DE102019102120A1 - Pot chisel and method for inserting the pot chisel into a subsoil, arrangement with the pot chisel and with a floor plug and use of the pot chisel for excavating a base material - Google Patents

Abstract

Pot chisel 1 for insertion into a subsurface 15 in a driving-in direction R and for excavating base material in an excavation area 16 of the subsurface 15, so that a floor plug 17 can be arranged in the excavation area 16, the pot chisel 1 being a receiving bell 2 with an accommodating space 14 for accommodating the Base material, the receiving bell 2 comprises a jacket 3 surrounding the receiving space 14 with a cutting edge 5, the cutting edge 5 having a corrugated, serrated and / or serrated course 8.

Description

Technical field:

The invention relates to a pot chisel for introduction into a subsoil and for excavating base material in an excavation area of the subsoil, so that a floor plug can be arranged in the excavation area, with the features of claim 1 and an arrangement with the pot chisel and with the floor plug with the features of The invention also relates to a use of the pot chisel for excavating the base material in the excavation area of the subsurface with the features of claim 13 and a method for introducing the pot chisel into the subsurface with the features of claim 15.

Background:

Pot chisels are usually used to make a hole in a relatively hard surface, e.g. in a tar plate. For this purpose, the pot chisel has an impact surface for hitting and driving the container into the subsurface, a cutting edge for cutting into the subsurface and a container for receiving base material.

For example, the publication describes DE 10 2012 107 204 B4 , which is probably the closest prior art, a device and a method for making a hole for inserting a floor plug into hard floors. The device comprises a pot chisel with a cylindrical, pot-shaped body open at the bottom, on the upper side of which a horizontal, flat anvil surface is arranged.

Description:

The object of the invention is to provide a functionally improved pot chisel for introduction into a subsurface and for excavating base material in an excavation area of the subsurface, so that a floor plug can be arranged in the excavation area.

This object is achieved by a pot chisel with the features of claim 1, by an arrangement with the features of claim 11, by using the pot chisel with the features of claim 13 and by methods for introducing the pot chisel into a subsurface with the features of claim 15 solved. Preferred or advantageous embodiments of the invention result from the subclaims of the following description and / or the attached figures.

A pot chisel is proposed which is designed for introduction into a subsurface and for excavating base material in an excavation area of the subsurface, so that a floor plug can be arranged in the excavation area. For example, the surface is solid and / or hard material such as stone, asphalt or tar. The pot chisel is formed in particular from a metal, in particular from steel.

The floor dowel to be arranged and / or arranged in the excavation area preferably has a tubular dowel shaft with a driving-in tip at a first end and with a dowel head at a second end. For example, the dowel head is polygonal, in particular hexagonal. The dowel head preferably has a maximum height of up to 90 millimeters, in particular a maximum of up to 70 millimeters and in particular a maximum of up to 60 millimeters.

Optionally, the floor anchor can be opened by striking the anchor head, e.g. with a jackhammer, driven in with the driving tip in the excavation area. As a result, the dowel head can preferably be arranged in the excavation area in such a way that it is arranged at ground level or largely at ground level with an underlying surface adjacent to the excavation area. In particular, a depth of the excavation area essentially corresponds to and / or is equal to a height of the dowel head.

The floor dowel is preferably designed for fastening objects which have an elongated tube, as is e.g. is the case with street signs or flagpoles. The elongated tube can in particular be inserted into the dowel shaft and can be fixed to the dowel head.

The pot chisel has a receiving bell with a receiving space for receiving the base material. The receiving bell preferably has an opening on one side and is closed on the opposite side. The receiving bell can optionally have viewing holes on the opposite side. The receiving bell comprises a jacket with a cutting edge. The jacket preferably completely encloses the receiving space.

Optionally, the cutting edge forms a free end of the jacket. In particular, the cutting edge frames the opening. The cutting edge is preferably designed to engage and break open the subsurface in a driving-in direction, in particular when force is exerted on the pot chisel. The sheath preferably penetrates gradually into the subsurface by further force to record the basic material in the recording room.

According to the invention, the cutting edge has a corrugated, serrated and / or serrated course. The cutting edge preferably comprises a plurality of shafts, serrations and / or teeth arranged in a row.

