DE7718106U1 - DEVICE FOR GRINDING FRUIT, VEGETABLES, ONIONS OR THE LIKE - Google Patents

Description

f * t '

PATENTANWÄLTE * * I: DIPL-ING. LUDEWiG DIPL.-PHYS. BUSE · D! PL.-PHYS. MENTZEL 5600 WUPPERTAL 2 UNDERDÖRNEN 114 RUF (02 02) 55 36 11/12 V

ηη 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 into 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 -

7718106 09/29/77

extends from the bearing bush only upwards and has on its inner side extending over the entire length guide grooves which are inclined towards the longitudinal direction. An intermediate piece with a corresponding radial projection * ¹ ^ engages in the guide grooves and 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, since the energy storage device formed by a helical compression spring attached to the actuating rod is supported on one end against the bearing bushing of the hood-shaped receptacle and on the other end against the intermediate piece. When knocking down the strike button and thus the knife part, the friction between the operator's hand and the strike button should be so great that the strike button and the operating rod with the knife part are transferred into the lower position essentially without rotation. The intermediate piece, which is non-positive against the rear extension of the striker button, rotates with respect to the actuating rod and striker button, which are non-rotatably connected to one another. The return of the knife part with the actuating rod, intermediate piece and impact button takes place with the helical compression spring, for which only the hand lying flat on the impact button has to be brought upwards. The friction between the hand and the strike button is now to be reduced, so that the strike button with the actuating rod, intermediate piece and knife part can now follow the rotary movement of the intermediate piece which is force-locked against the rear extension of the strike button.

The intended turning of the knife part thus takes place due to different retention forces between hand and Strike button when striking down and returning the strike button in 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

-3-

7718106 09/29/77

Plant coming areas can be used as intended However, use through oil, fat or the like Coefficient of friction obtained so that a proper Turning the knife part is not always guaranteed, especially after prolonged use. 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 twisting by positive locking Interlocking of parts takes place. This goal is achieved according to the invention that on the inside of the tubular extension of the hood-shaped receptacle two superimposed in the axial direction of the actuating rod, Circumferential rows of axially extending rib-shaped projections for the formation of guide grooves for radially following outwardly directed peg-shaped projections of a part that is non-rotatably displaceable with the actuating rod are provided, the rib-shaped projections of one circumferential row to the rib-shaped projections of the other circumferential row Row are set on a gap and the width of the rib-shaped projections of each of the two rows is essentially the width ff of the guide grooves of the other row correspond and the mutually facing ends of the rib-shaped projections of both rows each starting from the same side on one side are tapered, the tips of one row being roughly in line with the tips of the other row. 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 peg-shaped projections, which are initially located in the guide grooves between the rib-shaped projections of the upper row, on the Unilaterally pointed ends of the lower row of rib-shaped projections strike and are thereby turned to the side

-4-

7718106 09/29/77

and get into the guide grooves between the rib-shaped projections of the lower row. During the return movement of the actuating rod, during which the radially outwardly directed peg-shaped projections are guided upwards again, the radially outwardly directed peg-shaped projections from the guide grooves of the lower row of rib-shaped projections meet 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 divided into two halves. The first half of the rotary movement takes place during the downward movement of the knife part, while the second _f i part of the rotary movement takes place during the return upward movement | jj of the knife part. Since the knife part is rotated both during the downward movement and during the upward movement, a relatively large rotation can be achieved with each actuation of the device. In addition, however, it is also possible, provided that sufficient rotation of the knife part is observed! each time the device is actuated, the inclined surfaces required to generate the rotary movement from the vertical actuation movement are provided with such a slight inclination that the wear that occurs is substantially reduced. This is possible because almost the entire distance of the downward movement and the subsequent upward movement of the knife part with the actuating rod can be used to generate the rotary movement.

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 itself-

-5 -

7718106 09/29/77

active again in the guide grooves of the lower row rib-shaped projections if they come off with the operating rod during the downward movement of the knife part get out the lower ends of the guide grooves of the lower row of rib-shaped projections.

The engaging in the guide grooves, radially outward directed pin-shaped projections can be a rear be molded tubular extension of the knife part. This means that the Sf borrowed radially outwardly directed pin-shaped projections - 'assigned to an already required part of the device.

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 carry. As a result, the bearing bushing required for guiding the actuating rod becomes in a simple manner 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 its 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.

