife part 15 has, as can be seen in particular from FIGS. 4 and 5, in the region of its free end, pin-shaped projections 39 directed radially outward. They are distributed over the scope twelve pin-shaped projections 39 directed radially outward are provided.

909810/00 (K

Al-

Below the transverse wall 2 4 are on the inside of the tubular extension 17 of the hood-shaped receptacle 10, As can be seen in particular from FIGS. 2 and 3, two superimposed in the axial direction of the actuating rod 10, circumferential rows of axially extending rib-shaped projections 40 and 41 are provided, the guide grooves 42 and 43 for the peg-shaped projections 39 of the tubular extension 25 of the knife part 15. The number of rib-shaped Projections 40 and 41 and the guide grooves 42 and 43 corresponds to the number of peg-shaped projections 39. The rib-shaped projections 40 and 41 of the one circumferential row are in relation to the rib-shaped projections 41 or 40 of the other circumferential row set to gap. The width of the rib-shaped projections 40, 41 of each of the both rows correspond essentially to the width of the guide grooves 43, 42 of the other row. The one another facing ends of the rib-shaped projections 40, both rows are each starting from the same side pointed on one side, the tips of one row being in line with the tips of the other row. Through this it is achieved in a simple manner that when the actuating rod 10 and the knife part non-rotatably connected therewith are moved downwards 15, the radially outwardly directed pin-shaped projections 39, which are initially located in the guide grooves 42 between the rib-shaped projections 40 of the upper row are located, on the ends of the lower row, which are tapered on one side, rib-shaped Strike projections 41 and thereby rotated to the side and get into the guide grooves 43 between the rib-shaped projections 41 of the lower row. at the return movement of the actuating rod 10, during which the radially outwardly directed peg-shaped projections 39 are guided upwards again, meet the radially outwardly directed pin-shaped projections 39 from the guide grooves 43 of the lower row of rib-shaped projections 41 coming against

-13-

909810/00 (H.

2725S23

the tapered ends of the upper row of rib-shaped projections 40, so that further rotation in the same direction takes place. When used as intended of the device thus inevitably a rotation of the knife part 15 takes place at the same time. The rotary movement of the knife part 15 is divided into two halves. The first half of the rotary movement occurs when the knife part moves downwards 15, during the second part of the rotary movement in the case of the return Upward movement of the knife part 15 is made. There is a turning of the knife part both during the downward movement as well as during the upward movement, a relatively large rotation can be made with each actuation of the Device can be achieved. In addition, however, it is also possible, provided that sufficient rotation of the knife part is maintained 15 each time the device is actuated, the one for generating the rotary movement from the vertical actuation movement required inclined surfaces to be provided with such a slight inclination that the wear that occurs is significant is reduced. This is possible because almost the entire distance of the downward movement and the subsequent Upward movement of the knife part 15 with the actuating rod 11 can be used to generate the rotary movement.

The rib-shaped projections 41 of the lower row are included pointed at their lower ends. As a result, the radially outwardly directed pin-shaped projections 39 of the non-rotatably reach with the actuating rod 11 displaceable knife part 15 automatically back into the guide grooves 43 of the lower row rib-shaped projections 41, if these during the downward movement of the knife part 15 with the actuating rod 11 from the lower ends of the guide grooves 43 of the lower row of rib-shaped projections 41 come out.

-14-

909810/00 (K

2725S23

As already mentioned, the embodiment shown is only an example of the implementation of the invention and this not limited to that. On the contrary, many other designs and applications are possible.

-15-

909810/0004

far side

Claims (17)