It is advantageous that the cutting edge can be pushed into the subsurface more easily and can be pushed through it more easily due to the corrugated, serrated and / or serrated course. As a result, effort and labor during excavation of the base material in the excavation area can be saved.

In a preferred embodiment of the invention, the corrugated, serrated and / or serrated course of the cutting edge is continuous and / or uninterrupted. In particular, the shafts, serrations and / or teeth of the cutting edge are continuously strung together and / or they follow one another directly.

It is particularly preferred that the cutting edge in the driving-in direction is a maximum of up to 12 millimeters, preferably a maximum of up to 10 millimeters, in particular a maximum of up to 8 millimeters wide and / or at least 5 millimeters wide. In particular, each of the shafts, serrations and / or teeth has a length from a valley to a ridge and / or to a tip of the shaft, serration and / or tooth of up to a maximum of 12 millimeters, preferably up to a maximum of 10 millimeters and in particular up to a maximum of 8 millimeters. Specifically, each of the shafts, serrations and / or teeth has a length from the valley to the ridge and / or to the tip of the shaft, serration and / or tooth of at least 5 millimeters.

A preferred constructive embodiment of the invention provides that the jacket comprises an upper jacket section and an intermediate jacket section. The intermediate casing section is preferably arranged between the cutting edge and the upper casing section. In particular, the intermediate sheath section adjoins the cutting edge directly and / or seamlessly. In particular, the upper jacket section directly adjoins the intermediate jacket section. The cutting edge, the intermediate casing section and the upper casing section optionally form the casing and / or together surround the receiving space. In particular, the cutting edge, the intermediate casing section and the upper casing section are connected to one another integrally, in one piece and / or in one material.

In a preferred implementation of the invention, a material thickness of the cutting edge corresponds to a material thickness of the intermediate jacket section. Alternatively, the cutting edge and the intermediate casing section have a material thickness that increases in the direction of the upper casing section. A material thickness of the intermediate casing section is preferably less than a material thickness of the upper casing section. In particular, the cutting edge and the intermediate casing section are tapered with respect to the upper casing section. This makes it easier to overcome resistance of the subsurface when the gouge is inserted into the subsurface. In particular, a cutting effect of the cutting edge can be improved. In particular, the cutting edge and the intermediate sheath section can penetrate the subsurface more easily.

In a particularly preferred constructive embodiment of the invention, the intermediate casing section and / or the upper casing section in the driving direction is / are in each case a maximum of up to 12 millimeters, preferably a maximum of up to 10 millimeters and in particular a maximum of up to 8 millimeters wide. Alternatively, the width ratios can also be divided differently, e.g. the cutting edge can be less wide or wider than the intermediate casing section and / or than the upper casing section. A maximum overall width of the casing in the driving-in direction and / or a maximum overall height of the receiving space of 36 millimeters, preferably of a maximum of 30 millimeters and in particular of a maximum of 24 millimeters, results.

In the context of the invention, it is particularly preferred that an overall width of the casing in the driving-in direction and / or an overall height of the receptacle is at least 30 percent, preferably at least 40 percent, in particular at least 50 percent and / or at most 70 percent less than a total height of the anchor head of the floor anchor. Therefore, the pot chisel must be placed several times, for example two, three or four times, on the surface and hammered into it in order to be able to dig out the excavation area sufficiently deep so that the dowel head can be arranged at ground level and / or essentially at ground level. However, the smaller overall width of the casing is particularly advantageous since it thereby has increased strength and / or rigidity and is therefore particularly resistant to damage and / or bending when it strikes the pot chisel.

In the context of the invention, it is particularly preferred that the jacket is polygonal, in particular hexagonal, in a plan view from below, in particular on the cutting edge. In particular, the opening and / or the receiving space is / are polygonal, preferably hexagonal. The outer contour and / or the size of the casing preferably corresponds to the Outer contour and / or the size of the dowel head. As a result, the dowel head can be arranged with a precise fit, in particular without reworking, in the excavation area excavated by the pot chisel. In particular, the dowel head is arranged in the excavation area excavated with the pot chisel in a form-fitting manner or essentially in a form-fitting manner with an underlying surface. In particular, the polygonal, for example hexagonal, design of the dowel head and / or the casing forms a twist lock for the object to be anchored to the floor dowel and which has the elongated tube. This can advantageously ensure that the anchored object does not move out of its position unintentionally.