7718106 ~ ⁶ 9/29/77

In this way, the material to be cut is easily processed via your I hood-shaped receptacle is turned over, when actuated |

the knife part cut several times. ■

The bleeh forming the knife can be at its upper edge Have breakthroughs and be injected in the manufacture of the disc with the formation of rib-shaped projections. Through this the sheet metal forming the knife is fastened in a particularly inexpensive manner to the disc made of plastic, since it is molded directly in the manufacture of the disk in the Sprxtzgußverfahren. The breakthroughs on the upper edge of the sheet fill up with the material, so that a positive retention 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 operating rod be connected in a particularly simple manner by press fit with the disc forming the knife part.

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 Ansehlag 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

-7-

7718106 09/29/77

The stripper plate is held in place * The stripper plate. the 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. This allows the actuating rod to be attached in a simple manner to the tubular, rearward extension of the strike button will.

The tubular, rear extension can be used to form the The knock button must be closed with an attachable cap. This makes the push button special cheaper to produce and connectable to the actuating rod.

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 greater 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

- 8th-

7718106 09/29/77

Extensions interlock flat. This will make the a large strike button created in a particularly simple manner.

In the drawing, the invention is shown in an exemplary 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,

Fig.3 the inside of the tubular extension of the " hood-shaped recording 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 serves to ) chop up fruit, vegetables, onions or the like, and consists of a hood-shaped receptacle 10 made of plastic that is to be slipped over the material to be cut. In the upper area of the hood-shaped receptacle 10, the knife part 15 to be knocked down through a stripper plate 14 into the material to be cut is arranged via an actuating rod protruding upward out of the hood-shaped receptacle 10 with an impact button 12 against the action of a force storage device. 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 a tubular, rearward extension 18 of the strike button 12 when used as intended

7718106 " ⁹ Z9.09.77

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 a horizontal plane with a quickly releasable connection 19 divided, with the plastic stripper plate 14 being held in the region of the parting line 2 0. By solving the Lower part 21 of the upper part 22 of the hood-shaped receptacle 10, the wiper plate 14 can thus be removed for cleaning. This is also a complete cleaning the device possible.

The upper part 22 of the hood-shaped receptacle 10 is how particularly evident from FIG. I, provided at its upper end with a constriction 23 shaped like a truncated cone 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 2 4 is provided, which carries the bearing bush 16. Above the transverse wall 24, the tubular extension 17 serves to accommodate the tubular extension 18 of the strike button 12, while below the transverse wall 24 the tubular extension 17 for receiving a tubular extension 25 of the knife part 15 serves. The tubular extension 25 of the knife part 15 can come up against the transverse wall 24.

The knife part connected to the metallic operating rod 11 15 consists of a right-angled to the actuating rod extending disc 2 6 made of plastic, in the downward directed surface, as can be seen in particular from FIG. 4, a vertical sheet metal with a sharpened lower edge as Knife 27 is inserted. The length of the sheet metal forming the knife 27, as shown in particular in FIG. 5 evident,

-10-

7718106 09/29/77

Bends on, so that almost the entire lower surface of the Disc 2 6 is detected. The sheet metal forming the knife 27 has openings (not shown in greater detail) on its upper edge and is injected during the manufacture of the disk 26 with the formation of rib-shaped projections 28. Through this the sheet metal forming the knife is fastened in a particularly cheap way to the disc 26 made of plastic, because it is directly molded in during the manufacture of the disc using the injection molding process. The breakthroughs on the upper edge of the sheet fill up with the material, so that a positive retention is achieved. To form an ange-V sharpened lower edge, the sheet metal forming the knife 27 is sharpened on one side.

For fastening the knife part 15 to the actuating rod 11, the disk 26 forming the knife part 15 has a tubular receptacle 29 centrally on its upper side. As a result, the actuating rod 10 can be connected in a particularly simple manner by a press fit to the disk 26 forming the knife part 15. The tubular, rearward extension 18 of the strike button 12 is made of plastic and has a cap-like receptacle 31 on a transverse wall 30 for attachment to the upper end of the actuating rod 11. The attachment is effected f od by press fit. Or the like .. The tubular rearward extension 18 is sealed to form the shock button 12 upward with an attachable cap 32 made of plastic. The cap 32 engages with a tubular extension 33 in the upper end of the tubular extension 18 and is held with a catch 34. In order to prevent the hollow cap 32 from being pushed in during normal use, a further tubular extension is provided on the inside of the cap 32, which rests against the bottom 36 of the cap-like receptacle 31.

