DE866332C - cap - Google Patents
capInfo
- Publication number
- DE866332C DE866332C DER6276A DER0006276A DE866332C DE 866332 C DE866332 C DE 866332C DE R6276 A DER6276 A DE R6276A DE R0006276 A DER0006276 A DE R0006276A DE 866332 C DE866332 C DE 866332C
- Authority
- DE
- Germany
- Prior art keywords
- section
- diagonals
- cross
- cap
- hollow cross
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/01—Caps for supporting mine roofs characterised by the shape of the cap, e.g. of specified cross-section
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Body Structure For Vehicles (AREA)
Description
Die Erfindung bezieht sich auf eine Kappe in Leichtmetall, die sich durch Biege- und Torsionsfastigkeit bzw. hohe Knickfestigkeit auszeichnet. Ihre Herstellung erfolgt wirtschaftlich durch Strangpressen.The invention relates to a cap in light metal that characterized by flexural and torsional fastness and high buckling strength. Her Production takes place economically by extrusion.
Es sind bereits Kappen bekannt, die aus einem Hohlprofil bestehen, dreieckigen Querschnitt besitzen und gegebenenfalls durch ein Füllstück in Gestalt eines aufrecht stehenden Flacheisens oder eines durchgehenden Steges armiert sind. Bei diesen bekannten Konstruktionen besteht die Gefahr, daß sich bei hohen Drücken die Seitenwände verformen oder der Querschnitt durch Torsion verzerrt wird.There are already known caps that consist of a hollow profile, have a triangular cross-section and optionally by a filler in shape an upright flat iron or a continuous bar are reinforced. In these known constructions there is a risk that at high pressures deform the side walls or the cross-section is distorted by torsion.
Die Erfindung verbessert die bekannten Konstruktionen, der Kappen mit Hohlquerschnitt dadurch, daß in diesem Hohlquerschnitt Diagonalen angeordnet sind und die freie Länge dieser Diagonalen durch unterschiedliche Dickenbemessung gleichmäßig knickfest gestaltet isst. In der Zeichnung ist der Gegenstand der Erfindung in einer Abbildung im Querschnitt dargestellt.The invention improves the known constructions, the caps with a hollow cross-section in that diagonals are arranged in this hollow cross-section and the free length of these diagonals due to different thickness measurements eats evenly kink-proof. In the drawing is the subject of the invention shown in a figure in cross section.
Die in bekannter Weise mit trapezförmigem Querschnitt ausgebildete Kappe besitzt die Diagonalen a, b, c und d, wobei die Diagonalen a und b entsprechend ihrer größeren Länge einen stärkeren Querschnitt erhalten als die Diagonalen c und d, um auf diese Weise gleiche Knick- und Beulfestigkeiten für sämtliche Diagonalen zu erreichen.The cap, which is designed in a known manner with a trapezoidal cross-section, has the diagonals a, b, c and d, the diagonals a and b being given a thicker cross-section than the diagonals c and d in accordance with their greater length, in order to ensure the same buckling and buckling strengths reachable for all diagonals.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DER6276A DE866332C (en) | 1951-07-06 | 1951-07-06 | cap |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DER6276A DE866332C (en) | 1951-07-06 | 1951-07-06 | cap |
Publications (1)
Publication Number | Publication Date |
---|---|
DE866332C true DE866332C (en) | 1953-02-09 |
Family
ID=7397286
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DER6276A Expired DE866332C (en) | 1951-07-06 | 1951-07-06 | cap |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE866332C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1032706B (en) * | 1955-06-25 | 1958-06-26 | Gutehoffnungshuette Sterkrade | Pit removal cap |
DE1111582B (en) * | 1956-11-26 | 1961-07-27 | Karl Gerlach | Cap for the pit made of steel or light metal with a box profile |
EP0117893A2 (en) * | 1983-03-02 | 1984-09-12 | Martha-Catharina Heiliger | Hinged cap for an underground support |
-
1951
- 1951-07-06 DE DER6276A patent/DE866332C/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1032706B (en) * | 1955-06-25 | 1958-06-26 | Gutehoffnungshuette Sterkrade | Pit removal cap |
DE1111582B (en) * | 1956-11-26 | 1961-07-27 | Karl Gerlach | Cap for the pit made of steel or light metal with a box profile |
EP0117893A2 (en) * | 1983-03-02 | 1984-09-12 | Martha-Catharina Heiliger | Hinged cap for an underground support |
EP0117893A3 (en) * | 1983-03-02 | 1986-10-08 | Martha-Catharina Heiliger | Hinged cap for an underground support |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE866332C (en) | cap | |
DE2260681A1 (en) | LIGHT ALLOY BOARD FOR PLATFORM VEHICLES | |
DE7907810U1 (en) | SECURITY RUNG | |
CH649741A5 (en) | ANTI-SLIP CHAIN FOR VEHICLE TIRES. | |
DE1578710B2 (en) | Metal skis | |
DE898998C (en) | Car body framework, especially for large vehicles | |
DE1704267U (en) | PROFILE. | |
DE584982C (en) | Waveguide, consisting of a tube made seamlessly or with only one seam | |
DE728557C (en) | bearings | |
DE561942C (en) | Wall dowel sleeve | |
DE694540C (en) | Iron mine support | |
DE649480C (en) | Reinforcement arranged loosely or detachably at the ends of the pit lining parts | |
DE2310660C2 (en) | Frame-shaped expansion for routes of underground operations, tunnels or the like | |
DE956805C (en) | Precast concrete stairs | |
DE865650C (en) | Knot connection for pipe trusses and method for producing a suitable pipe end | |
DE635328C (en) | Extendable fire brigade ladder made of metal with spars designed as trusses | |
AT123272B (en) | Network staff. | |
DE672691C (en) | Reinforced concrete skeleton for buildings of all kinds made of hollow reinforced concrete bodies ready for installation | |
DE480318C (en) | Suspensions on scales with an easily replaceable safety device | |
DE563322C (en) | Trusses, especially for aircraft | |
DE857268C (en) | Steel reinforcement for concrete | |
DE347063C (en) | Method of making grate grids | |
DE702912C (en) | Rolling grilles made of tubular or double tubular cross bars, which are connected by intermediate links | |
DE675646C (en) | Extendable fire ladder | |
DE1260218B (en) | Zipper |