In a preferred embodiment of the invention, the receiving bell has an end face. For example, the end face forms the closed side of the receiving bell, which is in particular arranged opposite the opening. The end face preferably rises obliquely upwards. In particular, the face extends at an angle of at least 100 degrees, preferably of at least 110 degrees, in particular of at least 120 degrees and / or a maximum of 140 degrees to the jacket.

A preferred constructive implementation of the invention provides that the pot chisel has an annular head. The annular head is preferably arranged on the end face. In particular, the ring-shaped head is placed centrally and / or centrally on the end face. In particular, the annular head is integrally, integrally and / or integrally connected to the end face.

For example, the annular head has a flat and / or flat head surface and a central blind hole. The head surface for opening is preferably e.g. suitable and / or designed with a sledgehammer or jackhammer to drive the jacket with the cutting edge first into the ground. Alternatively or optionally additionally, the blind hole in the tubular head can be driven in, e.g. with the jackhammer, suitable and / or designed to drive the jacket into the ground.

Another object of the invention is an arrangement with the pot chisel and with the floor plug according to the previous description and / or according to claims 1 to 10. The floor plug is preferred as in the publication DE 10 2015 118 073 A1 described.

The use of the arrangement according to the previous description and / or according to claim 11 or 12 forms a further subject of the invention. The pot chisel is used to excavate the base material in the excavation area of the subsoil, only the floor plug being arranged and / or arranged in the excavation area.

Another object of the invention is a method for introducing the pot chisel into the subsurface and for excavating the base material in the excavation area of the subsurface with the pot chisel according to the previous description and / or according to one of claims 1 to 10. Preferably, the pot chisel on the subsurface put on and thereby an excavation area defined, in which the floor anchor is / should be arranged later. As part of the process, the pot chisel is e.g. driven into the subsurface by striking the head surface and / or by driving into the blind hole until the receiving space is at least partially, preferably completely, filled with the base material from the excavation area. Furthermore, the pot chisel is loosened from the ground and raised. Subsequently, the base material received in the receiving space is preferably removed and / or base material remaining in the excavation area is manually removed therefrom.

In a preferred further process step, the pot chisel is placed again on the ground in the excavation area. It is preferable to strike the pot chisel so that the casing is driven into the ground again in the excavation area in order to take up further base material in the receiving space. The pot chisel is preferably detached from the subsurface again and raised.

As a result, the base material received in the receiving space can be lifted out of the excavation area and can subsequently be removed from the receiving space. Alternatively, basic material remaining in the excavation area can be manually removed from it.

The floor plug is particularly preferably arranged in the excavation area. In particular, the dowel head is struck for this, so that the dowel shaft with the driving-in tip is driven into the ground centrally or essentially centrally in the excavation area and / or so that the dowel head is thereby arranged at ground level or essentially at ground level in the excavation area.

• 1 eine seitliche Draufsicht auf einen Topfmeißel zum Einbringen in einen Untergrund und zum Ausheben von Grundmaterial in einem Aushubbereich des Untergrunds;
• 2 eine Draufsicht von unten auf eine Schneide des Topfmeißels aus 1;
• 3 ein Bodendübel, der in dem Aushubbereich angeordnet ist;
• 4 eine Draufsicht von oben auf einen Dübelkopf des Bodendübels auf 3.

Further features, advantages and effects of the invention result from the following description of preferred exemplary embodiments of the invention. Show:

• 1 a side plan view of a pot chisel for insertion into a subsurface and for excavating base material in an excavation area of the subsurface;
• 2nd a bottom view of a cutting edge of the pot chisel 1 ;
• 3rd a floor plug, which is arranged in the excavation area;
• 4th a top view of a dowel head of the floor anchor 3rd .

Corresponding or identical parts are provided with the same reference symbols in the figures.