Dipl.-ing. LUDEWIG oipl.-phys. BUSE dipl phys 560OWUPPERrAL.! L NTERDÖRNEN 11 4 RUF (02 ΟΊ 5 5 36 1 I \ Ί Claims: 1. Device for chopping fruit, vegetables, onions or the like everting hood-shaped receptacle, in the upper area of which the over one up from the hood-shaped Admission of protruding actuating rod with impact button counter to the effect of an energy storage mechanism downwards a stripper plate is arranged in the knife part to be cut, the hood-shaped receptacle one bearing bush for guiding the actuating rod and one the bearing bush centrally at a distance surrounding tubular extension, in which a tubular, rearward extension of the strike button Can be inserted telescopically, and on the inside of the tubular extension of the hood-shaped receptacle means are provided for an inevitable rotation of the knife part when it is actuated, characterized that on the inside of the tubular extension (17) of the hood-shaped receptacle (10) two in Axial direction of the actuating rod (11) superimposed, circumferential rows of axially extending rib-shaped projections (40, 41) to form guide grooves (42, 43) for radially outwardly directed peg-shaped projections (39) of a rotationally fixed with the -16- 909810 / 000A 725923 Actuating rod (11) of the movable part (15) are provided, the rib-shaped projections (40 or 41) of a circumferential row to the rib-shaped Projections (41 or 40) of the other circumferential row are set on gap and the width of the rib-shaped Projections (40, 41) of each of the two rows essentially the width of the guide grooves (42, 43) correspond to the other row and the facing ends of the rib-shaped projections (40, 41) both rows are tapered on one side, starting from the same side, with the tips of one Row are roughly in line with the tips of the other row. 2. Apparatus according to claim 1, characterized in that the rib-shaped projections (41) of the lower row are pointed at their lower ends. 3. Apparatus according to claim 1 or 2, characterized in that the engaging in the guide grooves (42, 43), radially outwardly directed pin-shaped projections (39) a rear tubular extension (25) of the Knife part (15) are formed. 4. Device according to one of claims 1 to 3, characterized in that the pin-shaped projections (39) supporting, rear tubular extension (25) of the knife part (15) in its upper basic position its free end against a transverse wall (24) of the tubular extension (17) of the hood-shaped receptacle (10) is present. -17- 909310/0004 5. Apparatus according to claim 4, characterized in that the transverse wall (2 4) the bearing bush (16) for Guide the actuating rod (11) carries. 6. Device according to one of claims 1 to 5, characterized in that the one with the actuating rod (11) connected knife part (15) from a perpendicular to the actuating rod (11) extending disc (2 6) There is plastic, in its downward facing surface at least one vertical sheet with a sharpened Lower edge is used as a knife (27). 7. Apparatus according to claim 6, characterized in that the sheet metal forming the knife (27) in its length Has bends and covers almost the entire lower surface of the disc (26). 8. Apparatus according to claim 6 or 7, characterized in that the sheet metal forming the knife (2 7) at its upper edge Has breakthroughs and in the manufacture of the disc (2 6) with the formation of rib-shaped projections (27) is injected. 9. Device according to one of claims 6 to 8, characterized in that the sheet metal forming the knife (2 7) is sharpened on one side to form a sharpened lower edge. 10. Device according to one of claims 6 to 9, characterized in that the knife part (15) forming Disc (26) centrally on its upper side a tubular receptacle (2 9) for holding the actuating rod (11) having. -18- 909810/0004 11. Device according to one of claims 1 to 10, characterized in that the knife part (15) forming disc (26) in its upper basic position against the downwardly directed free end of the tubular Approach (17) of the hood-shaped receptacle (10) rests. 12. Device according to one of claims 1 to 11, characterized in that the to be slipped over the material to be cut hood-shaped receptacle (10) is divided in the horizontal plane with a quickly releasable connection (19), with im The stripper plate (14) is held in the area of the parting line (20). 13. Device according to one or more of the claims 1 to 12, characterized in that the tubular, rearward extension (18) of the strike button (12) on a transverse wall (30) a cap-like receptacle (31) for attachment to the upper end of the actuating rod (11). 14. The device according to claim 13, characterized in that that the tubular, rear extension (18) to form the strike button (12) upwards with an attachable Cap (32) is closed. 15. The device according to claim 14, characterized in that the cap (32) with a tubular extension (33) engages in the upper end of the tubular extension (18) and is held with a catch (34). 16. Device according to one of claims 13 to 15, characterized characterized in that the hollow cap (32) with a further tubular extension (35) against the bottom (36) of the cap-like receptacle (31) rests. 909810/0004 2725S23 17. Device according to one of claims 13 to 16, characterized in that the cap (32) closing the striker button (12) at the top has a diameter has, which is larger than the outer diameter of the tubular, Rückwärtsgien extension (18) of the Striker button (12) and the downwardly drawn edge (37) of the cap (32) with a side cranked out Wall part (38) of the tubular, rear extension (18) engages flatly in one another. 909810/0004