The cap 32, which closes the strike button 12 at the top, has a diameter which is larger than the outer diameter knife the tubular, rearward extension 18 of the strike button

-11-

7718106 09/29/77

12. The downwardly drawn edge 37 of the cap 32 engages with a laterally cranked wall part 38 of the raw-shaped, rear extension 18 flat one inside the other. 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 Reception 10, the free end of the tubular extension 25 of the knife part 15 against the transverse wall 24 of the tubular Approach 17 of the hood-shaped receptacle 10 come to the system !:

^ 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 Effect of the energy store 13, which is formed by a Sehraubendruekfeder. 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 against the other end the transverse wall 30 of the tubular extension 18 of the strike button 12 from. The helical compression spring 13 is on the Actuating rod 11 attached.

To return the knife part 15 to the basic position, the operator simply has to move his hand upwards. whereby then by the helical compression spring 13 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 radially outwardly directed peg-shaped projections 39 are provided.

-12-

7718106 09/29/77

Below the transverse wall 24 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 Form approach 25 of the knife part 15. The number of ribs ™ 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 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, 4.1 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, 41 of 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 peg-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 at one end, more rib-shaped Strike projections 41 and are thereby rotated to the side and thereby in the guide grooves 43 between the get rib-shaped projections 41 of the lower row. During the return movement of the actuating rod 10, in which the radially outwardly directed pin-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-

7718106 09/29/77

the ends of the upper row, which are pointed at one end, are rib-shaped Projections 40 so that further rotation occurs in the same direction. 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, made during the second part of the rotary movement during the returning upward movement of the knife part 15 will. Since a rotation of the knife part takes place both during the downward movement and during the upward movement, can a relatively large rotation can be achieved with each actuation of the device. Beyond that, however, it is too possible, if sufficient rotation of the knife part 15 is maintained each time the device is actuated, the generation the rotational movement from the vertical actuation movement required inclined surfaces with such a small Tendency to provide that the wear that occurs is significantly 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 peg-shaped projections 39 of the 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-

7718106 09/29/77

As already mentioned, the embodiment shown is only | an example implementation of the invention and this is not limited thereto. On the contrary, there are many others Designs and applications possible.

-15-

7718106 09/29/77

Claims (17)

-IS- PATENTANWÄLTE .. '· .. ·· .. · i; DiPL-ING ₁ LUDEWIG · dipl.-phys. BUSK dspl-phys. MENTZEI. WUPPERTAL 2 - UNDERPURNEN 114 RUF (0202) 5535 11/12 f) Expectations : Device for chopping fruit, vegetables, onions or the like, consisting of one over the material to be cut everting hood-shaped receptacle, in the upper area the one above from the hood-shaped Admission of protruding operating 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 in that 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 borrow from 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- 7718106 09/29/77 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, going from the same side, with the tips of one “J row should be 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. Device according to claim 1 or 2, characterized in that the engaging in the guide grooves (42, 43), radially outwardly directed peg-shaped projections (39) a rear tubular extension (25) of the Knife part (15) are formed. 4. Device according to tönern of claims 1 to 3, characterized characterized in that the pin-shaped projections (39) carrying the rear tubular extension (25) of the Knife part (15) in its upper basic position with its free end against a transverse wall (2 4) of the tubular Approach (17) of the hood-shaped receptacle (10) rests. l / 7718106 09/29/77 5. Apparatus according to claim 4, characterized in that that the transverse wall (24) carries the bearing bush (16) for guiding the actuating rod (11). 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 disc (26) extending at right angles to the actuating rod (11) 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 (27) 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 (27) 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 (2 6) centrally on its upper side a tubular receptacle (29) for holding the actuating rod (11) having. -18- 7718106 09/29/77 - 1Q— 11. Execution according to one of claims 1 to 1O, characterized in that the disc (26) forming the knife part (15) is in its upper basic position against the downwardly directed free end of the tubular extension (17) of the hood-shaped receptacle (10) is present. 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) in the horizontal plane with a quickly releasable connection (19) is divided, wherein in the area of the parting line (20) the stripper plate (14) is held. 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 that the cap (32) with a tubular extension (33) in the upper end of the tubular extension (18) engages and is held with a latch (34). 16. Device according to one of claims 13 to 15, characterized in that the hollow cap (32) with a another tubular extension (35) rests against the bottom (36) of the cap-like receptacle (31). -19- 7718106 09/29/77, 17. Device according to one of claims 13 to 16, characterized in that the cap (32) closing the strike 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 drawn down edge (37) of the cap (32) with a side cranked out Wall part (38) of the tubular, rearward extension (18) engages flatly in one another. 7718108 09/29/77