In 1 is a side plan view of a pot chisel 1 shown. The pot chisel 1 is made of a metal, especially steel. The pot chisel 1 is for installation in a subsurface 15 in a driving direction R and for excavating base material in an excavation area 16 of the underground 15 educated. In the excavation area 16 can then use a suitable floor plug 17th to be ordered. The one in the excavation area 16 arranged floor anchors 17th is in 3rd shown in a longitudinal section.

The floor plug 17th has a tubular dowel shaft 18th with a driving tip 19th at one end and with a dowel head 20 at the other end. The floor plug 17th is with the driving tip 19th first in the center of the excavation area 16 smashed the one with the pot chisel 1 was excavated. This brings the dowel head 20 in the excavation area 16 to lie and is at ground level or essentially at ground level with an adjacent underground 15 arranged.

As in 4th shown is the dowel head 20 is a polygonal, in particular hexagonal, plan view from above. A height H of the dowel head 20 is according to 3rd preferably a maximum of 90 millimeters, in particular a maximum of 70 millimeters and in particular a maximum of 60 millimeters. The gouge 1 is used exclusively for an excavation area 16 for this floor plug 17th to accomplish.

The pot chisel 1 as he is in 1 is shown has a receiving bell 2nd with a coat 3rd on. The reception bell 2nd is on one side by an end face 4th closed and opened on the opposite side. The coat 3rd surrounds a recording room 14 ( 2nd ) the bell 2nd , which is designed to receive the base material.

The coat 3rd is through a cutting edge 5 , an intermediate jacket section 6 and an upper jacket section 7 educated. The cutting edge 5 , the intermediate jacket section 6 and the upper jacket section 7 are connected to one another in one material, integrally and / or in one piece.

The cutting edge 5 frames an opening 13 ( 2nd ) the bell 2nd and forms a free end of the jacket 3rd . The cutting edge 5 has an uninterrupted, continuous corrugated, serrated and / or serrated course 8th on. This is due to lined up waves, serrations and / or teeth 9 educated.

The cutting edge 5 has a width in the driving direction R. B1 of up to 12 millimeters, preferably up to 10 millimeters and in particular up to 8 millimeters. To the cutting edge 5 close against the driving direction R of the intermediate jacket section 6 and the upper jacket section 7 on. In particular, the intermediate jacket section 6 between the cutting edge 5 and the upper jacket section 7 arranged. Each of the jacket sections 6 , 7 has a width in the driving direction R. B2 , B3 on that of width B1 the cutting edge 5 corresponds in the driving direction R and / or essentially the same.

In an alternative embodiment, the widths B1 , B2 , B3 other can also be distributed, for example the cutting edge 5 be made wider or less wide than the intermediate casing section 6 and / or as the upper jacket section 7 .

The coat 3rd thus has an overall width in the driving direction R. G and / or the recording room 14 a total height G of a maximum of 36 millimeters, preferably of a maximum of 30 millimeters and in particular of a maximum of 24 millimeters. So the total width G of the coat 3rd and / or the total height G of the recording room 14 at least 30 percent, preferably at least 40 percent, in particular at least 50 percent and / or at most 70 percent less than the height H of the dowel head 20 ( 3rd ) of the appropriate floor anchor 17th .

The cutting edge 5 and the intermediate jacket section 6 have a matching material thickness M1 ( 2nd ) compared to a material thickness of M2 ( 2nd ) of the upper section of the jacket 7 is rejuvenated. Alternatively, it is possible that the material thickness M1 of the cutting edge 5 and the material thickness of the intermediate jacket section 6 to the upper section of the jacket 7 preferred steadily increases.

The face 4th the receiving bell 2nd runs from the coat 3rd diagonally upwards. In particular, it is at an angle of at least 100 degrees, preferably at least 110 degrees, in particular at least 120 degrees and / or at most 140 degrees to the jacket 3rd arranged.

Center on the front 4th is a tubular head 10th arranged and / or put on. The tubular head 10th has a horizontal, flat and / or flat head surface 11 and a central blind hole 12th on.

2nd shows a plan view from below of the coat 3rd the receiving bell 2nd , especially on the cutting edge 5 that the opening 13 the receiving bell 2nd framed. The coat 3rd is polygonal, especially hexagonal. It corresponds in size and / or outer contour K the size and / or outer contour L of the dowel head 20 ( 4th ).

The one with the pot chisel 1 excavated excavation area 16 in the underground 15 ( 3rd ) is also polygonal, in particular hexagonal, so that the polygonal, in particular hexagonal, dowel head 20 the matching floor anchor 17th ( 3rd ) can be arranged positively or essentially positively therein. When an object is anchored with an elongated pipe, e.g. a street sign or a flagpole, over the floor anchor 17th this is due to the polygonal, in particular hexagonal, design of the dowel head 20 and / or the jacket 3rd an anti-twist device 21 for the object.

For excavating the basic material 15 from the excavation area 16 becomes the pot chisel 1 with the cutting edge 5 ahead on the underground 15 so that the excavation area 16 through the outer contour of the jacket 3rd is set. Use a suitable striking tool, e.g. a jackhammer or sledgehammer, to hit the head surface 11 Of the head 10th hammered. Alternatively or optionally additionally, it can also be inserted into the blind hole 12th be hit. This will dig the coat 3rd with the cutting edge 5 first in driving direction R into the underground 15 .

Especially on hard surfaces such as stone, tar or asphalt, it is advantageous that the cutting edge 5 the wavy, serrated and / or serrated course 8th has because the waves, serrations and / or teeth 9 dig better and easier into the ground. The taper of the material thickness M1 of the cutting edge 5 and the intermediate jacket section 6 compared to the material thickness M2 of the upper jacket section 7 supports the digging effect of the cutting edge 5 .

It gets on the pot chisel 1 struck until the receiving bell 2nd with her coat 3rd partially, preferably completely in the subsurface 15 stuck and the recording room 14 thereby with basic material from the excavation area 16 is filled. Then the pot chisel 1 from the underground 15 loosened and raised so that base material arranged in the receiving area from the excavation area 16 is lifted out. This is then from the recording room 14 away. As an alternative or optional supplement, the excavation area 16 remaining basic material manually from the excavation area 16 away.

Below is the pot chisel 1 again on the excavation area 16 put on and hammered in so that by loosening and lifting the pot chisel again 1 even more basic material from the excavation area 16 excavated and in the recording room 14 can be included. This will be after lifting the pot chisel 1 from the recording room 14 removed again. As an alternative or optional supplement, the excavation area is again used 16 remaining basic material manually from the excavation area 16 away.

The hammering in again 1 is particularly necessary because the total height G of the recording room 3rd and / or the total width G of the coat 3rd is dimensioned significantly smaller in the driving direction R than the height H the later in the excavation area 16 dowel head to be used 20 ( 3rd ). However, the coat is 3rd due to its smaller overall width G advantageously more stable, in particular it has increased strength and / or rigidity. This can extend the life of the pot chisel 1 increase.

Putting on, hammering in, loosening and lifting the pot chisel 1 continues until a depth T the excavation area 16 the height H of the dowel head 20 the matching floor anchor 17th ( 3rd ) has reached. So the dowel head 20 form-fit at ground level or essentially form-fit at ground level in the excavation area 16 be arranged as in 3rd is shown.

Reference list

1

Pot chisels

2nd

Receiving bell

3rd

coat

4th

Face

5

Cutting edge

6

Intermediate jacket section

7

upper mantle section

8th

wavy, serrated, toothed course

9

Waves, jags, teeth

10th

head

11

Head area

12th

Blind hole

13

opening

14

Recording room

15

Underground

16

Excavation area

17th

Floor anchors

18th

Dowel shaft

19th

Driving tip

20

Dowel head

21

Anti-twist device

B1

Wide cutting edge

B2

Wide intermediate jacket section

B3

Width of the upper section of the jacket

G

Overall width of the jacket / overall height of the receiving space

H

Height of dowel head

K

Size / outer contour coat

L

Size / outer contour of dowel head

M1

Material thickness cutting edge / intermediate sheath section

M2

Material thickness of the upper jacket section

R

Driving direction

T

Deep excavation area

QUOTES INCLUDE IN THE DESCRIPTION

This list of documents listed by the applicant has been generated automatically and is only included for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 102012107204 B4 [0003]
• DE 102015118073 A1 [0024]

Claims (15)

Pot chisel (1) for insertion into a subsurface (15) in a driving-in direction (R) and for excavating base material in an excavation area (16) of the subsurface (15), so that a floor plug (17) can be arranged in the excavation area (16), wherein the pot chisel (1) has a receiving bell (2) with a receiving space (14) for receiving the base material, the receiving bell (2) comprising a casing (3) surrounding the receiving space (14) with a cutting edge (5), characterized that the cutting edge (5) has a corrugated, serrated and / or toothed course (8). Pot chisel (1) after Claim 1 , characterized in that the corrugated, serrated and / or toothed course (8) of the cutting edge (5) is continuous and / or uninterrupted. Pot chisel (1) after Claim 1 or 2nd , characterized in that the cutting edge (5) in the driving direction (R) is up to 12 millimeters, preferably up to 10 millimeters, in particular up to 8 millimeters and / or at least 5 millimeters wide. Pot chisel (1) according to one of the preceding claims, characterized in that the casing (3) comprises an upper casing section (7) and an intermediate casing section (6), the intermediate casing section (6) between the cutting edge (5) and the upper casing section ( 7) is arranged. Pot chisel (1) after Claim 4 , characterized in that a material thickness (M1) of the cutting edge (5) and / or the intermediate casing section (6) is tapered compared to a material thickness (M2) of the upper casing section (7). Pot chisel (1) according to one of the preceding claims, characterized in that the material thicknesses of the cutting edge (5) and the intermediate casing section (6) match. Pot chisel (1) according to one of the Claims 4 to 6 , characterized in that the intermediate casing section (6) and / or the upper casing section (7) in the driving direction (R) is / are in each case a maximum of up to 12 millimeters, preferably a maximum of up to 10 millimeters and in particular a maximum of up to 8 millimeters. Pot chisel (1) according to one of the preceding claims, characterized in that the casing (3) is polygonal, in particular hexagonal, in a plan view from below. Pot chisel (1) according to one of the preceding claims, characterized in that the receiving bell (2) has an end face (4) which is at an angle of at least 100 degrees, preferably at least 110 degrees, in particular at least 120 degrees and / or is arranged at a maximum of 140 degrees to the jacket (3). Pot chisel (1) according to one of the preceding claims, characterized in that the pot chisel (1) has an annular head (10) which is arranged on the end face (4) and / or is placed thereon, the annular head (10 ) has a head surface (11) and a central blind hole (12). Arrangement with the pot chisel (1) and with the floor dowel (17) according to one of the preceding claims, characterized in that the floor dowel (17) can be arranged in the excavation area (16) excavated with the pot chisel (1), so that a dowel head (20 ) of the ground anchor (17) can be at ground level or essentially at ground level in the excavation area (16), with an overall width (G) of the casing (3) in the driving direction (R) and / or a total height (G) of the receiving space (14) The receiving bell (2) is at least 30 percent, preferably at least 40 percent, in particular at least 50 percent and / or at most 70 percent less than a height (H) of the dowel head (20) of the floor anchor (17). Order after Claim 11 , characterized in that the dowel head (20) is polygonal, in particular hexagonal, an outer contour and / or size (K) of the casing (3) corresponding to an outer contour and / or size (L) of the dowel head (20). Order after Claim 12 , characterized in that the polygonal, in particular hexagonal, design of the dowel head (20) and / or the casing (3) forms / form an anti-rotation device (21) for a component to be anchored to the floor dowel (17). Use of the arrangement with the pot chisel (1) and with the floor plug (17) after Claim 11 or 12th , characterized in that the pot chisel (1) is used to excavate the base material in the excavation area (16) of the subsoil (15) and that only the floor plug (17) is / can be arranged in the excavation area (16). Method for inserting the pot chisel (1) according to one of the Claims 1 to 10th into the subsurface (15) and for excavating the base material in the excavation area (16) of the subsurface (15), so that a floor plug (17) in the excavation area (16) can be arranged, characterized in that the pot chisel (1) is driven into the ground (15) until the receiving space (14) is at least partially, preferably completely, filled with the base material from the excavation area (16) and that the pot chisel (1 ) is released from the subsurface (15) and raised.

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